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:2024-04-19 Hits: Popular:AG11 battery
Why do 18650 lithium battery 2600mah phosphate batteries expand?
1. Overcharging causes the lithium battery to bulge.
Excessive charging will cause the lithium molecules in the battery cathode material to completely enter the battery cathode material, causing the original round grid of the cathode to deform and collapse. This is the main reason for the reduction in battery capacity of 18650 lithium battery 2600mah phosphate batteries. As the number of lithium-ion batteries on the negative stage increases, the excessive deposition of lithium molecules causes them to grow into tree-shaped crystals, which in turn causes the lithium battery to expand.
2. Bulge caused by power loss.
When the lithium liquid rechargeable battery is first charged, the metal electrode and the lithium battery electrolyte react on the solid liquid phase to form a passivation layer that covers the surface of the metal electrode.
The passivation film formed can effectively block the basis of the molecular structure in the lithium battery electrolyte, but Li+ can be freely inserted and resin-adsorbed through the passivation layer, and has the characteristics of a solid electrolyte, so this passivation film is called It's called SEI. The SEI film is not static. A small amount of changes will occur during the charging process, mainly because some organic compounds will undergo reversible changes.
Excessive charging and discharging of the 18650 lithium battery 2600mah phosphate battery pack caused reversible damage to the SEI plastic film, which protected the battery's positive electrode material SEI and caused it to collapse, thus causing the packaging phenomenon.
3. It’s a matter of production and manufacturing standards.
The manufacturing level of 18650 lithium battery 2600mah phosphate battery packs has problems with packaging, the electroplating of lithium battery packs is uneven, and the production process is relatively rough.
4. The 18650 lithium battery 2600mah phosphate battery pack may bulge if it is not used for a long time. Since gas is conductive to a certain extent, charging and discharging for too long is equivalent to direct contact between the positive and negative electrodes of the battery, resulting in long-term short circuit failure.
Read recommendations:
Fully sealed lithium manganese battery.18650 battery lithium ion 2200mah
The advantages of soft pack lithium batteries
Last article:Nickel Hydride No. 5 battery
Next article:18650 battery 3500mah lithium
Popular recommendation
AA Ni-MH battery manufacturer
2023-03-22solar energy storage battery pack direct sales
2023-05-1018650 li ion rechargeable battery
2023-03-22energy storage battery for solar system company
2023-05-103.2v 320ah lifepo4 battery
2023-03-22551521 130MAH 3.7V
2023-06-12Ni-MH AA600mAh 1.2V
2022-07-01Coin Battery CR 2430
2022-09-27402030 180mAh 3.7V
2022-07-0118650 2500mAh 3.7V
2022-08-19LR03
2023-02-07522749 880MAH 3.7V
2023-06-12Ni-MH AA1200mAh 1.2Va
2022-07-0118650 1200mAh 3.7V
2022-06-20801520 180mAh 3.7V
2022-08-1918650 li ion rechargeable battery
2023-06-2518650 battery pack sales
2023-06-253.7 volt battery 18650
2023-06-253.7v 18650 lithium battery
2023-06-2518650 lithium battery 2600mah
2023-06-25Low Self-Discharge of Lithium-Ion Batteries
2025-01-08Why Are Unusual - Shaped Batteries So Expensive?
2025-05-15Motor lithium battery.14250 battery
2023-05-24Negative electrode materials for lithium batteries.CR2450 battery
2023-08-16Safety of Shaped Batteries
2025-03-28What are the ingredients of lithium battery electrolyte.energy storage battery for solar system whol
2023-04-13The issue of replacing the smartphone battery.18650 lithium ion battery 3.7v
2023-09-23Lithium battery charging and discharging cycle.401030 lipo battery
2023-07-03Improve the treatment of Iron(II) phosphate lithium battery
2023-10-07What are the effects of lithium battery protection board?energy storage system lithium battery Manuf
2023-05-08