With oil prices surging, there's a sense of greater urgency about moving more towards electric vehicles. But of course the metals that go into EVs are also expensive. And that goes for the core technology -- lithium ion batteries. On this episode of the podcast, we speak with James Frith, a lithium battery expert and investor at the VC firm Volta Energy Technologies. We discuss the state of the art of battery technology, as well as the ongoing need for commodities.