What is the manufacturing process and process flow of lithium-manganese battery?

Preparation of manganese dioxide cathode the heat-treated electrolytic manganese dioxide powder is mixed with acetylene black, polytetrafluoroethylene emulsion and isopropyl alcohol in a certain ratio and stirred to form a paste, then the paste is evenly coated on the metal catchment net for heat treatment and rolled to form an electrode; Another method is to make electrodes by rolling the prepared positive paste on both sides of the metal collector after heating. Prepared electrodes should be placed in the air humidity less than 2010 environment.

2. According to the different type of battery, the thickness and width of the lithium strip are selected, and the strip is cut to the required length, then the electrode lug is cold-welded on the cut lithium strip. The negative electrode was prepared in the environment with relative humidity less than 2%。

3. The preparation of the membrane will meet the thickness and width requirements of the polypropylene membrane drying in less than 2% humidity in the environment for use. The composite diaphragm which can be closed at 130 ~ 160 ° C is usually selected.

Preparation of a battery core in an environment where humidity is less than 2% , two membranes slightly wider than the electrodes are wrapped on both sides of the manganese dioxide positive electrode to separate the positive electrode from the lithium negative electrode, then, it is coiled into a core body on the winding machine and put into the battery shell. Lithium manganese dioxide battery core winding structure.

5. Preparation of electrolyte solution electrolyte solution formula different lithium battery manufacturers, the basic preparation method is to proportionally mix the dehydrated lithium perchlorate with the purified propylene carbonate, 1,2-Dimethoxyethane, etc. . The preparation of electrolyte solutions requires dry air with a humidity of less than 2% .

6. The filling of electrolyte solution and sealing welding of the injection port will first weld the upper cover with the glass insulator to the shell with the electrode core body installed, then the electrolyte solution of the specified weight is injected into the battery from the injection hole by the injection machine, and the hole is blocked by the steel ball welding.