Abstract
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High-quality anodes are very important for the future generations of rechargeable sodium-ion batteries (SIBs). Metal sulfides (MSs) as a promising anode have attract tremendous attentions and shown impressive results in terms of versatile material species, low-cost raw materials, and excellent electrochemical performance. In particular, the unique 2D few-layer structure of MSs provides a new view for overcoming some challenges appeared on anodic electrodes, such as volume change, structure collapse, high-rate capability, and confinement of phase-variation of MSs. Here, we review some of the recent scientific advances in 2D MSs, including the synthetic strategies, electronic structure, and electro-chemical performance on SIBs.