Next-generation battery systems using tailored graphene architectures

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Graphene-based materials, which are atomically thin, conductive sheets of carbon, are poised to revolutionize the energy storage technologies that will enable wide-spread vehicle electrification, grid-level storage and various other advanced technologies. In particular, graphene is a critical battery component with the ability to boost the performance of the next-generation batteries that will soon replace current Li-ion technologies. The proposed research aims to develop a new, inexpensive and sustainable battery technology based on a novel sulfur-graphite chemistry enabled by graphene. This technology will double the amount of energy stored per mass or volume compared to state-of-the art Li-ion batteries while retaining the stability required for successful commercialization. For example, such a technology could double the drive range of an electric vehicle from the current 400km limit to 800km, making it competitive with gasoline-powered vehicles. The research and development program will focus on how to combine these materials at the nanoscale - a requirement for fast charge/discharge while tailoring the chemistry to promote safe and stable cycling. The improved batteries developed in this collaborative program are expected to displace Li-ion batteries from the marketplace and make Canada the development and manufacturing hub for such ground breaking technology. Furthermore, the focus on high volume technologies utilizing materials derived from graphite (graphene's parent material), will also promote the stimulate Canada's graphite industry which will generate significant economic growth and increased exports. Canada holds the only graphite reserves in North America and the 5th largest supply globally. Environmental benefits will also be accrued as Canada will lead to the implementation of green technologies that reduce emissions and more efficiently manage dwindling global energy demands.