Outputs (25)

Structure and chemical composition of the Mg electrode during cycling in a simple glyme electrolyte (2024)
Journal Article

The volumetric energy density of magnesium exceeds that of lithium, making magnesium batteries particularly promising for next-generation energy storage. However, electrochemical cycling of magnesium electrodes in common battery electrolytes is coulo... Read More about Structure and chemical composition of the Mg electrode during cycling in a simple glyme electrolyte.

A lithium-air battery and gas handling system demonstrator (2023)
Journal Article

The lithium-air (Li-air) battery offers one of the highest practical specific energy densities of any battery system at >400 W h kgsystem−1. The practical cell is expected to operate in air, which is flowed into the positive porous electrode where it... Read More about A lithium-air battery and gas handling system demonstrator.

Why charging Li–air batteries with current low-voltage mediators is slow and singlet oxygen does not explain degradation (2023)
Journal Article

Although Li–air rechargeable batteries offer higher energy densities than lithium-ion batteries, the insulating Li2O2 formed during discharge hinders rapid, efficient re-charging. Redox mediators are used to facilitate Li2O2 oxidation; however, fast... Read More about Why charging Li–air batteries with current low-voltage mediators is slow and singlet oxygen does not explain degradation.

Hydroperoxide-Mediated Degradation of Acetonitrile in the Lithium–Air Battery (2023)
Journal Article

Understanding and eliminating degradation of the electrolyte solution is arguably the major challenge in the development of high energy density lithium–air batteries. The use of acetonitrile provides cycle stability comparable to current state-of-the... Read More about Hydroperoxide-Mediated Degradation of Acetonitrile in the Lithium–Air Battery.

Voltammetric Evidence of Proton Transport through the Sidewalls of Single-Walled Carbon Nanotubes (2023)
Journal Article

Understanding ion transport in solid materials is crucial in the design of electrochemical devices. Of particular interest in recent years is the study of ion transport across 2-dimensional, atomically thin crystals. In this contribution, we describe... Read More about Voltammetric Evidence of Proton Transport through the Sidewalls of Single-Walled Carbon Nanotubes.

Self-Assembled Surfactant-Polyoxovanadate Soft Materials as Tuneable Vanadium Oxide Cathode Precursors for Lithium-Ion Batteries (2023)
Journal Article

The mixing of [V10O28]6− decavanadate anions with a dicationic gemini surfactant (gem) leads to the spontaneous self-assembly of surfactant-templated nanostructured arrays of decavanadate clusters. Calcination of the material under air yields highly... Read More about Self-Assembled Surfactant-Polyoxovanadate Soft Materials as Tuneable Vanadium Oxide Cathode Precursors for Lithium-Ion Batteries.

Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response (2022)
Journal Article

This study describes the chemical conversion and heat treatment of Ti6Al4V microspheres (Ti6_MS), and the resulting effects on their electrocatalytic properties. The wet-chemical conversion (5.0m NaOH, 60°C, 24h; Sample label: Ti6_TC) converts the to... Read More about Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response.

Enflurane Additive for Sodium Negative Electrodes (2022)
Journal Article

Development of sodium anodes, both hard carbon (HC) and metallic, is dependent on the discovery of electrolyte formations and additives able to stabilize the interphase and support Na+ transport. Halogen salt additives are known to lower the energy b... Read More about Enflurane Additive for Sodium Negative Electrodes.

Competitive Oxygen Reduction Pathways to Superoxide and Peroxide during Sodium-Oxygen Battery Discharge (2022)
Journal Article

The sodium-air battery offers a sustainable, high-energy alternative to lithium-ion batteries. Discharge in the cell containing glyme-based electrolytes can lead to formation of large cubic NaO2 particles via a solution-precipitation mechanism. While... Read More about Competitive Oxygen Reduction Pathways to Superoxide and Peroxide during Sodium-Oxygen Battery Discharge.

Singlet oxygen and dioxygen bond cleavage in the aprotic lithium-oxygen battery (2022)
Journal Article

Investigation of lithium-oxygen cells on discharge using a mixture of 16O16O and 18O18O gases, showed that O–O bond cleavage occurs during disproportionation of LiO2 to O2 and Li2O2, detected by the presence of isotopic 16O18O. The formation of singl... Read More about Singlet oxygen and dioxygen bond cleavage in the aprotic lithium-oxygen battery.

Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes (2022)
Journal Article

We describe the preparation of hybrid redox materials based on polyoxomolybdates encapsulated within single-walled carbon nanotubes (SWNTs). Polyoxomolybdates readily oxidize SWNTs under ambient conditions in solution, and here we study their charge-... Read More about Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes.

Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes (2022)
Journal Article

We describe the preparation of hybrid redox materials based on polyoxomolybdates encapsulated within single-walled carbon nanotubes (SWNTs). Polyoxomolybdates readily oxidize SWNTs under ambient conditions in solution, and here we study their charge-... Read More about Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes.

Electrochemistry of redox-active molecules confined within narrow carbon nanotubes (2021)
Journal Article

Confinement of molecules within nanocontainers can be a powerful tool for controlling the states of guest-molecules, tuning properties of host-nanocontainers and triggering the emergence of synergistic properties within the host–guest systems. Among... Read More about Electrochemistry of redox-active molecules confined within narrow carbon nanotubes.

Critical Role of the Interphase at Magnesium Electrodes in Chloride-Free, Simple Salt Electrolytes (2021)
Journal Article

Magnesium (Mg) batteries are a potential beyond lithium-ion technology but currently suffer from poor cycling performance, partly due to the interphase formed when magnesium electrodes react with electrolytes. The use of magnesium bis(trifluoromethan... Read More about Critical Role of the Interphase at Magnesium Electrodes in Chloride-Free, Simple Salt Electrolytes.

Sustainability of Battery Technologies: Today and Tomorrow (2021)
Journal Article

Molecular redox species for next-generation batteries (2021)
Journal Article

This Tutorial Review describes how the development of dissolved redox-active molecules is beginning to unlock the potential of three of the most promising ‘next-generation’ battery technologies – lithium–air, lithium–sulfur and redox-flow batteries.... Read More about Molecular redox species for next-generation batteries.

2021 roadmap on lithium sulfur batteries (2021)
Journal Article

Batteries that extend performance beyond the intrinsic limits of Li-ion batteries are among the most important developments required to continue the revolution promised by electrochemical devices. Of these next-generation batteries, lithium sulfur (L... Read More about 2021 roadmap on lithium sulfur batteries.

The Interface between Li6.5La3Zr1.5Ta0.5O12 and Liquid Electrolyte (2019)
Journal Article

An advantageous solid electrolyte/liquid electrolyte interface is crucial for the implementation of a protected lithium anode in liquid electrolyte cells. Li6.5La3Zr1.5Ta0.5O12 (LLZTO) garnet electrolytes are among the few solid electrolytes that are... Read More about The Interface between Li6.5La3Zr1.5Ta0.5O12 and Liquid Electrolyte.

High capacity surface route discharge at the potassium-O 2 electrode (2018)
Journal Article

Discharge by a surface route at the cathode of an aprotic metal-O2 battery typically results in surface passivation by the non-conducting oxide product. This leads to low capacity and early cell death. Here we investigate the cathode discharge reacti... Read More about High capacity surface route discharge at the potassium-O 2 electrode.

Kinetics of lithium peroxide oxidation by redox mediators and consequences for the lithium–oxygen cell (2018)
Journal Article

Lithium–oxygen cells in which lithium peroxide forms in solution rather than on the electrode surface, can sustain relatively high cycling rates but require redox mediators to charge. The mediators are oxidised at the electrode surface and then oxidi... Read More about Kinetics of lithium peroxide oxidation by redox mediators and consequences for the lithium–oxygen cell.

Operando monitoring of the solution-mediated discharge and charge processes in a Na-O2 battery using liquid-electrochemical Transmission Electron Microscopy (2018)
Journal Article

Despite the fact that in sodium-oxygen (Na-O2) batteries show promise as high-energy storage systems, this technology is still the subject of intense fundamental research, owing to the complex reaction by which it operates. To understand the formatio... Read More about Operando monitoring of the solution-mediated discharge and charge processes in a Na-O2 battery using liquid-electrochemical Transmission Electron Microscopy.

A rechargeable lithium–oxygen battery with dual mediators stabilizing the carbon cathode (2017)
Journal Article

At the cathode of a Li–O2 battery, O2 is reduced to Li2O2 on discharge, the process being reversed on charge. Li2O2 is an insulating and insoluble solid, leading ultimately to low rates, low capacities and early cell death if formed on the cathode su... Read More about A rechargeable lithium–oxygen battery with dual mediators stabilizing the carbon cathode.

Phenol-Catalyzed Discharge in the Aprotic Lithium-Oxygen Battery (2017)
Journal Article

Discharge in the lithium‐O2 battery is known to occur either by a solution mechanism, which enables high capacity and rates, or a surface mechanism, which passivates the electrode surface and limits performance. The development of strategies to promo... Read More about Phenol-Catalyzed Discharge in the Aprotic Lithium-Oxygen Battery.

Promoting solution phase discharge in Li-O-2 batteries containing weakly solvating electrolyte solutions (2016)
Journal Article

On discharge, the Li–O2 battery can form a Li2O2 film on the cathode surface, leading to low capacities, low rates and early cell death, or it can form Li2O2 particles in solution, leading to high capacities at relatively high rates and avoiding earl... Read More about Promoting solution phase discharge in Li-O-2 batteries containing weakly solvating electrolyte solutions.

The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences for Li–O2 batteries (2014)
Journal Article