- 专利标题: Nonaqueous electrolyte secondary battery and battery pack
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申请号: US15691935申请日: 2017-08-31
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公开(公告)号: US10326141B2公开(公告)日: 2019-06-18
- 发明人: Yoshiyuki Isozaki , Norio Takami , Keigo Hoshina , Mitsuru Ishibashi , Yasunobu Yamashita
- 申请人: Kabushiki Kaisha Toshiba
- 申请人地址: JP Minato-ku
- 专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP Minato-ku
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 主分类号: H01M4/62
- IPC分类号: H01M4/62 ; H01M4/131 ; H01M4/48 ; B60L11/18 ; C09D5/24 ; C09D133/02 ; C09D133/20 ; H01M2/10 ; H01M2/20 ; H01M2/34 ; H01M10/0525
摘要:
According to one embodiment, a nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode mixed-material layer on the negative electrode current collector. The negative electrode mixed-material layer includes a titanium-containing metal oxide and a binder including an acrylic resin. The negative electrode satisfies α/β>1.36×10−2, where “α” is a peel strength (N/m) between the current collector and the negative electrode mixed-material layer, and “β” is a cutting strength (N/m) according to a surface and interfacial cutting method in the negative electrode mixed-material layer.
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