Carbonized Eggshell Membrane as a Natural Polysulfide Reservoir for Highly Reversible Li-S Batteries

被引:372
作者
Chung, Sheng-Heng [1 ,2 ]
Manthiram, Arumugam [1 ,2 ]
机构
[1] Univ Texas Austin, Electrochem Energy Lab, Austin, TX 78712 USA
[2] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA
关键词
LITHIUM-SULFUR BATTERIES; CATHODE; PERFORMANCE;
D O I
10.1002/adma.201304365
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Carbonized sucrose-coated eggshell membranes (CSEMs) consisting of natural micropores function well as a polysulfide reservoir in Li/dissolved polysulfide cells. The bottom CSEM current collector encapsulates the active material, while the upper CSEM inhibitor intercepts the migrating polysulfides. This design with CSEM allows the dissolved polysulfides to be localized and the electrochemical reactions within the cathode region to be stabilized, resulting in high discharge capacity, long-term cycle stability, and high sulfur loading.
引用
收藏
页码:1360 / 1365
页数:6
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