Patent ID: 6875540
Filing Date: 2005-04-05
Classification: H01M,Y02E

Abstract:
1. A lithium secondary battery comprising: a case; an internal electrode body positioned inside said case, said internal electrode body comprising at least one positive electrode, at least one negative electrode and at least one separator interposed between said positive electrode and said negative electrode, said positive electrode and said negative electrode being electrically insulated from each other; at least one electrolyte contained inside said case; a first terminal electrically connected to said negative electrode; a second terminal electrically connected to said positive electrode; and at least one insulator positioned between said case and at least one of said first and second terminals, said insulator comprising ethylene-propylene rubber, said insulator having a surface hardness of from 30 (durometer A) to a 60 (durometer D), and said insulator material having a volume resistivity of at least 10