The function of battery extrusion needle punching integrated machine
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.
The battery extrusion needle punching integrated machine meets the following national standards
GB 31241 “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)《家用及商用電池安全標準》
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 行動電話用鋰離子電池通用規範
SJ/T 11170-1998 (UL2054:1997) “Safety Standard for Household and Commercial Batteries”
UN 38.3 關於危險貨物運輸的建議 – 測試和標準手冊，第 III 部分，第 38.3 節
UL 1642“鋰電池標準”2054“家用和商用電池組”
IEC62133-2012《含有鹼性或非酸性電解液的蓄電池和電池組－便攜式設備密封電池和電池組的安全要求》
GB/T 8897.4-2008（IEC 60086-4:2007）《原電池第4部：鋰電池安全要求》
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）《鋰一次和二次電池運輸過程中的安全要求》
Test method for battery extrusion needle punching integrated machine:
Preparation for using a battery compression needle punching integrated machine test: Place the tested battery on the test bench, adjust the position and angle of the battery, and ensure the accuracy of compression and needle punching. At the same time, set parameters such as extrusion pressure, extrusion time, needle pressure, and needle speed according to the testing requirements.
Battery compression test: After fully charging the battery according to the prescribed test method, place the battery in two planes and compress 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.
Battery 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 for any time, and if the battery does not explode or ignite, it is considered qualified. The battery compression testing machine complies with standards such as GB31241-2014.
Precautions for using battery compression needle testing machine
1. Before operation, it is necessary to fully understand the structure and working principle of the equipment, and operate it according to the equipment’s user manual.
During the operation, appropriate protective equipment should be worn, such as protective gloves, goggles, etc.
During use, the equipment should be regularly inspected and maintained to ensure its normal operation.
During the testing process, it should be ensured that the tested battery is in a safe state to avoid unexpected situations.
After the testing is completed, the equipment should be cleaned and maintained to keep it clean and in good condition