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The Aluminum laminated film is mainly a composite material composed of ON/AL/CPP (outer nylon layer/middle aluminum foil layer/inner heat-sealing layer), and the layers are bonded by an adhesive. Aluminum laminated film is one of the key materials for pouch cell lithium battery packaging.It plays a role in protecting the internal battery cell material. It has strict requirements in terms of barrier properties, cold stamping formability, puncture resistance, chemical stability and insulation. Compared with cylindrical and square aluminum shells, soft-pack batteries have obvious advantages in energy density, safety and flexibility, and have been widely used in 3C consumer, new energy vehicles and energy storage fields. TOB NEW ENERGY provide battery Aluminum laminated film pouch cell packaging materials for lithium-ion polymer pouch cell cases. The functional structure of aluminum laminated film is generally 3 layers, including the outer nylon layer (ON layer), the middle aluminum foil layer (AL layer), and the inner heat seal layer (CPP layer or PP layer). The main raw materials include nylon, aluminum foil, and polypropylene. CPP and adhesives, etc. The outer ON layer protects the AL layer from scratches, and requires the outer material to be puncture-resistant and impact-resistant; the AL layer acts as a barrier to prevent moisture intrusion and block oxygen to protect the battery contents; the inner layer is an electrolyte-resistant layer to prevent leakage The electrolyte corrodes the AL layer, requiring high composite strength with the aluminum foil layer. The key to the production of aluminum laminated film is to press and bond the three layers of functional materials uniformly and firmly through adhesive additives between the layers. Therefore, the thickness of conventional aluminum laminated films on the market is generally divided into three levels of 88μm, 113μm, and 153μm, of which 88μm and 113μm are used for consumer electronics, and 153μm is used for new energy vehicle power lithium batteries and industrial energy storage fields. Contacts: Miss carol(Sales&Engineer) E-mail:tob.mae@tobmachine.com Skype:583432443@qq.com Wechat:TOB-005

The vacuum oven plays a particularly important role in the baking of materials, pole pieces, and batteries in the production process of lithium batteries.  It fully removes water and ensures the high performance of the battery. A batch of vacuum oven for the cylindrical lithium battery production line has been completed. They will be sent to the customer's factory soon. Vacuum ovens are widely used in chemical, electronics, food, light industry, medicine, and other industries, and can dry materials under vacuum. It has the advantages of fast drying speed, low pollution and no damage to the internal quality of the dried items. The special vacuum oven for lithium batteries is a vacuum oven specially designed for the baking process of lithium-ion batteries. Its working principle: the boiling point decreases with the decrease of air pressure. The boiling point of water is significantly reduced under negative pressure. When the pressure drops to -0.089Mpa, the theoretical boiling point can be reduced to 45°C. In a negative pressure environment, moisture is easier to vaporize. After the special oven for lithium battery is heated for a period of time under normal pressure, the moisture in the battery or pole piece is converted into water vapor; after the moisture evaporates, vacuum can be used to extract the water vapor; nitrogen is filled to break the vacuum to maintain a dry environment. In the actual baking process, the above three steps are different according to different processes, and generally require multiple cycles. TOB NEW ENERGY LIMITED is specialized in lithium battery industry, our company can provide you a turnkey project, if you are interested in it, feel free to contact us! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype: tob.gavin@tobmachine.com Wechat: TOB-007

A batch of vacuum planetary mixers for the cylindrical lithium battery production line has been completed. They will be packed into 4 containers and sent to the customer's factory. Application fields of lithium battery vacuum planetary mixing machine: fuel cell, power battery, polymer lithium ion battery (LIP), button type lithium battery, lithium iron phosphate battery, electric vehicle battery, lithium power battery, metal hydride nickel battery, mercury-free Alkaline zinc-manganese batteries, lithium (lithium-ion) plastic batteries, electrochemical energy storage supercapacitors, lithium-ion battery slurry. TOB NEW ENERGY LIMITED is specialized in lithium battery industry, our company can provide you a turnkey project, if you are interested in it, feel free to contact us! For more information, please contact us: Email : tob.amy@tobmachine.com Skype : amywangbest86 Whatsapp/Phone number : +86 181 2071 5609

Recently we are customizing an extrusion coating machine for a customer for the cylindrical battery production line. The equipment will be completed soon and sent to the customer's factory. The key technology of high-speed, high-precision intelligent lithium battery coating machine mainly includes extrusion coating, fast drying, tension correction and real-time film thickness monitoring feedback closed-loop control. Optimization of extrusion coating die parameters through finite element simulation, using suspension drying technology and aerodynamic design technology to achieve rapid drying, tension correction adopts fully closed loop tension control and fully automatic EPC real-time correction. Comprehensive use of motion control, servo drive, sensors, computer technology and other disciplines and technologies, Realize the multi-functional composite integrated structure of unwinding, deviation correction, tension control, slurry conveying, coating, drying, winding, etc. TOB NEW ENERGY LIMITED is specialized in lithium battery industry, our company can provide you a turnkey project, if you are interested in it, feel free to contact us! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype: tob.gavin@tobmachine.com Wechat: TOB-007

Today, one semi-automatic battery stacking machine will be sent to our customer, this battery stacking machine will be used for laboratory polymer lithium battery research. The stacking machine is generally composed of ten mechanisms, namely: feeding mechanism, positive electrodes box, negative electrodes box, positive secondary positioning mechanism, negative secondary positioning mechanism, positive electrodes feeding mechanism, negative electrodes feeding mechanism, laminating platform, paste glue mechanism, discharging mechanism. The working principle of the semi-automatic battery stacking machine is to load the positive and negative sheets into the material box, and the manipulator moves left and right to pick up the electrodes in the positive and negative material boxes. After the second positioning, the positive and negative plates are alternately placed on the lamination table . The separator unwinds actively, and the lamination table drives the separator to reciprocate left and right to form a Z-shaped stack. After the lamination is completed, it is cut according to the set length, the battery core is automatically sent out, and the glue is manually applied. By the way, we also have full automatic stacking machine or manual stacking machine, if you are interested in it, feel free to contact me. Thank you for reading! Contact person:Gavin Zhu (Engineer & Sales) Email : tob.gavin@tobmachine.com Skype : tob.gavin@tobmachine.com Wechat : TOB-007

The vacuum drying is to put the materials to be dried in an enclosed space, use vacuum equipment to reduce the air pressure in the enclosed space to an atmospheric pressure, and at the same time continuously heat the materials. In this way, the water molecules in the material gradually diffuse to the surface of the material due to the effects of pressure difference and concentration difference. After obtaining sufficient kinetic energy on the surface of the material, the binding of the intermolecular attraction is gradually overcome, and it escapes into the vacuum chamber of low pressure and then passes The vacuum pump is discharged into the atmosphere. Vacuum drying processes: The first is the heat transfer process, the material absorbs heat through the heat source, heats up and vaporizes the internal moisture; Secondly, in the process of liquid mass transfer inside the material, the water inside the material moves to the surface in the form of liquid, and then vaporizes on the surface; Finally, during the gaseous mass transfer process of the moisture on the surface of the material, the water vapor vaporized on the surface of the material gradually escapes into the inside of the vacuum chamber and flows to the outside through the vacuum chamber. To complete the above heat and mass transfer process, temperature, pressure and concentration are the key control factors; Temperature: The temperature of the heat source should be significantly greater than the temperature of the material to meet the energy required for its own temperature increase and vaporization of moisture. The higher the temperature, the faster the drying. Concentration: The so-called concentration refers to the concentration of moisture in the material. The internal concentration of the material is higher than the surface concentration of the material. Under the action of capillary force and concentration difference, it migrates to the surface and eventually reduces the concentration of moisture. Pressure: The steam pressure on the surface of the material is higher than the partial pressure of steam in the drying oven, which is the core theory of vacuum drying. Vacuum drying thermodynamics mainly studies the relationship between the vaporization temperature of water, the saturated vapor pressure and the degree of vacuum. The theoretical basis can be Clapron. Clausius formula expression The vaporization temperature of water is positively correlated with saturated vapor pressure and negatively correlated with vacuum degree. The smaller the saturated vapor pressure, the lower the vaporization temperature of water. Similarly, the greater the vacuum degree, the lower the vaporization temperature of water. Therefore, it can be seen that water is easier to achieve low-temperature vaporization in a vacuum environment. When the temperature is maintained at a certain value, increasing the vacuum in the drying chamber can convert more moisture on the surface of the material into water v...

As a key part in the manufacturing process of lithium batteries, the welding process is applied to the connection of multiple positions of lithium battery aluminum/copper anode and cathode current collectors, electrodes, and battery packaging. Any welding joint defects will significantly affect the performance of lithium batteries. consistency. Therefore, it is necessary to understand the ultrasonic welding process. The principle of ultrasonic welding In the ultrasonic welding process, the transducer converts high-frequency electrical signals into ultrasonic vibration signals. High-frequency vibration is transmitted to the surface of the metal to be welded through the welding tool head. The interface metal oxide film is broken under a certain pressure and the intense friction of ultrasonic vibration, clean interface metal contacts and under the combined action of friction and ultrasonic softening, further plastic flow and diffusion will gradually increase the connection area and eventually form a reliable connection. Effect of welding pressure on welding The strength of the welded joint increases with pressure and then decreases. Welding pressure will change the sliding resistance of the welding interface. A small welding pressure will cause a small sliding resistance of the interface, so that the energy generated by the friction is not enough to form an effective connection at the interface; too much welding pressure causes the tool head to be pressed down too deep, welding the interface Metals bite each other, which affects the relative motion of the interface, hinders the further connection of the interface metals, and results in poor mechanical properties of the welded joint. Therefore, proper welding pressure parameters are decisive for welding quality. Effect of time on welding The welding time directly affects the energy input during the welding process and has a direct effect on the welding effect. The welding time is too short and the input energy is insufficient. It is difficult to form an effective solder joint due to insufficient friction; as the welding time increases, the temperature increases due to mutual friction, the workpiece material begins to soften, and the oxide film at the interface of the welding area is damaged and plastically deformed , Can form a better connection; when the welding time is further extended, the welding head is easy to form deep marks on the surface of the workpiece, which will adversely affect the welding effect. In addition, too long welding time will easily cause the welding head and the workpiece to be welded Bonding Effect of amplitude on welding In the ultrasonic welding process, the vibration system formed by the workpiece and the workpiece directly affects the instantaneous velocity of the vibration at the interface of the workpiece, which ultimately affects the friction heat generation and plastic deformation, which affects the welding quality. Contacts: Miss carol(Sales&Engineer) E-mail:to...

Today, one set TOB-DZF-6050-HT high temperature vacuum oven has been sent to our USA customer. Applicable scope of high temperature oven: For laboratories and production sites of scientific research units, professional colleges, industrial and mining enterprises and other units, and drying and heat-treating items under vacuum. Heating and drying items under vacuum has the following advantages; ⑴The drying temperature can be reduced. ⑵ Avoid oxidation of some items when heated. ⑶ Avoid heating air to kill biological cells. ⑷No dust damage By the way, we also can supply full set lithium battery equipment and battery materials for lithium battery research or production, if you have any needs, feel free to contact us. Thank you for reading! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype: tob.gavin@tobmachine.com Wechat: TOB-007