Invention Grant
- Patent Title: Nonaqueous electrolyte secondary cell
- Patent Title (中): 非水电解质二次电池
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Application No.: US11836038Application Date: 2007-08-08
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Publication No.: US07955731B2Publication Date: 2011-06-07
- Inventor: Tomoyuki Nakamura , Yuji Uchida , Takehiko Suwa , Hirotaka Sakai , Takahiro Endo
- Applicant: Tomoyuki Nakamura , Yuji Uchida , Takehiko Suwa , Hirotaka Sakai , Takahiro Endo
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2006-221249 20060814; JP2006-221311 20060814; JP2007-019525 20070130; JP2007-019534 20070130
- Main IPC: H01M6/04
- IPC: H01M6/04

Abstract:
A nonaqueous electrolyte secondary cell includes an electrode body including a positive electrode, a negative electrode, and a separator, the positive electrode and the negative electrode being arranged to oppose each other with the separator therebetween, and being rolled or stacked; a nonaqueous electrolyte solution; and an exterior package for accommodating the electrode body and the nonaqueous electrolyte solution. A polymeric support is provided between the separator and at least one of the positive electrode and the negative electrode, and the ratio (MO/MA) of the amount (MO) of the nonaqueous electrolyte solution present between the electrode body and the exterior package to the amount (MA) of the nonaqueous electrolyte solution present in the exterior package is 0.04 or less.
Public/Granted literature
- US20080138702A1 NONAQUEOUS ELECTROLYTE SECONDARY CELL Public/Granted day:2008-06-12
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