Interfacial Coupling SnSe₂ /SnSe Heterostructures as Long Cyclic Anodes of Lithium-Ion Battery.

ABSTRACT: Tin selenide (SnSe₂ ) is considered a promising anode of the lithium-ion battery because of its tunable interlayer space, abundant active sites, and high theoretical capacity. However, the low electronic conductivity and large volume variation during the charging/discharging processes inevitably result in inadequate specific capacity and inferior cyclic stability. Herein, a high-throughput wet chemical method to synthesize SnSe₂ /SnSe heterostructures is designed and used as anodes of lithium-ion batteries. The hierarchical nanoflower morphology of such heterostructures buffers the volume expansion, while the built-in electric field and metallic feature increase the charge transport capability. As expected, the superb specific capacity (≈911.4 mAh g^-1 at 0.

SUBMITTER: Feng W 

PROVIDER: S-EPMC9839860 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature