Requirements for the wet metallurgy of vanadium used in vanadium batteries
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Vanadium batteries are among the outstanding green and environmentally friendly batteries with strong development momentum at present (their manufacturing, use, and disposal processes do not generate any harmful substances). They feature a special battery structure that enables discharge at high current densities at deep states of charge； Fast charging ； High specific energy ； Low price ； It has a wide range of application areas: for example, it can be used as a backup power source for buildings, airports, and program-controlled switching stations ； It can be used as an energy storage device to complement clean power generation systems such as solar power ； It provides power for submarines and ocean-going ships, as well as for peak shaving in power grids. Vanadium batteries impose new requirements on the wet metallurgy of vanadium; I wonder what methods are being used to remove impurities and ensure that the quality standards are met? Thank you!
It seems it’s not used very often these days... Lithium batteries are still the ones that are used more often
Large-scale energy storage projects (such as wind and solar power) generally still opt for vanadium batteries...
Which impurity ions need to be removed? I’m interested and want to study it.
Mostly things like Al, Si, Ca, Fe, and the like