Just as with lithium metal batteries, the solid electrolyte interface (SEI) layer forms spontaneously on the carbonaceous anode of a Li-ion cell during first charge.

• 除了钴和锰材料以外，锂离子和钒、磷酸盐等材料正应用在聚合物锂离子电池中。这意味着低成本、长寿命、高稳定性、更安全。