08 Aug '18, 7pm

New group of materials could lead to faster-charging Li-ion batteries

New group of materials could lead to faster-charging Li-ion batteries

Researchers from the University of Cambridge, with colleagues from Argonne National Laboratory in the US and Diamond Light Source, Harwell Science and Innovation Campus, UK, have identified a group of materials—niobium tungsten oxides—that could be used to make even higher power batteries. The researchers, led by Professor Clare Grey, found that lithium ions move through the materials at rates that far exceed those of typical electrode materials, which equates to a much faster-charging battery. Their paper is published in the journal Nature . Charge, energy, and power densities of micrometer-sized Nb16 W5 O55 and Nb18 W16 O93 compared to state-of-the-art high-rate nanoscale materials and formulations. Griffith et al. The maximum power output and minimum charging time of a lithium-ion battery depend on both ionic and electronic transport. Ionic diffusion within the electroc...

Full article: http://www.greencarcongress.com/2018/07/20180726-griffith...

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