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2. 发明申请

US20140217992A1 SEPARATORS FOR LITHIUM-SULFUR BATTERIES 审中-公开
标题翻译：锂离子电池分离器
公开(公告)号：US20140217992A1
公开(公告)日：2014-08-07
申请号：US13760043
申请日：2013-02-05
申请人： Wen LI , Ping LIU , Jocelyn HICKS-GARNER
发明人： Wen LI , Ping LIU , Jocelyn HICKS-GARNER
IPC分类号： H01M2/16 , H02J7/00
CPC分类号： H01M2/1646 , H01M2/145 , H01M2/1686 , H01M10/052 , H01M10/44 , H02J7/00 , Y02T10/7011
摘要： This invention, in some variations, provides a separator for a lithium-sulfur battery, comprising a porous substrate that is permeable to lithium ions; and a lithium-ion-conducting metal oxide layer on the substrate, wherein the metal oxide layer includes deposits of sulfur that are intentionally introduced prior to battery operation. The deposits of sulfur may be derived from treatment of the metal oxide layer with one or more sulfur-containing precursors (e.g., lithium polysulfides) prior to operation of the lithium-sulfur battery. Other variations provide a method of charging a lithium-sulfur battery that includes the disclosed separator, the charging being accomplished by continuously applying a substantially constant voltage to the lithium-sulfur battery until the battery charging current is at or below a selected current.
摘要翻译：本发明在一些变型中提供了一种用于锂硫电池的隔板，其包括可渗透锂离子的多孔基底; 以及在所述基板上的锂离子传导金属氧化物层，其中所述金属氧化物层包括在电池操作之前有意引入的硫的沉积物。硫的沉积物可以来源于在操作锂硫电池之前用一种或多种含硫前体（例如多聚硫化锂）处理金属氧化物层。其他变形例提供了对包含所公开的隔板的锂硫电池进行充电的方法，该充电是通过对锂硫电池持续施加基本上恒定的电压直到电池充电电流等于或低于选定电流来实现的。

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