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:
Mar. 19, 2024
Filed:
Jan. 05, 2017
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Shunsuke Yamada, Inashiki-gun, JP;
Nobuyuki Ishiwatari, Inashiki-gun, JP;
Satoshi Akasaka, Inashiki-gun, JP;
Daigo Nagayama, Inashiki-gun, JP;
Shingo Morokuma, Inashiki-gun, JP;
Koichi Nishio, Inashiki-gun, JP;
Iwao Soga, Inashiki-gun, JP;
Hideaki Tanaka, Inashiki-gun, JP;
Takashi Kameda, Sakaide, JP;
Tooru Fuse, Sakaide, JP;
Hiromitsu Ikeda, Sakaide, JP;
MITSUBISHI CHEMICAL CORPORATION, Chiyoda-ku, JP;
Abstract
A carbon material for a non-aqueous secondary battery containing a graphite capable of occluding and releasing lithium ions, and having a cumulative pore volume at pore diameters in a range of 0.01 μm to 1 μm of 0.08 mL/g or more, a roundness, as determined by flow-type particle image analysis, of 0.88 or greater, and a pore diameter to particle diameter ratio (PD/d50 (%)) of 1.8 or less, the ratio being given by equation (1A): PD/d50 (%)=mode pore diameter (PD) in a pore diameter range of 0.01 μm to 1 μm in a pore distribution determined by mercury intrusion/volume-based average particle diameter (d50)×100 is provided.