Polymer composite materials have particular properties that meet special requirements. A conductive polymer composite is positioned to play a progressively significant role in industry and academia, specifically in the area of electrical conductivity. Even general information about electrically conductive composites has become available for many years, less attention has become given in the literature to using conductive composites for renewable power production.
The reason why using composite materials for energy production interesting? By using a continued rise in the worldwide requirement for energy, there is certainly increasing curiosity about alternative technologies of energy generation such as fuel cells, for a variety of stationary and mobile apps. In this chapter, the authors are mostly considering a fuel cell as an energy generator, since a fuel cell is anticipated to play a serious role in the economy of the century but for the foreseeable future. Numerous factors provide you with the incentive for fuel cells to be a factor in the future energy supplies as well as for transportations, including global warming, oil dependency as well as security, urban air quality, and development in distributed power generation.
A polymer electrolyte membrane fuel cell (PEMFC) is an excellent contender for portable and automotive propulsion applications mainly because it provides high power density, solid state construction, high chemical-to-electrical power 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 identified the polymer electrolyte membrane fuel cells as 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 main factors limiting fuel cell commercialization is the creation of bipolar plate, which are one among PEMFC’s key components.
Bipolar plate characteristic requirements 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 an important issue for scientists and engineers wanting to achieve the appropriate PEMFC dexqpky60 global commercialization. Various kinds materials are employed in bipolar plates, including non-porous graphite plates, metallic plates without or with coating and several composite plates. Thermoplastic composite bipolar plates are an appealing choice for PEMFC use.
They are doing not only offer advantages of affordable, lower weight and greater easy manufacturing than traditional graphite, however properties can also be tailored through changes of reinforcements and also the resin systems. The weakest reason for thermoplastic composite bipolar plates could be the low electrical conductivity in comparison to 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.