▎ 摘　　要

NOVELTY - A pole negative electrode comprises negative electrode current collector, first active material layer and second active materials layer sequentially covered on the negative electrode collector. The first active substance layer comprises a first activated material, and the second active material sheet comprises a second activated substance. The second active substance is at least one of soft carbon, hard carbon, graphite, silicon carbon material, graphene, activated carbon, foam carbon, and carbon gas gel. USE - Pole negative electrode for a capacitor field of a lithium ion capacitor of an energy storage device i.e. lithium ion battery. Can also be used for a super capacitor. ADVANTAGE - The active substance in the solution has high gram specific capacity, making the negative electrode piece have battery characteristics, which can improve the large surface area adhesive surface, reduce the dosage of the adhesive, and the active substance has high capacitance characteristic, it can quickly absorb lithium ion, and it has high ability to electrolyte solution and absorb. Through the combination of the first active material layer and the second active material layers, the solution can effectively relieve the high power electrolyte solutions transmission pressure, reduces the polarization internal resistance, and reduce the circulation attenuation caused by insufficient electrolytes solution. The negative electrode of pole piece improves the dynamic performance, mass ratio energy and large rate charging and discharging cycle performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) preparation of negative electrode; and (2) lithium ion capacitor.