Title:
NEGATIVE-ELECTRODE MATERIAL, BATTERY, METHOD FOR PRODUCING NEGATIVE-ELECTRODE MATERIAL, AND METHOD FOR PRODUCING BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/215498
Kind Code:
A1
Abstract:
The present invention addresses the problem of improving performance. This negative-electrode material is for a battery, and includes carbon, tungsten trioxide, and silicon particles (33) containing silicon. When measured using X-ray photoelectron spectroscopy, the silicon particles (33) have a rate equal to 3 or more by atomic concentration of a Si quantity of Si2p derived from pure silicon relative to a Si quantity of Si2p derived from SiO2 in the surface layer.
Inventors:
NAKADA YOSHINOBU (JP)
RIKITA NAOKI (JP)
TANG JIE (JP)
ZHANG KUN (JP)
RIKITA NAOKI (JP)
TANG JIE (JP)
ZHANG KUN (JP)
Application Number:
PCT/JP2022/012756
Publication Date:
October 13, 2022
Filing Date:
March 18, 2022
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
H01M4/36; H01M4/38; H01M4/48; H01M4/587
Domestic Patent References:
| WO2015129188A1 | 2015-09-03 |
Foreign References:
| JP2014032964A | 2014-02-20 | |||
| JP2005063767A | 2005-03-10 | |||
| CN104103819A | 2014-10-15 | |||
| JP2018045904A | 2018-03-22 | |||
| JP2015125816A | 2015-07-06 |
Other References:
J. D. LEE ET AL., JOURNAL SURFACE ANALYSIS, vol. 16, no. 1, 2009, pages 42 - 63
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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