COPPER FOIL WITH HIGH ENGERY AT BREAK AND SECONDARY BATTERY COMPRSING THE SAME

• Main Authors: MOON HONGGI, SEUNGHWAN KIM, SANGBEOM KIM
• Format: Patent
• Language: English; Korean
• Published: 29.04.2022
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The present invention relates to a copper foil having a high fracture energy after heat treatment and exhibiting an excellent fracture resistance, an electrode for a secondary battery that can exhibit excellent cycle life characteristics, safety and processability, and a secondary battery including the electrode. The copper foil includes a copper layer and an anticorrosive layer. 본 발명은 열처리 후 높은 파괴 에너지를 가져 우수한 파단 저항성을 나타내는 동박, 이를 포함하여 우수한 사이클 수명 특성, 안전성 및 가공성을 발휘할 수 있는 이차전지용 전극 및 상기 전극을 포함하는 이차전지를 제공한다.