To improve the conductivity of nickel silicate as anode material of lithium ion batteries, nickel silicate nanosheets anchored on reduced graphene oxide composite is synthesized via hydrothermal method using sandwich-like silica/graphene oxide as raw material. Nickel silicate nanosheets anchor on both sides of the reduced graphene oxide and cross each other to form net-like structure. The thickness of the nanosheets is about 15 nm. The composite shows an optimal electrochemical performance as lithium ion battery anode material. The initial capacity is 1525.7 mAh g-1 and the capacity retains 815.5 mAh g-1 after 50 cycles at the current density of 50 mA g-1. It exhibits good rate performance. When the current density is increased to 5000 mA g-1, the average capacity is as high as 415.8 mAh g-1. The composite also demonstrates an exceptional high cycling stability with the capacity of 423.4 mAh g-1 after 1000 cycles.

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