Habtom Desta Asfaw

Researcher at Department of Chemistry - Ångström Laboratory, Structural Chemistry

Email:
habtom.desta.asfaw[AT-sign]kemi.uu.se
Visiting address:
Lägerhyddsvägen 1

Postal address:
Box 538
751 21 Uppsala
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Short presentation

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.

Keywords: 3d microbatteries raman spectroscopy electrochemistry lithium- sodium- and potassium-ion batteries dual-ion batteries carbon materials hard carbons graphite

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.

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.

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