The principle of dry battery and the important layout composition clarification

The principle of dry battery dry battery belongs to the primary battery in the chemical pole power supply. It is a kind of disposable battery. The carbon rod feels the positive electrode and the zinc cylinder is the negative electrode, which converts chemical energy into electrical energy to supply the external circuit. Because zinc is more vivid than manganese in chemical reverberation, zinc loses electrons and is oxidized, while manganese gains electrons and is reduced. Battery discharge is the electrolysis reaction of ammonia chloride and zinc. The released charge is conducted by graphite to the positive carbon rod. The electrolysis reaction of zinc will release hydrogen gas, which will increase the internal resistance of the battery. The manganese dioxide mixed with graphite is used to receive hydrogen. However, if the battery continues to work or is used for too long, the manganese dioxide will be too late or nearly saturated and unable to accept it. At this time, the battery will lose its use due to too much internal resistance and too little output current. But at this time, if the battery is heated or arranged for a period of time, the accumulated hydrogen gas inside it will be heated or sluggishly released, and the manganese dioxide will also be restored, and the battery will be vigorous again. The important layout of dry batteries is composed of ordinary dry batteries. Most of them are manganese-zinc batteries, with positive carbon rods in the middle, outsourcing the mixture of graphite and manganese dioxide, and a layer of fiber mesh on the outside. The fiber web is coated with a thick electrolyte paste, which consists of ammonia chloride solution and starch, and a small amount of preservatives. The outermost layer is a cylinder made of metal zinc, which is the negative electrode. Pain points of dry batteries ●Insufficient safety Dry batteries are chemical batteries. When the battery is almost exhausted, there will be some electrolyte inside the battery; in addition, the battery is not well wrapped, and when the electrolyte flows out, it will corrupt the electrical appliances. The battery rack even flows to the circuit board and damages the electrical appliances. ●The capacity of traditional dry batteries is generally not high. The battery capacity of alkaline dry batteries is about 1500mAh, the capacity of nickel-cadmium batteries for charging techniques is between 500-700mAh, and the sharper nickel-metal hydride rechargeable batteries are about 1200mAh. The black and white distinguishing essentials of dry batteries 1. Weigh dry batteries of the same brand and specifications on an electronic scale. A good quality battery is much heavier than a poor quality battery. For example, the AA battery in the alkaline battery generally weighs about 23 grams, and the AA battery generally weighs about 11 grams. The No. 5 carbon battery weighs about 16 grams, and the alkaline battery is obviously heavier than the carbon battery in the hand. 2. Look at the high-value dry batteries, which are generally alkaline batteries with relatively better quality. Don’t try to buy batteries from unlicensed and unlicensed vendors. These batteries are not only short-lived, but also have hidden dangers of leakage and pollution. 3. Check for dry batteries with good appearance. The packaging will indicate the trademark, manufacturer, battery model, nominal voltage, battery polarity, production date, shelf life, and implementation standard number, and the workmanship is exquisite, neat and clean, and there is no leakage environment. When purchasing, you can also check whether the merchandise is marked with no mercury, 0% mercury, and no mercury added. 4. Look at the logo Dry batteries are divided into alkaline and carbon. Alkaline dry batteries are marked with alkaline or ALKALINE, and carbon dry batteries are marked with carbon. Alkaline batteries are much higher than carbon batteries in terms of capacity, shelf life, and reliability. Dry batteries are primary batteries in chemical power sources and are a kind of disposable batteries. Because the electrolyte of this kind of chemical power supply device is an immobile paste, it is called a dry battery, which is related to a battery with a movable electrolyte. 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 article: What is the important reason why the lithium ion battery cannot be charged?