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May , 09 2020
What is the thickness of aluminum foil and copper foil for lithium battery? With the rapid development of lithium batteries in recent years, current collectors for lithium batteries have also developed rapidly. The positive electrode aluminum foil has been reduced from 16um to 14um, then reduced to 12um in previous years, and now many battery manufacturers have already mass-produced 10um aluminum ...
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May , 10 2020
What are the requirements for surface roughness of copper and aluminum foils for lithium batteries? For the lithium ion battery current collector, in addition to its thickness and weight having an influence on the battery, the surface performance of the current collector has a greater influence on the production and performance of the battery. Especially for the negative electrode current collecto...
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Feb , 16 2022
In the structure of lithium batteries, the separator is one of the key inner layer components. The performance of the lithium battery separator(celgard 2400,celgard 2325,celgard 2500)determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. The separator with excellent performance plays an important ...
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Apr , 26 2022
As a new generation of green high-energy rechargeable batteries, lithium-ion batteries have the characteristics of high voltage, high energy density, good cycle performance, small self-discharge, and no memory effect. The main way to improve the specific energy of lithium-ion batteries is to use higher-capacity positive and anode battery materials, thinner separator paper, thinner copper foil and ...
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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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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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Dec , 05 2023
The current collector is one of the indispensable components in lithium-ion batteries. It can not only carry active substances, but also collect and output the current generated by electrode active substances, which is beneficial for reducing the internal resistance of lithium-ion batteries, improving the Coulombic efficiency, cycle stability, and rate performance of batteries. At present, the pos...
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Apr , 25 2024
With the rapid development of technology, the application of lithium batteries in the energy field is becoming increasingly widespread. From smartphones and electric vehicles to large-scale energy storage systems, their efficient and environmentally friendly characteristics have been widely recognized. The lithium battery coating machine, as a key equipment in the lithium battery manufacturing pro...
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May , 09 2024
Coating process is a process based on the study of fluid properties, which involves coating one or more layers of liquid onto a substrate. The substrate is usually a flexible film or backing paper, and then the coated liquid coating is dried in an oven or cured to form a special functional film layer. The coating process of lithium-ion power battery electrodes has its own characteristics: d...
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Aug , 01 2024
Capacity is the primary attribute of a battery, and insufficient cell capacity is also a common problem encountered during sample and mass production. This article mainly analyzes the problem of no capacity in battery cells. What is the reason for insufficient battery capacity? When hearing that the battery cell capacity is insufficient, the first reaction should be to confirm whether there i...
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Mar , 21 2025
Introduction In the heart of every lithium-ion battery lies its electrodes—carefully engineered layers of active materials that determine energy density, cycle life, and safety. The process of transforming raw electrode slurries into uniform, defect-free coatings on metal foils relies on two unsung heroes: doctor blades and coating applicators. These precision tools are pivotal in defining the thi...
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