Classification of batteries:
1, chemical battery
Chemical battery refers to a device that converts the chemical energy of positive and negative active substances into electrical energy through electrochemical reaction. After long-term research and development, chemical batteries have been widely used. This is a huge device, which can accommodate a building, as small as millimeters. It serves our beautiful life all the time.
2. Dry batteries and liquid batteries?
The distinction between dry batteries and liquid batteries is limited to the early battery development period. The earliest battery consisted of a glass container filled with electrolyte and two electrodes. Later, batteries based on paste electrolyte were introduced, also called dry batteries.
There are also "liquid" batteries. Generally, they are very large varieties, such as large fixed lead-acid batteries used as uninterruptible power supply or lead-acid batteries used in conjunction with solar cells. For mobile equipment, some lead-acid batteries are fully sealed and maintenance-free, which have been successfully used for many years, and the sulfuric acid in the electrolyte is fixed by silica gel or absorbed by glass fiber partition.
3. Disposable batteries and rechargeable batteries?
Disposable batteries are commonly known as "disposable" batteries, because they can't be charged, and they can only be discarded after use. Common disposable batteries include alkaline manganese battery, zinc-manganese battery, lithium battery, silver-zinc battery, zinc-air battery, zinc-mercury battery and magnesium-manganese battery.
Rechargeable batteries are usually lead-acid batteries, nickel-cadmium batteries, nickel-iron batteries, nickel-hydrogen batteries and lithium-ion batteries. Their advantages are long cycle life and can be fully charged and discharged for more than 200 times. Some rechargeable batteries have higher load capacity than most disposable batteries. The unique memory effect of ordinary nickel-cadmium and nickel-hydrogen batteries in use often leads to inconvenience and premature failure.
4. Fuel cell?
Fuel cell is a device that directly converts the chemical energy of fuel into electric energy through electrochemical reaction?
5. Dye-sensitized solar cells
Dye-sensitized solar cell is a new type of solar cell developed mainly by imitating the principle of photosynthesis. Dye-sensitized solar cells use low-cost nano titanium dioxide and photosensitive dyes as main raw materials, and use solar energy to simulate photosynthesis of plants in nature and convert solar energy into electric energy.
Extended data:
Battery selection:
1. Buy battery products marked with "National Inspection Exemption" and "China Famous Brand" and local famous brand battery products. The quality of these products is guaranteed.
2, according to the requirements of electrical appliances, choose the appropriate battery type and size, and according to the size and characteristics of electrical power consumption, choose and buy batteries suitable for electrical appliances.
3. Pay attention to the production date and shelf life of the battery, and buy a battery (new battery) with good performance.
4, pay attention to check the appearance of the battery, should buy beautifully packaged, neat appearance, clean, no signs of leakage of battery.
5, pay attention to the battery logo, battery trademark should indicate the manufacturer's name, battery polarity, battery model, nominal voltage, trademark, etc. ; Sales packaging (such as 2 shrink films or 4 shrink films, or tag) should have Chinese address, production date and shelf life, or indicate the effective period of the shelf life and the number of the implementation standard (generally GB/T GB/T×××××××××).
Don't buy products without Chinese factory name, production date and shelf life, shelf life and implementation standards. When buying alkaline Zn-Mn batteries, it depends on whether the model has the words alkaline or LR.
6. Because the mercury in the battery is harmful to the environment, in order to protect the environment, batteries marked with the words "no mercury", "0% mercury" and "no added mercury" should be selected when purchasing.
References:
Baidu encyclopedia-battery