Invention Grant
- Patent Title: Charging method of non-aqueous electrolyte secondary battery, and charging system of non-aqueous electrolyte secondary battery
-
Application No.: US16975615Application Date: 2019-01-22
-
Publication No.: US11811255B2Publication Date: 2023-11-07
- Inventor: Masahiro Soga , Taisuke Yamamoto
- 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: WHDA, LLP
- Priority: JP 18035271 2018.02.28
- International Application: PCT/JP2019/001806 2019.01.22
- International Announcement: WO2019/167475A 2019.09.06
- Date entered country: 2020-08-25
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H01M4/36 ; H01M4/48 ; H01M4/587 ; H01M10/0525 ; H01M10/44 ; H01M10/48 ; H01M4/02
Abstract:
A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q(0.1≤x≤0.5), a battery capacity Q1st that satisfies the expression below is charged at a first fixed current value; and a high current charging step in which, after completion of the first charging step, charging is performed at a fixed current value higher than the first fixed current value.
0.38x+0.063−α≤Q1st/Q≤0.38x+0.063+α Expression:
0.38x+0.063−α≤Q1st/Q≤0.38x+0.063+α Expression:
Information query
