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:
Dec. 25, 2018
Filed:
Mar. 09, 2016
Waseda University, Tokyo, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Hiroyuki Nishide, Tokyo, JP;
Kenichi Oyaizu, Tokyo, JP;
Takuma Kawai, Tokyo, JP;
Satoshi Nakao, Tokyo, JP;
Takuji Yoshimoto, Funabashi, JP;
WASEDA UNIVERSITY, Tokyo, JP;
NISSAN CHEMICAL INDUSTRIES, LTD., Tokyo, JP;
Abstract
A fused-ring quinone-substituted polynorbornene has recurring units of formula (1) and/or (2) below. In formulas (1) and (2), Ais independently a substituent of formula (3) or (4) below, n is an integer from 1 to 6, and Ais a substituent of formula (5) or (6) below. In formulas (3) to (6), each X is independently a single bond or a divalent group, and Arand Arare each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer has charge-storing properties and, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.