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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 .
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
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
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.
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
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.
release time:2024-03-15 Hits: Popular:AG11 battery
Why is cr2032 3v lithium battery pack highly safe?
Why is the cr2032 3v lithium battery pack highly safe? Safety of use is the first of the three key factors in the development of new energy vehicles. cr2032 3v lithium battery pack uses lithium iron phosphate as the cathode material of the lithium battery pack. It is the most environmentally friendly, longest-lasting, safest, and largest discharge rate among all lithium battery packs currently. The thermal stability of lithium iron phosphate batteries is the best among current automotive lithium batteries.
The working principle of cr2032 3v lithium battery pack is the same as that of lithium battery pack. Both are charged and discharged through the process of moving lithium ions back and forth through the electrolyte in the positive and negative electrodes of the battery. In terms of capacity, cr2032 3v lithium battery packs can be divided into three major categories: small, medium and large. In terms of parameters, there are also differences in the same parameters of different types of batteries.
Why is the cr2032 3v lithium battery pack highly safe?
The P-O bond in the lithium iron phosphate crystal is stable and difficult to decompose. Even at high temperatures or overcharge, it will not collapse and generate heat or form strong oxidizing substances like lithium cobalt oxide, so it has good safety. There are reports that a small number of samples were found to be burning during acupuncture or short-circuit experiments during actual operations, but there was not a single explosion.
The stability of the cr2032 3v lithium battery pack at high temperatures can reach over 390°C, ensuring the inherent high safety of the lithium battery pack. It will not explode or burn due to overcharging, excessive temperature, short circuit, or impact, and can be easily Through acupuncture experiments. This safety feature is most suitable for China's new energy vehicle industry, which is still in its infancy.
The combustion of lithium iron phosphate batteries requires external oxygen supply. Once the oxygen source is cut off, the fire can be extinguished. In extreme cases, lithium iron phosphate does not burn violently, and the fire expands relatively slowly, and the fire is easier to extinguish.
Compared with a single cr2032 3v lithium battery, the cr2032 3v lithium battery pack has many advantages, but it also inevitably has disadvantages. In terms of advantages, cr2032 3v lithium battery packs have high safety performance, long life, good high-temperature performance, large capacity, light weight, and good environmental protection. However, in terms of disadvantages, the service life of a single cr2032 3v lithium battery is longer than that of the battery pack. Much higher. In addition, in terms of low-temperature performance, cr2032 3v lithium battery packs are not very good, and their conductive properties also need to be further developed and improved.
The deoxidation temperature of ternary materials is 200°C, and the exothermic energy exceeds 800J/g. The ternary lithium battery cannot pass the needle stick test, which shows that the ternary battery can easily cause safety accidents when there is an internal short circuit.
The absolute advantages of lithium iron phosphate batteries over ternary lithium batteries in terms of safety and cycle life are the key elements and development needs of China's new energy vehicles. As long as its development status is clear and investment is increased to solidify this advantage, China's new energy vehicles will have the possibility of overtaking in corners.
When the battery temperature is at a high temperature of 500-600℃, its internal chemical components begin to decompose. However, the internal chemical components of lithium cobalt oxide batteries, which are also lithium batteries, are already in an unstable state at 180-250℃. In other words, the safety of cr2032 3v lithium battery packs is second to none among lithium batteries, and for this reason, it has become one of the main categories of electric vehicle batteries.
cr2032 3v lithium battery safety and reliability testing project
General cr2032 3v lithium battery test items include: internal short circuit test, continuous charging test, overcharge, high current charging, forced discharge, drop test, drop test from height, penetration test, flat crushing test, cutting test, low pressure Internal shelving test, thermal abuse test, water immersion test, burning test, high pressure test, baking test, electronic furnace test, etc.
1. Extrusion test: Place the fully charged cr2032 3v lithium battery on a flat surface, apply a squeezing force of 13±1KN from the hydraulic cylinder, and squeeze the battery flatly with a steel rod with a diameter of 32mm. Once the squeezing pressure Stop squeezing when it reaches the maximum, and the battery will not catch fire or explode.
2. Impact test: After the battery is fully charged, place it on a flat surface, place a 15.8mm diameter steel column vertically in the center of the battery, and freely drop a 9.1kg weight from a height of 610mm onto the steel column above the battery. Lithium batteries do not need to catch fire or explode.
3. Overcharge test: Fully charge the cr2032 3v lithium battery at 1C, and conduct the overcharge test according to 3C overcharge 10V. When the battery is overcharged, the voltage rises to a certain voltage and stabilizes for a period of time. When approaching a certain time, the battery voltage rises rapidly. When it rises to a certain limit, the battery cap is pulled off and the voltage drops to 0V. It is sufficient that the lithium battery does not catch fire or explode.
4. Short circuit test: After the battery is fully charged, short-circuit the positive and negative poles of the battery with a wire with a resistance of no more than 50mΩ, and test the surface temperature change of the battery. The maximum surface temperature of the battery is 140°C. When the battery cap is opened, the battery will not catch fire or explode. .
5. Acupuncture test: Place the fully charged battery on a flat surface, and use a 3mm diameter steel needle to pierce the battery in the radial direction. Just test that the lithium battery pack does not catch fire or explode.
6. Temperature cycle test: The temperature cycle test of cr2032 3v lithium battery is used to simulate the safety of lithium-ion batteries when they are repeatedly exposed to low and high temperatures during transportation or storage. The test is rapid and extreme. carried out by temperature changes. After the test, the sample should not catch fire, explode, or leak.
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