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Practical applications of high‐capacity silicon anodes face significant challenges due to the huge volume change during the lithiation/delithiation process and the relatively low intrinsic electrical conductivity. J. Chen and co‐workers report on page 758 a multilayered Si/reduced graphene oxide anode that offers superior reversible specific capacity, rate capability, and cycling performance.
Multilayered Si/RGO anode nanostructures, featuring alternating Si nanoparticle (NP) and RGO layers, good mechanical stability, and high electrical conductivity, allow Si NPs to easily expand between RGO layers, thereby leading to high reversible capacity up to 2300 mAh g−1 at 0.05 C (120 mA g−1) and 87% capacity retention (up to 630 mAh g−1) at 10 C after 152 cycles.
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