Nonaqueous lithium secondary battery with cyclability and/or high temperature safety improved

The present invention provides: (i) a nonaqueous electrolyte for batteries, which is characterized by containing halogen; (ii) a nonaqueous electrolyte for batteries, which is characterized by containing pyrrol or its derivative and halogen; and (iii) a lithium secondary battery which is characteriz...

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Main Author RYU DUK-HYUN,LEE JAE-HYUN,JEONG JUN-YONG,YEON JIN-HEE,JANG MINUL,KOO CHANG-WAN,SHIN SUN-SIK,KU CHA-HUN,LEE HAN-HO
Format Patent
LanguageEnglish
Published 18.10.2006
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present invention provides: (i) a nonaqueous electrolyte for batteries, which is characterized by containing halogen; (ii) a nonaqueous electrolyte for batteries, which is characterized by containing pyrrol or its derivative and halogen; and (iii) a lithium secondary battery which is characterized by including the nonaqueous electrolyte (i) or (ii). The inventive lithium secondary battery has improvements in charge/discharge and cycle life characteristics at ambient and high temperatures, and/or storage characteristics and safety at high temperature.
Bibliography:Application Number: CN200480025941