Polymer composite materials have particular properties that meet special requirements. A conductive polymer composite is positioned to perform an extremely significant role in industry and academia, specifically in the community of electrical conductivity. Even general knowledge about electrically conductive composites has been available for many years, less attention has been given within the literature to using conductive composites for renewable power production.
The reason why the application of composite materials for energy production interesting? Having a continued development in the worldwide demand for energy, there is increasing curiosity about alternative technologies of energy generation for example fuel cells, for various stationary and mobile applications. In this particular chapter, the authors are mostly interested in a fuel cell as an energy generator, since a fuel cell is predicted to try out a major role inside the economy of the century and for the near future. A number of factors give you the incentive for fuel cells to be a factor in the future energy supplies and then for transportations, including global warming, oil dependency and energy security, urban air quality, and development in distributed power generation.
A polymer electrolyte membrane fuel cell (PEMFC) is a superb contender for portable and automotive propulsion applications as it provides high power density, solid state construction, high chemical-to-electrical energy conversion efficiency, near zero environmental emissions, low temperature operation (60 – 120 oC), and quick and simple start-up [2,3, and 4]. The Usa Department of Energy (DOE) has additionally identified the polymer electrolyte membrane fuel cells because the main candidate to exchange the internal combustion engine in transportation applications; however, barriers to commercialization remain. Fundamental technical challenges facing the commercialization of PEM fuel cells are manufacturing and material costs; material durability and reliability; and hydrogen storage and distribution issues. One of the leading factors limiting fuel cell commercialization is the development of bipolar graphite plate, that happen to be among PEMFC’s key components.
Bipolar plate characteristic requirements really are a challenge for any class of materials, and none fits the profile characteristics exactly. Therefore, research on materials, designs and fabrications of bipolar plates for PEMFC applications is the central problem for scientists and engineers wanting to achieve the appropriate PEMFC dexqpky60 global commercialization. Various kinds materials are presently utilized in bipolar plates, including non-porous graphite plates, metallic plates with or without coating and numerous composite plates. Thermoplastic composite bipolar plates are an appealing option for PEMFC use.
They generally do not merely offer features of low cost, lower weight and greater comfort of manufacturing than traditional graphite, but their properties can also be tailored through changes of reinforcements as well as the resin systems. The weakest point of thermoplastic composite bipolar plates is the low electrical conductivity when compared with conventional graphite or metallic bipolar plates. To boost the electrical conductivity of your plates, electrically conductive polymers or fillers have already been used as bipolar plate materials.