High Ion Conducting Poly(ethylene oxide)-based Nanohybrid Polymer Electrolytes via Vinyl Mesoporous Silica Nanoparticles
발표자
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초록
내용
For the development of lithium metal batteries, it is necessary to enhance mechanical properties because polymer electrolytes with high mechanical properties can prevent lithium dendrite growth at the interface between an electrolyte and an electrode. The addition of inorganic fillers, such as mesoporous silica nanoparticles (MSNs), is one of the strategies that enhance mechanical properties. However, MSNs are easily aggregated in the organic precursor state, so a large amount of MSN cannot be added into a polymer matrix. Here, we prepare the functionalized MSNs whose surface substitutes a hydroxyl group with a vinyl group using the post-grafting technique. Then, we not only systematically investigate the effect of VMSN content on electrical and mechanical properties of IL/VMSN/PEO-based GPEs, but also thoroughly study the GPE rheological properties in terms of the MSN type (i.e, MSN versus VMSN).