Company Introduction:

China Energy Storage Technology (Wuhan) Co., Ltd., established in April 2022, is a wholly-owned Tier-3 subsidiary under the equipment manufacturing sector of China Energy Engineering Group. It is a high-tech enterprise focused on the research, development, production, and sales of electrochemical energy storage system products. The company is engaged in R&D and manufacturing of core products such as large-capacity energy storage battery systems, power battery systems, marine battery systems, and battery management systems. It provides integrated solutions including the development, design, manufacturing, operation, maintenance, and second-life recycling of electrochemical energy storage stations. As a representative enterprise of China Energy Group's strategic transformation, the company actively implements the “30·60” carbon goals and is committed to becoming a world-class power technology and equipment supplier, fulfilling its social responsibility and historical mission of “Empowering a Beautiful China, Building a Better World.”

Main Product: Energy Storage PACK Battery Module

Project Background:

With the rapid development of the new energy storage industry, there is a growing demand for automated assembly of liquid-cooled PACK modules and energy storage containers. Traditional manual assembly methods are inefficient, labor-intensive, and pose safety risks, thus requiring intelligent upgrades. China Energy Storage Technology (Wuhan) Co., Ltd. plans to build an automated assembly production line for energy storage containers, including automated PACK battery module production, automatic PACK transfer, a three-dimensional PACK storage warehouse, and automated PACK loading into containers.

Construction Scope:

Core Equipment

The racking system features 125 storage positions, each with a 2-ton load capacity. It is equipped with high-temperature resistant fireproof panels (temperature resistance ≥500℃) and temperature-smoke detection alarm systems to ensure storage safety.

The rail-guided dual-mast stacker crane supports a 2-ton payload, with travel speeds up to 100m/min, lifting speeds up to 40m/min, and positioning accuracy up to ±5mm, meeting high-efficiency and precision warehousing requirements.

The AGV transfer system uses fork-type AGVs with a 2-ton load capacity per unit. The system supports automatic charging and can seamlessly integrate with the MES system for intelligent scheduling.

The robotic auto-packing system utilizes industrial robots with a 700kg payload. It is equipped with 2D vision positioning, servo pushing mechanisms, and anti-drop devices to ensure precision and safety in the packing process.

Supporting Systems

The Warehouse Management System (WMS) enables full lifecycle management of materials, including inbound, outbound, inventory tracking, and data traceability.

The Manufacturing Execution System (MES) provides real-time monitoring of production cycle time and equipment status, as well as quality traceability and report analytics, improving production management efficiency.

The fire protection system includes temperature-smoke sensors for each storage position, and fire extinguishers mounted on the stacker crane’s load platform, forming a comprehensive safety shield.

The safety protection system features multiple safety measures such as safety light curtains, emergency stop buttons, mechanical limiters, and armored fireproof rolling shutters to ensure the safety of both personnel and equipment.

       Project Outcomes:

       The project employs AGVs to achieve fully automated transfer of PACK modules between the off-line testing process, automated warehouse, and auto-packaging stations. Automated storage is realized through a high-density AS/RS system, while robotic systems enable automatic loading of PACK modules into energy storage containers. A centralized control system (WCS), warehouse management system (WMS), and RCS ensure integrated logistics automation across the entire process. The MES system provides full production line information management.

       The overall automation rate of the line reaches ≥80%, with each process operating at a cycle time of 1 container per minute and a first-pass yield ≥99.8%.

       Equipment utilization rate is ≥98%, with individual machine failure rate ≤2%, and noise levels ≤70 dB (measured at a distance of 1 meter).

       Stacker crane positioning accuracy: ±3 mm; robotic positioning accuracy: ±0.1 mm.

       Full-process data traceability: PACK box information is bound to racks and containers, with real-time recording via the MES system.

       Flexible production: compatible with PACK boxes and containers of various sizes (up to 60 tons).