Title:
BATTERY AND PRODUCTION METHOD FOR BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/223582
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to provide a battery that has an appropriate balance of energy density and cycle characteristics. This production method for a battery involves depositing silicon on a negative electrode collector to produce a negative electrode, producing a laminate that includes, in order, the negative electrode, a solid electrolyte layer, and a positive electrode, and charging the laminate to precipitate lithium metal at the negative electrode. This battery comprises a positive electrode, a negative electrode, and a solid electrolyte layer that is between the positive electrode and the negative electrode. The positive electrode includes a positive electrode active material that contains lithium. The negative electrode includes a negative electrode active material that contains lithium metal and silicon. The ratio Ns/P of the charging capacity Ns of the silicon per unit area of the negative electrode to the charging capacity P per unit area of the positive electrode satisfies 0.3≤Ns/P≤0.96.
Inventors:
ITO SHUJI
MATSUMURA TADAAKI
MATSUMURA TADAAKI
Application Number:
PCT/JP2022/044225
Publication Date:
November 23, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/052; H01M4/134; H01M4/1395; H01M4/36; H01M4/38; H01M4/40; H01M10/0562; H01M10/0564; H01M10/058
Foreign References:
| JP2019121558A | 2019-07-22 | |||
| JP2010061864A | 2010-03-18 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
Download PDF:
Previous Patent: BATTERY
Next Patent: ELECTRODE FOR DISCHARGE SURFACE TREATMENT AND METHOD FOR PRODUCING SAME
Next Patent: ELECTRODE FOR DISCHARGE SURFACE TREATMENT AND METHOD FOR PRODUCING SAME