Disclosed is an isolation resistance measuring apparatus having a fault self-diagnosing function. The isolation resistance measuring apparatus having a fault self-diagnosing function forms a diagnosis circuit by means of a first isolation resistance measur...

A fuel cell system has a fuel cell that includes at least one cell with an electrolyte membrane, an index value acquirer and a controller. The index value acquirer obtains a temperature index value correlated to temperature of a short circuit area in each ...

The individual cells are formed such that each cell has lithium intercalating electrodes (2) with polymer matrix in which electrochemically active materials which are insoluble in polymer are finely dispersed. The function of the cells are verified by meas...