LAYER-BUILT SECONDARY BATTERY

摘要

PURPOSE:To realize a good charge-and-discharge characteristic by fixing conductive sheets located at the ends of a stacked body to an exterior metallic sheets by means of a conductive adhesive. CONSTITUTION:A conductive sheet 11 and an exterior metallic sheet 8 are fixed together by interposing a conductive adhesive between them. For example, in a battery constituted by stacking A, B, C and D cells, conductive sheets (A-1 and D-2) located at both ends are fixed to the inner surface of an exterior aluminum foil 18 by thinly applying a conductive adhesive to the conductive sheets. As a result, battery resistance decreases and coulomb efficiency increases. Moreover it is possible to make the battery thin.