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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.

source:Industry News release time:2025-03-26 Hits: Popular:AG11 battery

Lithium - ion batteries have become an integral part of our daily lives, powering everything from smartphones to electric vehicles. However, their safety issues have raised significant concerns.
Thermal Runaway
One of the most critical safety risks associated with lithium - ion batteries is thermal runaway. This occurs when the battery experiences a rapid increase in temperature, leading to a self - perpetuating exothermic reaction. There are several factors that can trigger thermal runaway. Overcharging is a common culprit. When a lithium - ion battery is overcharged, the lithium ions in the cathode can move to the anode at an excessive rate, causing the formation of lithium metal deposits. These deposits can short - circuit the battery, generating heat. Another cause is internal short - circuits within the battery. Defects in the separator, which is supposed to keep the positive and negative electrodes apart, can allow the electrodes to touch, resulting in a short - circuit. Once thermal runaway starts, the battery can release a large amount of heat, and in severe cases, it can even catch fire or explode. For example, in some smartphones, overheating due to thermal runaway has led to device failures and, in rare cases, safety hazards for users.
Electrolyte Flammability
The electrolyte used in lithium - ion batteries is often flammable. Most electrolytes are composed of organic solvents, such as carbonate - based solvents, which can easily catch fire when exposed to high temperatures or an ignition source. In the event of a battery failure, if the electrolyte leaks out and comes into contact with a hot surface or an open flame, it can ignite, further exacerbating the safety risk. To mitigate this, manufacturers are exploring the use of non - flammable or less - flammable electrolytes. Some are developing solid - state electrolytes, which are not only less likely to catch fire but also offer potential improvements in battery performance, such as higher energy density and better stability.
Cell Manufacturing Defects
Defects during the cell manufacturing process can also pose safety risks. For instance, if there are impurities in the electrode materials or if the manufacturing process does not ensure proper alignment of the components, it can lead to abnormal electrochemical reactions. Inconsistent coating of the electrodes can cause uneven distribution of current, leading to local overheating. Moreover, problems with the sealing of the battery can allow moisture to enter, which can react with the electrolyte and the electrode materials, causing degradation and potentially dangerous conditions. Stringent quality control measures are essential during the manufacturing process to minimize these defects and enhance the safety of lithium - ion batteries.
Battery Management Systems (BMS)
To address these safety issues, advanced Battery Management Systems are crucial. A BMS monitors the battery's voltage, current, and temperature. It controls the charging and discharging processes to prevent overcharging and over - discharging. For example, if the BMS detects that the battery voltage is approaching the upper limit during charging, it will reduce the charging current or stop the charging process. In case of overheating, the BMS can trigger cooling mechanisms, such as fans or liquid - cooling systems, to dissipate the heat. However, the effectiveness of the BMS depends on its design and the accuracy of its sensors. Regular calibration and maintenance of the BMS are necessary to ensure it functions properly and keeps the lithium - ion battery safe.
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