Patent ID: 7833663
Filing Date: 2010-11-16
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method of manufacturing a rechargeable power cell, said method comprising the steps of: applying a zinc negative electrode material to a first carrier sheet having first and second opposing and substantially planar surfaces such that a first electrode is formed, wherein the zinc negative electrode material is a slurry including zinc oxide and an organic dispersant to reduce agglomeration of the zinc oxide; burning out the organic dispersant in the negative electrode material by heating the negative electrode material at an elevated temperature thereby improving the high rate performance of the negative electrode material; applying a nickel positive electrode material to a second carrier sheet having first and second opposing and substantially planar surfaces such that a second electrode is formed; disposing one separator sheet along the first planar surface of the first electrode, a second separator sheet along the second planar surface of the first electrode, a third separator sheet along the first planar surface of the second electrode, and a fourth separator sheet along the second planar surface of the second electrode such that the first electrode and the second electrode are separated by only two separator sheets to form a cell assembly; and winding the electrodes and sheets such that a cell assembly having a first end and a second end is formed and such that the first electrode, the second electrode, and the separator sheets are substantially co-parallel.