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Crystal salt formation in Li Po cells

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Crystal salt formation in Li Po cells

Old 02-25-2006, 12:57 AM
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Default Crystal salt formation in Li Po cells

Originally Posted by Buffaloman 16
I am fairly new to electric flying and lipoly batery,s but here goes. What if any is crystal stratification in lipoly ? Is it something to be concerned about ? if so can it be elimated ? Are there chargers on the market now that will eliminate this ? or something in the future ? Thank You
Sulphating applies to lead acid. The ultimate failure mode for Li Pos is crystal salt formation. At FMA/Kokam cell failure modes and effects are studied very carefully and charge and discharge controls and protective products such as IMPAD and the temperature indicators are provided to help overcome those effects. For example, a frequent post in the forums is " I put my pack away for XX days and , when I went to use it, the center cell had swelled. This happens because the crystal formation began during operation because of a dent, pressure on the cell, over temp, overload or just cell wear-out that stsrted crystal formation. The rotten thing is , once started, it continues al by itself even sitting on the shelf.

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