Structure-Related Electrochemistry of Sulfur-Poly(acrylonitrile) Composite Cathode Materials for Rechargeable Lithium Batteries

被引:337
作者
Fanous, Jean [1 ]
Wegner, Marcus [1 ]
Grimminger, Jens [1 ]
Andresen, Anne [1 ]
Buchmeiser, Michael R. [2 ]
机构
[1] Robert Bosch GmbH, Corp Sector Res & Adv Engn CR ARC1, D-70049 Stuttgart, Germany
[2] Univ Stuttgart, Inst Polymer Chem, D-70569 Stuttgart, Germany
关键词
cathode materials; polymer-sulfur composite; rechargeable lithium battery; conducting polymer; poly(acrylonitrile); POLYMERS; STORAGE;
D O I
10.1021/cm202467u
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structure of sulfur-poly(acrylonitrile)based Li-sulfur batteries is elucidated and correlated with the electrochemical performance of such devices. Apart from the poly(acrylonitrile)-derived backbone, thioamide as well as poly(sulfide) structures are proposed. Furthermore, the intermediary formation of S-8 during cycling and the role of the electrolyte in its reintegration during charging into are addressed. In summary, a comprehensive picture of the chemistry and electrochemistry of Li-sulfur batteries is presented.
引用
收藏
页码:5024 / 5028
页数:5
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