1、 Product Overview:
The battery squeezing and needle punching integrated machine is suitable for simulating the situation where various types of batteries are subjected to squeezing and puncture during use, transportation, storage, or disposal of household waste. The extrusion direction of the extrusion test should follow the following rules: a battery should only be extruded once, and the battery is considered qualified if it does not explode or ignite.
For cylindrical batteries, the longitudinal axis of the squeezed battery should be parallel to the two flat plates of the squeezing device;
2. For square and soft pack batteries, only squeeze the wide surface of the battery;
3. For coin or button type batteries, squeeze them in a way that the upper and lower planes of the battery are parallel to the flat plate.
Test method:
Squeezing test: After fully charging the battery according to the prescribed test method, place the battery in two planes and squeeze it perpendicular to the direction of the electrode plate. Apply a squeezing force of 13KN+0.78KN between the two plates. Once the pressure reaches its maximum value, the compression test can be stopped, and the battery must not experience external short circuits during the test.
The battery should not catch fire or explode.
Needle puncture test: The needle puncture test should be conducted in an environment of 20 ℃± 5 ℃. The battery should be placed flat on the fixture, and a corrosion-resistant steel needle with a diameter of φ 3- φ 8mm should be inserted into the center position of the battery surface at a speed of 10mm/s-40mm/s. The test results should be observed at any time. If the battery does not explode or ignite, it is considered qualified. The battery compression testing machine complies with standards such as GB31241-2014.
2、 According to the standard:
GB 31241-2022 “Safety Requirements for Lithium ion Batteries and Battery Packs for Portable Electronic Products”
MT/T 1051-2007 “Lithium ion batteries for mining lamps”
SJ/T 11169-1998 (UL1642:1995) “Safety Standard for Household and Commercial Batteries”
YD 1268-2003 “Safety Requirements and Test Methods for Lithium Batteries and Chargers in Mobile Communication Handheld Devices”
GB/T 19521.11-2005 “Safety Specification for Inspection of Dangerous Characteristics of Lithium Battery Pack Dangerous Goods”
GB/T 18287-2013 General specification for lithium-ion batteries for cellular phones
SJ/T 11170-1998 (UL2054:1997) “Safety Standard for Household and Commercial Batteries”
UN 38.3 Recommendations on the Transport of Dangerous Goods – Manual of Tests and Criteria, Part III, Section 38.3
UL 1642 “Lithium Battery Standard” 2054 “Household and Commercial Battery Pack”
IEC62133-2012 “Storage batteries and battery packs containing alkaline or non acidic electrolytes – Safety requirements for sealed batteries and battery packs for portable devices”
GB/T 8897.4-2008 (IEC 60086-4:2007) “Primary batteries – Part 4: Safety requirements for lithium batteries”
YDB 032-2009 “Backup Lithium ion Battery Pack for Communication”
YD/T 2344.1-2011 “Lithium iron phosphate battery pack for communication – Part 1: Integrated battery pack”
GB/T 21966-2008 (IEC 62281:2004) “Safety Requirements for Lithium Primary and Secondary Batteries during Transport”
