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:
Dec. 31, 2019
Filed:
Oct. 28, 2016
Lg Chem, Ltd., Seoul, KR;
Dong Wook Ko, Daejeon, KR;
Doo Kyung Yang, Daejeon, KR;
Eun Kyung Park, Daejeon, KR;
Jong Hyun Chae, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
A polymer electrolyte for an all-solid battery, having a multi-layer structure is provided. An embodiment of the polymer electrolyte is a polymer electrolyte having a multi-layer structure, which includes a first polymer electrolyte layer and a second polymer electrolyte layer, where the EO:Li molar ratio of a poly(ethylene oxide)(PEO)-based polymer and a lithium salt is different between the first and second polymer electrolyte layers is provided. A solid polymer electrolyte of the present invention in the all-solid battery substantially reduces the interfacial resistance with lithium and the discharge overvoltage, resulting in a sufficient discharge capacity, which improves output characteristics and energy density.