Top cover structure of secondary battery

• Main Authors: ZOU WEIWEI, WANG JUN, ZHANG LIHUA, HU QING, GE ZHIMIN, NI DAWEI, SUN WEN, YANG XIAOHONG, HE QINGQING, YU WENQIANG, TANG XIAOWEI
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The utility model provides a top cover structure of a secondary battery, which is characterized in that a positive pole and a negative pole are respectively arranged on two sides of a top cover, positive pole upper plastic cement and negative pole upper plastic cement are respectively arranged outside the positive pole and the negative pole in a surrounding manner, and sealing rings are respectively arranged on the positive pole and the negative pole. The lower ends of the positive pole and the negative pole are fixed on the top cover through riveting flanges after being sleeved with insulating spacers, and a circulating groove is formed in the end surface of one side, opposite to the top cover, of each insulating spacer; the riveting process is adopted, and compared with a traditional injection molding top cover, the injection molding cost is reduced; compared with a welding top cover, the welding process is reduced, a welding ring is omitted, the BOM cost is reduced, assembling is conducted through a flangi