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:
Apr. 14, 2025
Filed:
Feb. 11, 2021
Tohoku University, Sendai, JP;
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Mikio Fukuhara, Sendai, JP;
Fumihiko Hasegawa, Sendai, JP;
Tomoyuki Kuroda, Sendai, JP;
Osamu Ito, Sendai, JP;
Toshiyuki Hashida, Sendai, JP;
Takeshi Nakatani, Tokyo, JP;
Masahiro Morita, Tokyo, JP;
TOHOKU UNIVERSITY, Sendai, JP;
NIPPON PAPER INDUSTRIES CO., LTD., Tokyo, JP;
Abstract
A power storage material is made by using a fiber material of cellulose molecules obtained from wood, plant fibers (pulp), and the like, and capable of storing electric power of direct current and alternating current, and an ultra power storage body has the power storage material. A power storage material includes a fiber mainly including a fiber derived from at least any one of wood, plant fibers (pulp), animals, algae, microorganisms, and microbial products, and having a large number of recesses and protrusions on a surface. The fiber is preferably crystallized/amorphous fibers, is preferably an amorphous fiber having an atomic vacancy, and preferably has a specific surface area of 10 m/g or more. Preferably, the large number of recesses and protrusions have a diameter of 1 nm to 500 nm. Preferably, the electric resistance is 100 MΩ or more, and the electric capacity is 5 mF/cmor more.