Abstract: The present invention is aimed to provide a complex electrode for a lithium ion battery, consisting of: an electro-conductive current collector with porous three-dimensional network construction, the electrode active materials filled in the porous current collector, and a porous ionic conductive polymer binder coated in the pores of the current collector holding the electrode materials. In the abovementioned lithium ion battery complex electrode construction, the current collector connects with the electrode active materials through its highly porous three-dimensional backbone network and thus greatly improves the utilization of the electrode active materials and obtains high area density and low impedance of the electrode. Another objective of this invention is to disclose a novel electrode fabrication technique for lithium ion batteries.

Abstract: The present invention is related with a novel fabrication technique for a lithium ion battery, consisting of a cathode layer and an anode layer. The cathode and the anode layer are configured through a separator in between. The cathode or the anode layer comprises: a current collector with porous three-dimensional network construction; an electrode active material, filled in the pores and onto the both sides of the abovementioned current collector; and a layer of porous ionic conductive polymer layer, coated on the abovementioned current collector holding the electrode material. In the abovementioned lithium ion battery, the cathode or the anode layer comprises both the current collector and the electrode material. The current collector connects with the electrode material through its porous three-dimensional network and thus improves the active material utilization, capacity and energy density of the lithium ion battery.