https://www.reuters.com/article/us-general-motors-electric-vehicles-batt/gm-offers-clues-to-technology-aimed-at-slashing-ev-battery-costs-idUSKBN2BU39B

General Motors Co is testing a variety of battery chemistries, technologies and manufacturing processes aimed at slashing the cost of future electric vehicle batteries and reducing its dependence on such price-sensitive metals as cobalt, President Mark Reuss said on Wednesday.