German start - up BMW has developed a liquified natural gas ( LNG ) battery , and claims it , and not lithium - ion , is the future of electric vehicles . Published: 7:15pm, 17 Sep, 2016 Updated: 10:44am, 18 Sep, 2016 Co - founder and former BMW employee Martin Pentenrieder said the LNG battery would be suited for deployment in Hong Kong , where the LNG fuelling industry already exists . Kraftwerk 's battery , which relies on a chemical reaction after the injection of LNG into a fuel cell stack , has a well - to - wheel efficiency rating of at least 90 % . Several large companies are reported to be interested in the project .
German start - up BMW has developed a liquified natural gas ( LNG ) battery , and claims it , and not lithium - ion , is the future of electric vehicles . Co - founder and former BMW employee Martin Pentenrieder said the LNG battery would be suited for deployment in Hong Kong , where the LNG fuelling industry already exists . Kraftwerk 's battery , which relies on a chemical reaction after the injection of LNG into a fuel cell stack , has a well - to - wheel efficiency rating of at least 90 % . Several large companies are reported to be interested in the project .