Button-type secondary battery

• Main Authors: AWAKURA YASUTAKA, TORISU TSUYOSHI, KITAMURA KAZUMASA
• Format: Patent
• Language: Chinese; English
• Published: 30.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A button-type secondary battery (1) is provided with a positive electrode (2), a negative electrode (3), an electrolyte layer (4), an exterior body (5), and a conductive elastic member (7). The positive electrode (2) and the negative electrode (3) are arranged in the vertical direction. The electrolyte layer (4) is provided between the positive electrode (2) and the negative electrode (3). The exterior body (5) has a sealed space in which the positive electrode (2), the negative electrode (3), and the electrolyte layer (4) are housed. The elastic member (7) is disposed between one of the positive electrode (2) and the negative electrode (3) and the flat plate portion of the exterior body (5) in a vertically compressed state. An elastic member (7) electrically connects the one electrode and the flat plate portion indirectly or directly. The elastic member (7) has a plurality of protrusions protruding in the vertical direction. The plurality of convex portions includes a first convex portion and a second convex