Notification of National Day To our valued business associates, clients and friends: Have a nice day! National Day is coming.We will have a holiday from October 1st to October 7th,2022, you can leave us a message for inquiries and after-sales questions, and we will reply you as soon as possible, thank you! Best regards to you and your family Emergency contact : Allen Tang E-mail:allen@xmacey.com Tel&WhatsApp&Wechat:+86-18950009155. Xiamen Acey New Energy Technology Co.,Ltd

How Does the Lithium Battery Double-sided Spot Welder Work? The double-sided spot welding machine for lithium battery pack is developed on the basis of single-sided spot welding machine. It is suitable for welding various lithium battery spot welding machines, fully realizing one machine for multiple purposes. How the double-sided spot welder for lithium battery pack is realized, and its working principle is revealed for you. Working principle of double-sided spot welder for lithium battery pack Double side spot welding machine. During the development of spot welding equipment, battery spot welding equipment can be customized according to the production process and welding requirements of users. There are many types of XY axis spot welding machines, double-sided spot welding machines and single head spot welding machines for welding lithium battery packs. Double side spot welder is developed on the basis of single side medium frequency spot welder. First, you need a workstation. Such a workstation is required for welding of some parts. The second part is the requirements for purchasing lithium battery assembly and processing equipment. The premise is that the transformer of intermediate frequency spot welding machine must have a load rate greater than 50%. The dual station intermediate frequency spot welding machine uses a group of main control transformers and a group of controllers to work between the two stations, and must have self-locking features. Medium frequency spot welding machine adopts high-performance pneumatic components. The winch and guide shaft are chrome plated, and the transmission pressure is flexible and reliable. The secondary interior of the welding transformer is cooled by water. It adopts optimized design, high permeability materials, low no-load loss, strong and stable power output, and long service life. Microcomputer controller control, multi standard welding, double pedal, double pulse, double current control, thyristor temperature monitoring and multiple protection functions. The main circuit is controlled by two-way water-cooled thyristor to ensure balanced and reliable current output. The medium frequency spot welder adopts a dual station design, which is suitable for the welding of various lithium battery spot welders, fully realizing one machine for multiple purposes. Acey new energy is a professional supplier of both manual spot welding machine and automatic welding machine. Welcome to contact us for more details.

Discharge C Rate and Correct Charging and Discharging Method of Polymer Lithium Battery Polymer lithium battery is a kind of soft packed lithium battery with gel electrolyte, also known as pouch lithium battery. For the new polymer battery, since the battery will automatically enter the sleep state after being placed for a period of time, the capacity of the polymer battery is very low at this time, and it will also affect the shortening of the service time of the battery. Charging and discharging methods of polymer lithium battery 1. Discharging The discharge current of polymer lithium battery shall not exceed the following standards, and the discharge must be carried out within the scope of this standard. The discharge current of single cell must be less than 2C5A. The temperature range of polymer lithium battery discharge is - 20 ~ + 60 ℃. The discharge termination voltage of single cell shall not be less than 2.75V. 2. Charging The charging current and voltage of the polymer lithium battery shall not exceed the following standards. If the specified value is exceeded, the charging and discharging performance, mechanical performance and safety of the battery cell may be damaged, and heating and leakage may be caused. The polymer lithium battery charger must be able to charge at constant current and voltage. The charging current of the single battery during charging must be below 1C5A. The temperature range during charging is 0 ~ + 45 ℃. When the polymer lithium battery is charged, the voltage shall not exceed 4.23V. Discharge C rate of polymer lithium battery: C: It is used to represent the ratio of battery charge and discharge current, i.e. magnification. For example, for a 1200mAh battery, 0.2C indicates 240mA (0.2 magnification of 1200mAh), and 1C indicates 1200Ma (1 magnification of 1200mAh). The charge and discharge efficiency is also related to C (rate). Under the condition of 0.2C, the charge and discharge efficiency of polymer lithium battery should be 99.8%. Correct charging and discharging mode of polymer lithium battery: Charging: the charging and discharging of polymer lithium batteries and liquid lithium batteries are actually the same. There are mainly two ways of constant voltage charging and constant current charging, which can also be carried out alternately. In constant current charging, the capacity of the battery increases with time, and the internal resistance of the battery also increases constantly, so the charging becomes slow. At this time, we should not think that the charging is complete, but it will take a period of slow charging. While the manufacturers of general polymer lithium-ion batteries first use constant current to charge the batteries, and then use constant voltage current to charge the batteries. Current, voltage and cell phone power are all changing with time, which ensures that the cell phone's battery can be fully charged quickly. Discharge, we all know that as long as we turn on the mobile phone, we ar...

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...