Coin type secondary battery

• Main Authors: KITAMURA, KAZUMASA, AWAKURA, YASUTAKA, TORISU, TSUYOSHI
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A coin type secondary battery 1 includes a positive electrode 2, a negative electrode 3, an electrolyte layer 4, an outer case 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 case 5 has a closed space for accommodating the positive electrode 2, the negative electrode 3, and the electrolyte layer 4. The elastic member 7 is arranged in a state of being compressed in the vertical direction between one of the electrodes of the positive electrode 2 and the negative electrode 3 and the flat plate portion of the exterior case 5. The elastic member 7 electrically connects the one electrode and the flat plate portion indirectly or directly. The elastic member 7 includes a plurality of convex portions that are convex in the vertical direction. The plurality of convex portions include a first convex portion and a second convex