Hybrid Ultracapacitor Using A 3-Dimensional Nanofilm Cathode
TP-AAB-AABC_2009_P_38
06/10/2009
- Content
- The current generation of electrochemical capacitors or “ultracapacitors” are primarily electric double layer capacitor “EDLC” devices. They utilize symmetric electrodes of activated carbon in an organic electrolyte. Recent efforts to increase ultracapacitor energy density have focused on a hybrid architecture utilizing asymmetric electrodes: one being activated carbon, the other a faradaic “battery-like” material. Such a device will provide a value proposition superior to EDLC and lithium ion batteries in terms of cost (monetary, mass or volume)/energy stored/charge cycle. To obtain optimal capacitor-like performance from the battery-like materials, Ionova has developed a novel 3-dimensional nanoscopic film (“3-D Nanofilm™”) electrode technology. While the hybrid ultracapacitor architecture in general and 3-D Nanofilm™ electrode technology in particular may be used with organic or aqueous electrolytes, this paper discusses the characteristics of a 3-D Nanofilm™ hybrid ultracapacitor in an aqueous electrolyte.
- Citation
- Seymour, F., "Hybrid Ultracapacitor Using A 3-Dimensional Nanofilm Cathode," SAE Technical Paper TP-AAB-AABC_2009_P_38, 2009, .