
Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery

3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
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:2025-07-18 Hits: Popular:AG11 battery
The swelling of liquid lithium - ion batteries is a concerning issue that can not only reduce the battery's performance but also pose significant safety risks. Several factors contribute to the occurrence of battery swelling, and understanding these causes is crucial for preventing and addressing this problem.
One of the primary causes of swelling in liquid lithium - ion batteries is the generation of gas within the battery. As mentioned earlier, at high temperatures or during improper charging and discharging processes, the electrolyte can decompose, producing gas by - products such as carbon dioxide, carbon monoxide, and hydrocarbons. The accumulation of these gases inside the battery increases the internal pressure, causing the battery to swell. In addition, side reactions at the electrodes can also generate gas. For example, the reduction of electrolyte components at the anode or the oxidation of electrode materials at the cathode can lead to gas evolution.
Another cause of battery swelling is the growth of lithium dendrites. During fast charging or when the battery is operated under extreme conditions, lithium ions may deposit on the anode surface in a non - uniform manner, forming needle - like structures called lithium dendrites. As these dendrites grow, they can penetrate the separator and cause a short - circuit within the battery. The short - circuit generates heat, which can accelerate the decomposition of the electrolyte and further increase the internal pressure, leading to swelling.
The degradation of the electrode materials over time can also contribute to battery swelling. With repeated charge - discharge cycles, the structure of the cathode and anode materials can change. The particles may crack or agglomerate, reducing the available surface area for lithium - ion storage and causing an increase in impedance. This impedance increase can lead to overheating during charging and discharging, which in turn can trigger the decomposition of the electrolyte and gas generation, resulting in swelling.
External factors can also play a role in battery swelling. Physical damage to the battery, such as punctures or impacts, can compromise the integrity of the battery casing and allow air or moisture to enter. Moisture can react with the electrolyte and electrode materials, causing chemical reactions that generate gas and lead to swelling. Additionally, storing the battery in a high - humidity environment or exposing it to extreme temperatures for an extended period can also accelerate the degradation processes and contribute to swelling.
To address the issue of battery swelling, it is essential to improve the battery design, optimize the manufacturing process, and implement proper usage and storage practices. This includes using better - quality materials, developing more stable electrolytes, and improving battery management systems to prevent overcharging, over - discharging, and overheating. By understanding the causes of swelling and taking appropriate preventive measures, the safety and reliability of liquid lithium - ion batteries can be significantly enhanced.
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