Electrolytic copper foil is an important material for the manufacture of copper clad laminates (CCL), printed circuit boards (PCB), and lithium-ion batteries. In today's rapid development of the electronic information industry, electrolytic copper foil is called the "neural network" of electronic product signal and power transmission and communication.Why use copper foil for anode electrode of lithium battery? 1. Copper and aluminum foil has good conductivity, soft texture and low cost. 2. Copper foil and aluminum foil is relatively stable in the air. 3. The positive and negative potentials of lithium batteries determine the aluminum foil for the cathode electrode and the copper foil for the anode electrode. 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

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