LONDON -- Solid state batteries could cut the carbon footprint of electric-vehicle batteries compared with today's liquid lithium-ion batteries, especially if sustainably sourced materials are used, the Transport and Environment (T&E) campaign group said in a statement.
Based on a comparison of one of the most promising solid-state batteries to lithium-ion technology and using sustainable lithium sources, a battery's carbon footprint could be cut by as much as 39 percent, T&E said on Tuesday.
The European climate group called for incentives to cut the carbon footprint in new EV battery regulations being finalized by the European parliament and European Union member states.