Abstract:

The diaphragm material in the electrochemical reactor is a special material that separates the positive electrode and the negative electrode on the electronic path but keeps the ion transport path open. As one of the three critical materials in the electrochemical reactor, the separating diaphragm must be stable in the crucial acidic/basic, strong electric field strength, and other complex micro-environments. In this review, we focus on the molecular design of the separating diaphragm inside the electrochemical reactors. The mesoscopic strategies to regulate electrochemical properties and chemical stabilities of the separating diaphragm were discussed. The purpose of this review is to set up a link between the molecular structure of the separating diaphragm and the performances of the electrochemical reactors in terms of mesoscopic strategies.

Key words: molecular design, chemical composition, energy conversion, lithium sulfur battery, fuel cell

摘要：

电化学反应器中隔膜材料是将正极和负极在电子通路上隔开但在离子传输通路上保持畅通的特殊材料。作为电化学反应器三个关键材料之一，隔膜材料还需耐强酸/强碱和高电压等环境。围绕电化学反应器中隔膜材料，从分子设计的角度针对材料电化学性能与化学稳定性的调控、电化学装置的介观传质性能的促进和改善等研究思路与进展进行了综述，为相关研究提供性能导向的分子设计参考。

关键词: 分子设计, 化学组成, 能量转换, 锂硫电池, 燃料电池