KFSI (Sodium Bis(fluorosulfonyl)imide, 99.9%) Powder as Electrolyte Salt for Potassium-Ion Battery, 25 g/bottle, CPIBESKFSI
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KFSI (Sodium Bis(fluorosulfonyl)imide, 99.9%) is one of the most widely used electrolyte salt in potassium-ion batteries (PIBs). The primary function of KFSI is to serve as a conductive medium that allows the reversible transport of K+ ions between the anode and the cathode during charging and discharging, as well as its features of high ionic conductivity, wide electrochemical window, and high quality of SEI Formation.
| Part Number |
CPIBESKFSI (C-PIB-ES-KFSI) |
| Chemical Formula |
F₂KNO₄S₂  |
| Appearance |
White Powder |
| Purity |
99.9% (Battery Grade) |
| Molecular Weight | 219.23 g/mol |
| Melting Point | 102 °C |
| Package Size | 25 g/bottle |
Notes: Please store the KFSI powder in the glovebox due to its sensitivity to humidity and oxygen
References:
- P. Pham, et al. Potassium-ion batteries using KFSI/DME electrolytes: Implications of cation solvation on the K+-graphite (co-)intercalation mechanism, Energy Storage Materials, 2022, 45, 291-300.
- L. Deng, et al. Influence of KPF6 and KFSI on the Performance of Anode Materials for Potassium-Ion Batteries: A Case Study of MoS2, ACS Appl. Mater. Interfaces 2019, 11, 25, 22449–22456.