CONTINUOUS MANUFACTURING METHOD FOR LITHIUM SECONDARY BATTERY HAVING PASSIVATION FILM FORMED ON SURFACE OF LITHIUM METAL ELECTRODE AND LITHIUM ION BATTERY PRODUCED BY SAME MANUFACTURING METHOD

• Main Authors: CHOI HYUNJUN, EGAL JONGPIL
• Format: Patent
• Language: Chinese; English
• Published: 20.12.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a manufacturing method for a lithium secondary battery and a lithium secondary battery produced by the manufacturing method, the method comprising the steps of: (i) preparing a lithium metal electrode having metal lithium (Li) formed one surface or both surfaces of a current collector; (ii) forming a passivation film, which is a stable coating, by applying, to a surface of the metal lithium, an electrolyte for coating containing at least one lithium salt, at least one non-aqueous-based organic solvent, and at least one additive; (iii) manufacturing an electrodeassembly with using the lithium metal electrode as a negative electrode; and (iv) embedding the electrode assembly in a secondary battery case and injecting an electrolyte for injection containing atleast one lithium salt, at least one non-aqueous-based organic solvent, and at least one additive, wherein the additive of the electrolyte for coating and the additive of the electrolyte for injection employ particular materi