Effects of Ethylene Glycol Chain Length of Single Ion Conducting Polymer Electrolytes on Ionic Conductivity in Lithium Ion Battery
발표자
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초록
내용
Single ion conducting polymer electrolytes (SIPEs) provide exclusive mobility to lithium ions through chemical attachment of an anion moiety to the polymer backbone. By constraining the formation of ion concentration gradients in the electrolyte, SIPEs effectively inhibit the formation of lithium dendrites during cycles, enhancing battery safety. Furthermore, the efficient ion transport within the polymer matrix facilitates accelerated charging and discharging rates, making them particularly well-suited for high performance applications. In this study, we have synthesized single ion conducting monomer containing borate anions, which led to the weakening of the ion bond with lithium ions, resulting in an improved mobility of lithium ions. The ionic conductivity could be optimized by varying the chain length of ethylene glycol of SIPEs and the various formulation of single ion conducting monomer, oligomeric acrylate, and cross linker were prepared and the electrochemical stability and cycle performance of SIPEs will be discussed in detail.