Segmental dynamics is considered as a major factor governing ionic conductivity of polymerized ionic liquids (PILs), envisioned as potential electrolytes in fuel cells and batteries. Our dielectric studies performed in $T-P$ thermodynamic space on ionene, composed of the positively charged polymer backbone and freely moving anions, indicate that other relaxation modes, completely ignored so far, can affect the charge transport in PILs as well. We found that fast mobility manifested by a secondary β process promotes segmental dynamics and thereby increases ionic conductivity making the studied material a first coupled PIL of superionic properties. The molecular mechanism underlying such a β process has been identified as Johari-Goldstein relaxation giving experimental proof that fast secondary relaxations of intermolecular origin exist also in PILs and thereby reveal a universal character.

中文翻译：

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快速二次动力学可增强聚合离子液体中的电荷传输

分段动力学被认为是控制聚合离子液体（PIL）离子电导率的主要因素，可以设想为燃料电池和电池中的潜在电解质。我们的介电研究在$Ť-P$由带正电的聚合物主链和自由移动的阴离子组成的紫罗兰上的热力学空间表明，到目前为止，其他被完全忽略的弛豫模式也可以影响PIL中的电荷传输。我们发现，由次级β过程表现出的快速迁移性促进了节段动力学，从而增加了离子电导率，从而使所研究的材料成为具有超离子特性的第一偶联PIL。这种β过程的分子机制已被鉴定为Johari-Goldstein弛豫，从而提供实验证明分子间起源的快速次级弛豫也存在于PIL中，从而显示出普遍性。