Briefly introduce the performance testing equipment and methods of lithium-ion batteries?

The performance test of lithium-ion battery is mainly to test battery capacity, efficiency, rate, high temperature performance, low temperature performance, storage performance, internal resistance, etc. The equipment used in the test is a battery performance test system. The battery performance test system is composed of hardware (battery precision test cabinet, high temperature control box, low temperature control box) and software. The battery test cabinet is mainly used to test the battery capacity, efficiency, rate, internal resistance, etc.

    When choosing a battery test system, consider the capacity range of the battery or battery pack to be tested and the required voltage range. The battery test system can be divided into micro-current range equipment and large-current range equipment according to the current range. The current range of the micro-current range equipment is several milliamperes to several amperes. For example, blue electric products have multiple ranges of test equipment such as ImA, 2mA, SmA, lOmA, lOOmA, 500mA.lOOOmA.1800mA.3000mA.5000mA; large current range The current range of the test equipment is several amperes to several hundred amperes. For example, Landian has 10A.20A.40A, 60A.100A and other specifications.

     The test methods for lithium-ion battery performance such as capacity, efficiency, high temperature performance, low temperature performance, storage performance, internal resistance, etc. are carried out according to the GB/T18287-2000 standard.