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Cars could soon be made out of plants instead of metal. Researchers in Sweden are working on a new car material made out of a wood-based carbon fiber.
The Royal Institute of Technology in Stockholm has created a car roof out of wood composite and a carbon fiber car battery made with lignin, an substance found in the cell walls of plants, according to Science Daily. Lignin is one of the earth’s most plentiful natural polymers.
Scientists are using it to both build exterior components of the car and conduct electricity in batteries. Using this technology, batteries can be made with leftover product from paper pulp mills. This means that car batteries (and cars themselves) could get a lot cheaper. Carbon fiber as it’s known today is highly expensive to produce and remains a material used exclusively in high-end cars.
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