Higher energy density, lower environmental impact, longer lifetime, orders of magnitude shorter charging time, less flammable, cheaper production, to name just a few of the futuristic goals of dozens of battery technology research labs. But the basic research is still going on.
Potassium compounds are mainly used to produce fertilisers. Many potassium salts are of great importance in industrial applications, including nitrate, carbonate, chloride, bromide, cyanide and sulphate. Potassium carbonate is used, for example, in the manufacture of glass, and potassium hydroxide is used to make detergents and liquid soap. Potassium chloride is used in medicines and in brine. The impressive list has just been extended to include electric vehicle batteries.
Competition is intensifying in the market for electrically powered air taxis. Although the first tests have barely started, major companies are stepping up their involvement and are placing orders for hundreds of units.
The California-based rocket backpack company has been developing the Speeder flying motorcycle for years, originally intended for military use and rescue missions, but now it has announced a recreational version of the vehicle, which the company expects to be available for purchase as early as 2023.
It started normally, someone, a scientist this time, bought some spinach at the grocery store, took it home, washed it and salted it a bit. The sequel is what turned out to be unusual in that the end result was not a weekend lunch but a battery.
The VT-30, officially released this year in May, is the first in EHang’s product suite that is designed for inter-city transportation. With a hybrid structure, VT-30 is designed to achieve a maximum balance of hybrid lift and push, which has the advantages of intelligent safety features, autonomous flying capabilities, cluster management, low noise and so on. The VT-30 is designed to carry two passengers, with a designed flight distance of 300km and a designed flight time of 100 minutes.