| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery and a battery pack capable of regulating a position of the thickness direction of an electrode terminal with high precision without causing a large increase of heat capacity, weight, and cost. SOLUTION: In a thin type battery 10, a positive electrode terminal 210 and a negative electrode terminal 220 have step-shaped convex parts 212, 213 respectively formed in the vertical direction of the thickness direction of the thin type battery 10 in the inner space 111. The thickness formed by these upper side step part 212 and the lower side step part 213 is formed nearly equal to the thickness of a power generating element 108, and by this, the upper side step part 212 is formed in a state of being in contact with the inner wall of the upper sheath member 106 and the lower side step part 213 is formed in a state of being in contact with the inner wall of the lower sheath member 107 respectively. By this, in the positive electrode terminal 210 and the negative terminal 220, those position and posture are retained by the upper sheath member 106 and the lower sheath member 107, and the position of the external lead part 215 in the thickness direction of the thin type battery 10 can be maintained with high precision. COPYRIGHT: (C)2007,JPO&INPIT |
