Nickel cadmium cells have almost doubled in capacity since 1980 after being stagnated in performance for twenty years. Nickel metal hydride cells, introduced in 1992, have shown a 170 percent increase in energy density to be competitive on a volume basis with lithium ion. Other characteristics, such as charge retention, charge rate, high temperature operation, and rate capability have also advanced with improvements in materials and constructions. These two cell types account for roughly one half of the value of the small secondary battery market.
Sealed nickel cadmium and nickel metal hydride cell advances
IEEE Aerospace and Electronic Systems Magazine ; 15 , 12 ; 15-18
2000-12-01
401425 byte
Article (Journal)
Electronic Resource
English
Inner pressure characterization of a sealed nickel-metal hydride cell
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