| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a secondary battery that realizes high energy density, and has superior reliability when the battery temperature is increased. <P>SOLUTION: In the secondary battery 10 a power generating element 108 is hermetically housed in exterior members 106 and 107, electrode plates 101 and 103 having an electrode active material layer formed on each of the main surfaces thereof, and a separator 102 interposed in between the electrode plate 101 and 103. Electrode terminals 104 and 105 connected to the electrode plates 101 and 103 are lead out from the exterior members 106 and 107. The secondary battery has a first positive pole active material layer 101b, consisting essentially of lithium nickel complex oxide, a second positive pole material layer 101c, consisting essentially of lithium manganese complex oxide, a first negative pole active material layer 103b consisting essentially of graphite, and a second negative pole active material layer 103c consisting essentially of a graphitization difficult carbon material. The first positive pole active material layer 101b and the first negative pole active material layer 103b face each other via a separator 102, and the second positive pole active material layer 101c and the second negative pole active material layer 103c face each other via the separator 102. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
