Under the ARPA-E program, Sion Power, in collaboration with BASF, Lawrence Berkeley National Lab and Pacific Northwest National Laboratory, will accelerate the development of practical, economical and safe lithium-sulfur (Li-S) batteries for powering electric cars more than 300 miles between charges.
Li-S chemistry offers the highest energy potential of any two solid elements with more than twice the energy capacity of lithium ion technology at half the weight. This grant will fund a four-way collaboration coupling Sion Power’s patented materials and process technologies with expertise provided by national laboratories and the world’s largest chemical company, BASF, to expedite commercial success.
Performance targets for this program are to exceed 500 Wh/kg and 500 cycles at commercially viable recharge rates. By 2016, the goal is to produce a cell with 600 Wh/kg and 1,000 cycles. While the energy potential of Li-S is well known, Sion Power has established proprietary and patented materials and methods for protecting the lithium metal anode which differentiates its approach from all other known Li-S research efforts. These advances directly improve cycle life and safety while allowing higher energy capacities to be achieved. Sion Power batteries contain no heavy metals and are environmentally preferred over other technologies.
All major automotive manufacturers are vigorously pursuing the introduction of hybrids, plug-in hybrids and electric cars that provide the range and comfort consumers have come to expect in automobiles. Sion Power’s focus is to be the first rechargeable battery company to develop battery technology that can safely and affordably meet these expectations. Sion Power believes that by utilizing Li-S technology, a battery pack weighing less than 700 lbs can power a 3,500 lb five-passenger vehicle more than 300 miles.