23-06-2023 дата публикации
Номер: CN116315052A
Принадлежит:
The invention provides a solid-state electrolyte material, a preparation method, an electrode and a lithium ion battery, the solid-state electrolyte material comprises a halide solid-state electrolyte, the chemical general formula of the halide solid-state electrolyte is Li < 2 + a-b > Zr < 1-a-b > A < a > B < b > X < 6 >, the element A is at least one of trivalent metal elements, the element B is at least one of pentavalent tantalum or niobium, the element X is at least one of F, Cl, Br and I, the value range of 2 + a-b is 1.85-2.45, preferably 2.0-2.3, the value range of a + b is 0.1-0.5, and the value range of a/b is 0.5-3.5, compared with a standard structure of Li2ZrCl6, by doping proper types of A and B elements, the microstructure in the prepared halide solid electrolyte is regulated and controlled, the migration barrier of lithium ions in the halide solid electrolyte is reduced, and the performance of the halide solid electrolyte is improved. Therefore, the ionic conductivity of ...
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