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Alexander C. Kozen

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Alexander C. Kozen
NationalityAmerican
OccupationMaterials scientist, academic researcher
Known forResearch on solid-state electrolytes, atomic layer deposition, and thin-film battery architectures

Alexander C. Kozen is an American materials scientist and academic researcher affiliated with the University of Vermont. His work centers on the chemistry and physics of solid-state energy storage materials, including solid electrolytes, thin-film battery architectures, and atomic layer deposition (ALD) coatings for advanced electrochemical devices.[1] Over the course of his research career he has authored or co-authored 66 publications that have collectively accumulated more than 2,300 citations, yielding an h-index of 18.[1]

Education

Kozen received a Bachelor of Arts in physics from Colby College and a Ph.D. in materials science and engineering from the University of Maryland, College Park.[2]

Career

Kozen holds a faculty or research position associated with the University of Vermont, where his scholarly output has been concentrated on the study of materials for energy storage and electrochemical devices.[1] His published record demonstrates sustained activity across multiple years, with papers appearing in journals dedicated to applied materials chemistry, energy storage, and electrochemistry, including ACS Applied Energy Materials, ACS Applied Materials and Interfaces, ChemSusChem, Batteries & Supercaps, Wear, Device, and Nano Energy.[3][4][5][6][7][8][9][10]

His research portfolio also includes contributions presented as invited talks and conference abstracts at meetings of the Electrochemical Society (ECS), indicating engagement with the broader electrochemistry and materials science research community.[11][12]

Research

Kozen's research addresses fundamental and applied questions in the design, synthesis, and characterization of materials used in next-generation energy storage devices, with particular attention to solid-state batteries and electrochemical thin films.

Solid-state electrolytes

A substantial portion of Kozen's published work investigates solid electrolyte materials, including sulfide-based argyrodite electrolytes and lithium-based superionic conductors. His 2025 study on hot-pressed argyrodite solid electrolyte powders demonstrated that ionic conductivities exceeding 2 mS/cm at 20 degrees Celsius could be achieved under low operating pressure, a finding relevant to the manufacturability of solid-state battery cells.[3] Related work published in ChemSusChem in 2024 characterized the chemical and electrochemical stability of hot-pressed Li6PS5Cl solid-state electrolyte, showing that high ionic conductivity could be maintained independent of applied operating pressure, a result with direct implications for cell design and manufacturing tolerances.[5] This paper is among his more highly cited works, having accumulated 11 citations as of the most recent tracked period.[5]

Kozen has also examined degradation mechanisms in solid electrolytes such as Li10GeP2S12 (LGPS), a lithium superionic conductor of interest for solid-state battery applications. His 2023 study in ACS Applied Energy Materials reported that an elastomeric artificial solid electrolyte interphase could suppress both electrochemical and chemical degradation pathways in LGPS, a contribution aimed at improving the long-term cycling stability of solid-state cells using this electrolyte.[8]

Solid-state battery architectures and interfaces

Another line of research addresses the physical and chemical behavior of interfaces within solid-state battery cells. A 2023 paper published in ACS Applied Materials and Interfaces investigated dynamic intermixing between electrode and electrolyte materials in solid-state sodium nano-batteries, examining how interfacial evolution during cycling affects device performance.[7] This work has been cited 12 times, making it one of his more widely cited recent contributions.[7] Kozen has extended this interest in interfacial phenomena to invited presentations discussing nanostructured solid-state battery architectures enabled by atomic layer deposition, as well as conference contributions on the effect of applied mechanical stress on interfacial kinetics and ionic conductivity in thin-film solid-state batteries.[11][12]

Atomic layer deposition and thin-film coatings

Atomic layer deposition (ALD) and related vapor-phase deposition techniques form a recurring methodological thread in Kozen's research. His 2024 paper in Batteries & Supercaps reported the use of advanced molecular layer deposition to apply SixZnyOz thin-film coatings to NMC811 cathode material, with the goal of improving electrochemical performance and cycling stability of nickel-rich cathode particles.[4] In a separate study published in the journal Wear in 2023, Kozen and collaborators examined how deposition temperature during plasma-enhanced atomic layer deposition (PEALD) of titanium vanadium nitride thin films affects both the wear behavior and material properties of the resulting coatings, a study cited 10 times as of the most recent tracking period.[6]

Electrochemically tunable metal oxide devices

More recently, Kozen's research has expanded into the characterization of electrochemically tunable metal oxide nanostructures with applications in energy and computing devices. A 2026 paper published in the journal Device examined how structural design and programming approaches affect the dynamic range and performance of anatase TiO2 electrochemical random-access memory (ECRAM) devices, a class of materials relevant to neuromorphic and analog computing applications.[9] A related 2026 paper in Nano Energy reported in situ electronic characterization of electrochemically tunable metal oxide nanostructures using inverted scanning tunneling spectroscopy, a technique used to probe local electronic structure changes during electrochemical cycling.[10]

Recognition

Kozen's research output has generated substantial citation impact within the materials science and electrochemistry research communities. As tracked by Semantic Scholar, his body of work encompassing 66 publications has been cited over 2,380 times in total, corresponding to an h-index of 18.[1] Several of his papers on solid-state electrolytes and battery interfaces, including his 2023 studies on sodium nano-batteries and hot-pressed Li6PS5Cl electrolytes, rank among his most cited contributions, reflecting continued interest in solid-state battery materials within the broader energy storage research field.[7][5]

Publications

Selected publications by Alexander C. Kozen include:

  • Maximizing dynamic range and performance of anatase TiO2 ECRAM through structure and programming. Device (2026).[9]
  • In Situ Electronic Characterization of Electrochemically Tunable Metal Oxide Nanostructures for Energy Applications via Inverted Scanning Tunneling Spectroscopy. Nano Energy (2026).[10]
  • Hot Pressing Argyrodite Solid Electrolyte Powders Results in >2 mS cm–1 Ionic Conductivity at 20 °C and <1 MPa Operating Pressure. ACS Applied Energy Materials (2025).[3]
  • Advanced Molecular Layer Deposition of SixZnyOz Thin Film Coatings for Improved Electrochemical Performance of NMC811. Batteries & Supercaps (2024).[4]
  • Chemical and Electrochemical Characterization of Hot-Pressed Li6PS5Cl Solid State Electrolyte: Operating Pressure-Invariant High Ionic Conductivity.
  1. ↑ 1.0 1.1 1.2 1.3 Semantic Scholar author profile: Alexander C. Kozen.
  2. ↑ Alexander C. Kozen, faculty profile, Department of Physics, University of Vermont, https://www.uvm.edu/cems/physics/profile/alexander-c-kozen
  3. ↑ 3.0 3.1 3.2 Hot Pressing Argyrodite Solid Electrolyte Powders Results in >2 mS cm–1 Ionic Conductivity at 20 °C and <1 MPa Operating Pressure. ACS Applied Energy Materials, 2025.
  4. ↑ 4.0 4.1 4.2 Advanced Molecular Layer Deposition of SixZnyOz Thin Film Coatings for Improved Electrochemical Performance of NMC811. Batteries & Supercaps, 2024.
  5. ↑ 5.0 5.1 5.2 5.3 Chemical and Electrochemical Characterization of Hot-Pressed Li6PS5Cl Solid State Electrolyte: Operating Pressure-Invariant High Ionic Conductivity. ChemSusChem, 2024.
  6. ↑ 6.0 6.1 Effects of Deposition Temperature on the Wear Behavior and Material Properties of Plasma Enhanced Atomic Layer Deposition (PEALD) Titanium Vanadium Nitride Thin Films. Wear, 2023.
  7. ↑ 7.0 7.1 7.2 7.3 Dynamic Electrode-Electrolyte Intermixing in Solid-State Sodium Nano-Batteries. ACS Applied Materials and Interfaces, 2023.
  8. ↑ 8.0 8.1 Suppression of Electrochemical and Chemical Degradation of Li10GeP2S12 by an Elastomeric Artificial Solid Electrolyte Interphase. ACS Applied Energy Materials, 2023.
  9. ↑ 9.0 9.1 9.2 Maximizing dynamic range and performance of anatase TiO2 ECRAM through structure and programming. Device, 2026.
  10. ↑ 10.0 10.1 10.2 In Situ Electronic Characterization of Electrochemically Tunable Metal Oxide Nanostructures for Energy Applications via Inverted Scanning Tunneling Spectroscopy. Nano Energy, 2026.
  11. ↑ 11.0 11.1 (Invited) Nanostructured Solid State Battery Architectures Enabled by Atomic Layer Deposition. ECS Meeting Abstracts, 2023.
  12. ↑ 12.0 12.1 Effect of Applied Stress on the Interfacial Kinetics, Ionic Conductivity, and Other Phenomena in Thin-Film Solid-State Batteries. ECS Meeting Abstracts, 2023.
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