What is a battery acupuncture testing machine?
In recent years, with the rapid development of new energy vehicles and energy storage industries, battery safety has become the focus of public attention. As an important testing equipment, battery acupuncture testing machine frequently appears in hot topics. This article will introduce in detail the definition, function, working principle and related data of the battery acupuncture testing machine to help readers fully understand this equipment.
1. Definition of battery acupuncture testing machine
The battery acupuncture testing machine is a device specially used to test the safety performance of the battery. It mainly tests the reaction of the battery under extreme conditions by simulating the internal short circuit of the battery. This test can evaluate the risk of thermal runaway when the battery is physically damaged and is an indispensable part of battery safety testing.
2. The function of battery acupuncture testing machine
The main functions of the battery acupuncture testing machine include:
1.Assess battery safety: By simulating acupuncture to trigger an internal short circuit in the battery, test whether the battery will cause fire, explosion or other dangerous situations.
2.Optimize battery design: The test results can help battery manufacturers improve battery structures and materials and improve battery safety performance.
3.Meet industry standards: Battery safety standards in many countries and regions (such as GB 31241, UN 38.3, etc.) require batteries to pass acupuncture testing.
3. Working principle of battery acupuncture testing machine
The working principle of the battery acupuncture testing machine is relatively simple but highly accurate:
1.stationary battery: Fix the battery to be tested on the test platform to ensure its position is stable.
2.Acupuncture operation: The steel needle is driven by a mechanical device to penetrate the battery at a set speed and angle to simulate an internal short circuit.
3.Data collection: Monitor the temperature, voltage, current and other parameters of the battery in real time and record the battery's reaction.
4.Result analysis: Determine whether the battery passes the test based on the collected data.
4. Key parameters of battery acupuncture testing machine
The following are the key parameters and typical values of the battery acupuncture testing machine:
| parameters | Typical value | Description |
|---|---|---|
| Needle punching speed | 10-100mm/s | Control the speed at which the steel needle penetrates into the battery |
| Needle penetration depth | 5-20mm | The depth of penetration of the steel needle into the battery |
| Steel needle diameter | 3-8mm | Thickness of steel needle used to simulate internal short circuit |
| Test temperature range | -20°C to 60°C | Simulate test conditions at different ambient temperatures |
5. Application fields of battery acupuncture testing machine
Battery acupuncture testing machines are widely used in the following fields:
1.New energy vehicles: The power batteries of electric vehicles must pass strict acupuncture tests to ensure vehicle safety.
2.energy storage system: Batteries in large-scale energy storage power stations also need to pass pinprick tests to prevent thermal runaway and fires.
3.consumer electronics: Batteries for mobile phones, laptops and other devices also need to meet safety standards.
6. The relationship between recent hot topics and battery acupuncture testing machines
In the past 10 days, the following hot topics have been closely related to battery acupuncture testing machines:
| hot topics | Related content |
|---|---|
| Fire incident involving a certain brand of electric vehicle | Public questions battery safety and calls for strengthening needle stick testing |
| New solid-state battery released | The manufacturer announced that its solid-state battery passed the pinprick test, attracting industry attention |
| New national battery safety regulations | New regulations require all power batteries to pass pinprick testing |
7. Future development trends of battery acupuncture testing machines
With the advancement of battery technology and the improvement of safety requirements, battery acupuncture testing machines will show the following development trends:
1.Intelligent: Introduce AI technology to realize the automation of the testing process and the intelligence of data analysis.
2.High precision: Improve data collection accuracy and more accurately evaluate battery safety performance.
3.Multiple scene simulation: Develop more test modes to simulate battery short circuit conditions in different environments.
8. Conclusion
The battery acupuncture testing machine is an important tool to ensure battery safety, and its test results directly affect the market access and user safety of battery products. With the vigorous development of new energy vehicles and energy storage industries, the technology and standards of battery acupuncture testing machines will continue to be improved to protect the safety of the industry.
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