Test Standard: LV124

This test shall be carried out in accordance with DIN EN 60068-2-60 Method 4 with the following parameters:

Test Method: LV124

Heat chamber：ambient~+150℃, the general test requirement is +70℃

Cool chamber：0℃ salt water

The EV battery performs cold and heat shocks between the hot room and cold room.

Test Standard: LV124

This test shall be carried out in accordance with ISO 20653 with the following parameters:

Test Standard: LV124

Test Standard: LV124

This test shall be carried out in accordance with ISO 20653 with the following parameters:

Test Standard: LV124

This test shall be carried out in accordance with ISO 20653 with the following parameters:

Test Standard: GB/T 31467.3-2015

A) The test specimen is a battery pack or system.

B) At room temperature, the test specimen is connected to the wiring harness of the whole vehicle in the actual vehicle assembly state, and then placed in the 3.5% NACL solution (mass fraction, seawater composition at room temperature) for 2h in the actual vehicle assembly direction. The water must be deep enough to submerge the test specimen

Test Standard: IEC 60068-2-52

1. The sample should be subjected to visual inspection, electrical and mechanical inspection in accordance with the relevant regulations before testing.

2. The relevant specifications should expatiate the procedures before cleaning the sample, and should state whether to remove the temporary protective layer.

3. Place the test piece in a salt spray cabinet and keep it for 2 hours under the test conditions of 15~35°C temperature and 5% salt spray concentration.

4. After spraying, move the test specimen into a humidity cabinet with 40℃ and 93% relative humidity rapidly (try to avoid the loss of salt water during moving), and perform humidity storage according to the specified residence time.

5. Repeat steps (3) and (4) of the program according to the specified number of cycles.

6. The relevant specifications should state whether to clean the specimen after the test. If it needs to be cleaned, place the test piece under the faucet for 5 minutes and wash it with distilled water or mineral water. Then shake it with bare hands or use a blower to dehydrate. Dry for 1 hour at a temperature of 55±2℃, and the water used for cleaning should not be higher than 35℃.

7. Place the test specimen under standard atmospheric conditions (approximately 1-2 hours), restore it to its original state. However, visual, electrical and mechanical inspections must be checked out before and after the restoration.

Test Standard: LV124

ü Damp heat, cyclic

ü Damp heat, cyclic (with frost)

ü Damp heat, steady state

Severity 1

This test shall be carried out in accordance with DIN EN 60068-2-78 with the following parameters.

Severity 2

This test shall be carried out in accordance with DIN EN 60068-2-78 with the following parameters:

Prior to the execution of this service life test, a check shall be condected to ascertain whether the high test acceleration using the test parameters 65℃ and 93%RH. Exceeds the physical limits of the materials used in the components (eg. Hydrolysis of plastics). Where applicable, the contractor and client shall agree to changes in the test temperature and test humidity (eg. To +55℃ and 93%RH) while increasing the test duration as per the Lawson model such that the physical limits of the materials used are not exceeded during the test. The overall severity of the testing shall, however, remain unchanged. The test humidity shall not exceed the level of 93% RH.

[Deviating test sequence for components with reduced performance at high temperatures]

For components with reduced performance (e.g. reduction of backlight of LCD displays at high temperatures staring at T (op, max) (＜65℃) the test shall not - deviating from table 73: Test oarameters K-14 Damp heat, steady state- severity 2 - be carried out at a constant test temperature of 65℃, but with the following parameters (see table 73)

Thermal Test

This test is performed to characterize cell responses to high-temperature environment. 

a) Adjust the SOC of the cell to 100% for BEV application, and to 80% for HEV application. 

b) The cell, stabilized at room temperature, shall be placed in a gravity or circulating air-convection oven. The oven temperature shall be raised at a rate of 5K/min to a temperature of 130℃±2K. The cell shall remain at this temperature for 30 min before the test is discontinued. 

Note-If necessary, to prevent deformation, the cell may be maintained during the test in a manner that does not violate the test purpose. The manner to prevent deformation should be representative of cells inside battery systems and battery packs.