Patent ID: 7129002

Claim:
A method for producing a rechargeable electro-chemical element, having a negative electrode composed of a lithium/indium alloy, a positive electrode composed of lithium/intercalating material, an organic electrolyte, a positive housing half-section, a negative housing half-section, a separator and a seal between the housing half-sections, comprising: introducing an indium layer and a lithium layer into the negative housing half-section; introducing the positive electrode into the positive housing half-section; introducing the organic electrolyte and the separator in the housing half-sections; inserting the seal into one of the housing half-sections; sealingly joining the housing half-sections together; and forming the lithium/indium alloy layer from the indium layer and the lithium layer by subjecting the electro-chemical element to a charging/discharging cycle after sealingly joining the housing half-sections together.