Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Reexamination Certificate
2011-05-24
2011-05-24
Ruddock, Ula C. (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
C429S307000, C429S310000, C429S317000
Reexamination Certificate
active
07947398
ABSTRACT:
Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte further comprising a lactam-based compound substituted with an electron withdrawing group (EWG) at the nitrogen position thereof. The electrolyte allows formation of a firm and dense SEI film on the surface of an anode, minimizes irreversible oxidative decomposition at a cathode, and thus can provide a battery with significantly improved lifespan, stability and high temperature characteristics.
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XP007911943.
XP007911944.
Supplemental European Report dated Mar. 8, 2010.
PCT International Search Report—Date of Mailing International Search Report Oct. 25, 2007.
Cho Jeong Ju
Lee Ho Chun
Yoon Soo Jin
Cantor & Colburn LLP
LG Chem Ltd.
Parsons Thomas H.
Ruddock Ula C.
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