Batteries Made From Plants?

Howie Jacobson's guest on Plant Yourself is Virginia Klausmeier, who founded and heads a climate tech company whose products could make a big difference in the quality of our futures.
Sylvatex (from “Sylva,” meaning woods or forest, and “tech” – so sustainable, nature-inspired technology) uses nanoparticle technology to make better batteries built from molecules sourced from plants, rather than minerals or petroleum. They are recyclable, producing much less waste than conventional batteries. They promise to last longer and run more efficiently, and cost a lot less.
So low-carbon batteries might just buy humankind the time to get our heads screwed on straight, and discover how to live in harmony with the natural world, instead of trying to control and exploit it.

https://plantyourself.com/batteries-plants-virginia-klausmeier-on-pyp/