Invention Grant
- Patent Title: Electric storage device
- Patent Title (中): 蓄电装置
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Application No.: US14505619Application Date: 2014-10-03
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Publication No.: US09449764B2Publication Date: 2016-09-20
- Inventor: Takeshi Sasaki , Yoshihiro Katayama
- Applicant: GS Yuasa International Ltd.
- Applicant Address: JP Kyoto-shi, Kyoto
- Assignee: GS YUASA INTERNATIONAL LTD.
- Current Assignee: GS YUASA INTERNATIONAL LTD.
- Current Assignee Address: JP Kyoto-shi, Kyoto
- Agency: McGinn IP Law Group PLLC
- Priority: JP2011-008661 20110119
- Main IPC: H01G11/26
- IPC: H01G11/26 ; H01M4/96 ; H01M4/04 ; H01M4/133 ; H01M4/1393 ; H01M4/583 ; H01M10/0525 ; H01G11/36 ; H01G11/56 ; H01M4/587 ; H01M4/02

Abstract:
An electric storage device includes a negative electrode, a positive electrode, and a separator interposed between the negative electrode and the positive electrode, the negative electrode including a negative electrode layer including an active material including an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal, and a binder. The negative electrode layer includes a plurality of pores, and a ratio S1/S2 of a specific surface area (S1) of micropores having a pore diameter of 1 nm or more and 3 nm or less in the pores to a specific surface area (S2) of mesopores having a pore diameter of 20 nm or more and 100 nm or less therein is 0.3 or more and 0.9 or less.
Public/Granted literature
- US20150024274A1 ELECTRIC STORAGE DEVICE Public/Granted day:2015-01-22
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