Abstract
A facile chemical bath deposition (CBD) approach has been developed to fabricating SnS2 nanowall (NW) arrays directly on copper foils. As an anode material for lithium ion battery, the NW arrays exhibit enhanced lithium ion storage property. At a rate of 0.3C, the NW arrays maintain a capacity of about 700mAh g−1 after 40 cycles. Even at a high rate of 1.2C, the NW arrays can still deliver a stable capacity of 400mAh g−1. The high electrochemical performance is well related to the in situ growth of uniform SnS2 nanostructures on a conductive copper current collector, which results in a robust adhesion for the SnS2 NW on the copper, and leads to an enhanced electron conductivity, improved lithium ion transport, and sustained volume variations.
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