How Does Ultrasonic Spot Welding Machine Work? In the production process of the lithium-ion battery cell, the cell is composed of multiple layers of electric core electrode sheets. Each layer of electric core foil stretches out a layer of lug foil. After the cell sheets are aligned, the lug foil is also pasted and aligned together. It is necessary to weld the electric core sheets together to form the cell, and the lug foil is welded together to form the lug. Because the lug foil is very thin, only about 001mm, the traditional method is ultrasonic welding. During welding, the lower part of the superposed lug foil is padded with the upper bottom die as a support, the welding head of the ultrasonic spot welding machine is pressed on the superposed lug foil, and a certain pressure is applied to the lug foil through the welding head, then the ultrasonic welding device is started, and the welding head directly outputs the ultrasonic, realizing the resonance of the atoms on the adjacent lug foil under high-frequency vibration, so as to combine the lug foil. Another traditional welding method is secondary welding, that is, the superposed lug foils are initially welded by ultrasonic welding device to achieve the initial combination of lug foils, and then the ultrasonic welding device is used for secondary welding again to make the lug foils fit firmly. Ultrasonic welding technology for battery lug The high-frequency vibration wave is transmitted to the two metal surfaces to be welded. Under pressure, the metal surfaces are used to rub against each other to form the fusion between molecular layers. Its advantages are fast, energy saving, high fusion strength, good conductivity, good thermal conductivity, non sparking, and close to the cold state Ultrasonic welding of battery lug It is applied to the welding of battery positive and negative lug, the welding of terminal to harness, and the welding of terminal to terminal. Capacitor positive and negative electrode welding. Sheet to sheet welding, sheet to plate welding, sheet to line welding, line to line welding, plate to line welding, riveting welding. The welding materials are copper, aluminum and nickel strip. Ultrasonic welding of battery lug: it consists of machine, generator and acoustic resistance parts. The equipment consists of generator, acoustic resistor, pneumatic system, machine and bottom mold. (The sound resistance part is composed of three parts: transducer, horn and welding head) Acey new energy is an expert of lithium battery laboratory equipment and battery making materials for different cell research like cylindrical cell, coin cell and pouch cell. Welcome to send us your inquiries

Introduction of ACEY Prismatic Square Battery Cell Sorting Machine ACEY-ASPS The square battery/prismatic battery is one of the lithium-ion batteries, which is commonly used in electric bicycles, new energy vehicles and other fields. With the continuous progress of battery production process, the efficiency of battery manufacturing and production has been greatly improved. After the battery is produced, it needs to be tested and sorted. In the battery sorting operation, it is necessary to classify according to the detection information of each battery. In actual production, battery manufacturers often use sorting tools to classify and put batteries into different battery boxes according to their appearance size, weight, thickness and other information. After the battery box is full, the battery box can be transferred manually or through a transmission mechanism, and the empty battery box needs to be supplemented artificially for later sorting. In this process, continuous sorting equipment is required to complete the battery sorting efficiently. ACEY prismatic battery cell sorting machine is used to test and sort the internal resistance, voltage and other parameters of the square battery. Built-in battery IR tester, software developed based on relevant performance parameters of lithium battery, and sorting according to battery charging and discharging characteristic curve. The equipment has 10 grades of sorting, with an average capacity of 700 cells per hour. Technological process of battery cell sorter The equipment adopts stepping belt drive structure, professional voltage internal resistance tester, single channel test and horizontal moving module sorting. Working process: manual feeding → belt to test position → tester to test products → automatic identification → distribution of electric core module (lead screw servo+belt) → sorting of buffer channel. The equipment has battery NG, OK, identification map, production information traceability and other functions, and the traceability information can be uploaded to the customer's system. Precision voltage internal resistance tester The equipment can adopt different types of battery IR tester. The HIOKI BT3562A battery tester, which is used for high-precision voltage measurement (accuracy 0.01% rdg.), high-speed measurement with response time of 10ms+sampling time of 8ms, and a range of 3m Ω~3000 Ω. The test data is collected by the computer, and compared with the database settings through the network, it is convenient to reference the data at any time. ZX5560B battery tester is with high precision and good stability. The fastest test speed is 100 times/second, the minimum resolution is 0.1u Ω, and the voltage resolution can reach 10uV. Introduction to electrical control principle The equipment is controlled by an industrial personal computer. The time, pressure and position sensors are set as control signals to drive servo motors, directional valves, cylinders and other mechanisms, and automatica...

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.