"> Mariya Kalapsazova – IGIC BAS


IGIC – BAS, "Acad. Georgi Bonchev" str. bld.11, room 323

Contact Information

Call: (+ 359) 2 979 39 04

Email: maria_l_k@svr.igic.bas.bg, maria.kalapsazova@gmail.com

Mariya Kalapsazova

Assist. Prof. Dr.

Link to:

Research interests

Solid state chemistry. Synthesis, structural and electrochemical characterization of sodium and lithium intercalation compounds (oxides) as electrode materials for rechargeable alkaline-ion batteries. Development of prospective ecological electrode materials for grid-scale energy storage applications. Purposeful modification of layered oxides for improving their electrochemical performance.

Selected publications

  1. М. Kalapsazova; H. Rasheev; E. Zhecheva; A. Tadjer and R. Stoyanova,
    Insights into the Function of Electrode and Electrolyte Materials in a Hybrid Lithium-Sodium Ion Cell”, 
    Journal of Physical Chemistry C 123 (2019), 11508-11521.
  2. M. Kalapsazova, S. Ivanova, R. Kukeva, S. Simova, S. Wegner, E. Zhecheva and R. Stoyanova,
    Combined use of EPR and 23Na MAS NMR spectroscopy for assessing the properties of mixed cobalt-nickel-manganese layers of P3-NayCo1-2xNixMnxO2”,
    Physical Chemistry Chemical Physics 19 (2017), 27065-27073.
  3. M. Kalapsazova, E. Zhecheva, G. Tyuliev, D. Nihtianova, L. Mihaylov and R. Stoyanova,
    Effect of the particle size distribution and of the electrolyte salt on the intercalation properties of P3- Na2/3Ni1/2Mn1/2O2” ,
    Journal of Physical Chemistry C 121 (11), (2017), 5931-5940.
  4. M. Kalapsazova, M., G. F. Ortiz , J. L.Tirado, O.Dolotko,  E. Zhecheva,  D. Nihtyanova,  L. Mihaylov and R. Stoyanova, 
    P3-type of layered sodium-deficient nickel-manganese oxides: a flexible structural matrix for reversible sodium and lithium intercalation“,
    ChemPlusChem 80 (11), (2015), 1642-1656.
  5. M. Kalapsazova, R. Stoyanova, E. Zhecheva, G. Tyuliev and D.Nihtianova, 
    Sodium deficient nickel-manganese oxides as intercalation electrodes in lithium ion batteries“,
    Journal of Materials Chemistry A 2, (2014), 19383-19395.

Professional experience:

  1. 2008

    Batchelor, specialty “Organic Chemical Technology”

    University of Chemical Technology and Metallurgy, Sofia;
  2. 2009

    Master, specialty „Pulp, paper and packages“

    University of Chemical Technology and Metallurgy, Sofia;
  3. 2017

    PhD, professional field Chemical Sciences (Solid State Chemistry)

  4. 2019

    Assistant Professor, professional field Chemical Sciences (Solid State Chemistry), Lab. “Intermetallics and intercalation materials”



  • Germany
    Institute Ulm, Electrochemical Energy Storage, Ulm, DAAD „Research Grants for Doctoral Candidates and Young Academics and Scientists
  • Spain
    Universidad de Córdoba
  • Germany
    Technische Universität Dresden