Comsat Corporation

Hariharan Vaidyanathan

Martin W Earl

A lithium-ion cell includes a carbonaceous anode and a lithiated metal oxide cathode, with a plastic spacer therebetween and liquid electrolyte containing lithium salts. The cell stands for a period of time aller electrolyte is added. The cell is then charged at a first current density of about &frac14; mA/cm for at least an hour. Following the first charge, the cell stands open-circuited for at least an hour. The cell is again charged, at a current density significantly greater than the first current density, until the cell reaches a particular voltage which corresponds with the desired cell capacity, and gases are vented. After the second charge, the cell is discharged at a relatively high current density toward a particular voltage, so as to leave less active lithium ions in the anode structure. After discharge, the lithium ion cell is sealed and ready for charging by a user.

Lithium-ion cell and method for activation thereof

A rechargeable electrochemical battery having a solid organic electrolyte and a thin film cathode and anode. In particular, the battery employs a proton-conducting organic polymer which is a mixture of a strong acid and a base polymer, a thin film anode containing a hydride alloy, and a thin film cathode containing a NiO.sub.x active material. The battery is rechargeable and capable of fast discharging and recharging. Further, the battery can be hermetically sealed in a case.

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North Potomac, MD, United States of America

Hariharan Vaidyanathan