Patel, S and Sampath, S (2022) High Performance, Stoichiometric ZnSnP2 Anode for Rechargeable Lithium-Ion Battery with Concomitant Conversion from Chalcopyrite to Sphalerite Phase. In: Batteries and Supercaps .
Full text not available from this repository.Abstract
Herein, we report chalcopyrite phase of zinc tin phosphide (ZnSnP2) as an anode for high rate, rechargeable, lithium-ion battery. In-situ Raman spectroscopy reveals the conversion of chalcopyrite phase of ZnSnP2 to a symmetric sphalerite phase upon cycling, which helps in achieving stable and reversible capacity at high discharge rates. This is due to the low bandgap and high conductivity of the sphalerite phase. The in-situ phase conversion is extremely important as it is difficult to synthesize bulk ZnSnP2 sphalerite phase by the known methods till date. After full phase conversion, a reversible capacity of 750 mAh g−1 is obtained towards the end of 1700 cycles at a rate of 5 A g−1. Full cell assembled using LiCoO2 as the cathode material yields a stable performance with a discharge capacity of around 500 mAh g−1 at 0.5 A g−1 and the rate capability studies demonstrate reversible capacities up to 15 A g−1 current.
| Item Type: | Journal Article |
|---|---|
| Publication: | Batteries and Supercaps |
| Publisher: | John Wiley and Sons Inc |
| Additional Information: | The copyright for this article belongs to the John Wiley and Sons Inc. |
| Keywords: | Anodes; Cathodes; Cobalt compounds; Copper compounds; Indium compounds; Ions; Lithium compounds; Lithium-ion batteries; Manganese compounds; Phosphorus compounds; Raman spectroscopy; Zinc sulfide, Chalcopyrite; Discharge rates; High rate; In-situ Raman spectroscopy; Performance; Phase conversion; Rechargeable lithium ion battery; Reversible capacity; Sphalerite; Symmetrics, Tin compounds |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 06 Jun 2022 05:15 |
| Last Modified: | 06 Jun 2022 05:16 |
| URI: | https://eprints.iisc.ac.in/id/eprint/73134 |
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