적층 전해박

• Main Authors: YOSHIOKA KOH, HORIE SHINICHIRO, KOYANAGI TOSHIFUMI, TSUTSUMI ETSURO
• Format: Patent
• Language: Korean
• Published: 14.12.2020
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

[과제] 전지용 집전체에 있어서, 박형화에 따라 우려되는 제조시의 찢어짐과 끊어짐을 억제할 수 있을 만큼의 충분한 강도를 갖고, 또한 제조시의 취급성을 향상시킨 적층 전해박 및 그것을 사용한 전지를 제공한다. [해결수단] Cu로 이루어지는 제 1 금속층과 Ni 또는 Ni 합금으로 이루어지는 제 2 금속층이 적층된 적층 전해박으로서, 적층 전해박 전체의 두께인 전체층 두께가 3~15㎛이며, 인장강도가 700㎫ 이상인 것을 특징으로 하는 적층 전해박. [Problem] To provide a laminated electrolytic foil having strength sufficient to successfully suppress tearing or ripping during manufacture, the tearing or ripping being concerned accompanying with a trend toward thinner structures in battery current collectors, and improved in handling properties during the manufacture, and also a battery using the laminated electrolytic foil.[Solution] A laminated electrolytic foil includes a first metal layer formed from Cu and a second metal layer formed from Ni or an Ni alloy, in which the first metal layer and the second metal layer are laminated together. The laminated electrolytic foil has an overall layer thickness, which is the thickness of the laminated electrolytic foil as a whole, of 3 to 15 μm and tensile strength of 700 MPa or higher.