Invention Grant
- Patent Title: Battery
- Patent Title (中): 电池
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Application No.: US12681709Application Date: 2009-06-01
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Publication No.: US08389153B2Publication Date: 2013-03-05
- Inventor: Masato Fujikawa , Tomohiko Yokoyama
- Applicant: Masato Fujikawa , Tomohiko Yokoyama
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2008-150946 20080609; JP2008-150947 20080609
- International Application: PCT/JP2009/002424 WO 20090601
- International Announcement: WO2009/150791 WO 20091217
- Main IPC: H01M2/08
- IPC: H01M2/08 ; H01M2/02

Abstract:
A battery including: a battery case having a bottom, a side wall, and an upper opening; an electrode assembly; an electrolyte; and a sealing plate covering the upper opening of the battery case accommodating the electrode assembly and the electrolyte, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a gasket is interposed between an opening-edge portion of the battery case and the sealing plate, a first resistive layer is disposed between the opening-edge portion of the battery case and the gasket, or a second resistive layer is disposed between the sealing plate and the gasket. The first or second resistive layer contains a mixture of a particulate inorganic oxide and a binder. This configuration makes it possible to prevent a short circuit between the battery case and the sealing plate even when the gasket is broken.
Public/Granted literature
- US20100227217A1 BATTERY Public/Granted day:2010-09-09
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