[sportrider - latest stories] - Lithium-Ion vs. Lithium-Iron Batteries | Ask the Geek

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Lithium-Ion vs. Lithium-Iron Batteries | Ask the Geek

A lithium-iron battery is a particular type of lithium-ion battery, and does not have the same problems with thermal overrun as the lithium-ion batteries found in laptops and other consumer devices sometimes do.I saw in the May issue that you are testing the Antigravity lithium-iron Battery in the Yamaha R1. I also saw, on the next page, the Shorai LFX lithium-iron Battery. I am not familiar with the qualities of the lithium-iron. However, lithium-ion batteries can and do catch fire if they get to thermal overrun. In brief, if the lithium-ion gets to about 350 degrees Fahrenheit, it will run away. Many bike batteries are housed near hot exhaust. It would not be unreasonable for a battery — given internal heat from charging, a hot day or being stuck in traffic — to reach this temperature. I was wondering if there is some characteristic of the Li-Fe battery that would prevent a thermal runaway? Saving weight is great — but not if the ride catches fire.
Tim Berridge


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