@inbook{30573, author = {Adam Z Weber}, editor = {Gerhard Kreysa and Ken-ichiro Ota and Robert F Savinell}, title = {Macroscopic Modeling of Porous Electrodes}, abstract = {

It is well known that for optimal performance of electrochemical energy storage and conversion devices, it is necessary to have a nonplanar electrode to increase reaction area. One requires a porous electrode with multiple phases that can transport the reactant and products in the electrode while also undergoing reaction; an analogy in heterogeneous catalysis is reaction through a catalyst particle. For traditional devices, porous electrodes are often comprised of an electrolyte (which can be solid or liquid) that carries the ions or ionic current and a solid phase that carries the electrons or electronic current. In addition, there may be other phases such as a gas phase (e.g., fuel cells). Schematically one can consider the porous electrode as a transmission-line model as shown in Fig. 1.

}, year = {2014}, journal = {Encyclopedia of Applied Electrochemistry}, pages = {1203-1210}, month = {09/2014}, publisher = {Springer New York}, address = {New York, NY}, isbn = {978-1-4419-6995-8}, doi = {10.1007/978-1-4419-6996-5_332}, language = {eng}, }