What industry does the battery belong to?

Storage battery belongs to manufacturing industry.

Battery is a device that directly converts chemical energy into electrical energy. It is a rechargeable battery, which can be charged by reversible chemical reaction. Usually refers to lead-acid battery, which is a kind of battery and belongs to secondary battery. Its working principle: when charging, external electric energy is used to regenerate the internal active substances, and the electric energy is stored as chemical energy, and when it needs to be discharged, the chemical energy is converted into electric energy for output again, such as mobile phone batteries commonly used in life.

Battery manufacturing: refers to the manufacture of chemical power supply with a certain nominal voltage and rated capacity, which is made of positive active material, negative active material and dielectric in a sealed structure. Including disposable, non-rechargeable, rechargeable and reusable dry cells, storage batteries and devices that convert hydrogen and oxygen into electric energy, that is, the manufacture of fuel cells and solar cells that convert sunlight into electric energy.

: 1. Relationship between internal resistance and capacity: The relationship between internal resistance and capacity of storage battery has two meanings:

The relationship between battery internal resistance and rated capacity, and the relationship between battery internal resistance and SOC of the same model. More than ten years ago, people tried to use the change of internal resistance (or conductance) of VRLA battery to detect the battery capacity and predict the battery life online, but failed. People put forward higher and higher requirements for the high-current discharge capacity of power batteries, which requires reducing the internal resistance of the batteries as much as possible. Therefore, this paper will further explore and clarify the internal relationship between internal resistance and capacity of some commonly used batteries.

2. Valve control seal

At present, the valve-controlled sealed lead-acid battery has gradually replaced the open-ended flowing electrolyte lead-acid battery, and is widely used in post and telecommunications power supply, UPS, energy storage power supply system and so on. Power valve-regulated sealed lead-acid batteries have been widely used in electric mopeds. All these fields need to detect the state of charge of batteries online.

3. Relationship between battery internal resistance and state of charge.

State of charge (SOC) of a battery refers to the ratio of its discharge capacity to its rated capacity. These data are very important for the post and telecommunications power supply system and the power battery pack in use.

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