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A Battery Is A Device That Directly Converts Chemical Energy Into Electrical Energy Jun 04, 2018

A battery is a device that directly converts chemical energy into electrical energy. It is a rechargeable battery designed to achieve recharging through reversible chemical reactions. It usually refers to a lead-acid battery. It is a type of battery that belongs to the secondary battery. battery. Its working principle: the external electric energy is used to regenerate the internal active materials during charging, and the electric energy is stored as chemical energy. When the electric discharge is needed, the chemical energy is converted into the electric energy output again, such as the mobile phone battery commonly used in life.

It uses a lead substrate grid (also called a grid) filled with spongy lead as a negative electrode, a lead substrate filled with lead dioxide as a positive electrode grid, and dilute sulfuric acid having a density of 1.26--1.33 g/mlg/ml as an electrolyte. When the battery is discharged, the metal lead is a negative electrode, an oxidation reaction occurs, and lead sulfate is generated; lead dioxide is a positive electrode and a reduction reaction occurs to generate lead sulfate. When the battery is charged with direct current, elemental lead and lead dioxide are generated at the two poles, respectively. After removing the power supply, it returns to its pre-discharge state and forms a chemical battery. Lead-acid batteries can be repeatedly charged and discharged. Its single-unit voltage is 2V. A battery is a battery pack consisting of one or more monomers, referred to as a battery for short. The most common is a 6V battery, and other 2V, 4V, 8V, and 24V batteries. . For example, a battery used in a car (commonly referred to as a battery) is a battery pack in which 6 lead batteries are connected in series of 12V.

For traditional dry-charged lead-acid batteries (such as dry-charged batteries for automobiles, dry-charged batteries for motorcycles, etc.), distilled water should be added after use for a period of time to keep the diluted sulfuric acid electrolyte at a density of about 1.28 g/ml; for maintenance-free batteries, Use until the end of life no longer need to add distilled water.