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. 23, 2004
Filed:
Aug. 21, 2001
Norikazu Hosokawa, Nagoya, JP;
Hiroshi Ueshima, Anjo, JP;
Kenichiro Kami, Takahama, JP;
Manabu Yamada, Okazaki, JP;
Denso Corporation, Kariya, JP;
Abstract
A lithium secondary cell, in which a water-soluble polymer having a superior resistance to organic solvents is used as a binder, is disclosed. The cell comprises a positive electrode and an electrolytic solution, wherein the positive electrode includes a positive electrode active material having a LiNiO compound expressed as Li Ni M O (M is at least one element selected from a group including Co, Mn, Al, B, Ti, Mg and Fe, 0<x≦1.2, 0<y≦0.25) with a specific crystallimity and a binder for binding the positive electrode active material. The BET specific surface area of the LiNiO compound is not more than 0.65 m /g. The binder has a water-soluble polymer not swollen with the electrolytic solution. The surface of the positive electrode active material is covered by the water-soluble polymer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile