Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11262960 | Applied Surface Science | 2019 | 15 Pages |
Abstract
Herein, we study the effects of phosphorus-embedding on the surface morphology, surface chemical/electrical microstructure, and electrochemical performance of tin sulfides anodes fabricated by a high-energy ball mill method (HEBM) for lithium-ion battery (LiB). Specifically, phosphorus-embedding into SnS2 enlarges the lattice spacing of the major phases of tin phosphides, which facilitates lithiation and delithiation on the surface. The tin phosphorus sulfide anodes show higher electrochemical LiB performances than a pristine SnS2 electrode. Among the four SnPnS2 (nâ¯=â¯0.2, 0.4, 0.6, and 0.8) anodes, the SnP0.6S2 anode exhibits the highest discharge capacity of 404 mAh gâ1 at the 200th cycle (@ 500â¯mAâ¯gâ1) and capacity retention of 84% after 200 cycles.
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Authors
Hongsuk Choi, Seungmin Lee, KwangSup Eom,