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SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD

SINO TECHNOLOGY

Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .

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SUNBEAM

Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales

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GREEN POWER

Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc

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DATAPOWER

Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.

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SEONG-HEE

Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc

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STD

Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.

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CR1130 battery.How to test the safety performance of lithium batteries

release time:2023-11-03 Hits: Popular:AG11 battery

　　How do lithium battery manufacturers test the safety performance of lithium batteries? Here are the detailed methods:

　　1. Overcharge test

　　Fully charge the lithium battery and conduct an overcharging test according to 3C overcharging. When the battery overcharges, the voltage rises to a certain level and remains stable for a period of time. When it approaches a certain level, the battery voltage rapidly increases. When it reaches a certain limit, the battery cap is pulled off, and the voltage drops to 0V. The battery does not ignite or burst.

　　2. Short circuit test

　　After fully charging the battery, use a wire with a resistance of no more than 50m Ω to short-circuit the positive and negative poles of the battery. Test the temperature change of the battery's surface. The temperature of the battery's surface should be 140 ℃, and the battery cover should be placed open to ensure that the battery does not ignite or burst; Acupuncture test: Place a fully charged battery on a flat surface and use a 3mm diameter steel needle to pierce the battery radially. Testing that the battery does not ignite or burst is sufficient; Kneading test: Place a fully charged battery on a flat surface, apply a kneading force of 13+1KN by an hydraulic cylinder, and knead the battery on a flat surface using a steel rod with a diameter of 32mm. Once the kneading pressure reaches the stop, the battery will not ignite or burst.

　　3. Heavy object impact test

　　After fully charging the battery, place it on a flat surface, place a steel column with a diameter of 15.8mm vertically on the battery base, and place a weight of 9.1kg freely on the steel column above the battery from a height of 610mm. The battery should not ignite or explode.

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