- Patent Title: Negative electrode active material, negative electrode and battery
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Application No.: US15115918Application Date: 2015-02-25
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Publication No.: US10270092B2Publication Date: 2019-04-23
- Inventor: Sukeyoshi Yamamoto , Tatsuo Nagata , Noriyuki Negi
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Clark & Brody
- Priority: JP2014-034262 20140225
- International Application: PCT/JP2015/000964 WO 20150225
- International Announcement: WO2015/129270 WO 20150903
- Main IPC: B22F1/00
- IPC: B22F1/00 ; B22F3/02 ; B22F7/04 ; B22F7/08 ; B22F9/00 ; B22F9/04 ; B22F9/08 ; C22C1/04 ; C22C9/00 ; C22C9/01 ; C22C9/02 ; C22C9/04 ; C22C9/06 ; C22C9/10 ; H01M4/02 ; H01M4/38 ; B32B15/00 ; C22C30/06 ; H01M10/052
Abstract:
Provided is a negative electrode active material that can improve the discharge capacity per volume and charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy phase. The alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding metal ions. The oxygen content of the negative electrode active material is not more than 5000 ppm in mass.
Public/Granted literature
- US20170170470A1 NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND BATTERY Public/Granted day:2017-06-15
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