Keyword search: battery plant ,  lithium battery factory ,  power bank works ,  lifepo4 battery mill ,  Pallet Trucks LiFePO4 Battery,  LiFePO4 Pallet Trucks Battery,  Lithium Pallet Trucks Battery, 

Nowadays, most countries and regions in the world require products related to safety, health, environmental protection, and other projects to obtain safety certification before entering the market. The UL mark has become one of the world-renowned safety certification marks.

The UL certification testing standards are as follows:

1. Shell

The casing of lithium-ion batteries should have sufficient strength and rigidity to resist excessive pressure without causing ignition. The user replaceable lithium-ion battery should have sufficient strength without harming people.

2. Electrolyte

The user replaceable battery should not contain pressure vapor or toxic vapor and liquid that can harm the eyes, or the liquid leaked from the battery shell under normal laboratory conditions (temperature 23 ℃) when impacted should be less than 5ml.

3. Use

Lithium ion batteries should take measures to prevent abnormal charging currents during use. The tested battery has an acceptable charging current Ic, and protective measures should be taken in the end product under abnormal conditions.

4. Leakage of liquid

The standard for leakage or leakage quality loss is that the maximum loss of battery cell or battery quality should not exceed 1g 0.5%, and 1-5g 0.2%>5g 0.1%.

5. Mechanical testing

1) Squeezing: Apply a pressure of 13KN (pressure 17.2 Mpa) to the two flat surfaces of the battery through a hydraulic piston with a diameter of 32mm, and release the pressure when the maximum pressure is reached. The sample does not ignite or explode.

2) Impact: Place a rod with a diameter of 15.8mm at the center of the sample, and drop a weight of 9.1Kg from a height of 610mm onto the sample. The sample does not ignite or explode.

3) Acceleration: The battery is placed on a fixed fixture and accelerated in three mutually perpendicular directions (acceleration requirements: the minimum average acceleration within the initial 3ms should reach 75g, and the peak acceleration should be between 125-175g). The experimental temperature is 20 ± 5 ℃. The sample should not catch fire, explode, or leak liquid.

4) Vibration: The battery undergoes simple tuning vibration (along three mutually perpendicular directions), with a vibration frequency ranging from 10-55Hz and changing at a rate of 1Hz/min, recovering within 90-100min with an amplitude of 0.8mm. The sample should not ignite, explode, or leak.

Lithium Batteries ,Ensure Quality

Our lithium battery production line has a complete and scientific quality management system

Ensure the product quality of lithium batteries

Years of experience in producing lithium batteries

Focus on the production of lithium batteries

WE PROMISE TO MAKE EVERY LITHIUM BATTERY WELL

We have a comprehensive explanation of lithium batteries

QUALIFICATION CERTIFICATE

THE QUALITY OF COMPLIANCE PROVIDES GUARANTEE FOR CUSTOMERS

MULTIPLE QUALIFICATION CERTIFICATES TO ENSURE STABLE PRODUCT QUALITY

Providing customers with professional and assured products is the guarantee of our continuous progress.

Applicable brands of our products