Results 11 to 20 of about 20,883 (254)

Slab gliding, a hidden factor that induces irreversibility and redox asymmetry of lithium-rich layered oxide cathodes

open access: yesNature Communications, 2023
Lithium-rich layered oxides, despite their potential as high-energy-density cathode materials, are impeded by electrochemical performance deterioration upon anionic redox.
Jun-Hyuk Song   +12 more
doaj   +1 more source

Anionic redox processes for electrochemical devices [PDF]

open access: yesNature Materials, 2016
Understanding and controlling the anionic redox processes is pivotal for the design of new Li-ion battery and water splitting materials.
Grimaud, Alexis   +3 more
openaire   +4 more sources

Entropy and crystal-facet modulation of P2-type layered cathodes for long-lasting sodium-based batteries

open access: yesNature Communications, 2022
The use of Mn-rich layered cathodes in Na-based batteries is hindered by inadequate cycling reversibility and sluggish anionic redox kinetics. Here, the authors report a strategy to stabilize the structure and promote anionic redox via configurational ...
Fang Fu   +12 more
doaj   +1 more source

Oxygen redox chemistry in lithium-rich cathode materials for Li-ion batteries: Understanding from atomic structure to nano-engineering

open access: yesNano Materials Science, 2022
Lithium-rich oxide compounds have been recognized as promising cathode materials for high performance Li-ion batteries, owing to their high specific capacity.
Majid Farahmandjou   +5 more
doaj   +1 more source

Improved Electrode Reversibility of Nanosized Li1.15Nb0.15Mn0.7O2 through Li3PO4 Integration

open access: yesElectrochemistry, 2023
A lithium-excess cation-disordered rocksalt oxide, Li1.15Nb0.15Mn0.7O2, is synthesized and tested as positive electrode materials for battery applications. Although nanosized Li1.15Nb0.15Mn0.7O2 delivers a large reversible capacity using cationic/anionic
Yanjia ZHANG   +2 more
doaj   +1 more source

Highly charged fullerene anions electrochemically stabilized by anionic polymers

open access: yesElectrochemistry Communications, 2020
The dissolution of redox-active molecules on electrodes hinders the durability of the corresponding redox reactions. In this study, we propose the overcoating of anionic polymers as a possible solution to the dissolution problem.
Hiroyuki Ueda   +2 more
doaj   +1 more source

Recent Advances in Electrode Materials with Anion Redox Chemistry for Sodium-Ion Batteries

open access: yesEnergy Material Advances, 2021
The development of sodium-ion batteries (SIBs), which are promising alternatives to lithium-ion batteries (LIBs), offers new opportunities to address the depletion of Li and Co resources; however, their implementation is hindered by their relatively low ...
Natalia Voronina, Seung-Taek Myung
doaj   +1 more source

Oxygen-Based Anion Redox for Lithium Batteries

open access: yesAccounts of Chemical Research, 2020
ConspectusThe importance of current Li-ion batteries (LIBs) in modern society cannot be overstated. While the energy demands of devices increase, the corresponding enhancements in energy density of battery technologies are highly sought after.
Matthew Li   +3 more
openaire   +3 more sources

Addressing voltage decay in Li-rich cathodes by broadening the gap between metallic and anionic bands

open access: yesNature Communications, 2021
Voltage fade is a critical issue for Li-rich transition metal oxide cathode. Here, the authors modulate the oxygen anionic redox chemistry and enlarges the gap between metallic and anionic states by constructing Li2ZrO3 slabs into Li2MnO3 domain in Li1 ...
Jicheng Zhang   +9 more
doaj   +1 more source

Redox-Switchable Chalcogen Bonding for Anion Recognition and Sensing

open access: yesJournal of the American Chemical Society, 2022
Inspired by the success of its related sigma-hole congener halogen bonding (XB), chalcogen bonding (ChB) is emerging as a powerful noncovalent interaction with a plethora of applications in supramolecular chemistry and beyond. Despite its increasing importance, the judicious modulation of ChB donor strength remains a formidable challenge.
Robert Hein   +3 more
openaire   +2 more sources

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