Nickel–cadmium battery
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The nickel–cadmium battery is a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes. The abbreviation Ni–Cd is derived from the chemical symbols of nickel and
From top to bottom: "Gumstick", AA, and AAA Ni–Cd batteries
View of a vented-cell aircraft battery from the side
Eight Ni–Cd batteries in a battery pack
Nickel–metal hydride battery
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A nickel–metal hydride battery is a type of rechargeable battery. The chemical reaction at the positive electrode is similar to that of the older nickel–cadmium cell, with both using nickel oxide hydr
Modern Ni–MH rechargeable cells
Disassembled NiMH AA battery: Positive terminal Outer metal casing (also negative terminal) Positive electrode Negative electrode with current collector (metal grid, connected to metal casing) Separator (between electrodes)
NiMH cell that popped its cap due to failed safety valve
High-power Ni–MH battery of Toyota NHW20 Prius, Japan