▎ 摘　　要

NOVELTY - A battery (100) comprises an anode (120) provided to output lithium ions (125) during cycle of the battery, a graded interface layer arranged on the anode, a cathode (110) positioned opposite to the anode, an electrolyte (130) dispersed throughout the cathode and the anode, and a separator positioned between the anode and cathode. The interface layer comprises a tin fluoride layer and a tin-lithium alloy region formed between the tin fluoride layer and the anode. The tin-lithium alloy region is provided to produce and uniformly disperse lithium fluoride between the anode and the tin fluoride layer during the cycle of the battery. USE - Battery e.g. lithium-ion battery and lithium-sulfur battery. Uses include but are not limited to mobile phones, laptops, electric vehicles (EVs), factories, buildings, lightbulb and consumer electronics. ADVANTAGE - The battery is safe, has excellent cycle characteristics, discharge capacity, discharge capacity retention property and improved lifespan due to the electrolyte, overall efficiency and performance due to presence of graded layer. The graded layer decreases or prevents lithium-containing dendritic growth from the anode, and increases the ability of the anode to expand and contract during operational cycle of the host battery without rupturing. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the battery. Battery (100) Cathode (110) Anode (120) Lithium ions (125) Electrolyte (130)