How many charging methods are commonly used for batteries-lead batteries
2022 May 06 By admin 0 comment

There are three most commonly used basic methods for battery charging, that is, constant voltage charging method, constant current charging method and staged charging method. In practice, it can be selected according to the different requirements of various batteries. The principle basis of battery charging From the battery charging voltage relationship U=E+Ir introduced earlier, it can be changed to the charging current relationship, that is Battery charging voltage relationship The above formula shows that no matter which method is used to charge the battery, it is based on the principle of the charging current relationship (charging voltage relationship). Constant voltage…

Batteries – How much do you know about the model naming and electrolyte preparation technology of lead batteries?
2022 Apr 20 By admin 0 comment

Model designation of lead-acid battery 1.1. Traditional nomenclature of lead-acid battery models The model designation of lead-acid battery is often composed of three characters. The first part uses numbers to indicate the number of single cells in series. If it is a single cell, this part is often not marked; The second part uses 1-3 letters to indicate the purpose, type and material of lead-acid battery in turn; the third part uses numbers to indicate the rated capacity of battery. The marking method of its model is as follows. 1) Standard marking method of lead-acid battery model For example, the…

What are the application characteristics of chemical batteries?
2021 Sep 26 By admin 0 comment

①Application characteristics of primary battery and secondary batteryⅠ. Features of primary batteryThe so-called primary battery refers to a non-rechargeable battery. The primary battery has to be discarded after the electric energy is used up all at once.Zinc-manganese batteries, alkaline zinc-manganese batteries, silver oxide micro-batteries, lithium-manganese batteries, etc. commonly used in flashlights, remote controls, electronic clocks, microcomputers, and micro-electronic toys are all primary batteries. Ⅱ. Features of secondary battery The secondary battery refers to a battery that can be recharged and reused. The secondary battery has high comprehensive benefits and low cost. Lead-acid batteries, cadmium-nickel batteries, and lithium-ion batteries that are…

Comparison of characteristics of various batteries
2021 Sep 26 By admin 0 comment

①Comparison of characteristics of various primary batteriesTable 1 lists the characteristic comparison of some primary batteries. Battery TypeAmmonium zinc manganeseZinc type zinc manganeseAlkaline zinc manganeseZinc silverAlkaline Zinc AirLithium Manganese chemical composition positive electrodeZincZinc Zinc Zinc Zinc lithiumchemical compositionnegative electrodemanganese dioxidemanganese dioxide manganese dioxide Silver oxideOxygen (air) manganese dioxide chemical composition ElectrolyteAmmonium chloride solutionZinc chloride solutionPotassium hydroxide solutionPotassium hydroxide solutionPotassium hydroxide solutionOrganic solvent salt solutionSingle battery rated voltage/V1.51.5 1.5 1.5 1.43.0Working temperature/°C﹣5~+45 ﹣10~+50 0~+55 0~+55 0~+55 ﹣20~+55 Discharge curvetilt tilt tilt flatflatflatAnnual self-discharge rate at 20℃/%101076153Leakproofmediumgoodmediummedium medium goodadvantageLowest cost, various shapes and sizes, suitable for low-power power supplyLow cost, good leakage…

What are the main parameters of chemical batteries?
2021 Sep 26 By admin 0 comment

The main parameters of the battery①The electromotive force of the power supplyAs a chemical energy source, the battery’s internal substances are undergoing chemical reactions all the time. The result of the chemical reaction is that the positive electrode accumulates a large amount of positive charge, and the negative electrode accumulates a large amount of negative charge, so that the positive electrode potential of the battery is higher than the negative electrode potential, which inevitably produces a potential difference between the positive electrode and the negative electrode, which is externally expressed as a voltage.With voltage at both ends of the battery,…

Types and functions of chemical batteries
2021 Sep 26 By admin 0 comment

① How to classify batteriesChemical batteries are mostly used daily, and are often divided into two categories: primary batteries and secondary batteries according to whether they can be recharged. Primary batteries are non-rechargeable batteries, also known as dry batteries or primary batteries; secondary batteries are batteries that can be recharged repeatedly, also known as rechargeable batteries or accumulators. Batteries are used to refer to lead-acid batteries, which are also secondary batteries; fuel cells, that is, active materials are continuously added to the battery from the outside when the battery is working, such as hydrogen-oxygen fuel cells, etc.; storage batteries, that…

Basic knowledge of battery classification and chemical battery
2021 Sep 26 By admin 0 comment

Batteries are generally divided into two categories: chemical batteries and physical batteries.Chemical battery is a kind of energy storage and conversion device, which can convert stored chemical energy into electric energy, which can be used to supply gas equipment. Therefore, chemical battery is also called chemical power source. For example, zinc-manganese batteries, silver oxide batteries, lead storage batteries, nickel-cadmium batteries, and lithium batteries are all chemical batteries.The physical battery is a kind of energy conversion device, it needs to obtain energy from the outside before it can be converted into electric energy. For example, silicon photovoltaic cells, solar cells, thermoelectric…