Title:
ALL-SOLID-STATE BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/071221
Kind Code:
A1
Abstract:
This all-solid-state battery (100) comprises a positive electrode layer (20), a solid electrolyte layer (10), and a negative electrode layer (30). A negative electrode mixture (34) of the negative electrode layer (30) includes one or both of a negative electrode active material (34A) and a carbon material (34D), a first phase (34B) that contacts at least a portion of the negative electrode active material (34A) and the carbon material (34D), and a second phase (34C) that contacts at least a portion of the first phase (34B). The first phase (34B) and the second phase (34C) each include an Li element and an X element that is one halogen element selected from the group consisting of F, Cl, Br, and I. The X element concentration in the first phase (34B) is higher than the X element concentration in the solid electrolyte layer (10), and the X element concentration in the second phase (34C) is lower than the X element concentration in the first phase (34B) and the X element concentration in the solid electrolyte layer (10).
Inventors:
KATO HARUNA (JP)
SUZUKI HISASHI (JP)
NOJIMA AKINOBU (JP)
KURIHARA MASATO (JP)
SUZUKI HISASHI (JP)
NOJIMA AKINOBU (JP)
KURIHARA MASATO (JP)
Application Number:
PCT/JP2023/035203
Publication Date:
April 04, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01M10/052; H01M4/13; H01M4/62; H01M10/0562
Domestic Patent References:
| WO2019146295A1 | 2019-08-01 | |||
| WO2019146308A1 | 2019-08-01 |
Foreign References:
| JP2022110517A | 2022-07-29 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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