litium battery Manufacturers

The service life of lithium battery is an index that must be paid attention to in the use of lithium ion battery. Generally speaking, the service life of lithium ion battery is mainly affected by two factors: 1) service time; 2) Number of cycles.

The power recovery decision-making consultation salon co sponsored by the Beijing Association for Science and Technology and the Literature and Information Center of the Chinese Academy of Sciences was held in Beijing Green Space Center yesterday. Fei Weiyang, academician of the Chinese Academy of Sciences, pointed out that in recent years, the key technology of pure electric drive has made great progress, and the core technology of electric vehicles represented by lithium ion has made a major breakthrough. However, the massive application of lithium batteries will also lead to the retirement of a large number of lithium batteries. Therefore, it is necessary to strengthen the research and development of advanced technologies for lithium battery recycling to achieve safe and efficient disassembly and overall recovery of valuable metals and prevent secondary pollution.

The battery manufacturing process is mainly divided into two technical routes: lamination process and winding process. At present, the main technical direction of Chinese battery enterprises is mainly around winding, but with the progress of lamination technology, a large number of battery enterprises begin to enter the lamination field.

Electric cell refers to a single electrochemical cell containing positive and negative electrodes, which is not used directly. It is different from the battery which contains protective circuit and housing, and can be used directly. Generally speaking, it is a battery that removes the shell, and the rest is called the battery cell.

The battery module can be understood as the intermediate product of the battery cell and pack formed after the lithium ion battery cells are combined in series and parallel, and the single battery monitoring and management device is installed. Among the three common lithium battery packaging forms, the single energy density of the soft package lithium battery is the most easy to achieve, but when it comes to module design, the task of considering the overall safety of the product is the most important, which can be said to transfer part of the cell activity to the module structure.

At present, power battery mainly includes lithium iron phosphate battery, lithium manganate battery and lithium ternary battery. And lithium iron phosphate battery supports half of China's lithium ion battery material industry. What is the working principle of lithium iron phosphate battery?