| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of exhibiting a stable battery performance over a long term, and to provide a manufacturing method thereof. SOLUTION: As for the battery pack 10, a plurality of single cells 12 in which an electrode body having a form that sheet-shaped electrodes are overlapped over each other is housed into a container together with an electrolytic solution are arranged in a plurality of numbers in a prescribed direction and restricted in a state applied with a load in the arranging direction. At the lower side in the vertical direction of the plurality of the single cells 12, a position restricted by the load larger than that of the upper side in the vertical direction of the single cells 12 is installed. Such a constitution is achieved, for example, by means that upper part restriction bands 211, 212 and lower part restriction bands 213, 214 bridged over in the arranging direction of the single cells 12 are arranged by making a position different in the vertical direction and that the restriction load of the lower part restriction band arranged more downward is made larger than that of the upper part restriction bands 211, 212. COPYRIGHT: (C)2009,JPO&INPIT |
