| abstract |
The invention provides a three-dimensional metal lithium-oxide composite negative electrode, a preparation method and application thereof. The preparation method includes: (1) mixing a three-dimensional conductive framework and a metal solution, and performing a hydrothermal reaction to obtain a base material; The framework, the metal solution and the imidazole solution are mixed, and heat treated to obtain a base material; the metal element in the metal solution includes any one or a combination of at least two of vanadium, tin, zinc and cobalt, and the base material includes a three-dimensional conductive framework and a raw material. (2) mixing the base material and molten lithium to obtain a three-dimensional metal lithium-oxide composite negative electrode. The three-dimensional conductive framework and the lithiophilic oxide in the negative electrode of the invention synergistically synergize, suppress the formation of lithium dendrites, have large specific surface area and good morphology, can conduct charge uniformly, reduce local charge density, and suppress the volume expansion of the negative electrode. High capacity and cycle stability in all-solid-state lithium metal batteries. |