For lithium-ion batteries, the commonly used positive current collector is aluminum foil, and the negative current collector is copper foil. In order to ensure the stability of the current collector inside the battery, the purity of both is required to be above 98%. With the continuous development of lithium battery technology, whether it is lithium batteries used in digital products or batteries for electric vehicles, we all hope that the energy density of the battery is as high as possible, and the weight of the battery is getting lighter and lighter, and the most important thing in the current collector is Reduce the thickness and weight of the current collector to reduce the volume and weight of the battery intuitively. There are three reasons why lithium-ion batteries use aluminum foil for the positive electrode and copper foil for the negative electrode: First, copper and aluminum foil has good conductivity, soft texture and low price. We all know that the working principle of a lithium battery is an electrochemical device that converts chemical energy into electrical energy. In this process, we need a medium to transfer the electrical energy converted from chemical energy. Conductive materials are needed here. Among ordinary materials, metal materials are the most conductive materials. Among the metal materials, copper foil and aluminum foil are cheap and conductive. At the same time, in lithium batteries, we mainly have two processing methods: winding and lamination. Compared with winding, the pole pieces used to prepare the battery need to have a certain degree of flexibility to ensure that the pole pieces do not suffer from brittleness during winding. Among the metal materials, copper aluminum foil is also a softer metal. Finally, the cost of battery preparation is considered. Relatively speaking, the price of copper and aluminum foil is relatively cheap, and there are abundant copper and aluminum resources in the world. Second, copper and aluminum foil is relatively stable in the air. Aluminum is easy to chemically react with oxygen in the air, forming a dense oxide film on the aluminum surface layer to prevent further aluminum reaction, and this thin oxide film also has a certain protective effect on aluminum in the electrolyte. Copper itself is relatively stable in air, and basically does not react in dry air. The third is that the positive and negative potentials of lithium batteries determine the aluminum foil for the positive electrode and the copper foil for the negative electrode, not the other way around. The positive electrode potential is high, the copper foil is easily oxidized under high potential, and the oxidation potential of aluminum is high, and the surface of the aluminum foil has a dense oxide film, which also has a better protective effect on the internal aluminum. Both are used as current collectors because they have good electrical conductivity, soft texture (maybe it will also be good for bonding), and are relati...

Customers ordered several vertical ball mill recently,and ready to shipping.Ball mill has a lots of functions in many aspect.  The planetary mill is an indispensable device for mixing, is designed to crush, grind, and disperse metal, non-metal, organic, Chinese herbal medicine and other powders. It is especially suitable for laboratory research and use. Strong shearing, impact and rolling can achieve the purpose of crushing, grinding, dispersing and emulsifying materials. The planetary ball mill is equipped with four ball milling pots on the same turntable. When the turntable rotates, the ball milling pot revolves around the axis of the turntable while rotating around its own axis for planetary motion. The grinding balls in the tank collide with each other in high-speed motion to grind and mix the samples. The product can be used to grind and mix products with different particle sizes and materials using dry and wet methods. The smallest particle size of the ground product can be as small as 0.1 microns. It can well meet the requirements of various process parameters. At the same time, due to its advantages of small batch, low power consumption, and low price, it is the first choice for schools, research units, and companies to conduct research on crushing technology, new materials, and coatings. ACEY New Energy Technology is specializing in researching and manufacturing of high-end equipment for lithium-ion batteries.We have 400ml planetary ball mill, and 2l, 4L, 6L,20L etc and different material of grinding jar and grinding balls. Provide customized service.Welcome to inquiry.

As the main source of electricity in new energy vehicles, batteries provide power support for various systems, and their quality directly affects the normal driving of the vehicle. So how do we measure the quality of the battery? We can judge from the following aspects:    1. Appearance judgment Observe whether the appearance is deformed, bulging, leaking, ruptured, scorched, scorched, and whether there is oxide seepage at the screw connection, etc.   2. Battery testing equipment The fastest inspection method is to test the internal resistance and discharge current. A good quality battery has very small internal resistance and a large discharge current. Of course, there are also battery voltage drop (referring to the voltage difference when the battery is stored for a certain period of time in a static state), cycle life (referring to the number of times the battery is charged and discharged at a standard constant current and constant voltage), and battery platform time (referring to a certain cut-off voltage, The battery can discharge the total capacity of the amount of electricity), as well as resistance to high and low temperature discharge, large current overcurrent. To test the overall performance of a battery, a dedicated tester is necessary.   Xiamen Acey New Energy Technology Co., ltd, it is an industrial automation equipment manufacturer integrating product design and development, manufacturing, sales and engineering services. The company’s main products are laboratory equipment, lithium battery equipment, polymer battery equipment, glove box purification systems, and super capacitor equipment. Especially in the research and development of automated production equipment such as battery experimental equipment, lithium battery application research and development equipment, polymer pouch cell equipment, super capacitor application research and development equipment, inert gas glove box and other automated production equipment.

Lithium-ion battery PACK is divided into four parts: processing, assembly, testing, and packaging. The battery PACK must be screened before. Different customers have completely different requirements for the cells before the lithium-ion battery PACK. Many manufacturers have a lot of battery PACK factories. Strict requirements, let’s take a look at the important process standards of lithium-ion battery PACK today. In the lithium-ion battery pack industry, people call batteries that are not assembled and can be directly used individually as batteries, and the finished battery pack connected to the PCM board with charging and discharging functions is called lithium-ion battery PACK. The PACK process of lithium-ion batteries refers to the assembly of battery cells, protective plates, battery wires, battery nickel sheets, battery accessories, battery boxes, battery membranes, etc. into finished batteries by welding. The battery pack PACK requires the battery to have a high degree of consistency (capacity, internal resistance, voltage, discharge curve, life). The vast majority of the existing lithium-ion battery PACK technology is to link the cells together by welding, which also complicates the maintenance of battery problems. In addition, the batteries may face many thorny problems when they are batched. Reliability of batch products, excellent battery PACK technology, and finished product testing are essential. 1. Full inspection standard of battery cell appearance The appearance standard of cylindrical batteries: no short circuit, oxidation, rust, leakage of veneer pad or skewed surface pad, film breakage, film wrinkle, etc. The appearance standard of the square battery cell: no electrolyte, burr or other contaminants on the surface, no leakage, bulging, deformation, short circuit, etc., no skew or warping of the surface pad, no oxidation, dirt, desoldering, etc. on the composite nickel belt. The appearance standard of polymer batteries: no electrolyte or other pollution on the surface, no leakage, swelling, deformation, etc., no fracture of the tab, no damage to the corners, no delamination, etc. 2. Standard for battery cell veneer pad The surface pad is required to be firmly pasted, not skewed, warped, not beyond the edge of the end face of the battery, and not cover the negative rivet---aluminum shell battery positive cap (for multiple parallel strings, use formed barley paper or red steel paper to paste)-- -For steel shell cylindrical batteries; covered with textured paper or high-temperature adhesive paper---polymer batteries. 3. Cell voltage and internal resistance test Test equipment: multimeter, multi-function test stand, battery internal resistance tester, general battery test stand, scanner. Test connection method: The positive and negative terminals of the battery are contacted with the positive and negative thimble of the test frame respectively. 4. Battery cell combination standard Cylindrical battery: Adhesive bonding process, using g...

The power battery for electric vehicles is a lithium battery: the positive electrode is lithium iron phosphate (lithium cobalt oxide LiCoO2, or lithium manganese oxide LiMn2O4 or ternary compound Li(NiCo)O2) coated on aluminum foil, but lithium iron phosphate is the best . The negative electrode is copper foil coated with graphite or lithium titanate. There is a separator between the positive and negative foils, which are wound together. Put the wound positive and negative sheets (including the diaphragm) into the battery case together, inject the electrolyte, and then vacuum package to complete the production of a single battery. The procurement cost of lithium battery cathode materials accounted for 30%, anode materials accounted for 20%, separator materials accounted for 20%, electrolyte accounted for 20%, and casing accounted for 10%. The diaphragm is polyacrylic acid. The positive electrode material has a great influence on the battery performance (referring to the lithium compound coated on the aluminum foil), and the entire positive electrode is the most critical part of the battery. The development of the new energy automobile industry is not only related to national energy security, people's livelihood and environmental protection, but also involves the destiny of my country's automobile industry. The positive electrode of the lithium battery of electric vehicles needs aluminum foil, and the weight of the vehicle itself is required to be as light as possible. Aluminum is the preferred material for lightweighting of automotive parts. Aluminum plays a vital role in the development of electric vehicles and hybrid vehicles. It is predicted that China's electric vehicle ownership will account for more than 30% of the total in 2030. China's new energy automobile industry has opened up a new application field for the application of aluminum, with great potential and considerable consumption. The anode aluminum foil for lithium batteries has no special requirements on the performance of the aluminum foil, and the Chinese aluminum foil industry can fully meet all the requirements for this kind of foil.

Each member of our ACEY staff is committed to making the best battery equipment（Lab scale line） to help you achieve project success. Our products are on big promotion in March, cylindrical cell fabrication line, pouch cell fabrication line, coin cell fabrication line, we provide you with best one-solution. According to the production process of lithium-ion batteries, lithium-ion equipment can be mainly divided into front-end equipment, mid-end equipment and back-end equipment; likewise, there is a precise connection between lab R&D equipment and production process, "burning Mixing, coating" to "forming, packaging, testing" and a complete set of battery manufacturing process needed experimental equipment, basically covering every link of the industrial chain. Here at Xiamen Acey New Energy Technology Co., Ltd, we offer excellent services, such as advising and consulting, based on years of experience and a profound understanding of customers' needs. Electric car industry as the next decade of technology trend, our mission is to dedicate ourselves and our resources to creating lithium battery equipment for you. Inquiry now！Exceptional quality, competitive pricing are waiting for you.

ACEY has resumed work for a week. During this time, we have been busy producing for customers. After a week of hard work, we have started shipping this week. There are coin cell crimping machine, customized vacuum drying oven, battery materials（NMC622, NMC811, NMC622, CMC powder, LTO, NCA powder, etc ). Acey is always trying to provide the best service and reliable products, there are professional engineers who can meet your custom requirements. In the lithium battery industry, there are many technical requirements involved, For example pouch cell die cutter need to be customized according to your battery size. Punching machine is required to cut different size of electrodes and separators. ACEY is committed to meet the needs of customers and make a due contribution to the lithium industry. The order of other equipment is also in sequence to produce, please rest assured, ACEY never let you down.

Dear new and regular customers, ACEY  resumes to business after China New Year, All departments began to work normally. Especially for the orders we received before the holiday, we started to prepare materials for production in sequence, including automatic spot welder, charge-discharge test equipment, battery forming machine and battery lab equipment (roller press, coater and ball mill) vacuum drying oven and glove box.