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Lithium iron phosphate battery

From:CTECHI GROUP Limited     Release time:2019-04-17

Overview:Lithium iron phosphate as a 3.6V 2000mah Li-SOCl2 battery material has only appeared in recent years. The domestic development of large-capacity lithium iron phosphate batteries was in 2005. Its safety performance and cycle life are incomparable to other materials, which are the most important technical indicators of power batteries.

Lithium iron phosphate as a 3.6V 2000mah Li-SOCl2 battery material has only appeared in recent years. The domestic development of large-capacity lithium iron phosphate batteries was in 2005. Its safety performance and cycle life are incomparable to other materials, which are the most important technical indicators of power batteries. 1C charge and discharge cycle life of 2000 times. Single cell battery overcharge voltage 30V does not burn, puncture does not explode. Lithium iron phosphate cathode materials make large-capacity lithium-ion batteries easier to use in series to meet the needs of electric vehicles for frequent charging and discharging.

Lithium iron phosphate has the advantages of non-toxicity, no pollution, good safety performance, wide range of raw materials, low price and long service life. It is an ideal cathode material for a new generation of lithium ion batteries. Lithium iron phosphate batteries also have their disadvantages. For example, the lithium iron phosphate cathode material has a small tap density, and the volumetric lithium iron phosphate battery has a larger volume than a lithium ion battery such as lithium cobalt oxide, and thus has no advantage in terms of a micro battery.

Due to the inherent characteristics of lithium iron phosphate materials, the low temperature performance is determined to be inferior to other positive electrode materials such as lithium manganate. In general, for a single cell (note that it is a single cell instead of a battery pack, the measured low temperature performance may be slightly higher for the battery pack, which is related to the heat dissipation conditions), its capacity retention at 0 °C The rate is about 60 to 70%, 40 to 55% at -10 ° C, and 20 to 40% at -20 ° C. Such low temperature performance obviously cannot meet the requirements of the power source. At present, some manufacturers have improved the low temperature performance of lithium iron phosphate by improving the electrolyte system, improving the positive electrode formulation, improving the material properties and improving the design of the cell structure. If you want to learn more about Lithium Manganese Dioxide battery for digital cameras,you can contact us.


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