| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power supply device for extending a battery life. <P>SOLUTION: A low-temperature type electrolyte lithium battery LB which provides a good output characteristic from a relatively low temperature side is connected in parallel with a high-temperature type all solid lithium battery SB which provides a good output characteristic on a relatively high temperature side to heat the lithium battery SB by using a current flowing through the lithium battery LB. <P>COPYRIGHT: (C)2004,JPO</p> |
