Adden Energy, a startup based in Waltham, Massachusetts, has secured $5.15 million in licensing and funding to create a new, large-scale battery design for electric vehicles. It lasts for 20 years, and it could be coming soon for new cars.
And according to the British newspaper “Daily Mail”, the battery, which was developed by Harvard University scientists, is lithium metal, not the lithium ion found in electric vehicles already on the market.
Inspired by the BLT sandwich, its intricate design prevents the growth and shortening of the lifespan of annoying “dendrites” that grow in lithium-metal batteries.
Electric vehicles currently have lithium-ion batteries that degrade over time and last up to seven or eight years, depending on how much you use them, just like a smartphone battery.
These lithium-ion batteries can be replaced, but can cost thousands of pounds, which means drivers are often better off buying an all-new electric car.
But this new solid-state lithium-metal battery can extend the life of electric vehicles to a length similar to that of petrol and diesel vehicles up to 20 years without ever having to replace the battery during that time.
The team’s prototype battery achieved rapid battery charging rates of up to three minutes with more than 10,000 life cycles, as Shen Li and colleagues at Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) pioneered the new technology.
Adden Energy was founded in 2021 by Li, along with William Fitzhugh and Luhan Ye, both of whom helped advance the technology as graduate students at Li’s Harvard lab.
The startup aims to expand the battery to a palm-sized “pod cell”, which contains components encapsulated in an aluminum-coated membrane, and then toward a full-size composite battery in the next three to five years.