Patent ID: 6638322
Filing Date: 2003-10-28
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A process for producing a rechargeable lithium battery comprising at least a cathode, a separator, an anode, and an electrolyte or electrolyte solution integrated in a battery housing, said process comprising the steps of:(a) forming a cathode having a cathode active material as said cathode, (b) forming anode, (c) preparing said electrolyte or electrolyte solution, (d) providing said separator, (e) providing said battery housing, (f) integrating said anode, said cathode, and said separator in said battery housing, (g) disposing said electrolyte or electrolyte solution in said battery housing, and (h) sealing said battery housing, characterized in that said step (a) includes a substep of preparing said cathode active material of said cathode, comprising mixing and dissolving a salt of a transition metal in an aqueous solution containing at least a water-soluble polymer material to obtain an intermediate, and baking said intermediate to form a powdery cathode active material.