1.Lithium iron phosphate battery

1-3.  The lithium iron phosphate battery is safer than traditional Li-ion battery, Why?
LiFePO4 or C-LiFePO4 is an intrinsically safer cathode material than LiCoO2 and manganese spinel. its olive structure changes slightly even under over charge condition; The lower +3 valence state in the charge cathode prevents oxygen release and no thermal runway, consequently, no oxygen evolution appears upon heating, no thermal runway under abusive conditions.  After assembled with carbon anode and liquid electrolyte, the system has the lowest intrinsic heat content per ampere hour of any known lithium ion system.

1-4.  Advantages of Power LiFePO₄ battery
(1) More power deliver (high charge and discharge current, discharge at 1C continuous, 3C pulse for normal cells);
(2) Wide operating temperature (-20~60℃), never explodes and remains stable even in 160℃;
(3) Good safety performance, its olive structure changes slightly even under over charge condition (3C/10V), no oxygen evolution appears upon heating, no thermal runway under abusive conditions.
(4) The cells with lithium iron phosphates cathode have long cycle life 、long application life. The capacity retains 93.7% of initial capacity after 1200 cycles at 0.5C/1C rate 100% DOD; when the temperature increases, more than 1000 full DOD cycles remain, which widens its application range.
(5) Totally environment-friendly (no lead or cadmium at all);
(6) LiFePo4 technology does not contain any heavy metals and does not exhibit the "memory effect" of Nickel-Cadmium (it can be recharged anytime, no reduction of the capacity)；
(7)High gravimetric energy density(1/2 size/weight of acid batteries, 70% size/weight of NiMH/NiCd batteries).

1-5.  Comparing LiFePO4 battery with other EV Batteries

2. Specifications

2-1.  Parameter of Power LiFePO4 battery (cell)

2-2.  LiFePO4 battery Packs series

3. Characteristics of Power LiFePO4 battery

Fig.1. Typical Charge-Discharge Curve At 0.2C Rate At 25℃


Fig.2. Typical Discharge Characteristics At different Rate At 25℃

Fig.1. is typical charge-discharge curve at 0.2C rate at 25℃, Fig.2. is typical discharge characteristics at different rate at 25℃;From the figures show that the battery has high plateau voltage, the plateau capacity is more than 90% total capacity; In addition, There is slight capacity loss at high discharge rate, which suggest our products can deliver high energy at high discharge rate.


Fig.3. Typical Discharge Curve At 0.2C Rate At different temperature

Fig.3. is typical discharge curve at 0.2C rate at different temperature, which suggests that our company products have wide operating temperature (-20~60℃), by the way, when the temperature arrives at 60℃, the discharge capacity increases almost 10%, while cycle life performance better than at room temperature, which is superior to LiMn2O4 battery.


Fig.4. Cycle Life Curve At 0.5C Rate At 25℃

Fig.4. is cycle life curve at 0.5C rate at 25℃, which tells us our products have long cycle life, discharge capacity retains more than 93.5% initial capacity (at 0.5Ccharge/1C discharge) after 1200 cycle times.

Fig.5. Overcharge Curve At 3C Rate In Potential Range Over 10V

Fig.5. is overcharge curve at 3C rate in potential range over 10V, the battery passed by the safety testing, no thermal runway、explosion and  burning appeared.

4.  Applications

1. Electric Vehicles: electric car、electric bus etc;
2. Electric Tools: electric bicycle、Electric Scooters etc;
3. Electric model toy: electric car model, electric plane model etc;
4. Solar energy storage devices;
5. UPS、safety lamp etc;
6. Substitute for primary cell in camera etc equipments;
7. Portable electric apparatus.