It's in the early stages, but IBM researchers are claiming they are developing new battery technology to replace lithium-ion in heavy-duty usage applications like transportation and storage. Their work is proprietary, but it is showing enough promise that they have started partnerships with several companies to develop a marketable product. The battery does not rely on heavy metals. It has higher power density than Li-ion and takes a charges much faster (80% in 5 minutes). Hope this works. If successful it could jumpstart the transportation sector and open new opportunities in areas like aviation.
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