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2. Nickel–iron battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–iron_battery

   Thomas Edison in 1910 with a nickel-iron cell from his own production line. The nickel–iron battery (NiFe battery) is a rechargeable battery having nickel(III) oxide-hydroxide positive plates and iron negative plates, with an electrolyte of potassium hydroxide. The active materials are held in nickel-plated steel tubes or perforated pockets.

3. Comparison of commercial battery types - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_commercial...

   Nickel–zinc: 100 to 50% capacity [14] Nickel–iron: 65–80 5,000 Nickel–cadmium: 70–90 500 [26] Nickel–hydrogen: 85 20,000 [32] Nickel–metal hydride: 66 300–800 [14] Low self-discharge nickel–metal hydride battery: 500–1,500 [14] Lithium cobalt oxide: 90 500–1,000 Lithium–titanate: 85–90 6,000–30,000 to 90% capacity ...

4. Iron–nickel alloy - Wikipedia

   en.wikipedia.org/wiki/Iron–nickel_alloy

   Ni 2 Fe to Ni 3 Fe Earth's core: Earth's core is composed of an iron–nickel alloy [8] about 5.5% Ni: Elinvar: A manufactured alloy whose elasticity does not change with temperature; 5% Cr: 36% Ni: Invar: A steel manufactured to have a very low thermal expansion: 36% Ni: Kamacite: A native metal found in meteoric iron: Fe [0.9] Ni [0.1 ...

5. Waldemar Jungner - Wikipedia

   en.wikipedia.org/wiki/Waldemar_Jungner

   Ernst Waldemar Jungner (19 June 1869 – 30 August 1924) was a Swedish inventor and engineer. In 1898 he invented the nickel-iron electric storage battery (NiFe), the nickel-cadmium battery (NiCd), and the rechargeable alkaline silver-cadmium battery (AgCd).

6. Metal–air electrochemical cell - Wikipedia

   en.wikipedia.org/wiki/Metal–air_electrochemical...

   Most of the batteries currently being developed utilize iron oxide powders to generate and store hydrogen via the Fe/FeO reduction/oxidation (redox) reaction (Fe + H 2 O ⇌ FeO + H 2). [20] In conjunction with a fuel cell, this enables the system to behave as a rechargeable battery, creating H 2 O/H 2 via the production and consumption of ...

7. Nickel battery - Wikipedia

   en.wikipedia.org/wiki/Nickel_battery

   Nickel battery may refer to: . Nickel–cadmium battery, a type of rechargeable battery using nickel oxide hydroxide and metallic cadmium as electrodes; Nickel–iron battery, a type of rechargeable battery using nickel(III) oxide-hydroxide positive plates and iron negative plates, with an electrolyte of potassium hydroxide