Better batteries for electric cars and cellphones and better batteries for industrial use that can store excess power generated by wind and solar farms and then supply it to the grid at times of peak demand are greatly needed. The ability to efficiently store energy generated from renewable sources would quite literally be a game changer in the quest to build a clean energy future and reduce the impact of climate change. George Crabtree, director of the Joint Center for Energy Storage Research, discusses the importance of next-generation batteries with Paris Schutz on Chicago Tonight.
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Probing migration of magnesium cations in spinel oxides
Measurements of 25Mg variable temperature solid-state nuclear magnetic resonance (VT ss-NMR), and muon spin relaxation (μSR) in 3 spinel oxides reveal experimental magnesium hoping barriers as low as ∼0.6 eV, in agreement with independent density functional theory (DFT) predictions. Read More
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Designing Membranes for Aqueous Alkaline Flow Batteries from Polymers of Intrinsic Microporosity
The incorporation of amidoxime units along the rigid backbone of a polymer of intrinsic microporosity to make them aqueous-compatible (AquaPIMs) allows for exceptional conductivity and stability in harsh alkaline environments while blocking a variety of active materials. Read More
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Reversible Electrochemical Interface of Mg Metal and a Conventional Electrolyte Enabled by Intermediate Adsorption
A detailed description of the complex charge-transfer process at a Mg/electrolyte interface is provided where an additional adsorption process, during Mg plating, is confirmed to be a key step. Read More
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Coupled Cation-Anion Dynamics Enhances Cation Mobility in Room Temperature Superionic Solid-State Electrolytes
Our work reveals facile [PX4]3- anion rotation in superionic Na11Sn2PS12 and Na11Sn2PSe12, and greatly hindered [SbS4]3- rotational dynamics in their less conductive analogue, Na11Sn2SbS12. Along with introducing dynamic frustration in the energy landscape, the fluctuation caused by [PX4]3- anion rotation is firmly proved to couple … Read More
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The Effect of Added Salt on the Size of Polymer Chains in Electrolytic Mixtures
The effect of salt concentration on the molecular conformation of a polymer was determined by small angle neutron scattering. Read More
