Advanced Energy Materials
A weakly solvating single-solvent electrolyte composed of tetrahydropyran stabilizes the lithium-metal anode and sulfurized polyacrylonitrile cathode effectively without the necessity of a fluorinated diluent. It enables stable cycling of Li-SPAN batteries at wide temperature ranges of 0–50 °C. Abstract Sulfurized polyacrylonitrile (SPAN)...
4-Aminomethyl cyclohexanecarboxylic acid (AMCA) addition with steric hindrance effect is reported to achieve the balance between sluggish mass transfer and rapid electrochemical reduction kinetics via the pull-push interplay for zinc ions. Abstract The electrode interface concentration polarization attributed to the contradiction between...
Homogeneous complexation is achieved by enhancing the hydrophilicity of the complexation products through the strategy of “polyhydroxy modification” to realize high-capacity (57.2 Ah L−1) and high-stability (100.0% per cycle) zinc–bromine flow battery. Abstract Zinc–bromine flow batteries (ZBFBs) have received widespread attention as a transformative...
A cycling performance comparison of LiCoO2 cathodes demonstrates the superior stability and high capacity retention of dual fluoride-coated samples, followed by single fluoride-coated and fluorinated electrolyte-treated samples. The uncoated LiCoO2 with conventional electrolyte shows the lowest performance. The dual coating effectively enhances structural...
High-voltage Li-metal batteries often suffer from severe capacity fading due to the degradation of the cathode at high voltages and parasitic reactions between the electrolyte solution and both electrodes. The combination of a morphology-engineered Ni-rich cathode and the formation of a high-quality surface film ensures long-term stability by minimizing...
This work explores the impact of stack pressure on the electrochemical-transport interaction and performance of solid-state battery (SSB) cathodes. The complex interplay between stack pressure and microstructure-dependent mechanisms critically governs the interfacial resistances, lithiation heterogeneities, and current constriction effects. Optimizing...
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