The classification of battery and the application of solar energy technology
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2022/10/08 11:34:04
The battery is an electrochemical device that stores chemical energy and releases electrical energy when necessary. It uses a lead substrate grid filled with spongy lead as a negative electrode, a lead substrate grid filled with lead dioxide as a positive electrode, and dilute sulfuric acid with a density of 1.26 -- 1.33g/mlg/ml as an electrolyte. When the battery is discharged, the metal lead is the negative electrode, and oxidation reaction occurs to produce lead sulfate; Lead dioxide is a positive electrode, and a reduction reaction occurs to form lead sulfate. When a battery is charged with direct current, lead and lead dioxide are formed at the two poles. After removing the power supply, it reverts to the state before discharge, forming a chemical battery. The battery can repeatedly charge, discharge, its single voltage is 2V, the battery is composed of one or more single battery, referred to as the battery, the most common is 6V, and other 2V, 4V, 8V, 24V battery. For example, the battery used on the car (commonly known as battery) is 6 batteries in series into 12V battery pack. On the traditional dry charge battery (such as automobile dry charge battery, motorcycle dry charge battery, etc.) in use for a period of time to supplement distilled water, so that dilute sulfuric acid electrolyte to maintain the density of 1.28g/ml or so; With regard to maintenance-free batteries, distilled water is no longer added until the end of their service life. According to the survey of conventional battery manufacturers in the market by Jiao Tong University Optical Valley Xiaobian:
Battery classification has different methods, the classification method can be generally divided into three categories of the first category: according to the type of electrolyte division includes: alkaline battery, electrolyte is important to potassium hydroxide solution based battery: such as alkaline zinc manganese battery (commonly known as alkaline manganese battery or alkaline battery), cadmium nickel battery, nickel metal hydride battery and so on. Acid battery, important to sulfuric acid aqueous solution as the medium, such as zinc manganese dry battery (some consumers also called acid battery), seawater battery; Organic electrolyte battery, important organic solution as the medium of the battery, such as lithium ion battery, lithium ion battery. The second category: according to the nature of the work and storage methods, including: a battery, also known as primary battery, that is, can not be recharged battery, such as zinc manganese dry battery, lithium primary battery, etc.; Secondary battery, rechargeable battery, such as nickel metal hydride battery, lithium battery, cadmium nickel battery, etc. Battery used to refer to lead-acid battery, is also a secondary battery; Fuel power cell, that is, the active material in the battery work only continuously from the outside to add the battery, such as hydrogen and oxygen fuel power cell; Storage battery, that is, battery storage is not directly in contact with the electrolyte, until the battery is used, before adding the electrolyte, such as silver magneside battery, also known as seawater battery. The third category: according to the positive and negative electrode materials used in the battery, including: zinc series battery, such as zinc manganese battery, zinc silver battery, etc. Nickel series battery, such as cadmium nickel battery, nickel hydrogen battery, etc.; Lead series battery, such as lead-acid battery, etc.; Lithium ion battery, lithium manganese battery; Manganese dioxide battery series, such as zinc manganese battery, alkali manganese battery, etc.; Air (oxygen) series battery, such as zinc empty battery, etc.
2. UPS battery
UPS is called uninterruptible power supply, because when the power failure, it can quickly convert to the inverter state, so as not to let the computer in use because of a sudden power failure did not have time to store and lose important files. It is not used as a backup power supply. If you only want to use electricity in the event of a power failure, you can only buy an inverter. General household UPS is mostly used in the maintenance-free lead-acid battery.
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