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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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Sep , 07 2023
During the production process of batteries, there may be fine dust particles and impurities in the air, as well as dust and burrs on the positive and negative electrodes. These factors can easily cause physical contact inside the battery and induce short circuits, greatly affecting its performance. In severe cases, it may even cause the battery cell to fail to charge, resulting in a "dead" battery...
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Oct , 26 2023
In the manufacturing process of lithium-ion batteries, there are three crucial items that must be strictly controlled:One is dust.The second is metal particles.The third is moisture; Dust and metal particles that are not properly controlled can directly lead to safety accidents such as internal short circuits, fires, and combustion within the battery; If moisture is not effectively controlled, it ...
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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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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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Oct , 17 2024
The coin cell punching machine is a specialized piece of equipment designed for the precise and efficient manufacturing of coin cell batteries. These tiny, yet powerful, batteries are ubiquitous in modern electronics, powering devices ranging from watches and calculators to hearing aids and remote controls. The process of creating these batteries involves multiple steps, one of whic...
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Mar , 27 2025
Introduction In the intricate process of battery manufacturing, thermal treatment plays a decisive role in defining the structural, electrochemical, and mechanical properties of materials. Muffle furnaces and hightemperature furnaces are indispensable tools for processes such as electrode sintering, solidstate electrolyte synthesis, and precursor calcination. 1. Fundamental Differences Between Muf...
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Apr , 17 2025
1、The definition and essence of lithium battery separators The lithium battery separator is a thin film material with a microporous structure, located between the positive and negative electrodes of the lithium battery. Its core function is to physically isolate the positive and negative electrodes to prevent direct contact between the two electrodes and cause a short circuit. At the same time, it...
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