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:2022-12-29 Hits: Popular:AG11 battery
1 Definition of Inconsistency: Inconsistency of lithium-ion battery pack refers to the difference of voltage, capacity, internal resistance, life, temperature effect, self discharge rate and other parameters after the battery pack is composed of single batteries of the same specification and model.
There are some differences in the initial performance of single cells after they are manufactured. With the use of batteries, these performance differences continue to accumulate. At the same time, the use environment of each single battery in the battery pack is not completely the same, which also leads to the gradual amplification of the inconsistency of the single battery, thus accelerating the decline of battery performance, and ultimately causing premature failure of the battery pack.
2. Inconsistency performance The inconsistency of lithium ion battery is mainly manifested in two aspects: the difference of cell performance parameters (battery capacity, internal resistance, self discharge rate, etc.) and the difference of battery state of charge (SOC).
Dai Haifeng and other researchers found that the distribution of capacity difference between cells is close to the Weir distribution, and the dispersion of internal resistance is more significant than the capacity, and the internal resistance of the same batch of batteries generally meets the normal distribution law, and the self discharge rate also presents a similar normal distribution. SOC represents the state of charge of the battery, which is the ratio of the remaining capacity of the battery to the rated capacity. Decompetition and others believe that the capacity decay rate of the battery is different due to the inconsistency of the battery, leading to the difference in the maximum usable capacity between batteries. The SOC change rate of the battery with small capacity is faster than that of the battery with large capacity, and the cut-off voltage is reached faster during charging and discharging.
3 Cause of inconsistency There are many reasons for the inconsistency of lithium ion batteries, mainly in the manufacturing process and use process. Each link in the manufacturing process, such as the uniformity of the slurry during batching, the control of the surface density and surface tension during coating, will cause the difference in the performance of the single cell.
Luo Yu et al. studied the influence of lithium ion battery production process on battery consistency, focusing on the influence of lithium ion battery production process with water-based binder system on battery consistency. During the use of the battery, Xie Jiao and others believed that the connection mode, structural parts/devices, operating conditions and environment would affect the consistency of the battery pack. Because the energy consumed at each connection point is inconsistent, the performance and aging rate of each component or structure are also inconsistent, so the impact on the battery is also inconsistent. In addition, due to the different positions, temperatures and performance attenuation of each cell in the battery, the inconsistency of the cell will be amplified.
Read recommendations:
Lithium iron battery.LR927 battery
What is the purpose of lithium-ion battery pack formation?
Last article:Battery module performance test
Next article:How Lithium Batteries Deal with Inconsistencies
Popular recommendation
NiMH No.7 battery
2023-03-22703048 battery company
2023-03-22li ion 18650 battery pack
2023-03-22701224 battery wholesaler
2023-03-223.2v 100ah lifepo4 battery cell
2023-03-22Coin Battery LR 521
2022-10-1518650 1200mAh 3.7V
2022-06-20Lithium Battery GN6050
2022-08-19Lithium Battery GN6020
2022-08-19502030 200MAH 3.7V
2023-06-12Lithium Battery LQ-1218
2022-08-19Li-ion 18650 3200mAh 3.7V
2022-06-20801520 180mAh 3.7V
2022-08-1918650 7200MAH 3.7V
2022-07-29Ni-MH AA1200mAh 1.2Va
2022-07-0118650 lithium battery cells
2023-06-25NiMH battery packs direct sales
2023-08-043.7 volt battery 18650
2023-06-25CR2430 battery
2023-06-25AA Dry Battery
2023-06-25Durability of Energy Storage Batteries
2025-03-27The disadvantages of using LCD batteries in UPS UPS.energy storage battery for solar system Processi
2023-04-12Maintenance rules for unmanned aerial vehicle lithium batteries
2024-06-06Solid state batteries leading the next wave of lithium batteries, starting from soft packs!
2022-12-01What is the UL certification for lithium batteries?
2024-07-05Definition of 8V lithium ion battery
2022-12-06What is the difference between ternary lithium battery and lithium iron phosphate battery
2022-11-08Lithium ion polymer battery charging.rechargeable battery 18650 3.7v
2023-05-23Lithium battery safety.Nickel Hydride No. 5 battery
2023-03-28Main advantages of lithium battery
2022-12-16