Power battery

• Main Authors: LI CUNMEI, WANG PENG, CAI RULAI, DENG PINGHUA, CHEN SHENGWANG, ZHONG KAIFU
• Format: Patent
• Language: Chinese; English
• Published: 20.01.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The utility model relates to an energy storage device field especially relates to a power battery, includes to annotate liquid hole, top cap, utmost point post, naked electric core and casing, be provided with utmost point post on the top cap, the top cap with airtight cavity is constituteed jointly to the casing, naked electric core is arranged in in the airtight cavity, it sets up to annotate the liquid hole on the utmost point post, and follow the thickness direction of top cap runs through utmost point post, annotate the liquid hole with airtight cavity is linked together, follows annotate the axial in liquid hole, it all is greater than middle radial dimension to annotate the top in liquid hole and the radial dimension of bottom. The power battery that this application provided sets up on utmost point post through annotating the liquid hole, can utilize utmost point post intensity characteristics good, that the resistance to pressure is strong to prevent to annotate liquid hole and top cap deformation, h