Lithium iron phosphate battery

Lithium Iron Phosphate Battery

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Lithium iron phosphate battery

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Description:
The lithium iron phosphate (LiFePO<sub>4</sub>) battery, also called LFP battery, is a type of rechargeable battery, specifically a lithium ion battery, which uses LiFePO<sub>4</sub> as a cathode material.

History

LiFePO<sub>4</sub> was discovered by John Goodenough's research group at the University of Texas in 1996,: A Novel Cathode Material for Rechargeable Batteries", A.K. Padhi, K.S. Nanjundaswamy, J.B. Goodenough, Electrochimical Society Meeting Abstracts, 96-1, May, 1996, pp 73 as a cathode material for rechargeable lithium batteries. Because of its low cost, non-toxicity, the high abundance of iron, its excellent thermal stability, safety characteristics, good electrochemical performance, and high specific capacity (170 mA┬Ěh/g, or 610&nbsp;C/g) it gained some market acceptance.

The key barrier to commercialization was its intrinsically low electrical conductivity. This problem, however, was then overcome partly by reducing the particle size and effectively coating the LiFePO<sub>4</sub> particles with conductive materials such as carbon, and partly by employing the doping approaches developed by Yet-Ming Chiang and his...
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