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Lithium battery electrolyte is the carrier of ion transmission in the battery. Generally composed of lithium salt and organic solvent. The electrolyte plays a role in conducting ions between the positive and negative electrodes of the lithium battery, which guarantees that the lithium ion battery obtains the advantages of high voltage and high specific energy. Electrolyte is generally prepared from high-purity organic solvents, electrolyte lithium salts, necessary additives and other raw materials under certain conditions and proportions. TOB NEW ENERGY LIMITED Our company can prepare the electrolyte according to your requirements for the ratio of electrolyte and supply it to you. Our company can also provide a full set of other lithium battery materials and equipment, if you have any needs, please feel free to contact me for an inquiry! Thank you for reading! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype: tob.gavin@tobmachine.com Wechat: TOB-007

TOB-VFC-800 is a vacuum film coating machine used for laboratory lithium battery electrode coating.This battery coating machine with automatic heating and drying function.This machine have coating length 800mm suit for 18650 cylinder battery electrode making and can also making pouch cell electrode if you want. And this battery coating machine can change different film covering machine to change the coating thickness,We can add a digital dial indicator on it as well,to measure the real-time coating thickness.And this machine add a extra vacuum function to vacuuming the foil,which can ensure our coating quality,improve the uniformity of our coating. And if you just need research coin cell and do not need the electrode long as this machine,our TOB-VFC-150 battery coating machine maybe can also satisfied your requirement,whose coating length is 150mm and have same function as the TOB-VFC-800. We are TOB New Energy,we are not only provide the equipment of the battery,but also provide the knowledge of battery. Contacts: Miss carol(Sales&Engineer) E-mail:tob.mae@tobmachine.com Skype:583432443@qq.com Wechat:TOB-005

Why is aluminum foil used for the cathode? It is mainly divided into three aspects. The first is the electrochemical aspect. As a metal material, aluminum has a middle activity. It will form an aluminum oxide protective film in the air, which has high electrochemical potential and good corrosion resistance; secondly, in terms of mechanical properties , easy to process, good mechanical strength, weldable and riveted, and good thermal and electrical conductivity; again in terms of cost, the reserve is large, the cost is low, it is not a heavy metal, and it is not a strategic resource; therefore, it has been used as a collector of cathode electrodes for so many years. 2) Inspection of aluminum foil: The inspection of incoming materials by general battery companies includes outer packaging, appearance, thickness, width, areal density, material, welding performance, tensile strength, elongation, etc., depending on the thickness and material of aluminum foil. There are internal testing standards, and the testing is relatively simple, so I won’t go into details here. 3) The technological development of aluminum foil: With the improvement of the energy density of power batteries, the aluminum foil as the current collector is getting thinner and thinner, so it is required to have lower impurity content, less self-discharge, better thickness uniformity, Higher surface tension, better bonding performance, thinner thickness, higher strength, higher conductivity, suitable elongation and other requirements. At the same time, in order to increase the content of active substances, aluminum foil surface coating technology It is also developing very quickly. The following will briefly introduce these new technologies. A. Coating technology: The use of functional coatings for surface treatment of battery conductive substrates is a breakthrough technological innovation. Carbon-coated aluminum foil is to coat dispersed nano-conductive graphite and carbon coated particles uniformly and delicately On aluminum foil. It can provide excellent static electrical conductivity, collect the micro current of the active material, which can greatly reduce the contact resistance between the material and the current collector, and can improve the adhesion between the two, which can reduce the use of adhesives In turn, the overall performance of the battery is significantly improved. B. Porous aluminum foil: With the development of technology, porous aluminum foil technology has also emerged, which can carry more active materials and make the contact between active material particles closer. As far as the current technology is concerned, porous aluminum foil has not been applied in large quantities, and there are still problems in coating, low tensile strength, rolling press broken tape, and large burrs leading to large self-discharge. Further research and solutions are needed. There are some small soft package data that can significantly increase the energy density, but we believe ...

Today we finally finished our American customer 18650 cell PVC film shrink wrap machine. After we discuss with our customer server days and then we had a big improve of the machine safety part. This machine product rate can arrive 50 ppm, with high effective accurate and high safety. This battery PVC film wrapping machine have automatic film feeding and automatic battery feeding function. Just need manually received the battery that been filmed. And we can also provide automatic battery clean function and automatic battery feeding. And if you want add any other function, we can also customized. Performance characteristics of automatic 18650 cell PVC film shrink wrap machine: 1. The whole box of batteries is put into the battery tray, and the battery is automatically sucked out by a powerful magnet. 2. A single battery is fixed by a precision clamp on the conveyor belt, and the positioning is accurate. 3. The whole roll of casing is automatically discharged, and the casing is automatically fed by a stepping motor from the vertical direction, and the casing is automatically cut. 4. Set up multiple bushings and battery positioning devices to ensure the accuracy and consistency of the battery bushings. 5. The automatic battery PVC film covering machine has a scientific and reasonable design of the heating air duct. A single battery can rotate in the heating zone to ensure uniform shrinkage of the casing. 6. The fully automatic battery wrapping machine adopts programmable controller PLC to realize fully automatic control, the machine runs stably and the degree of automation is high. We are TOB New Energy,we are not only provide the equipment of the battery,but also provide the knowledge of battery. Contacts: Miss carol(Sales&Engineer) E-mail:tob.mae@tobmachine.com Skype:583432443@qq.com Wechat:TOB-005

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

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