Everyone is always talking about Tesla and Nio in the electric vehicle space, but one of my favourite electric vehicle (and battery) companies is BYD. They are HUGE. Well worth having a bit of a Google around - especially YouTube for more information on them to see some of their cars and how they compare.
You can find BYD directly on the HK exchange via HKEX:1211 or on the US exchange via OTC:BYDDF or OTC:BYDDY (no one I've found understands the difference between these two in terms of which is best to buy).