On March 31, 2026, the national standard GB/T 47292.4-2026 "lithium ion battery production quality management Part 4: battery pack process control and finished product testing" was officially released and will be implemented from April 1, 2027.. The drafting unit of this standard covers the leading enterprises in the industrial chain such as Ningde era, Sunwoda, Huawei, Sinochem, Guoxuan Gaoke, and Yiwei lianneng. Its authority and industry influence are self-evident..

This standard specifies the general rules, qualification rate, comprehensive efficiency of equipment, anti-stay and tracing, technical cleanliness, electrostatic discharge protection, pre-processing of battery cells, laser welding, product attachment, battery pack processing, battery unit grouping, module loading, structural connection, electrical connection, finished product testing and other full process requirements, suitable for power type, energy storage type and consumption type lithium ion battery pack production enterprises.

this means that the quality management of PACK production line will move from "enterprise internal control" to "standard constraint". In the past, the production line management of many small and medium-sized PACK factories relied on the experience of the master and the temporary rectification of customer audit, and lacked a systematic process control system. After the implementation of the new national standard, there are clear reference standards for how to calculate the qualified rate, how to measure the comprehensive efficiency of equipment, to what extent the anti-freeze design is achieved, and how long the tracing information is retained.

This is a good time for device manufacturers to re-evaluate PACK suppliers. A pragmatic judgment standard is: can the other party clearly explain what is the qualified rate of laser welding process, which level can the traceability system be accurate to, and what is the control process of electrostatic discharge protection? Suppliers who can give specific data and management documents are usually more trustworthy than those who only say "we have ISO certification.

Dongguan Juneng New Energy Technology the company is equipped with full-automatic laser welding equipment and AI visual inspection system in the manufacturing base, covering cell key processes such as feeding, gluing inspection, welding quality inspection, etc, upload all process data to the MES system for tracing the entire process. The incoming inspection process performs full inspection and capacity separation for cell, and the capacity deviation is controlled within 1%.