Methods for judging the performance of lithium-ion battery testing equipment

Lithium-ion battery manufacturers teach you how to judge the performance of lithium-ion battery test equipment. Lithium-ion battery testing equipment plays a crucial role in manufacturing lithium battery cells and battery packs with high consistency and excellent performance. Through the constant monitoring and traceability of the test equipment, you can understand the dynamics of the production line at any time, and you can quickly find out the cause of the problematic product, thereby improving processing efficiency, improving product yield, and improving product overall performance.



Lithium-ion battery manufacturers teach you how to judge the performance of lithium-ion battery test equipment



Lithium-ion battery is a product that requires high quality and high safety. Consumers often don't know the performance of the battery when using it. As a result, the efficiency of the battery during use is often not up to the ideal goal, and sometimes even blind use can cause battery explosions. If this happens, life safety will also be damaged, so understanding the performance of the battery is also crucial.



Lithium-ion battery testing equipment is very important. The lithium-ion battery processing process is made in multiple processes and days. From iron-lithium or ternary cathode materials, graphite anode materials to finished batteries, it usually takes about 20 to 45 days. The performance can only be understood after the finished product is tested, so testing equipment must be used. In terms of processing, Dacheng's sophisticated lithium battery test equipment is a good choice.



Ways to test the quality of lithium-ion battery equipment



1. The fastest inspection method is to detect the internal resistance and maximum discharge current. Good quality lithium-ion battery equipment has very small internal resistance and large maximum discharge current. Use a multimeter with a 20A range and directly short the two electrodes of a lithium-ion battery. The current should generally be about 10A, or even higher, and it can be maintained for a period of time. A relatively stable battery is a good battery.



2. Look at the appearance; the fullness of the appearance, such as the general lithium-ion battery equipment of about 2000mAh, is relatively large. The workmanship is more delicate or the packaging is more plump.



3. Look at the hardness; you can gently pinch the middle part of the lithium-ion battery device with your hands or moderately pinch the middle part of the lithium-ion battery device. The hardness is moderate, and there is no soft squeezing feeling, which proves that the lithium battery is a relatively high-quality battery.



4. Look at the weight; remove the outer packaging and feel whether the weight of the battery is relatively heavy, if it is heavy, it is a high-quality battery.



5. During the live working process of the lithium-ion battery equipment, continue to discharge for about 10 minutes if the battery poles are not hot, it proves that the battery protection board system is perfect. Generally, the quality of lithium-ion battery equipment with high-quality protection board is better than that of ordinary lithium-ion battery equipment. it is good.



Equipment and methods for performance detection of lithium-ion batteries



Lithium-ion battery performance detection mainly includes power supply, internal resistance, capacity, internal teeth, self-discharge rate, cycle life, sealing performance, safety performance, storage performance, appearance, etc., as well as overcharge, overdischarge, solderability, resistance Corrosion, etc.



When choosing a battery detection system, consider the capacity range of the battery or battery pack to be tested and the required voltage range. The battery detection system can be divided into micro-current range equipment and large-current range equipment according to the current range.



(1) The current range of the micro current range detection device is several milliamperes to several amperes, such as ImA, 2mA, SmA, 10mA, 100mA, 500mA, 1000mA, 1800mA, 3000mA, 5000mA and other multiple range detection devices;



(2) The current range of large current range detection equipment is several amperes to several hundred amperes, such as 10A, 20A, 40A, 60A, 100A and other specifications of detection equipment.



Compared with other rechargeable batteries, lithium-ion batteries have the advantages of high energy density, high voltage, long life, no memory effect, etc. In the future, with the further improvement of lithium-ion battery processing technology and battery performance, lithium-ion batteries will occupy energy storage batteries , Power lithium batteries, and other mainstream markets; there are many known foreign manufacturers of lithium-ion battery performance detection systems, and the detection equipment of lithium-ion battery performance among domestic representative manufacturers is widely acclaimed, and it is far ahead in the battery detection industry.