九九热精品在线视频丨www久久久久久丨91视频中文字幕丨日本妇人成熟免费中文字幕丨中文字幕人妻a片免费看丨99无码精品二区在线视频丨日本狂喷奶水在线播放212丨亚洲成av 人片在线观看无码丨偷偷操不一样的久久丨4438xx亚洲最大五色丁香软件丨国产福利高清在线视频丨中文字日产幕乱码免费丨日韩国产高清一区二区丨精品国产一区二区三区四区在线看丨后进式无遮挡啪啪摇乳动态图丨人妻丰满熟妇ⅴ无码区a片丨五月天狠狠操丨欧美疯狂性受xxxxx另类丨欧美少妇xx丨二区视频在线丨国产成人无码a区在线视频无码dvd丨久久成人国产精品丨婷婷亚洲五月丨免费一级大片丨婷婷综合另类小说色区

The composition and structure of aluminum foil used for electrolysis are exquisite. For example, for anode foil, high purity is no longer required and is required to be as high as possible. In order to improve the initial corrosion point, mechanical strength, and performance of the dielectric oxide film, the foil should contain some impurities, and some alloy foils should be used.

Structurally, for low-voltage foils, a large proportion of cubic structures are not required, but for high-voltage foils, this structure is required to account for over 80% -90%. For cathode foil, in order to improve its specific capacity, alloy aluminum foil with irregular grain orientation and certain impurity content is required. The working electrolyte consists of three components: solvent, solute, and additive. For example, an electrolyte that has been used for a long time is composed of ethylene glycol, glycerol, boric acid, and ammonia.

With the development of Aluminum electrolytic capacitor, this electrolyte can no longer meet the requirements, so many new electrolytes have been produced to reduce the operating temperature range of the capacitor (such as -55 ℃ -125 ℃). The formula principles for these new electrolytes are:

① Mix two solvents to achieve complementarity.

② Two weak acids are used to provide the required two anionic groups.

③ Add alkali, such as organic amines, adjust the pH value and flash voltage of the electrolyte to change its resistivity.

④ Additives that improve the characteristics of electrolytes, such as phosphoric acid or its salts that prevent the hydration of alumina membranes, and dinitrobenzene that absorbs hydrogen gas. Ethylene oxide increases the flash voltage of the electrolyte.