GB31241 portable lithium battery , battery related testing projects

GB31241 lithium battery testing product series

Safety requirements for lithium-ion batteries and accumulators for portable electronic products

The GB31241 standard can be applied to lithium-ion batteries and battery packs for portable electronic technology products, 18650 pack builder mainly by targeting mobile electronic information products not exceeding 18KG that are intended to be used by students and often carried by managers, the main research examples are as follows:

1. Portable office products: laptop, PDA, etc. :

2. Mobile communication products: mobile phones, battery manufacturing machine cordless phones, Bluetooth headsets, walkie-talkies, etc.

3. Portable audio and video products: portable TV, li ion battery construction portable DVD player, MP3/MP4 player, camera, camcorder, recorder, etc.

Other portable products: electronic navigation devices, digital photo frames, game consoles, e-books, etc.

The portable electronic technology product development listed above does not include all the products of the enterprise, so the product design not listed is not necessarily outside the scope of this standard.

GB31241 Lithium battery sample quantity requirements

1. 27 main battery test samples, 14 battery test samples;

2. 33 samples of battery pack, 17 samples:

3. For batteries and battery packs that do not have protective circuits in themselves but have protective circuits in their chargers or in electronic products powered by them, at least five electronic products powered by the battery or battery packs shall also be sent.

Potassium battery GB31241 detection technology project

1. Battery safety test: room temperature external short circuit, high temperature external short circuit, overcharge, forced discharge;

2. Battery environmental safety test: low voltage, temperature cycle, vibration, accelerated impact, drop, extrusion, heavy impact, heat abuse, combustion injection;

3. Battery pack environmental safety test: low pressure, temperature cycle, vibration, accelerated impact, drop, stress release, high temperature use, washing, flame retardant requirements;

4. Battery pack electrical safety test: overvoltage charging, overcurrent charging, undervoltage discharge, overload, external short circuit, reverse charging, electrostatic discharge;

5. Battery protection circuit system safety management requirements: overvoltage charging environmental protection, overcurrent charging protection, undervoltage discharge protection, overload protection, short circuit protection, high voltage resistance;

6. System protection circuit safety requirements: charge voltage control, charge current control, discharge voltage control, discharge current control, charge and discharge temperature control.

Lithium battery common test items

①IEC62133-2 is the European Union launched on the safety of rechargeable lithium battery standards, is the most widely certified authoritative standard in the world, used to assess the safety and reliability of lithium batteries and batteries under various failures. The main test items include room temperature short circuit test, housing stress test, room temperature short circuit test, 55 degree short circuit test, free fall test, heat abuse test, squeeze test, overcharge test, forced discharge test, mechanical shock test, vibration test and forced internal short circuit test.

2IEC62133-2 high-risk items: heat abuse test, extrusion test, 55 degree short circuit test, forced internal short circuit test, etc.

IEC60086-4 is the European Union's safety standard for non-rechargeable lithium batteries and batteries. The main test items include altitude simulation test, temperature cycle test, vibration test, mechanical impact test, external short circuit test, weight impact test, extrusion test, forced discharge test, abnormal charge test, free drop test, heat abuse test, incorrect installation test, overdischarge test, etc.

UL 1642 is the first edition of the United States UL launched in October 1985 for the safety of lithium cell regulatory management standards, is the most widely developed certification in the world to evaluate the lithium cell in the general case of various system failures under the battery enterprise safety and reliability of the authoritative data standard. The main research focuses on the cell. UL 1642's main pass test technical items include room temperature short circuit test, 55 degree short circuit test, overcharge test, extrusion test, heavy impact performance test, mechanical design impact test, vibration analysis test, hot box test, temperature continuous impact test, high altitude simulation software test, ejection test, etc.

The 5UL2054 is used for lithium-ion batteries or lithium-ion battery packs. Suitable for products with primary (non-rechargeable) and secondary (rechargeable) batteries as power sources. These batteries may consist of a Gaffani battery or two or more parallel or tandem lithium-ion batteries that convert chemical energy into electricity through a chemical reaction. Ul2054 test items mainly include electrical test (short circuit test, overcharge test, overcharge test, overcharge test, limited power supply test), mechanical test (squeeze test, impact test, acceleration test, vibration test) battery shell test, drop test, 250N Static test, die pressure release test, fire test, projectile test, environmental test, high temperature test, temperature cycle test, etc.

⑥ High-risk items of UL2056: overcharge test, power limit test, temperature rise test, capacity verification test, temperature rise test, abnormal overcharge test, etc.

Normal charging, abnormal operation, lithium battery short circuit, lithium battery vibration test, shell pressure test, mechanical strength test, creepage distance, electrical gap, insulation distance, heat and fire resistance, hot wire test, ball pressure test, etc.