| 摘要 |
An apparatus and method for monitoring relative capacity and state of charge between at least two Lithium Sulfur cells (cell A and cell B) arranged in series. The apparatus comprises a timer, a voltage monitoring module configured to monitor a voltage drop across each of the Lithium Sulfur cells arranged in series based on signals received from a voltage monitoring circuit, and a cell monitoring module coupled to the timer and the voltage monitoring module. During a constant current charging cycle the cell monitoring module is configured to record a number of time stamps when the monitored voltages of the cells reaches predetermined values set to be near top of charge as the rate of change of voltage measurably increases. The cell monitoring module is also configured to determine, based on the time stamp values and predetermined voltage levels of the plurality of cells, a metric indicative of a relative capacity difference between cell A and cell B. |
