Battery tech

However, well over a dozen potential battery technologies are vying for the title of the Next Big Thing. Some of these technologies, such as the urine battery and the portabella mushroom battery, aren’t reaching for the mass market. But the one (or more) have the potential to be used by those who need to spark up their cell phone, laptop computer, or electric car—in short, almost everyone.
Suffice to say, whoever captures even a sliver of this market will be printing money. Real money, like pounds before Brexit, instead of watered-down money, like pounds after Brexit.
Want to see what’s coming? These potential energy solutions aren’t ready for production systems yet, but they show lots of promise.

https://insights.hpe.com/articles/three-batteries-that-could-power-our-future-1705.html