November 2013’s issue of Electronic Products features an article on the cover titled “Introduction to Polymer Capacitors.” The author is, well, me. This article explains the differences between traditional MnO2-Tantalum and Polymer-Tantalum capacitors. Previously I explained these differences in the post on the fire hazard the Arduino GSM shield poses (due to improper derating).
You can find the Electronic Products article wherever magazines are sold or here: Introduction to Polymer Capacitors. Check below for links to high-resolution pictures.