Results 271 to 280 of about 962,829 (341)

Addressing Inherent Challenges to Chemical Relithiation of Cycled End‐of‐Life Cathode Materials

open access: yesAdvanced Energy Materials, EarlyView.
The evolution of fluorine surface species is tracked during a low‐temperature redox mediator relithiation process for direct recycling of cycled NMC 622. A washing step is presented as a solution for mediating adverse effects of surface contamination. Redox mediator relithiation is shown to be a rapid, efficient method that can be applied to cycled NMC
Cyrus Kirwa   +9 more
wiley   +1 more source

Chemical and Structural Degradation of Single Crystalline High‐Nickel Cathode Materials During High‐Voltage Holds

open access: yesAdvanced Energy Materials, EarlyView.
The study explores degradation of high‐nickel NCM cathodes during prolonged high‐voltage holds, revealing a novel non‐linear increase in charge transfer resistance (RCT) due to an inhomogeneous, resistive surface reconstruction layer (SRL). Detailed analyses uncover the gradual growth and non‐uniformity of the SRL, which causes constriction effects ...
Kilian Vettori   +10 more
wiley   +1 more source

Advanced Liquid Electrolyte Design for High‐Voltage and High‐Safety Lithium Metal Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review summarizes the key challenges in designing high‐voltage, safe electrolytes for lithium metal batteries (LMBs), including dendrite growth, interfacial instability, and flammability. The corresponding strategies cover regulating salt concentrations, designing fluorinated weakly solvating solvents, applying ionic liquids, and developing flame ...
Junhua Zhou   +11 more
wiley   +1 more source

Electrolyte Design and Optimization for Alkali Metal‐Sulfur Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Alkali metal sulfur‐based batteries, such as Li‐S, Na‐S, and K‐S batteries, are emerging as promising energy storage solutions due to their low cost and high energy density. However, comprehensive studies on the electrolytes used in in these batteries and their impact on electrochemical performance remain limited. This review summarizes recent advances
Min‐Hao Pai, Arumugam Manthiram
wiley   +1 more source

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