GB/T 36363-2018 "Polyolefin separators for lithium-ion batteries" specifies the method for testing the air permeability of polyolefin separators for lithium-ion batteries. This standard is applicable to separators for lithium-ion batteries mainly made of polyolefin resin. Coated polyolefin separators or separators for lithium-ion batteries made of other materials can follow this standard.

GB/T 36363 Polyolefin separators for lithium-ion batteries: SYSTEST Jinan Sike permeability tester

SYSTEST Jinan Sike GTR-704R air permeability meterIt is a professional equipment used to test the breathability of battery separators, using the principle of volumetric testing. It is suitable for testing the gas permeability of battery separators, breathable membranes, and related polymer materials, as well as for testing the gas permeability of cigarette paper and various types of paper.

GTR-704R air permeability meterTesting principle: The volumetric method is used to test the time required for 100mL of air to pass through a membrane with an area of 6.45cm2 under a pressure of 1.21kPa applied by the testing instrument in a temperature, humidity, and atmospheric pressure environment.

Breathability is one of the important performance indicators of polyolefin separators for lithium-ion batteries, which directly affects the charging and discharging efficiency, cycle life, and safety of the battery. By using a diaphragm permeability tester, the permeability performance of the diaphragm can be accurately evaluated, providing strong support for battery design and manufacturing. The diaphragm permeability tester has the characteristics of high precision, automation, and easy operation, which can ensure the accuracy and reliability of the test results.

GTR-704R air permeability meterSuitable for measuring gas permeability and other indicators of materials such as battery separators, exchange membranes, carbon paper, paper, textiles, etc. Execution standards: ISO 5636.5, ASTM D726, TAPPI T460, GB/T 36363-2018, etc. The main features are as follows:

• • Easy to operate:Adopting an industrial TFT screen, touch screen operation, and a flat interface UI with zero navigation depth, the operation is convenient and fast, and it has one click testing and fully automatic testing functions.

• •Sample clamping method:Pneumatic sample clamping is convenient, fast, and can ensure the fixing effect of the sample.

• •Unit display:Supports multiple unit displays of s/100ml and um/Pa, meeting the needs of different users.

• •Report printing:Equipped with a micro printer, it can directly print test reports.

• •safeguard:Equipped with automatic overload protection function, it can effectively protect instruments and samples.

• •Communication interface:Equipped with standard communication interfaces for easy data transmission and connection with other devices.

Technical Indicators:

• •Test range: 10-15000s/100ml (standard configuration), other ranges are optional.

• •Resolution: 0.1S/100ml.

• •Pressure range: 20kPa (5kPa, 10kPa optional).

• •Pressure accuracy: 0.01kPa.

• •Test area: 1.0 in ² (0.25 in ², 0.1 in ² optional).

• •Sample thickness: ≤ 5mm.

• •Test gas: Clean air (to be provided by the user).

• •Gas source pressure: 0.3MPa-1.0MPa, interface size is Ø 6mm.