偷偷要一区二区三区中文字幕,一道精品视频一区二区三区男同,最新韩国三级激情高潮无遮挡,国产成人亚洲综合久久剧情

Jinma will tell you about the introduction and working principle of the battery
update time:2018-01-08 hit count:615次

A battery is a device that directly converts chemical energy into electrical energy.   It is a rechargeable battery designed to be recharged through a reversible chemical reaction.   It usually refers to a lead-acid battery.   It is a kind of battery and belongs to secondary batteries.  Battery.  Its working principle: when charging, it uses external electrical energy to regenerate the internal active material, and stores the electrical energy as chemical energy.

It uses a lead substrate grid filled with spongy lead (also known as a lattice) 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 is used as the electrolyte.  When the battery is discharging, metal lead is the negative electrode, which undergoes an oxidation reaction to generate lead sulfate; lead dioxide is the positive electrode, which undergoes a reduction reaction to generate lead sulfate.   When the battery is charged with direct current, elemental lead and lead dioxide are formed at the two poles, respectively.   When the power source is removed, it returns to its pre-discharge state, forming a chemical battery.  The lead-acid battery can be repeatedly charged and discharged.  Its cell voltage is 2V.  The battery is a battery pack composed of one or more cells, referred to as battery.  The most common one is 6V, and the others include 2V, 4V, 8V, 24V battery.  For example, the battery used in the car (commonly known as the battery) is a battery pack of 6 lead-acid batteries connected in series to form a 12V battery.

For traditional dry-charged lead batteries (such as automobile dry-charged batteries, motorcycle dry-charged batteries, etc.), distilled water should be added after a period of use to keep the dilute sulfuric acid electrolyte at a density of about 1.28g/ml; for maintenance-free batteries, its No need to add distilled water until end of life.

Click to refresh
临泉县| 科技| 惠安县| 蕉岭县| 元谋县| 芦溪县| 阳高县| 乌拉特后旗| 弥渡县| 南丰县| 西丰县| 富民县| 盐山县| 同江市| 合作市| 曲麻莱县| 汶川县| 定陶县| 洛川县| 清远市| 无为县| 桃园市| 莱州市| 师宗县| 繁峙县| 冕宁县| 曲周县| 江油市| 广水市| 文化| 嘉义县| 宁波市| 涟源市| 永平县| 肃宁县| 逊克县| 乌兰浩特市| 开化县| 密云县| 东山县| 东乡县|