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Lithium ion battery forming is the first charge process of the lithium ion battery.The purpose of this work is to make lithium ion battery have the electrochemistry active.The forming process is forming a solid electrolyte interface film(SEI film),the SEI film have the character of the solid electrolyte interface,is a electronic insulator but this film is a excellent conductor for Li+,the Li+can pass the SEI film freely.The important ingredient of the SEI film is Li2CO3、LiF、LiOH、ROCO2Li、ROLi etc.The quality of the SEI film have a big relativity with the forming process,if the forming process is not good,it could not forming a high quality SEI film,and then the will have bad influence of the cycle life and the electrochmistry performance. The forming process can activate the cathode and the anode material have the electrochmical reaction and the forming film ingredient of the electrolyte forming the SEI film at he surface of the anode,effectively prevent the reaction of the solvent and the anode active materials,admit the de-intercalation of the Li+.The state of the Li+directly influence of the battery anode interface,capacity performance,self discharge,cycle performance and safety performance. TOB New Energy can provide full set of battery formation charge and discharge machine. They are suitable for coin cell,pouch cell and cylindrical battery formation and grading in battery production line manufacturing.

A batch of battery formation and grading machine and other testers for the 18650 production line have been completed, they will soon be arranged to be shipped to the customer's factory by container. About the battery formation and grading machine detection system: 1. Scope of application: chemical composition and detection of lithium polymer, lithium ion, nickel hydrogen, and nickel cadmium batteries. 2. According to the design of the equipment manufacturer, there are entire control, single point start and single point stop for each channel. 3. It can work independently without a computer. The middle computer has its own keyboard and large-screen LCD English display, which is simple, convenient and intuitive to operate. 4. Using network connection and SQL database, centralized control of multiple connected cabinets, and centralized management, analysis and statistics of all data. 5. Modular design, easy to maintain. The hardware technology is advanced, stable and durable. 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! Thank you for reading! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype: tob.gavin@tobmachine.com Wechat: TOB-007

Battery cathode is one of the core component part of the battery,its advantages and disadvantages directly affect the battery performance. Generally speaking, cathode active substances are required as follows: ·Allow a large amount of Li+ embedding and ejecting (large capacity); ·High REDOX potential (high voltage); ·Good reversibility of embedding and ejection, small structural change (long cycle life); ·High lithium ion diffusion coefficient and electronic conductivity (low temperature, good multiplier characteristics); ·High chemical/thermal stability, good compatibility with electrolyte (good safety); ·Abundant resources, environment-friendly, cheap price (low cost, environmental protection). Generally speaking, the key performance indexes of cathode electrode materials include chemical composition, crystal structure, particle size distribution, vibrational density, specific surface area, pH value, specific capacity of first discharge, efficiency of first charge and discharge, cycle life, etc. Most of the cathode materials of the lithium battery is lithium oxide,generally the higher lithium content,the higher of the capacity.Like the Li content of the LMO is about 4.2%,and this value of LCO and LNO is about 7.1%.Lithium-manganese rich can be as high as about 10%.When material composition is fixed, the principal element content should be given in the form of actual test averages add tolerances to achieve the corresponding electrochemical activity and maintain stability between batches. The size of cathode materials will directly affect the preparation of battery slurry and electrode sheet. Generally, the size of large-size materials has low viscosity, good fluidity, less solvent and high solid content. The particle size of cathode electrode materials is usually measured by laser particle size analyzer.The equivalent diameter D50 of the largest particle when the cumulative distribution in the particle size distribution curve is 50% regard as average particle size.The particle size and distribution of positive electrode materials are closely related to the precursor, sintering and crushing process, and should be normally distributed under normal circumstances.Generally, lithium cobalt oxide and lithium carbonate are used as raw materials for the preparation of lithium cobalt oxide. Its sintering characteristics are very good, and it can be grown by controlling key factors such as Li/Co, sintering temperature and heating rate, so the requirements for raw materials are relatively low.Large abnormal-shaped particles are easy to appear in the powder materials grown and broken through sintering adhesion, and scratches and broken belts are easy to appear in the pulping coating and forming process. Therefore, the lithium cobalt oxide standard restricts the equivalent diameter Dmax of the largest particles in the particle size distribution curve.  

After there have a lot of customer feedback,and we introduce a new design semi-auto stacking machine. 1.    We changed part of the structure of the machine,compare with former stacking machine,we increase the height of the machine now,after these little change we can directly operate the machine in the ground rather than need put the machine in the table.and make the operate more convenience. 2.    We simplify the operate of the HMI screen of the battery stacking machine,it just have 3 interface of the machine now to ensure that our customer learn and use it easier. 3.    For the metal plate,we made a little change of it.For the former battery stacking machine,it is more sharp and angular.And now we made it more mellow and full,which made the battery stacking machine more beautiful and improved the safety of the machine,reduce the possibility of the human got injured. And the new battery stacking machine still remain the merit of former machine. 1.    All of the stacking process is automatic and we just need manually feeding the electrode and then take out the finished product. 2.    the move of the stacking sucking disc is controlled by the servo motor can convenient record the position of the sucker and have a high precision of the position which can ensure the stacking result. 3.    And for the electrode size of the battery stacking machine it is can be customized according requirement.

High temperature tube furnace, openable high temperature tube furnace liner made of light high temperature fiber material, composed of two semi-circular furnace bodies, easy to open, can be divided into vertical and horizontal, and can be installed on a designated furnace rack , Or install the furnace body on other work surfaces as needed, the furnace body and the controller can be integrated or separated. It has up to 32 heating program functions. Just turn on the power supply to set the program, the machine will work automatically and shut down automatically when the work is completed; the instrument is easy to operate, fast heating speed, adjustable heating speed, and lightweight. Main uses: widely used in ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, building materials, universities, scientific research institutes, industrial and mining enterprises for powder roasting, ceramic sintering, high temperature experiments, material processing ,quality inspection. If you are interested in it, please 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 surface treatment of battery conductive substrates with functional coatings is a breakthrough technological innovation. Carbon-coated aluminum foil and Carbon-coatedcopper foil is to coat dispersed nano-conductive graphite and carbon coated particles evenly and delicately on aluminum foil and copper 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 positive and negative electrode material and the current collector, and can improve the adhesion between the two and reduce the adhesion The amount of agent used, in turn, significantly improves the overall performance of the battery. Performance advantages of conductive coating carbon-coated aluminum foil and copper foil: 1. Significantly improve the consistency of the battery pack and greatly reduce the battery composition cost. 2. Improve the adhesive force of the active material and the current collector, and reduce the manufacturing cost of the pole piece. 3. Reduce polarization, increase rate and gram capacity, and improve battery performance. 4. Protect the current collector and prolong the service life of the battery. Thank you for reading! Contact person:Gavin Zhu (Engineer & Sales) Email:tob.gavin@tobmachine.com Skype:tob.gavin@tobmachine.com Wechat: TOB-007

The glove box is a laboratory device for filling the box with highly pure inert gases and circulating filtration of active substances.Also known as vacuum glove box, inert gas protection box, etc.The main function is the removal of O2, H2O and organic gases The inert gas in the glove box is closed circulation by the circulation fan and purifier. H2O, O2 can be removed continuously. Auto Purging - The replacement of the atmosphere inside the glove box can be achieved automatically by the purging valves. Automatic Regeneration - H2O and O2 removal material can be regenerated. The regeneration process controlled by program. Pressure Control in the Glove Box - The pressure in the glove box is controlled automatically by the Programmable Logic Controller (PLC). Working pressure can be set between +10mbar and -10mbar. If the pressure goes over+/- 12mbar, the system will be protected automatically. Automatic Vacuum Pump Control - The vacuum pump will be activated automatically when necessary, and will turn off after a period of idle time. 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) mail:tob.mae@tobmachine.com Skype:583432443@qq.com Wechat:TOB-005

For server days research we had finally finished this job. A new design battery winding machine,which you can used to winding different size battery by adjust the position of the winding needle. There have two way the battery cells core assembly : winding or stacking. The battery stacking type is to cut the cathode and anode electrode and the separator to a specified size, and then stack the anode piece, the separator, and the cathode piece into a small cell monomer, and then stack the small cell monomers in parallel to form a composition a large battery cell; the winding type is a process in which the electrode after slitting is fixed on the winding needle and the cathode, the anode and the separator are rolled into the cell as the winding needle rotates. The operation of the battery winding is relatively simple, and it can be completed quickly whether it is semi-automatic or fully automatic. The battery stacking process is highly complex, manual operation is time-consuming and laborious, and automation is difficult to industrialize due to equipment problems. In addition, in terms of cell quality control, the winding type is easier to control, while the stacking type is more difficult to achieve good consistency due to cumbersome process steps. Regarding consumer batteries, more attention is paid to the improvement of efficiency than battery capacity and performance, so customers will have demand for winding technology. However, for dynamic lithium batteries, the stacking process can better take advantage of the advantages of large cells, and it has advantages over winding in safety, energy density, and process control. At the same time, the lamination process can better control the cell yield The most important thing is to pursue high energy density, so the stacking process is the best choice in the future. Both the battery stacking machine and the battery winding machine can prepare large-capacity square batteries. From the perspective of the vehicle development platform, the manufacturing of the square batteries in the future will match the vehicle chassis. If you look at energy density and cruising range alone, large modules and large batteries are indeed the trend, stacking is more dominant than winding, but the essence of market competition is price. If stacking equipment can significantly reduce costs, the profit will be higher than winding, replacement may be close at hand. 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) mail:tob.mae@tobmachine.com Skype:583432443@qq.com Wechat:TOB-005