Results 221 to 230 of about 133,879,868 (285)

Sulfonated‐TiO2 Nanorod–Reinforced PEO Composite Solid Electrolytes for High‐Voltage Solid‐State Lithium Metal Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces a high‐performance composite solid electrolyte (CSE) utilizing actively sulfonated TiO2 (STiO2) nanorods within a PEO matrix. The 1D ceramic network chemically promotes LiTFSI dissociation and creates continuous fast‐hopping pathways for Li+ ions, delivering an ionic conductivity of 1.5 × 10−4 S cm−1 at room temperature, an ...
Soukaina Bakkardouch   +7 more
wiley   +1 more source

In Situ Constructed TiO2 on Ti3C2‐MXene Cathode Enables Photo‐Assisted Zn‐Ion Hybrid Microsupercapacitors With High‐Energy Density

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A strategy has been developed for the in situ constructed of TiO2 nanoparticles on a Ti3C2‐MXene cathode, which is assembled with a zinc anode to form a photo‐assisted ZIH‐MSC device. The designed light‐assisted ZIH‐MSC device achieved a wide operating voltage (1.3 V) and battery‐level energy density (97 μWh cm−2, 1 mA cm−2), overcoming the limitations
Tianyu Zhang   +4 more
wiley   +1 more source

Tuning Cation Disorder in LiNi0.5Mn1.5O4 via Room Temperature Continuous‐Flow Co‐Precipitation and Controlled Heat Treatment

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
LiNi0.5Mn1.5O4 (LNMO) precursors were produced at room temperature by Ambient Continuous Turbulent In‐line Mixing (ACTIM) at rates of up to 0.42 kg h−1. The final heat treatment step at 650, 700, or 750 °C, altered cation disorder and the electrochemical behavior of the LNMO cathodes, while the effect of adding MWCNTs to the electrodes, was also ...
Bangxun Yin   +5 more
wiley   +1 more source

Superstructure Reconstruction Stabilizes Anionic Redox in Cobalt‐Free Lithium‐Rich Layered Cathodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Superstructure reconstruction through Ni3+‐induced Ni/Mn exchange stabilizes the anionic redox in cobalt‐free lithium‐rich cathodes. This strategy mitigates oxygen loss and transition metal migration, yielding high capacity (231 mAh g−1) and durable cycling (84% over 500 cycles) with suppressed voltage decay. Structural degradation in Li‐rich manganese‐
Wenqing Yao   +15 more
wiley   +1 more source

High‐Rate Magnesium‐Ion Batteries Enabled by Boron‐Doped Bismuth Anodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A critical challenge of alloy anodes like bismuth for magnesium‐ion batteries is severe volume expansion, leading to inherent interface instability. To stabilize high‐rate Mg2+ transport, a bulk‐doping‐driven interface engineering strategy is proposed through the introduction of covalent Bi‐B bonds.
Yuanyi Luo   +10 more
wiley   +1 more source

Multifunctional Oleylamine Enables Direct Regeneration of Spent Lithium Iron Phosphate Cathodes through Coupled Lattice and Interface Repair

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multifunctional oleylamine‐assisted solvothermal strategy is introduced for coupled lattice and interface repair of S‐LFP cathodes. Benefiting from its strongly coordinating amine groups and long hydrophobic alkyl chains, oleylamine simultaneously acts as an intrinsic reductant, defect‐repair mediator, morphology stabilizer, and carbon/nitrogen ...
Yuan Feng   +11 more
wiley   +1 more source

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