US 8,137,849 B2 · Phosphate-based acrylate crosslinking agent for polymer electrolyte and a composition containing the same

Abstract

The present invention relates to a phosphate-based acrylate crosslinking agent for polymer electrolyte and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent, and in particular to a phosphate-based acrylate crosslinking agent where a phosphate-based compound is introduced with a polyalkylene oxide group and an acrylate group and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent. The polymer electrolyte composition can be applied to electrolyte thin film and polymer electrolyte of small and large capacity lithium-polymer secondary battery due to its superior ionic conductivity and electrochemical and thermal stability, where the physical properties of electrolyte composition may be controlled by means of the length of polyalkylene oxide of the crosslinking agent.

Claims12

Dependent claims

A solid polymer electrolyte composition comprising:

0.1-95 wt % of a phosphate-based acrylate crosslinking agent of Formula 1;
0.1-98 wt % of one or more of a plasticizer selected from polyalkylene glycol dialkyl ether of Formula 2 and a polar aprotic solvent;
3-40 wt % of a lithium salt;
and
0.1-5 wt % of an initiator:
wherein R1 and R2 are respectively a hydrogen atom or a methyl group;
and n is an integer of 1-20;
wherein R3 and R4 are respectively a C1-C10 a linear or branched alkyl group;
R5, R6 and R7 are respectively a hydrogen atom or a methyl group;
o, p and q are respectively an integer of 0-20 except when all of o, p and q are zero at the same time.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/375,057Filed 26 Jul 2007

Priority

KR 10-2006-007044126 Jul 2006

Published

US 2010/0003604 A17 Jan 2010

Granted

20 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

C07F 9/091
Esters of phosphoric acids: with hydroxyalkyl compounds with further substituents on alkyl
C08F 222/103
Of polyhydric alcohols or polyhydric phenols: of trialcohols, e.g. trimethylolpropane triacrylate
C08F 230/02
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing…:…
Y02E 60/10
Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation: energy storage using batteries

Phosphate-based acrylate crosslinking agent for polymer electrolyte and a composition containing the same

Life of this patent

Phosphate-based acrylate crosslinking agent for polymer electrolyte and a composition containing the same

Life of this patent

Abstract

Claims12