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:2024-06-04 Hits: Popular:AG11 battery
New breakthroughs made in research on cathode materials for nanometer super-capacity NiMH No.7 batteries
Electric vehicles will become an important green means of transportation in the future, and there is an urgent need to develop new high-capacity, high-stability and high-safety NiMH No.7 batteries. Scientists are also constantly trying various methods to improve the performance of NiMH No.7 batteries. Nanonization is a common method to improve the electrochemical properties of materials, especially for materials with low conductivity such as lithium iron phosphate, which has a significant improvement effect. The advantage of nanometerization is that the transmission path of lithium ions is shortened and better rate performance can be obtained. Compared with bulk materials, the disadvantages of nanometerization include the reduction of the binding energy of surface lithium and interface atoms, which will lead to a loss of capacity and a decrease in voltage; the large specific surface area after nanometerization will bring more active sites, a large number of The contact between the active sites and the electrolyte will also become an important factor affecting the charge and discharge stability of NiMH No.7 batteries; the reduction in tap density and energy density caused by nanotechnology is a problem that cannot be ignored in industrial production.
(A) Charge and discharge curves of 40nm LiFePO4 with ordinary carbon and super-capacity carbon; (B) Charge and discharge curves of 83nmLiFePO4 with ordinary carbon and super-capacity carbon; (C) Exposed LiFePO4 interface; (D) After reconstruction LiFePO4 interface (N represents the ordinary carbon coating method, E represents the super capacity carbon coating method)
In order to carry forward the advantages of nanotechnology and overcome its shortcomings, after three years of hard work, Professor Pan Feng's research group from the School of New Materials, Peking University Shenzhen Graduate School finally made an important breakthrough. They cleverly covered the surface of nano-lithium iron phosphate with a shell that can coordinate with the interface (C-O-Fe chemical bonds generated on the surface of lithium iron phosphate), which not only increased the binding energy of lithium ions on the surface, but also appeared additional lithium ion storage sites. Using the reconstructed nano-lithium iron phosphate material, when the average particle size is 42nm, the material capacity can reach 207mAhg-1, exceeding 21% of its theoretical capacity (170mAhg-1), so it is a new type of super-capacity nanocathode. Material. The material has good stability and can maintain 99% of its capacity after 1,000 cycles at 10°C.
(A) The effect of LiFePO4 particle size on capacity after reconstruction (black dots and blue dots are theoretical values, red dots are experimental values); (B-D) Ordinary carbon-coated and super-coated lithium iron manganese phosphate, lithium manganese phosphate and lithium cobalt phosphate. Charge and discharge curve of capacity package carbon
Through a combination of quantum chemical theoretical calculations and experiments, the team revealed the mechanism of nanometer super-capacity energy storage. This discovery is of great significance to the development of new nanometer energy storage materials. People can reconstruct the interface shell by designing coordination groups, not only It can achieve ultra-capacity energy storage and also improve the stability of nanomaterial applications. This work was recently published in NanoLetters (DOI: 10.1021/acs.nanolett.7b02315, impact factor 12.7, one of the natural publishing index journals), an excellent international journal in the field of materials. This work was completed under the guidance of Professor Pan Feng and in collaboration with Dr. Duan Yandong, Dr. Zhang Bingkai, Dr. Zheng Jiaxin and 2015 doctoral student Hu Jiangtao. Important collaborators in this work include Professor Khalil Amine and Professor Yang Ren of Argonne National Laboratory, Professors Lin-WangWang and Wanli Yang of Berkeley National Laboratory, and Professor Chong-MinWang of Pacific Northwest National Laboratory. This work was supported by the National New Energy Vehicle (Power Lithium Battery) Technology Innovation Project, the Guangdong Provincial Science and Technology Innovation Team Introduction Project, the Guangdong Provincial Natural Science Foundation, the Shenzhen Science and Technology Innovation Commission Fund, the U.S. Department of Energy, and the Shenzhen National Supercomputing Center .
Read recommendations:
Lithium iron phosphate battery is a new type of lithium battery with high promotion value.polymer li
Complete set of equipment for lithium battery production line
Last article:AAA Ni-MH batteries
Next article:1.2V NiMH batteries
Popular recommendation
residential energy storage battery wholesale
2023-05-1026650 battery wholesale
2023-03-22601848 battery Factory
2023-03-22521133 battery Processing
2023-03-22521133 lipo battery
2023-03-22Wireless bluetooth headphones
2022-09-22L1022 10A
2022-10-09Lithium-ion battery GN200 222wh
2022-08-23505060 2000mAh 7.4V
2022-08-19Lithium Battery GN60120
2022-08-19Lithium Battery GN4825
2022-08-19602248 600mAh 3.7V
2022-07-0116340 500MAH 3.7V
2022-10-15Street light energy storage battery GN-1260-NCM
2022-09-27Lithium Battery LQ12-150
2022-08-19D USB 1.5V 6000mWh
2022-06-27aa alkaline battery
2023-06-25AG5 battery
2023-06-25LR41 battery
2023-06-25battery 18650 genuine
2023-06-25Military vehicle power battery standard
2024-03-07Lithium battery steel shell/aluminum shell/cylinder/flexible packaging series
2022-12-14How to reduce the consumption of platinum metal in fuel power lithium battery
2022-11-04Air battery
2023-02-06Development of polymer lithium battery electrolyte technology
2024-04-08How to Take Explosion Proof Technical Measures for Explosion Proof Lithium Batteries.18650 battery 1
2023-09-04Lithium battery charging management
2022-12-10The production process of lithium battery.button cell battery cr1620
2023-07-18the service life of lithium iron phosphate battery?energy storage battery for solar system direct sa
2023-05-06Decomposition of Causes of Explosion and Combustion of Lithium Batteries.lithium ion solar energy st
2023-10-07