The news of electric cars catching fire and exploding has made everyone wary of battery safety. The key to determining the safety of these "mobile bombs" is hidden in a few inconspicuous parts on the top cover of the battery.
Precision Industrial Technology new energy power lithium battery top coverHelium Detection Breath Blast Comprehensive Tester -- The name sounds complicated, but the problem it's trying to solve is extraordinarily straightforward:How to make sure every battery doesn't become a time bomb The
I. The "life and death line" of battery safety
Top cover: the weakest link in the battery
The top cover of the power lithium battery carries the safety mission of the entire battery system. There are two key components here that determine the life and death of the battery:
Pole Seal: If the seals fail, electrolyte leaks can cause short circuits, and external vapor intrusion can trigger thermal runaway. Any tiny leak can turn a car into an instant fireball.
Rupture Disc FunctionWhen the pressure inside the battery rises abnormally, the rupture disc must break at the exact pressure point to relieve the pressure. If it breaks too early, the battery will be scrapped; if it breaks too late, the whole car will explode.
The performance testing of these two components is directly related to the safety of tens of thousands of lives.
The fatal flaws of traditional testing
There are inescapable problems with the way testing has been done in the past:
Separation of tests, overlapping risks. Helium detection and burst testing require different equipment, and multiple clamping increases the risk of error accumulation.
Inefficient and costly. Single-function equipment can not meet the inspection needs of mass production, which becomes the bottleneck of the production line.
Unharmonized standards and variable quality. It is difficult to harmonize the testing standards of different devices, which leads to unstable product quality.
Second, integrated detection: once to solve all security risks
A technological breakthrough in 4-in-1
Precision Engineering Helium Detection Breath Blast Comprehensive TesterIntegration of four key inspection functions into one device realizes a technological breakthrough in battery safety inspection.
Precision Engineering provided helium breathalyzer for a famous brand of power battery.
1. Helium detection function: detects leaks undetectable to the naked eye
Utilizing helium mass spectrometry leak detection technology, leak pathways 10,000 times thinner than a strand of hair can be detected.Helium is used as a tracer gas to detect even small leaks at the level of 3 x 10-13 Pa.m3/ s. The helium is used as a tracer gas for the detection of small leaks.
This precision ensures complete sealing inside the batteryThe possibility of electrolyte leakage and external water vapor intrusion is fundamentally eliminated.
2. Breath tests: verifying long-term reliability
The internal pressure of the battery changes periodically during the charging and discharging process, and the rupture disc must remain stable over time in this "breathing" state.
Test equipment simulates thousands of pressure cycles to verify the fatigue life of rupture discs under repeated deformation.Only batteries that have passed this severe aging test can ensure long-term reliability in actual use.
3. Burst function: precise determination of safety thresholds
Accurately measures the burst pressure by gradually increasing the internal pressure until the rupture disc ruptures.This value must be kept within strict limits:
- The pressure is too low:False detonation during normal use, battery failure
- The pressure is too high:Failure to detonate at the time of danger triggers an explosion
The performance of each rupture disc must be precisely controlled on this life and death line.
4. Pressure-resistant function: verifying work stability
The rupture disc is held at a set pressure for a certain period of time without rupturing, verifying the stability of the rupture disc within the normal operating pressure range.This ensures that the battery is safe and reliable in everyday use.
Technical advantages of customized solutions
| Technical characteristics | Traditional Programs | integrated solution | performance enhancement |
| Detection efficiency | Multiple machines, multiple clamping | One clamping, full inspection | Efficiency gains 300% |
| Detection accuracy | Accumulation of errors with varying standards | Harmonized standards, controlled accuracy | Improved accuracy 50% |
| equipment cost | Multiple equipment inputs | Single integrated device | Cost Reduction 40% |
| operating complexity | Multiple collaborators and complex processes | automatic operation | Manpower savings 60% |
III. Practical application: perfect transformation from laboratory to production line
Solving real production pain points
Mold switching technology: The equipment is equipped with special molds for left-right switching of poles and rupture discs, realizing quick switching of different inspection items and avoiding the waste of time by repeated clamping.
Parameter customization function: Users can customize key parameters such as test pressure, holding time, cycle times, etc. according to the technical requirements of different battery models, realizing truly flexible production.
Data Traceability System: Each cell's inspection data is completely recorded, forming a quality traceability chain and providing a scientific basis for subsequent quality analysis and process improvement.
Depth of industry value
With the explosive growth of the new energy vehicle market, the safety requirements of power batteries are becoming more and more stringent.Precision EngineeringHelium Detection Breath Blast Comprehensive TesterThe value of the application is reflected in:
Safety and security: Ensure the safety and reliability of each battery from the source, providing a solid guarantee for the safety of consumers' lives.
Productivity Improvement: Integrated inspection significantly improves the inspection efficiency of the production line and eases the bottleneck pressure of capacity expansion.
Harmonization of quality standards: Uniform testing standards ensure the consistency of product quality and enhance brand credibility.
Cost control optimization: Equipment integration reduces investment costs and operating costs and enhances the market competitiveness of enterprises.
IV. Technology Outlook: Intelligent Evolution of Security Detection
The way forward
Continuous improvement of detection accuracy: With advances in sensor technology, future detection accuracy will reach even higher levels, enabling the detection of more subtle safety hazards.
Deep Integration of Artificial Intelligence: Analyze large amounts of inspection data through AI algorithms to achieve intelligent management of fault prediction and quality optimization.
Breaking the limit of detection speed: Further increase in automation will enable faster inspection speeds and meet the demands of mass production.
Industry Standard Leader
Precision EngineeringWith the profound accumulation in the field of airtightness testing, we not only provide technologically leading testing equipment, but more importantly, establish new safety testing standards for the whole industry.
Our equipment has been in stable operation in the production lines of many well-known battery manufacturers, providing a reliable guarantee for the safety of millions of batteries.Every successful inspection means one less moving safety hazard on the road.
Summarize
The future of new energy vehicles is built on the absolute safety of every battery The
If you are a new energy battery manufacturer, or have higher requirements for battery safety testing.Precision EngineeringOur professional team will provide you with the most cutting-edge technical solutions.
Let technological advances ensure safety and confidence on every trip.
Original Statement: this paper was written byShenzhen Jingchenggongke Technology Co., Ltd.Written by the technical team, reproduced with attribution.Data sources:Precision Engineering internal test data and customer cases.
