▎ 摘　　要

NOVELTY - Anode lithium supplement material is claimed. The material is hexalithium cobaltate coated solid electrolyte on the surface. USE - The material is useful in preparing lithium-ion battery (claimed). ADVANTAGE - The material improves the first discharge gram capacity and cycle performance of lithium-ion batteries, and improves the electrochemical performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: Preparing anode lithium supplement material comprising (i) mixing first cobalt source and the first lithium source uniformly and then calcining to obtain hexalithium cobaltate, (ii) mixing hexalithium cobaltate and solid electrolyte uniformly, and then solidifying by microwave sintering to obtain final product; and Lithium-ion battery, comprising anode piece, active material on the anode piece comprises anode active material A, and anode lithium supplement material; and Preparing lithium-ion battery comprising laminating or winding the anode piece, cathode piece and the diaphragm to obtain battery core, and then injecting an electrolyte to assemble.