Killian Stokes
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View article: Realization of Aqueous Processed LiNi <sub>0.5</sub> Mn <sub>1.5</sub> O <sub>4</sub> through the pH Optimization of Polyacrylate Binders
Realization of Aqueous Processed LiNi <sub>0.5</sub> Mn <sub>1.5</sub> O <sub>4</sub> through the pH Optimization of Polyacrylate Binders Open
The transition to aqueous cathode processing is essential for achieving sustainable lithium‐ion battery production. Replacing the widely used solvent, N ‐methyl‐2‐pyrrolidone (NMP), with water poses challenges, particularly due to rapid pH…
View article: Comparative Study of High Voltage Spinel∥Lithium Titanate Lithium‐ion Batteries in Ethylene Carbonate Free Electrolytes
Comparative Study of High Voltage Spinel∥Lithium Titanate Lithium‐ion Batteries in Ethylene Carbonate Free Electrolytes Open
A persistent obstacle towards the realization of high voltage cathodes is electrolyte instability where oxidation and transition metal dissolution manifest in rapid capacity failure with both issues connected to the presence of ethylene ca…
View article: Surface, Structural, and Electrochemical Analysis of High-Voltage Spinel Cathode LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Evolution Upon Ambient Storage Conditions
Surface, Structural, and Electrochemical Analysis of High-Voltage Spinel Cathode LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Evolution Upon Ambient Storage Conditions Open
Spinel LiNi 0.5 Mn 1.5 O 4 as one of the high-energy positive electrode materials for next generation Li-ion batteries has attracted significant interest due to its economic and environmental advantages. However, the sensitivity of this ty…
View article: Influence of Binder Crystallinity on the Performance of Si Electrodes with Poly(vinyl alcohol) Binders
Influence of Binder Crystallinity on the Performance of Si Electrodes with Poly(vinyl alcohol) Binders Open
Silicon is a highly promising electrode material for Li-ion batteries because of its high theoretical capacity, but severe volume changes during cycling leads to pulverization and rapid capacity fading. The use of alternative and water-sol…
View article: Direct Growth of Si, Ge, and Si–Ge Heterostructure Nanowires Using Electroplated Zn: An Inexpensive Seeding Technique for Li‐Ion Alloying Anodes
Direct Growth of Si, Ge, and Si–Ge Heterostructure Nanowires Using Electroplated Zn: An Inexpensive Seeding Technique for Li‐Ion Alloying Anodes Open
A scalable and cost‐effective process is used to electroplate metallic Zn seeds on stainless steel substrates. Si and Ge nanowires (NWs) are subsequently grown by placing the electroplated substrates in the solution phase of a refluxing or…
View article: Synthesis and Characterization of CuZnSe<sub>2</sub> Nanocrystals in Wurtzite, Zinc Blende, and Core–Shell Polytypes
Synthesis and Characterization of CuZnSe<sub>2</sub> Nanocrystals in Wurtzite, Zinc Blende, and Core–Shell Polytypes Open
CuZnSe2 (CZSe) is an important ternary semiconductor comprised of earth-abundant elements with a suitable bandgap for visible light absorption and structural/stoichiometric versatility that make it a promising candidate for photovoltaic ap…
View article: Copper Silicide Nanowires as Hosts for Amorphous Si Deposition as a Route to Produce High Capacity Lithium-Ion Battery Anodes
Copper Silicide Nanowires as Hosts for Amorphous Si Deposition as a Route to Produce High Capacity Lithium-Ion Battery Anodes Open
Herein, copper silicide (Cu15Si4) nanowires (NWs) grown in high densities from a metallic Cu substrate are utilized as nanostructured hosts for amorphous silicon (aSi) deposition. The conductive Cu15Si…
View article: Enhancing the performance of germanium nanowire anodes for Li-ion batteries by direct growth on textured copper
Enhancing the performance of germanium nanowire anodes for Li-ion batteries by direct growth on textured copper Open
Capacity retention of directly grown Ge nanowire anodes is enhanced by replacing stainless steel with textured Cu foil current collectors.
View article: Highlighting the Importance of Full-Cell Testing for High Performance Anode Materials Comprising Li Alloying Nanowires
Highlighting the Importance of Full-Cell Testing for High Performance Anode Materials Comprising Li Alloying Nanowires Open
Herein, the electrochemical performance of directly grown Ge nanowire anodes in full-cell Li-ion configurations (using lithium cobalt oxide cathodes) are examined. The impacts of voltage window, anode/cathode balancing and anode preconditi…
View article: Nanostructured architectures of silicon and germanium as high capacity, long cycle life lithium-ion battery electrodes
Nanostructured architectures of silicon and germanium as high capacity, long cycle life lithium-ion battery electrodes Open
This thesis describes the development of high-capacity, next generation Li-ion battery (LIB) electrodes based on nanostructured Li-alloying materials, silicon and germanium. The results chapters are arranged as research articles with intro…