Design and Synthesis of New Polymeric Ionic Conduction Materials

该项目涉及被称为聚磷腈的先进材料及其设计和合成。这些导电聚合物可用于储能设备和轻型充电电池。将评估材料特性(玻璃化转变温度、对金属的附着力和尺寸稳定性)以及离子导电性。此外，还将进行分子表征，包括凝胶渗透色谱和傅立叶变换红外光谱，以分别确定分子量、分布和侧基。为了研究聚合物电解液与电极金属的相互作用，以及电解液中微量水与电极之间的相互作用，将使用电子显微镜技术进行初步实验。这些相互作用是限制电池在多次充放电循环中使用寿命的决定性因素。

This project addresses advanced materials known as polyphosphazenes, and their design and synthesis. These electrically conductive polymers could be used in energy storage devices and lightweight rechargeable batteries. Material characterization (glass transition temperature, adhesion to metals and dimensional stability) as well as ionic conductivities will be evaluated. In addition, molecular characterization, including gel permation chromotography, and Fourier Transform infrared spectroscopy will be conducted to identify molecular weights and distributions and side groups respectively. To examine the interaction of a polymeric electrolyte and an electrode metal, and between the traces of water in electrolyte and the electrode, preliminary experiments will be conducted using electron microscopy techniques. These interactions are a deciding factor in limiting the lifetimes of batteries over many cycles of charge and discharge.