TOKYO -- Car and parts makers are working to develop more sustainable batteries for electric vehicles, part of efforts to reduce total carbon emissions, trace the lifetime of their products and cope with tighter global regulations.
Industry works to lessen negative impact of everything from mining to recycling

Left to right: A charging cable is attached to a Nissan Leaf electric car. The cross-section of a completed Nissan Leaf battery. (Source photos by Reuters)
TOKYO -- Car and parts makers are working to develop more sustainable batteries for electric vehicles, part of efforts to reduce total carbon emissions, trace the lifetime of their products and cope with tighter global regulations.