Enhanced Li+ storage through highly hybridized networks of self-assembled SnS2/rGO aerogels.

It is believed that the construction of a well-hybridized and nanoscale SnS 2 -rGO interconnection would make Li+ diffusion distance shorter, cycle performance stable and high-rate property remarkable application in the LIBs anodes. Here, a novel SnS 2 /rGO aerogel with ultrathin SnS 2 nanosheets, well-hybridized networks, and desirable covalent-bonded interconnection was successfully prepared by a modified one-step hydrothermal method. The aerogels were used for anode of lithium-ion batteries (LIB), and exhibited a remarkable electrochemical performance, including an ultra-high initial specific capacity (1682 mAh g−1), excellent rate performance (474 mAh g−1 at the rate of 10 A g−1), and perfect cycle stability (1388.4 mAh g−1 after 100 cycles at 0.1 A g−1), superior to those of previous reports. It is obvious that the aerogel's well-hybridized and covalent-bonded networks, super stable and intact structure, and improved electron conductivity would play a very important role during charging/discharging of the improved Li+ transportation. Therefore, the SnS 2 /rGO aerogel materials created by us would be a very promising candidate for future advanced lithium-storage-type power sources. • Well-hybridizing SnS 2 /rGO aerogels were prepared via a modified hydrothermal method. • Desired rGO networks were well-bonded with interconnected ultrathin SnS 2 nanosheets. • SnS 2 /rGO hybrids for LIB's anodes exhibit highly specific capacity of 1682 mAh·g−1. • SnS 2 /rGO anodes maintained capacity of 1388.4 mAh·g−1 at 0.1 A g−1 after 100 cycles. • SnS 2 /rGO anodes also showed excellent rate property of 474 mAh·g−1 at high 10 A g−1. [ABSTRACT FROM AUTHOR]