Electrolyte Regulation towards Stable Lithium-Metal Anodes in Lithium-Sulfur Batteries with Sulfurized Polyacrylonitrile Cathodes

被引:155
作者
Chen, Wei-Jing [1 ,2 ]
Li, Bo-Quan [1 ]
Zhao, Chang-Xin [1 ,3 ]
Zhao, Meng [3 ]
Yuan, Tong-Qi [2 ]
Sun, Run-Cang [4 ]
Huang, Jia-Qi [3 ]
Zhang, Qiang [1 ]
机构
[1] Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green Chem React Engn & Technol, Beijing 100084, Peoples R China
[2] Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China
[3] Beijing Inst Technol, Adv Res Inst Multidisciplinary Sci, Beijing 100081, Peoples R China
[4] Dalian Polytech Univ, Ctr Lignocellulose Sci & Engn, Dalian 116034, Peoples R China
基金
中国国家自然科学基金;
关键词
anodes; energy storage; electrolytes; lithium batteries; sulfurized polyacrylonitrile (SPAN); CARBONATE-BASED ELECTROLYTE; GEL POLYMER ELECTROLYTES; COMPOSITE CATHODE; LI-METAL; VINYLENE CARBONATE; ELECTROCHEMICAL PROPERTIES; COMMUNICATION-INFLUENCE; RECHARGEABLE BATTERIES; SOLVATION SHEATH; CYCLE LIFE;
D O I
10.1002/anie.201912701
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Lithium-sulfur (Li-S) batteries are highly regarded as the next-generation energy-storage devices because of their ultrahigh theoretical energy density of 2600 Wh kg(-1). Sulfurized polyacrylonitrile (SPAN) is considered a promising sulfur cathode to substitute carbon/sulfur (C/S) composites to afford higher Coulombic efficiency, improved cycling stability, and potential high-energy-density Li-SPAN batteries. However, the instability of the Li-metal anode threatens the performances of Li-SPAN batteries bringing limited lifespan and safety hazards. Li-metal can react with most kinds of electrolyte to generate a protective solid electrolyte interphase (SEI), electrolyte regulation is a widely accepted strategy to protect Li-metal anodes in rechargeable batteries. Herein, the basic principles and current challenges of Li-SPAN batteries are addressed. Recent advances on electrolyte regulation towards stable Li-metal anodes in Li-SPAN batteries are summarized to suggest design strategies of solvents, lithium salts, additives, and gel electrolyte. Finally, prospects for future electrolyte design and Li anode protection in Li-SPAN batteries are discussed.
引用
收藏
页码:10732 / 10745
页数:14
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