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Battery Materials

Li-ion batteries are currently being developed for a variety of different applications ranging from laptop computers, mobile phones and power tools to hybrid and electric cars. The performance of the batteries is to a large degree dictated by the functional materials used as cathode and anode, which dictate power contents, battery lifetime, recharge efficiency etc. Much attention is therefore given to the development of new and improved compounds.

In Center for Energy Materials, we are studying a large range of different materials for Li ion batteries. We are studying how novel environmentally benign, low cost synthesis methods can be used in the production of nanomaterials for both the Li-ion battery anode and cathode.  The performance of the materials is tested in our battery lab using coin cells. In other words CEM encompasses and supports a very effective in-house evaluation cycle of

1.    Synthesis of battery material X
2.    Use X for the construction of actual batteries
3.    Testing of battery performance, thus assessing the quality of X
4.    Modifications to synthesis, new cycle begins

Along the way, detailed structural investigations of the crystal- and nanostructure using both X-ray and neutron scattering, electron microscopy and a range of other characterization techniques are used to link the performance with the structure of the materials.  The approach yields a deep and unprecedented understanding of important functional materials.