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:2024-09-28 Hits: Popular:AG11 battery
High Energy Density Lithium Battery Technology
High energy density lithium battery technology is currently a research hotspot and key development direction in the field of lithium batteries. The following are some related technologies:
1. Improvement of positive electrode material :
-High nickel ternary materials: High nickel ternary materials (such as NCM811, NCA, etc.) have high specific capacity and high voltage platform, which can significantly improve the energy density of lithium batteries. By optimizing the synthesis process of materials, improving their crystal structure and surface properties, the performance stability and safety of high nickel ternary materials can be enhanced. For example, high nickel ternary materials with uniform particle size and high crystallinity can be prepared by coprecipitation, sol gel and other synthesis methods; By means of surface coating, doping, and other methods, the cyclic performance and thermal stability of materials can be improved.
-Rich lithium manganese based materials: Rich lithium manganese based materials have ultra-high specific capacity, theoretically reaching over 300mAh/g, making them a very promising high-energy density positive electrode material. However, rich lithium manganese based materials have problems such as low initial charge discharge efficiency and voltage decay. The current research focus is on improving the performance of lithium rich manganese based materials by optimizing their composition, structure, and preparation processes. For example, methods such as element doping and surface modification can improve the electrochemical performance of lithium rich manganese based materials; By compounding with other materials such as ternary materials, carbon materials, etc., the conductivity and stability of the material can be improved.
2. Innovation in Negative Electrode Materials :
-Silicon based negative electrode material: The theoretical specific capacity of silicon is as high as 4200mAh/g, far higher than traditional graphite negative electrode materials (372mAh/g), making it an ideal negative electrode material for improving the energy density of lithium batteries. However, silicon undergoes significant volume expansion (about 300%) during the charging and discharging process, leading to electrode structure damage and affecting the cycling performance of the battery. To solve this problem, researchers have adopted various methods, such as preparing silicon nanowires, silicon carbon composite materials, silicon oxygen composite materials, etc. These materials can effectively alleviate the volume expansion of silicon and improve the cycling performance and stability of negative electrode materials. For example, silicon nanowires have one-dimensional nanostructures that can provide space for the volume expansion of silicon while improving the conductivity of the material; Silicon carbon composite materials combine silicon with carbon materials, utilizing the good conductivity and flexibility of carbon to suppress the volume expansion of silicon.
-Metal lithium negative electrode material: Metal lithium is an ideal negative electrode material with the highest theoretical specific capacity (3860mAh/g) and the lowest electrode potential. However, metallic lithium is prone to forming lithium dendrites during the charging and discharging process, leading to battery short circuits and posing safety hazards. At present, researchers use methods such as solid-state electrolytes, three-dimensional current collectors, and surface modifications to suppress the growth of lithium dendrites and improve the safety and cycling performance of metal lithium negative electrode materials. For example, solid electrolytes can prevent the formation of lithium dendrites in liquid electrolytes, improving the safety of batteries; Three dimensional current collectors can provide a uniform electric field for the deposition of metallic lithium and suppress the growth of lithium dendrites.
3. Optimization of Electrolytes:
-Solid state electrolyte: Solid state electrolyte has high safety, good mechanical strength, and high ion conductivity, and is one of the key technologies for achieving high energy density lithium batteries. At present, researchers are developing various types of solid electrolytes, such as polymer solid electrolytes, inorganic solid electrolytes, composite solid electrolytes, etc. Polymer solid electrolytes have good flexibility and processability, but low ionic conductivity; Inorganic solid electrolytes have high ionic conductivity and mechanical strength, but are brittle; Composite solid electrolytes combine the advantages of polymers and inorganic solid electrolytes, and have good comprehensive performance. For example, combining polymers with inorganic solid electrolytes can improve the ion conductivity and mechanical strength of solid electrolytes while maintaining good flexibility.
-High voltage electrolyte: In order to improve the energy density of lithium batteries, it is necessary to increase the operating voltage of the battery. However, traditional electrolytes can decompose at high voltages, affecting the performance and safety of batteries. Therefore, developing high-voltage electrolytes is an important way to improve the energy density of lithium batteries. High voltage electrolytes require high oxidation stability, good conductivity, and low viscosity. At present, researchers are improving the high-voltage performance of electrolytes by using new solvents, additives, and other methods. For example, using fluorinated solvents, sulfone solvents, and other solvents with high oxidation stability can improve the high pressure resistance of electrolytes; Adding additives such as ethylene carbonate (VC) and fluorinated ethylene carbonate (FEC) can form a stable SEI film on the electrode surface, improving the cycling performance and safety of the battery.
Read recommendations:
18650 battery 3.7v 2000mah.Classification of 18650 lithium batteries
What are the fields of lithium ion battery?powerwall home lithium ion battery
Last article:R6 Carbon battery
Next article:NiMH battery packs
Popular recommendation
lithium ion battery 18650 price
2023-03-22402427 battery Manufacturing
2023-03-22801620 battery manufacture
2023-03-22solar energy storage battery manufacture
2023-03-22702535 battery manufacture
2023-03-22Lithium Battery LQ-1218
2022-08-19502030 200mAh 3.7V
2022-07-01L822 32A/29A
2022-10-09Coin Battery LR 41
2022-10-15Lithium Battery GN6050
2022-08-19LR14
2022-07-01501825 180mAh 3.7V
2022-07-01Rack-mounted energy storage battery GN-192V 100Ah
2022-09-27Coin Battery CR 1216
2022-09-27601435 270MAH 3.7V
2023-06-12803040 lipo battery
2023-06-25LR626 battery
2023-06-25CR2032 battery
2023-06-25batteries 9v
2023-06-253.7v 3000mah 18650 battery
2023-06-25AG Coin battery application
2022-06-18AG Coin foot battery
2022-06-18Cylindrical lithium battery
2024-03-08Lithium battery conductivity
2024-07-02Lithium power battery daily maintenance.18650 battery 3.7v 6000mah
2023-07-12Which is better, lithium manganate or ternary lithium battery?
2022-11-26Will the polymer lithium battery make a simple blasting?
2023-02-23What is a coiled battery?lithium ion battery cells 18650
2023-09-19Why does the 18650 lithium battery pack bring a protective board.48v solar power energy storage powe
2023-03-28AG1 battery.What is the process for customizing 18650 lithium-ion battery packs?
2023-10-13