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
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

Other information

Home  >  Other information

NiMH battery pack

release time:2024-12-11 Hits:     Popular:AG11 battery

Analysis of International Power Storage Technology - NiMH battery pack

 

I. Technical Principle

 

Lithium-ion batteries are divided into two categories: liquid lithium-ion batteries (LIBs) and polymer lithium-ion batteries (PLBs). It uses lithium-containing compounds as positive electrodes, such as binary or ternary materials such as lithium cobalt oxide (LiCoO2), lithium manganese oxide (LiMn2O4) or lithium iron phosphate (LiFePO4); the negative electrode uses lithium-carbon intercalation compounds, such as graphite, soft carbon, hard carbon, lithium titanate, etc.; the electrolyte is composed of lithium salts dissolved in organic carbonates. Its working principle is shown in Figure 6. When charging, lithium atoms become lithium ions and migrate to the carbon pole through the electrolyte. After the carbon pole combines with external electrons, it is stored as lithium atoms. The whole process is reversible when discharging.

 

Compared with other traditional batteries, lithium-ion batteries have the advantages of high specific energy, high rated voltage, strong high current discharge capacity, high power tolerance, and low self-discharge rate. Its specific energy (200Wh/kg) is about 5 times that of lead-acid batteries, the single-cell operating voltage is 3.7V or 3.2V, the cycle life can reach 3000~5000 times in shallow charge and discharge mode, and the energy storage efficiency can reach more than 90%. However, lithium-ion batteries have poor overcharge/discharge resistance, complex combination and protection circuits, and relatively high costs compared to traditional batteries such as lead-acid batteries. These factors restrict the application of lithium-ion batteries in the field of large-scale power and energy storage batteries. With the development of new energy vehicles, renewable energy and distributed power station technologies, the application of lithium-ion batteries in new energy vehicles, renewable energy access and small distributed power stations has received more and more attention.

 

2. Key technologies

 

Electrode materials are important key technologies for lithium-ion batteries, which are closely related to battery cost and performance. Cobalt-acid lithium-ion batteries have been abandoned for high-power and high-capacity applications due to their expensive materials and poor safety. Lithium manganate batteries have the advantages of low cost and high performance, and their product safety is higher than that of lithium cobalt oxide batteries. They are a popular alternative technology for electric vehicle batteries. Lithium iron phosphate batteries have a relatively stable oxidation state, good safety performance, good high temperature performance, and are non-toxic, pollution-free, with a wide range of raw material sources and low prices. They are currently one of the most popular electric vehicle battery technologies and one of the popular candidate technologies for power energy storage systems. Regarding lithium-ion batteries for large-scale energy storage, the key technologies also include battery system overall design technology, battery system integration and grouping technology, battery pack testing technology, etc.

 

3. Application Status

 

The concept of lithium-ion batteries was proposed in the 1960s, when Bell Labs developed a carbon anode that could replace lithium metal electrodes, making this idea a reality. Since Sony successfully commercialized lithium-ion batteries in 1991, lithium-ion batteries have been widely used in the field of electronic products. In recent years, with the development of materials and battery technology, the application of lithium-ion batteries in electric vehicles, energy storage batteries, and other fields has received more and more attention. At present, Sony, Sanyo (which has merged with Panasonic), Nissan AESC, Samsung SDI and LG Chem in Japan are vigorously developing lithium-ion manganese oxide batteries. In 2008, A123 in the United States took the lead in developing a 2MW lithium-ion energy storage battery, and Altair Nanotechnologies has established a 1MW/250kWh trailer-type lithium-ion battery energy storage system. At present, there are about 18MW lithium-ion battery energy storage systems connected to the grid in the world for engineering demonstration or grid services. Chinese companies represented by BYD, Lishen, and BAK have actively invested in the research and development and production of lithium-ion batteries and have made good progress. During the Shanghai World Expo, the State Grid Corporation built a 100kW lithium-ion battery demonstration system connected to the grid. The Zhangbei National Wind Power Monitoring and Research Center, hosted by the State Grid Corporation Electric Power Research Institute and invested by the National Development and Reform Commission, plans to use 18MW lithium-ion batteries to test the use of energy storage for wind farm power generation and its grid access. The Southern Power Grid has built a 4MW lithium-ion battery energy storage demonstration power station, whose important function is to shift peaks and fill valleys.

 

IV. Development Trends

 

In the research of lithium-ion batteries, it is important to improve the performance of battery electrodes and electrolytes by controlling the size, composition, structure and morphology of particles. In the research of electrode materials, it is important to combine with carbon coating technology to reduce electrochemically active materials to submicron or smaller sizes to achieve core-shell electrodes. Other new technologies, including nano-alloy negative electrode lithium-ion batteries, silicon-based lithium-ion batteries, organic electrode material lithium-ion batteries, and lithium-air batteries have also emerged.


Read recommendations:

Coin Battery CR 1625

Is the voltage of lithium battery packs the same?

What Are the Lithium Battery Certification Systems

18650 battery pack wholesaler

18650 battery 3.7v 6000mah

Last article:Ni-MH battery pack

Next article:Ni-MH batteries

Popular recommendation

household energy storage lithium battery maker

2023-05-10

602030 battery Manufacturing

2023-03-22

601248 polymer battery

2023-03-22

32700 battery manufacture

2023-03-22

solar power energy storage battery manufacture

2023-05-10

Coin Battery CR 1220

2022-09-27

501825 180MAH 3.7V

2023-06-12

701221 120mAh 3.7V

2022-07-01

Coin Battery CR 2354

2022-09-27

701224 145mAh 3.7V

2022-08-19

602535 500mAh 3.7V

2022-08-19

18650 1200mAh 3.7V

2022-06-20

R20

2023-03-27

Lithium Battery LQ-1236

2022-08-19

Alkaline AAA Battery LR03

2022-11-11

3.7v 2200mah 18650 lithium battery

2023-06-25

li ion 18650 battery pack

2023-06-25

1.2V NiMH battery

2023-06-25

3.7v 18650 battery pack

2023-06-25

18650 lithium ion battery cell

2023-06-25

Lithium battery application common sense

2024-04-10

Open circuit voltage and resistance of lithium batteries.3.7 volt 18650 lithium battery

2023-07-07

Innovative Breakthroughs in High-Energy-Density Lithium Batteries

2024-11-06

What is the difference between lithium battery protection board and BMS (battery management system)?

2023-05-08

Precautions for the operation of marine lithium iron phosphate batteries

2024-07-24

Advantages and disadvantages of lithium iron phosphate battery

2022-12-01

Characteristics of lithium-ion batteries.401030 battery

2023-07-03

Is the lithium iron phosphate battery resistant to low temperature?48v 200ah home energy storage bat

2023-03-28

22000mAh High Muting Rate Drone Battery.lifepo10 battery for solar energy storage direct sales

2023-05-06

Lithium battery tram.CR1130 battery

2023-07-03
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