What are the performance characteristics of lithium iron phosphate?
by:Vglory 2021-03-11
The performance of lithium iron phosphate 1) The theoretical specific capacity of high energy density is 170mAh/g, and the actual specific capacity of the product can exceed 140mAh/g (0.2C, 25C); 2) The safety is currently the safest lithium battery cathode material; Contains any heavy metal elements harmful to the human body; 3) Long lifespan, under 100% DOD conditions, can be charged and discharged more than 2000 times; (Reason: the stability of the lithium iron phosphate lattice is good, and the influence of the insertion and extraction of lithium ions on the lattice It is not large, so it has good reversibility. The disadvantage is that the electrode ion conductivity is poor, which is not suitable for high-current charging and discharging, and is hindered in application. Solution: Cover the electrode surface with conductive material and doping to modify the electrode .) The service life of a lithium iron phosphate battery is closely related to its use temperature. If the use temperature is too low or too high, there will be great hidden dangers in the charging and discharging process and the use process. Especially used in electric vehicles in northern my country, in autumn and winter, the lithium iron phosphate battery cannot supply power normally or the power supply is too low, and its working environment temperature needs to be adjusted to maintain its performance. At present, the domestic solution to the constant temperature working environment of lithium iron phosphate batteries requires consideration of space limitations. The most common solution is to use aerogel felt as an insulation layer. 4) Charging performance The lithium battery with lithium iron phosphate cathode material can be charged at a high rate, and the battery can be fully charged within 1 hour at the fastest. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Which factors affect the cycle life of ternary lithium batteries?
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