How long do EV batteries last?

If this 1.8 percent annual degradation continued in a linear fashion, after 10 years an EV would still have 82 percent of its battery capacity, much more than the 70 percent most batteries are warrantied for after eight years. Dial that forward 20 years and the car would still have 64 percent.

Does a car battery last 8 years?

“You still generally have warranties that promise 70 percent state of health at eight years, but the degradation that we're seeing on those batteries is much less,” says Wallace. However, research so far has been based on how the car’s systems report the battery’s state of health.

How many cycles can a battery last?

It should also be noted that a cycle life of more than 10,000 cycles is already achievable for the shallow charge and discharge , . The cost of the battery needs to be reduced to less than $100 kWh −1 and the cost of the whole battery system (including the battery management system, BMS) reduced to less than $150 kWh −1.

What will be the future of battery technology?

Then there might be improved lithium-ion batteries, maybe using silicon anodes or rocksalt cathodes, for mid-range vehicles, or perhaps solid-state lithium batteries will take over that class. Then there might be LiS or even lithium–air cells for high-end cars — or flying taxis. But there’s a lot of work yet to be done.

Could a new technology help improve battery life?

The new discovery — which the scientists say was unintended and builds off novel electronics work — could be the foundation for better battery life across consumer devices such as laptops or smartphones, as well as more flexibility in grid-scale energy storage.

Could a better battery performance give a longer warranty?

This better battery performance could provide longer warranties for a higher remaining capacity. Toyota already offers a 10-year warranty on its EV batteries, and MG has been experimenting with a lifetime guarantee in Thailand.