Novel copolymer binder extends the life of lithium-ion batteries
Green Car Congress
MARCH 8, 2021
One of the major causes for the drop in capacity over time in Li-ion batteries is the degradation of the widely used graphite anodes. One of the major challenges for graphite anodes is the exfoliation of the graphite framework on deep cycling at a fast current rate. Graphite thus requires a binder to prevent it from falling apart with use. The most widely adopted binder today, poly(vinylidene fluoride) (PVDF), has drawbacks that render it far from an ideal material.
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