Abstract
Abstract We report an organogel electrolyte for lithium (Li)-ion batteries based on tetra-arm poly(ethylene glycol) (TetraPEG) network and highly concentrated electrolyte using nonflammable solvent, tris (2,2,2-trifluoroethyl) phosphate. The gel electrolyte was obtained via a Michael addition reaction between maleimide (MA)-terminated and thiol (SH)-terminated TetraPEGs, which was characterized via chemical reaction kinetics. The resulting TetraPEG gels with an ideal polymer network exhibited comparable ionic conductivity to the corresponding liquid electrolytes and reversible electrode reaction for graphite negative electrode.
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