摘要 |
An energy storage device (1) includes a cylindrical shrink wrap housing (2) having two opposed metal terminals (3, 4). An electrochemical device in the form of a dry cell alkaline battery (5) is disposed within housing (2) for providing an electrical potential between the terminals. An electric double layer supercapacitor (6) is wrapped around and mounted to housing (2) and connected to terminals (3, 4) in parallel with battery (5). |