FABRICATION OF LITHIUM SECONDARY BATTERY

A method of fabricating a lithium secondary battery, which improves charge-discharge characteristics, lifespan, and temperature characteristics of the battery and which includes interposing a separator between a positive electrode plate and a negative electrode plate, thus manufacturing an electrode...

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Bibliographic Details
Main Authors LEE, EUN JOO, KO, TAE KON, MIN, JAE YUN, OH, JEON KEUN
Format Patent
LanguageEnglish
French
German
Published 20.06.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A method of fabricating a lithium secondary battery, which improves charge-discharge characteristics, lifespan, and temperature characteristics of the battery and which includes interposing a separator between a positive electrode plate and a negative electrode plate, thus manufacturing an electrode assembly; housing the electrode assembly in a battery case, introducing an additive-containing electrolytic solution, and then sealing the battery case; subjecting the sealed battery case to pre-charging, and then removing gas generated by the pre-charging; and subjecting the battery case to formation, wherein the additive is one or more selected from among LiF2BC2O4, 3,9-divinyl-2,4,8,10-tetraoxaspiro[5,5]undecane, LiBC(C2O4)2, poly(ethyleneglycol)borate and derivatives thereof, halogen-substituted carbonate, and vinyl silane, and the pre-charging is conducted in a range of 50˜100% of a battery capacity.
Bibliography:Application Number: EP20080722954