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:
May. 21, 1991
Filed:
Mar. 17, 1989
Applicant:
Inventors:
Osamu Watanabe, Toyonaka, JP;
Osamu Kajii, Kashiwara, JP;
Toshiyuki Edamoto, Suita, JP;
Tomio Kitamura, Suita, JP;
Kaoru Hisatomi, Takatsuki, JP;
Hiroshi Yoshida, Suita, JP;
Yoshiki Somatomo, Osaka, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 94 ; 424241 ;
Abstract
In a coil type lithium battery comprising a coil electrode body formed by winding a strip like negative electrode plate of lithium or lithium alloy and strip like positive electrode about a separator, the entire outer cylindrical surface of the coil of the electrode body is covered with an insulating film to prevent internal short circuiting of the battery.