What are the advantages and disadvantages of power batteries and energy storage batteries

What are the advantages and disadvantages of power batteries and energy storage batteries

Main disadvantages: 1. Normal operating temperature range -15 ～ 40 ℃, poor high temperature performance; 2 The working voltage is low, and the working voltage range is 1.0 ～ 1.4V; 3. The price is more expensive than the lead -acid battery and nickel -metal hydride battery, but the performance is worse than the lithium ion battery. Scientists believe that the performance of lithium -air batteries is 10 times that of lithium ion batteries and can provide the same energy as gasoline. Lithium air batteries absorb oxygen charging from the air, so this battery can be smaller and lighter. Energy storage mainly refers to the storage of electrical energy. Energy storage is also a term in petroleum storage, representing the ability to store oil and gas in reservoirs. Energy storage itself is not an emerging technology, but from an industrial perspective, it has just appeared and is in its infancy.

Energy storage mainly refers to the storage of electrical energy. Energy storage is also a term in petroleum storage, representing the ability to store oil and gas in reservoirs. Energy storage itself is not an emerging technology, but from an industrial perspective, it has just appeared and is in its infancy.

So far, China has not reached the extent that the United States and Japan will treat energy storage as an independent industry and introduce a special support policy, especially under the premise that the lack of energy storage and payment mechanism, the energy storage industry The commercialization model has not yet taken shape.

Battery energy storage high -power occasions are generally used for lead -acid batteries, which are mainly used for storage of surplus energy of emergency power, battery cars, and power plants. You can also use dry batteries that can be charged repeatedly: such as nickel -metal hydride batteries, lithium -ion batteries, etc. This article follows the editor to learn about the advantages and disadvantages of nine battery energy storage.

The advantages and disadvantages of battery energy storage (Analysis of nine types of energy storage batteries)

1. Lead acid battery

Main advantages:

] 4. Suitable for floating charging, long service life, no memory effect;

5. Waste batteries are easy to recover, which is conducive to protecting the environment.

Main disadvantages:

1. Lower energy than energy, generally 30-40Wh/kg;

2. The service life is not as good as CD/NI batteries;

3. The manufacturing process is easy to pollute the environment and must be equipped with three waste treatment equipment.

2. Nickel -metal hydride battery

Main advantages:

1. Compared with lead -acid batteries, the energy density has greatly increased, the weight energy density is 65Wh/kg, the volume energy is energy, the volume energy DensityThere is an increase of 200Wh/L;

2. High power density, which can be charged at large currents;

, The mileage of the car is long;

2. The power density is high, which can be charged large current;

3, environmental protection, no pollution.

Main disadvantages:

1. The system is complex, the technical maturity is poor;

2. There are high requirements for sulfur dioxide. Due to serious domestic air pollution, domestic fuel cell vehicles have a short life.

6. Sodium sulfur battery

Advantage:

1. High -ratio energy (theory 760WH/kg; actual 390Wh/kg); High power (the density of the discharge current can reach 200 ～ 300mA/cm2);

3. The charging speedQuick (full 30min);

4. Life expectancy (15 years; or 2500-4500 times);

5. No pollution, recycling (NA, S recovery rate of nearly 100%)) 6. No self -discharge phenomenon, high energy conversion rate;

Insufficient:

1. High working temperature, the working temperature of 300-350 degrees, the battery work requires a certain amount of heating and insulation during work. , Start slow;

2. The price is expensive, 10,000 yuan/per degree;

3. Poor safety.

Seven, liquid flow battery (钒 battery)

Advantages:

Unlimited size;

3. There is a large charging and discharge rate;

4, long life, high reliability;

6. Fast charge and switching, only 0.02 seconds;

7. The site selection is not limited by the region.

Disadvantages:

1. Cross pollution of positive and negative electrolytes;

2. Some need to use expensive ion exchange membranes;

3 The volume of the two solutions is large, lower than the energy;

4. The energy conversion efficiency is not high.

Eight, lithium air batteries

Fatal defects:

Lithium lithium oxide (li2O) of solid reactions will be accumulated in the positive electrode, causing the contact between the electrolyte and the air to be blocked , Resulting in stopping discharge. Scientists believe that the performance of lithium -air batteries is 10 times that of lithium ion batteries and can provide the same energy as gasoline. Lithium air batteries absorb oxygen charging from the air, so this battery can be smaller and lighter. Many laboratories around the world are studying this technology, but if there is no major breakthrough, it may take 10 years to achieve commercial use.

9. Lithium sulfur batteries (lithium sulfur batteries are a high -capacity energy storage system with prospective development prospects)

Advantages:

Energy density can reach 2600Wh/kg;

2. The cost of raw materials is low;

3. Energy consumption is small;

4. Low toxic.

Although the research of lithium sulfur batteries has undergone decades and has achieved many results in the past 10 years, there is a lot of distance from the actual application.

A lithium Electric in ChongqingMaterials Co., Ltd., the company is engaged in the R \u0026 D, production, and sales of lithium -ion battery positive materials (including positive poles materials such as information electronics batteries, automotive power batteries and energy storage batteries). Two production lines have been completed and put into operation, with an annual production capacity of 2,400 tons. The lithium battery material crushing machines that need to be used in their production process are purchased from our company, and various accessories including production equipment are also provided by our company. You Mingke powder machinery provides not only equipment, but also high -quality after -sales service. Make a smooth operation of the equipment.

You Mingke adheres to the concept of performing social responsibilities and doing the concept of outstanding corporate citizens \u0026 rdquo; each device will donate 1,000 yuan of public welfare funds to rescue poverty -stricken children and families in difficult employees in mountainous areas. From the beginning to the end, Youmingke has adhered to this commitment and paid it in actual actions. The development of enterprises is inseparable from the strong support of the government and the people. Actively assume the responsibility of social welfare responsibilities is an important responsibility of the enterprise. It is an important manifestation of the company's return to all sectors of society and returning customers to provide support and trust for a long time.