Coupling Cation Disorder and Anion Redox to Mitigate Voltage Hysteresis in Layered Na‐Storage Cathodes
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202512989
Abstract: Anion‐activated cathodes can achieve high energy density through the redox reactions of both cations and anions. However, they suffer from significant voltage hysteresis due to unfavorable order‐to‐disorder structural transitions and severe anion redox polarization during… read more here.
Keywords: anion redox; anion; voltage hysteresis; disorder ... See more keywords
Oxygen-Based Anion Redox for Lithium Batteries.
Sign Up to like & getrecommendations! Published in 2020 at "Accounts of chemical research"
DOI: 10.1021/acs.accounts.0c00104
Abstract: 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. Currently, many… read more here.
Keywords: anion; redox; anionic redox; ion ... See more keywords
Effect of Metal d Band Position on Anion Redox in Alkali-Rich Sulfides
Sign Up to like & getrecommendations! Published in 2024 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.4c00490
Abstract: New energy storage methods are emerging to increase the energy density of state-of-the-art battery systems beyond conventional intercalation electrode materials. For instance, employing anion redox can yield higher capacities compared with transition metal redox alone.… read more here.
Keywords: spectroscopy; redox; anion redox; anion ... See more keywords
Reducing Voltage Hysteresis in Li-Rich Sulfide Cathodes by Incorporation of Mn
Sign Up to like & getrecommendations! Published in 2024 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.4c00736
Abstract: Conventional intercalation-based cathode materials in Li-ion batteries are based on charge compensation of the redox-active cation and can only intercalate one mole of electron per formula unit. Anion redox, which employs the anion sublattice to… read more here.
Keywords: anion redox; anion; voltage hysteresis;
Anion Redox in an Amorphous Titanium Polysulfide.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c07337
Abstract: Amorphous transition-metal polysulfides are promising positive electrode materials for next-generation rechargeable lithium-ion batteries because of their high theoretical capacities. In this study, sulfur anion redox during lithiation of amorphous TiS4 (a-TiS4) was investigated by using… read more here.
Keywords: redox amorphous; amorphous titanium; anion redox; tis4 ... See more keywords
Coupling between oxygen redox and cation migration explains unusual electrochemistry in lithium-rich layered oxides
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-02041-x
Abstract: Lithium-rich layered transition metal oxide positive electrodes offer access to anion redox at high potentials, thereby promising high energy densities for lithium-ion batteries. However, anion redox is also associated with several unfavorable electrochemical properties, such… read more here.
Keywords: redox; migration; anion redox; oxygen redox ... See more keywords
Metal–oxygen decoordination stabilizes anion redox in Li-rich oxides
Sign Up to like & getrecommendations! Published in 2019 at "Nature Materials"
DOI: 10.1038/s41563-018-0276-1
Abstract: Reversible high-voltage redox chemistry is an essential component of many electrochemical technologies, from (electro)catalysts to lithium-ion batteries. Oxygen-anion redox has garnered intense interest for such applications, particularly lithium-ion batteries, as it offers substantial redox capacity… read more here.
Keywords: oxygen; voltage; chemistry; redox ... See more keywords
Low-temperature synthesized Li4Mn5O12-like cathode with hybrid cation- and anion-redox capacities.
Sign Up to like & getrecommendations! Published in 2019 at "Chemical communications"
DOI: 10.1039/c9cc02006c
Abstract: The Li-rich spinel Li4Mn5O12 (Li(Mn5/3Li1/3)O4) historically only shows a reversible cation-redox reaction, with a theoretical capacity of 135.5 mA h g-1. However, we found that a simple 400 °C solid-state synthesis method gives a Li4Mn5O12-like… read more here.
Keywords: redox; hybrid cation; li4mn5o12 like; anion redox ... See more keywords
Structural Complexity in a Highly Reversible "Anion-Redox" Cathode
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Materials Chemistry A"
DOI: 10.1039/d5ta01450f
Abstract: Li-rich cathodes with an O2-type layer stacking offer high gravimetric capacities and fast charge-discharge rates, and are structurally more stable with respect to transition metal migration than O3-type Li-rich cathodes.... read more here.
Keywords: reversible anion; complexity highly; anion redox; structural complexity ... See more keywords
Understanding anion-redox reactions in cathode materials of lithium-ion batteries through in situ characterization techniques: a review
Sign Up to like & getrecommendations! Published in 2022 at "Nanotechnology"
DOI: 10.1088/1361-6528/ac4c60
Abstract: As the demand for rechargeable lithium-ion batteries (LIBs) with higher energy density increases, the interest in lithium-rich oxide (LRO) with extraordinarily high capacities is surging. The capacity of LRO cathodes exceeds that of conventional layered… read more here.
Keywords: ion batteries; anion redox; redox; lithium ion ... See more keywords