Lithium ion battery top cover

• Main Authors: HU YANLAN, WANG JUN, ZHONG YUHAO, HUANG XIAOWEI, HU QING, GE ZHIMIN, NI DAWEI, HE QINGQING, TANG XIAOWEI
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The utility model provides a lithium ion battery top cover which comprises a top cover piece, two ends of the top cover piece are respectively provided with a convex block, the convex blocks are in an upward convex shape, two sides of the top cover piece are respectively provided with a negative pole post and a positive pole post, the negative pole post and the positive pole post are positioned on the inner sides of the convex blocks, and the convex blocks are arranged on the top cover piece. Grooves are formed in the negative pole and the positive pole; through the arrangement of the bumps, the positive pole and the negative pole can be processed into shapes fitting the bumps, so that the volumes of the positive pole and the negative pole are compressed and reduced, the manufacturing cost of the poles can be effectively saved on the premise of not influencing the use performance of the poles, and the manufacturing cost of the whole top cover is reduced; according to the utility model, the contact surface bet