Linqin Mu
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View article: Revealing the Chemical and Structural Complexity of Electrochemical Ion Exchange in Layered Oxide Materials
Revealing the Chemical and Structural Complexity of Electrochemical Ion Exchange in Layered Oxide Materials Open
Soft chemistry techniques, such as ion exchange, hold great potential for the development of battery electrode materials that cannot be stabilized via conventional equilibrium synthesis methods. Nevertheless, the intricate mechanisms gover…
View article: Rigid-Rod Sulfonated Polyamide as an Aqueous-Processable Binder for Li-Ion Battery Electrodes
Rigid-Rod Sulfonated Polyamide as an Aqueous-Processable Binder for Li-Ion Battery Electrodes Open
Polymer binders are important components of most battery electrodes, ensuring high performance and long-term durability. Increasing demand for lithium-ion batteries in the automotive, stationary power, and portable electronics industries c…
View article: Mechanistic Insights into the Interplay between Ion Intercalation and Water Electrolysis in Aqueous Batteries
Mechanistic Insights into the Interplay between Ion Intercalation and Water Electrolysis in Aqueous Batteries Open
Improving electrolyte stability to suppress water electrolysis represents a basic principle for designing aqueous batteries. Herein, we investigate counterintuitive roles that water electrolysis plays in regulating intercalation chemistry.…
View article: Tailoring Disordered/Ordered Phases to Revisit the Degradation Mechanism of High‐Voltage LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Spinel Cathode Materials
Tailoring Disordered/Ordered Phases to Revisit the Degradation Mechanism of High‐Voltage LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Spinel Cathode Materials Open
In the spinel oxide cathode family, LiNi 0.5 Mn 1.5 O 4 (LNMO) shows a high operating voltage (≈4.7 V vs Li/Li + ) and excellent Li‐ion mobility with stable 3D conducting channels. Ni/Mn cation disordered and ordered phases usually coexist…
View article: Investigating Particle Size‐Dependent Redox Kinetics and Charge Distribution in Disordered Rocksalt Cathodes
Investigating Particle Size‐Dependent Redox Kinetics and Charge Distribution in Disordered Rocksalt Cathodes Open
Understanding how various redox activities evolve and distribute in disordered rocksalt oxides (DRX) can advance insights into manipulating materials properties for achieving stable, high‐energy batteries. Herein, the authors present how t…
View article: Resolving Charge Distribution for Compositionally Heterogeneous Battery Cathode Materials
Resolving Charge Distribution for Compositionally Heterogeneous Battery Cathode Materials Open
The isostructural nature of Li-layered cathodes allows for accommodating multiple transition metals (TMs). However, little is known about how the local TM stoichiometry influences the charging behavior of battery particles thus impacting b…
View article: Multiphase, Multiscale Chemomechanics at Extreme Low Temperatures: Battery Electrodes for Operation in a Wide Temperature Range (Adv. Energy Mater. 37/2021)
Multiphase, Multiscale Chemomechanics at Extreme Low Temperatures: Battery Electrodes for Operation in a Wide Temperature Range (Adv. Energy Mater. 37/2021) Open
Lithium-Ion Batteries In article number 2102122, Peter Cloetens, Kejie Zhao, Feng Lin, Yijin Liu and co-workers systematically elucidate multiphase, multiscale chemomechanical behaviors of composite lithium-ion battery cathodes under low-t…
View article: Multiphase, Multiscale Chemomechanics at Extreme Low Temperatures: Battery Electrodes for Operation in a Wide Temperature Range
Multiphase, Multiscale Chemomechanics at Extreme Low Temperatures: Battery Electrodes for Operation in a Wide Temperature Range Open
Understanding the behavior of lithium‐ion batteries (LIBs) under extreme conditions, for example, low temperature, is key to broad adoption of LIBs in various application scenarios. LIBs, poor performance at low temperatures is often attri…
View article: Investigating “Lean” Electrodeposited Lithium and Sodium Metal for Hybrid Ion/Metal Carbon Composite Anodes
Investigating “Lean” Electrodeposited Lithium and Sodium Metal for Hybrid Ion/Metal Carbon Composite Anodes Open
The implementation of alkali metal anodes in practical batteries have been unsuccessful due to major safety concerns related to dendritic growth and thermal runaway. Carbon scaffolds have been utilized as promising host materials in an eff…
View article: Investigating “Lean” Electrodeposited Lithium and Sodium Metal for Hybrid Ion/Metal Carbon Composite Anodes
Investigating “Lean” Electrodeposited Lithium and Sodium Metal for Hybrid Ion/Metal Carbon Composite Anodes Open
The implementation of alkali metal anodes in practical batteries have been unsuccessful due to major safety concerns related to dendritic growth and thermal runaway. Carbon scaffolds have been utilized as promising host materials in an eff…
View article: X-ray Nanoimaging of Crystal Defects in Single Grains of Solid-State Electrolyte Li<sub>7–3<i>x</i></sub>Al<sub><i>x</i></sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>
X-ray Nanoimaging of Crystal Defects in Single Grains of Solid-State Electrolyte Li<sub>7–3<i>x</i></sub>Al<sub><i>x</i></sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Open
All-solid-state lithium batteries promise significant improvements in energy density and safety over traditional liquid electrolyte batteries. The Al-doped Li7La3Zr2O12 (LLZO) solid-state electro…
View article: Manipulating Electrocatalytic Reaction and Ion Intercalation to Improve Aqueous Batteries
Manipulating Electrocatalytic Reaction and Ion Intercalation to Improve Aqueous Batteries Open
We report that electrocatalytic water decomposition can be leveraged to enhance the performance of aqueous batteries. Using the NaxFe[Fe(CN)6]ǁNaTi2(PO4)3 aqueous battery as a platform, we demons…
View article: Manipulating Electrocatalytic Reaction and Ion Intercalation to Improve Aqueous Batteries
Manipulating Electrocatalytic Reaction and Ion Intercalation to Improve Aqueous Batteries Open
We report that electrocatalytic water decomposition can be leveraged to enhance the performance of aqueous batteries. Using the NaxFe[Fe(CN) 6 ]ǁNaTi 2 (PO 4 ) 3 aqueous battery as a platform, we demonstrate that electrocatalytic water oxi…
View article: Resolving atomic-scale phase transformation and oxygen loss mechanism in ultrahigh-nickel layered cathodes for cobalt-free lithium-ion batteries
Resolving atomic-scale phase transformation and oxygen loss mechanism in ultrahigh-nickel layered cathodes for cobalt-free lithium-ion batteries Open
View article: Electrolyte Regulating toward Stabilization of Cobalt-Free Ultrahigh-Nickel Layered Oxide Cathode in Lithium-Ion Batteries
Electrolyte Regulating toward Stabilization of Cobalt-Free Ultrahigh-Nickel Layered Oxide Cathode in Lithium-Ion Batteries Open
Cobalt (Co)-free ultrahigh-nickel (Ni) layered oxides exhibit a double-edged competitive advantages in reducing the cathode cost and boosting the energy density, promising the sustainable development of batteries for electric vehicles. How…
View article: Docking MOF crystals on graphene support for highly selective electrocatalytic peroxide production
Docking MOF crystals on graphene support for highly selective electrocatalytic peroxide production Open
Supplementary material (synthesis protocols for control samples, morphological and structural characterizations, porosity, electrochemical properties and activities including SEM, TEM, XPS, Raman, AFM investigations) is available in the on…
View article: Room Temperature to 150 <b>°</b>C Lithium Metal Batteries Enabled by a Rigid Molecular Ionic Composite Electrolyte
Room Temperature to 150 <b>°</b>C Lithium Metal Batteries Enabled by a Rigid Molecular Ionic Composite Electrolyte Open
Molecular ionic composites (MICs), made from ionic liquids and a rigid‐rod polymer poly(2,2′‐disulfonyl‐4,4′‐benzidine terephthalamide) (PBDT), are a new type of rigid gel electrolyte that combine fast ion transport with high thermal stabi…
View article: X-ray nanoimaging of crystal defects in single grains of solid-state electrolyte AlxLi7-3xLa3Zr2O12
X-ray nanoimaging of crystal defects in single grains of solid-state electrolyte AlxLi7-3xLa3Zr2O12 Open
All-solid-state lithium batteries promise significant improvements in energy density and safety over traditional liquid electrolyte batteries. The Al-doped AlxLi7-3xLa3Zr2O12 (LLZO) solid-state electrolyte shows excellent potential given i…
View article: Probing Dopant Redistribution, Phase Propagation, and Local Chemical Changes in the Synthesis of Layered Oxide Battery Cathodes
Probing Dopant Redistribution, Phase Propagation, and Local Chemical Changes in the Synthesis of Layered Oxide Battery Cathodes Open
Achieving the targeted control of layered oxide properties calls for more fundamental studies to mechanistically probe their evolution during their synthesis. Herein, dopant distribution, phase propagation, and local chemical changes as we…
View article: Defect and structural evolution under high-energy ion irradiation informs battery materials design for extreme environments
Defect and structural evolution under high-energy ion irradiation informs battery materials design for extreme environments Open
View article: Machine-learning-revealed statistics of the particle-carbon/binder detachment in lithium-ion battery cathodes
Machine-learning-revealed statistics of the particle-carbon/binder detachment in lithium-ion battery cathodes Open
View article: Structural and Electrochemical Impacts of Mg/Mn Dual Dopants on the LiNiO<sub>2</sub> Cathode in Li-Metal Batteries
Structural and Electrochemical Impacts of Mg/Mn Dual Dopants on the LiNiO<sub>2</sub> Cathode in Li-Metal Batteries Open
Doping chemistry has been regarded as an efficient strategy to overcome some fundamental challenges facing the "no-cobalt" LiNiO2 cathode materials. By utilizing the doping chemistry, we evaluate the battery performance and stru…
View article: Enhancing surface oxygen retention through theory-guided doping selection in Li<sub>1−x</sub>NiO<sub>2</sub> for next-generation lithium-ion batteries
Enhancing surface oxygen retention through theory-guided doping selection in Li<sub>1−x</sub>NiO<sub>2</sub> for next-generation lithium-ion batteries Open
Using a collaborated in silico and experimental approach, we designed Sb-doped LiNiO2 with improved surface oxygen retention and electrochemical performance.
View article: The sensitive surface chemistry of Co-free, Ni-rich layered oxides: identifying experimental conditions that influence characterization results
The sensitive surface chemistry of Co-free, Ni-rich layered oxides: identifying experimental conditions that influence characterization results Open
Co-free, Ni-rich layered cathodes suffer from surface instability during various stages of the sample history, creating challenges for obtaining statistically representative characterization results and achieving stable battery performance.
View article: Dopant Distribution in Co-Free High-Energy Layered Cathode Materials
Dopant Distribution in Co-Free High-Energy Layered Cathode Materials Open
The practical implementation of Co-free, LiNiO2-derived cathodes has been prohibited by their poor cycle life and thermal stability, resulting from the structural instability, phase transformations, reactive surfaces, and chemomechanical b…
View article: Targeted Surface Doping with Reversible Local Environment Improves Oxygen Stability at the Electrochemical Interfaces of Nickel-Rich Cathode Materials
Targeted Surface Doping with Reversible Local Environment Improves Oxygen Stability at the Electrochemical Interfaces of Nickel-Rich Cathode Materials Open
Elemental doping represents a prominent strategy to improve interfacial chemistry in battery materials. Manipulating the dopant spatial distribution and understanding the dynamic evolution of the dopants at the atomic scale can inform bett…
View article: Fully Oxidized Ni–Fe Layered Double Hydroxide with 100% Exposed Active Sites for Catalyzing Oxygen Evolution Reaction
Fully Oxidized Ni–Fe Layered Double Hydroxide with 100% Exposed Active Sites for Catalyzing Oxygen Evolution Reaction Open
Ni–Fe layered double hydroxides (LDHs) are promising for catalyzing the oxygen evolution reaction (OER) in alkaline media. However, the OER mechanism is highly debated, partially because of the lack of an ideal catalyst with 100% exposed a…
View article: Quantification of Heterogeneous Degradation in Li‐Ion Batteries
Quantification of Heterogeneous Degradation in Li‐Ion Batteries Open
The multiscale chemomechanical interplay in lithium‐ion batteries builds up mechanical stress, provokes morphological breakdown, and leads to state of charge heterogeneity. Quantifying the interplay in complex composite electrodes with mul…
View article: Surface Characterization of Li-Substituted Compositionally Heterogeneous NaLi<sub>0.045</sub>Cu<sub>0.185</sub>Fe<sub>0.265</sub>Mn<sub>0.505</sub>O<sub>2</sub> Sodium-Ion Cathode Material
Surface Characterization of Li-Substituted Compositionally Heterogeneous NaLi<sub>0.045</sub>Cu<sub>0.185</sub>Fe<sub>0.265</sub>Mn<sub>0.505</sub>O<sub>2</sub> Sodium-Ion Cathode Material Open
The understanding of surface chemical and structural processes can provide some insights into designing stable sodium cathode materials. Herein, Li-substituted and compositionally heterogeneous NaLi0.045Cu0.185Fe…
View article: Multifunctional Hybrid Nanomaterials for Energy Storage
Multifunctional Hybrid Nanomaterials for Energy Storage Open