Invention Grant
- Patent Title: Nonaqueous electrolyte battery
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Application No.: US14476026Application Date: 2014-09-03
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Publication No.: US09780378B2Publication Date: 2017-10-03
- Inventor: Dai Yamamoto , Yuki Watanabe , Hidesato Saruwatari , Kazuya Kuriyama , Hideki Satake
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Minato-ku
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-188861 20130911; JP2014-172756 20140827
- Main IPC: H01M4/62
- IPC: H01M4/62 ; H01M4/485 ; H01M10/0525 ; H01M10/0568 ; H01M10/0569 ; H01M4/131 ; H01M4/1391 ; H01M4/36 ; H01M10/44

Abstract:
According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 μmol to 40 μmol per g of a weight of the negative electrode material layer.
Public/Granted literature
- US20150072249A1 NONAQUEOUS ELECTROLYTE BATTERY Public/Granted day:2015-03-12
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