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:2024-11-07 Hits: Popular:AG11 battery
Introduction to the "penetration war" of liquid cooling technology in AG3 battery thermal management system
Abstract: At present, air cooling still accounts for a large proportion of electric vehicle power AG3 battery cooling methods, but as the electric vehicle market puts forward higher demands on performance such as cruising range, energy density, AG3 battery capacity, and charging rate, liquid cooling technology will gradually become a priority solution for major automakers. Domestic and foreign automakers including BMW, Tesla, GM, Chevrolet, Geely, BMW Brilliance, BAIC, GAC, Yundu, Xiaopeng Motors, Singularity Motors, etc. are all introducing liquid cooling technology in AG3 battery thermal management systems.
Liquid cooling technology is gradually replacing traditional air cooling and becoming the mainstream choice for electric vehicles of major automakers.
Recently, the JAC New Energy iEV6E sports version was officially launched, and its independently developed liquid cooling AG3 battery control technology was also used in micro electric vehicles for the first time.
According to reports, the liquid cooling technology equipped in this model can stably control the AG3 battery temperature within a suitable range of 15-35℃, and the vehicle can be used normally at an ambient temperature of -30℃ to 55℃. At the same time, this technology also ensures that the failure of a single AG3 battery will not cause the AG3 battery pack to catch fire or explode, ensuring the AG3 battery life, fast charging performance, low temperature performance and safety performance.
Coincidentally, Buick's VELITE6 PHEV, which will be launched this year, also uses an independent liquid cooling system at the cell level. It is understood that each single cell in the VELITE6 AG3 battery pack can be circulated through the cooling plate to dissipate heat, ensuring that the temperature difference of each cell is within 2 degrees Celsius.
What is liquid cooling technology? It is to use the large heat capacity of the coolant and the ability to take away the excess heat of the AG3 battery system through circulation to achieve the optimal operating temperature conditions of the AG3 battery pack.
It is understood that in addition to the above two car companies, domestic and foreign car companies including BMW, Tesla, GM, Chevrolet, Geely, Brilliance BMW, BAIC, GAC, Yundu, Xiaopeng Motors, Singularity Motors, etc. are all introducing liquid cooling technology in AG3 battery thermal management systems.
A senior executive of a large pack company said: "In the early days, liquid cooling technology was rarely used, mainly because the market was dominated by A00-class models, which did not have high performance requirements and did not use liquid cooling technology due to cost issues; this year's subsidy policy focuses on batteries with long driving range and high energy density, and AG3 battery heating is becoming more and more serious. While ensuring the performance of the whole vehicle, it is also necessary to ensure certain acceleration performance, so liquid cooling technology has become the mainstream choice."
Data shows that active liquid cooling technology is expected to account for 55% of the power AG3 battery cooling system assembly in 2022; by model, liquid cooling technology for power AG3 battery cooling systems of plug-in hybrid models will account for 85%, and liquid cooling technology for power AG3 battery cooling systems of pure electric models will account for 44%.
▌The inevitable choice of high-energy, high-rate batteries
According to the different media for heat transfer, AG3 battery cooling systems can be divided into: air cooling, direct cooling and liquid cooling.
Air cooling is mainly divided into natural cooling and forced cooling (using fans, etc.), with low-temperature air as the medium. This technology was widely used in early electric passenger cars, such as Nissan Leaf and Kia SoulEV. Its obvious problems are slow cooling speed, low efficiency and poor internal temperature uniformity.
Direct cooling uses refrigerant direct cooling. It uses the principle of latent heat of evaporation of refrigerant (R134a, etc.) to establish an air conditioning system in the vehicle or AG3 battery system, install the evaporator of the air conditioning system in the AG3 battery system, and the refrigerant evaporates in the evaporator and quickly and efficiently removes the heat from the AG3 battery system. At present, the cooling method through direct cooling is basically used in electric passenger cars, the most typical of which is BMW i3 (i3 has two cooling solutions: liquid cooling and direct cooling). Although its cooling speed is fast, its temperature uniformity is poor.
Liquid cooling is to remove the heat generated by the AG3 battery and reduce the AG3 battery temperature through liquid convection heat exchange. The medium is mainly conductive liquids such as water. Liquid cooling is the preferred solution for many electric passenger cars at present. Typical products at home and abroad include BMW i3, Tesla, GM Volt, Brilliance BMW Zinoro, and Geely Emgrand EV. However, it should be noted that liquid cooling technology has high requirements for sealing, requires closed liquid pipelines, and has a complex structure.
Compared with other cooling technologies, liquid cooling technology has a high heat transfer coefficient and fast cooling speed, which has a significant effect on reducing the maximum temperature and improving the consistency of the AG3 battery pack temperature field; at the same time, the volume of the thermal management system is relatively small.
Industry insiders believe that the proportion of air cooling in the cooling method of electric vehicle power batteries is still relatively large, but as the electric vehicle market puts forward higher demands on performance such as cruising range, energy density, AG3 battery capacity, and charging rate, liquid cooling technology will gradually become the priority solution for major automakers.
Read recommendations:
LR1130 battery.Preparation and process flow of 18650 lithium-ion battery
Popular recommendation
lithium battery for energy storage Manufacturing
2023-05-1018650 battery cell
2023-03-22502030 battery Manufacturing
2023-03-22lifepo4 18650 battery
2023-03-22402427 polymer battery company
2023-03-22LR14
2022-07-01186095 6000mAh 7.4V
2022-08-23505060 2000mAh 7.4V
2022-08-196F22
2023-02-18R03P
2022-08-19Elastic sports armband
2022-09-22R14
2022-07-01Coin Cell BR 1225
2022-10-15Lithium-ion battery GN200 222wh
2022-08-23Coin Battery CR 1225
2022-09-2718650 battery 2200mah
2023-06-25lithium polymer battery 10000mah
2023-06-25CR2477 battery
2023-06-2518650 2200mah battery
2023-06-25CR2354 battery
2023-06-25The principle of ternary polymer lithium-ion batteries
2024-05-27Characteristics of lithium battery separator
2022-11-23Ternary Material Lithium-Ion Batteries
2024-12-06Cycle Life of Lithium - Ion Batteries
2025-03-22Reasons for the decrease in lithium battery capacity.LR726 battery
2023-06-13What are the advantages of soft pack lithium batteries that are popular?lithium 3400mah 3.7v 18650 b
2023-08-23Wet recovery of lithium iron phosphate batteries.R03 Carbon battery
2023-08-21Introduce how to use lithium -ion battery protection board.LR626 battery
2023-06-1418650 lithium battery 3.7 v.Which is better, 18650 lithium battery or polymer lithium battery?
2023-10-13High temperature safety analysis of lithium battery.CR2032 button cell batteries
2023-06-08