Last updated October 19, 2017 at 1:50 pm
Follow Rhys on a typical day as he tries to solve the issue of solar energy storage using his knowledge of chemicals and experimenting to find out if his predictions are cost effective and actually practical in the modern world. He explains how his enjoyment of maths and science in school was key to pursuing this as a career, and how he hopes to make a difference by wean us off non-renewable energy sources and helping to combat climate change.
Find out about more STEM careers via the Working In……series here