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There are in general three types of batteries for stationary storage and E-Vehicles and E-Mobility, new systems are developed continuously. These lead-acid batteries are using liquids or gel and have been the common batteries to store current: It is only one of the many pilots from countless companies worldwide to store current based on Lithium-Ion-Batteries. Now the life-span of Lithium-Ion batteries is said to be lower than those of redox-flow-batteries http: Around 70 per cent of world wide Lithium comes from Chile, Argentina and Bolivia.
There is enormous demand worldwide for Lithium-Ion batteries, which are used world-wide for planes and E-mobility and for E-vehicles wirtschaft das ihk magazin fur munchen und oberbayern in buses and cars and in other devices. According to an engineer and owner of a specialised company in this field, the danger of these batteries does not come from the used chemicals: The problem for Tesla seems that they wirtschaft das ihk magazin fur munchen und oberbayern not secure delivery contracts for the planned huge amount which the huge factory would need each year: Worldwide in the last time only 50, tons were available.
Redox-Flow-Batteries based on a fluid: These Wet cell batteries or fluid batteries are a n interesting concept for stationary power storage — were larger capacities are not necessarily reflected in costs! These are not for E-vehicles — except possibly trucks — due to the excessive weight in relation to capacity: The new redox-flow-battery is neither flammable nor toxic.
The needed materials are cheap and available in quantities, not based on expensive Vanadium for example from Imergy Power Systems in USA. The batteries were developed wirtschaft das ihk magazin fur munchen und oberbayern storing wind or solar power.
Please see as well: They are regarded as almost indestructible, robust and not flammable with a far higher efficiency as well. It seems to be a topic of high interest, since an essential difference is that the capacity does not necessarily determine the price. But here really only the performance is important for the costs! At relatively low costs one can stand new larger tanks, were the fluid is stored and when demand increases even bigger tanks can be built.
These are for stationary storage, not for E-vehicles — due to the efficiency in relation to volume.