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:2023-03-24 Hits: Popular:AG11 battery
Lithium ion batteries are mainly composed of negative electrode materials, electrolytes and positive poles. The chemical activity of the litter of the negative material is close to the metal lithium during charging state. The SEI membrane on the surface at high temperature is decomposed. The lithium ion and electrolytic solution, and the adhesive polar vinyl of the graphite will react to a large amount of heat.
Electrolytic solution is generally adopted by alkyl carbonate organic solution, which is flammable. The positive electrode material is usually a transition metal oxide. It has strong oxidation properties during charging. It is easy to decompose oxygen at high temperature. The oxidation and electrolytes released by the release of the oxygen and electrolytes are released, and a large amount of heat is released.
Therefore, from the perspective of materials, lithium -ion batteries have strong danger, especially when abuse, safety issues are more prominent.
1. Analysis of thermal stability of lithium -ion battery material
The fire risk of lithium -ion batteries is mainly determined by chemical reactions in the inside of the battery. The fire risk of lithium -ion batteries depends on the thermal stability of the battery material, and the thermal stability of the battery material depends on the chemical reactions between the internal parts. At present, people mainly use the differential scanning heat meters (DSC), thermal analyzer (TGA), thermal heating acceleration heat meter (ARC), etc. to study the thermal stability of battery -related materials.
1 The influencing factors of the thermal stability of the negative pole material:
The starting temperature of the maintenance of the negative material increases with the increase of the particle size.
Use DSC to study the thermal stability of the lithium -embedded natural graphite of different particles. It was found that there were three hot peaks in all samples. The first peak of the sample was located near 150 ° C. The position of the latter two peaks was obviously different. The start temperature of the latter two peaks increased with the size of the particle size. The study showed that the first split peak was the decomposition of the SEI membrane, and the latter two hot peaks reaches the reaction of lithium graphite with PVDF and electrolyte.
The relationship between the surface area and thermal stability of graphite materials was studied with ARC. It was found that when the surface area of graphite materials increased from 0.4 square meters/gram to 9.2 square meters/gram, the reaction rate increased by two orders of magnitude. Therefore, the reaction rate of carbon negative materials increases with the increase of the surface area.
Read recommendations:
The advantages of lithium iron phosphate battery.lifepo16 battery for solar energy storage Processin
How to ensure the consistency of the 18650 battery pack?button cell battery cr1620
Last article:What are the advantages of lithium iron phosphate battery manufacturers.lithium ion solar energy sto
Next article:The characteristics of lithium ion battery.solar energy storage lifepo4 battery 24v 200ah
Popular recommendation
14500 battery Manufacturing
2023-03-22521133 polymer battery company
2023-03-22energy storage system lithium battery wholesaler
2023-05-10Nickel Hydride Batteries Factory
2023-03-22solar energy battery storage system Processing
2023-05-1018650 1000mAh 3.7V
2022-06-2018650 800mAh 3.7V
2022-06-27701224 145mAh 3.7V
2022-07-01Lithium Battery GN4830
2022-08-19801738 450mAh 3.7V
2022-06-27602030 300mAh 3.7V
2022-08-19LR20
2022-11-22801538 480MAH 3.7V
2023-06-10LR14
2022-12-07LR20
2022-07-01602535 polymer battery
2023-06-25li ion 18650 battery pack
2023-06-251800mah 18650 battery
2023-06-25battery 18650
2023-06-25AA NiMH battery
2023-08-04Slow-Charge Lithium Batteries
2024-10-18Lithium Battery Detection Methods
2024-11-14The Heart of Lithium Battery Portable Electronic Devices
2024-06-26Internal Resistance of Square - shaped Lithium - ion Batteries
2025-03-08The main advantages of lithium batteries
2024-04-22Five advantages of lithium iron phosphate battery
2023-03-06What are the main materials for lithium battery manufacturers?lifepo4 solar panel energy storage sys
2023-03-23Is it better to use a lithium battery for forklifts or a lead -acid battery?
2023-03-06Battery maintenance.18650 lithium battery cells
2023-08-12National standard for lithium batteries.18650 lithium battery 2600mah
2023-07-10