Batteries for electric vehicles – a revolution due to … coffee grounds

A popular stimulating drink can also be used to power electrical devices, according to the announcement of researchers from the University of Indonesia in Depok.

Indonesia is one of the largest coffee producers in the world, and scientists have thought about ways to use the raw material used. They have developed a method to convert ground coffee into graphene, which they then add to the negative electrode on the battery to increase its capacity.

The leader of the team of scientists, prof. Anne Zulfia Syahrial told CNA that the battery they developed was a lithium-titanate-oxide (LTO) battery. Such batteries are more stable than most lithium-ion batteries currently used in electric vehicles, but have a lower capacity per weight.

– That is why we tried to mix tin or silicon and activated carbon from coconut shell waste into the material. We also recycle used coffee and even plastic waste into graphene, which is also mixed with LTO, Syahrial said.

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LTO batteries can be much lighter and recharge much faster than lithium-ion batteries with graphite anodes commonly used in electric vehicles today, said another team member Bambang Priyono.

According to CNA, the weight of an average battery used in vehicles is around 500 kg, and the LTO battery could be 200 kg lighter, which would also increase the range of the vehicle. The battery, developed by scientists at the University of Indonesia, charges in 30 minutes, and the researchers want to cut that time by half more, added the Singaporean station.


About Eric Wilson

The variety offered by video games never ceases to amaze him. He loves OutRun's drifting as well as the contemplative walks of Dear Esther. Immersing himself in other worlds is an incomparable feeling for him: he understood it by playing for the first time in Shenmue.

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