| 摘要 |
A measuring method for determining the interface fuel concentration and/or the drag coefficient of a fuel cell at I1 based on measuring transient fuel crossover rate and post change current density as the current of the fuel call is abruptly changed (1) from I1 to I2 and (2) from I1 to I3 wherein I1, I2, and I3 are each of a different value. The post change current density is (a) the current density at I2 after the I1 to I2 transition or (2) the current density at I3 after the I1 to I3 transition. Where the fuel cell is a direct methanol fuel cell (DMFC), the interface fuel concentration is the interface methanol and the drag coefficient is the methanol drag coefficient. |
