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Semiautomatic EIS Test Machine for Lithium Pouch Cells – Advanced Cell Classifier is designed for a quality test of cells before assembly into modules. It allows testing of multiple test sequences while the lithium battery cells are placed on the fixture on the tray The cells inserted by hand and then tested automatically. The appropriate test equipment for multiple tests can be installed in this machine. The high-end software of our end-of-line test machine can be operated and controlled from the main HMI screen. All individual test profiles can be set up and configured to allow multiple test profiles in one sequence.
Through close collaboration and a deep understanding of our customers’ needs, we deliver exactly what they expect: exceptional quality, intuitive usability, and tailored, personalized service. Our Premium Finishing Line Equipment is designed with cutting-edge technology to simplify operations and handling, ensuring a seamless experience. Engineered to exceed expectations, this high-tech solution is crafted to meet the highest standards and leave no detail overlooked.
CMWTEC offers complete solutions for battery production—ranging from stand-alone machines and fully automated lines to advanced testing equipment and smart handling systems. Our modular approach enables flexible configurations and seamless integration into existing processes. With the DataManager software, we also provide digital tools for process control, traceability, and production data management. From assembly to end-of-line testing, CMWTEC delivers efficient technology for the entire battery production workflow.
Exact & Precise
Tailored to meet the high-quality standards of original equipment manufacturers, our machines
guarantee precision and reliability.
Years of experience
With years of experience, we craft machines that perform flawlessly, empowering you to focus on what matters most—your production.
Worldwide ambitious
Manufactured in Germany and delivered worldwide, we ensure punctuality and consistency in every project.
Please contact us if you are interested in a machine from our machine portfolio. Or contact us if the machine you are looking for is not described on our website. Our sales team and our engineers will be happy to help you with the design for your specific requirements.
EIS stands for electrochemical impedance spectroscopy. The CMWTEC EIS test machine uses it as a quality test for lithium-ion pouch or prismatic cells before they are assembled into modules. It measures up to 32 impedance points simultaneously and predicts battery performance and lifetime in 1 second.
The operator places the cells on the fixture of the cell tray and pushes the tray into the test chamber. After the operator presses the start button, the test runs automatically. A scanner captures the QR code of each cell and assigns the test data to it, and all data are shown on the control panel and stored in the database. Multiple test profiles can be combined in one sequence, and the machine has a CAN bus and Ethernet interface.
Three pneumatically controlled gripping units contact the cell and distribute the pressure evenly. For pouch cells, the test unit recognises the different thicknesses of the pouch straps and checks the polarity, so incorrectly inserted cells are not tested and an alarm is issued. For prismatic cells, it recognises the position of the terminals to avoid too high or too low contact pressure.
The machine measures up to 32 impedance points simultaneously and predicts battery performance and lifetime in 1 second. Its compact design allows it to be set up in the production area or under laboratory conditions. It only needs a power connection and a pneumatic connection.
