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:2024-07-11 Hits: Popular:AG11 battery
New technology that can restore aged button battery 2025 and extend cycle life
As lithium-ion battery technology has become more stable, the portable electronic devices and electric vehicle industries have flourished, resulting in an increasing global demand for lithium-ion batteries. However, long-term use of lithium-ion battery products will cause the internal materials of the battery to age and reduce the storage capacity, resulting in the need to replace new batteries after a period of use. The most common charging method on the market is the constant current-constant voltage (CC-CV) charging method. However, this charging method will cause the formation of a solid electrolyte interface (SEI) inside the battery when the constant current (CC) charging stage is about to end, causing the loss of cyclable lithium ions in the battery, resulting in a decrease in the battery cycle life.
Chen Baiduan and others from the Condensed Matter Science Research Center of the University used density functional theory to analyze and calculate the movement of lithium ions inside lithium iron phosphate (LiFePO4) batteries, and established a sine wave charging model. This model introduces a negative voltage during the charging process to suppress the formation of a passivation layer.
The researchers compared the battery capacity of the sine wave charging method and the traditional CC-CV charging method based on the standard that the battery capacity of electric vehicles needs to be replaced when it is less than 80%. The battery was charged and discharged with a large current to simulate the use of electric vehicles. The experimental results show that the traditional CC-CV charging method reaches 80% capacity after 600 cycles, while the battery using the sine wave charging method still has 95% of the remaining capacity, indicating that the sine wave charging method has the effect of extending the battery life.
In addition, charging the batteries that have been eliminated from electric vehicles with the sine wave charging method can also increase the capacity by up to 18.7%. During the sine wave charging process, the battery temperature rises by up to 9°C, and the charging time is only half of the traditional CC-CV charging method, which is better than the traditional CC-CV charging method.
To verify the effect of the sine wave charging method on the impedance of the SEI film inside the battery, the researchers used electrochemical impedance spectroscopy (EIS) to analyze the battery. The results showed that after 600 cycles using this charging method, the growth of the SEI film was effectively inhibited compared to the battery using the traditional CC-CV, and the internal impedance was maintained at a level similar to that of a new battery. This shows that this charging method has less damage to the internal material structure of the lithium-ion battery and can provide the battery with a longer service life. Therefore, this charging method will provide a better choice for users of lithium-ion battery products.
Read recommendations:
Definition of series parallel connection of lithium battery
Characteristics of commonly used protection schemes for lithium batteries
Last article:button battery 2032
Next article:LR6 alkaline battery
Popular recommendation
portable energy storage battery power supply Vendor
2023-05-1018650 battery 1800mah
2023-03-2218650 1500mAh 3.7V
2023-03-2236v 20ah lithium ion battery pack
2023-05-09photovoltaic energy storage battery manufacture
2023-05-10LR14
2022-07-01Home energy storage battery GN-BOX1
2022-09-27D USB 1.5V 6000mWh
2023-06-29Rack-mounted energy storage battery GN-2560
2022-09-27601435 270MAH 3.7V
2023-06-12602535 500mAh 3.7V
2022-07-0118650 2000mAh 3.7V
2022-06-20Ni-MH AAA700mAh 1.2V
2022-07-0118650 10000mAh 14.8V
2022-09-30601848 500mAh 3.7V
2022-07-01CR2032 button cell battery
2023-06-25CR1130 battery
2023-06-2518650 battery pack
2023-06-25lithuim ion battery 18650
2023-06-25Dry Battery
2023-06-25Lithium manganate (LiMn2O4).lifepo9 battery for solar energy storage Factory
2023-04-18Development of Lithium Battery Materials
2024-04-17Reasons for the decrease in lithium battery capacity.LR726 battery
2023-06-13Lithium Manganate Lithium - ion Batteries
2024-12-09Working Principle of Liquid Lithium - Ion Batteries
2025-05-17What is the reason why the customized capacity of lithium batteries is declining faster and faster?1
2023-09-08Low temperature ultra -thin battery.solar energy battery storage system manufacturer
2023-04-15Basic composition of lithium battery.rechargeable solar energy storage battery Processing
2023-05-08How to detect the quality of large capacity lithium batteries?18650 lithium ion battery 3.7v
2023-09-08What are the characteristics of high-voltage lithium batteries?CR1625 battery
2023-08-19