Photoinduced free radical polymerization of thermoset lithium battery electrolytes

Series of solid poly(ethylene oxide)-methacrylate electrolytes have successfully been manufactured with an aim to serve in a multifunctional battery both as mechanical load carrier as well as lithium ion conductor. The electrolytes produced, in a solvent free process with no post cure swelling, hold a broad range of both mechanical as well as ion conducting properties. The monomer and Li-salt mixtures have been irradiated with UV light, initiating free radical polymerization to obtain solid smooth, homogenous specimens to be utilized as ion conducting electrolytes. The storage modulus at 20 degrees C is ranging from 1 MPa to almost 2 GPa. The conducting ability of the electrolyte ranges from 5.8 x 10(-10) up to 1.5 x 10(-6) S/cm. These large variations in both mechanical properties as well as ionic conductivity are discussed, but also the versatility within the production technique is emphasized.

Av författaren/redakt...: Willgert, Markus; Kjell, Maria H.; Jacques, Eric; Behm, Mårten; Lindbergh, N. Gö ...; Johansson, Mats

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Kemiteknik; och Polymerteknologi

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