LiFeP04 Sandia Report
Selected Test Results from the LiFeBatt Iron Phosphate Li-ion Battery...

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In this paper the performance of the LiFeBatt Li-ion cell was measured using a number of tests including capacity measurements, capacity as a function of temperature, ohmic resistance, spectral impedance, high power partial state of charge (PSOC) pulsed cycling, pulse power measurements, and an over-charge/voltage abuse test. The goal of this work was to evaluate the performance of the iron phosphate Liion battery technology for utility applications requiring frequent charges and discharges, such as voltage support, frequency regulation, and wind farm energy smoothing. Test results have indicated that the LiFeBatt battery technology can function up to a 10C1 discharge rate with minimal energy loss compared to the 1 h discharge rate (1C). The utility PSOC cycle test at up to the 4C1 pulse rate completed 8,394 PSOC pulsed cycles with a gradual loss in capacity of 10 to 15% depending on how the capacity loss is calculated. The majority of the capacity loss occurred during the initial 2,000 cycles, so it is projected that the LiFeBatt should PSOC cycle well beyond 8,394 cycles with less than 20% capacity loss. The DC ohmic resistance and AC spectral impedance measurements also indicate that there were only very small changes after cycling. Finally, at a 1C charge rate, the over charge/voltage abuse test resulted in the cell venting electrolyte at 110 °C after 30 minutes and then open-circuiting at 120 °C with no sparks, fire, or voltage across the cell...

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40138 - F1 (14Ah) CYLINDRICAL CELLS

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This is a quantum improvement on our original Green 10Ah cells that launched LiFeBATT three years ago.

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New Prismatic Cells

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Our Prismatic Cells are made in Taiwan and assembled into Battery packs here in the USA...

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LiFeBATT ADVANTAGES

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Any combination of our Plug & Play Packs can be used in series/parallel to build custom battery systems...

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LiFePO4 SMART FAST CHARGERS

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LiFeBATT has incorporated our unique charging algorithm into these intelligent Chargers and recommends them to insure our 3 Year Warranty.

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