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In this work, few-layer structured graphene-like m-SnS 2 −SnO 2 /C materials were synthesized successfully with a facile hydrothermal reaction followed by heat treatment in an Ar atmosphere. In these materials, a SnS 2 −SnO 2 heterostructure modified with a carbon coating (SnS 2 −SnO 2 /C) has been fabricated, and their electrochemical performance as a cathode catalyst for aprotic electrolyte Li−O 2 batteries was evaluated and comparatively investigated. It was shown that the battery with 225-SnS 2 −SnO 2 /C in the cathode delivers the best performance. This work added a new promising index to the dictionary for developing highperformance cathode catalysts of Li−O 2 batteries.

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