1. How does a rechargeable battery work?
Rechargeable batteries are a class of devices that utilize chemical reactions to achieve the conversion between electrical energy and chemical energy, thus achieving the purpose of storing and releasing electrical energy. Before understanding the working principle of a rechargeable battery, you need to understand the basic structure of a rechargeable battery.
Rechargeable batteries are mainly composed of positive and negative electrodes, electrolytes, and a diaphragm, different types of rechargeable batteries use other materials. Such as LiFePO4 battery cathode material for LiFePO4, while the lead acid battery cathode material for lead dioxide.
When a rechargeable battery is being charged, electrons will move from the negative pole to the positive pole inside the rechargeable battery. In contrast, in the external circuit of the battery, electrons will move from the positive pole to the negative pole and generate a certain current, thus completing the charging process of the rechargeable battery. The discharging process of the rechargeable battery is exactly opposite to the charging process.
In the discharge process, the electrons will move from the positive pole to the negative pole of the rechargeable battery. In contrast, in the external circuit, the electrons will move from the negative pole to the positive pole and generate a certain current, thus completing the discharge process of the rechargeable battery.
Of course, different types of rechargeable batteries in the specific how to work there will be some differences, take the working principle of LiFePO4 battery, in the charging process, lithium ions will be detached from the positive electrode material (LiFePO4), through the electrolyte, through the battery in the middle of the diaphragm, migrate to the negative electrode graphite material.
At the same time, the positive electrode of the LiFePO4 battery releases electrons. To maintain the balance of the chemical reaction, in the external circuit, the electrons released by the positive electrode flow to the negative electrode through the external circuit. In this way, the electrical energy is converted into the chemical energy in the battery, which completes the charging process of the lithium iron phosphate battery.
2. What do you need to pay attention to in the work of rechargeable batteries?
2.1 Pay attention to the environment around the working rechargeable battery
It is very important to pay attention to the environment around the working rechargeable battery. You should avoid your rechargeable battery working in extreme temperatures (high and low temperatures), humidity, and closed space. Because it may lead to abnormalities of the working rechargeable battery.
Taking rainy days as an example, if your rechargeable battery is working outdoors, rainwater can cause a short circuit in the battery. This will cause a rapid increase in the internal current of the battery, generating a large amount of heat, which can damage the rechargeable battery. In severe cases, leads to a fire. So on rainy days, rechargeable batteries that are working outdoors should be turned off promptly and moved to a dry place.
2.2 Do not let children or pets near the working rechargeable battery
Rechargeable batteries should not let children or pets close to the work. First of all, children and pets may touch the exposed electrodes of the rechargeable batteries, which will be electrocuted, resulting in damage to the lives of children or pets.
Secondly, children or pets may interfere with the normal operation of the rechargeable battery, or even damage the rechargeable battery, which will reduce the service life of the rechargeable battery. Therefore, you should place the working rechargeable battery out of reach of children and pets.
2.3 Disconnect the working rechargeable battery from the load or power supply in time
If the rechargeable battery is connected to the load for a long time, it may cause the rechargeable battery to reach too low a level and over-discharge occurs. If the rechargeable battery is connected to a power source for a long period, the battery will be overcharged.
Both overcharging and over-discharging will reduce the performance of the rechargeable battery, which in turn will reduce the service life of the rechargeable battery. In serious cases, a fire may even occur. Therefore, you need to disconnect the rechargeable battery from the load or the power supply when it has finished its work.
3. What types of rechargeable batteries are there and how should I choose them?
Rechargeable batteries have become an indispensable device for human beings. There are many different types of rechargeable batteries on the market, including lead-acid batteries, lithium-ion batteries, LiFePO4 batteries, nickel-cadmium batteries, and nickel-metal batteries.
Regarding how to choose rechargeable batteries, you need to consider a variety of factors, such as application scenarios, natural environment upfront costs, etc.
For example, suppose you need to buy a batch of rechargeable batteries for large-scale solar power plants, then LiFePO4 batteries can be better suited to the job. Because LiFePO4 batteries are more stable and can accept a wider range of operating temperatures (roughly between -40℃ and 60℃) and LiFePO4 batteries have a high energy density.
4. Summary
By understanding the working principle of rechargeable batteries, you can use your rechargeable batteries better. Of course, to make your rechargeable batteries work safely and efficiently, you should familiarize yourself with the precautions to be taken when rechargeable batteries work. If you still can’t decide which kind of rechargeable battery to buy, you can consult us. We will provide you with satisfactory solutions according to your questions.
