Trees may help power your next electric car

[UK Sentinel]

Interesting article I read yesterday.

No, we’re not reverting to steam power – lignin just makes great cathodes

A Swedish-Finnish commercial partnership could be the first step toward commercially viable wood-derived batteries for electric vehicles.

Swedish battery maker Northvolt has signed a joint development agreement with Swedish-Finnish paper products company Stora Enso that lays out how the pair will work to develop batteries made with lignin, a resource Stora Enso has access to in abundance.

Lignins are a class of organic polymers derived from the cell walls of plants that grow on dry land, which acts as a binding agent. According to a statements from Northvolt and Stora Enso, trees are composed of 20 to 30 percent lignin, making them one of the “biggest renewable sources of carbon anywhere.”

Stora Enso says it has the technology to turn lignin into a hard-carbon material called Lignode, which will be used as the anode material in the new batteries. Anodes are the portion of the battery that releases electrons, as Reg readers may know, while cathodes are the portion of the battery that absorbs them.

https://www.theregister.com/2022/07/22/lignin_battery_northvolt/

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