Project Description

lithium batteries crush test equipment

Lithium Ion Battery Test Equipment | Lithium Ion Cell Crush Tester China Supplier

Lithium-ion Cell Crush Test Equipment is intended to determine the safety and reliability of cells after being crushed and deformed in the test chamber. Testing can acquire accurate data, including crushing force, cell voltage in change, temperature variation, cell deformation etc., to assess the cell’s quality and security performance.

The test cabinet is composed of an interior case, middle spacer layer and outer case. The internal compartment is made of precision stainless steel with seamless welding, 1/3 area covered with Teflon tapes with high-temperature resistance and inflaming retarding properties.

The outer case is made up of cold-rolled steel sheets and coated with baking varnish. It is easy to be cleaned and replaced after a test each time. The medium layer plays a role in buffering and insulation, which can effectively relieve pressure on the outer case and interrupt temperature transfer when burning the test sample.

In order to make sure our battery crush tester has excellent performance on force transmission and control, we adopt Japanese Servo motor matching with Servo drive, through ball screws to apply force to the specimen, achieving accurate force application and management.

Test Standards

IEC62133-2-2017, UN38.3, GB 31241-2014, UL 1642, etc.

Main Technical Specifications

Model AT-L5001
Force Applied Range 0 ~ 20 kN
Crush Speed 1.5 cm / s, the speed range is 0.01 ~ 900 mm / min adjustable (0.01 ~ 1.5 cm / second)
Drive Method Servo motor and driver
Crush Travel 0 ~ 300 mm
Test Space More than 300 × 300 × 300 mm (W x D x H)
Force Accuracy +/- 0.5%
Crush Retention Time 0 ~ 9,999 Sec adjustable
Control Mode Professional test software controlled on the computer
Battery Crush Test Conditions During the test, as long as any one of the following conditions is met (whichever comes sooner), the equipment relieves pressure and completes the crush test:

1. Applied Crushing force up to (13 ± 0.78) kN

2. The voltage of battery drops by at least 1/3 or 100 mV

3. The cell is deformed by 1/10 or 50% of its original thickness.

Test Software Features a)

Owns 1 channel of voltage acquisition

Voltage acquisition resolution: 5 mV

Voltage acquisition range: 0 ~ 10 V

b) The test software with real-time monitoring of battery voltage changes, the force applied to battery and deformation of the test piece.

c) Battery temperature acquisition function is optional with additional cost.

Test Chamber Structure The test chamber is separated from the control box.

The test chamber door can slide up and down and with door lock.

The test area has 2 wire holes, a lighting lamp, an exhaust fan, and a pressure relief port.

Crush head’s size: crush plate of 15 cm in diameter.

Lithium Ion Cell Crush Tester Features

  • The Servo motor and drive system enhance the control accuracy.
  • A particular pressure relief port at the back of the chamber is available if the battery explodes and causes damage to the machine.
  • Auto-induction door lock supports auto-off during the test.
  • The viewing window is constructed of 2-layer explosion-proof materials to withstand impacts.
  • Special test software makes the test operation more convenient.
  • The test can be conducted by choosing only one variable from Loading Force, deformation and voltage drop as the test condition. Choosing arbitrarily combined 2 or 3 variables as test conditions are also feasible. Pressure is released once any one condition is reached during the test.
  • As many as 7 various curves can be displayed containing voltage, temperature, load force, deformation, etc.
  • Test results can be stored, shared, exported to Microsoft Word for further editing.
  • Fitted with the universal castors and anchor feet at the bottom of the test equipment.

How to Do the Lithium-Ion Cell Crush Test

1. Check test instruments and ensure specimens are in place.

2. Put the cell between 2 flat surfaces in the test chamber. ( Prismatic or pouch cells shall be crushed by exerting the force to this widest side. Button/coin cells shall be crushed by exerting force on its flat surfaces. For cylindrical cells, the crushing force shall be applied perpendicular to the longitudinal axis. Each test cell only allows being subjected to one crush. The specimen should be observed for 6 hours after the test. The test shall be carried out using test samples that have not previously been subjected to other experiments).

3. Start the machine to empower the flat surfaces to exert gradual force with a speed of approx. 1.5 cm / s at the first point of contact. The crush is to be continued until the first of below three conditions below is attained:

A) Crushing force up to (13±0.78) kN.

B) The voltage of cell drops by at least 1/3 or 100mV(based on UN38.3 test standard).

C) The cell is deformed by 1/10 or 50%(based on UN38.3 test standard) of its original thickness.

4. The pressure should be released once it satisfies any one of the above 3 options. Cells meet the requirements if their external temperature does not exceed 170℃ and no disassembly, and no fire during the test and within 6 hours after the test.

The above is just for reference. Please strictly follow the procedure of the applied standard to carry out the test when you get this testing machine.

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Please feel free to contact us for more details on the product, price, lead time, payment terms, shipment methods, etc. Amadetech sales specialists will respond within one working day.

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