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    Home > Active Ingredient News > Drugs Articles > Test method for peeling properties of coated separators for lithium-ion batteries

    Test method for peeling properties of coated separators for lithium-ion batteries

    • Last Update: 2022-08-20
    • Source: Internet
    • Author: User
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    Lithium-ion battery coating separator peeling test machine Lithium-ion battery separator is one of the core key materials, and is a key component that restricts battery safety and cycle life
    .

    The main function of the separator is to separate the positive and negative electrode materials of the battery to prevent short circuit due to contact between the two electrodes, while the electrolyte ions pass through it
    .

    On the premise that the thickness is as thin as possible, it is necessary to ensure a certain physical and mechanical strength, including tensile strength, puncture strength, peel strength,
    etc.

     Definition of peel strength: The load per unit width that can withstand when the bonded sample is separated under the specified peeling conditions
    .

    Product model: WDB-01 Product use: With lithium ion battery polyethylene (PE) and other separators as the matrix, the uniform coating thickness on the surface is 1~2μm mixed with nano-alumina powder and gelling agent slurry, which can be used to make Inorganic composite ceramic coating lithium-ion battery separator
    .

    Ceramic-coated separators can effectively improve the thermal safety of lithium-ion batteries, and at the same time have good wettability and liquid retention properties for electrolytes, which can effectively improve the capacity retention performance of lithium-ion batteries
    .

    The quality of the coating is directly related to the performance of the battery's electrical performance.
    The peel strength test can not only effectively identify the coating quality, display the slurry coating strength, uniformity and other indicators, but also guide the adjustment of the coating production line, so that the The finished product is more uniform and reliable
    .
    It can do mechanical properties tests such as longitudinal, transverse tensile, tensile, and tear properties of various papers, films, rubber, plastics, textiles, waterproof materials, non-woven fabrics, metal wires, metal foils, and metal sheets.
    , self-adhesive and other adhesive materials peeling, splitting, shear strength test, elongation at break test, heat sealing tensile, tearing, strength test, etc.
    ! Product features: 1.
    Liquid crystal display: 5.
    7-inch large liquid crystal display, the experimental results and process are clearly visible, the operation is simple, and the precision is higher! 2.
    Closed-loop microcomputer control: small error and high precision! 3.
    The stepless speed regulation can set the accuracy arbitrarily in the range of 1-500 mm/min! 4.
    Wider range: 50N, 100N can be selected arbitrarily! 5.
    Test curve display: the test process can display the curve (force value, displacement), the result analysis is more scientific, the effect is better, and the accuracy is higher! 6.
    Connect to a micro-printer: The test date and test results can be printed directly and in time! 7.
    Peak hold: It has the function of holding the test force value, which makes it more convenient to view the test results! 8.
    Overload protection: When the test exceeds the range of the testing machine, the testing machine automatically starts the overload protection to avoid machine injury! 9.
    Automatic shutdown: automatic shutdown when the test is broken, and maintains the peak force, which is convenient for viewing the experimental results! 10.
    The test speed is continuously adjustable: during the experiment, the test speed can be adjusted arbitrarily! Technical parameters: · Load range: 0-100N (optional configuration 50N 100N) · Accuracy: Class 1 · Resolution: 0.
    01N · Loading speed: 0-500mm/min) Stepless speed regulation · Sample width: ≤ 30mm · Pull Extension stroke: 600mm Power: 40w Power: 220V 50Hz Dimensions: 530*266*1450mm Net weight: 60Kg Standard configuration: GB/T2792 host + 1 set of fixture + 1 pressing roller (optional) + 1 experimental board Right (optional) label: Lithium-ion battery coating separator peeling test machine
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