| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery power supply system which, in a simple configuration though, can avoid overcharging during a charge. <P>SOLUTION: The cathodes of each cell 12 consisting of a nonaqueous secondary battery are made from a lithium transition metal composite oxide of olivine structure, and the anodes are made from a graphite containing material. A charge/discharge device 21 charges a battery pack 13 composed of cells 12 with a constant current. A charge/discharge control device 31 monitors the voltages of each cell 12 during constant current charge with a voltmeter 33, so that when the voltage of any one of the cells 1 reaches a prescribed voltage value, a relay switch 34 has its contacts opened by a charge/discharge stop circuit 35 to stop the charging. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
