In September 2020's edition of Recharge by Battery Materials Review, the Focus article is on the subject of incentive prices in lithium and nickel and we discuss the level that prices need to reach before it will be economic for producers to invest in new capacity.

We also include our usual recap of all the key news flow in global batteries and raw materials markets, as well as analysis of key developments.

Our interview this month is with Matt Harper of AIM-listed Invinity Energy Systems (AIM:IES), a vanadium redox flow battery (VRFB) producer. We discuss some of the key challenges and opportunities in the VRFB market and talk in detail about the outlook for Invinity.