The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2011
Filed:
Dec. 29, 2009
Yu Sin Kim, Daejeon, KR;
Hyeong Jin Kim, Daejeon, KR;
Hye Yun Cha, Daejeon, KR;
Ho Chun Lee, Daejeon, KR;
Yu Sin Kim, Daejeon, KR;
Hyeong Jin Kim, Daejeon, KR;
Hye Yun Cha, Daejeon, KR;
Ho Chun Lee, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a compound represented by the following formula 1: wherein, each of R˜Rindependently represents —H, —F, —Cl, —Br, —I, —OH, —SH, —COOH, —POH, —NH, —NO, —O(CHCHO)H (wherein, n is an integer of 1˜5), C˜Calkyl group, C˜Caminoalkyl group, C˜Chydroxyalkyl group, C˜Chaloalkyl group, C˜Calkenyl group, C˜Calkoxy group, C˜Calkylamino group, C˜Cdialkylamino group, C˜Caryl group, C˜Caminoaryl group, C˜Chydroxyaryl group, C˜Chaloaryl group, C˜Cbenzyl group, C˜Caminobenzyl group, C˜Chydroxybenzyl group, C˜Chalobenzyl group, or nitrile group (—CN); and at least one of R˜Ris nitrile group (—CN). A non-aqueous electrolyte comprising: (i) a lithium salt, (ii) a solvent, and (iii) a compound represented by formula 1; and a secondary battery comprising the non-aqueous electrolyte are also disclosed. When the compound represented by formula 1 is added to a non-aqueous electrolyte, it is possible to improve the safety of a secondary battery in an overcharged state.