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The electronic gadgets available now have become a part of day to day life. In fact, it has been so for many years now. These gadgets have made all tasks much easier and also less time consuming, and thus the work is done much faster. One such useful product used today is the electrician test equipment. The electrical test equipments can be be classified in to different categories depending on the...
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According to the operation mode, can be divided into:manual winding machine,semi automatic winding machine,automatic winding machine.Lithium battery winding machineand the capacitor winding machine, buyers usually according to classification of origin, mainly divided into: domestic winding machine, winding machine, South Korea Japan winding machine. Battery manufacturers generally small scale will...
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We have some large factories that we more or less have seen roller press. But surely everyone for roller press is not so understanding. Here I am for everyone detail our company’s flagship product roll press. Roller press and a series of broken classifier as a pre-grinding system with open cement mill roll grinding system consisting, in particular the process of using the system as a new and effic...
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For lithium ion batteries, the cathode materials that can be used should meet the characteristics of large reversible capacity, high potential and stability, non-toxic and low production cost. At present, lithium iron phosphate is the most common cathode material for lithium ion batteries. However, LiFePO4 has poor electrical conductivity and low lithium ion mobility. If LiFePO4 material is combin...
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Graphene Oxide is a two-dimensional planar nanomaterial composed of carbon atoms with a hexagonal honeycomb lattice，the c-c bond length is 0.141nm, the theoretical density is about 0.77mg/m2, and the thickness is only about the diameter of a carbon atom. Carbon atoms participate in hybridization in the way of sp2, and electrons can smoothly conduct between layers, so graphene conducts electricity ...
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The Electrode Coating Machine is the key equipment for the production of lithium battery electrode. Because it directly affects the subsequent rolling operation, and even affects the performance of the entire battery. At present, the mainly lithium battery electrode coating process is: scraper type, roll to roll transfer coating type and a slit extrusion type. General speaking, laboratory equ...
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The main components of lithium ion battery include cathode, anode, electrolyte, membrane, etc. The storage and release of lithium ion energy is realized in the form of REDOX reaction of electrode materials, and the cathode active material is the most critical core material of lithium ion battery. Professor GOODENOUGH, the father of lithium battery, has made a great contribution...
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Introduction: Polyvinylidene fluoride binder(PVDF) is currently the most commonly used oil binder in the lithium ion battery industry. It is a non-polar chain polymer binder. It is characterized by strong oxidation resistance, good thermal stability and easy dispersion. N-methylpyrrolidone (NMP) is required as a solvent. This solvent has a high volatilization temperature, has a certain environment...
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The lithium-air battery is a new type of high-capacity lithium-ion battery developed by the Japan Industrial Technology Research Institute and the Japan Society for the Promotion of Science (JSPS). The battery uses lithium metal as the negative electrode, oxygen in the air as the positive electrode, and the electrodes are separated by a solid electrolyte; the negative electrode uses an&n...
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Although high-voltage lithium battery materials are getting more and more attention, these high-voltage anode materials are still unable to achieve good results in practical production and application. The biggest limiting factor is that the electrochemical stability window of the carbonate-based electrolyte is low. When the battery voltage reaches about 4．5（vs．Li/Li＋）, the electrolyte begins to p...
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The battery separator plays a major role in lithium ion battery conduction lithium ions and isolation between the positive and negative electrode electronic contact. It is an important component to support the battery to complete the electrochemical process of charge and discharge. In the use of lithium batteries, when the battery overcharge or at higher temperatures, the separator ...
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The lithium-rich manganese-based (xLi[Li1/3-Mn2/3]O2; (1–x) LiMO2, M is a transition metal 0≤x≤1, and the structure is similar to LiCoO2) has a high discharge specific capacity. It is about twice the actual capacity of the cathode material currently used, and is therefore widely studied for lithium battery materials. In addition, since the material contains a large amount of Mn element, it is more...
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Lithium ion batteries have the advantages of large capacity, high specific energy, good cycle life and no memory effect. Lithium-ion batteries are developing rapidly, and their capacity, as the most critical performance indicator, has attracted researchers' attention. Correspondingly, lithium battery PACK is continuously developing towards large capacity, fast charging, long life and high safety, ...
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A good combination can not only improve cell utilization, but also control monomer consistency, which is the basis of achieving good discharge capacity and cycle stability. However, the dispersion degree of ac impedance of single battery capacity will be intensified, which will weaken the cycling performance and available capacity of battery. But how do you achieve good grouping of battery? Quanti...
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The appropriate battery charging system has an important influence on the discharge capacity of the battery. If the charging depth is shallow, the discharge capacity will be correspondingly reduced. If overcharged, the battery will affect the chemical active substances, causing irreversible damage. Reduce battery capacity and life. Therefore, it is necessary to select the appropriate charging rate...
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Lithium ion battery is a kind of energy storage device, currently the commonly used lithium ion battery according to the cathode material can be divided into iron phosphate lithium battery, ternary battery and manganese acid lithium battery. Take the lithium iron phosphate battery as an example: when discharging, the iron phosphate in the positive electrode and the lithium ion transferred from the...
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Electrode Preparation is a key part in the whole battery manufacturing process, the quality of electrode directly affects the next step. The battery slurry preparation is a non - Newtonian high viscosity fluid which is formed by mixing the active materials, binders, solvents and other powders evenly. This slurry requires a certain viscosity, good fluidity and a sufficiently small particle size. So...
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As the core product of replacing the fuel - powered vehicle, new energy vehicle has been accepted by more and more users. Similarly, as one of the components of new energy vehicles, power battery has a more and more promising market. As a high-tech enterprise in the field of lithium-ion battery and supercapacitor, TOB has always been committed to the development of the fuel cells, TOB New Energy c...
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When preparing the electrode of lithium ion battery, aluminum foil is used as the cathode current collector foil, while copper foil is used as the anode current collector foil. If a single smooth foil is used, it is recommended to apply the foil on the rough side to increase the bonding force between the current collector foil and the materials. There is no special requirement for the thickness of...
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The lithium battery electrode is a coating composed of particles. During the preparation of the electrode, a uniform wet slurry is applied to the metal current collector foil, and then the solvent in the dehumidification coating is removed by drying. Battery binder or dispersant as well as conductive agent such as carbon black are often added to the battery electrode slurry. Although the solid con...
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