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:
Jul. 14, 2020
Filed:
Apr. 04, 2008
Seiichiro Tabata, Kanagawa, JP;
Shinichiro Yamada, Kanagawa, JP;
Masayoshi Kanno, Kanagawa, JP;
Tsutomu Noguchi, Kanagawa, JP;
Takeshi Horie, Kanagawa, JP;
Seiichiro Tabata, Kanagawa, JP;
Shinichiro Yamada, Kanagawa, JP;
Masayoshi Kanno, Kanagawa, JP;
Tsutomu Noguchi, Kanagawa, JP;
Takeshi Horie, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
By a process for producing a porous carbon material from a plant-derived material as a raw material, said process including carbonizing the plant-derived material at 800° C. to 1,400° C. and then applying a treatment with an acid or alkali, a porous carbon material having a value of specific surface area of at least 10 m/g as measured by the nitrogen BET method, a silicon content of at most 1 wt % and a pore volume of at least 0.1 cm/g is obtainable from a plant-derived material, which has a silicon content of at least 10 wt %, as a raw material. Also provided is a process for producing a porous carbon material equipped with excellent functionality so that the porous carbon material can be used, for example, as an anode material for batteries, an adsorbent, masks, adsorbing sheets, or carriers.