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1. 发明申请

US20130216908A1 NONAQUEOUS ELECTROLYTE BATTERY 审中-公开
标题翻译：非电解电解质电池
公开(公告)号：US20130216908A1
公开(公告)日：2013-08-22
申请号：US13820813
申请日：2011-09-05
申请人： Tomonobu Tsujikawa , Masayasu Arakawa , Hirokazu Denma , Koji Hayashi
发明人： Tomonobu Tsujikawa , Masayasu Arakawa , Hirokazu Denma , Koji Hayashi
IPC分类号： H01M4/583
CPC分类号： H01M4/583 , H01M4/13 , H01M4/625 , H01M10/0587 , H01M10/4235
摘要： A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in a charge/discharge property at a time of battery use is provided. In a lithium-ion secondary battery 20, an electrode group 6 is accommodated in a battery container 7. The electrode group 6 is formed by winding a positive electrode plate and a negative electrode plate via a separator W5. The positive electrode plate has an aluminum foil W1 as a positive electrode collector. A positive electrode mixture layer W2 including a positive electrode active material is formed at both surfaces of the aluminum foil W1. A flame retardant layer W6 containing a flame retardant is formed at both surfaces of the positive electrode mixture layer W2. A carbon material which has electron conductivity and of which mass ratio to the flame retardant is 25% or less is contained in the flame retardant layer W6. The negative electrode plate has a rolled copper foil W3 as a negative electrode collector. A negative electrode mixture layer W4 including a negative electrode active material is formed at both surfaces of the rolled copper foil W3. Electron conductivity is secured at a battery use time, and the flame retardant decomposes at a battery abnormality time.
摘要翻译：提供一种能够在电池异常时确保安全性并限制电池使用时的充放电特性的下降的非水电解质电池。在锂离子二次电池20中，电极组6容纳在电池容器7中。电极组6通过隔膜W5卷绕正极板和负极板而形成。正极板具有铝箔W1作为正极集电体。在铝箔W1的两面形成有包含正极活性物质的正极合剂层W2。在正极合剂层W2的两面形成含有阻燃剂的阻燃层W6。在阻燃层W6中含有具有电子传导性且阻燃剂的质量比为25％以下的碳材料。负极板具有作为负极集电体的卷绕铜箔W3。在轧制铜箔W3的两面形成有负极活性物质的负极合剂层W4。在电池使用时间确保电子传导性，并且阻燃剂在电池异常时分解。

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