Invention Grant
- Patent Title: Separator for use in non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery
- Patent Title (中): 用于非水电解质二次电池和非水电解质二次电池的分离器
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Application No.: US12091666Application Date: 2007-04-20
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Publication No.: US08404377B2Publication Date: 2013-03-26
- Inventor: Shinji Kasamatsu , Mikinari Shimada , Yasunori Nishida
- Applicant: Shinji Kasamatsu , Mikinari Shimada , Yasunori Nishida
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2006-126211 20060428
- International Application: PCT/JP2007/058613 WO 20070420
- International Announcement: WO2007/125827 WO 20071108
- Main IPC: H01M2/14
- IPC: H01M2/14
Abstract:
A separator for use in a non-aqueous electrolyte secondary battery including a first porous layer (layer A) having a shutdown function which becomes substantially a non-porous layer at a high temperature, and a second porous layer (layer B) including an aramid resin and an inorganic material, wherein a ratio (TA/TB) of a thickness (TA) of the layer A relative to a thickness (TB) of the layer B is 2.5 or more and 13 or less.
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