Nickel–iron battery
Type of rechargeable battery / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Nickel-iron battery?
Summarize this article for a 10 year old
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. It is a very robust battery which is tolerant of abuse, (overcharge, overdischarge, and short-circuiting) and can have very long life even if so treated.[7] It is often used in backup situations where it can be continuously charged and can last for more than 20 years. Due to its low specific energy, poor charge retention, and high cost of manufacture, other types of rechargeable batteries have displaced the nickel–iron battery in most applications.[8]
Specific energy | 19-25[1] Wh/kg |
---|---|
Energy density | 30[2] Wh/L |
Specific power | 100[3] W/kg |
Charge/discharge efficiency | <65%[4] |
Energy/consumer-price | 1.5[2] – 6.6[3] Wh/US$ |
Self-discharge rate | 20%[2][3] – 30%[3]/month |
Time durability | 30[4] – 50 years[2][5] |
Cycle durability | Repeated deep discharge does not reduce life significantly.[2][4] |
Nominal cell voltage | 1.2 V[3] |
Charge temperature interval | min. −40 °C – max.46 °C[6] |