Title:
SECONDARY BATTERY MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/017694
Kind Code:
A1
Abstract:
[Problem] To provide: a secondary battery material used for a lithium ion battery; a negative electrode active material comprising said secondary battery material; and a secondary battery comprising said negative electrode active material, wherein the secondary battery material provides a secondary battery having high charge/discharge capacity, initial efficiency, and capacity retention rate overall, and also having a good balance of these characteristics. [Solution] This secondary battery material contains Si (silicon), O (oxygen), and C (carbon), wherein the content ratio x of O with respect to Si is 0.1≤x≤2, and the content ratio y of C with respect to Si is 0.3≤y≤11.
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Inventors:
TAKEHISA TORU (JP)
ZHU PEIXIN (JP)
KATANO SATOSHI (JP)
SASAKI HIROTOMO (JP)
TAMURA TETSUYA (JP)
KAWASE KENICHI (JP)
BABA TAKANORI (JP)
ARAI TATSUHIKO (JP)
ZHU PEIXIN (JP)
KATANO SATOSHI (JP)
SASAKI HIROTOMO (JP)
TAMURA TETSUYA (JP)
KAWASE KENICHI (JP)
BABA TAKANORI (JP)
ARAI TATSUHIKO (JP)
Application Number:
PCT/JP2022/026169
Publication Date:
February 16, 2023
Filing Date:
June 30, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
H01M4/38; H01M4/36; H01M4/58
Domestic Patent References:
| WO2014002602A1 | 2014-01-03 | |||
| WO2020179409A1 | 2020-09-10 | |||
| WO2019107336A1 | 2019-06-06 | |||
| WO2013031993A1 | 2013-03-07 |
Foreign References:
| JP2020001941A | 2020-01-09 | |||
| JP2020138895A | 2020-09-03 | |||
| JP2020017504A | 2020-01-30 | |||
| JP2021114483A | 2021-08-05 | |||
| JP2017054720A | 2017-03-16 | |||
| JP2018502029W | ||||
| JP2018106830A | 2018-07-05 | |||
| JP2016164870A | 2016-09-08 | |||
| JP2019125435A | 2019-07-25 |
Attorney, Agent or Firm:
KOMAI Shinji (JP)
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