Uniform implantation of ultrafine Cu2S nanoparticles into carbon nanowires for efficient potassium-ion battery anodes

Owing to their high capacities and abundant resources, transition metal sulfides (TMSs) have been proven attractive anode materials for potassium-ion (K-ion) batteries. Nevertheless, TMSs are usually limited by poor electrical conductivity and large volume expansion, leading to structural instabilit...

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