Crop-derived starch component serves as high-performance Li-ion electrode binder
23 November 2012
A team from the Tokyo University of Science and Japan Synchrotron Radiation Research Institute (JASRI) reports that the use of a crop-derived polysaccharide as a binder in silicon-graphite electrodes “drastically” improves electrode performance compared to the conventional binder PVdF.
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A paper on their work is published in the journal ChemSusChem.
The researchers used a slurry of amylopectin—a soluble polysaccharide and highly branched polymer of glucose, and one of the two main components of starch derived from agricultural products such as corn, potato and rice. They suggested that the improved performance is coupled to the degree of branching.
Murase, M., Yabuuchi, N., Han, Z.-J., Son, J.-Y., Cui, Y.-T., Oji, H. and Komaba, S. (2012), Crop-Derived Polysaccharides as Binders for High-Capacity Silicon/Graphite-Based Electrodes in Lithium-Ion Batteries. ChemSusChem. doi: 10.1002/cssc.201200650
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