Patent ID: 7470485
Filing Date: 2008-12-30
Classification: H01M,Y02E

Abstract:
1. A spacer for production of a battery pack using cylindrical batteries as unit cells, wherein the spacer is constructed in the form of a rectangular frame, the spacer is provided at opposite side surfaces (opposite faces) of the rectangular frame with a plurality of battery receiving parts having a circumferential inner surface structure that partially covers the outer surfaces of the cylindrical batteries, each battery receiving part has a horizontal through-hole, which extends between the opposite side surfaces of the frame, and a pair of battery receiving parts (a unit receiving part) formed at the opposite side surfaces of the frame is connected with another adjacent unit receiving part via structures that can be easily cut compared to the other regions, wherein the battery receiving parts are provided at upper and lower ends thereof with skirts to partially cover the end surfaces of the unit cells; the horizontal through-hole may be formed through the frame at the opposite-side middle parts of each battery receiving part such that the horizontal through-hole extends perpendicular to the longitudinal direction of the unit cells; and the connection regions of the unit receiving parts are constructed in a gate structure having small width and small thickness compared to the other regions.