How to test the battery charging and discharging?

During the charging and discharging process of the battery, when the battery passes a certain amount of electricity, a certain amount of substances are generated and disappeared in the electrode plate and electrolyte. The more power that passes through, the greater the capacity of the battery. Conversely, the smaller the amount of power passed, the smaller the battery capacity. This means that the capacity of a lead-acid battery depends on the amount of active material participating in the chemical reaction. The most effective way to increase the number of active substances participating in chemical reactions is to have a large plate area. Due to the increase in the area of u200bu200bthe electrode plate and the larger connection area of u200bu200bthe electrolyte, the battery capacity is larger, which increases the volume of the battery. Therefore, the larger the battery volume, the larger the capacity. In the process of battery discharge, the active material lead dioxide of the positive electrode and the active material metal lead of the negative electrode both react with the sulfuric acid electrolyte to produce lead sulfate. This reaction is called the double sulfation reaction in electrochemistry. At the end of the battery discharge, the lead sulfate converted into the positive and negative active materials is a kind of crystalline material with loose structure and fine crystals, with a very high degree of activity. During the charging process of the battery, the loose and dense lead sulfate on the positive and negative electrodes will become lead dioxide and metallic lead again under the use of external charging current, and the battery will be in a fully charged state again. It is this reversible electrochemical reaction that enables the battery to store and release electrical energy. The capacity of the battery is determined by the increase in the area of u200bu200bthe plate and the area of u200bu200bthe electrolyte. The reversed chemical reaction can realize the battery. The function of storing and releasing electric energy. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Changes in lithium battery capacity and analysis of lithium battery detection methods