- Harvard researchers have created a battery for EVs that can charge 0-100 in just 3 minutes.
- The company has now been granted a technology license to scale
lithium metal batterytechnology for commercial application.
- Currently, replacing EV batteries costs up to ₹5.50 lakh to ₹6.20 lakh.
Massachusetts-based and Harvard-backed start-up Adden Energy has developed a battery for EV cars that can be fully charged in three minutes and has a lifespan of about 20 years, which is more than double the current EV batteries. .
The technology used in EV batteries has been licensed exclusively by Harvard’s Office of Technology Development. The startup has also received $5.15 million in funding from Primavera Capital Group, along with Rhapsody Venture Partners and MassVentures.
The new battery is made of lithium metal, instead of lithium-ion found in EV cars. According to researchers, the battery has an intricate design inspired by a BLT sandwich, which prevents the growth of dendrites growing in lithium metal batteries and shortens their lifespan. This BLT design prevents the penetration of lithium dendrites by containing and controlling them.
The battery is also self-healing, meaning the design and chemistry ensure that gaps created by dendrites are filled.
Now, Adden Energy will further develop the technology as they have achieved 5,000 to 10,000 charge cycles in a battery’s lifetime, compared to 2,000 to 3,000 charge cycles of traditional EV batteries.
Lithium Ion vs Lithium Metal Batteries
Currently, EV cars with lithium-ion batteries degrade over time and last 7 to 8 years, similar to smartphone batteries. Lithium-ion batteries can be replaced, but the cost is higher (
₹5.50 Lakh to ₹6.20 Lakh in India).
This new technology was developed by Xin Li and colleagues at the Harvard John A. Paulson School of Engineering and Applied Science.
Adden Energy was co-founded in 2021 by William Fitzhugh and Xin Li, both of whom contributed to the development of the technology as Harvard lab graduate students.
The benefits of lithium metal batteries hold significantly more energy in the same volume and charge. They are also not prone to forming small dendrites or rigid tree-like structures that contribute to battery failure. The new EV battery has a high energy density and a degree of material stability that overcomes the safety challenges faced by some other lithium batteries.
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