With the continuous promotion of the "carbon neutrality" development strategy, the green and intelligent development of manufacturing industry has become a trend.

In the lithium battery industry, intelligent manufacturing is mainly embodied in the two aspects of automation and informationization. Through the application of automation equipment, production efficiency can be greatly improved, labor costs can be reduced, and product quality can be ensured. The application of information technology can achieve real-time collection, analysis and processing of production data, providing data support for the optimization and decision-making of production process.

As a leading brand in the automation industry, ESTUN relies on its advantages in robotics and motion control core technology to provide complete intelligent solutions in the entire industrial chain of power and energy storage battery manufacturing, including battery cells, module assembly, and PACK. It helps the lithium battery industry to build lean, efficient, and flexible production lines, achieve rapid production, seize market opportunities, and promote digital transformation and intelligent upgrading. This helps enterprises improve their competitiveness and sustainable development capabilities.

The battery cell manufacturing process section

SCARA robot and die cutting machine motion control solution

The main processes of lithium battery cell manufacturing include film making, electrode winding, die cutting, cell winding and stacking. ESTUN provides 3-50kg load SCARA robots and complete motion control solutions for rewinding machines, die cutting machines, stacking machines and other equipment according to the needs of different process segments.

In the battery cell manufacturing section at the front end of the lithium battery process, ESTUN has created the ER3/ER6/ER10/ER20/ER50 series of SCARA robots to meet the production requirements of extra-large battery cells and high-speed production in the lithium battery industry. Among them, the custom-developed ER50-1200-SR heavy-load SCARA robot features a new structure and built-in wiring, offering stronger compatibility and a more convenient user experience. It can achieve high-speed and high-precision production in the process of polar detection, as well as has high production efficiency in processes such as large packaging feeding and pre-stacking of modules.

Topology diagram and process flow diagram of the operation and control plan for the die-cutting machine

Advantages of motion control solutions for die-cutting machines

1. High-efficiency production and optimized product quality: The TRIO controller achieves multi-axis synchronous control, with a punching efficiency of 200PPM and a production capacity of up to 40PPM.

2. High-precision control and stability guarantee: The mature tension control algorithm for take-up and pay-out ensures the precision of tension control and punching, with a synchronization accuracy of less than 0.01mm.

3. Easy upgrading and efficient inventory: Supports one-click type changing and soft expansion of axis numbers, no need to replace the controller during line upgrades, making inventory simpler.

4. Data interaction and powerful performance: The built-in reel diameter algorithm + motion control algorithm allows minimal swing amplitude of the pendulum. TCP/IP and CCD systems are used for data interaction, and visual closed-loop detection is introduced to ensure the precision of polar ear punching.

Module PACK process section

Large load robot and module PACK motion control solution

The lithium battery PACK production line generally includes several parts such as cell assembly line, packaging line, testing line, etc. In the assembly and welding process, robots can accurately position, weld and connect, improving the quality and efficiency of battery assembly.

ESTUN's brand-new lithium battery module/PACK intelligent production solution brings more reasonable, standardized manufacturing processes, scientific production cycles, advanced management, and smarter information technology-based complete line design. The entire implementation process is smoother, ensuring smooth delivery and production for customers.

In the process of lithium battery module assembly and PACK, heavy-load robots play a crucial role. These robots have strong load-bearing capabilities, stability, and precision, which can greatly improve production efficiency, reduce labor costs, and ensure the stability of product quality.

ESTUN has a full range of heavy-load robots from 220kg to 700kg, which are widely used in the industries of lithium batteries and metal processing. These robots have high speed, high precision, and strong anti-interference ability. They can be equipped with 45M long cables to adapt to various load applications. The application of heavy-load robots not only improves the automation level and reduces production costs of lithium battery production, but also provides a strong guarantee for the stability and safety of the production process.

Advantages of the motion control solution for module PACK

1. Standardized process for improved stability: Standardization concepts are applied in multiple aspects such as equipment, processes, cycles, project management, and information technology to achieve better stability.

2. Faster commissioning and production efficiency: Simple parameter settings and convenient commissioning provide higher production efficiency, improved safety, and maximum project duration.

3. Customized solutions for sustainable development: Compliant with Sicar standards and PACK process characteristics. Rooted in the industry, we provide customized solutions and services based on customer needs and market conditions to achieve sustainable development and value enhancement for enterprises.

4. Modular design for convenient commissioning and management: Structured and modular design facilitates customer management and commissioning, ensuring effective production.

Digital complete solution

Improving the precision and efficiency of the lithium battery industry

ESTUN's new generation industrial internet platform-E-Noesis, equipped with intelligent gateways, achieves millisecond-level data acquisition. Based on edge computing and cloud computing platforms, it provides real-time, systematic, and comprehensive presentation of equipment and production line production data. With flexible cloud deployment and local deployment options, it can quickly build a lightweight and lean management platform for enterprises.

1. Based on the rich digital knowledge model of the E-Noesis cloud platform, production data management and analysis can be achieved through online process quality management, production yield statistics and prediction, production warning, etc. This provides production process optimization, production management, prediction and other services for production management decision-makers, effectively ensuring the efficient and stable operation of the production line.

2. In the digital welding solution for new energy vehicle battery trays, a welding quality evaluation system customized and developed based on the E-Noesis platform continuously optimizes user welding processes, improves welding efficiency and quality.

Practicing the dual carbon strategy and driving green manufacturing. With its core robotic technology and advantages in the layout of the entire industry chain, ESTUN joins forces with it’s global lithium battery manufacturers to jointly build safe, energy-saving, efficient, and flexible production lines, empowering the rapid development of the lithium battery industry.