| abstract |
The present application provides a lithium ion battery, comprising a positive electrode piece, a separator and a negative electrode piece that are stacked in sequence; the positive electrode piece contains a lithium-replenishing material, and/or a side of the separator away from the negative electrode piece is provided with a supplemental lithium-containing material. Conductive layer of lithium material. Wherein, the separator is selected from one or more of PP separator, PE separator, PI separator, glass fiber separator and alumina-coated polymer separator. The compatibility of the lithium-replenishing material in the battery structure is good, which ensures the stable electrochemical performance of the battery. |