Determination of specific surface area of ​​batteries and battery materials

The surface area of ​​the battery material is also very important. The specific surface area detection data of the negative electrode material of the battery is only true when the result is detected by the BET method. At present, the specific surface area test at home and abroad adopts the multi-point BET method, which is developed at home and abroad. The specific surface area measurement standards are based on the BET test method. Please refer to China's national standard (GB / T 19587-2004)-The method of measuring the specific surface area of ​​solid materials by the principle of gas adsorption BET. The measurement of specific surface area is actually a time-consuming task. Due to the different adsorption capacity of the sample, the test of some samples may take a whole day. If the test process is not fully automated, then the tester ca n’t leave at all times. A high degree of concentration, observing the instrument panel, manipulating the knob, and a little inattention will lead to the failure of the test process, which will waste a lot of precious time of the tester. Only truly fully automated intelligent specific surface area tester products can meet the international standards of the test instrument industry. All similar international products are fully automated. Manually operated instruments have long been eliminated abroad. A truly fully automated intelligent specific surface area analyzer product frees testers from repeated mechanical operations, greatly reducing their work intensity, training is simple, and working efficiency is improved. The truly fully automated intelligent specific surface area analyzer product greatly reduces errors caused by human operations and improves test accuracy. The F-Sorb 2400 specific surface area tester of Beijing Jine Spectrum Technology Co., Ltd. is an instrument that can truly realize the detection function of the BET method (both with direct comparison method), and more importantly, the F-Sorb 2400 specific surface area test of Beijing Jine Spectrum Technology Co., Ltd. The instrument is the only fully automated and intelligent specific surface area detection device in China so far. Its test results are highly consistent with international standards, and its stability is also very good. At the same time, it reduces human errors and improves the accuracy of test results. A battery is a device for energy conversion and storage. It converts chemical or physical energy into electrical energy through a reaction. A battery is a chemical power supply. It consists of two positive and negative electrodes with different active ingredients. The two electrodes are in contact with an electrolyte that can provide media conduction. When connected to an external carrier, the internal To provide energy. As an electrical storage device, when two metals (usually different in nature) are immersed in the electrolyte, they can conduct electricity and generate a certain electromotive force between the "polar plates". The magnitude (or voltage) of the electromotive force is related to the metal used, and the electromotive force of different types of batteries is also different.
The performance parameters of the battery mainly include electromotive force, capacity, specific energy and resistance. The electromotive force is equal to the work done by the non-static force (chemical force) of the battery when the unit positive charge moves from the negative electrode through the battery to the positive electrode. The electromotive force depends on the chemical nature of the electrode material and has nothing to do with the size of the battery. The total charge that the battery can output is the capacity of the battery, which is usually measured in ampere hours. In the battery reaction, the electrical energy produced by 1 kg of reaction material is called the theoretical specific energy of the battery. The actual specific energy of the battery is smaller than the theoretical specific energy. Because the reactants in the battery do not all follow the battery reaction, and the internal resistance of the battery also causes the electromotive force to drop, so batteries with high specific energy are often called high-energy batteries. The larger the area of ​​the battery, the smaller its internal resistance.
The energy storage of the battery is limited, and the total amount of charge that the battery can output is called its capacity, which is usually measured in ampere hours. It is also a performance parameter of the battery. The capacity of the battery is related to the amount of electrode material, that is, to the volume of the electrode.
Practical chemical batteries can be divided into two basic types: primary batteries and accumulators. The primary battery can produce current after it is made, but it is discarded after the discharge is completed. The storage battery is also called a secondary battery. It must be charged before use. After charging, it can be discharged and used. When the battery is charged, the electrical energy is converted into chemical energy; when it is discharged, the chemical energy is converted into electrical energy.

Investment Casting

Shijiazhuang Helper Soaring Stainless Steel Products Co., Ltd. is one of the subsidiaries of Helper Group. It is a professional manufacturer of all types of precision casting and machining components for pump, valve, hydraulic system, agricultural machinery, automobile industry and various OEM parts. The main materials are carbon steel, stainless steel and other alloy steel etc. Advanced process technology (Silicon sol process) and investment casting producing line and professional technical team are the advantages that will help clients to save cost and create value.

Galvanized Precision Casting Parts,Precision Casting Flange Parts,Precision Casting Valve,Stainless Steel Products Manufacturing

Helper Machinery Group Co., Ltd. , https://www.helperfoodtek.com