Multi-layered, UV-cured polymer electrolyte and lithium...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method

Reexamination Certificate

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Details

C429S309000, C429S314000, C429S316000, C429S307000, C429S144000, C252S062200

Reexamination Certificate

active

07135254

ABSTRACT:
The present invention relates to a multi-layered, UV-cured polymer electrolyte and lithium secondary battery comprising the same, wherein the polymer electrolyte comprises: A) a separator layer formed of polymer electrolyte, PP, PE, PVdF or non-woven fabric, wherein the separator layer having two surfaces; B) at least one gelled polymer electrolyte layer located on at least one surface of the separator layer comprising: a) polymer obtained by curing ethyleneglycoldi(meth)acrylate oligomer of the formula (I) by UV irradiation: CH2═CR1COO(CH2CH2O)nCOCR2═CH2wherein, R1and R2are independently hydrogen or methyl group, and n is a integer of 3–20; and b) at least one polymer selected from the group consisting of PVdF-based polymer, PAN-based polymer, PMMA-based polymer and PVC-based polymer; and C) organic electrolyte solution in which lithium salt is dissolved in a solvent.

REFERENCES:
patent: 5571392 (1996-11-01), Sato et al.
patent: 2000-133308 (2000-05-01), None

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