The lithium-sulfur battery has higher energy storage capacity and lower cost than lithium ion. But there is a serious stumbling block. Polysulfides form in the cathode during battery cycling and pass through the membrane to contaminate the lithium metal anode. This results in a rapid decline in performance. JCESR researchers appear to have found a solution to the problem – the “polymer of intrinsic microporosity” (PIM).
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A Review of Electrochemical Advances in Non-Aqueous Organic Redox Flow Batteries
Advances in electrolytes for non-aqueous redox flow batteries and computational tools for their discovery and prediction are reviewed and explored. Read More
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Realizing high zinc reversibility in rechargeable batteries
The first comprehensive comparison of the ~20 published studies evaluating Zn metal reversibility for rechargeable batteries shows significant variability in published test methods and parameters, and poor alignment toward commercial targets for zinc metal batteries. Significance and Impact … Read More
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Seeing Battery Solutions Move to Assess the Health of Batteries
Organic redox-active molecules (redoxmers) are popular for flow battery fluids. Their structural variability comes with other properties that may be tailored for function. We discovered that fluorescence emission can be engineered into redoxmers, which allows real-time tracing of species crossover in a liquid flow cell, … Read More
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Continuum description of the role of negative transference numbers on ion motion in polymer electrolytes
This theoretical study not only reveals time and space dependence of ion motion in the PEO/LiTFSI electrolyte having negative transference number, but also provide guidance to experimentalists seeking to detect the direction of ion motion in these electrolytes. Read More
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Probing calcium solvation by XAS, MD and DFT calculations
The solvation shell structures of Ca2+ in aqueous and organic solutions are probed by calcium L-edge soft X-ray absorption spectroscopy (XAS) and DFT/MD simulations. Read More
