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:2024-08-06 Hits: Popular:AG11 battery
Researchers discover new copolymer binder that can extend the life of lithium batteries
It is well known that the charge capacity of lithium batteries in smartphones decreases after more than a year of use, and the life of the phone may be reduced, which indirectly leads to economic losses and pollution. In addition, the short life of lithium batteries also hinders the development of renewable energy recycling and electric vehicle markets. Therefore, scientists have been working hard to find ways to increase the life of lithium batteries.
One of the key reasons why the capacity of lithium batteries decreases over time is the degradation of the widely used graphite anode (i.e., the negative electrode of the battery). The anode and electrolyte (the medium that carries the charge between the positive and negative electrodes of the battery) and the cathode (or the positive electrode of the battery) provide a good environment for the electrochemical reactions of the battery's charge and discharge cycles. However, in order to prevent fission when using graphite, a binder must be added to the graphite. The most widely used binder today is polyvinylidene fluoride (PVDF), but it has disadvantages and is far from an ideal material.
To solve the above problems, a research team at the Hokuriku Advanced Institute of Science and Technology (JAIST) reportedly invented a new binder made of a diimino-naphthoquinone-p-phenylene (BP) copolymer. First, the BP binder provides better adhesion and mechanical stability to the negative electrode than the PVDF binder. This is partly due to the supposed π-π interactions between graphite and the bis-imino-naphthoquinone groups, as well as the excellent adhesion between the copolymer ligands and the battery's copper current collector. Second, the BP copolymer is more conductive than PVD and provides a thinner, less resistive conductive solid electrolyte interface. Third, the BP copolymer does not react easily with the electrolyte, greatly preventing degradation.
As experiments have shown, the BP copolymer can also greatly enhance battery performance. JAIST Professor Noriyoshi Matsumi said: "The half-cell using PVDF as a binder was only 65% of the original capacity after about 500 charge and discharge cycles, while the half-cell using BP copolymer as a binder still showed 95% of the capacity after 1,700 charge and discharge cycles.
The half-cell using BP copolymer showed extremely high and stable coulombic efficiency, which also proves that the battery is long-lasting and durable. Coulombic efficiency refers to the ratio of the battery's discharge capacity to the charge capacity during the same cycle. The research team used electron microscopy to photograph the binder before and after the cycle. The photos show that only small cracks appeared on the BP copolymer, while large cracks appeared on the PVDF binder at less than one-third of the total number of cycles.
Both the experimental and theoretical results of this study will provide new methods for designing durable lithium batteries, which will have far-reaching environmental and economic effects. As Professor Matsumi said: The creation of durable batteries will help develop more reliable and long-lasting products, thereby encouraging consumers to buy expensive battery products such as electric vehicles that can be used for a long time.
Professor Matsumi also added that the development of long-lasting batteries will benefit many people, such as those with heart disease and others who rely on artificial organs. In addition, the general population will benefit from this as the number of daily charging devices such as laptops, tablets and smartphones increases. Other developments in electrode binders are also expected to enable scientists to produce longer-lasting battery products, thereby achieving a greener future.
Read recommendations:
Why does the 18650 lithium battery pack bring a protective board.48v solar power energy storage powe
Popular recommendation
residential energy storage battery manufacture
2023-05-10energy storage system lithium battery wholesale
2023-05-10lithium battery for solar energy storage system price
2023-05-1026650 battery Factory
2023-03-22Ni-MH batteries sales
2023-03-2218650 1500mAh 3.7V
2022-08-19Moving straps (single shoulder design)
2022-09-2218650 1800mAh 3.7V
2022-08-19Business laptop bag
2022-09-22Rack-mounted energy storage battery GN-5120
2022-09-27LR20
2022-07-01Coin Battery CR 1212
2022-09-27Lithium Battery GN72100
2022-08-19Ni-MH AA1500mAh 1.2V
2022-07-01801538 480MAH 3.7V
2023-06-10801620 battery
2023-06-25402030 battery
2023-06-25LR1121 battery
2023-06-2518650 battery 2000mah
2023-06-2518650 battery pack 12v
2023-06-25The basic concept of soft pack lithium battery and lithium battery pack and aluminum shell lithium b
2024-03-253.2v 30ah lifepo4 battery cell.Power lithium batteries gradually reach production capacity, and lith
2023-10-17Want to know where is the advantage of ternary lithium batteries?solar energy storage lithium ion ba
2023-03-10AG Coin battery application
2022-06-18Preparation method of Lithium iron phosphate battery.lithium battery 18650
2023-07-24What are the characteristics of high-voltage lithium batteries?CR1625 battery
2023-08-19Will Cold Weather Reduce the Performance of Lithium Batteries.6LR61 alkaline battery
2023-08-24Industrial instrument Lithium battery manufacturer customization
2023-02-18Storage methods for lithium batteries.6LR61 alkaline battery
2023-09-22AG2 battery.How to purchase 18650 lithium batteries
2023-10-11