Patent ID: 7981550
Filing Date: 2011-07-19
Classification: H01M

Abstract:
1. A method of preconditioning a primary electrochemical cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide, comprising the steps of: a) passing the cell to a first discharge step wherein the cell is drained by at least one pulse of discharge current; b) resting the cell for a period of between about 2 and 48 hours at a temperature above 21° C. after said first discharge step; and c) passing the cell to a second discharge step wherein the cell is drained by at least one pulse of discharge current; wherein said preconditioning consumes up to about 10 percent of the cell's theoretical capacity, and wherein said preconditioning is performed after the cell is assembled and before it is released for commercial sale.