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:2024-10-11 Hits: Popular:AG11 battery
Research finds that weakening electrolytes' ability to bind lithium ions could help develop button battery cr1620 with low-temperature performance
Nanoengineers at the University of California San Diego have come up with new insights into lithium metal batteries that perform well at ultra-low temperatures; mainly, the weaker the electrolyte's binding to lithium ions, the better. By using this weakly bound electrolyte, the researchers developed a lithium metal battery that can be repeatedly charged at temperatures as low as -60 degrees Celsius, a first in the field.
The researchers reported their work in a paper published February 25 in Nature Energy.
In tests, the proof-of-concept battery retained 84% and 76% of its capacity over 50 cycles at temperatures of -40 degrees Celsius and -60 degrees Celsius, respectively. Such performance is unprecedented, the researchers say.
Other button battery cr1620 have been developed for use in subfreezing temperatures and are able to discharge in the cold, but require warmth to charge. This means that in order to use these batteries in applications such as outer space and deep-sea exploration, an additional heater must be carried. The new battery, on the other hand, can be charged and discharged at ultra-low temperatures.
The work, a collaboration between the labs of UC San Diego nanoengineering professors Ping Liu, Zheng Chen and Todd Pascal, offers a new way to improve the ultra-cold performance of lithium metal batteries. Until now, much research has focused on selecting electrolytes that are less prone to freezing and can keep lithium ions moving quickly between electrodes. In this study, the UC San Diego researchers found that it’s not necessarily how fast the electrolyte moves ions, but how easily the electrolyte releases the ions and deposits them on the anode.
“We found that the binding between the lithium ions and the electrolyte, and the structure of the ions in the electrolyte, is what determines whether these batteries live or die at low temperatures,” said first author John Holobeck, a nanoengineering doctoral student at the UC San Diego Jacobs School of Engineering.
The researchers made these findings by comparing the performance of batteries with two electrolytes: one that binds lithium ions weakly and one that binds lithium ions strongly. The lithium metal battery with the weakly binding electrolyte performed better overall at -60 degrees Celsius and was still running strong after 50 cycles. In contrast, the battery with the strongly binding electrolyte stopped working after just two cycles.
After cycling the batteries, the researchers separated them and compared the lithium metal deposits on the anode. The difference was also clear, with smooth, uniform deposits in cells with weakly bound electrolytes and clumpy and needle-like deposits in cells with strongly bound electrolytes.
Details matter
"The differences in battery performance all come down to interactions at the nanoscale," the researchers said. "How lithium ions interact with the electrolyte at the atomic level not only allows for sustainable cycling at very, very low temperatures, but also prevents the formation of dendrites."
To understand why, the team used computational simulations and spectroscopic analysis to study these interactions in detail. In one of the electrolytes, called diethyl ether (DEE), the researchers observed molecular structures where lithium ions were weakly bound to surrounding electrolyte molecules. In the other electrolyte, called DOL/DME, the researchers observed structures with strong bonds between the ions and electrolyte molecules.
These structures and bond strengths are important, the researchers say, because they ultimately determine how lithium deposits on the anode surface at low temperatures. Holoubek explains that in the weakly bound structures observed in the DEE electrolyte, lithium ions can easily leave the electrolyte, so it doesn't take much energy to get them to deposit anywhere on the anode surface, which is why the deposits in DEE are smooth and uniform. But in strongly bound structures, like those in DOL/DME, more energy is needed to pull lithium ions out of the electrolyte. As a result, lithium prefers to deposit where there are extremely strong electric fields on the anode surface, anywhere there are sharp points. The lithium will continue to accumulate on the sharp points until the battery shorts out, which is why the deposits in DOL/DME are clumpy and dendritic.
"It's important to figure out the different types of molecular and atomic structures that lithium forms, how lithium coordinates with certain atoms," said Pascal, who directed the computational research. "By fundamentally understanding how these systems fit together, we can come up with all kinds of new design principles for next-generation energy storage systems." The work demonstrates the power of nanoengineering, where figuring out what's happening at a small scale allows you to design devices at a large scale.
Compatible cathode
These fundamental insights enabled the team to design a cathode that is compatible with both the electrolyte and the anode, with low-temperature performance. It is a sulfur-based cathode made of low-cost, abundant and environmentally friendly materials, without the use of expensive transition metals.
The significance of this work is twofold, said Liu, whose lab designed the cathode and has been optimizing the cycling performance of this cathode under normal conditions of DEE. Scientifically speaking, it offers insights contrary to conventional wisdom. Technically, it is the first rechargeable lithium metal battery that can provide meaningful energy density while fully operating at -60°C. Both aspects provide a complete solution for ultra-low temperature batteries.
Read recommendations:
Rack-mounted energy storage battery GN-192V 100Ah
Lithium iron phosphate battery pack
Last article:button battery cr2032
Next article:button battery 2032
Popular recommendation
402030 battery direct sales
2023-03-223.7V Lithium Polymer Battery
2023-03-22401030 polymer battery company
2023-03-2218650 battery pack 12v
2023-03-2216340 battery
2023-03-22Rack-mounted energy storage battery GN-2560
2022-09-2716340 500MAH 3.7V
2022-10-15505060 2000MAH 7.4V
2023-06-10Li-ion 18650 3500mAh 3.7V
2022-06-20521133 160mAh 3.7V
2022-07-019V card-mounted carbon battery 6F22
2023-06-2814500 450MAH 3.7V
2022-10-15186095 6000mAh 7.4V
2022-08-23Moving straps (single shoulder design)
2022-09-223.2V 304Ah
2022-10-1218650 battery pack 12v
2023-06-251.5v Alkaline battery
2023-08-04NiMH No. 7 battery
2023-06-25lithium 3400mah 3.7v 18650 battery
2023-06-25batteries aaa
2023-06-25Parameter Interpretation of Lithium - Batteries
2025-02-18lithium 3400mah 3.7v 18650 battery.Blindly disassembling the battery causes the loss of ECU informat
2023-11-23Advantages of lithium iron phosphate battery
2022-12-07Cathode Materials for Cylindrical Lithium - ion Batteries
2025-03-07Types and Characteristics of Lithium Polymer Batteries
2024-12-03What standards need to be met for customized special low-temperature lithium batteries
2023-08-01What are the factors that affect the performance of lithium battery.portable energy storage battery
2023-04-10What are the core technologies of lithium battery pack Pack.lifepo4 lithium ion battery 48v 100ah
2023-04-03The production process of lithium battery.button cell battery cr1620
2023-07-18Decomposition of Causes of Explosion and Combustion of Lithium Batteries.lithium ion solar energy st
2023-10-07