Li-ion battery is not a class of lithium or lithium alloy anode material, the use of non-aqueous electrolyte solution batteries. First appeared in lithium battery using the following reaction: Li + MnO2 = LiMnO2 the reactionG1947， RN873 ，Y6142,GK479  of oxidation-reduction reaction, the discharge. Since the chemical properties of lithium metal is very lively, making lithium-metal-processing, preservation, exploitation and environmental standards are very high, so that applications are not widespread.

Later, the Japanese Sony Corporation of carbon materials for the anode to the cathode, the lithium compounds for lithium batteries, charging and discharging, there is no lithium metal and lithium-ion only, the lithium-ion battery is come. When charging the battery when the battery on the positive lithium ion generation, lithium-ion movement through the electrolyte to the cathode. Since the carbon anode layered structure, it has a lot of micro, reaching the negative electrode of lithium-ion embedded in porous carbon layer, the embedded lithium-ion, the more the higher the loading capacity. Likewise, if the battery is discharged (ie the process that we use) the battery in the carbon cathode layer of lithium-ion embedded extrusion, but also back in a positive direction. Back to the cathode of lithium-ion, the more the higher the discharge capacity. We usually say that the battery capacity is the discharge capacity. In the Li-ion charge-discharge process, lithium-ion transition from the negative positive → → positive moves in space. Li-ion batteries is like a rocking chair, rocking chair at both ends of the battery terminals, while the lithium-ion rocking back and forth, as the players do not run. Hence Li-ion batteries as a rocking chair batteries known.

In order to develop an idea of superior varieties were studied people from different materials. What makes an unparalleled product. For example, is lithium-sulfur batteries and lithium-thionyl chloride batteries are very characteristic. Their is also a positive active material and electrolyte solvent. This structure is not only yours-aqueous electrochemical system to. Therefore, the lithium battery research, but also contributed to the electrochemical theory of non-aqueous system development. In addition to using a variety of non-aqueous solvent, the polymer film was also carried out cell research.

Lithium-ion batteries for its unique performance advantages in portable devices such as laptops, cameras, mobile communications are universally applied. Currently, the development of high-capacity lithium-ion batteries in electric vehicles, a process that is expected by 21 Century are beginning to use the power of electric vehicles, one of the major driving force, and a satellite, aerospace and energy storage aspects. With the energy shortage and global pollution. Lithium is now widely used in electric car industry, especially iron phosphate lithium battery materials, the look, but also to the lithium battery industry development and application. 

 With digital products like mobile phones, laptops and other products widely used lithium-ion batteries with excellent performance in these products are widely FK890 ， RN873 ,NF343，PC764，GW240used in recent years and gradually to other areas of development of product applications. In 1999, companies such as Shenzhen, BYD began commercial production of lithium-ion batteries. Traditionally it is the lithium-ion battery, also known as Li-ion batteries, lithium-ion battery has now become mainstream.