Title:
二次電池用負極材、二次電池用負極、及び二次電池
Document Type and Number:
Japanese Patent JP7335809
Kind Code:
B2
Abstract:
A negative electrode material for a secondary battery is provided that can prevent deterioration of the cycle characteristic during the charge and discharge of the secondary battery and can enhance the initial coulombic efficiency. A negative electrode material for a secondary battery, including: a negative electrode active material containing a metal or a metal compound that can absorb and release an alkali metal ion or an alkaline earth metal ion, and containing a first carbon material that can absorb and release the alkali metal ion or the alkaline earth metal ion; and a conductive auxiliary containing a second carbon material different from the first carbon material, the negative electrode material having a capacity of 400 mAh/g or more, and the second carbon material being partially exfoliated graphite having a graphite structure in which graphite is partially exfoliated.
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Inventors:
Son Nintoku
Shoji Nozato
Akira Nakasuga
Shoji Nozato
Akira Nakasuga
Application Number:
JP2019542234A
Publication Date:
August 30, 2023
Filing Date:
June 07, 2019
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
H01M4/133; H01M4/36; H01M4/38; H01M4/62
Domestic Patent References:
| JP2013222641A | ||||
| JP2017182913A |
Foreign References:
| WO2014087992A1 | ||||
| WO2018043481A1 | ||||
| WO2017022734A1 |
Attorney, Agent or Firm:
Patent Attorney Osaka Front Patent Office