A jig for testing the electrical properties of pouch batteries

Abstract

The invention discloses a fixture used for testing soft roll battery electrical performance. The fixture used for testing soft roll battery electrical performance comprises an insulating main board, a positive electrode connecting device and a negative electrode connecting device which are arranged on the insulating main board, the positive electrode connecting device is corresponding to a positive electrode ear of the soft roll battery, and the negative electrode connecting device is corresponding to a negative electrode ear of the soft roll battery. The positive electrode connecting device and the negative electrode connecting device both comprises a gasket connected with the insulating main board and an electric conduction tabletting arranged on the upper layer of the gasket in a folding mode. The electric conduction tabletting and the gasket are connected through two bolts arranged on a position closes to two ends of the electric conduction tabletting and the gasket, and at least two electrode pillars are arranged on the upper surface of the electric conduction tabletting, and at least one electrode pillar is provided with an external threads, and nuts matched with the external thread can tightly compress a current test terminal of the testing device between the nuts and the electric conduction tabletting. With adoption of the arrangement, the fixture used for testing soft roll battery electrical performance can effectively simplify test process of the soft roll battery and provide stable test data.

Description

technical field [0001] The invention relates to the technical field of battery performance testing, in particular to a fixture for testing the electrical performance of a pouch battery. Background technique [0002] In recent years, with the rapid development of economic construction, the world's oil reserves have declined rapidly. In order to alleviate the energy crisis, electric vehicles have become one of the most ideal means of transportation for people. [0003] Soft-pack batteries are the core components of electric vehicles, and the performance of soft-pack batteries directly affects the battery life of electric vehicles. Electrical performance testing is an important item to test the performance of pouch batteries. The following content will introduce the electrical performance testing methods of pouch batteries in the prior art in detail. [0004] Please refer to figure 1 , figure 1 It is a schematic diagram of the connection structure between the test equipment ...

AI Technical Summary

Problems solved by technology

[0007] However, in the prior art, the positive tab 01 and the negative tab 02 of the pouch battery need to be punched separately for current testing, and the testing process is complicated

In addition, the current test terminals are respectively connected to the above two tabs by means of bolts and nuts. The contact area between the current test terminals and the tabs is small, which leads to unstable test data when performing high-current tests.

[0008] Therefore, how to solve the problems of complex test process and unstable test data of pouch battery in the prior art has become an important technical problem to be solved by those skilled in the art

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