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Solid-state electrolyte, preparation method thereof and solid-state lithium battery
The invention belongs to the technical field of lithium ion batteries, and particularly relates to a solid-state electrolyte, a preparation method thereof and a solid-state lithium battery. The molecular formula of the solid electrolyte is Li < 6 > PS < 5-x > Cl < 1-y >-O < x > F < y >, in the formula I, 0 < = x < = 1.5, and 0 < = y < = 0.35. The solid electrolyte disclosed by the invention has relatively high ion transmission capability, relatively low diffusion activation energy and relatively high air stability and interface stability; a solid-state lithium ion symmetric battery assembled by the solid-state electrolyte and a lithium metal negative electrode and a solid-state lithium ion total battery assembled by the solid-state electrolyte, a lithium metal/lithium alloy negative electrode and a high-voltage intercalation positive electrode have good electrochemical stability.
本发明属于锂离子电池技术领域，具体涉及一种固态电解质及其制备方法及固态锂电池。本发明的固态电解质的分子式为Li6PS5‑xCl1‑y‑OxFy式Ⅰ；式Ⅰ中0≤x≤1.5，0≤y≤0.35。本发明的固态电解质具有较快的离子传输能力、较低的扩散激活能和较高的空气稳定性以及界面稳定性，该固态电解质与锂金属负极组装的固态锂离子对称电池、以及与锂金属/锂合金负极和高压插层正极组装成的固态锂离子全电池均具有良好的电化学稳定性。
Solid-state electrolyte, preparation method thereof and solid-state lithium battery
The invention belongs to the technical field of lithium ion batteries, and particularly relates to a solid-state electrolyte, a preparation method thereof and a solid-state lithium battery. The molecular formula of the solid electrolyte is Li < 6 > PS < 5-x > Cl < 1-y >-O < x > F < y >, in the formula I, 0 < = x < = 1.5, and 0 < = y < = 0.35. The solid electrolyte disclosed by the invention has relatively high ion transmission capability, relatively low diffusion activation energy and relatively high air stability and interface stability; a solid-state lithium ion symmetric battery assembled by the solid-state electrolyte and a lithium metal negative electrode and a solid-state lithium ion total battery assembled by the solid-state electrolyte, a lithium metal/lithium alloy negative electrode and a high-voltage intercalation positive electrode have good electrochemical stability.
本发明属于锂离子电池技术领域，具体涉及一种固态电解质及其制备方法及固态锂电池。本发明的固态电解质的分子式为Li6PS5‑xCl1‑y‑OxFy式Ⅰ；式Ⅰ中0≤x≤1.5，0≤y≤0.35。本发明的固态电解质具有较快的离子传输能力、较低的扩散激活能和较高的空气稳定性以及界面稳定性，该固态电解质与锂金属负极组装的固态锂离子对称电池、以及与锂金属/锂合金负极和高压插层正极组装成的固态锂离子全电池均具有良好的电化学稳定性。
Solid-state electrolyte, preparation method thereof and solid-state lithium battery
一种固态电解质及其制备方法及固态锂电池
ZHOU ZHEN (author) / SANG JUNWU (author) / TANG BIN (author) / PAN KECHENG (author)
2023-04-25
Patent
Electronic Resource
Chinese
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