Title:
POSITIVE ELECTRODE MATERIAL AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/205821
Kind Code:
A1
Abstract:
A positive electrode material 1000 according to the present disclosure includes a positive electrode active material 110 and a coating layer 111 that includes a first solid electrolyte and covers at least a part of the surface of the positive electrode active material 110. The positive electrode active material 110 and the coating layer 111 constitute a coating active material 130, and where the pore volume of the positive electrode active material 110 is represented by Vα, the pore volume of the coating active material 130 is represented by Vβ, the specific surface area of the positive electrode active material 110 is represented by Sα, and the specific surface area of the coating active material 130 is represented by Sβ, at least one selected from the group consisting of 0.20 < Vβ/Vα < 0.88 and 0.81 < Sβ/Sα < 0.97 is satisfied.
Inventors:
HASHIMOTO KAZUYA
SASAKI IZURU
YABE HIROKI
SASAKI IZURU
YABE HIROKI
Application Number:
PCT/JP2021/010468
Publication Date:
October 14, 2021
Filing Date:
March 15, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C01B25/14; C01F17/00; C01G53/00; H01M4/13; H01M4/36; H01M4/505; H01M4/525; H01M4/62; H01M10/0562
Domestic Patent References:
| WO2019135322A1 | 2019-07-11 | |||
| WO2019146236A1 | 2019-08-01 | |||
| WO2019146308A1 | 2019-08-01 | |||
| WO2018025582A1 | 2018-02-08 |
Foreign References:
| JP2018137222A | 2018-08-30 |
Other References:
JOURNAL OF POWER SOURCES, vol. 159, 2006, pages 193 - 199
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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