Copper foil for current collector of lithium secondary battery and negative electrode including the same

The present disclosure provides an electrodeposited copper foil having a puncture strength value and a tear strength value. A ratio of the puncture strength value to the tear strength value is from 14 to 64. The present disclosure also provides a lithium-ion secondary battery. The lithium-ion second...

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Bibliographic Details
Main Authors Chou, Jui-Chang, Huang, Huei-Fang, Cheng, Kuei-Sen, Lai, Yao-Sheng
Format Patent
LanguageEnglish
Published 26.05.2020
Subjects
ALLOYS
APPARATUS THEREFOR
AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
FERROUS OR NON-FERROUS ALLOYS
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
PERFORMING OPERATIONS
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
PUNCHING METAL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:The present disclosure provides an electrodeposited copper foil having a puncture strength value and a tear strength value. A ratio of the puncture strength value to the tear strength value is from 14 to 64. The present disclosure also provides a lithium-ion secondary battery. The lithium-ion secondary battery is manufactured by using the electrodeposited copper foil and has excellent charge-discharge cycle life.
Bibliography:Application Number: US201916403473