Cell refers to the core part of the battery, usually composed of positive negative plate, electrolyte and diaphragm. In electronic products, cell is an important part of the battery, and its performance and quality directly affect the working effect and safety of the battery. This article will discuss the specific structure and principle of cell and its application in electronic products.

The specific structure of cell

1. positive Negative plate: The positive cell of negative plate is the core part of the battery. The positive electrode plate is usually composed of lithium compound materials such as lithium oxide lithium manganese oxide or lithium oxide lithium cobalt oxide, and negative plate is usually composed of carbon materials such as graphite. The positive negative plate is isolated by electrolyte and diaphragm.

2. Electrolyte: the electrolyte inside cell is usually composed of organic solvent dissolved with lithium salt. As the medium between positive and negative electrodes, it plays a role in transferring ions and charges.

3. Diaphragm: diaphragm is an important part of isolating positive cell and preventing short circuit in negative plate. It is usually made of polyolefin or polyethylene and other materials.

Working Principle of cell

cell during the charging and discharging process, the chemical reaction between positive and negative electrodes will cause the lithium ion to transfer back and forth between positive and negative plate, thus realizing the charging and discharging process of the battery. When charging, lithium ions will transfer from the positive plate to negative plate, while when discharging, the opposite is true. Electrolyte and diaphragm play the role of transferring ions and charges, ensuring the charge balance and stability between positive negative plate.

Application of cell in electronic products

1. mobile phone battery: mobile phone battery is one of the most common cell applications in electronic products. Mobile phone battery usually uses lithium-ion battery core,It has the advantages of high energy density, light weight, fast charging and so on, and can meet the needs of long-term standby and call of mobile phones.

2. Laptop Battery: Laptop battery also often uses lithium-ion battery core, which has the characteristics of high energy density and long service life, and can meet the needs of users for long-term use of computers.

3. Electric vehicle battery: Electric vehicle batteries usually adopt large capacity lithium-ion battery core, and its high energy density and long cycle life can meet the needs of electric vehicles for long distance driving and fast charging.

4. Smart wearable device battery: smart watches, smart wristbands and other smart wearable devices usually use small lithium polymer battery cell, which has the characteristics of light weight, high energy density and long endurance, and can meet the needs of users for lightweight devices, requirements for long-term use.

The importance of cell

as the core part of battery, cell plays an important role in electronic products. The performance and quality of cell directly affect the use effect, safety and service life of the battery. Selecting appropriate cell materials, structures and processes can improve the energy density, cycle life and safety of the battery and provide important support for the design and manufacture of electronic products.

As the core part of batteries in electronic products, cell's structure, principle and application play a vital role in the performance and safety of batteries. By understanding the specific structure and working principle of cell and its application in different electronic products, we can better understand the development and application scenarios of battery technology.