Nickel–iron battery

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Nickel–iron battery
Thomas Edison's nickel–iron batteries.jpg
Nickel–iron batteries manufactured between 1972 and 1975 under the "Exide" brand originally developed in 1901 by Thomas Edison.
Speceefic energy19-25 [1] Wh/kg
Energy density30 Wh/l
Speceefic pouer100[2] W/kg
Chairge/dischairge efficiency<65%[3]
Energy/consumer-price1.5 – 6.6[2] Wh/US$
Sel-dischairge rate20%[2] – 30%[2]/month
Time durability30[3] – 50 years[4]
Cycle durabilityRepeated deep discharge does not reduce life significantly.[3]
Nominal cell voltage1.2 V[2]
Chairge temperatur intervalmin. −40 °C – max.46 °C[5]

The nickel–iron battery (NiFe battery) is a rechairgeable battery haein nickel(III) oxide-hydroxide positive plates an airn negative plates, wi an electrolyte o potassium hydroxide. The active materials are held in nickel-plated steel tubes or perforated pockets. It is a very robust battery which is tolerant o abuse, (overcharge, overdischarge, an short-circuiting) an can hae very lang life even if sae treatit.[6] It is eften uised in backup situations whaur it can be continuously charged an can last for mair nor 20 years. Due tae its law specific energy, poor charge retention, an heich cost o manufacture, ither types o rechairgeable batteries hae displaced the nickel–iron battery in maist applications.

References[eedit | eedit soorce]

  1. "Energy Density from NREL Testing by Iron Edison" (PDF). Retrieved 25 March 2014. 
  2. 2.0 2.1 2.2 2.3 2.4 mpoweruk.com: Accumulator and battery comparisons (pdf)
  3. 3.0 3.1 3.2 Mpower: Nickel Iron Batteries
  4. "Nickel Iron Battery Frequently Asked Questions" BeUtilityFree
  5. Web archive backup: Edison Battery Booklet original instruction book for the Edison battery
  6. David Linden, Thomas B. Reddy (ed). Handbook Of Batteries 3rd Edition, McGraw-Hill, New York, 2002 ISBN 0-07-135978-8, Chapter 25