Researchers used transmission electron microscopy and X-ray techniques to observe the defects that led to failure in sodium-ion battery cathodes. Eliminating these defects will allow these batteries to last longer. Image courtesy of Argonne National Laboratory Image courtesy of Argonne National Laboratory. However, the performance of these batteries declines rapidly with repeated charges and discharges. This is a major barrier to bringing these devices to the marketplace.
Armed with this knowledge, battery developers can adjust the conditions during battery synthesis and control the defects in sodium-ion battery cathodes. This work leverages the capability of both user facilities to capture real-time information on transformations in materials as they happen, under controllable changes in the sample environment. These findings highlight the importance of eliminating these defects to ensure long-term stable cycling of sodium-ion batteries at higher voltages.
Lithium-sulfur batteries are up to 3 times more energy dense than conventional lithium-ion batteries, but have short lives -- so far.Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News! Argonne scientists have developed a new electrolyte for...Researchers at Argonne National Lab believe they may have a solution for lithium ion batteries that perform poorly in the cold.
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