High Energy Rechargeable Li-S Cells for EV Application. Status, Remaining Problems and Solutions

被引：157

作者：

Mikhaylik, Y. ^{[1
]}

Kovalev, I. ^{[1
]}

Schock, R. ^{[1
]}

Kumaresan, K. ^{[1
]}

Xu, J. ^{[1
]}

Affinito, J. ^{[1
]}

机构：

[1] Sion Power Corp, Tucson, AZ 85756 USA

来源：

BATTERY/ENERGY TECHNOLOGY (GENERAL) - 216TH ECS MEETING | 2010年 / 25卷 / 35期

关键词：

SULFUR BATTERIES; ELECTROLYTE;

D O I：

10.1149/1.3414001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The primary mechanisms limiting lithium sulfur (Li-S) cell cycle life and thermal stability are discussed. Two major cycle life limiting mechanisms are identified: development of rough surface morphology on the metallic lithium anode with cycling; and depletion of lithium and electrolyte components through chemical reaction. The approach taken here to mitigate these problems, by employing physical protection, including multi-functional membrane assemblies and non-isotropic pressure is presented. Sulfur utilization of 92%, at C/5 discharge rates, increased cycle life and elimination of thermal runaway in 300 mAh Li-S cells was achieved.

引用

页码：23 / 34

页数：12

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