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US 11,870,033 B2Granted
Solid electrolyte, method for preparing same, and all-solid battery comprising same
AssigneeLG Energy Solution, Ltd.
InventorsDaeil Kim, Jonghyun Chae
Life of this patent
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Abstract
A solid polymer electrolyte and a method of manufacturing the same are provided. More particularly, a solid polymer electrolyte having a high content of solids and exhibiting a flame retardant property and a method of manufacturing the same, wherein the solid polymer electrolyte includes a multifunctional acrylate-based polymer, a C2 to C10 polyalkylene oxide, a lithium salt and a non-aqueous solvent and wherein the multifunctional acrylate-based polymer is cross-linked with the polyalkylene oxide to form a semi-interpenetrating polymer network (semi-IPN).
Claims16
A solid polymer electrolyte comprising:
- a multifunctional acrylate-based polymer;
- a C2 to C10 polyalkylene oxide;
- a lithium salt;
- and
- a non-aqueous solvent, which is present in a solid state at room temperature and is homogeneously mixed within the solid polymer electrolyte through a melting process, and wherein the non-aqueous solvent comprises dimethyl sulfone,
- wherein the multifunctional acrylate-based polymer and the polyalkylene oxide form a semi-interpenetrating polymer network (semi-IPN), and
- wherein the multifunctional acrylate-based polymer, the C2 to C10 polyalkylene oxide, the lithium salt and the non-aqueous solvent together are present in an amount of more than 70% by weight of solids, based on a total weight of the electrolyte.
4 more elements
Dependencies are inferred from the claim text.