AA batteries refer to AA batteries.

Battery classification:

1. Chemical battery

Chemical battery refers to the conversion of chemical energy of positive and negative active materials through electrochemical reactions. It is a type of electrical energy device. After long-term research and development, chemical batteries have ushered in a wide variety of applications and a wide range of applications. From huge devices that can only be accommodated in a building to species as small as millimeters. They are everywhere all the time. To serve our better life.

2. Dry batteries and liquid batteries?

The distinction between dry batteries and liquid batteries is limited to the period of early battery development. The earliest batteries consisted of a glass container filled with electrolyte and two It consists of two electrodes. Later, batteries based on paste electrolyte were introduced, also called dry batteries.

There are still "liquid" batteries. They are usually very large varieties. Such as those that are not Large stationary lead-acid batteries for intermittent power supply or lead-acid batteries used in conjunction with solar cells. For mobile devices, some use fully sealed, maintenance-free lead-acid batteries. This type of battery has been successfully used for many years, among which The electrolyte sulfuric acid is fixed by silicone gel or absorbed by the glass fiber separator.?

3. Disposable batteries and rechargeable batteries?

Disposable batteries are commonly known as "rechargeable batteries" Disposable batteries, because after their power is exhausted, they cannot be recharged and can only be discarded. Common disposable batteries include alkaline-manganese batteries, zinc-manganese batteries, lithium batteries, silver-zinc batteries, zinc-air batteries, and zinc-mercury batteries. Batteries and magnesium-manganese batteries.?

According to different manufacturing materials and processes, the common rechargeable batteries include lead-acid batteries, nickel-cadmium batteries, nickel-iron batteries, nickel-metal hydride batteries, and lithium-ion batteries. Among them The advantage is that they have a long cycle life. They can be fully charged and discharged more than 200 times. Some rechargeable batteries have a higher load capacity than most disposable batteries. When ordinary nickel-cadmium and nickel-hydrogen batteries are used, they have a unique memory effect, causing problems in use. Inconvenient, often causing premature failure.?

4. Fuel cell?

A fuel cell is a device that directly converts the chemical energy of fuel into electrical energy through electrochemical reactions?< /p>

5. Dye-sensitized solar cells

Dye-sensitized solar cells are mainly a new type of solar cell developed by imitating the principle of photosynthesis. Dye-sensitized solar cells use low-cost nano-titanium dioxide and photosensitive dyes as the main raw materials, simulating the use of solar energy by plants in nature for photosynthesis, and converting solar energy into electrical energy.

Extended information:

Battery purchase:

1. Purchase battery products and local famous brands with the "National Inspection-Free" and "Chinese Famous Brand" logos Battery products, the quality of these products is guaranteed.

2. According to the requirements of the electrical appliance, select the applicable battery type and size, and purchase the battery suitable for the electrical appliance according to the size and characteristics of the electrical appliance's power consumption.

3. Pay attention to the production date and shelf life of the battery, and buy batteries (new batteries). New batteries have good performance.

4. Pay attention to the appearance of the battery. You should choose a battery with exquisite packaging, neat and clean appearance, and no signs of leakage.

5. Pay attention to the logo of the battery. The battery trademark should indicate the name of the manufacturer, battery polarity, battery model, nominal voltage, trademark, etc.; the sales package (such as 2 heat shrinkable batteries or 4 heat shrinkable batteries) (shrunk, or hanging tag) should have the Chinese factory address, production date and shelf life or the deadline for the shelf life, and the number of the implementation standard (generally the national standard GB/T××××-××××).

Do not buy products without Chinese factory names, production dates and shelf life, or products that do not have shelf life deadlines or implementation standards. When purchasing alkaline zinc-manganese batteries, you should check whether the model number has the words ALKALINE or LR.

6. Since mercury in batteries is harmful to the environment, in order to protect the environment, you should choose batteries with the words "mercury-free", "0% mercury" and "no added mercury" on the trademark when purchasing. .

Reference materials:

Baidu Encyclopedia-Battery