What are the types of dry batteries?

Dry batteries are a kind of batteries that are commonly used in daily life, as well as simple batteries. Dry batteries are generally 1.5V and can be used in a variety of electrical appliances. Dry battery is a voltage battery that uses absorbents (such as wood chips or gelatin) to make the contents into a non-porous paste. It is often used as a power source for flashlights, radios, etc. When using dry batteries, do not dissect them, and do not burn or bake dry batteries on a fire. The following is a detailed analysis of the voltage scale of dry-type batteries and the types of dry-type batteries. What is a dry cell? Dry cell is a chemical battery that uses a paste electrolyte to generate direct current (wetbattery is a chemical battery that uses a liquid electrolyte to generate direct current). It is roughly divided into primary batteries and secondary batteries. They are used in daily life A commonly used battery, and a simple battery. They can be used in many appliances. What is the voltage of a dry cell? Generally, the voltage of a dry cell is 1.5V, and the current is related to the load, which follows Ohm's law Iu003dU/R. Working principle of dry cell Zinc-manganese dry cell is a dry cell commonly used in daily life. Anode material: MnO2, graphite rod anode material: zinc plate electrolyte: NH4Cl, ZnCl2 and starch paste. The battery symbol can be marked as (-)Zn|ZnCl2, NH4Cl (paste) ‖ MnO2|C (graphite) (+) Negative electrode: Znu003dZn2++2e cathode: 2MnO2+2NH4++2eu003dMn2O3+2NH3+H2O. The total reaction: Zn+2MnO2+2NH4+u003dZn2++Mn2O3+2NH3+H2O. The electromotive force of zinc manganese dry battery is 1.5V. Due to the adsorption of NH3 gas by graphite, the electromotive force decreases rapidly. If the high-conductivity pashyKOH is used instead of NH4Cl, the cathode material is changed to the steel tube, and the aggregate layer is close to the steel tube to form an alkaline zinc-manganese dry battery. Because the battery has no gas to react, the internal resistance is low, and the electromotive force is 1.5v, which is more stable. Dry battery belongs to the primary battery in chemical power supply and is a kind of disposable battery. It uses manganese dioxide as the positive electrode and the zinc cylinder as the negative electrode to convert chemical energy into electrical energy for use by external circuits. Since zinc is more active than manganese in chemical reactions, zinc loses electrons and is oxidized, while manganese gets electrons and is recycled. Commonly used dry battery types, the scale comparison table is flat head, which means that the positive electrode of the battery is flat and has no protruding parts. The battery cell is used for spot welding of the battery pack. Generally, the top of the same type (which can be used as a single battery) is 0.5mm more in height. . and many more. I will not analyze them one by one. However, when many batteries are impolite, the important types of AAA, AA, A, SC, C, D, N, F are usually scored in the top third, 2/3, 1/2, 2/3, 4, 5. , 5/4, 5 on the 7th, these scores indicate the corresponding height of the cell body, such as two-thirds AA marks the height is usually two-thirds of the AA battery rechargeable battery; another example is 4/5a, which represents the battery The average height is 4/5. Type and scale of lithium battery (1) Cylindrical lithium battery: usually represented by 5 digits, the first two digits indicate the diameter of the pool, and the last three digits indicate the height of the pool. For example, 14500 refers to AA batteries, which have a diameter of about 14mm and a height of about 50mm. Common types: 14500, 14650, 17490, 18500, 18650, 26500. Standard types of ordinary bick and sanyo cylindrical batteries: Bick186502200mAh3.7v, Bick186502600mAh3.7v, Bick186502000mAh3.6v Long life Sanyo 186502100mAh3.7v, Sanyo 186502500mAh3.7v, Sanyo 186501500mAh3.7v18650 (2) square lithium battery: usually has six numbers The mark indicates that the thickness, width and height are respectively the battery, in millimeters, such as 103450 which is 10 (thickness) 34 (width) × 50 mm (height). If the thickness value is greater than the width value, it should be *0.1 thickness, for example, 433861 is 4.3(43*0.1)××61mm. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Case analysis of car battery failure