Effects of standtime on the available capacity of lead-acid and nickel/iron electric vehicle batteries

Conference · Wed Aug 01 00:00:00 EDT 1984 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5842590

DeLuca, W H; Biwer, R L; Tummillo, A F; Yao, N P

In electric vehicle (EV) applications, the battery load typically contains interruptions of various time durations. These standtimes affect the battery's available capacity and must be understood in order to predict and optimize vehicle operation. Laboratory tests were conducted to measure the impact of various standtimes (0-4 h) at different depth-of-discharge (DOD) and state-of-charge (SOC) levels on the capacity retention of both improved lead-acid and nickel/iron (Ni/Fe) EV batteries. The results showed that the Ni/Fe system exhibits a self-discharge capacity loss immediately after charging that increases with both standtime and SOC. Fortunately, the self-discharge rate decreases rapidly with standtime and discharging.

• Research Organization: Argonne National Laboratory, Argonne, Illinois
• OSTI ID: 5842590
• Report Number(s): CONF-840804-
• Journal Information: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Vol. 2; Conference: Intersociety energy conversion engineering conference, San Francisco, CA, USA, 19 Aug 1984
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
33 ADVANCED PROPULSION SYSTEMS
ELECTRIC-POWERED VEHICLES
IRON-NICKEL BATTERIES
LEAD-ACID BATTERIES
CAPACITY
PERFORMANCE TESTING
CHARGE STATE
ELECTRIC DISCHARGES
TIME DEPENDENCE
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
METAL-METAL OXIDE BATTERIES
TESTING
VEHICLES
250902* - Energy Storage- Batteries- Performance & Testing
330300 - Advanced Propulsion Systems- Electric-Powered Systems