Integrated Dry Electrode Production Line | Complete Equipment From Powder to Finished Electrode

The power battery, super capacitor and solid-state battery industries are increasingly demanding cost reduction, energy saving and streamlined production processes. Traditional wet electrode technology has gradually revealed obvious limitations. The wet process relies on NMP organic solvents and requires complicated drying and solvent recovery procedures, resulting in high energy consumption, high equipment investment, heavy environmental maintenance costs and large floor space, with limited cost performance for current small and medium batch and conventional mass production. To solve these industry pain points, Qingyan Electronics launches the integrated dry electrode production line. It covers the entire process including powder processing, dry mixing, hot-press film forming, current collector compounding and finished electrode winding. Adopting pure dry physical forming technology, the production line simplifies the manufacturing process and enables low-energy consumption and stable mass production of electrodes.

1. Product Overview

The integrated dry electrode production line is applicable to electrode preparation for super capacitors, lithium batteries and solid-state batteries, with distinct advantages over traditional wet coating processes. The production line eliminates redundant procedures and adopts a streamlined core process: powder batching — dry mixing — hot-press film forming — current collector compounding — inspection and winding. It requires no organic solvents or high-temperature drying equipment and realizes electrode fabrication through physical forming. Featuring high integration and compact procedures, the equipment effectively solves the problems of scattered workflows, complicated processes and high energy consumption in traditional production, meeting the conventional mass production requirements of energy storage electrodes.

2. Core Process Flow

1. Powder Batching and Dry MixingThe equipment adapts to various positive and negative electrode powders and solid-state composite powder materials for energy storage. It supports closed automatic feeding and precise batching to reduce dust leakage and material waste. Through pure physical dry mixing without solvents, powders and binders are evenly blended to form a stable fibril structure, maintaining the basic performance of materials and meeting the process requirements of subsequent hot-press forming.

2. Constant-Temperature Hot-Press Film Forming (Core Procedure)Adopting mature constant-temperature and constant-pressure hot-press technology to replace traditional wet coating and drying processes. With stable temperature and pressure control, powders are compacted into uniform and regular films. This method avoids common defects of wet processes such as film cracking and residual drying stress, ensuring stable electrode forming quality.

3. Current Collector Compounding and FinishingDry films are bonded with current collectors through matched hot-press compounding, effectively reducing common defects including bubbles, wrinkles and delamination. Equipped with subsequent shaping, dimension inspection and appearance inspection procedures, the production line standardizes electrode size and appearance stability, steadily outputting qualified finished electrodes for conventional batch production.

3. Core Product Advantages

1. Solvent-Free Dry Process, Energy Saving and Lower Environmental PressureThe entire production requires no NMP or other organic solvents and needs no supporting drying or solvent recovery equipment. It simplifies system configuration, effectively reduces equipment investment, energy consumption and auxiliary material costs, and lowers subsequent environmental maintenance pressure, achieving an eco-friendly and cost-effective production mode.

2. Integrated Design and Streamlined WorkflowThe equipment integrates multiple functional modules including powder processing, mixing, hot-press forming, compounding and winding, replacing the traditional discrete unit equipment combination. Smooth procedure connection reduces material transfer loss and improves overall production efficiency to match conventional mass production rhythms.

3. Stable Forming Quality for Multiple Energy Storage DevicesThe dry physical forming process generates no drying stress accumulation and effectively avoids powder agglomeration. The finished electrodes feature stable thickness and areal density with good batch consistency, satisfying the conventional manufacturing standards of super capacitors, lithium batteries and solid-state batteries.

4. Standard Control System, Simple Operation and Easy MaintenanceEquipped with mature and standardized control modules, the equipment supports fixed parameter storage and standardized start-stop operation. With simple logic and convenient debugging, it requires minimal manual intervention and supports long-term stable repetitive production with low maintenance thresholds.

5. Wide Material Compatibility and High VersatilityIt is compatible with mainstream powder materials such as LFP, NCM, silicon-carbon and solid electrolytes, and supports electrode production for super capacitors, lithium batteries and solid-state batteries. It applies to laboratory trial production, pilot scale-up and factory mass production, suitable for new construction and upgrading projects of various energy storage production lines.

4. Application Scenarios

1. Mass production of super capacitor energy storage electrodes and power-type energy storage pole pieces;2. Green manufacturing of high-density lithium battery positive and negative electrodes;3. Preparation and production of new electrodes for solid-state and semi-solid-state batteries;4. Dry process transformation and upgrading of traditional wet production lines for energy storage factories;5. Process research, pilot testing and mass production supporting for new energy storage electrode technologies.

5. Product Value Summary

The integrated dry electrode production line features pure dry processing, high integration, low energy consumption and easy implementation. It simplifies the cumbersome procedures of traditional wet manufacturing and eliminates solvent treatment and high-temperature drying links, effectively reducing energy consumption and overall production costs. Supported by mature dry mixing, hot-press forming and compounding technologies, the equipment runs stably and supports a wide range of materials. It meets the conventional mass production demands of super capacitor, lithium battery and solid-state battery electrodes, serving as a practical and cost-effective complete solution for green, simplified and low-cost dry electrode manufacturing.