The production process of polymer lithium-ion batteries involves multiple stages, including pole piece manufacturing, cell assembly, and testing and packaging. Here are some of the main steps in its production process and their safety considerations:

Material preparation: Select appropriate positive and negative electrode materials, electrolytes, separators, etc. Ensure the quality and safety of these materials and avoid using substandard or potentially hazardous materials.

Manufacturing of pole pieces: Coating the positive and negative electrode materials on the metal foil, drying, cutting and other processes. In this process, the thickness and uniformity of the coating, as well as the drying temperature and time, need to be controlled to ensure the quality and safety of the pole pieces.

Battery core assembly: Assemble the positive and negative electrode sheets, electrolyte and separator in a certain order and method to form an unactivated battery core. During this process, attention needs to be paid to the structural design and assembly process of the battery core to avoid safety issues such as internal short circuit and explosion of the battery core.

Injection and packaging: Inject electrolyte into the battery core and encapsulate it. In this process, it is necessary to control the injection volume and packaging quality to ensure the sealing and safety of the battery core.

Detection and testing: Conduct various inspections and tests on the assembled batteries, such as capacity test, internal resistance test, short circuit test, etc. These tests and inspections can ensure the quality and safety of battery cells and avoid potential safety risks.

Generally speaking, the production process of polymer lithium-ion batteries needs to strictly control the quality and safety of each link, and take necessary safety measures and precautions to ensure safety and product quality during the production process. At the same time, it is also necessary to comply with relevant safety regulations and operating procedures during the production process, strengthen safety training and education for employees, and improve employees’ safety awareness and skill levels.

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