| 摘要 |
A battery module (1, 10) is produced by coating selected sides of a battery cell (2, 11) having a rectangular shape with a prescribed resin material, which is selected from among polyamide resin, polyurethane resin, and polyolefin resin, so that module side surfaces (1a, 1b; 10a, 10b) provide slopes both having the same slope angle of 5{ or more in the thickness direction. A positioning structure is provided for establishing the prescribed positioning between the battery module and its counterpart unit such as a cellular phone having a hollow space (6, 17). Herein, slopes (6a, 6b; 18a, 18b) are formed along side walls of the hollow space to provide complementary shapes of the module side surfaces. Thus, when the battery module is installed in the hollow space, the module side surfaces slide along and come in close contact with the slopes of the side walls of the hollow space. The side wall slopes may be provided by means of projecting pins (18). |
