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:2024-05-20 Hits: Popular:AG11 battery
What is the current status of industrialization technology research on NCA materials for 12V27A battery?
Current status of industrialization technology research on NCA materials
NCA precursor production process route
At present, there are three technical routes usually adopted by major domestic and foreign NCA manufacturers:
Among the above three processes, the Al element in the first and third solutions is added in the subsequent sintering or coating process. In this method, the Al element is unevenly distributed, and the Al content in the surface layer is high, forming an inert layer and reducing the capacity of the final product. At the same time, the process Complex and increased production costs. In the second option, the Al element can be evenly distributed, the product performance is better, the production process is simple, and the cost is low, but the preparation technology of the precursor is more difficult.
At present, the most mainstream technical route is the preparation process route of Ni1-x-yCoxAly(OH)2, such as Sumitomo of Japan and Toda of Japan, which have entered the mass production stage. This method generally uses sulfate as raw material, and uses sodium hydroxide and complexing agents to prepare Ni1-x-yCoxAly(OH)2, the precursor of Ni, Co, and Al co-precipitation, and then filtrate, wash, and dry it. product. The advantages of this process are low production cost, simple process, and more suitable for large-scale industrial production.
NCA sintering process route
The raw material lithium source of NCA usually uses lithium hydroxide. Since the sintering temperature of NCA cannot be too high, generally not exceeding 800°C, when lithium carbonate is used as the raw material, the thermal decomposition of lithium carbonate is incomplete, resulting in too much lithium carbonate remaining on the surface of the NCA. The surface is too alkaline and becomes more sensitive to humidity; at the same time, the melting point of lithium hydroxide is lower than that of lithium carbonate, which is more beneficial to the low-temperature sintering of NCA. However, because lithium hydroxide is highly volatile and has a strong irritating smell, it requires a well-ventilated production environment. The sintering atmosphere of NCA needs to be in a pure oxygen atmosphere to ensure that Ni2+ is oxidized into Ni3+. At the same time, due to the thermodynamic instability of Ni3+, the sintering temperature of NCA cannot be too low or too high. Currently, the optimal sintering temperature of NCA is 700~800℃.
Research status of NCA material modification technology
As the Ni% content in multi-component materials increases, the specific capacity of the material increases, but also brings more technical problems: cycle performance, especially high-temperature cycle performance issues, rate issues, safety issues, alkaline impurity content and the resulting The problem of strong water absorption (high moisture content). In response to these problems, in recent years, researchers have used a variety of anionic, cationic or multi-phase doping to stabilize the structure of high-nickel materials to improve cycle and storage performance. In addition, coating is also an effective method to prevent the electrolyte from corroding the cathode material and improve material circulation and storage stability. However, these methods cannot solve the problem of residual alkaline impurities in high-nickel materials, which is a key bottleneck for the industrialization and large-scale application of high-nickel materials.
Read recommendations:
Trichous lithium battery or lithium iron phosphate battery?
What is the difference between nickel -metal hydride battery and nickel -cadmium battery?energy stor
Popular recommendation
3.2v lifepo4 battery cell
2023-03-22522749 battery Processing
2023-03-22601435 lipo battery
2023-03-22601248 polymer battery company
2023-03-22601525 battery wholesaler
2023-03-22Alkaline D Battery LR20
2022-11-11R14
2023-03-27L822 32A/29A
2022-10-09Lithium Battery LQ12-100
2022-07-29702535 600MAH 3.7V
2023-06-1018650 800mAh 3.7V
2022-06-27LR03
2023-02-07521133 160MAH 3.7V
2023-06-12602248 600mAh 3.7V
2022-08-19803040 1000mAh 3.7V
2022-08-19AA Ni-MH batteries
2023-06-25LR621 battery
2023-06-25lithium lon battery energy storage system
2023-06-25902030 lipo battery
2023-06-2512v 18650 battery pack
2023-06-25What is the custom process of 18650 lithium batteries?48v 100ah lifepo4 battery pack
2023-03-28What are the effects of temperature changes on the charging and discharging of lithium batteries
2024-01-3118650 battery 3.7v 6000mah.Lithium battery waterproof grade
2023-10-11Characteristics and applications of lithium-ion batteries.18650 lithium ion battery 3.7v
2023-09-20What is the purpose of lithium-ion battery pack formation?
2024-03-01Summary and analysis of 18650 lithium battery pack technology
2022-12-17Speak the classification and composition of the electrolyte, and how to choose the battery pack corr
2023-02-11How to protect power lithium ion batteries in daily use.12v 50ah lifepo4 lithium battery pack
2023-03-28The characteristics of military dedicated lithium battery products are as follows
2023-02-16Cylindrical, square and flexible lithium batteries
2022-12-12