Title:
ELECTRODE FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/054096
Kind Code:
A1
Abstract:
An electrode for secondary batteries according to one embodiment of the present invention is provided with a core body and a mixture layer that is formed on the core body. The mixture layer comprises a first mixture layer and a second mixture layer that is arranged on the first mixture layer. The tortuosity (τ2) of the second mixture layer is lower than the tortuosity (τ1) of the first mixture layer. The ratio (τ2/τ1) of the tortuosity (τ2) to the tortuosity (τ1) satisfies, for example, 0.3 ≤ (τ2/τ1) < 1.
Inventors:
YAMAMOTO NORIHISA
SOGA MASAHIRO
SATO NAOMICHI
SOGA MASAHIRO
SATO NAOMICHI
Application Number:
PCT/JP2022/035112
Publication Date:
April 06, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/133; H01M4/131; H01M4/134; H01M4/36
Domestic Patent References:
| WO2021132114A1 | 2021-07-01 | |||
| WO2019003835A1 | 2019-01-03 |
Foreign References:
| JP2015037008A | 2015-02-23 |
Other References:
KEHRWALD DIRK, SHEARING PAUL R., BRANDON NIGEL P., SINHA PUNEET K., HARRIS STEPHEN J.: "Local Tortuosity Inhomogeneities in a Lithium Battery Composite Electrode", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 158, no. 12, 1 January 2011 (2011-01-01), pages A1393 - A1399, XP093053092, ISSN: 0013-4651, DOI: 10.1149/2.079112jes
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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