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Jun , 17 2022
Advantages and Disadvantages Of Ternary Lithium Battery Many people say that the lithium iron phosphate battery should be fully charged, and the ternary lithium battery should be charged to more than 90%. The reason is that the voltage of the lithium battery will increase after it is fully charged, which will affect the activity of the electrolyte and positive and negative materials, resulting in ...
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Jun , 28 2022
The lithium-ion battery slurry coating process is a process in which a non-Newtonian fluid contacts, flows, and solidifies a solid substrate.Different from the contact between the solid state, the lithium battery slurry is sprayed from the coating head and coated on the copper foil and aluminum foil, and there will be dynamic changes in the liquid state, including adhesion, wetting, leveling, rebo...
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Jul , 07 2022
The principle of ultrasonic metal welding is a special method of using the mechanical vibration energy of ultrasonic frequency to connect the same metal or dissimilar metal. When the metal is ultrasonically welded, it neither transmits current to the workpiece nor applies a high temperature heat source to the workpiece, but under static pressure, the frame vibration energy is converted into fricti...
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Jul , 26 2022
In the production process of lithium batteries, the compaction density has a great influence on the battery performance.Generally speaking, the compaction density is closely related to the specific capacity, efficiency, internal resistance, and cycle performance of the battery.the greater the compaction density, the greater the degree of extrusion between the material particles, the smaller the po...
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Aug , 09 2022
SEI (Solid Electrolyte Interphase) is also a solid electrolyte interface membrane. When a lithium-ion battery is charged and discharged for the first time, a small amount of polar aprotic solvent in the electrolyte undergoes a reduction reaction after gaining some electrons, and combines with lithium ions to form an interface film with a thickness of about 100-120nm, which is SEI. SEI is usually f...
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Sep , 02 2022
In the production process of pouch cell battery, there are many factors that can lead to abnormal gas production, which can be divided into several categories: First, the film formation of the cell itself is unstable. In the subsequent cycle process, the SEI film on the surface of the negative electrode may fall off or become loose, and the SEI film(SEI Formation Machine) is reconstructed, accompa...
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Oct , 11 2022
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Oct , 11 2022
The negative electrode material is made into a negative electrode sheet by mixing, coating, rolling, shooting, and drying.Use a lithium sheet as the positive electrode, assemble it into a button battery for testing, and calculate the gram capacity of the material by testing the capacity of the button battery. Required materials and equipment; Positive powder Electrolyte LB-5275 Carbon black KS-6 A...
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Nov , 23 2022
There are several types of wrinkling of the lithium battery electrode sheets, the wavy edge of the lithium battery electrode, the wrinkle of the lithium battery electrode, and the wrinkling of the paint area. Of course, there are several degrees of wrinkling severity. Wrinkles in the coating area of the electrode will cause the surface of the bare cell to be uneven, and the stress conce...
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Feb , 20 2023
1. Energy density; Since the density of solid is higher than that of liquid, if the same volume of solid electrolyte is used to replace the lithium battery electrolyte, the weight of the battery will increase, resulting in a decrease in the energy density (wh/kg) of the battery calculated by weight. The energy density of subsequent solid-state batteries will be significantly improved due to the us...
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Apr , 11 2023
The micro-gravure coating method uses a gravure roll, the gravure roll surface is mounted on bearings, partially immersed in the feed pan, and the rotating shaft picks up the coating, After quantification by a flexible rigid scraper, the coating liquid is taken away by the reverse motion substrate to achieve uniform thin layer coating. The direction of rotation of the microgravure coating gravure ...
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May , 12 2023
During the mixing machine, transportation, and coating processes of the mixer, foreign objects such as dust or long flocs are mixed into the coating liquid or fall onto the wet coating surface,The surface tension of the coating at this location is affected by external forces, resulting in a change in intermolecular forces. The slurry undergoes a slight transfer, and after drying, a circular mark i...
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