The process selection of cylindrical battery separator should be feasible, economical, reasonable, stable and reliable. In order to achieve the effect of energy saving and consumption reduction, continuous and stable production, improving product quality and reducing production costs. Full consideration should be given to environmental protection, labor operation safety, industrial hygiene and fire protection, etc., to eliminate the adverse impact of the production process on the environment and the possible adverse consequences on the health of workers. In the early stage of process positioning, the cylindrical battery separator comprehensively considers the possible adjustment of the future process, so as to avoid the insufficient reserved space of the early layout affecting the later process improvement. Because the production product faces the electric bicycle customers, the battery cell needs to be paired in series and parallel, which requires the production of the battery cell to have high consistency, high safety and strict voltage and internal resistance pairing requirements.

Therefore, the production process of this product and the conventional 3C cell production process need to be more strict in the selection of production line voltage, and need to have the corresponding traceability process and higher automation requirements. In the production process of the cylindrical battery separator, it is necessary to strictly control the environment and material downturn of the electrode manufacturing process to avoid dust and manual pollution.

Dosing process: including separate positive material and negative material dosing process using semi-automatic fully closed feeding, all dosing related raw materials in a fully closed environment for loading. In order to reduce the production of dust in the workshop and reduce the influence of the external environment on the batching, the cylindrical battery separator can realize the step-by-step continuous feeding method and greatly shorten the process time required for the batching.

Sizing iron removal: The automatic sorting machine will be equipped with good sizing after screening, automatic sorting machine to eliminate magnetic material treatment, this process uses permanent magnets for iron removal, requiring magnet magnetic strength above 12000 Gauss.

Coating process: The automatic sorting machine will remove the completed iron paste through the transfer tank or pipeline directly to the head of the coating machine for coating, using β ray online monitoring and other ways to strictly monitor the coating surface density.

Polar sheet rolling: The coated positive and negative polar sheets need to be immediately transferred to the rolling process for rolling and rolling to the thickness within the specified range of the process.

Automatic slitting: The cylindrical battery separator uses automatic slitting equipment to slitting the pole sheet completed by rolling, so that the pole sheet can reach the width within the specified range of the process.

Negative scraper: Use the automatic scraper to scrape out a small piece of empty foil area welding pole lug after cutting the negative plate.