Aluminum/sulfur battery discharge in the high current domain

被引:21
|
作者
Licht, S
机构
[1] Department of Chemistry, Technion-Israel Inst. of Technology
关键词
D O I
10.1149/1.1837700
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We previously introduced an aqueous aluminum/sulfur battery with separate anode and cathode compartments (separated by an ion-selective membrane). The high-capacity cathode compartment contained aqueous polysulfide electrolyte, while the anode compartment contained concentrated alkali, but no polysulfide, electrolyte to prevent chemical attack of the aluminum by solution-phase zero-valent sulfur. We report here that concentrated dissolved sulfur, rather than attacking the aluminum anode, permits facile efficient aluminum oxidation. Therefore, a cell configuration without a resistive limiting membrane is feasible. An aluminum/sulfur battery is demonstrated to be capable of sustained current densities of 1 A/cm(2). High efficiency and current density are important for electric vehicle applications.
引用
收藏
页码:L133 / L136
页数:4
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