SLVELEKTRONIK electrical components Germany SLVELEKTRONIK model SLVELEKTRONIK price

SLVELEKTRONIK electrical components refer to devices that convert chemical energy into electrical energy, consisting of part of the space in cups, tanks, or other containers or composite vessels holding electrolyte solutions and metal electrodes to generate current. They have distinct positive and negative poles. With technological advancements, batteries broadly refer to small devices capable of generating electrical energy, such as solar cells. Key performance parameters of batteries include electromotive force, capacity, specific energy, and resistance. Using batteries as an energy source provides stable voltage, stable current, long-term stable power supply, and current minimally affected by external factors. Furthermore, batteries feature a simple structure, are portable, offer easy charging and discharging operations, are unaffected by external climate and temperature, and provide stable and reliable performance, playing a significant role in various aspects of modern social life.

SLVELEKTRONIK electrical component principle

In chemical batteries, the direct conversion of chemical energy into electrical energy results from spontaneous oxidation-reduction reactions occurring internally at the two electrodes. The negative electrode active material consists of reducing agents with a more negative potential that are stable in the electrolyte, such as active metals like zinc, cadmium, and lead, as well as hydrogen or hydrocarbons. The positive electrode active material consists of oxidizing agents with a more positive potential that are stable in the electrolyte, such as metal oxides like manganese dioxide, lead dioxide, and nickel oxide, oxygen or air, halogens and their salts, and oxyacids and their salts. The electrolyte is a material with good ionic conductivity, such as aqueous solutions of acids, alkalis, and salts, organic or inorganic non-aqueous solutions, molten salts, or solid electrolytes. When the external circuit is open, although there is a potential difference (open-circuit voltage) between the two poles, no current flows, and the chemical energy stored in the battery is not converted into electrical energy. When the external circuit is closed, current flows through the external circuit under the influence of the potential difference between the two electrodes. Simultaneously, inside the battery, since there are no free electrons in the electrolyte, charge transfer must accompany oxidation or reduction reactions at the interface between the active materials of the two poles and the electrolyte, as well as mass transfer of reactants and products. Charge transfer within the electrolyte is also accomplished by ion migration. Therefore, normal charge and mass transfer processes inside the battery are necessary conditions for ensuring normal electrical energy output. During charging, the direction of charge and mass transfer processes inside the battery is opposite to that during discharging; electrode reactions must be reversible to ensure the normal progress of reverse mass and charge transfer processes. Thus, reversibility of electrode reactions is a necessary condition for constituting a rechargeable battery. This represents the basic thermodynamic relationship between battery electromotive force and battery reaction, and is also the fundamental thermodynamic equation for calculating battery energy conversion efficiency. In practice, when current flows through the electrodes, the electrode potential deviates from the thermodynamic equilibrium electrode potential, a phenomenon known as polarization. The greater the current density (current passing through unit electrode area), the more severe the polarization. Polarization is one of the important causes of battery energy loss. There are three causes of polarization: (1) polarization caused by the resistance of various parts within the battery is called ohmic polarization; (2) polarization caused by the hindrance of the charge transfer process in the electrode-electrolyte interface layer is called activation polarization; (3) polarization caused by the sluggish mass transfer process in the electrode-electrolyte interface layer is called concentration polarization. Methods to reduce polarization include increasing the electrode reaction area, reducing current density, raising the reaction temperature, and improving the catalytic activity of the electrode surface.

SLVELEKTRONIK electrical component function

(1) often compares sensor functions to the 5 major human sensory organs: photosensitive sensors for vision, acoustic sensors for hearing, gas-sensitive sensors for smell, chemical sensors for taste, and pressure-sensitive, temperature-sensitive, and fluid sensors for touch. (2) Classification of sensitive elements: Physical type, based on physical effects such as force, heat, light, electricity, magnetism, and sound. Chemical type, based on the principles of chemical reactions. Biological type, based on molecular recognition functions such as enzymes, antibodies, and hormones. Typically, they can be divided into ten major categories based on their basic sensing functions: thermal-sensitive elements, photosensitive elements, gas-sensitive elements, force-sensitive elements, magnetic-sensitive elements, humidity-sensitive elements, acoustic-sensitive elements, radiation-sensitive elements, color-sensitive elements, and taste-sensitive elements (some have also classified sensitive elements into 46 categories).

SLVELEKTRONIK electrical component principle

An AC power supply that provides stable voltage and frequency is called an AC stabilized power supply. Most domestic manufacturers focus on AC voltage stabilization. The following briefly describes the classification characteristics of available AC voltage stabilizers in the market. Parameter adjustment (resonance) type: The basic principle of voltage stabilization for this type of stabilizer is LC series resonance. Early magnetic saturation stabilizers belong to this category. Its advantages include: simple structure, few components, high reliability, wide voltage stabilization range, and strong anti-interference and overload capacity. Disadvantages include: high energy consumption, high noise, heavy weight, and high cost.

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