LiFePO4 Powder Raw Materials For Lithium ion Battery Producing

Main application: Is the positive active material of the power battery. Mainly used for energy storage/electric tools/light electric vehicle/miner's lamp/mobile power and so on.

Main characteristics:

1.    High energy density, Its theoretical specific capacity is 170 mAh/g, Actual product specific capacity can be more than 140 mAh/g (0.2 C, 25 ° C);

2.      High security, is the safety of lithium ion battery cathode material; Do not contain any harmful heavy metals;

3.   long life: In 100% DOD (depth of discharge) conditions, can charge and discharge more than 2000 times;(reason: lithium iron phosphate lattice stability is good, the lithium ions embedded and emergence of lattice impact is not big, so it has good reversibility. The deficiencies are ionic conductivity electrode is poor, not suitable for large current charge and discharge, stuck in applications. Solution: in the electrode coating on the surface of conductive material, doped modified electrode. )

The service life of the lithium iron phosphate battery with temperature, temperature too low or too high in the charging and discharging process and use process produce greatly bad hidden trouble. Electric cars use especially in northern China, in the fall and winter normal power supply of the lithium iron phosphate batteries or power supply is too low, need to adjust its working environment temperature to maintain its performance. At present, the domestic solve the lithium iron phosphate battery temperature working environment should be considered space limitations, the common solution is to use the aerogel blanket as a thermal insulation layer.

Item		Unit	Test results	Test method
Appearance		N.A	No agglomeration	visual inspection
Tap density		g/cm3	1.132	Contador tap density tester
Resistance		Ω.cm	114.9	Mitsubishi electric conductivity tester
Particle size	D10	um	0.549	MASTERSIZER2000 refractive index 1.84% absorptivity 0.1%
	D50	um	1.508
	D90	um	6.010
Carbon		%	1.29	High frequency infrared carbon sulfur instrument
Specific surface area		M2/g	12.21	ST-08 SSA TESTING
PH		N.A	8.92	PH tester
Moisture		PPM	1043.0	Karl-Fisher Moisture analyzer
First discharge efficiency		%	97.5	Half cell
First capacity		mAh/g	155.5