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Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/024532
Kind Code:
A1
Abstract:
The present invention relates to a negative electrode active material which contains Si particles, first particles and second particles, wherein: the volume expansion ratio of the first particles due to Li absorption is 0-80%; and the volume expansion ratio of the second particles due to Li absorption is 100-300%.

Inventors:
KIMURA YUTA (JP)
SHIMOMURA KYOHEI (JP)
OHISA HIROYUKI (JP)
Application Number:
PCT/JP2023/025970
Publication Date:
February 01, 2024
Filing Date:
July 13, 2023
Export Citation:
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Assignee:
DAIDO STEEL CO LTD (JP)
International Classes:
H01M4/36; H01M4/38; H01M4/48
Domestic Patent References:
WO2015064633A12015-05-07
WO2012133844A12012-10-04
Foreign References:
JP2016110917A2016-06-20
US20200403221A12020-12-24
JP2016001603A2016-01-07
Attorney, Agent or Firm:
YAMAZAKI Tomoko (JP)
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