Habtom Desta Asfaw
Forskare vid Institutionen för kemi - Ångström; Strukturkemi
- E-post:
- habtom.desta.asfaw@kemi.uu.se
- Besöksadress:
- Lägerhyddsvägen 1
- Postadress:
- Box 538
751 21 Uppsala
- ORCID:
- 0000-0001-5861-4281
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Kort presentation
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I am a researcher in the Department of Chemistry-Ångström Laboratory and my specialism is materials synthesis and electrode fabrication for use in electrochemical devices like batteries and supercapacitors.
Nyckelord
- 3d microbatteries
- carbon materials
- dual-ion batteries
- electrochemistry
- graphite
- hard carbons
- lithium- sodium- and potassium-ion batteries
- raman spectroscopy
Biografi
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Educational background
- PhD in materials chemistry (2012 up 2017), Uppsala University (Sweden)
- MSc in Materials for Energy Storage and Conversion (2010-2012), Universite de Toulouse: Paul Sabatier (France), Universite de Picardie: Jules Verne (France), Politechnika Warszawska (Poland) and Uppsala Universitet (Thesis project)
- MSc in Physical Chemistry (2009-2010) Addis Ababa University (Ethiopia)
- BSc in Applied Chemistry Ambo College-Jimma University (Ethiopia)
Work experience
- Researcher at Uppsala University, 2019-
- Postdoctoral researcher at Empa, Switzerland, 2018-2019
- Research Associate in Materials Chemistry, Department of Chemistry, Imperial College London, UK, 2017-2018
- Graduate Assistant: Ambo University (2007-2009)
My courses:
- Batteries and Storage (course responsible): https://www.uu.se/utbildning/kursplan?query=38010
I am also involved in lectures on materials chemistry and characterization.
Forskning
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Apart from intrinsic material characteristics, the performance of electrochemical systems is determined by the structure of electrodes (including particle morphology of active materials, porosity, and surface area), and stability of electrode-electrolyte interfaces. My current research focuses on the (1) fabrication of battery electrodes with controlled morphology and three-dimensional architectures in an effort to boost energy and power densities, and (2) understanding the nature and evolution of interfaces in such systems. I have worked on different research areas like the
- design and fabrication of 3D-microstructured electrodes for use in miniature devices,
- synthesis of carbon aerogels-reinforced carbon fibre fabric electrodes for structural supercapacitors
- design and characterization of lithium- and potassium-based dual-ion batteries,
- investigation of the stability of concentrated-salt electrolytes (HCEs) at high voltages, and
- stabilization of graphite-electrolyte interfaces in dual-ion batteries.
I have expertise in a variety of electrochemical and physical characterization techniques including gas adsorption analysis, electron microscopy, Raman and FTIR spectroscopy, XPS, XRD (powder and GIXRD), and so on.
Publikationer
Senaste publikationer
- Bio-based anode material production for lithium–ion batteries through catalytic graphitization of biochar (2024)
- Charting the course to solid-state dual-ion batteries (2023)
- Electrochemical performance of supercapacitor electrodes based on carbon aerogel-reinforced spread tow carbon fiber fabrics (2023)
- Development of P2 or P2/P3 cathode materials for sodium-ion batteries by controlling the Ni and Mn contents in Na0.7CoxMnyNizO2 layered oxide (2023)
- Monitoring Self-discharge in a Dual-ion Battery Using In Situ Raman Spectro-electrochemistry (2023)
Alla publikationer
Artiklar
- Bio-based anode material production for lithium–ion batteries through catalytic graphitization of biochar (2024)
- Charting the course to solid-state dual-ion batteries (2023)
- Electrochemical performance of supercapacitor electrodes based on carbon aerogel-reinforced spread tow carbon fiber fabrics (2023)
- Development of P2 or P2/P3 cathode materials for sodium-ion batteries by controlling the Ni and Mn contents in Na0.7CoxMnyNizO2 layered oxide (2023)
- Monitoring Self-discharge in a Dual-ion Battery Using In Situ Raman Spectro-electrochemistry (2023)
- From Waste Biomass to Hard Carbon Anodes (2023)
- Evaluating electrolyte additives in dual-ion batteries (2023)
- Impact of Binders on Self-Discharge in Graphite Dual-Ion Batteries (2023)
- Bio-derived hard carbon nanosheets with high rate sodium-ion storage characteristics (2022)
- A polymeric cathode-electrolyte interface enhances the performance of MoS2-graphite potassium dual-ion intercalation battery (2022)
- Ternary Ionogel Electrolytes Enable Quasi-Solid-State Potassium Dual-Ion Intercalation Batteries (2022)
- A Lignosulfonate Binder for Hard Carbon Anodes in Sodium-Ion Batteries (2021)
- Nature of the Cathode–Electrolyte Interface in Highly Concentrated Electrolytes Used in Graphite Dual-Ion Batteries (2021)
- Revealing capacity fading in Sb-based anodes using symmetric sodium-ion cells (2021)
- Facile synthesis of hard carbon microspheres from polyphenols for sodium-ion batteries (2020)
- Catalytically graphitized freestanding carbon foams for 3D Li-ion microbatteries (2020)
- Tailoring the Microstructure and Electrochemical Performance of 3D Microbattery Electrodes Based on Carbon Foams (2019)
- On the P2-NaxCo1−y(Mn2/3Ni1/3)yO2 Cathode Materials for Sodium-Ion Batteries (2018)
- Modeling 3D-microbatteries based on carbon foams (2018)
- Towards Solid-State 3D-Microbatteries using Functionalized Polycarbonate-based Polymer Electrolytes (2018)
- Over-Stoichiometric NbO2 Nanoparticles for a High Energy and Power Density Lithium Microbattery (2017)
- Boosting the thermal stability of emulsion–templated polymers via sulfonation (2016)
- A one-step water based strategy for synthesizing hydrated vanadium pentoxide nanosheets from VO2(B) as free-standing electrodes for lithium battery applications (2016)
- Encasing Si particles within a versatile TiO2−xFx layer as an extremely reversible anode for high energy-density lithium-ion battery (2016)
- Three-dimensional carbon foam supported tin oxide nanocrystallites with tunable size range (2015)
- A General Method to Fabricate Free-Standing Electrodes (2015)
- Nanosized LiFePO4-decorated emulsion-templated carbon foam for 3D micro batteries (2014)
- A Li-Ion Microbattery with 3D Electrodes of Different Geometries (2014)
- Emulsion-templated bicontinuous carbon network electrodes for use in 3D microstructured batteries (2013)
- Taming Interfaces to Design a High-Performance Potassium-based MoS2-Natural Graphite Dual-ion Battery
- Surface-oxidized NbO2 nanoparticles for high performance lithium microbatteries
- Emulsion-templated graphitic carbon foams with optimum porosity for 3D Li-ion microbatteries
- Conventional Additives in Unconventional Cell Chemistries: Pitfalls in Performance Evaluation of Dual-ion Batteries
- The Cathode Electrolyte Interphase on Graphite Positive Electrode in Dual-ion Batteries Probed Using X-ray Photoelectron Spectroscopy
- 3D Electrodes Fabricated from Nano-graphitic Carbon Foams with Enhanced Lithium-ion Storage
- Binder Impact on Self-Discharge in Graphite Dual-Ion Batteries
Böcker
Kapitel
Konferenser
- P-doped Hard Carbon as Anode Material for Sodium-ion Batteries (2019)
- CaS- and MgS-assisted graphitization of porous carbons for energy storage applications (2017)
- Mixed valence niobium oxides for high power 3D microbattery applications (2016)
- Development of freestanding electrodes for Li-ion anodes (2016)
- Designing 3D Microbatteries Using Emulsion-Templated Bicontinuous Carbon Foams with Optimum Void Sizes (2015)