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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 .
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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:2024-04-16 Hits: Popular:AG11 battery
The main components and functions of the new energy vehicle battery 18650 rechargeable thermal management system
The main components and functions of the new energy vehicle battery 18650 rechargeable thermal management system. The power battery 18650 rechargeable is the energy source of the battery 18650 rechargeable car. During the charging and discharging process, the battery 18650 rechargeable itself will generate a certain amount of heat, which will cause the temperature to rise. The temperature rise will affect many characteristic parameters of the battery 18650 rechargeable. The battery 18650 rechargeable thermal effect will also affect the performance and performance of the entire vehicle. Cycle life, so good thermal management is very important for battery 18650 rechargeable performance and life.
The main components of the new energy vehicle battery 18650 rechargeable thermal management system
The main task of the battery 18650 rechargeable management system is to ensure that the battery 18650 rechargeable pack operates within a safe range, provide the necessary information required for vehicle control, respond promptly when abnormalities occur, and determine the battery 18650 rechargeable charge and discharge power based on ambient temperature, battery 18650 rechargeable status, vehicle needs, etc. wait. The main functions of BMS include battery 18650 rechargeable parameter monitoring, battery 18650 rechargeable status estimation, online fault diagnosis, charging control, automatic equalization, thermal management, etc.
The new energy vehicle battery 18650 rechargeable thermal management system is mainly composed of heat transfer medium, measurement and control unit and temperature control equipment. After the heat-conducting medium comes into contact with the battery 18650 rechargeable pack, the heat generated in the battery 18650 rechargeable system is dissipated to the external environment through the flow of the medium. The heat-conducting medium mainly includes three categories: air, liquid and phase change materials. The measurement and control unit controls the temperature control equipment to perform corresponding heat treatment by measuring the real-time temperatures at different locations of the battery 18650 rechargeable system, battery 18650 rechargeable modules and even cells.
Thermal management system is one of the key technologies to deal with the heat-related problems of the battery 18650 rechargeable and ensure the performance, safety and life of the power battery 18650 rechargeable. On the one hand, it can absorb the bulging stress of the battery 18650 rechargeable and play a buffering role. On the other hand, it can play a heat insulation role. In the event of thermal runaway of the battery 18650 rechargeable core, it can inhibit heat diffusion and delay the occurrence of accidents. Some companies are already using aerogel for heat insulation between square batteries, which is very safe, but there is a very real cost problem.
Main functions of new energy vehicle battery 18650 rechargeable thermal management system
1. Effectively dissipate heat when the battery 18650 rechargeable temperature is high to prevent thermal runaway accidents;
2. Preheat when the battery 18650 rechargeable temperature is low to increase the battery 18650 rechargeable temperature to ensure charging and discharging performance and safety at low temperatures;
3. Reduce the temperature difference within the battery 18650 rechargeable pack, inhibit the formation of local hot zones, prevent the battery 18650 rechargeable from decaying too quickly at high temperature locations, and reduce the overall life of the battery 18650 rechargeable pack.
Accurate measurement and monitoring of battery 18650 rechargeable temperature; effective heat dissipation when the battery 18650 rechargeable pack temperature is too high; rapid heating under low temperature conditions; ensuring uniform distribution of the battery 18650 rechargeable pack temperature field; matching of the battery 18650 rechargeable heat dissipation system with other heat dissipation units is also the main function of battery 18650 rechargeable thermal management .
Thermal-related issues of batteries are key factors that determine their performance, safety, lifespan and cost of use. The temperature level of a lithium battery 18650 rechargeable directly affects its energy and power performance during use. When the temperature is low, the available capacity of the battery 18650 rechargeable will rapidly decay. Charging the battery 18650 rechargeable at too low a temperature may cause instantaneous voltage overcharge. This can cause internal lithium deposition and cause a short circuit.
As new energy vehicles begin to be used on a large scale, the performance of the battery 18650 rechargeable system will undergo more tests. Judging from the current situation, solving the above problems requires the optimization of the battery 18650 rechargeable design system in conjunction with new materials. Optimization of system structure layout and control strategy are all possible methods. Efficient and intelligent thermal management systems will be the goal of future development and are of great significance to the safety of new energy vehicles.
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