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. 26, 2002
Filed:
Nov. 18, 1999
Applicant:
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/12 ; H01M 4/40 ; H01M 4/48 ; H01M 4/52 ;
U.S. Cl.
CPC ...
B05D 5/12 ; H01M 4/40 ; H01M 4/48 ; H01M 4/52 ;
Abstract
An active material having a composition of Li Ni M O (0.8<x<1.5, 0.8<y+z<1.2, 0≦z<0.35; M is an element selected from Co, Mg, Ca, Sr, Al, Mn and Fe) is preserved in a gas having a moisture dew point of −20° C. or less from immediately after production of said active material till preparation of an active material mixture-coating material, or is subjected to vacuum drying immediately before preparation of said active material mixture-coating material. The prepared mixture-coating material is applied onto a collector.