| 摘要 |
The invention provides a process for preparing a crystalline vanadyl sulphate/vanadous sulphate material, the process including the steps of providing a mixture of vanadium pentoxide (V2O5) and vanadium trioxide (V2O3); adding to the mixture a predetermined volume of a sulphuric acid solution to produce a powder slurry; and heating the slurry at a temperature and for a time sufficient to form a crystalline vanadyl sulphate/vanadous sulphate material. The invention extends to a process for preparing an electrolyte from such a crystalline vanadyl/vanadous sulphate material, including the steps of dissolving the crystalline material in boiling water and adding a stabilising agent, typically phosphoric acid, to stabilise the electrolyte.
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