Renewable lithium-ion batteries are promising sustainable alternatives to non-renewable energy resources like petroleum. However, safety concerns, electrochemical stability, and narrow temperature range of operation remain persisting challenges that impede their prominence. In order to circumvent these shortcomings, we will describe herein a new class of lithium ion electrolytes composed of perfluoropolyethers (PFPE) and poly(ethylene oxide) (PEO) mixtures. These polymeric blends are amphiphilic, transparent, homogeneous and demonstrate the ability to solvate different lithium salts. The flammability, degree of crystallinity, ionic conductivity and electrochemical stability of these carbonate-free systems will be discussed.

New low-temperature, non-flammable polyelectrolyte systems for lithium ion batteries

245th National Meeting (2013)

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