18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

1.2V NiMH battery

release time:2024-06-13 Hits:     Popular:AG11 battery

What is the principle of fast charging for electric vehicles? Will frequent use of fast charging damage the 1.2V NiMH battery?

 

At present, the mainstream charging methods for electric vehicles are divided into two types: AC slow charging and DC fast charging. If a low-power battery is regarded as a weak patient, then slow charging is like giving the patient steamed buns to eat, allowing him to digest the steamed buns and provide himself with energy; while fast charging is to inject glucose directly into the patient's veins to quickly restore his vitality. The basic principle of battery charging The battery on the electric vehicle is no different from our ordinary household dry batteries. Both output direct current. Charging the battery is a complicated process. It is not as simple as energizing the positive and negative poles. It involves professional current modulation issues, so a charger must be used to complete this part of the work. After obtaining electrical energy, the charger will modulate the appropriate current and voltage according to the current state of the battery, and then use it to charge the battery. The function of the charger is actually similar to the battery charger we used at home before. The speed of charging the same battery will be largely affected by the quality of the charger. What is AC slow charging? As we all know, the electricity used in cities is alternating current. In order to be able to use the city power supply directly for charging, each electric car will have its own on-board charger. It can convert AC into DC, modulate the appropriate current, and then charge the battery in three stages (similar to charging a mobile phone). In slow charging mode, the power supply or charging pile is just a simple power provider, without the need to undertake the task of modulating current and charging management, and the power is only treated as "raw materials" and handed over to the on-board charger for processing. Therefore, the structure of the slow charging pile is very simple and the volume is not large. In addition, many electric vehicles are equipped with household plugs, which can be directly plugged into household sockets for slow charging. AC slow charging can also make full use of charging during low power periods, reduce costs, and ensure stable voltage during charging periods. However, the disadvantages of slow charging are also obvious. That is, due to the limited capacity of the city's AC power supply and on-board charger, the charging current is very small, and it usually takes 5-10 hours to fully charge the battery. What is DC fast charging? We have learned before that there is an on-board charger on the electric car that is responsible for modulating the charging current, but unfortunately its efficiency is relatively low. So if we can bypass the on-board charger and directly charge the battery with a large current, wouldn't it be much faster? In fact, DC fast charging is achieved in this way. The DC fast charging pile itself is an off-board charger, and its current modulation capability is much stronger than that of the on-board charger. It can directly provide it with modulated high-current DC power according to the battery status. The fast charging pile will be connected to the car's CAN network. To put it simply, the charging pile makes itself temporarily part of the car's battery management system. Therefore, the fast charging pile not only provides power but also directly invades and takes over the charging management system on the car. Fast charging piles are often much larger in size, complex in structure, and more expensive, so their number is relatively small. However, fast charging is very fast, and charging can generally be completed within 12 minutes to 1 hour. The disadvantage of fast charging is that although the speed is fast, the utilization rate of electric energy is low (waste of electricity), and the high current will affect the life of the battery, and there are also certain safety hazards. Therefore, fast charging is often only used in emergency situations and cannot be used for a long time. This is like a person who still has to eat normally when he is not sick, instead of hanging glucose water every day to maintain life. In summary, the fast charging mode of electric vehicles is actually to temporarily replace the car's built-in charger with a powerful "plug-in", and directly provide the debugged high current to charge the battery according to the battery status. The advantage is fast speed, but the disadvantage is that it will affect the battery life and pose a safety hazard.


Read recommendations:

LR03

What is the core cost of lithium battery Pack.solar energy storage battery 10kwh 48v 100ah

Power Output of Lithium-Ion Batteries for Power Applications

lipo battery direct sales

18650 battery 2200mah

Last article:Nickel Hydride No. 5 battery

Next article:3.7V lipo battery

Popular recommendation

521133 battery Vendor

2023-03-22

551521 battery wholesaler

2023-03-22

connector for energy storage battery manufacturer

2023-05-10

16340 battery wholesaler

2023-03-22

Ni-MH battery packs direct sales

2023-03-22

402427 260mAh 3.7V

2022-07-01

801538 480MAH 3.7V

2023-06-10

Coin Battery CR 2025

2022-09-27

Ni-MH AAA1000mAh 1.2V

2022-07-01

603450 1200MAH 3.7V

2023-06-10

D USB 1.5V 6000mWh

2023-06-29

701224 145mAh 3.7V

2022-07-01

6LR61

2022-08-19

LR6

2022-12-07

26650 5000MAH 3.7V

2022-10-15

battery 18650 rechargeable

2023-06-25

3.7v 18650 battery pack

2023-06-25

18650 battery pack 12v

2023-06-25

18650 lithium ion battery

2023-06-25

18650 battery lithium ion 2200mah

2023-06-25

Lithium iron phosphate battery pack and ternary battery

2024-09-09

Research on sintering matching of crystalline silicon solar cells

2024-01-24

Lithium iron phosphate battery and ternary lithium battery advantages and disadvantages.cabinet type

2023-04-14

lithium 3400mah 3.7v 18650 battery.Lithium titanate battery

2023-12-08

Standard for lithium batteries for military use

2024-06-11

What are the core technologies of lithium battery pack Pack.lifepo4 lithium ion battery 48v 100ah

2023-04-03

Lithium Power Battery Science Research.CR2032 button cell battery

2023-07-12

Tusame Lithium Battery Maintenance.18650 battery bulk

2023-06-28

What is the cascade utilization of lithium iron phosphate batteries?18650 battery 1800mah

2023-08-26

How can polymer batteries adapt to different temperature environments?18650 battery 3.7v 6000mah

2023-08-23
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP