Abstract
A rechargeable calcium battery consisting of a calcium metal anode, a cathode formed from a composite carbon/sulfur (C/S), a metal oxide, or a metal sulfide, and a multi-component electrolyte containing a mixture of different salts. The calcium anode is formed as a thin, pure calcium metal foil that is polished and combined with a copper collector for redox activity. The cathode may be formed from a carbon-sulfur (CS) composite or metal oxide/sulfide, such as CaMxOy or CaMxSy, or formed from binary and ternary metals, such as CaM1aM2bOy/Sy and CaM1aM2bM3cOy/Sy. The battery also includes a multi-component electrolyte including calcium salts, such as Ca(TSFI)2, Ca(ClO4)2, Ca(BF4)2, and CaPF6, or the pairing of lithium, sodium and potassium salts with one of the anions, such as Ca(TFSI), NaPF6, and Li(TFSI).
| Original language | English (US) |
|---|---|
| Priority date | 4/19/21 |
| Filing date | 4/19/22 |
| State | Published - Oct 20 2022 |
Keywords
- Battery
- Energy
- calcium batteries