Nanostructured block copolymer electrolytes comprising soft conducting channels embedded in a hard insulating matrix were developed for rechargeable lithium batteries. In contrast to both current liquid and solid electrolytes, the ionic conductivity of the electrolyte increased with increasing molecular weight, thus enabling optimization of both its electrical and mechanical properties. The ability of block copolymer electrolytes to prevent the formation of lithium dendrites in demonstrated. The structure of the electrode-electrolyte interface before and after cycling was studied by electron microscopy.

Characterization of microstructured block copolymer electrolytes for lithium batteries

241st National Meeting (2011)

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