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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:2023-09-20 Hits: Popular:AG11 battery
In the research and development of lithium-ion batteries, improving the safety of use has always been a focus of research. Due to the high mass to energy ratio and the fact that most electrolytes are organic inflammables, safety issues may arise when the heat generation rate of the battery exceeds the heat dissipation rate. Research has pointed out that lithium-ion batteries may reach temperatures above 700 ° C during abuse, leading to smoke, fire, and even explosion of the battery; When the discharge reaches below 1V, copper will precipitate on the surface of the positive electrode, causing an internal short circuit in the battery; Under overcurrent conditions, the internal temperature of the battery is also prone to increase, leading to deterioration or even damage to battery performance. Figure 1.1.1 shows the chemical reactions and performance changes inside lithium-ion batteries under overcharging and discharging conditions, where M represents metal ions such as Co, Al, Ni, etc.
To improve the safety of lithium-ion batteries, in addition to conducting in-depth mechanism research, selecting appropriate electrode materials, and optimizing the overall structure, it is also necessary to effectively manage the battery through integrated circuits (ICs) on the periphery of the battery. There are reports that in recent years, Battery Management chips are expected to grow the fastest in both sales and sales among Power Management chips. The management objectives of lithium-ion batteries include monitoring battery voltage, charging and discharging current, temperature monitoring, data calculation, and storage. The system that manages chips, including protection circuits, fuel detection circuits, and the ability to transmit battery data, is called the Smart Battery System (SBS). In addition to effectively protecting the battery, SBS can also output residual energy signals (which can be displayed on LCD), which will be the main goal of the development of lithium-ion battery management chips. At present, the protocols for SBS applications have developed to SBdata1.1 (data protocol) and SMbus2.0 (bus protocol), and in laptops such as IBM and Sony, several models have adopted SBS based on battery protection circuits.
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