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- W73080017 abstract "Publisher Summary The concept of electrochemical reactions that occur in the fuel cell catalyst layers needs to be understood when trying to model a fuel cell. In addition to the activation losses, there are also losses during the transport of charge through the fuel cell. This chapter gives an account of fuel cell electronic and ionic charge transport and voltage losses due to transport resistance. Electronic charge transport describes the movement of charges from the electrode where they are produced, to the load where they are consumed. Charge transport resistance results in a voltage loss for fuel cells called ohmic loss. Common methods of reducing ohmic losses include making electrolytes as thin as possible and employing high conductivity materials that are well connected to each other. The two major types of charged particles are electrons and ions, and both electronic and ionic losses occur in the fuel cell. The electronic loss among the bipolar, cooling, and contact plates is due to the degree of contact that the plates make with each other due to the compression of the fuel cell stack. Ionic transport is far more difficult to predict and model than fuel cell electron transport. The ionic charge losses occur in the fuel cell membrane when H+ ions travel through the electrolyte. Voltage loss due to charge transport, electron conductivity of metals, and ionic conductivity of polymer electrolytes are discussed." @default.
- W73080017 created "2016-06-24" @default.
- W73080017 creator A5065444331 @default.
- W73080017 date "2008-01-01" @default.
- W73080017 modified "2023-09-25" @default.
- W73080017 title "Fuel Cell Charge Transport" @default.
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- W73080017 doi "https://doi.org/10.1016/b978-012374259-9.50005-7" @default.
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