Second Wind: Air-Breathing Lithium Batteries Promise Recharge-Free Long-Range Driving—If the Bugs Can Be Worked Out: Scientific American
IBM-led research to create lithium-air electric vehicle batteries gets a boost from Japanese chemical companies toward the goal of 800 kilometers out of a full charge
Researchers predict a new type of lithium battery under development could give an electric car enough juice to travel a whopping 800 kilometers before it needs to be plugged in again—about 10 times the energy that today’s lithium ion batteries supply. It is a tantalizing prospect—a lighter, longer-lasting, air-breathing power source for the next generation of vehicles—if only someone could build a working model. Several roadblocks stand between these lithium–air batteries and the open road, however, primarily in finding electrodes and electrolytes that are stable enough for rechargeable battery chemistry.
IBM plans to take lithium–air batteries out of neutral by building a working prototype by the end of next year. The company announced Friday it has stepped up development efforts by adding two Japanese technology firms—chemical manufacturer Asahi Kasei Corp. and electrolyte maker Central Glass—to the IBM Battery 500 Project, a coalition IBM established in 2009 to accelerate the switch from gas to electric-powered vehicles among carmakers and their customers.