Silicon suboxide(SiO_(x))is one of the most attractive candidates for anode materials for high-energy-density lithium-ion batteries due to its high specific capacity and its relatively lower volume expansion than that...Silicon suboxide(SiO_(x))is one of the most attractive candidates for anode materials for high-energy-density lithium-ion batteries due to its high specific capacity and its relatively lower volume expansion than that of Si.However,its low initial Coulombic efficiency(ICE)seriously affects its practical applications.In this work,we demonstrate a scalable and effective strategy to enable a high ICE of the SiO_(x) electrode through a MnO-assisted disproportionation reaction.The obtained Mn_(2)SiO_(4)-Si-SiO_(x)@C(MSS@C)material shows a reduced lithium irreversible consumption in the first cycle.The Mn_(2)SiO_(4) phase can store lithium through a conversion reaction with a smaller volume change(33%)than SiO_(x),which helps to maintain the structural stability of MSS@C during cycling.Meanwhile,the metallic Mn nanoparticles generated from Mn_(2)SiO_(4) during the lithiation process facilitate electron conduction,thus improving the electrode reaction kinetics.Owing to the synergetic effects,the MSS@C material exhibits a higher ICE(79.51%)compared to 60.91%of pure SiO_(x),and a superior cyclic performance(832 mAh g^(−1) at 0.5 A g^(−1) after 350 cycles with a capacity retention of 90.4%).This work offers a new approach to increase the ICE while improving the electrode reaction kinetics and cycling stability of SiO_(x)-based materials.展开更多
The ecological civilization in the new age is one important aspect for undergraduates.We must enhance the concept of their civilization and improve the quality of civilization.Carrying out ecological civilization educ...The ecological civilization in the new age is one important aspect for undergraduates.We must enhance the concept of their civilization and improve the quality of civilization.Carrying out ecological civilization education in colleges and universities has a practical significance for enriching the contents of ideological and political education to realize their all-round development.Nowadays,some undergraduates lack awareness of ecological civilization and ignore its importance.For this reason,undergraduates need to pay attention to ecological civilization and improve their own ecological civilization literacy to promote the all-round development in qualities in the new age.This paper mainly analyzes the current problems in undergraduates’ecological civilization education and explores effective strategies to solve the current problems in undergraduates’ecological civilization education.The strategies include integrating ecological civilization resources,innovating methods of ecological civilization,strengthening ecological educator team construction,embodying ecological culture in campus construction and creating the atmosphere,emphasizing innovative practices for ecological civilization,strengthening publicity of social-ecological civilization,and attaching importance to family education of ecological civilization.展开更多
As one of the core courses for computer-related majors,the Python programming course has become increasingly important in the era of artificial intelligence.It aims to help students develop good computer thinking and ...As one of the core courses for computer-related majors,the Python programming course has become increasingly important in the era of artificial intelligence.It aims to help students develop good computer thinking and improve their abilities in programming and data analysis.The application of artificial intelligence technology in the teaching of Python programming courses is of great significance for optimizing the allocation of teaching resources,enriching students’learning experience,and significantly improving teaching quality.Based on this,this paper first briefly expounds on the importance of applying artificial intelligence technology in the teaching of Python programming courses.On this basis,it focuses on exploring effective strategies for the teaching reform of Python programming courses based on artificial intelligence technology,hoping to provide new ideas for the teaching of Python programming courses and contribute to cultivating more Python programming talents with artificial intelligence literacy.展开更多
Secondary vocational schools as the training of professional personnel of the main position, should be combined with the needs of the development of the times, continuous innovation of teaching ideas, make up for the ...Secondary vocational schools as the training of professional personnel of the main position, should be combined with the needs of the development of the times, continuous innovation of teaching ideas, make up for the deficiency of traditional electronic courses, with the new education model to drive the modernization of teaching ideas, the students into a strong professional ability of electronic technical personnel. Therefore, this paper mainly through the analysis of the shortcomings of electronic specialty and its improvement measures, and for the optimization of classroom teaching model to provide some reasonable suggestions, hoping to effectively promote the good development of electronic specialty.展开更多
In recent years, people's economic income level has increased significantly, and higher requirements are put forward for the construction quality of construction projects. The quality of construction projects is d...In recent years, people's economic income level has increased significantly, and higher requirements are put forward for the construction quality of construction projects. The quality of construction projects is directly related to the construction life and benefit creation, and affects the development of the construction industry.Therefore, as a participant in the construction project, we must pay attention to the project quality management ideologically and carry out quality management activities based on appropriate methods to ensure the smooth construction and completion of the construction project.Next, the article discusses the effective strategies to improve the construction quality control of construction engineering.展开更多
With the deepening of the new curriculum reform of Chinese in primary schools, teachers need to adjust and optimize Chinese homework in primary schools. Traditional homework design is mainly based on copying, which is...With the deepening of the new curriculum reform of Chinese in primary schools, teachers need to adjust and optimize Chinese homework in primary schools. Traditional homework design is mainly based on copying, which is a large number, time-consuming, laborious and mechanized homework mode, and it is difficult to fully mobilize and stimulate students autonomy and interest in learning. Therefore, teachers need to optimize the content of Chinese homework from the perspective of students to improve students practical ability.展开更多
With the rapid development of the new curriculum reform, in the current higher education, teachers attach great importance to shaping and improving students core literacy. In history classroom teaching, teachers shoul...With the rapid development of the new curriculum reform, in the current higher education, teachers attach great importance to shaping and improving students core literacy. In history classroom teaching, teachers should keep up with the development of the times, change the relatively backward teaching methods and use diversified teaching methods to further promote teaching innovation and reform. Based on the core literacy, this paper analyzes the shortcomings of history classroom teaching in senior high schools. By discussing the effective measures of history classroom teaching in senior high school, this paper is committed to promoting the development of students core literacy and efficiently promoting students enthusiasm for history learning.展开更多
As we all know, the construction project from the implementation to the completion will go through a number of processes, involving different stages of construction, of which the decoration stage is a very important l...As we all know, the construction project from the implementation to the completion will go through a number of processes, involving different stages of construction, of which the decoration stage is a very important link. Decoration is an important process of complementing architectural details, realizing functions and presenting styles. At the same time, a large number of materials and resources will be used in architectural decoration. The current construction of a green ecological society under the development requirements of all walks of life should actively carry out their social responsibilities, the concept of ecological implementation of specific production links to go. In architectural decoration design, effective design strategies are used to put the ecological concept into place, thus reducing the burden on the environment.展开更多
In order to help students preliminarily perceive the importance of reading, teachers must pay attention to students' reading, and through a certain amount of reading the whole book, provide students with better re...In order to help students preliminarily perceive the importance of reading, teachers must pay attention to students' reading, and through a certain amount of reading the whole book, provide students with better reading guidance, in order to improve students' reading ability. For single reading, students often can not feel the charm of the text, so using a certain way to let students establish a reading perception of the whole book, can help students improve their reading level, but also let students gradually perceive the reading effect, so as to establish a stronger emotional resonance.展开更多
Effective learning is not merely a matter of an individual having a high IQ. What appears to be important is the learners＇ ability to respond to the particular learning situation and to manage their learning in an ap...Effective learning is not merely a matter of an individual having a high IQ. What appears to be important is the learners＇ ability to respond to the particular learning situation and to manage their learning in an appropriate way. Studies of successful and unsuccessful learners show that people who succeed in learning have developed a range of strategies from which they are able to select those that are most appropriate for a particular problem, to adapt them flexibly for the needs of the specific situation, and to monitor their level of success. Based on the assumption that integrating strategies into foreign language teaching is both valuable and achievable and that their accomplishment can enhance independent foreign language learning, this paper offered a model of strategy-based instruction, which includes both explicit and implicit integration of strategies into classroom instruction.展开更多
Music performance major requires students to have rich experience in professional stage practice.Therefore,in the process of promoting the teaching of music performance,the effective connection between the teaching of...Music performance major requires students to have rich experience in professional stage practice.Therefore,in the process of promoting the teaching of music performance,the effective connection between the teaching of professional music performance skills and professional stage experience practice needs to be emphasized.With professional experience in teaching practice,this article analyzes the course teaching and stage practice of music performance,suggesting several problems in the current teaching methods,and from different angles,this article suggests countermeasures to effectively dock professional skills teaching with stage practice in hope to provide practical reference for relevant professionals so as to better cultivate and improve students’comprehensive application ability in music performance.展开更多
FePt nanoparticles in mesoporous silica are fabricated by a simple stepwise synthesis strategy.A pre-annealing temperature-dependent coercivity-ageing effect in FePt nanoparticles is observed at room temperature.For f...FePt nanoparticles in mesoporous silica are fabricated by a simple stepwise synthesis strategy.A pre-annealing temperature-dependent coercivity-ageing effect in FePt nanoparticles is observed at room temperature.For facecentered cubic（fcc）structured FePt nanoparticles,the ageing effect is sensitive to the pre-annealing temperature,especially when the temperature is close to the phase-transition.The special magnetic behavior of FePt nanoparticles reveals that the physical properties gradually change between fee and face-centered tetragonal structures,and will deepen our understanding of the mechanism of such magnetism in FePt nanoparticles.展开更多
Aiming at the problem of enterprises' ability to develop international market, this research combines the development status of Chinese enterprises, firstly makes a comprehensive analysis of the existing problems ...Aiming at the problem of enterprises' ability to develop international market, this research combines the development status of Chinese enterprises, firstly makes a comprehensive analysis of the existing problems in the process of international market development, and on this basis, puts forward effective strategies to improve the ability of international market development, laying a foundation for further development of enterprises. Research shows that although Chinese enterprises have made great progress, in the process of developing the international market, there are many kinds of problems, such as lack of competitive advantages, inadequate equipment and lack of talents. Therefore, enterprises need to take various effective measures to improve their market development ability from the perspectives of improving their comprehensive strength, expanding their international market share, paying attention to personnel training and improving their management level.展开更多
With the continuous reform of the new curriculum content standards and the implementation of various aspects, high school English reading classroom teaching has also received extensive attention. Effective reading cla...With the continuous reform of the new curriculum content standards and the implementation of various aspects, high school English reading classroom teaching has also received extensive attention. Effective reading classroom teaching can help students accumulate more English professional knowledge, cultivate students English language sense, improve students understanding ability and improve students comprehensive English level. Therefore, high school teachers should update their education awareness in time, take into account the current teaching situation of high school English reading teaching, adopt effective classroom teaching methods of reading articles, improve the teaching efficiency of reading articles, enhance students personal interests, shape students high-quality reading habits and abilities, and enable classroom teaching of reading articles to better integrate into the new curriculum content standards. Therefore, this paper aims to analyze the existing problems in senior high school English reading teaching and put forward effective optimization strategies.展开更多
In recent years, the vigorous development of vocational education has trained a large number of talents needed for the sustainable development of social economy. All kinds of vocational education schools are based on ...In recent years, the vigorous development of vocational education has trained a large number of talents needed for the sustainable development of social economy. All kinds of vocational education schools are based on the actual situation of the school and the core needs of social enterprises to improve the curriculum teaching system, which greatly improves the efficiency of talent training. Some teachers bring apprenticeship into the teaching process of electrical and electronic practical training courses, and have obtained positive application results. It reflects the advantages of the integration of industry and education and the combination of work and study. In this paper, will focus on how to improve the efficiency of apprenticeship in electrical and electronic training course teaching practice application, and put forward specific strategies.展开更多
An accounting firm is a service organization which mainly provides relevant financial and accounting management services for enterprises. Accounting firms play a very important role. They can effectively supervise soc...An accounting firm is a service organization which mainly provides relevant financial and accounting management services for enterprises. Accounting firms play a very important role. They can effectively supervise social and economic activities, evaluate the behavior of enterprises in operation and management, and identify the financial status of enterprises. Therefore, it is very important to effectively improve the financial accounting management level of accounting firms. Based on this, this paper first briefly analyzes the existing financial and accounting management problems of accounting affairs, and then expounds the effective strategies to improve the financial and accounting management level of accounting firms from three aspects, so as to provide reference for relevant people.展开更多
At present, the development of rural economy is an important part to promote the realization of a new socialist countryside. Doing a good job in the development of rural economy is conducive to the realization of the ...At present, the development of rural economy is an important part to promote the realization of a new socialist countryside. Doing a good job in the development of rural economy is conducive to the realization of the rural collective members' all-round entry into a well-off society. There are many problems in the process of rural economic development, which cause the rural economy to stagnate. Therefore, starting from how to do a good job in rural economic development, the article analyzes the problems existing in the development of rural economic management and puts forward corresponding decisions, which are now as follows.展开更多
Under the background of the new era, the public has put forward higher requirements for junior high school geography teaching. On the one hand, teachers need to reduce students' learning pressure and schoolwork bu...Under the background of the new era, the public has put forward higher requirements for junior high school geography teaching. On the one hand, teachers need to reduce students' learning pressure and schoolwork burden. On the other hand, they also need to actively construct an efficient classroom, so it is very critical to mobilize students' interest in learning. Teachers need to give students more opportunities to learn independently, stimulate students' learning initiative, so that students can truly learn by doing and play in learning, and then find their own geography learning strategies and skills. In this regard, based on the actual conditions of junior high school geography education and teaching, the relevant strategies and requirements to reduce the burden and increase the efficiency of the subject are understood, which will provide a certain reference for the promotion of junior high school geography teaching reform.展开更多
The next-generation smart grid for the storage and delivery of renewable energy urgently needs to develop a low-cost and rechargeable energy storage technology beyond lithium-ion batteries(LIBs).Owing to the abundance...The next-generation smart grid for the storage and delivery of renewable energy urgently needs to develop a low-cost and rechargeable energy storage technology beyond lithium-ion batteries(LIBs).Owing to the abundance of potassium(K) resources and the similar electrochemical performance to that of LIBs,potassium-ion batteries(PIBs) have been attracted considerable interest in recent years,and significant progress has been achieved concerning the discovery of high-performance electrode materials for PIBs.This review especially summarizes the latest research progress regarding anode materials for PIBs,including carbon materials,organic materials,alloys,metal-based compounds,and other new types of compounds.The reversible K-ion storage principle and the electrochemical performance(i.e.,capacity,potential,rate capability,and cyclability) of these developed anode materials are summarized.Furthermore,the challenges and the corresponding effective strategies to enhance the battery performance of the anode materials are highlighted.Finally,prospects of the future development of high-performance anode materials for PIBs are discussed.展开更多
基金supported by the National Natural Science Foundation of China(grant numbers U23B20171 and 52074023)the Natural Science Foundation of Beijing Municipality(grant number 2222062).
文摘Silicon suboxide(SiO_(x))is one of the most attractive candidates for anode materials for high-energy-density lithium-ion batteries due to its high specific capacity and its relatively lower volume expansion than that of Si.However,its low initial Coulombic efficiency(ICE)seriously affects its practical applications.In this work,we demonstrate a scalable and effective strategy to enable a high ICE of the SiO_(x) electrode through a MnO-assisted disproportionation reaction.The obtained Mn_(2)SiO_(4)-Si-SiO_(x)@C(MSS@C)material shows a reduced lithium irreversible consumption in the first cycle.The Mn_(2)SiO_(4) phase can store lithium through a conversion reaction with a smaller volume change(33%)than SiO_(x),which helps to maintain the structural stability of MSS@C during cycling.Meanwhile,the metallic Mn nanoparticles generated from Mn_(2)SiO_(4) during the lithiation process facilitate electron conduction,thus improving the electrode reaction kinetics.Owing to the synergetic effects,the MSS@C material exhibits a higher ICE(79.51%)compared to 60.91%of pure SiO_(x),and a superior cyclic performance(832 mAh g^(−1) at 0.5 A g^(−1) after 350 cycles with a capacity retention of 90.4%).This work offers a new approach to increase the ICE while improving the electrode reaction kinetics and cycling stability of SiO_(x)-based materials.
文摘The ecological civilization in the new age is one important aspect for undergraduates.We must enhance the concept of their civilization and improve the quality of civilization.Carrying out ecological civilization education in colleges and universities has a practical significance for enriching the contents of ideological and political education to realize their all-round development.Nowadays,some undergraduates lack awareness of ecological civilization and ignore its importance.For this reason,undergraduates need to pay attention to ecological civilization and improve their own ecological civilization literacy to promote the all-round development in qualities in the new age.This paper mainly analyzes the current problems in undergraduates’ecological civilization education and explores effective strategies to solve the current problems in undergraduates’ecological civilization education.The strategies include integrating ecological civilization resources,innovating methods of ecological civilization,strengthening ecological educator team construction,embodying ecological culture in campus construction and creating the atmosphere,emphasizing innovative practices for ecological civilization,strengthening publicity of social-ecological civilization,and attaching importance to family education of ecological civilization.
文摘As one of the core courses for computer-related majors,the Python programming course has become increasingly important in the era of artificial intelligence.It aims to help students develop good computer thinking and improve their abilities in programming and data analysis.The application of artificial intelligence technology in the teaching of Python programming courses is of great significance for optimizing the allocation of teaching resources,enriching students’learning experience,and significantly improving teaching quality.Based on this,this paper first briefly expounds on the importance of applying artificial intelligence technology in the teaching of Python programming courses.On this basis,it focuses on exploring effective strategies for the teaching reform of Python programming courses based on artificial intelligence technology,hoping to provide new ideas for the teaching of Python programming courses and contribute to cultivating more Python programming talents with artificial intelligence literacy.
文摘Secondary vocational schools as the training of professional personnel of the main position, should be combined with the needs of the development of the times, continuous innovation of teaching ideas, make up for the deficiency of traditional electronic courses, with the new education model to drive the modernization of teaching ideas, the students into a strong professional ability of electronic technical personnel. Therefore, this paper mainly through the analysis of the shortcomings of electronic specialty and its improvement measures, and for the optimization of classroom teaching model to provide some reasonable suggestions, hoping to effectively promote the good development of electronic specialty.
文摘In recent years, people's economic income level has increased significantly, and higher requirements are put forward for the construction quality of construction projects. The quality of construction projects is directly related to the construction life and benefit creation, and affects the development of the construction industry.Therefore, as a participant in the construction project, we must pay attention to the project quality management ideologically and carry out quality management activities based on appropriate methods to ensure the smooth construction and completion of the construction project.Next, the article discusses the effective strategies to improve the construction quality control of construction engineering.
文摘With the deepening of the new curriculum reform of Chinese in primary schools, teachers need to adjust and optimize Chinese homework in primary schools. Traditional homework design is mainly based on copying, which is a large number, time-consuming, laborious and mechanized homework mode, and it is difficult to fully mobilize and stimulate students autonomy and interest in learning. Therefore, teachers need to optimize the content of Chinese homework from the perspective of students to improve students practical ability.
文摘With the rapid development of the new curriculum reform, in the current higher education, teachers attach great importance to shaping and improving students core literacy. In history classroom teaching, teachers should keep up with the development of the times, change the relatively backward teaching methods and use diversified teaching methods to further promote teaching innovation and reform. Based on the core literacy, this paper analyzes the shortcomings of history classroom teaching in senior high schools. By discussing the effective measures of history classroom teaching in senior high school, this paper is committed to promoting the development of students core literacy and efficiently promoting students enthusiasm for history learning.
文摘As we all know, the construction project from the implementation to the completion will go through a number of processes, involving different stages of construction, of which the decoration stage is a very important link. Decoration is an important process of complementing architectural details, realizing functions and presenting styles. At the same time, a large number of materials and resources will be used in architectural decoration. The current construction of a green ecological society under the development requirements of all walks of life should actively carry out their social responsibilities, the concept of ecological implementation of specific production links to go. In architectural decoration design, effective design strategies are used to put the ecological concept into place, thus reducing the burden on the environment.
文摘In order to help students preliminarily perceive the importance of reading, teachers must pay attention to students' reading, and through a certain amount of reading the whole book, provide students with better reading guidance, in order to improve students' reading ability. For single reading, students often can not feel the charm of the text, so using a certain way to let students establish a reading perception of the whole book, can help students improve their reading level, but also let students gradually perceive the reading effect, so as to establish a stronger emotional resonance.
文摘Effective learning is not merely a matter of an individual having a high IQ. What appears to be important is the learners＇ ability to respond to the particular learning situation and to manage their learning in an appropriate way. Studies of successful and unsuccessful learners show that people who succeed in learning have developed a range of strategies from which they are able to select those that are most appropriate for a particular problem, to adapt them flexibly for the needs of the specific situation, and to monitor their level of success. Based on the assumption that integrating strategies into foreign language teaching is both valuable and achievable and that their accomplishment can enhance independent foreign language learning, this paper offered a model of strategy-based instruction, which includes both explicit and implicit integration of strategies into classroom instruction.
基金the Research on“Double Effect Teaching Practice”of Vocal Stage Art Practice Course(Number:2021JG63).
文摘Music performance major requires students to have rich experience in professional stage practice.Therefore,in the process of promoting the teaching of music performance,the effective connection between the teaching of professional music performance skills and professional stage experience practice needs to be emphasized.With professional experience in teaching practice,this article analyzes the course teaching and stage practice of music performance,suggesting several problems in the current teaching methods,and from different angles,this article suggests countermeasures to effectively dock professional skills teaching with stage practice in hope to provide practical reference for relevant professionals so as to better cultivate and improve students’comprehensive application ability in music performance.
基金Supported by the Natural Science Foundation of Zhejiang Province under Grant No LY15E010002the National Natural Science Foundation of China under Grant No 51671139
文摘FePt nanoparticles in mesoporous silica are fabricated by a simple stepwise synthesis strategy.A pre-annealing temperature-dependent coercivity-ageing effect in FePt nanoparticles is observed at room temperature.For facecentered cubic（fcc）structured FePt nanoparticles,the ageing effect is sensitive to the pre-annealing temperature,especially when the temperature is close to the phase-transition.The special magnetic behavior of FePt nanoparticles reveals that the physical properties gradually change between fee and face-centered tetragonal structures,and will deepen our understanding of the mechanism of such magnetism in FePt nanoparticles.
文摘Aiming at the problem of enterprises' ability to develop international market, this research combines the development status of Chinese enterprises, firstly makes a comprehensive analysis of the existing problems in the process of international market development, and on this basis, puts forward effective strategies to improve the ability of international market development, laying a foundation for further development of enterprises. Research shows that although Chinese enterprises have made great progress, in the process of developing the international market, there are many kinds of problems, such as lack of competitive advantages, inadequate equipment and lack of talents. Therefore, enterprises need to take various effective measures to improve their market development ability from the perspectives of improving their comprehensive strength, expanding their international market share, paying attention to personnel training and improving their management level.
文摘With the continuous reform of the new curriculum content standards and the implementation of various aspects, high school English reading classroom teaching has also received extensive attention. Effective reading classroom teaching can help students accumulate more English professional knowledge, cultivate students English language sense, improve students understanding ability and improve students comprehensive English level. Therefore, high school teachers should update their education awareness in time, take into account the current teaching situation of high school English reading teaching, adopt effective classroom teaching methods of reading articles, improve the teaching efficiency of reading articles, enhance students personal interests, shape students high-quality reading habits and abilities, and enable classroom teaching of reading articles to better integrate into the new curriculum content standards. Therefore, this paper aims to analyze the existing problems in senior high school English reading teaching and put forward effective optimization strategies.
文摘In recent years, the vigorous development of vocational education has trained a large number of talents needed for the sustainable development of social economy. All kinds of vocational education schools are based on the actual situation of the school and the core needs of social enterprises to improve the curriculum teaching system, which greatly improves the efficiency of talent training. Some teachers bring apprenticeship into the teaching process of electrical and electronic practical training courses, and have obtained positive application results. It reflects the advantages of the integration of industry and education and the combination of work and study. In this paper, will focus on how to improve the efficiency of apprenticeship in electrical and electronic training course teaching practice application, and put forward specific strategies.
文摘An accounting firm is a service organization which mainly provides relevant financial and accounting management services for enterprises. Accounting firms play a very important role. They can effectively supervise social and economic activities, evaluate the behavior of enterprises in operation and management, and identify the financial status of enterprises. Therefore, it is very important to effectively improve the financial accounting management level of accounting firms. Based on this, this paper first briefly analyzes the existing financial and accounting management problems of accounting affairs, and then expounds the effective strategies to improve the financial and accounting management level of accounting firms from three aspects, so as to provide reference for relevant people.
文摘At present, the development of rural economy is an important part to promote the realization of a new socialist countryside. Doing a good job in the development of rural economy is conducive to the realization of the rural collective members' all-round entry into a well-off society. There are many problems in the process of rural economic development, which cause the rural economy to stagnate. Therefore, starting from how to do a good job in rural economic development, the article analyzes the problems existing in the development of rural economic management and puts forward corresponding decisions, which are now as follows.
文摘Under the background of the new era, the public has put forward higher requirements for junior high school geography teaching. On the one hand, teachers need to reduce students' learning pressure and schoolwork burden. On the other hand, they also need to actively construct an efficient classroom, so it is very critical to mobilize students' interest in learning. Teachers need to give students more opportunities to learn independently, stimulate students' learning initiative, so that students can truly learn by doing and play in learning, and then find their own geography learning strategies and skills. In this regard, based on the actual conditions of junior high school geography education and teaching, the relevant strategies and requirements to reduce the burden and increase the efficiency of the subject are understood, which will provide a certain reference for the promotion of junior high school geography teaching reform.
基金financially supported by the German Research Foundation(DFG:LE2249/5-1)sponsored by China Scholarship Council(CSC)
文摘The next-generation smart grid for the storage and delivery of renewable energy urgently needs to develop a low-cost and rechargeable energy storage technology beyond lithium-ion batteries(LIBs).Owing to the abundance of potassium(K) resources and the similar electrochemical performance to that of LIBs,potassium-ion batteries(PIBs) have been attracted considerable interest in recent years,and significant progress has been achieved concerning the discovery of high-performance electrode materials for PIBs.This review especially summarizes the latest research progress regarding anode materials for PIBs,including carbon materials,organic materials,alloys,metal-based compounds,and other new types of compounds.The reversible K-ion storage principle and the electrochemical performance(i.e.,capacity,potential,rate capability,and cyclability) of these developed anode materials are summarized.Furthermore,the challenges and the corresponding effective strategies to enhance the battery performance of the anode materials are highlighted.Finally,prospects of the future development of high-performance anode materials for PIBs are discussed.
