LiFePO4 was developed by John Goodenough's research group at the University of Texas in 1997.

LiFePO4 is an intrinsically safer cathode material than any other Li-ion chemistry. The Fe-P-O bond is stronger than the CoO bond so that when abused, (short-circuited, overheated, etc.) the oxygen atoms are much harder to remove. This stabilization of the redox energies also helps fast ion migration. Only under extreme heating (generally over 800 °C) does breakdown occur, which prevents the thermal runaway that all other Li-ion chemistries are prone to.

The fully lithiated and unlithiated states of LiFePO4 are structurally similar, which means that LiFePO4 cells are more structurally stable than Li-ion cells. No lithium remains in the cathode of a fully charged LiFePO4 cell, in a LiCoO2 cell, approximately 50% remains in the cathode. LiFePO4 is highly resilient during oxygen loss, which typically results in an exothermic reaction in other lithium cells.

UN Testing has confirmed that during short circuit, vibration, thermal, shock, impact, overchange and forced discharge, our cells did not suffer any fire or explosion incidents and have been classified "NOT RESTRICTED" under the IATA special provision of A45 and are safe for air travel.

Independent Testing - Sandia National Laboratories, New Mexico, USA. We have not paid Sandia to test our product, Sandia are funded by the US Government and operate a testing regimen in the public interest. This text below is their official statement:

Sandia LabsTHREE LIFEBATT CELLS HAVE BEEN UNDER TEST AT SANDIA NATIONAL LABORATORIES SINCE NOVEMBER,2007. A NUMBER OF TESTS HAVE BEEN CONDUCTED THAT INCLUDE CAPACITY, OHMC RESISTANCE, AC IMPEDANCE, OVER CHARGE/VOLTAGE, TEMPERATURE PERFORMANCE, AND PARTIAL STATE OF CHARGE CYCLING FOR UTILITY APPLICATIONS. ONE CELL IS STILL BEING TESTED UNDER THE UTILITY CYCLING PROFILE AT 20 OR 40 AMPS CHARGE AND DISCHARGE AT A 10% PARTIAL STATE OF CHARGE CYCLE. THIS CYCLING HAS BEEN UNDERWAY FOR 3 MONTHS. LOOK FOR A LINK SOON TO THE FINAL REPORT COMING IN APRIL ON SANDIA'S WEBSITE.

LiFeBATT 40138F1 Cell

LiFeBATT cells are NEW on the market and developed specifically for Electric Vehicle and large format applications. Our cell format is 40138 LiFePO4. They are manufactured by our own factory in Taipei, Taiwan. Our factory manufactures the raw cells using high grade Lithium cathode materials manufactured by Phostech Lithium. We are fully licensed by the patent holder Phostech Lithium Inc, Canada.

We have tested cell's to 2,800 cycles at 100% depth of discharge. These cells are still operating within specification at 85% of original capacity.

LiFeBATT 40138 Cell Specification

Nominal Capacity -
Minimum Capacity -
Charging Voltage -
Typical Voltage -
Cut-off Discharge Voltage -
Charging Method -
Maximum Discharge Current -
Maximum Discharge Current -
Maximum Charge Current -
Cycle Life -
Charge Temperature Range -
Discharge Temperature Range -
Short Period Storage Temperature -
Long Period Storage Temperature -
Gravimetric -
Volumetric -
Power Density -
Gravimetric -
Volumetric -
Initial Internal Impedance -
10000 mAh
9000 mAh
3.65 V
3.30 V
2.10 V
CC/CV
120A (12C Continuous)
140A (14C for 18 second pulse)
30A (3C)
1,500 cycles (minimum)
0 ~ 45 (degrees centigrade)
-10~55 (degrees centigrade)
-10~45 (1 month)
0~35 (6 month)
>80 Wh/Kg
>170Wh/L
(100% SOC, 18s peak)
>600 W/Kg
>1230 W/L
<6 mOhm


Full discharge curves to follow in April 2008.