Yichen Shi is the co-founder and CEO of Eleven Energy, a Cambridge-based company pioneering sodium-ion home battery systems. Eleven has launched the UK’s first fully integrated sodium-ion battery and hybrid inverter with smart energy management software, designed for residential use and to operate reliably in all climates. Yichen is committed to making clean energy storage safer, more sustainable, and locally supported, offering a real alternative to lithium-ion technology.