Iron-Air Battery

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QuantumScape Corp, a rechargeable batteries start-up supported by Volkswagen AG, is developing an “Iron-Air Battery” technology.

Highlights:

This technology has the potential to make car batteries less expensive, more dependable, and more suitable for faster charging.
QuantumScape Corp’s shareholders have approved a multimillion-dollar pay package for Chief Executive Officer Jagdeep Singh in exchange for meeting certain performance goals.
Iron–air rechargeable batteries are an appealing technology with grid-scale energy storage potential. 
This technology’s main raw material is iron oxide (rust), which is non-toxic, abundant, cheap, and environmentally friendly.
 The majority of iron batteries currently in development use iron oxide to generate or store hydrogen via a redox reaction.
The interplay of metal with oxygen generates power in iron-air batteries. In that procedure, the steel oxidizes in the same way it would during the corrosion phase. 
The reaction requires oxygen, which can be obtained from the ambient air. 
As a result, it eliminates the need for a cell to store it. When compared to lithium-ion batteries with 600wh/kg, iron-air batteries save even more energy.

Significance:

Since both ferrous and sodium are abundant, iron-air batteries are important. They are the fundamental components of alkali solutions.
 They have a lot of room to grow. They have a 30-year life expectancy. Fault current, overcharging, and discharge aren’t a problem for iron-oxygen batteries. 
In comparison to traditional power stations, a battery-powered iron-oxygen battery could provide 100 hours of energy at a low cost of operation.
When compared to the cost of lithium-ion batteries, it is less than a tenth. The energy density, reversibility, and environmental acceptability of these batteries have piqued interest.

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