This paper describes the fast charge ability, or "fast rechargeability", of nominal 85 Ah Ni-MH modules under various fast charge conditions, including constant current (CC); typically 1-3C; and constant power (CP) regimes. The authors' tests revealed that there is no apparent difference between CC and CP fast charge regimes with respect to charge efficiency and time. Following the USABC Electric Vehicle Battery Test Procedures Manual (Revision 2, 1996), they demonstrated that they were able to return 40% state of charge (SOC) from 60% depth of discharge (DOD) to 20% DOD within 15 min. Most importantly, they found that the internal pressure of the cell is the most critical parameter in the control of the fast charge process and the safe operation of the modules.
Fast charging nickel-metal hydride traction batteries
Journal of Power Sources ; 101 , 2 ; 158-166
2001
9 Seiten, 9 Quellen
Aufsatz (Zeitschrift)
Englisch
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