Title :
Rechargeable Li/LiCoO2 button cell
Author :
Slane, S. ; Plichta, E. ; Salomon, M.
Author_Institution :
US Army Electron. Technol. & Devices Lab., Fort Monmouth, NJ, USA
Abstract :
Electrolyte improvements made in laboratory half cells have enabled the practical development of the rechargeable Li/LiCoO2 system into sealed 70 mAh button cells. High-rate capabilities of greater than 6 mA/cm2 have been demonstrated in button cells cycled between 4.3 and 3.0 V at 25°C. Energy densities for a discharge rate of 2.7 mA/cm2 at 25°C, -10°C, and -40°C were 102, 89, and 81 Wh/kg, respectively. Higher-rate charging up to 1.25 mA/cm2 has been demonstrated. In addition, the effect of storage on the open circuit voltage of charged cells has been investigated
Keywords :
cobalt compounds; electrochemistry; electrolytes; lithium; lithium compounds; secondary cells; testing; -10 degC; -40 degC; 25 degC; 3 to 4.3 V; Li-LiCoO2; button cell; charging; cycling; development; discharge rate; electrolytes; energy density; open circuit voltage; rechargeable; sealed batteries; secondary cells; testing; Aluminum; Anodes; Cathodes; Circuits; Gaskets; Lithium; Particle separators; Spot welding; Temperature; Voltage;
Conference_Titel :
Power Sources Symposium, 1990., Proceedings of the 34th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-87942-604-7
DOI :
10.1109/IPSS.1990.145798
