A new long-life electric car battery with a 1.5 million km warranty

China's gigantic battery making company, CATL (or, to give it its full title, the Contemporary Amperex Technology Co Limited) has announced a new type of battery which could spell the end of concerns about how long a vehicle battery might last. CATL's latest battery is warrantied for 1.5 million kilometres, and up to 15 years of operation. To put that in perspective, most electric cars currently on sale have warranties assuring customers that their batteries will not degrade past 70-80 per cent of their original energy capacity over eight years, or 160,000km. These new ultra-long-life batteries have been developed for…