Patent ID: 6794087
Filing Date: 2004-09-21
Classification: C22C,H01M,Y02E,Y02P,Y10T

Abstract:
A lithium battery comprising:a lithium negative electrode prepared by melting lithium metal under an inert gas atmosphere and coating the liquid lithium metal uniformly on a metal current collector; a positive electrode including a binder; a separator placed between the positive and negative electrodes; and an electrolyte comprising a lithium salt and organic solvents, contained in the positive and negative electrodes and the separator, wherein the current collector is nickel, copper or a metal-sprayed nickel or copper, and the metal being sprayed is a lithium-wetting metal, wherein the lithium-wetting metal is selected from the group consisting of Al, Si, and Sn, and wherein the lithium battery retains 90% or greater of a capacity at a fiftieth charging and discharging cycle as compared to a capacity at a first charging and discharging cycle.