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
On the Current-Voltage Hysteresis in Perovskite Solar Cells: Dependence on Perovskite Composition and Methods to Remove Hysteresis.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201805214
Abstract: Current-density-voltage (J-V) hysteresis in perovskite solar cells (PSCs) is a critical issue because it is related to power conversion efficiency and stability. Although parameters affecting the hysteresis have been already reported and reviewed, little investigation… read more here.
Keywords: hysteresis perovskite; voltage hysteresis; perovskite composition; hysteresis ... See more keywords
Formulating Local Environment of Oxygen Mitigates Voltage Hysteresis in Li‐Rich Materials
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Materials"
DOI: 10.1002/adma.202311814
Abstract: Li‐rich cathode materials have emerged as one of the most prospective options for Li‐ion batteries owing to their remarkable energy density (>900 Wh kg−1). However, voltage hysteresis during charge and discharge process lowers the energy… read more here.
Keywords: energy; formulating local; voltage hysteresis; local environment ... See more keywords
Eliminating Transition Metal Migration and Anionic Redox to Understand Voltage Hysteresis of Lithium‐Rich Layered Oxides
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201903634
Abstract: Lithium‐rich layered oxides are promising candidate cathode materials for the Li‐ion batteries with energy densities above 300 Wh kg−1. However, issues such as the voltage hysteresis and decay hinder their commercial applications. Due to the… read more here.
Keywords: layered oxides; hysteresis; migration; anionic redox ... See more keywords
Quantitative Decoupling of Oxygen‐Redox and Manganese‐Redox Voltage Hysteresis in a Cation‐Disordered Rock Salt Cathode
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Energy Materials"
DOI: 10.1002/aenm.202300241
Abstract: Pronounced voltage hysteresis in Li‐excess cathode materials is commonly thought to be associated with oxygen redox. However, these materials often possess overlapping oxygen and transition‐metal redox, whose contributions to hysteresis between charge and discharge are… read more here.
Keywords: voltage hysteresis; oxygen; redox; cathode ... See more keywords
On stress-induced voltage hysteresis in lithium ion batteries: Impacts of surface effects and interparticle compression
Sign Up to like & getrecommendations! Published in 2019 at "Science China Technological Sciences"
DOI: 10.1007/s11431-018-9491-6
Abstract: Application of silicon in high capacity electrodes of lithium ion battery suffers from stress effects and, in turn, affects voltage performance of battery. This paper established a reaction-diffusion-stress coupled model and investigated the stress induced… read more here.
Keywords: voltage; voltage hysteresis; stress induced; surface effects ... 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;
Reduction of Threshold Voltage Hysteresis of MoS2 Transistors with 3-Aminopropyltriethoxysilane Passivation and Its Application for Improved Synaptic Behavior.
Sign Up to like & getrecommendations! Published in 2019 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.9b01391
Abstract: Although molybdenum disulfide (MoS2) is highlighted as a promising channel material, MoS2-based field-effect transistors (FETs) have a large threshold voltage hysteresis (Δ VTH) from interface traps at their gate interfaces. In this work, the Δ… read more here.
Keywords: reduction; passivation; voltage hysteresis; threshold voltage ... See more keywords
Oxygen Dimerization-Driven Cation Migration Induces Voltage Hysteresis in Disordered Rocksalt Cathodes.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.4c09070
Abstract: Despite the potential to increase the energy limit of Li-rich cathodes by using oxygen redox, its practicality has been limited by the accompanying structural changes and voltage hysteresis. While voltage hysteresis is commonly associated with… read more here.
Keywords: migration; voltage hysteresis; oxygen dimerization; disordered rocksalt ... See more keywords
Probing the thermal effects of voltage hysteresis in anionic redox-based lithium-rich cathodes using isothermal calorimetry
Sign Up to like & getrecommendations! Published in 2019 at "Nature Energy"
DOI: 10.1038/s41560-019-0410-6
Abstract: The commercialization of high-energy batteries with lithium-rich cathode materials exhibiting combined cationic/anionic redox processes awaits the elimination of certain practical bottlenecks. Among these, large voltage hysteresis remains the most obscure from a fundamental thermochemical perspective.… read more here.
Keywords: lithium rich; voltage hysteresis; hysteresis; redox ... See more keywords
Low-voltage-hysteresis aluminum-sulfur battery with covalently functionalized mesoporous graphene.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc04067k
Abstract: A pyridyl-functionalized mesoporous graphene is developed to accommodate sulfur for Al-S batteries, which can significantly reduce the voltage hysteresis to ∼0.43 V. The reaction kinetics of the Al-S battery are accelerated by the catalyst-free carbon… read more here.
Keywords: graphene; voltage hysteresis; sulfur; covalently functionalized ... See more keywords