Lithium secondary battery

Details Lithium secondary battery Lithium secondary battery

2006-04-25

2011-11-22

Lee, Cynthia (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C525S007400

Reexamination Certificate

active

08062789

ABSTRACT:
A lithium secondary battery including a positive electrode, a negative electrode, a separator for separating the positive and negative electrodes, and a non-aqueous electrolyte. The separator includes a porous film formed of a mixture of a ceramic material and a binder, and the binder is formed of acrylic rubber having a three-dimensional crosslink structure. The separator provides excellent safety characteristics such as resistance to a short circuit and thermal resistance. Also, the separator improves a high-rate discharge characteristics and increases the life span.

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Kim, H., et al.,electrochemical and physical properties of composite polymer electrolyte of poly(methyl methacrylate)and poly(ethylene glycol diactylate), Journal of Power Sources, vol. 124, No. 1, Oct. 1, 2003, pp. 221-224 (English abstract only), XP004454615.
Patent Abstracts of Japan for Publication No. 05-054874, corresponding to Japanese Patent 3-060632 listed above and English machine translation.
English machine translation of Japanese Publication 2005-285605 listed above.
Japanese Office Action dated Dec. 15, 2009 of the corresponding Japanese Patent Application No. 2006-114575, noting listed reference in this IDS.

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