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Maroc Maroc - TECHXPLORE.COM - RSS news feed - 19/Jan 19:16

A simple coating that makes high-energy Li-ion batteries last longer

Silicon is an attractive negative electrode (anode) material for future lithium-ion batteries because it can store much more energy than the graphite used today. However, silicon expands and shrinks dramatically during charging and discharging. This repeated swelling causes the battery electrodes to crack, lose contact internally, and degrade quickly, which severely limits battery lifetime and safety.

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