New materials may be soon making electric car batteries lighter than ever. Specifically, carbon nanotubes and grapheme that are made out of man-made carbon dioxide are the two main new scientific discoveries that should help battery makers cut weight. Carbon nanotubes are amazing being constructed out of single-atom thick sheets that have been formed into cylinders. These tubes are then interwoven into a strong and lightweight substance called Aerographite. Some say this is the lightest man-created material ever made.

The better battery makers are able to make use of these new materials, the lighter the batteries will become.

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