Lithium metal batteries(LMBs)are regarded as highly promising high-energy-density battery technology,primarily due to the ultrahigh theoretical capacity(3860 mAh g-1)and low electrochemical redox potential(-3.04 V vs....Lithium metal batteries(LMBs)are regarded as highly promising high-energy-density battery technology,primarily due to the ultrahigh theoretical capacity(3860 mAh g-1)and low electrochemical redox potential(-3.04 V vs.SHE)of the lithium metal anode.Nevertheless,the inherent flammability of conventional electrolytes poses significant safety challenges,inevitably limiting the practical deployment of LMBs.Triethyl phosphate(TEP)-based electrolytes,which endow the merits of low cost,exceptional thermal stability,and intrinsic nonflammability,have attracted considerable attention.In this review,we first introduce the key challenges associated with TEP-based electrolytes in LMBs.We then provide a comprehensive overview of recent progress in the development of TEP-based electrolytes in LMBs.Furthermore,we discuss modification strategies and propose future research directions for optimizing TEP-based electrolytes in LMBs.This review aims to provide valuable insights and guidance for the design of advanced TEP-based electrolytes,thereby facilitating the development of stable and safe LMBs.展开更多
硅基材料可用于制备高比容量锂离子电池负极,但其在高电压和高温环境下易发生副反应,而通过在电解液中加入功能添加剂,则可有效缓解上述问题。本文通过在电解液中引入硼酸三乙酯(TEB),结果表明可有效改善4.4 V LiNi_(0.6)Co_(0.1)Mn_(0....硅基材料可用于制备高比容量锂离子电池负极,但其在高电压和高温环境下易发生副反应,而通过在电解液中加入功能添加剂,则可有效缓解上述问题。本文通过在电解液中引入硼酸三乙酯(TEB),结果表明可有效改善4.4 V LiNi_(0.6)Co_(0.1)Mn_(0.3)|石墨@SiO软包电池的问题。与无添加剂电解液电池相比,TEB有效抑制了高温存储产气(产气量减少67.1%)和提高循环性能(25℃,从62.33%提升至90.78%)电池的低温放电容量保持率也提升了2.4%(0.5 C)和8.5%(1 C)。由于TEB加入后,可显著提升高电压LiNi_(0.6)Co_(0.1)Mn_(0.3)|石墨@SiO软包电池的宽温域工作能力,表明它是一种具有使用价值的电解液功能添加剂。展开更多
Triethyl Phosphite is the intermediate of producing nervous toxin of organic phosphate,which is involved in the chemicals of schedule 3. in Convention On The Prohibition Of The Development,Production,Stockpiling And U...Triethyl Phosphite is the intermediate of producing nervous toxin of organic phosphate,which is involved in the chemicals of schedule 3. in Convention On The Prohibition Of The Development,Production,Stockpiling And Use Of Chemical Weapons And On Their Destruction.A method for the determination of triethyl phosphate was established by GC-MS/SIM.Average recovery was 96.3%-111.5% with linear range between concentration and peak area varying from 0.546-10.928 mg/L and the detection limits were 0.011 ng.展开更多
基金supported by the National Natural Science Foundation of China(52202286,22309002,52250710680,52171217)the Key Research and Development Program of Zhejiang Province(2023C01232,2024C01057)+3 种基金the Natural Science Foundation of Zhejiang Province(LY24B030006)the Science and Technology Plan Project of Wenzhou Municipality(ZG2024055,ZG2022032)the Wenzhou Association for Science and Technology Innovation Program(NLTS2024-013)the Basic Research Project of Wenzhou City(G20220016)。
文摘Lithium metal batteries(LMBs)are regarded as highly promising high-energy-density battery technology,primarily due to the ultrahigh theoretical capacity(3860 mAh g-1)and low electrochemical redox potential(-3.04 V vs.SHE)of the lithium metal anode.Nevertheless,the inherent flammability of conventional electrolytes poses significant safety challenges,inevitably limiting the practical deployment of LMBs.Triethyl phosphate(TEP)-based electrolytes,which endow the merits of low cost,exceptional thermal stability,and intrinsic nonflammability,have attracted considerable attention.In this review,we first introduce the key challenges associated with TEP-based electrolytes in LMBs.We then provide a comprehensive overview of recent progress in the development of TEP-based electrolytes in LMBs.Furthermore,we discuss modification strategies and propose future research directions for optimizing TEP-based electrolytes in LMBs.This review aims to provide valuable insights and guidance for the design of advanced TEP-based electrolytes,thereby facilitating the development of stable and safe LMBs.
文摘硅基材料可用于制备高比容量锂离子电池负极,但其在高电压和高温环境下易发生副反应,而通过在电解液中加入功能添加剂,则可有效缓解上述问题。本文通过在电解液中引入硼酸三乙酯(TEB),结果表明可有效改善4.4 V LiNi_(0.6)Co_(0.1)Mn_(0.3)|石墨@SiO软包电池的问题。与无添加剂电解液电池相比,TEB有效抑制了高温存储产气(产气量减少67.1%)和提高循环性能(25℃,从62.33%提升至90.78%)电池的低温放电容量保持率也提升了2.4%(0.5 C)和8.5%(1 C)。由于TEB加入后,可显著提升高电压LiNi_(0.6)Co_(0.1)Mn_(0.3)|石墨@SiO软包电池的宽温域工作能力,表明它是一种具有使用价值的电解液功能添加剂。
文摘Triethyl Phosphite is the intermediate of producing nervous toxin of organic phosphate,which is involved in the chemicals of schedule 3. in Convention On The Prohibition Of The Development,Production,Stockpiling And Use Of Chemical Weapons And On Their Destruction.A method for the determination of triethyl phosphate was established by GC-MS/SIM.Average recovery was 96.3%-111.5% with linear range between concentration and peak area varying from 0.546-10.928 mg/L and the detection limits were 0.011 ng.
