New type of batteries can become a significant driver driver electric vehicles

10 октября, 2021 от arto Выкл

One of the deterrent factors in the development of electric vehicles are batteries. And although in the last decade, significant progress has been made, still modern batteries have a lot of weak points.

The main shortcomings of the lithium-ion battery are considered:

❌ Relative high costs

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❌ explosion hazard if the body is damaged by a puncture or other disruption of tightness

❌ Dependence of the service life of time, and not on the number of discharge cycles, which leads to loss of container.

There is no doubt if the industry could have been able to offer a battery at a reasonable price, which, on the one hand, has a long service life, and on the other, it is able to quickly charge, it would become a significant driver of the electric vehicle market.

One of the possible solutions is the use of a solid-state lithium-metal battery instead of traditional lithium-ion.

His advantages are

✅ Low cost (if there are suitable inexpensive parts of lithium metal batteries can cost $ 100 per kilowatt hour)

✅ Safety in use (in the battery between the anode and cathode there are various materials of different stability, they do not give dendrites of lithium to break the barrier, separating the anode and cathode, and cause a short circuit or even the fire of the battery)

✅ Contains a much larger amount of energy in a similar amount

✅ Fast charging.

Associate Professor Department of Materials Science Harvard School of Engineering and Applied Sciences. John A. Poleson (Seas) Xin Lee says that the research spent has proven — a solid-state battery can be fundamentally different from today’s commercially used lithium-ion batteries, and is able to provide the characteristics of a new level.

Lee and his team argue that they developed a solid-state lithium-metal battery, which withstands at least 10 thousand charge-discharge cycles, while charging at high current density for 10-20 minutes. The life of such a battery can be from 10 to 15 years — i.e. In most cases, this means that the replacement of batteries will not be required throughout the life of the car.

Material is provided by analysts NTI «AutoNet»