Importance of PAFCs for Fuel Cell Development

First data on fuel cells based on concentrated phosphoric acid solutions date from the mid-1960s. After three decades, beginning about 1995, very few papers on phosphoric acid fuel cells have appeared in the scientific literature. Of course, many of the numerous intermediate-size and large power plants that had been built in prior years still function, but work toward their further development and improvement has practically ceased. 

The period during which these fuel cells were receiving prime interest lasted only about three decades, but they played an important role in the development of fuel cells as such. For the first time a relatively large-scale industrial production 

Kinoshita K., Electrochemical Oxygen Technology, Wiley, New York. 1992. 

Srinivasan S., Fuel Cells From Fundamentals to Applications, Springer Science + Business Media, New York, 2006. 

---