The Aspects of Lithium Coin Battery Safety Testing Lithium button battery is a battery with unique shape and size. The whole shape is like a small button. However, no matter what type of battery, it needs to be tested for safety. The button battery has no exception. Here let’s introduce the general aspects of the button battery safety tests. The test content includes: vibration, squeeze, acupuncture, overcharge, short circuit, drop, heating, heavy object impact, etc., then connect. In the following, will briefly talk about the specific test content of overcharge test, short circuit test, needle test, squeeze test, and heavy object impact test. Button battery overcharge test: First, fully charge the button battery, and then overcharge according to 3c to conduct an overcharge test. If the voltage of the battery rises to a certain voltage when the battery is overcharged, we will stabilize for a period of time, and then increase the voltage of the battery rapidly when the time comes. At this time, the voltage of the battery has risen to a certain limit. The top hat of the battery is broken and the voltage drops to 0V. The battery can pass the test without fire or explosion. A coin cell tester is necessary for this process. Button battery short-circuit test: After the button battery is fully charged, the positive and negative electrodes of the battery are short-circuited with resistance wires. ACEY battery short circuit test chamber can finish this test. Acupuncture test of button battery: Place a fully charged battery on a flat surface and pierce the battery with a steel needle with a diameter of 3mm in the radial direction. The test battery can pass the test without fire or explosion. Squeeze test of button battery: Place the fully charged battery on a flat surface, apply a certain squeezing force by the hydraulic cylinder, and then squeeze the battery by the plane of the steel rod. Once squeezed, the pressure reaches the maximum value. Stop squeezing, if the battery does not catch fire, just don't explode. Button battery heavy object impact test: After the battery is fully charged, place it on a flat surface and use a steel column to vertically place the center of the battery. If a certain weight of weight falls freely on the steel column above the battery, if the battery is still It can pass the test if it catches fire or does not explode. Overcharge test, short circuit test, acupuncture test, squeeze test, and heavy object impact test are all test contents of button battery safety test. If these test items can be carried out meticulously, the quality of button battery will be greatly improved. This also guarantees the normal use of button batteries Acey new energy can provide professional battery environment testing equipments. Welcome to contact us for more products.

What Is the Function of Battery Comprehensive Tester Lithium battery comprehensive tester is a new high-tech intelligent product specially designed for the maintenance of lithium batteries in communication and power systems. It provides users with a safe, reliable, fast and convenient battery testing equipment. 1. Online test function: Monitor the battery pack and single battery in real time when the battery pack is in the state of online discharge, uniform charge, floating charge, etc; Including the voltage of the whole group, the voltage of a single battery, the charging and discharging current of the whole group, the charging capacity of the whole group, the discharging capacity of the whole group, etc; 2. Discharge test function: After the battery pack is separated from the system, the intelligent dummy load is used for constant current discharge, or the intelligent dummy load is connected with the user equipment in parallel for constant current discharge. After setting the discharge parameters, the tester will automatically perform the discharge function, and display the discharge current, discharged capacity of the battery, whole group voltage, single battery voltage, discharge time and other data in real time; The discharge test can be stopped when the battery pack reaches the termination discharge condition or it is considered to be terminated. 3. Capacity quick test function: After the battery pack is discharged from the system, it only takes 5 ~ 20 minutes to measure the actual capacity, internal resistance test, performance status (normal, backward, degraded) of each battery in the battery pack. And put forward maintenance suggestions. Acey new energy can provide professional battery integrated testing machine. Welcome to contact us for more products.

How to Test Lithium Battery’s Capacity Capacity is the core parameter of lithium battery. Lithium battery manufacturers generally have battery cell capacity testing equipment for battery testing to ensure the quality of shipped products. Here take 1000mah lithium battery as an example. First of all, we should understand several voltage values of lithium battery theoretically: 1. Charging termination voltage: it is also the no-load voltage, that is, the highest voltage when it is not working, which is generally 4.2V. 2. Working / nominal voltage: it is also the load voltage, and the voltage during normal operation is generally 3.7V. 3. Discharge termination voltage: that is, the voltage at which the battery cannot work. There are different designs of 3V and 2.75V. Start the test, first charging the battery with a battery cell grading machine, and the full charged voltage is 4.2V, and then use the multimeter as the constant current load, with 0.2C (i.e. 1000 × 0.2=200ma) discharge, set the discharge voltage of the multimeter to 3V. If the discharge time reaches 5 hours, it means that the battery is qualified. The current lithium battery can generally be discharged to 2.75V, and the discharge depth is 80% as before, when 3V is the termination voltage, but it can be put into 8 hours, indicating that the power of lithium battery has been improved. The above so-called qualified and unqualified are relative to the nominal capacity. And nominal capacity = discharge current × discharge time. If the above discharge time is not enough, it means that the capacity marked on the lithium battery is not enough 1000mah. Acey new energy specialized in different kinds of lithium battery testers like 512 channels battery tester for cell grading. Welcome to contact us for more products.

Structure and Functions of Glove Box Glove box is a laboratory equipment that fills the tank with high-purity inert gas and circularly filters out the active substances in it. It is also called true empty hand box, inert gas protection box, etc. 1. Structure of the glove box It is mainly composed of main box and transition chamber. If the user has other special requirements, it can also be designed and manufactured as required. There are two (or more) glove operation interfaces on the main box, which are distributed in the front (or front and rear) of the box, so that the operation box can be operated by one (or several) people at the same time, which improves the service efficiency of the box. In addition, there are observation windows in the front (or front and rear) of the glove box, so that the operator can clearly observe the operation process in the box, so that the operation process can be visually displayed in front of the operator. The valve of the transition chamber is provided with an air extraction and inflation nozzle, which can be accessed when air extraction or inflation is required. The main box body is also equipped with valves and nozzles, which can be used by users when they need to maintain air pressure balance and deflate or inflate the main box body (the three-way valve between the glove ports can also be used for deflation if necessary). A lighting fluorescent lamp is installed above the front observation window of the main box. The transition chamber is the transition space between the main box and the outside of the box. It is composed of two sealed doors, two valves and a chamber. The inner and outer doors can effectively isolate the connection between the main box and the outside world, so that things inside and outside the box can enter and exit when the main box is isolated from the atmosphere, thus avoiding the trouble of repeatedly vacuumizing and inflating the main box. 2. Function of glove box 1) Closed circulation: the vacuum glove box and the gas purification system form a closed circulation system, and the gas purification system provides the gas circulation power. 2) Man machine interaction: equipped with color touch screen and Chinese interface to realize man-machine interaction and convenient operation 3) Automatic control (the system is controlled by the integration of man-machine interface of color touch screen and PLC program control system)    ★ Realization function: manual / automatic control of box pressure;    ★ Purification status of manual / automatic control gas purification system;    ★ Automatically control the reduction process of the gas purification system;    ★ Reduction, purification and conversion purification column of manual / automatic purification system (when double purification columns are configured);    ★ Automatic box atmosphere alarm; 4) Reduction and regeneration The purification system adopts renewable / reduced purification mate...

What Are the Advantages of the Lithium Battery Made By Auto Stacking Machine Advantages and disadvantages of the lithium battery made by the battery electrode stacking machine with the continuous expansion of the battery application field, after the size of the lithium-ion battery in the traditional structure is enlarged, some internal adverse reactions caused by the specific structure are also enlarged. At this time, there is an urgent need for a more optimized cell structure to meet the design requirements of the large capacity square battery. Compared with the traditional winding electrode structure, Its advantages are mainly reflected in the following aspects. Battery performance: 1. Compared with the winding structure made by electrode winding machine, the stacked battery has better cycle characteristics, safety characteristics and energy density. The stacked battery has a uniform reaction interface. Due to the complex characteristics of the winding structure, there are many bending and thickness change areas in the length direction of the entire pole, especially the small angle bending area near the middle of the core and the fluid collecting welding area. Due to the uneven winding tension and shape change, it is easy to cause wrinkling and deformation of the diaphragm and the pole piece. The positive and negative poles cannot be effectively contacted, resulting in a reaction dead zone. During charging, the phenomenon of "lithium precipitation" occurs at the edge of the fold, resulting in insufficient reaction of the effective active substances of the battery, lower energy density of the battery and lower cycle performance of the battery. At the same time, it also causes great potential safety hazards. The stacking cell structure fundamentally avoids this problem, The bending area and thickness change area are reduced, the surface of the pole piece is flat, without the influence of tension in the length direction, the contact between the pole piece and the diaphragm is better, the interface reaction is uniform, the capacity of the active material is brought into full play, and the performance is fundamentally improved. 2. Compared with the winding structure, the stacking structure has more uniform current density, excellent internal heat dissipation performance, and is more suitable for high-power discharge. Battery appearance: 1. Due to the influence of the winding tension and the particularity of the winding structure, the winding structure cell is prone to deformation and surface thickness change, which is also aggravated by the increase of the cell size. At the same time, the shrinkage and deformation of the material during the use of the battery will also cause certain thickness change, especially the aluminum-plastic composite film packaging battery, which is widely used at present, has poor strength of the battery shell, The change of internal shape causes the change of overall dimension, which affects the use and also brings certain...

The Importance of Lithium Ion Battery's Environment Test 1. Prevent explosion and other safety accidents caused by misuse of lithium ion batteries. The emergence of lithium-ion batteries has brought great convenience to many electronic manufacturers, especially the widespread use of rechargeable batteries. However, the use of these batteries has also caused many accidents. Part of the reason is that the detection of lithium-ion batteries is not in place. There will be specific temperature reports and appropriate environmental preservation reports for lithium-ion battery testing, from which the correct battery usage can be obtained. For example, a high temperature battery burning test machine is necessary to test battery burning resistance. 2. Extend the service life of lithium ion batteries The lithium-ion battery testing service professionally provided on the market carries out a high degree of simulation testing, which determines the battery life, including the charging current, the storage environment, and the user's use of the battery. Lithium ion battery detection can detect the battery capacity value to remind users to pay attention to its saturation during charging. And also the battery environment testing equipment will help to forecast the battery’s status under different environments. This is about the fact that many manufacturers can effectively prolong the service life of their products. 3. Performance test to clarify the direction of use Lithium ion batteries are used in the production of major electronics and electrical appliances, which can be seen everywhere in life. Companies specialized in lithium-ion battery testing will distinguish the applicable scope of various batteries and answer questions about the use limits. Lithium ion battery is a kind of durable goods. Determining the direction of good use can reduce many unnecessary costs, which is also one of the important aspects of lithium ion battery testing. The importance of lithium-ion battery testing is summarized in the above aspects. Checking the safety problems of lithium-ion batteries can reduce the occurrence of accidents. The detection of lithium-ion batteries also includes the flow and capacity of batteries, which can effectively prolong the service life of electronic products. Another important thing is that lithium-ion batteries have a wide range of use, and the specific range of use can be determined through testing. Acey new energy is a professional supplier of lithium battery testing machines for different use.

Why Should the Battery Pack Have the Aging Test First, in order to make the electrolyte soak better, which is conducive to the stability of the lithium-ion battery pack’s performance. Second, after aging, the active substances in the positive and negative materials can promote the acceleration of some side uses, such as gas production and electrolyte decomposition, so that the electrochemical performance of lithium-ion battery pack can quickly reach stability; The third is to screen the consistency of lithium-ion battery pack after aging for a period of time. After formation, the voltage of the cell is unstable, and its measured value will deviate from the actual value. After aging, the cell voltage and internal resistance are more stable, which is convenient to screen batteries with high consistency. The battery performance after high-temperature aging is more stable. Most lithium-ion battery manufacturers adopt the high-temperature aging operation mode in the production process, aging at 45 ~ 50 ℃ for 1 ~ 3 days, and then put it aside at room temperature. After high-temperature aging, potential adverse phenomena of batteries will be exposed: for example, voltage change, thickness change and internal resistance change are comprehensive indicators that directly test the safety and electrochemical performance of these batteries. Temperature has a great influence on the cycle aging rate of lithium-ion battery pack. At lower temperature, the cycle life is reduced due to strengthened lithium elemental electroplating. Too high temperature shortens the battery life due to the aging reaction of the driver. Therefore, the best cycle life of lithium-ion battery pack can be obtained only at an appropriate temperature. Acey new energy is a professional supplier of lithium battery aging test machine.       

Operational Principle of Lithium Battery Auto Sorting Machine What is the battery cell sorting machine? The battery sorter is usually designed according to international standards. Each communication of the sorter system will have a separate constant current and constant voltage. Generally, it adopts the design structure of module with plug and playback. When sorting, you can delete or load module units without restriction. This function also facilitates some daily maintenance of the system. The 11 channel lithium battery sorter is a test and sorting equipment for the internal resistance, voltage and other parameters of cylindrical batteries. It is equipped with a high-precision automatic test system for internal resistance and voltage. The equipment sends the battery to the specified gear according to the internal resistance and voltage values set on the computer software Working principle of battery cell sorting machine 1. Upper feeding part The manual only needs to put the discharge box at the position of the feeding bin, and then pull out the bottom stop. The feeding is very convenient and there will be no clamping phenomenon. The grooving teeth are driven by the motor and rolled into the battery in turn and transported to the buffer belt. 2. Feeding mechanism The PVC belt is used to transport the battery cell. The discharging method is one port releasing two. The conveyor belts on both sides are transported and tested respectively. The testing is carried out synchronously, and the efficiency is very high. This really improves the efficiency in a battery pack assembly line. 3. Test the conveyor belt pulling mechanism The transfer mechanism is composed of a conveyor belt pulling mechanism and a material retaining mechanism. When testing OCV and sorting the battery cell. There are two sets of OCV test and sorting structures, one on the left and one on the right, so you don't have to worry about shutdown or material jamming. If there are abnormalities on one side, you can continue production on the other side 4. Battery cell suction mechanism When the test is completed, the manipulator goes down to suck the battery cell. The cell suction mechanism adopts magnet suction. Because battery cells can be sucked by electromagnetism, the manipulator goes down to suck 11 cells at one time. 5. Sorting mechanism After the battery cell is sucked up, it is accurately put into each gear by the XY axis screw rod, and then transported out along the sorting belt line. There are 11 sorting belt lines, which represent the battery cell of 11 gears respectively. The discharging of the battery cell is controlled by 11 groups of suction structures. When testing which gear the battery cell is to be placed on which belt line, the battery cell sucked by the cylinder control magnet will fall off on which belt line when the magnet is released, and the surplus belt will flow out Acey new energy is a professional supplier of lithium battery auto sorter. There are 5 chan...