Wesley M. Dose
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View article: Utilising Acoustic Techniques to Improve Understanding of the Formation Process in Sodium-ion Batteries
Utilising Acoustic Techniques to Improve Understanding of the Formation Process in Sodium-ion Batteries Open
Sodium-ion batteries (NIBs) offer a more sustainable and cost-effective alternative to lithium-ion batteries (LIBs), but challenges related to the formation process and the impact of electrolyte additives on the solid electrolyte interphas…
View article: Revealing How Silicon Oxide Accelerates Calendar Ageing of Commercial 21700 Nickel-Rich Lithium-Ion Cells
Revealing How Silicon Oxide Accelerates Calendar Ageing of Commercial 21700 Nickel-Rich Lithium-Ion Cells Open
This study investigates the calendar ageing behaviour of NMC811//SiO x -graphite 21700 cylindrical cells (LGM 50), which were held at varying states of charge (SoC), for up to 70 weeks at 4 different temperatures. Throughout the ageing stu…
View article: Surface oxygen drives electrolyte degradation at Ni-rich battery cathodes
Surface oxygen drives electrolyte degradation at Ni-rich battery cathodes Open
The rapid uptake of lithium-ion batteries for large scale electric vehicle and energy storage applications requires a deeper understanding of the degradation mechanisms that contribute to fading performance. Capacity fade arises because of…
View article: Revealing how silicon oxide accelerates calendar ageing of commercial 21700 nickel-rich lithium-ion cells
Revealing how silicon oxide accelerates calendar ageing of commercial 21700 nickel-rich lithium-ion cells Open
This study investigates the calendar ageing behaviour of NMC811//SiOx-graphite 21700 cylindrical cells (LGM50), which were held at varying states of charge (SoC), for up to 70 weeks at 4 different temperatures. Throughout the ageing study,…
View article: First Observation and Mitigation of Ni-Leaching Mediated Degradation to Enhance Stability of Ni-rich Layered Cathodes in Solid-State Batteries
First Observation and Mitigation of Ni-Leaching Mediated Degradation to Enhance Stability of Ni-rich Layered Cathodes in Solid-State Batteries Open
Cathode–solid electrolyte (SE) interfacial stability issues pose a significant challenge to stable and high-power operations of all-solid-state batteries, which promise greater energy density, thermal stability, and safety than the current…
View article: Degradation Pathways in Lithium‐Ion Batteries with Ethylene Carbonate‐Free Electrolytes
Degradation Pathways in Lithium‐Ion Batteries with Ethylene Carbonate‐Free Electrolytes Open
The development of stable electrolyte solutions is critical for improving the lifetime and performance of lithium‐ion batteries (LIBs). Electrolyte instability is a prominent issue with many next‐generation electrode materials, such as Ni‐…
View article: Singlet oxygen is not the source of ethylene carbonate degradation in nickel-rich Li-ion cells
Singlet oxygen is not the source of ethylene carbonate degradation in nickel-rich Li-ion cells Open
Photochemical assessment shows ethylene carbonate does not react with singlet oxygen, indicating degradation within nickel-rich cells follows an alternative route.
View article: Electrolyte stability and instability in lithium-ion batteries
Electrolyte stability and instability in lithium-ion batteries Open
The development of stable electrolyte solutions is critical for improving the lifetime and performance of lithium-ion batteries. Electrolyte instability is a prominent issue with many next-generation electrode materials, such as Ni-rich ca…
View article: Origins and Importance of Intragranular Cracking in Layered Lithium Transition Metal Oxide Cathodes
Origins and Importance of Intragranular Cracking in Layered Lithium Transition Metal Oxide Cathodes Open
Li-ion batteries have a pivotal role in the transition toward electric transportation. Ni-rich layered transition metal oxide (LTMO) cathode materials promise high specific capacity and lower cost but exhibit faster degradation compared wi…
View article: Synergistic Degradation Mechanism in Single Crystal Ni-Rich NMC//Graphite Cells
Synergistic Degradation Mechanism in Single Crystal Ni-Rich NMC//Graphite Cells Open
[Abstract]: Oxygen loss at high voltages in Ni-rich NMC//graphite Li-ion batteries promotes degradation, but increasing evidence from full cells reveals that the depth of discharge choice can further accelerate aging, i.e., synergistic deg…
View article: Does Heat Play a Role in the Observed Behavior of Aqueous Photobatteries?
Does Heat Play a Role in the Observed Behavior of Aqueous Photobatteries? Open
Light-rechargeable photobatteries have emerged as an elegant solution to address the intermittency of solar irradiation by harvesting and storing solar energy directly through a battery electrode. Recently, a number of compact two electrod…
View article: Origins and importance of intragranular cracking in layered lithium transition metal oxide cathodes
Origins and importance of intragranular cracking in layered lithium transition metal oxide cathodes Open
Li-ion batteries have a pivotal role in the transition towards electric transportation. Ni-rich layered transition metal oxide (LTMO) cathode materials promise high specific capacity and lower cost but exhibit faster degradation compared t…
View article: Origins and importance of intragranular cracking in layered lithium transition metal oxide cathodes
Origins and importance of intragranular cracking in layered lithium transition metal oxide cathodes Open
Li-ion batteries have a pivotal role in the transition towards electric transportation. Ni-rich layered transition metal oxide (LTMO) cathode materials promise high specific capacity and lower cost but exhibit faster degradation compared t…
View article: Synergistic degradation mechanism in single crystal Ni-rich NMC//graphite cells
Synergistic degradation mechanism in single crystal Ni-rich NMC//graphite cells Open
Oxygen loss at high voltages in Ni-rich NMC//graphite Li-ion batteries promotes degradation but increasing evidence from full cells has shown the depth of discharge choice can further accelerate aging i.e. synergistic degradation. In this …
View article: Direct re-lithiation strategy for spent lithium iron phosphate battery in Li-based eutectic using organic reducing agents
Direct re-lithiation strategy for spent lithium iron phosphate battery in Li-based eutectic using organic reducing agents Open
Spent LiFePO 4 cathode materials were delaminated by immersion in water and re-lithiated via reduction using hydroquinone in a lithium acetate DES at room temperature without special safety considerations.
View article: Understanding the limits of Li-NMC811 half-cells
Understanding the limits of Li-NMC811 half-cells Open
Half-cell studies are widely employed to assess the performance of prospective positive electrode chemistries. In this study, we explore the failure mechanism of Li-NMC811 half-cells and propose an alternative cell chemistry for isolated, …
View article: Onset Potential for Electrolyte Oxidation and Ni-Rich Cathode Degradation in Lithium-Ion Batteries
Onset Potential for Electrolyte Oxidation and Ni-Rich Cathode Degradation in Lithium-Ion Batteries Open
High-capacity Ni-rich layered metal oxide cathodes are highly desirable to increase the energy density of lithium-ion batteries. However, these materials suffer from poor cycling performance, which is exacerbated by increased cell voltage.…
View article: Aerosol Jet Printing as a Versatile Sample Preparation Method for <i>Operando</i> Electrochemical TEM Microdevices
Aerosol Jet Printing as a Versatile Sample Preparation Method for <i>Operando</i> Electrochemical TEM Microdevices Open
Operando electrochemical transmission electron microscopy (ec‐TEM) is a promising tool for advanced characterization of energy systems close to their operating conditions. However, reliable sample preparation for the technique is particula…
View article: Onset potential for electrolyte oxidation and Ni-rich cathode degradation in lithium-ion batteries
Onset potential for electrolyte oxidation and Ni-rich cathode degradation in lithium-ion batteries Open
High-capacity Ni-rich layered metal oxide cathodes are highly desirable to increase the energy density of lithium-ion batteries. However, these materials suffer from poor cycling performance, which is exacerbated by increased cell voltage.…
View article: Synthesis of high-density olivine LiFePO4 from paleozoic siderite FeCO3 and its electrochemical performance in lithium batteries
Synthesis of high-density olivine LiFePO4 from paleozoic siderite FeCO3 and its electrochemical performance in lithium batteries Open
The lithium-ion cathode material olivine LiFePO4 (LFP) has been synthesized for the first time from natural paleozoic iron carbonate (FeCO3). The ferrous carbonate starting material consists of the mineral siderite at about 92 wt. % purity…
View article: Hollow-core optical fibre sensors for operando Raman spectroscopy investigation of Li-ion battery liquid electrolytes
Hollow-core optical fibre sensors for operando Raman spectroscopy investigation of Li-ion battery liquid electrolytes Open
Improved analytical tools are urgently required to identify degradation and failure mechanisms in Li-ion batteries. However, understanding and ultimately avoiding these detrimental mechanisms requires continuous tracking of complex electro…
View article: Electrolyte Reactivity at the Charged Ni-Rich Cathode Interface and Degradation in Li-Ion Batteries
Electrolyte Reactivity at the Charged Ni-Rich Cathode Interface and Degradation in Li-Ion Batteries Open
The chemical and electrochemical reactions at the positive electrode-electrolyte interface in Li-ion batteries are hugely influential on cycle life and safety. Ni-rich layered transition metal oxides exhibit higher interfacial reactivity t…
View article: A Combined Lithium Intercalation and Plating Mechanism Using Conductive Carbon‐Fiber Electrodes
A Combined Lithium Intercalation and Plating Mechanism Using Conductive Carbon‐Fiber Electrodes Open
Lithium‐metal anodes (LMAs) are desirable for next‐generation rechargeable batteries because of their high energy density. However, in practical applications they are hindered by inhomogeneous and uncontrolled lithium‐dendrite deposition d…
View article: Cycle-Induced Interfacial Degradation and Transition-Metal Cross-Over in LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub>–Graphite Cells
Cycle-Induced Interfacial Degradation and Transition-Metal Cross-Over in LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub>–Graphite Cells Open
Ni-rich lithium nickel manganese cobalt (NMC) oxide cathode materials promise Li-ion batteries with increased energy density and lower cost. However, higher Ni content is accompanied by accelerated degradation and thus poor cycle lifetime,…
View article: A mechanistic study of the dopant-induced breakdown in halide perovskites using solid state energy storage devices
A mechanistic study of the dopant-induced breakdown in halide perovskites using solid state energy storage devices Open
Elucidating and quantifying the effects of doping on halide perovskites using lithium ion batteries.
View article: Surface reduction in lithium- and manganese-rich layered cathodes for lithium ion batteries drives voltage decay
Surface reduction in lithium- and manganese-rich layered cathodes for lithium ion batteries drives voltage decay Open
Surface reduction leads to voltage decay in extended cycling of Li - and Mn-rich layered oxides (Li 1.2 Ni 0.2 Mn 0.6 O 2 ).
View article: Electrolyte reactivity at the charged Ni-rich cathode interface and degradation in Li-ion batteries
Electrolyte reactivity at the charged Ni-rich cathode interface and degradation in Li-ion batteries Open
The chemical and electrochemical reactions at the positive electrode-electrolyte interface in Li-ion batteries are hugely influential on cycle life and safety. Ni-rich layered transition metal oxides exhibit higher interfacial reactivity t…
View article: In Situ and Operando Analyses of Reaction Mechanisms in Vanadium Oxides for Li‐, Na‐, Zn‐, and Mg‐Ions Batteries
In Situ and Operando Analyses of Reaction Mechanisms in Vanadium Oxides for Li‐, Na‐, Zn‐, and Mg‐Ions Batteries Open
Due to their diversity in the composition, lattice structures and physical/chemical properties, and various oxidation states (2+, 3+, 4+, and 5+), (V x O y ) nanomaterials have attached much attention for developing new rechargeable batter…
View article: Cathode pre-lithiation/sodiation for next-generation batteries
Cathode pre-lithiation/sodiation for next-generation batteries Open
View article: Operando Raman analysis of electrolyte changes in Li-ion batteries with hollow-core optical fibre sensors
Operando Raman analysis of electrolyte changes in Li-ion batteries with hollow-core optical fibre sensors Open
New methods are urgently required to identify degradation and failure mechanisms in high energy density energy storage materials such as Ni-rich LiNi 0.8 Mn 0.1 Co 0.1 O 2 cathodes (NMC811) for Li-ion batteries. Understanding and ultimatel…