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Abstract Metal phosphides are regarded as promising anode candidates for high-energy-density potassium-ion batteries (PIBs) due to their high theoretical capacity and relatively low operation voltage. The failure mechanism of the metal phosphides originates from the large volume variation during cycling, which leads to fast capacity degradation. Herein, concentrated electrolyte is used to achieve impressive cycling stability for K-metal and K-ion batteries over their more dilute counterparts, mainly benefiting from the anion-derived robust and uniform solid–electrolyte interphase layer, which is helpful in maintaining the electrode integrity, avoiding excessive side reactions, and suppressing electrolyte decomposition. Further investigations also reveal the synergistic advantages of the superior chemical compatibility of concentrated electrolyte to potassium metal, as well as its remarkable electrochemical stability and enhanced safety compared to conventional dilute electro ....
Abstract Significant interest is directed towards converting CO to high-value feedstock chemicals. Here, the performance of carbon deposited from carbonate fluxes under CO environments are reported for direct use as anodes in sodium-ion batteries. The generated carbon is found to be amorphous hard carbon, evidenced by X-ray diffraction (XRD) data and I /I ratios of the D- and G- bands of graphite in Raman spectroscopy. Furthermore, the role of washing and removing the deposit is evaluated for the carbon generated and the subsequent electrochemical performance. The best performing samples were grown on a copper substrate, which delivered initial reversible capacities of 209 ± 23 mAh/g mAh/g on the 5th cycle at a rate of 10 mA/g, and feature a capacity retention of 86.6 ± 1.8 % after 50 cycles. The value in this approach to generate carbons lies in the fact that these fluxes are designed to be similar to that used for molten salts in solar thermal plants and, if coupled app ....
(1) Three-way partnership pairs NextSource with a leading processor and a supplier of battery anode material within the Tesla supply chain. Provides NextSource with a complete, turn-key facility that is a duplicate of the current facilities that are processing spheronized and purified graphite (SPG) for lithium-ion batteries ( LiB ) by current suppliers to Tesla and other electric vehicle ( EV ) and hybrid vehicle ( HEV ) manufacturers. Enables NextSource to gain immediate access to leading and established spheroidization technology intellectual property. As a result, the time required for final QA/QC of its SuperFlake® graphite with other automotive manufacturers can be significantly reduced. Commissioning of the battery anode facility is targeted for Q4 2022. ....
UPDATE - Nouveau Monde Announces Phase 2 of What Is Planned to Become North America s Largest Fully Integrated Anode Material Production Today, we are proud to announce Phase 2 of our effort, with a projected low operating cost profile. . . Segnalato da : ....
NEO Battery Materials Ltd.: NEO Battery Materials Ltd: Updates on Key Innovations of Licensed Patents Regarding Silicon Nano-Coating Technology for Next Generation Battery Anode Materials NEO or the Agreement ) made with the University-Industry Foundation of Yonsei University ( Yonsei University ). NEO s innovative technology will enable ultra-fast charging and discharging, longer battery life-span, and mechanical robustness for lithium-ion batteries through proprietary silicon nano-coating. Over the past decades, astonishing advances in portable electronics and hybrid/full electric vehicles have awakened the persistent demand for higher energy density lithium-ion batteries (LIBs) to power them longer. Due to the limited specific capacity of traditional graphite anode materials (370 mAh/g), the attractive features of silicon as an anode material - a much higher theoretical specific capacity of 4200 mAh/g, a low discharge potential of around +0.5 V versus Li/Li+ ....