US 6,927,001 B1
Non-aqueous electrolytic solution and lithium secondary batteryGeneral
US 6,927,001 B1
Non-aqueous electrolytic solution and lithium secondary battery
Tech Center:
1700 Chemical and Materials Engineering
Examiner:
Raymond Alejandro
Art Unit:
1745 Tires, Adhesive Bonding, Glass/Paper making, Plastics Shaping & Molding
Agent:
Inventors:
Toshikazu Hamamoto; Akira Ueki; Koji Abe; Yasuo Matsumori
Assignee:
Priority:
05/24/99
Filed:
05/24/00
Granted:
08/09/05
Expiration:
08/21/20
Abstract
A non-aqueous electrolytic solution composed of two or more organic compounds dissolved in a solvent composed of a cyclic carbonate and a chain carbonate, in an amount of 0.01 to 8 weight % for each compound, in which both of the two organic compounds have a reduction potential higher than those of the cyclic and chain carbonates, and in which one of the organic compounds has a reduction potential equal to that of another organic compound or has a reduction potential lower or higher than that of another organic compound by a potential of less than 0.4 V is favorably employable for a non-aqueous secondary battery.