Transition metal vacancy and position engineering enables reversible anionic redox reaction for sodium storage [PDF]
Nature CommunicationsTriggering the anionic redox reaction is an effective approach to boost the capacity of layered transition metal (TM) oxides. However, the irreversible oxygen release and structural deterioration at high voltage remain conundrums.
Congcong Cai +13 more
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Boosting reversible anionic redox reaction with Li/Cu dual honeycomb centers
eScience, 2023 The anionic redox reaction (ARR) is a promising charge contributor to improve the reversible capacity of layered-oxide cathodes for Na-ion batteries; however, some practical bottlenecks still need to be eliminated, including a low capacity retention ...
Xiaohui Rong +17 more
doaj +4 more sources
Transition Metal Slab Gliding: One Key Process for Activating Anionic Redox Reaction in P2‐Type Transition Metal Oxide Cathodes [PDF]
Advanced ScienceAnionic redox chemistry is crucial for determining the capacity and stability of layered oxide cathodes for Na‐ion batteries. However, the driving forces of anionic redox remain elusive.
Dongxiao Wang +12 more
doaj +2 more sources
Anionic redox reaction in layered NaCr2/3Ti1/3S2 through electron holes formation and dimerization of S–S [PDF]
Nature Communications, 2019 Anionic redox reactions are gaining interest as a means to optimize capacities of alkaline ion batteries. Here, the authors investigate various charge compensation mechanisms and report S–S dimerization and the formation of electron holes on sulfur in a ...
Tian Wang +12 more
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Lithia/(Ir, Li2IrO3) nanocomposites for new cathode materials based on pure anionic redox reaction. [PDF]
Sci Rep, 2019 AbstractAnionic redox reactions attributed to oxygen have attracted much attention as a new approach to overcoming the energy-density limits of cathode materials. Several oxides have been suggested as new cathode materials with high capacities based on anionic (oxygen) redox reactions. Although most still have a large portion of their capacity based on
Lee SY, Park YJ.
europepmc +4 more sources
Enhanced Anionic Redox Reaction of Na-Layered Li-Containing Mn-Based Cathodes by Cu-Mediated Reductive Coupling Mechanism [PDF]
NanomaterialsNa-layered Li-containing Mn-based cathodes (NaxLiyMn1-yO2, NLMOs) with additional Na+ storage ability resulting from the anionic redox reaction (ARR) hold great promise for sodium-ion batteries (NIBs).
Danyang Li +6 more
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Anionic Redox Reaction-Induced High-Capacity and Low-Strain Cathode with Suppressed Phase Transition [PDF]
Joule, 2019 Summary Layered metal oxides have attracted widespread attention as cathodes for Na-ion batteries (NIBs) because of easy synthesis, high specific capacity, and high energy density. However, most reported layered oxides suffer from complex phase transitions upon a large amount of Na deintercalation.
Xiaohui Rong, Enyuan Hu, Yaxiang Lu
exaly +3 more sources
Anionic Redox Reactions in Cathodes for Sodium‐Ion Batteries
ChemElectroChem, 2021 AbstractIntercalation‐based cathodes typically rely on the cationic redox activity of transition metals to deliver capacity, but, recently, anionic redox chemistry has emerged as a way to increase the energy density of rechargeable batteries. However, the irreversible structural disorder and voltage fading accompanying oxygen release are major problems
Jae‐Hyuk Park +6 more
openaire +1 more source
Nature 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
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Configuration‐dependent anionic redox in cathode materials
Battery Energy, 2022 The utilization of anionic redox is one of the most prospective strategies to obtain high specific capacities in addition to the transition metal redox.
Lu Yang +6 more
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