Lithium cell

• Main Author: KIM CHIN-SANG,GANG CHUN-WON,KIM HAK-SOO
• Format: Patent
• Language: English
• Published: 22.08.2007
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

A lithium secondary battery comprises an electrolyte including a lithium salt, a solvent consisting of at least one carbonate-based organic solvent and optionally at least one aromatic hydrocarbon solvent, and an isoxazole compound. A lithium secondary battery comprises: a positive electrode (5) including a material that is capable of reversible intercalation/deintercalation of lithium ions as a positive active material; a negative electrode (6) including a material that is capable of reversible intercalation/deintercalation of lithium ions as a negative active material; and an electrolyte including a lithium salt, a solvent consisting of at least one carbonate-based organic solvent and optionally at least one aromatic hydrocarbon solvent, and an isoxazole compound of formula (1). [Image] An independent claim is also included for preparation of a lithium secondary battery, comprising: (a) providing a positive electrode including a material that is capable of reversible intercalation/deintercalation of lithium ions as a positive active material; (b) providing a negative electrode including a material that is capable of reversible intercalation/deintercalation of lithium ions as a negative active material; (c) preparing an electrode assembly containing the positive and negative electrodes; (d) putting the electrode assembly in a battery case; and (e) injecting an electrolyte including a lithium salt, a solvent consisting of at least one carbonate-based organic solvent and optionally at least one aromatic hydrocarbon solvent; and an isoxazole compound, into the battery case to fabricate a lithium secondary battery.