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How a lithium-ion battery works | by Argonne National Laboratory
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How a lithium-ion battery works

This illustration shows the inner workings of a lithium-ion battery.


When delivering energy to a device, the lithium ion moves from the anode to the cathode. The ion moves in reverse when recharging.


Compared to other rechargeable batteries, lithium-ion batteries can store more energy in smaller, lighter packages. This unsurpassed energy-to-weight ratio make them the battery of choice for consumer electronics like cell phones and laptops, but also a great fit for electrified vehicles.


Illustration courtesy Argonne National Laboratory.

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Taken on September 27, 2010