Aqueous zinc ion batteries(AZIBs)are promising energy storage devices.However,the formation of dendrites,hydrogen evolution,and corrosion reaction seriously affect their electrochemical performance.Herein,the synergis...Aqueous zinc ion batteries(AZIBs)are promising energy storage devices.However,the formation of dendrites,hydrogen evolution,and corrosion reaction seriously affect their electrochemical performance.Herein,the synergistic effect of ion-migration regulation and interfacial engineering has been confirmed as the potential strategy by kaolin functionalized glass fiber separator(KL-GF)to alleviate these problems.The rapid and orderly Zn^(2+)migration was achieved to improve the transfer kinetics and induced uniform zinc deposition by more zinc-philic sites of KL-GF.Based on the interfacial engineering,the side reactions were effectively mitigated and crystal planes were regulated through KL-GF.The hydrophilicity of KL alleviated the corrosion and hydrogen evolution.Importantly,a preferential orientation of Zn(002)crystal plane by KL-GF was induced to further realize dendrite-free deposition by density functional theory(DFT)and X-ray diffraction(XRD)characterization.Hence,the Zn|KL-GF|MnO_(2)cell maintained a high discharge capacity of 96.8 mAh/g at 2 A/g after 1000 cycles.This work can provide guidance enabling high-performance zinc anode for AZIBs.展开更多
The thermodynamic analysis of the reaction between the main phase in magnesium slag and NH_(4)Cl solutions was carried out,and the ions leaching behaviors of Ca,Mg,Fe,and Al in magnesium slag under room temperature an...The thermodynamic analysis of the reaction between the main phase in magnesium slag and NH_(4)Cl solutions was carried out,and the ions leaching behaviors of Ca,Mg,Fe,and Al in magnesium slag under room temperature and microwave conditions were compared.Meanwhile,the effects of parameters on the leaching rate of Ca and Mg were investigated under the microwave heating conditions.The experimental results show that,in 273.15-373.15 K,Ca_(2)SiO_(4),CaSiO_(3),Ca_(2)Fe_(2)O_(5),and Mg_(2)SiO_(4)might react with NH_(4)Cl solution,while MgSiO_(3),MgO,Fe_(2)O_(3),and Al_(2)O_(3)are difficult to be leached.The leaching rates of Ca and Mg are 70.29%and 24.64%,respectively,when the conditions are 300 W of microwave power,1:20 of solid-liquid ratio,400 mL of 2 mol/L NH_(4)Cl solutions,and 90 min of leaching time.In addition,in the non-isothermal stage,the leaching process of Ca is changed from chemical reaction control to diffusion control,and the leaching rate of Ca gradually increases.However,the leaching process of Mg is always controlled by chemical reaction,and the leaching rate of Mg remains unchanged after the reaction reached equilibrium.展开更多
Reliability evaluation of heterojunction photovoltaic modules,with an emphasis on damp-heat testing,serves as a critical prerequisite for guaranteeing long-term high-efficiency power output and supporting successful c...Reliability evaluation of heterojunction photovoltaic modules,with an emphasis on damp-heat testing,serves as a critical prerequisite for guaranteeing long-term high-efficiency power output and supporting successful commercial deployment.This paper discusses the degradation pathways and protective strategies for silicon heterojunction(SHJ)solar cells under the moisture exposure.Numerous damp-heat aging experiments have shown that environmental moisture infiltration significantly exacerbates the degradation kinetic process of SHJ solar cells,wherein water molecule driven ion migration proves particularly detrimental to the interfacial properties of the devices.At the module level,moisture ingress induces hydrolytic degradation of encapsulation materials,resulting in interfacial delamination,optical discoloration(yellowing),encapsulation failure,and electrode electrochemical corrosion.These effects contribute to a substantial decline in the power output of the module.In view of the aforementioned failure mechanisms,this paper comprehensively reviews the current mainstream solutions:optimization of the encapsulation structure,including the development of novel high-barrier encapsulation films and advanced edge sealing technologies to enhance module weatherability;innovative cell design,such as the introduction of front surface barrier coating and passivation film stacks to improve the intrinsic stability.This review highlights the critical role of enhancing material weatherability and reinforcing interfacial barriers,aiming to provide insights for developing cost-effective high-stability solutions to facilitate the large-scale application of photovoltaic technology across diverse environments.展开更多
基金supported by the National Natural Science Foundation of China(Nos.51872090,51772097,82204604)the Hebei Natural Science Fund for Distinguished Young Scholar(No.E2019209433)+1 种基金the Youth Talent Program of Hebei Provincial Education Department(No.BJ2018020)the Natural Science Foundation of Hebei Province(Nos.E2020209151,E2022209158,H2022209012)。
文摘Aqueous zinc ion batteries(AZIBs)are promising energy storage devices.However,the formation of dendrites,hydrogen evolution,and corrosion reaction seriously affect their electrochemical performance.Herein,the synergistic effect of ion-migration regulation and interfacial engineering has been confirmed as the potential strategy by kaolin functionalized glass fiber separator(KL-GF)to alleviate these problems.The rapid and orderly Zn^(2+)migration was achieved to improve the transfer kinetics and induced uniform zinc deposition by more zinc-philic sites of KL-GF.Based on the interfacial engineering,the side reactions were effectively mitigated and crystal planes were regulated through KL-GF.The hydrophilicity of KL alleviated the corrosion and hydrogen evolution.Importantly,a preferential orientation of Zn(002)crystal plane by KL-GF was induced to further realize dendrite-free deposition by density functional theory(DFT)and X-ray diffraction(XRD)characterization.Hence,the Zn|KL-GF|MnO_(2)cell maintained a high discharge capacity of 96.8 mAh/g at 2 A/g after 1000 cycles.This work can provide guidance enabling high-performance zinc anode for AZIBs.
基金Funded by the National Key Research and Development Program of China(No.2023YFC2908002)。
文摘The thermodynamic analysis of the reaction between the main phase in magnesium slag and NH_(4)Cl solutions was carried out,and the ions leaching behaviors of Ca,Mg,Fe,and Al in magnesium slag under room temperature and microwave conditions were compared.Meanwhile,the effects of parameters on the leaching rate of Ca and Mg were investigated under the microwave heating conditions.The experimental results show that,in 273.15-373.15 K,Ca_(2)SiO_(4),CaSiO_(3),Ca_(2)Fe_(2)O_(5),and Mg_(2)SiO_(4)might react with NH_(4)Cl solution,while MgSiO_(3),MgO,Fe_(2)O_(3),and Al_(2)O_(3)are difficult to be leached.The leaching rates of Ca and Mg are 70.29%and 24.64%,respectively,when the conditions are 300 W of microwave power,1:20 of solid-liquid ratio,400 mL of 2 mol/L NH_(4)Cl solutions,and 90 min of leaching time.In addition,in the non-isothermal stage,the leaching process of Ca is changed from chemical reaction control to diffusion control,and the leaching rate of Ca gradually increases.However,the leaching process of Mg is always controlled by chemical reaction,and the leaching rate of Mg remains unchanged after the reaction reached equilibrium.
基金National Key Research and Development Program of China,Grant/Award Number:2024YFB3813900National Natural Science Foundation of China,Grant/Award Numbers:T2322028,62474184+5 种基金the Key Research Project of Zhejiang Province,Grant/Award Number:2025C01142Sichuan Science and Technology Program,Grant/Award Number:2025YFHZ0332the CAS Project for Young Scientists in Basic Research,Grant/Award Number:YSBR-102the Talent Plan of Shanghai Branch,Chinese Academy of Sciences,Grant/Award Number:CASSHBQNPD-202-001Chengdu Science and Technology Program,Grant/Award Number:2025-GH02-00012-HZLeshan West Silicon Materials Photovoltaic New Energy Industry Technology Research Institute,Grant/Award Number:2024GYKF1。
文摘Reliability evaluation of heterojunction photovoltaic modules,with an emphasis on damp-heat testing,serves as a critical prerequisite for guaranteeing long-term high-efficiency power output and supporting successful commercial deployment.This paper discusses the degradation pathways and protective strategies for silicon heterojunction(SHJ)solar cells under the moisture exposure.Numerous damp-heat aging experiments have shown that environmental moisture infiltration significantly exacerbates the degradation kinetic process of SHJ solar cells,wherein water molecule driven ion migration proves particularly detrimental to the interfacial properties of the devices.At the module level,moisture ingress induces hydrolytic degradation of encapsulation materials,resulting in interfacial delamination,optical discoloration(yellowing),encapsulation failure,and electrode electrochemical corrosion.These effects contribute to a substantial decline in the power output of the module.In view of the aforementioned failure mechanisms,this paper comprehensively reviews the current mainstream solutions:optimization of the encapsulation structure,including the development of novel high-barrier encapsulation films and advanced edge sealing technologies to enhance module weatherability;innovative cell design,such as the introduction of front surface barrier coating and passivation film stacks to improve the intrinsic stability.This review highlights the critical role of enhancing material weatherability and reinforcing interfacial barriers,aiming to provide insights for developing cost-effective high-stability solutions to facilitate the large-scale application of photovoltaic technology across diverse environments.
