Patent ID: 6451476
Filing Date: 2002-09-17
Classification: H01M,Y02E,Y02P

Abstract:
A case for a secondary battery, the case comprising:a first case body having a recess defined by side walls for receiving a secondary battery and a peripheral sealing portion extending outwardly from the side walls defining the recess, the peripheral sealing portion including a continuous first notch having, in cross-section, a curvature; and surrounding and proximate the recess; a second case body hingedly connected to one side of the first case body, including a peripheral sealing portion for sealing to the sealing portion of the first case body, and a continuous first notch having, in cross-section, a curvature, and a shape, and positioned for engaging the first notch of the first case body when the peripheral portions of the first and second case bodies are in contact with each other; and a second notch, having a curvature in cross-section, in the sealing portions of each of the first and second case bodies, spaced outwardly from the first notches in the sealing portions of the first and second case bodies, and shaped and positioned for engagement when the first notches of the first and second case bodies are engaged.