L. D. Ellis
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View article: White line disease in a 19-year-old appendix mare.
White line disease in a 19-year-old appendix mare. Open
A 19-year-old appendix mare was presented with severe, acute right forelimb lameness and a history of significant hoof wall defect. The defect began as progressive toe separation affecting the dorsal hoof wall, which was eventually resecte…
View article: Toward electrochemical synthesis of cement—An electrolyzer-based process for decarbonating CaCO <sub>3</sub> while producing useful gas streams
Toward electrochemical synthesis of cement—An electrolyzer-based process for decarbonating CaCO <sub>3</sub> while producing useful gas streams Open
Cement production is currently the largest single industrial emitter of CO 2 , accounting for ∼8% (2.8 Gtons/y) of global CO 2 emissions. Deep decarbonization of cement manufacturing will require remediation of both the CO 2 emissions due …
View article: 1,2,6-Oxadithiane 2,2,6,6-tetraoxide as an Advanced Electrolyte Additive for Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells
1,2,6-Oxadithiane 2,2,6,6-tetraoxide as an Advanced Electrolyte Additive for Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells Open
1,2,6-oxadithiane 2,2,6,6-tetraoxide (ODTO) as a novel electrolyte additive was evaluated in both uncoated and coated single crystal Li[Ni0.5Mn0.3Co0.2]O2/graphite pouch cells with 1.2M LiPF6 in ethylene carbonate (EC): ethyl methyl carbon…
View article: LiPO<sub>2</sub>F<sub>2</sub>as an Electrolyte Additive in Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells
LiPO<sub>2</sub>F<sub>2</sub>as an Electrolyte Additive in Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells Open
The effect of LiPO2F2 as an electrolyte additive in Li[Ni0.5Mn0.3Co0.2]O2 (NMC532)/graphite pouch cells was examined using ultra high precision coulometry (UHPC), electrochemical impedance spectroscopy (EIS), storage testing, gas evolution…
View article: The Effect of Methyl Acetate, Ethylene Sulfate, and Carbonate Blends on the Parasitic Heat Flow of NMC532/Graphite Lithium Ion Pouch Cells
The Effect of Methyl Acetate, Ethylene Sulfate, and Carbonate Blends on the Parasitic Heat Flow of NMC532/Graphite Lithium Ion Pouch Cells Open
The formulation of solvent systems can have a severe impact on the lifetime, rate performance, and temperature performance of lithium ion cells. Methyl acetate (MA) has been found to increase rate and temperature performance of carbonate s…
View article: Some Physical Properties of Ethylene Carbonate-Free Electrolytes
Some Physical Properties of Ethylene Carbonate-Free Electrolytes Open
Physical properties of LiPF6 in ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC) electrolytes were studied by conductivity measurements, Fourier transform infrared spectroscopy (FT-IR) and differential thermal analysis (DTA). Cond…
View article: A New Method for Determining the Concentration of Electrolyte Components in Lithium-Ion Cells, Using Fourier Transform Infrared Spectroscopy and Machine Learning
A New Method for Determining the Concentration of Electrolyte Components in Lithium-Ion Cells, Using Fourier Transform Infrared Spectroscopy and Machine Learning Open
A new method is introduced for determining unknown concentrations of major components in typical lithium-ion battery electrolytes. The method is quick, cheap, and accurate. Machine learning techniques are used to match features of the Four…
View article: High-Precision Coulometry Studies of the Impact of Temperature and Time on SEI Formation in Li-Ion Cells
High-Precision Coulometry Studies of the Impact of Temperature and Time on SEI Formation in Li-Ion Cells Open
Electrolyte reacts at the surfaces of charging electrodes during the first cycle of a Li-ion cell (formation). This creates the initial solid electrolyte interphases (SEIs), which passivate the electrodes against further reactions with ele…
View article: Combinations of LiPO<sub>2</sub>F<sub>2</sub>and Other Electrolyte Additives in Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells
Combinations of LiPO<sub>2</sub>F<sub>2</sub>and Other Electrolyte Additives in Li[Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>]O<sub>2</sub>/Graphite Pouch Cells Open
Lithium difluorophosphate (LiPO2F2) is a useful electrolyte additive for Li-ion cells. In this study, combinations of several selected additives and LiPO2F2 were explored in Li[Ni0.5Mn0.3Co0.2]O2 (NMC532)/graphite pouch cells using high te…
View article: Effects of Surface Coating on Gas Evolution and Impedance Growth at Li[Ni<sub>x</sub>Mn<sub>y</sub>Co<sub>1-x-y</sub>]O<sub>2</sub>Positive Electrodes in Li-Ion Cells
Effects of Surface Coating on Gas Evolution and Impedance Growth at Li[Ni<sub>x</sub>Mn<sub>y</sub>Co<sub>1-x-y</sub>]O<sub>2</sub>Positive Electrodes in Li-Ion Cells Open
The effects of surface coatings on Li[NixMnyCoz]O2 (NMC, x+y+z = 1, x:y:z = 4:4:2 (NMC442), x:y:z = 5:3:2 (NMC532), x:y:z = 6:2:2 (NMC622)) electrodes in pouch cells and pouch bags, containing electrolyte with a certain additive blend, wer…
View article: Quantifying, Understanding and Evaluating the Effects of Gas Consumption in Lithium-Ion Cells
Quantifying, Understanding and Evaluating the Effects of Gas Consumption in Lithium-Ion Cells Open
Lithium-ion cells produce a considerable amount of gas in their first cycle. If the gases are not removed in a degassing step, most are consumed by the cell over time. This phenomenon has never been investigated explicitly in the literatur…
View article: Using the Charge-Discharge Cycling of Positive Electrode Symmetric Cells to Find Electrolyte/Electrode Combinations with Minimum Reactivity
Using the Charge-Discharge Cycling of Positive Electrode Symmetric Cells to Find Electrolyte/Electrode Combinations with Minimum Reactivity Open
The effects of solvents, salts, electrolyte additives and surface coatings on LiNi0.4Mn0.4Co0.2O2 (NMC442) or LiNi0.6Mn0.2Co0.2O2 (NMC622) have been probed using positive electrode Li-ion symmetric cells coupled with dV/dQ analysis. A robu…
View article: Measuring Oxygen Release from Delithiated LiNi<sub>x</sub>Mn<sub>y</sub>Co<sub>1-x-y</sub>O<sub>2</sub>and Its Effects on the Performance of High Voltage Li-Ion Cells
Measuring Oxygen Release from Delithiated LiNi<sub>x</sub>Mn<sub>y</sub>Co<sub>1-x-y</sub>O<sub>2</sub>and Its Effects on the Performance of High Voltage Li-Ion Cells Open
There can be a trade-off between the lifetime and energy density of LiNixMnyCo1-x-yO2 (NMC)-containing cells that depends on their upper cutoff voltage. This work applies thermogravimetric analysis coupled with mass spectrometry (TGA-MS) t…
View article: Synergistic Effect of LiPF<sub>6</sub>and LiBF<sub>4</sub>as Electrolyte Salts in Lithium-Ion Cells
Synergistic Effect of LiPF<sub>6</sub>and LiBF<sub>4</sub>as Electrolyte Salts in Lithium-Ion Cells Open
Recent work shows promise for LiBF4 as an electrolyte salt for high voltage lithium-ion batteries. LiBF4 is more hydrolytically stable than LiPF6, and in some cases has proved to be more stable at high voltage. This work shows that 1.0 M e…
View article: The Solid-Electrolyte Interphase Formation Reactions of Ethylene Sulfate and Its Synergistic Chemistry with Prop-1-ene-1,3-Sultone in Lithium-Ion Cells
The Solid-Electrolyte Interphase Formation Reactions of Ethylene Sulfate and Its Synergistic Chemistry with Prop-1-ene-1,3-Sultone in Lithium-Ion Cells Open
Electrolyte additives are a promising route to stable solution chemistries needed for improved and next-generation lithium-ion cells. Yet the underlying chemistry remains unknown for most additives and additive blends in use. This work pre…
View article: Studies of Gas Generation, Gas Consumption and Impedance Growth in Li-Ion Cells with Carbonate or Fluorinated Electrolytes Using the Pouch Bag Method
Studies of Gas Generation, Gas Consumption and Impedance Growth in Li-Ion Cells with Carbonate or Fluorinated Electrolytes Using the Pouch Bag Method Open
Li[Ni0.42Mn0.42Co0.16]O2 (NMC442)/graphite pouch cells with an ethylene carbonate-containing or a fluorinated electrolyte were used to prepare charged electrodes for studies using "pouch bags". Sealed pouch bags containing either lithiated…
View article: Rapid Impedance Growth and Gas Production at the Li-Ion Cell Positive Electrode in the Absence of a Negative Electrode
Rapid Impedance Growth and Gas Production at the Li-Ion Cell Positive Electrode in the Absence of a Negative Electrode Open
The effects of electrolyte additives on gas evolution, gas consumption and impedance growth at elevated temperature have been studied using Li[Ni0.42Mn0.42Co0.16]O2 (NMC442)/graphite pouch cells and pouch bags containing delithiated NMC442…
View article: Surface-Electrolyte Interphase Formation in Lithium-Ion Cells Containing Pyridine Adduct Additives
Surface-Electrolyte Interphase Formation in Lithium-Ion Cells Containing Pyridine Adduct Additives Open
The use of electrolyte additives to form a passive solid-electrolyte interphase (SEI) at one or both electrodes is a common method for improving lithium-ion cell lifetime and performance. This work follows the chemical and electrochemical …
View article: Effect of Substituting LiBF<sub>4</sub>for LiPF<sub>6</sub>in High Voltage Lithium-Ion Cells Containing Electrolyte Additives
Effect of Substituting LiBF<sub>4</sub>for LiPF<sub>6</sub>in High Voltage Lithium-Ion Cells Containing Electrolyte Additives Open
This work evaluates the performance of LiBF4-containing electrolytes in lithium-ion cells charged to high voltages (>4.4 V) and explores the compatibility of LiBF4 with additives known to improve the performance of LiPF6-based electrolytes…