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. 07, 2000
Filed:
Feb. 27, 1998
Applicant:
Inventors:
Huanyu Mao, Burnaby, CA;
Ulrich von Sacken, Coquitlam, CA;
Assignee:
NEC Moli Energy Limited, Maple Ridge, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 61 ; 429 57 ; 429322 ; 42923195 ;
Abstract
Non-aqueous rechargeable lithium batteries can be equipped with internal electrical disconnect devices to protect against overcharge abuse. At the abnormally high voltages of overcharge, the devices can be activated by gasses generated as a result of the electrochemical polymerization of suitable monomer additives incorporated in the electrolyte. Aromatic compounds such as biphenyl are particularly suitable aromatic additives for LiCoO.sub.2 based lithium ion batteries.