Lead-acid power battery is an important energy storage component, which is indispensable in the mechanical system of energy storage. It is the driving force behind the continued development of energy industries such as home batteries, electric vehicles and solar power. Therefore, it is of great practical significance to understand and master the structure, working principle and maintenance of lead-acid power battery. This paper introduces several lead-acid power batteries from its structure, working principle, use and maintenance:

First of all, lead-acid power battery is a typical electrochemical energy storage equipment. Its structure is mainly composed of electrolyte and multiple lead-acid batteries. The electrolyte is composed of potassium hydroxide (KOH) solution, and the concentration of the general electrolyte is between 28% and 30%. The most important component of the battery pack is its battery core, which is composed of multi-layer insulating material, lead-acid liquid, anode and cathode. The anode is responsible for the leading of the forward current, and the cathode is responsible for the export of the reverse current. The two-sided whole is integrated by the insulation material, which can form a small shell, effectively prevent the leakage of the electrolyte outside and inside the battery, and the shell also has a certain supporting effect. It can maintain the integrity and balance of the materials inside the battery.

Then, the working principle of lead-acid power battery is based on the structure and characteristics. It is a kind of rechargeable battery, which can absorb the electric energy from the external power source into chemical energy when the battery capacity is sufficient. When the external energy is consumed, the chemical energy in the battery can be converted into electric energy and released. During battery charging, the anode of the battery produces lead hydroxide, oxygen and electrons during a chemical reaction at the charging point. When these substances migrate to the cathode due to the reaction, because the cathode's potential will be lower than the anode, it can receive energy from the external power supply, so as to achieve the purpose of electric energy conversion between the anode and the cathode, get the battery charging. When the battery is discharged, lead hydroxide and oxygen from the cathode are returned to the anode, creating an electron cycle that allows the battery to provide external energy.

Then, there are a number of factors to consider when using lead-acid power batteries, and each battery type has its own specific requirements. In the use of lead-acid power battery, the most important thing is to use the type of cell suitable for their own refrigeration conditions, choose a higher degree of quality assurance cell, to ensure that the battery has higher charging ability and durability, in order to optimize the battery life. For example, general electric vehicle battery, are used lead acid power battery, are required to be charged as soon as possible after each use, in order to extend the life of the battery. In addition, in the process of use, try to avoid the long time discharge of the battery, which will affect the stability of the battery.

Finally, the maintenance of lead-acid power batteries is also very important. Lianhong has always focused on battery accessories, supporting related business, in the field of safety, convenience, maintenance of automotive battery, industrial battery has a deep accumulation of technology and practical technology patents. More about battery maintenance knowledge, please pay attention to the dynamics of our official website：www.hblhnykj.com