07-07-2023 дата публикации
Номер: CN116404244A
Принадлежит:
The invention provides a super-stable flexible all-solid-state polymer electrolyte and a preparation method thereof. The all-solid-state polymer electrolyte is obtained by compounding a mixture and a porous support membrane, wherein the mixture is formed by uniformly mixing a polymer matrix, a lithium salt and crown ether. The super-stable flexible all-solid-state polymer electrolyte provided by the invention has the characteristics of high strength, good flexibility and stable electrochemical performance, and the lithium-lithium symmetrical battery assembled based on the super-stable flexible all-solid-state polymer electrolyte has excellent cycling stability and quick charge property. A soft package battery assembled by using the ultra-stable flexible all-solid-state polymer electrolyte, a lithium iron phosphate positive electrode and a lithium metal negative electrode can still work normally after being folded and sheared for multiple times, and still has a capacity retention ratio of ...
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