A car battery is a type of battery that works by converting chemical energy into electricity. Generally speaking, the battery is a lead-acid battery. That is, a battery mainly made of lead and its oxide, and the electrolyte is a sulfuric acid solution. The structure of the automobile lead storage battery is mainly composed of a positive (negative) electrode plate, a separator, an electrolyte, a tank shell, a connection bar, and a pole post.
Ordinary battery The plates of ordinary batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; its disadvantages are lower specific energy (ie, the energy stored per kilogram of battery), short service life, and frequent daily maintenance.
Dry-charge battery Its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has a high power storage capacity. In a completely dry state, it can save the obtained power within two years. When used, it only needs to add electrolytic Liquid, wait for 20-30 minutes before use.
Maintenance-free battery Due to its structural advantages, the maintenance-free battery consumes very little electrolyte, and basically does not need to replenish distilled water during its service life. It also has the characteristics of shock resistance, high temperature resistance, small size and small self-discharge. The service life is generally twice that of ordinary batteries. There are also two types of maintenance-free batteries on the market: the first one does not require maintenance during the use of the electrolyte when it is purchased at one time (adding a replenishment solution); the other is that the battery itself is already filled with electrolyte and sealed , Users can not add replenishment at all.
It is a device that converts chemical energy into electrical energy. It belongs to a DC power supply and its functions are: (1) When starting the engine, provide a strong starting current (about 10A) to the starter.
(2) When the generator is overloaded, it can assist the generator to supply power to the electrical equipment.
(3) When the engine is idling, power is supplied to the electrical equipment.
(4) The battery is also a large-capacity capacitor, which can protect the electrical appliances of the car.
(5) When the voltage at the generator terminal is higher than the electromotive force of the lead storage battery, a part of the electrical energy is converted into chemical energy for storage, that is, charging.
Lead-acid battery products are mainly the following, and their uses are distributed as follows: Starting battery: mainly used for starting and lighting of automobiles, motorcycles, tractors, diesel engines, etc .;
Fixed battery: mainly used for communication, power plants, computer systems as protection, automatic control standby power;
Traction battery: mainly used for power sources of various battery vehicles, forklifts, forklifts, etc .;
Railway battery: Mainly used for power of railway diesel locomotive, electric locomotive, passenger car starting and lighting
Storage battery for energy storage: It is mainly used for electric energy storage such as wind and solar power generation.