Rational Design and Ionic Co-Doping Modification of P2-Type Na-Rich Cathode Materials

Опубликована: Янв. 1, 2024

Язык: Английский

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An eco‐friendly Na‐ion battery utilizing biowaste‐derived carbon and birnessite with enhanced high voltage reaction

EcoEnergy, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Abstract Trigonal birnessite (Na 0.5 MnO 2 ·0.7H O) with quasi‐hexagonal‐stacked particles is synthesized by a simple procedure. The 6 layers are expanded (ca. 7.1 Å as confirmed HRTEM) sodium ion and water molecules permitting the cyclability of cathode up to 4.4 V without anionic redox effect. This particular phase exhibits storage performance 181.2 mA h g −1 reversible capacity, high Coulombic efficiency (99.8%), good rate (20–640 ), 80% capacity retention over 200 cycles. X‐ray adsorption near‐edge structure (XANES) spectra at Mn‐k edge that main component Mn 3+ /Mn 4+ . An environmental‐friendly Na‐ion full cell assembled this biowaste‐derived carbon (obtained from trash lemon peels) anode provided ∼ 330 Wh kg energy density (at material's level) which preserved ∼71% Manganese, sodium, cheap eco‐friendly materials for practical eagerly sought after in industry.

Язык: Английский

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Multifunctional carbonyl-rich compounds for constructing “corrosion-resistant electrodes and electrolyte interface” in high-voltage sodium-metal batteries

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 546 - 556

Опубликована: Ноя. 2, 2024

Язык: Английский

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Surface engineering of LiV3O8 with carbon quantum dots for enhanced electrochemical performance in sodium ion batteries

Journal of Physics and Chemistry of Solids, Год журнала: 2024, Номер 197, С. 112445 - 112445

Опубликована: Ноя. 8, 2024

Язык: Английский

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