| 摘要 |
<p>A sealed battery (800) is provided with a cathode (810), first and second anodes (820a, 820b) which are isolated by insulation (825), first and second current collectors (830a, 830b) which are separated by the insulation, and a switch (872) which may be integral or external. The cathode is coupled to a positive terminal (852) of the battery, while the first current collector is coupled to the first anode and to the negative terminal (854a). The second current collector is either coupled to the second terminal (854a) via the integral switch or to a third terminal. The cathode, first anode and first current collector provide a large cell (850a). When the large cell is exhausted, the reserve cell (850b) is readily activated by manipulating the switch. The reserve cell may be smaller than the large cell but provides enough power to properly power the equipment until the batteries can be replaced.</p> |
