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:
New type sodium ion battery comes out
402030 battery.Range of charging voltage for lithium iron phosphate battery packs
Last article:Information contained in lithium battery discharge curves
Next article:Lithium battery sharing three major core functions of BMS
Popular recommendation
802540 battery company
2023-03-22601435 battery wholesaler
2023-03-22Nickel Hydride No. 5 batteries
2023-03-2216340 battery manufacturer
2023-03-223.2v 100ah lifepo4 battery
2023-03-22Coin Cell BR 2032
2022-10-15AA
2022-07-22801752 720mAh 3.7V
2022-08-19Lithium Battery GN4830
2022-08-19R14
2023-03-27Lithium-ion battery GN500
2022-07-29R14
2022-07-01801752 720MAH 3.7V
2023-06-10522749 880mAh 3.7V
2022-07-01505060 2000MAH 7.4V
2023-06-1018650 battery cell
2023-06-25LR1121 battery
2023-06-25no 5 alkaline battery
2023-06-25Nickel Hydride No. 5
2023-06-25NiMH No. 7
2023-08-04The Price of Prismatic Lithium - ion Batteries
2025-03-05What are the advantages of lithium batteries?
2024-03-12Lithium - Ion Batteries for Tablets
2025-04-11Lithium - Ion Battery Energy Storage Systems
2025-05-07Battery pack nominal voltage and output voltage range
2023-02-08The main category of power batteries.lithium 3400mah 3.7v 18650 battery
2023-06-17LR03 battery.Introduction to the production process of 18650 lithium-ion battery pack
2023-10-13How to charge lithium iron phosphate batteries correctly?502030 battery
2023-08-19What kind of battery does mobile low -temperature device need?convenient energy storage power supply
2023-05-08The correct way to charge lithium batteries.button cell battery cr2025
2023-09-15