Audited Supplier
Relevant Standard Testing Requirements
Safety Test for Single Batteries: The Squeezing Test shall be carried out in accordance with the following steps:
1.1 Charge the single battery according to the method specified in 6.1.3, and conduct the test under the following conditions:
A) Squeezing direction: Squeeze in the direction perpendicular to the battery plate (refer to Figure 1).
B) Squeezing plate form: A semi-cylinder with a radius of 75mm, and the length (L) of the semi-cylinder is greater than the size of the battery being squeezed.
C) Squeezing speed: (5 ± 1) mm/s.
D) Squeezing degree: Stop squeezing when the voltage reaches 0V, or the deformation amount reaches 30%, or the squeezing force reaches 200kN; observe for 1 hour.
Safety Test for Battery Modules: The Squeezing Test shall be carried out in accordance with the following steps:
1.1 Charge the single batteries according to the method specified in 6.1.4, and conduct the test under the following conditions:
A) The squeezing direction shall be the same as the direction in which the battery module is most likely to be squeezed in the overall vehicle layout. If the most vulnerable squeezing direction cannot be determined, apply pressure perpendicular to the arrangement direction of the single batteries (as shown in Figure 3 for reference).
B) The form of the squeezing plate: A semi-cylinder with a radius of 75mm, and the length of the semi-cylinder is greater than the size of the battery being squeezed but not exceeding 1m.
C) The squeezing speed: (5 ± 1) mm/s.
D) The squeezing degree: When the deformation of the battery module reaches 30%, or the squeezing force reaches the larger value between 1000 times the weight of the battery module and the value listed in Table 2, maintain this state for 10 minutes, and then observe for 1 hour.
Main Parameters
| Name | Power battery extrusion needle test machine | |
| Model | MBS-JY5 T | MBS-JY20 T |
| Pressure | 5 T | 20 T |
| Force accuracy | ±1% | |
| Organization | Vertical | |
| Squeezing method | From south to north | |
| Box | The vertical box structure is separated from the controller part. | |
| Test space W*H*D mm | 600*600*600 | 1000*800*600 |
| Squeezing stroke | 0~600mm | |
| Control method | Plc touch screen + computer remote control | |
| Squeezing speed | 1~10mm/s | |
| Squeezing speed accuracy | ±0.1/min |
| Power supply voltage | AC380V 50 Hz |
| Squeeze head | Radius 75mm |
| Driving mode | Servo hydraulic |
| Data acquisition method | Independent remote acquisition and isolation, multiple voltage, temperature and current acquisition channels. Ensure that the data is error-free acquisition frequency of 100Hz. |
| Security apparatus | Video surveillance system, safety explosion-proof system, smoke discharge system, smoke alarm device, explosion-proof lighting device, etc. |
| Safety alarm | Leakage protection, overheating protection, overvoltage, overload, overcurrent protection, abnormal sound and light alarm, smoke alarm light, etc. |
| Standard configuration | A set of extrusion host, computer, extrusion head, a set of fixture, a set of camera monitoring system, fire extinguishing system |
| The number of monomers in contact with the extrusion surface | Squeezing force/kN |
| 1 | 200 |
| 2~5 | 100Xm |
| > 5 | 500 |
