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:2023-02-07 Hits: Popular:AG11 battery
Capacity attenuation failure:
"When the standard cycle life test, the discharge capacity of the loop reaches 500 times should not be less than 90%of the initial capacity. Or the discharge capacity should not be lower than the initial capacity of the initial capacity when the number of cycles reaches 1,000 times." Inside, the phenomenon of sharp decline in capacity is a capacity attenuation failure. The root cause of battery capacity attenuation is the failure of the material, and it is closely related to objective factors such as battery manufacturing process and battery use environment. From the perspective of material, the main causes of failure are the structural failure of the positive electrode material, the transition growth of the negative surface SEI, the electrolyte division and the deterioration, the stream corrosion, and the trace impurities of the system.
The structure of the positive electrode material fails:
The failure of the positive material structure includes the crushing of the positive material particles, the transformation of the irreversible phase, and the disorderly material. The Limn2O4 will cause the structure to disturb the structure due to the Jahn-Teller effect during the charging and discharge process, and even the particle crushing will occur, causing the electrical contact between the particles to fail. Limn1.5NI0.5O4 Materials will change during the charging and discharge process. The transformation of the "square crystal system-cubic crystal system" will occur. Due to the transition from the LI transition from the charging and discharge process , Restrict its capacity play.
The negative electrode material fails:
The failure of graphite electrode occurs mainly on the surface of graphite, the surface of the graphite is reacted with the electrolyte, and the production of solid electrolyte interface (SEI). If it is excessively growing, it will cause the lithium ion content in the battery internal system to decrease, and the result is the capacity attenuation. The failure of silicon negative materials is mainly due to its huge volume expansion.
Electrolytic liquid failure:
The stability of LIPF6 is poor, and it is easy to decompose to reduce the li+content in the electrolyte. It is also easy to generate HF with trace reactions in the electrolyte, causing corrosion inside the battery. Poor gas tightness causes the electrolyte deterioration, and the electrolyte viscosity and chromaticity change, which eventually leads to a sharp decline in transmission of ionic performance.
Faculture of the collector:
The streaming of the stream and the aggregation of the collector decrease. The HF generated by the failure of the electrolytes will cause corrosion to the collector and generate a compound with poor conductivity, causing an increased contact or active substance to fail. During the charging process, the CU foil is dissolved under the low potential and deposited on the positive pole surface. This is the so -called "analysis copper". The common form of a collection of streams is that the binding force between the stream and the active object is not enough to cause the active substance to peel off, and it cannot provide a capacity for the battery.
Internal resistance increases:
The internal resistance of lithium batteries is accompanied by failure such as decreased energy density, voltage and power decrease, and battery production. The main factors that lead to an increased internal resistance in lithium -ion battery are divided into key materials and battery use environment.
Key materials for battery: micro -cracks and crushing of positive electrode materials, destruction of negative materials and excessive surface SEI, electrolyte aging, active substances from the flowing of the streaming body, the difference in contact with the active material and conductive additives (including the loss of conductive additives), the loss of electrical additives), The diaphragm shrinking hole is blocked, and the battery polar ear welding is abnormal.
Battery use environment: excessive environmental temperature, overcharge, high power charging, manufacturing process and battery design structure.
Read recommendations:
Application field of lithium iron phosphate batteries.powerwall lifepo4 battery for solar system
Lithium Ion Battery.1.5V rechargeable battery
Last article:Information contained in lithium battery discharge curves
Next article:Lithium battery sharing three major core functions of BMS
Popular recommendation
Nickel Hydride Batteries maker
2023-03-22battery for solar energy storage Processing
2023-05-10803040 polymer battery company
2023-03-22NiMH battery packs manufacture
2023-03-22lithium battery energy storage price
2023-03-22Lithium Battery GN12-50
2022-08-19802540 800mAh 3.7V
2022-08-19Lithium Battery GN72120
2022-08-19Li-ion 18650 3500mAh 3.7V
2022-06-20503759 1200mAh 11.1V
2022-08-19Ni-MH AA1000mAh 1.2V
2022-07-0114250 280MAH 3.7V
2022-10-15R20
2023-02-1818650 2500mAh 3.7V
2022-06-20Lithium-ion battery GN-300
2022-09-27LR1121 battery
2023-06-25CR2032 button cell batteries
2023-06-25LR721 battery
2023-06-25801620 battery
2023-06-25li ion 18650 battery pack Manufacturing
2023-06-25Lead-acid batteries
2023-02-03Power battery separator.18650 lithium battery 2600mah
2023-08-11Lithium Battery Safety Performance Testing Technology
2025-07-29Advantages and disadvantages of lithium battery
2022-11-16Deadly Disadvantages of Graphene Batteries
2024-12-03LR44 battery.Technical overview of 18650 lithium-ion battery
2023-10-13The thermal stability of lithium -ion battery and overcharge, high temperature and short -circuit sa
2023-03-24How to check the battery loss of 18650 lithium battery pack.Column rechargeable battery
2023-10-13Working principle of electric humidifier
2022-11-11Lithium power battery charging method.lithium polymer battery 10000mah
2023-07-11