The laboratory testing and verification system is the ultimate defense line to ensure the performance standards, safety and reliability of lithium-ion battery products. Through a systematic testing process, it conducts comprehensive electrical and safety performance evaluations of newly developed and mass-produced products.
Its standard workflow includes the following three core stages:
Test plan design and sample preparation: Based on product design standards, customer requirements, and international regulations (such as UL, IEC, GB), develop a detailed test plan that specifies each test item (such as cycle life, rate discharge, high temperature storage, overcharge/overdischarge, needle puncture, heavy impact, etc.), test conditions, and qualification standards. Randomly select representative cells or battery packs from batch products, perform numbering, initial capacity measurement (Formation), and record basic parameters to ensure consistent sample status.
Classification execution and data collection: Testers allocate samples to various professional equipment for testing.
Electrical performance testing: Using a charge discharge testing system, internal resistance meter, temperature chamber, etc., accurately measure its capacity, energy efficiency, rate characteristics, self discharge rate, and performance at different temperatures.
Safety performance testing: In the explosion-proof box, specialized equipment such as needle testing machine, extrusion testing machine, overcharge and over discharge equipment is used for abuse testing, simulating extreme abnormal situations, and recording the battery's reaction (such as whether it catches fire, explodes, leaks) through cameras and voltage temperature sensors throughout the process.
All test data of the devices are automatically collected and uploaded to the database system.
Data analysis and reporting loop: Engineers analyze the massive data collected, compare the results with standards and initial designs, and issue authoritative testing reports. The qualified conclusion provides endorsement for product mass production and market launch; And the non-conforming items immediately trigger the traceability process, feedback the problem to the R&D or production process for root cause analysis and process improvement, forming a closed-loop quality management that drives continuous product optimization.
The core value of this system lies in its role not only as a "judge" of whether a product meets specifications, but also as an "engine" for data-driven R&D and manufacturing iterations, providing the most solid scientific basis and guarantee for the excellent performance, ultra-high safety, and ultimate customer trust of the product.