Abstract:Although SnO 2 nanoparticles (NPs) can provide high specific capacities for sodium-ion batteries (SIBs), they are susceptible to rapid deterioration due to SnO 2 NP aggregation during charge−discharge cycles. Herein, we report a simple hydrothermal method to prepare SnO 2 NPs decorated on highly structurally connected carbon nanospheres (HS-CCNs) without or with nitrogen doping. SnO 2 /N-HS-CCN functioned admirably as an anode material for SIBs, with a reversible capacity of 294 mA h g −1 after 150 cycles at 0… Show more
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