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Why lithium-ion batteries will deteriorate


Lithium batteries’ degrading over time, is a problem arising from cycles of charging and discharging.In this cycle, lithium ions will penetrate the material to generate electricity.

Studies using electron microscopy have shown that each ion doing so produces a subtle change in the physical structure of the electrolyte.

This effect is just like “the surface of steel rusts not evenly”.High voltage and high temperature will accelerate the erosion rate.


This is exactly why Apple lets some models of iphone slow down to product the lithium battery.

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