RFP Electrode Calendering Machine

Battery electrode calendering is a crucial step in the manufacturing of lithium-ion batteries. It involves compressing and densifying the coated electrode materials (such as cathodes and anodes) to achieve a uniform thickness, improve material density, and enhance electrochemical performance. This process helps ensure optimal contact between active materials and current collectors, leading to better battery efficiency and lifespan.
Battery-NY is seeking equipment to provide a flexible and modular anode and cathode electrode calendering capability within a single machine. The electrode sheet, wound on a reel from the previous coating process, is unwound and passed through a set of calendering rolls that apply pressure to compress the coated material. The roller gap, speed, and pressure are precisely controlled to achieve the desired thickness and density. The calendered electrode is then rewound onto a reel before being fed to the next process (slitting or cell assembly). The modular design will permit easy upgrades in the future as new technologies and processes are developed.
The machine will include a suite of quality control equipment (web alignment, thickness measurement, defect detection, etc.) and will log key process and quality data to a data storage system via an IT interface. Incoming materials are scanned, and outgoing materials receive a unique identifier for tracking and tracing purposes. The main requirements are summarized in the following sections.
The machine must be fully installed and operational, with the UAT (User Acceptance Test) completed on or before the date specified in Section 1. This will facilitate the seamless completion of all upstream and downstream process activities within the planned timeframe, ensuring the provision of necessary materials for subsequent activities. For instance, calendered electrodes are required to test the slitting machine and cell assembly lines. Any project delays must be avoided, as they will impact downstream processes and, ultimately, the final project completion date.
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