SBIR Phase I: Novel Composite PEMs for High-Performance Redox Flow Batteries

这个小型企业创新研究第一阶段项目旨在开发一种无机增强质子交换膜，用于钒氧化还原液流电池（rfb）。新型质子交换膜降低了钒的渗透性，提高了稳定性和耐用性，这是rfb经济高效运行的必要条件。所开发的复合膜在RFB电解质中具有较高的化学稳定性、较高的质子导电性、低的钒离子渗透性，同时具有较高的尺寸稳定性、机械强度和耐久性。本项目将通过详细表征建立新型复合膜的组成-加工-性能关系。并对该膜的性能进行了评价。将确定和解决与膜生产规模扩大有关的问题。如果成功，该项目的更广泛/商业影响将推动固定式电能存储的RFB技术的发展。能量和电力之间的解耦特性，以及rfb可能具有的极大容量，使它们非常适合用于大型电力存储和高输出应用，例如输电网操作，以帮助平均生产高度可变的发电源，如风能或太阳能。rfb的快速响应时间也使它们非常适合不间断电源（UPS）类型的应用。

This Small Business Innovation Research Phase I project aims to develop an inorganic-reinforced proton exchange membranes for application in vanadium redox flow batteries (RFBs). New proton exchange membranes with reduced vanadium permeability as well as enhanced stability and durability are needed for cost-effective operation of RFBs. The composite membrane to be developed will have high chemical stability in RFB electrolytes, high proton conductivity, and low permeability of vanadium ions, along with high dimensional stability, high mechanical strength, and high durability. The project will establish composition-processing-property relations of the novel composite membrane through detailed characterization. The performance of the membrane for vanadium RFBs will also be evaluated. Issues related to scale up of the membrane production will be identified and addressed. The broader/commercial impact of this project, if successful, will advance the development of RFB technology for stationary electrical energy storage. The feature of decoupling between the energy and power, and the extremely large capacities possible from RFBs make them well suited to use in large power storage and high output applications such as for transmission grid operations, in helping to average out the production of highly variable generation sources such as wind or solar power. RFBs'rapid response times also make them well suited to uninterrupted power supply (UPS) type applications.