Invention Grant
- Patent Title: Negative electrode material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery
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Application No.: US16497609Application Date: 2018-02-16
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Publication No.: US11271197B2Publication Date: 2022-03-08
- Inventor: Taisuke Asano , Yohei Uchiyama , Taisuke Yamamoto , Tatsuya Akira , Norihisa Yamamoto , Hiroshi Minami
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JPJP2017-066340 20170329
- International Application: PCT/JP2018/005423 WO 20180216
- International Announcement: WO2018/179969 WO 20181004
- Main IPC: H01B1/18
- IPC: H01B1/18 ; H01M4/36 ; H01M4/38 ; H01M4/48 ; H01M4/58 ; H01M10/0525 ; H01M4/02
Abstract:
Disclosed is a negative electrode material for a non-aqueous electrolyte secondary battery, including: a lithium silicate phase; silicon particles dispersed in the lithium silicate phase; and at least one element Me dispersed in the lithium silicate phase, and selected from the group consisting of a rare-earth element and an alkaline-earth metal. The composition of the lithium silicate phase is represented, for example, by the formula: Li2zSiO2+z, and satisfies 0
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