▎ 摘　　要

NOVELTY - All-solid-state lithium battery includes an electrolyte layer (102) arranged between an anode (105) and a cathode (101). Another electrolyte layer (103) is arranged between the cathode and the former electrolyte layer. A third electrolyte layer (104) is arranged between the former electrolyte layer and the latter electrolyte layer. The former electrolyte layer contains a lithium borate salt. The latter electrolyte layer contains another lithium borate salt and a lithium salt. The third electrolyte layer contains another lithium salt. The concentration of the former lithium salt in the latter electrolyte layer is less than concentration of the latter lithium salt in the third electrolyte layer. USE - All-solid-state lithium battery used in digital electronic product and automobile (all claimed). ADVANTAGE - The all-solid-state lithium battery interface has high compatibility, high ion transmission rate, and good circulation stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing all-solid-state lithium battery, which involves preparing positive electrode, electrolyte layer, the electrolyte layer, the latter electrolyte layer and the negative electrode, and then assembling layers. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the all-solid-state lithium battery. Positive electrode (101) Electrolyte layers (102, 103, 104) Negative electrode (105)