Mobile power display

Today, we will discuss mobile power lithium batteries. The mobile power supply is generally powered by batteries. There are three kinds of batteries commonly used in mobile power supply: AAA nickel-metal hydride battery. Among them, AAA type nickel-metal hydride battery is rare, polymer lithium battery and 18650 type lithium battery are the most common. Let’s talk about the first lithium batteries and lithium polymer batteries in 18650.

First of all, what is the battery battery, lithium battery = maintenance circuit board + battery, that is to say, the maintenance circuit board of the battery removed is lithium battery. However, in the international mobile power supply, we generally refer to the mobile power maintenance circuit board is generally included, in fact, the accurate name should be called lithium battery. Anyway, forget the details. Speaking of lithium batteries, let’s take a look at what a lithium battery is.

Lithium battery refers to lithium ion composite positive and negative secondary battery. The positive data of lithium batteries are generally composed of lithium active compounds, while the negative data are carbon with a special molecular structure. An important component of commonly used positive information is LiCoO2. During charging, electrical potential at the battery’s north and south poles forces compounds in the positive electrode to release lithium ions, which are embedded in the carbon as molecular sheets lined up in the negative electrode. When lithium ions discharge, they are separated from the carbon in a layered structure and combine with positive ions. The movement of the lithium ions produces an electric current.

SONY first invented the lithium-ion battery in 1991. After more than 20 years of development, although information technology is constantly updated, there is no breakthrough in technological development. As long as mobile phones use lithium batteries, they will continue to run low. The mobile power will continue to emit.

Lithium battery is divided into solid lithium battery and liquid lithium battery according to the different electrolyte materials, solid lithium battery is divided into polymer lithium battery and inorganic lithium battery. At present, the most widely used mobile power battery is lithium electrolyte battery in liquid lithium battery and lithium electrolyte battery in solid polymer battery. Specifically, the most common mobile power batteries are the 18650 lithium battery and lithium battery. It can also be shortened to 18650 batteries and polymer batteries. In general, we can see the logo on the battery type mobile power supply box or the manual, the box or the manual generally only lithium battery, polymer battery, lithium battery here refers to the lithium battery is generally 18650, of course, there are exceptions, such as the product used by the figure won 26700 lithium battery.

18650 lithium batteries

The biggest difference between the 18650 lithium battery and the polymer lithium battery is that the 18650 lithium battery has no maintenance circuit. Let’s start with why it’s called the 18650 lithium battery. In fact, 18650 refers to a cylindrical battery with a diameter of 18 mm and a height of 65 mm.

The 18650 battery we’re talking about here is the 18650 lithium battery. At present, the most widely used mobile power supply is ICR18650 lithium battery, which uses layered lithium cobalt oxide as the cathode data. 18650 is usually packed in steel case. The single capacity is generally 2200mAh, 2400mAh and 2600mAh. The parallel capacity of mobile power supply manufacturers will exceed 18650, which is why some mobile power supply capacity is not an integer.

The biggest advantage of 18650 lithium battery is low price and low cost. Defect safety is poor, there is the possibility of self-explosion. At present, about 100 yuan mobile power supply is 18650 lithium battery. The 18650 lithium battery has a cycle life of about 300 times, while some unscrupulous mountain mobile power manufacturers use lithium batteries and mark them as 500 times.

Lithium polymer battery

Lithium polymer batteries use the same positive and negative data as liquid lithium ions. The cathode data is divided into lithium cobalt, lithium manganese, ternary data and lithium iron phosphate data, and the cathode graphite, whose working principle is basically the same as that of liquid electrolyte lithium battery. The important difference is the electrolyte used in liquid lithium batteries and the electrolyte used in solid polymer lithium batteries. Lithium polymer battery packaging is mainly aluminum plastic film, because the middle of the lithium paste, so the shape can be customized.

Advantages: stable discharge, high efficiency, small internal resistance, small thickness, light weight, customizable shape, good safety performance, cycle life of about 500 times. Defects, polymer lithium battery deformation, impact resistance, high cost, high risk of spontaneous combustion.

Brief introduction:

The above is the mobile power battery show for you. I hope to provide some reference and help for you to buy mobile power. No matter which kind of mobile power supply, there are potential dangers, so we must pay attention to purchase and correct use, after all, there is no safety problem.