Title:
Nature material for nonaqueous electrolyte secondary battery cathodes of carbon
Document Type and Number:
Japanese Patent JP6237781
Kind Code:
B2
Abstract:
Provided is a less hygroscopic carbonaceous material that is obtained from a plant-derived carbonaceous raw material and that, when used as a negative electrode material for a nonaqueous electrolyte secondary battery, allows the battery to exhibit good battery characteristics. Provided is a carbonaceous material for negative electrodes of nonaqueous electrolyte secondary batteries. This carbonaceous material is a particulate carbonaceous material containing carbonaceous particles. The carbonaceous material has a BET specific surface area of 1 m 2 /g or more and less than 20 m 2 /g. Each of the carbonaceous particles of the carbonaceous material has a core and a skin covering the core. The core contains a calcined product of a plant-derived carbonaceous raw material. The skin is made of a material that has higher electron emission ability upon irradiation with an electron beam than a material of the core.
Inventors:
Akira Mitsushima
Okuno Sotoshi
Kenichi Maru
Hideharu Iwasaki
Kenta Aoki
Imabari Makoto
Yasuhiro Tada
Naohiro Sonobe
Okuno Sotoshi
Kenichi Maru
Hideharu Iwasaki
Kenta Aoki
Imabari Makoto
Yasuhiro Tada
Naohiro Sonobe
Application Number:
JP2015543702A
Publication Date:
November 29, 2017
Filing Date:
October 10, 2014
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
H01M4/587; H01M4/36
Domestic Patent References:
| JP2013534024A | ||||
| JP2011204906A | ||||
| JP9293648A | ||||
| JP2008124034A | ||||
| JP2014519135A |
Foreign References:
| WO2014034859A1 | ||||
| WO2014038491A1 |
Attorney, Agent or Firm:
Koichi Kamata