Batteries are an essential part of modern life.
Your car, mobile phone, laptop, and camera wouldn't exist without them.
And researchers around the world are constantly working to make them better.
That includes a team at the HZB Institute for Soft Matter and Functional Materials, which is part of the Institut Laue-Langevin in Grenoble, France.
They've been looking at the materials we use to make batteries and trying to figure out if there are better alternatives.
However, it can only absorb a limited number of ions before hitting capacity.