Rapid development in the area of materials for energy production has set urgent request on development of porous solid electrolytes and even porous solid electron conductive materials.
An interesting overview of sol-gel derived porous metal oxide electrodes for lithium ion batteries has recently appeared in Nanoscale, 2012,4, 2526-2542, authored by Xiong Wen (David) Lou and co-workers.
DOI:
10.1039/C2NR11966H
http://pubs.rsc.org/en/content/articlelanding/2012/nr/c2nr11966h