Battery Technology

Energy storage is a very important topic in the current development towards implementation of more renewable energy sources. Batteries is one means for storing energy, and batteries can be used not just for energy storage from renewable sources like wind and solar power, but are also vital in the development of zero emission transport as well as powering all types of portable electronic devices. The current research on battery technology at the Department of Materials Science and Engineering was started in 2008 and has mainly focused on Li-ion technology. However, recently the research has also evolved to include Mg-ion batteries and Li-air batteries. The main focus has been on materials development for cathodes (various transition metal oxides), but also work on anodes (carbons, silicon and silica) and electrolytes has become more important. The battery research activities are performed in close collaboration with the Electrochemistry Research Group and can be summarized in the following main activities:

  • Development of cathode materials for Li-ion batteries based on transition metal orthosilicates (Li2MSiO4 where M = Mn, Fe, Co). Contact: Fride Vullum-Bruer
  • Modification and characterization of carbon based anodes for Li-ion batteries. Contact: Fride Vullum-Bruer (and Ann Mari Svensson)
  • Modification of electrolytes for Li-ion batteries and characterization of temperature dependent properties. Contact: Fride Vullum-Bruer (and Ann Mari Svensson)
  • In situ XRD of anodes and cathodes during electrochemical cycling. Contact: Fride Vullum-Bruer
  • Development of new anode materials for Li-ion batteries based on SiO2 and Si. Contact: Fride Vullum-Bruer (and Ann Mari Svensson)
  • Development of new cathode materials for Mg-ion batteries based on spinels of Fe, Co and Mn, and spinel/graphene composites. Contact: Fride Vullum-Bruer
  • Synthesis and characterization of electrolytes and cathode materials for Li-air batteries. Contact: Fride Vullum-Bruer (and Ann Mari Svensson)


Li2MnSiO4/C composite powder made by flame spray pyrolysis. Figure a) shows the small and homogeneous particle size and b) clearly shows the amorphous carbon coating (adapted from ref. 9 below).

Rate capability of Li2MnSiO4/C composite made by flame spray pyrolysis (adapted from ref. 9 below).


Recent relevant publications:

1.     C. E. Lie Foss, A. M. Svensson, S. Sunde, and F. Vullum-Bruer. Electrochemical impedance spectroscopy of a porous graphite electrode used for Li-ion batteries with EC/PC based electrolytes. ECS Transactions  41 (21) 2012: 1-6 doi: 10.1149/1.3695095

2.     Haitao Zhou, Mari-Ann Einarsrud, and Fride Vullum-Bruer. High capacity nanostructured Li2FexSiO4/C with Fe hyperstoichiometry for Li-ion batteries. J. of Power Sources 2013, pp. 234-242 DOI: 10.1016/j.jpowsour.2013.02.023

3.     Haitao Zhou, Mari-Ann Einarsrud, Fride Vullum-Bruer. In situ XRD and EIS of a nanoporous Li2FeSiO4/C cathode during the initial charge/discharge cycle of a Li-ion battery. J. of Power Sources 2013, DOI: 10.1016/j.jpowsour.2013.03.193

4.     Haitao Zhou, Fengliu Long, Mari-Ann Einarsrud, De Chen, Fride Vullum-Bruer. 3D Aligned-Carbon-Nanotubes@Li2FeSiO4 arrays for high rate capability cathodes for Li-ion batteries. Nanotechnology 24 (2013) 435703 (11pp), DOI:10.1088/0957-4484/24/43/435703

5.     Huaquan Lu, Haitao Zhou, Ann Mari Svensson, Anita Fossdal, Edel Sheridan, Shigang Lu, Fride Vullum-Bruer. High capacity Li[Ni0.8Co0.1Mn0.1]O2 synthesized by sol-gel and co-precipitation methods as cathode materials for lithium-ion batteries. Solid State Ionics 249-250, 2013: 105-111, DOI: 10.1016/j.ssi.2013.07.023

6.     N. Wagner, A. Dalod, A.-M. Svensson and F. Vullum-Bruer. Fe and V Substituted Li2MnSiO4/C as Potential Cathode Material for Li-ion Batteries. ECS Transactions 2014, 64 (22) 2015: 33-45 doi: 10.1149/06422.0033ecst

7.     N. Wagner, A. M. Svensson and F. Vullum-Bruer. Effect of carbon content and annealing atmosphere on phase purity and morphology of Li2MnSiO4. Solid State Ionics 276, 2015: 26–32, DOI: 10.1016/j.ssi.2015.03.029

8.     X. Chen, F. L. Bleken, O. M. Løvvik, and F. Vullum-Bruer. Comparing electrochemical perormance of transition metal silicate cathodes and chevrel phase Mo6S8 in the analogous rechargeable Mg-ion battery system. Journal of Power Sources.

9.     N. Wagner, A.-M. Svensson, and F. Vullum-Bruer. Liquid feed flame spray pyrolysis as alternative synthesis for electrochemically active nanosized Li2MnSiO4. Translational Materials Research

About us

Contact persons:

Professor Mari-Ann Einarsrud
Phone: +47 73 59 40 02

Professor Tor Grande
Phone: +47 73 59 40 84

Professor Kjell Wiik
Phone: +47 73 59 40 82

Assoc. Prof. Hilde Lea Lein
Phone: +47 73 55 08 80

 Assoc. Prof. Fride Vullum-Bruer
Phone: +47 73 59 39 76

Assoc. Prof. Sverre M. Selbach
Phone: +47 73 59 40 99

Assoc. Prof. Maria Benelmekki
Phone: +47 73 59 40 05

Assoc. Prof. Dennis Meier
Phone: +47 73 59 40 47


Assoc. Prof. Sondre K. Schnell
Phone: +47 45 27 54 63

Visiting address:
Sem Sælandsvei 12

Postal address:
Inorganic Chemistry and Ceramics Research Group
att: Mari-Ann Einarsrud
Department of Materials Science and Engineering