Title :
Electrical characterization testing of sealed nickel-zinc batteries
Author :
Coates, Dwaine ; Charkey, Allen
Author_Institution :
Energy Res. Corp., Danbury, CT, USA
fDate :
27 Jul-1 Aug 1997
Abstract :
Sealed nickel-zinc batteries are being developed for commercial applications. The nickel-zinc system offers many advantages including a unique combination of high performance and low-cost. Electrical characterization testing currently underway includes electrical performance and charge efficiency as function of temperature and charge efficiency as a function of state-of-charge. Thermal testing includes basic calorimetry and thermal modeling and analysis at the cell and battery level. Life cycle testing includes discharge capacity and voltage performance as a function of cycling, charging characteristics as a function of cycling, the effect of overcharge on performance and cycle life, cell internal impedance as a function of cycling and cycle life as a function of depth-of-discharge (DOD). Cells currently yield more than 600 cycles at 80% DOD and 11,000 cycles at 10% DOD
Keywords :
electrochemistry; nickel; secondary cells; testing; thermal analysis; zinc; Ni-Zn; Ni-Zn secondary batteries; calorimetry; charge efficiency; charging characteristics; depth-of-discharge; discharge capacity; electrical characterization testing; electrical performance; internal impedance; life cycle testing; overcharge; sealed batteries; state-of-charge; temperature; thermal modeling; thermal testing; voltage performance; Application software; Batteries; Bicycles; Costs; Electrodes; Hybrid electric vehicles; Manufacturing processes; Nickel; Testing; US Department of Defense;
Conference_Titel :
Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-4515-0
DOI :
10.1109/IECEC.1997.661881
