The MIT research team presented the results of a study suggesting the future of used rechargeable batteries applied to battery vehicles.
As the number of electric vehicles increases, the problem of what to do if the installed battery is old is faced. It’s easy to exchange new batteries, but it’s a waste of throwing away old batteries. On the other hand, it is said that making a new battery used for solar power generation is not profitable.
The research team has tested a number of economic scenarios and found that if the price drops below 60% compared to the new one, it can benefit from cost. However, there are still many technical problems. How to inspect used goods and how to keep multiple rechargeable batteries at the same level. In addition, it is necessary to continue verification in the long term, such as how to compromise with the cost of transporting separately from electric vehicles, and how long used goods will operate normally.
Anyway, a battery that is reused by solar power can be reborn by extracting the necessary materials. Germany’s Duesenfeld shatters battery-car batteries and separates them from precious materials such as graphite and ions, manganese, copper, aluminum, lithium, nickel and cobalt. Using this to produce a new lithium-ion battery. It is said that this can reduce carbon dioxide emissions by up to 40%. It is said that using 1 ton of waste rechargeable batteries corresponds to 4.8 tons of carbon dioxide.
It may be fate that the demand and supply of these two factors match up with solar power generation and electric vehicles, which are emerging as measures to prevent global warming and countermeasures against environmental problems. The research team reveals that there is a good chance that it will work both technically and economically. Related information can be found here .