This article shows you the numerical concept of a lithium battery

Preface-What is a lithium battery:

"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by GilbertN. Lewis. In the 1970s, M.S. Whittingham proposed and began to study lithium ion batteries. Due to the very lively chemical properties of lithium metals, the processing, preservation, and use of lithium metals require very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.

Numerical Concept of lithium battery for Aviation Model Literacy

The lithium battery we use on the aircraft model is now called "lithium polymer battery" and is generally referred to simply as lithium.

Aerial mode and lithium battery:

The popularization of lithium batteries inspecial models can be said to have entered a new era in thespecial model movement; It has greatly reduced the threshold of the "noble popular science movement" that seemed to be inaccessible. Nowadays, network information technology is increasingly developed. Online shopping has become the mainstream shopping method in this society, but are the batteries we buy good or bad? Why is there a huge difference in the market for batteries of the same capacity? These are questions that many novices will ask. Today we are going to do a great literacy study on the value of lithium batteries.

Value of lithium battery:

When you look at the values on a battery, most people know that the larger the mAh, the larger the battery capacity, and the larger the C number, the stronger the battery, but what exactly are these values defined, you know?

Let's start with the voltage. Take the 3.7 V lithium battery. In fact, 3.7 V here does not mean that it is full of electricity. The truly filled lithium battery voltage can only reach about 1-1 .5 V.

Next is the mAh and C values we mentioned earlier. The mAh here represents the capacity of the battery, and C is the discharge rate of the battery. The 1C battery concept for different capacities is also different(1C means that the battery can work for 1 hour with a 1C discharge rate). It may be a bit difficult to understand. It doesn't matter. Let's take an example: Suppose there is a 2000 mAh battery that works for one hour. Its average current is also 2000 MA, IE 2A; 2A is the 1C of this battery. If this battery is marked with 30C, it means that the maximum discharge rate of this battery is 2X30 = 60A. This means that the battery is safe under 60A use. (Generally, the aircraft model will not have such a large discharge rate)

However, if the above 60A battery works at 60C(ie, the maximum discharge rate), it will only last for two minutes.

In short, the smaller the C number, the longer the battery's maximum current discharge time, so it is not possible to buy the battery light to see the C number. Because it also has to do with the battery capacity.

Example description:

Finally, we use 11.1 V remote control model lithium battery as an example to show how to use lithium electricity correctly. In general, 11.1 V's remote-controlledspecial-mode lithium batteries are made of 3 lithium cores in series. This is also the most popular type of battery, abbreviated as 3S battery. Then the voltage of each core is 11.1 V/3, IE 3.7 V. The voltage marked on the lithium electricity of the model, mobile phone, camera, etc. is called the marked voltage and is obtained from the average operating voltage. The actual voltage of a single lithium core is 2.75 ~ 4.2 V, and the capacitance of the lithium superscript is the amount of electricity obtained from 4.2 V discharge to 2.75 V. The remote-controlledspecial-mode lithium battery must be kept within the voltage range of 2.75 to 4.2 V. For example, if the voltage of a remotely controlled type lithium battery is less than 3.7 V, it is an excessive discharge, and if it is less than 2.75 V, it is a serious excessive discharge(this damage to the battery is fatal). At this time, lithium will expand. If the expanded lithium battery continues to be used, it may cause serious consequences. The most serious is the explosion! Therefore, good usage habits are the only way to increase battery life! At the same time, it is recommended to charge the battery with a regular charger that complies with safety standards, and it is forbidden to privately modify the charger.

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