Journal
PURE AND APPLIED CHEMISTRY
Volume 92, Issue 7, Pages 1147-1157Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/pac-2019-1208
Keywords
fuel cells; hybrid membranes; ion exchange membranes; ion conductivity; lithium-ion batteries; membrane synthesis; Mendeleev-21; selectivity
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Funding
- Russian Science Foundation [17-79-30054]
- IGIC RAS state assignment
- Russian Science Foundation [17-79-30054] Funding Source: Russian Science Foundation
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Ion exchange membranes are widely used in chemical power sources, including fuel cells, redox batteries, reverse electrodialysis devices and lithium-ion batteries. The general requirements for them are high ionic conductivity and selectivity of transport processes. Heterogeneous membranes are much cheaper but less selective due to the secondary porosity with large pore size. The composition of grafted membranes is almost identical to heterogeneous ones. But they are more selective due to the lack of secondary porosity. The conductivity of ion exchange membranes can be improved by their modification via nanoparticle-incorporation. Hybrid membranes exhibit suppressed transport of co-ions and fuel gases. Highly selective composite membranes can be synthesized by incorporating nanoparticles with modified surface. Furthermore, the increase in the conductivity of hybrid membranes at low humidity is a significant advantage for fuel cell application. Proton-conducting membranes in the lithium form intercalated with aprotic solvents can be used in lithium-ion batteries and make them more safe. In this review, we summarize recent progress in the synthesis, and modification and transport properties of ion exchange membranes, their transport properties, methods of preparation and modification. Their application in fuel cells, reverse electrodialysis devices and lithium-ion batteries is also reviewed.
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