This Special Issue is devoted to the 56th Annual ISE Meeting which was held in Busan (Korea) from 25 to 30 September 2005. A report on the meeting, written by the local Chairman Hasuck Kim, can be found in the next pages. This issue contains a selection of 59 papers from four sub-symposia, specifically devoted to batteries, fuel cells, capacitors and nanostructured materials. The main reason for the choice of the title topics has been that this research field has particularly grown in the Asia region. The higher number of papers in the section of this issue devoted to batteries stresses the exceptional development of this area in the host country. A number of Guest Editors was charged to select titles, invite authors and process manuscript. As Co-ordinating Editor, I would like to express my deep gratitude and appreciation to the Guest Editors for their dedication and excellent job. Further, on Guest Editors’ behalf, I want to express deep appreciation to the colleagues who devoted part of their time to serve as referees of the manuscripts submitted.