5 June 2014 Patternable gel electrolyte infiltrated into all-solid porous Li-ion electrodes
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Abstract
Gel electrolyte based on 1M LiPF6 in ethylene carbonate:dimethyl carbonate, polyethyleneglycol diacrylate oligomer, and 2,2′-azobis(2-methylpropionitrile) is infiltrated into porous sintered LiCoO2 electrodes and cured in situ. The associated batteries function well, which is consistent with microscopy observations indicating that the gel electrolyte penetrates the electrode well and wets to the electrode particles. Trimethyl silyl acrylate is used to functionalize glass substrates and will cross link with polyethyleneglycol diacrylate during curing to promote bonding between the substrate and the gel electrolyte. The functionalization can localize adhesion allowing the electrolyte to easily release from unfunctionalized glass, which can be used as a mold.
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Ke Sun, Shen J. Dillon, "Patternable gel electrolyte infiltrated into all-solid porous Li-ion electrodes", Proc. SPIE 9115, Energy Harvesting and Storage: Materials, Devices, and Applications V, 91150L (5 June 2014); doi: 10.1117/12.2057651; https://doi.org/10.1117/12.2057651
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