Nickel-Metal Hydride and Silver-Metal Hydride Batteries for Aerospace Applications 929460
Nickel and silver-metal hydride batteries are being developed for aerospace applications by Eagle-Picher. Metal hydride batteries offer a number of advantages over other aerospace battery systems. Nickel-metal hydride batteries have twice the gravimetric energy density of nickel-cadmium and twice the volumetric energy density of nickel-hydrogen. Silver-metal hydride batteries have the potential of three times the energy density of nickel-metal hydride and exhibit superior charge retention characteristics. Aerospace metal hydride batteries are hermetically sealed, operate at low pressure and are prismatic in geometry. They exhibit excellent overcharge and overdischarge capability. Preliminary calorimetry data indicates superior thermal performance as compared to nickel-cadmium and nickel-hydrogen batteries. Some initial AC impedance spectroscopy work has been completed on both metal-hydrogen and metal-hydride battery systems. The objective of current programs at Eagle-Picher is to develop high energy density, long cycle life metal-hydride batteries for the aerospace market and to establish a testing database to support future applications.
Citation: Coates, D., Fox, C., and Miller, L., "Nickel-Metal Hydride and Silver-Metal Hydride Batteries for Aerospace Applications," SAE Technical Paper 929460, 1992, https://doi.org/10.4271/929460. Download Citation
Author(s):
Dwaine Coates, Chris Fox, Lee Miller
Affiliated:
Eagle-Picher Industries, Inc.
Pages: 6
Event:
27th Intersociety Energy Conversion Engineering Conference (1992)
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Nickel-metal hydride batteries
Batteries
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