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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Composite Polymer Electrolytes Encompassing Metal Organic Frame Works: A New Strategy for All-Solid-State Lithium Batteries
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Composite Polymer Electrolytes Encompassing Metal Organic Frame Works: A New Strategy for All-Solid-State Lithium Batteries

机译：包含金属有机框架的复合聚合物电解质：全固态锂电池的新策略

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摘要

Magnesium-benzene tricarboxylate metal organic framework (Mg-BTC MOF)-incorporated composite polymer electrolytes (CPE) composed of poly(ethylene oxide) (PEO) and lithium bistrifluoromethane sulfonylimide (LiTFSl) were prepared by a simple hot-press technique. The incorporation of Mg-BTC MOF in the polymeric matrix has significantly enhanced the ionic conductivity of CPE up to two orders magnitudes even at 0 °C. It also improved the thermal stability, compatibility, and elongation-at-break of the polymeric membrane. The all-solid-state lithium polymer cell composed of Li/ CPE/LiFePO4 has delivered a stable discharge capacity of 110 mAh g~(-1) at 70 °C with a current rate of 1-C, which is higher than that of those reported earlier. The appealing properties such as high ionic conductivity, better compatibility, and stable cycling qualify this membrane as electrolyte for all-solid-state lithium batteries for elevated temperature applications.
机译：通过简单的热压技术制备了由聚（环氧乙烷）（PEO）和双三氟甲烷磺酰亚胺锂（LiTFS1）组成的并入三羧酸镁苯甲酸金属有机骨架（Mg-BTC MOF）的复合聚合物电解质（CPE）。在聚合物基质中掺入Mg-BTC MOF可以显着提高CPE的离子电导率，即使在0°C时也可以达到两个数量级。它还改善了聚合物膜的热稳定性，相容性和断裂伸长率。由Li / CPE / LiFePO4组成的全固态锂聚合物电池在70°C时的稳定放电容量为110 mAh g〜（-1），电流速率为1-C，高于那些早先报道。该膜具有吸引人的特性，例如高离子电导率，更好的相容性和稳定的循环性，使该膜成为用于高温应用的全固态锂电池的电解质。

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