Patent Number: 6,165,647

Title: Secondary battery comprising a polymerizable material in its electrolyte solution

Abstract: A battery excellent in high temperature storage characteristic is presented. It comprises a positive electrode having a positive electrode active material containing an transition metal complex oxide containing lithium , a negative electrode containing a negative electrode material capable of storing and releasing a lithium ion, and an electrolytic solution containing a nonaqueous solvent, an electrolyte, and an organic compound expressed in formula 1. ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 have individually at least one of H and a group containing a vinyl group, and the number of H substituent is four or less.

Inventors: Watanabe; Shoichiro (Nara, JP), Iwamoto; Kazuya (Osaka, JP), Ueda; Atsushi (Osaka, JP), Nunome; Jun (Osaka, JP), Koshina; Hizuru (Osaka, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: H01M 4/36 (20060101); H01M 10/36 (20060101); H01M 10/40 (20060101); H01M 6/16 (20060101); H01M 006/16 ()

Expiration Date: 12/26/2017