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US 2019/0386340 A1Published application
Polymer electrolyte and preparation method therefor
AssigneesLG Chem, Ltd., Postech Academy-Industry Foundation
InventorsDaeil KIM, Moon Jeong PARK, Jonghyun CHAE, Yeonju LEE, Lucia KIM, Ha Young JUNG, Gyuha JO
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Abstract
A polymer electrolyte including a poly(ethylene oxide) (PEO) containing polymer; and a lithium salt, wherein a terminal of the poly (ethylene oxide) containing polymer is substituted with a sulfur compound functional group, a nitrogen compound functional group or a phosphorus compound functional group, and a method for preparing the same and a battery containing the same.
Claims15
A polymer electrolyte comprising:
- a poly(ethylene oxide) containing polymer;
- and
- a lithium salt,
- wherein a terminal of the poly(ethylene oxide) containing polymer is substituted with a sulfur compound functional group, a nitrogen compound functional group or a phosphorus compound functional group.
1 more element
A method of preparing a polymer electrolyte comprising the steps of:
- (a) adding a sulfur compound, a nitrogen compound or a phosphorus compound to a poly(ethylene oxide) containing polymer to modify a terminal of the poly(ethylene oxide) containing polymer;
- and
- (b) adding a lithium salt to the product of (a).
Dependencies are inferred from the claim text.