The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Jan. 18, 2017
Kuraray Co., Ltd., Kurashiki-shi, Okayama, JP;
Makoto Imaji, Tokyo, JP;
Kenta Aoki, Tokyo, JP;
Yasuhiro Tada, Tokyo, JP;
Naohiro Sonobe, Tokyo, JP;
Junichi Arima, Bizen, JP;
Kenichi Koyakumaru, Bizen, JP;
Hideharu Iwasaki, Kurashiki, JP;
Kiyoto Otsuka, Bizen, JP;
Jiro Masuko, Tokyo, JP;
Hajime Komatsu, Tokyo, JP;
Shinya Tago, Bizen, JP;
KURARAY CO., LTD., Kurashiki-Shi, JP;
Abstract
The object of the present invention is to provide a carbonaceous material which is obtainable from plant-derived char and has a decreased specific surface area. Further, the object of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent dedoping capacity, non-dedoping capacity, and charge-discharge efficiency. The object can be solved by a carbonaceous material for non-aqueous electrolyte secondary batteries characterized in that the carbonaceous material is obtained by heat-treating plant-derived char which is demineralized in gas-phase, and carbon precursor or volatile organic compound under a non-oxidizing gas atmosphere; and a specific surface area determined by a BET method is 10 m/g or less.