| 摘要 |
An electrode structure 30 for use in a battery or super-conductor comprises a conductive substrate or current collector 34 and a first layer 38 comprising a first electrochemically active material. A second layer 40 comprises a second electrochemically active material. The first and second electrochemically active materials layers exhibit at least one different electrochemical property to each other. The first 38 and second 40 layers may comprise composite materials of different densities and porosities. The layers may comprise titanium dioxide or carbon nano-tubes. The electrode structure 30 may include a proton conducting membrane or separator 42, and a third layer 44 comprising graphene, and is approximately 200nm thick. Preferably the electrode structure 30 comprises one or more additional layers each showing different electrochemical properties to the first two layers. Preferably the thickness of the first layer 38 is approximately 32 micrometres, and the thickness of the second layer 40 is approximately 650 nanometres. A method of fabricating such an electrode structure 30 is also provided. |
