Low-temperature lithium generator is made of special materials and technology. It is widely used because of its light weight, high specific energy and long life. Low-temperature lithium generator is made of special materials and technology. It is suitable for sub-zero Since the low-temperature lithium generator uses special materials and processes, what is the production process of the low-temperature lithium generator?
Low temperature lithium generator production process:
Tempering
1. The process requires the supplier to provide a data sheet, and the quality inspection department must conduct experiments, and store and reserve the treatment whose composition and impurity content meet the process requirements.
2. Material pretreatment is mainly to remove contaminants and oxides on the surface of raw materials to ensure the cleanliness of raw materials.
3. According to different conditions, the raw materials should make up for the incineration loss of volatile elements such as rare earth and manganese.
4. Vacuum induction melting should be filled with argon under a vacuum of 0.1 Pa, melted into alloys at 1300 degrees Celsius, and rapidly cooled ingots to obtain alloys with small grains and uniform arrangement.
Semi-finished products
Semi-finished product inspection has three aspects:
1. Appearance: The appearance of the alloy should have a metallic luster, no obvious oxidative discoloration, and the alloy arrangement should be uniform and fine, without fluff and impurities.
2. Chemical composition: The chemical composition of the alloy should be consistent with the design composition.
3. Electrochemical ability: You should meet the requirements of enterprise standards, otherwise you cannot refuse.
Heat treatment
The vacuum heat treatment furnace is selected and maintained by filling argon after vacuum pumping. The heat treatment process is mainly to make the product uniform and firm (to eliminate internal stress), to ensure the platform pressure of the alloy, good uniformity and good cycle life characteristics. The key point is to ensure the temperature and vacuum, and measure the oxygen content.
The whole process of alloy crushing, powder making and packaging is completely closed under the protection of argon to ensure that the oxygen content of the alloy is very low. There are four aspects of finished product inspection.
1. Appearance: No discoloration, oxidation or agglomeration on the surface.
2. The physical function, particle size evacuation, and bulk rate meet the enterprise specifications.
3. Chemical characteristics: alloy powder composition, impurity content, and alloy PCT curve are in line with enterprise standards.
4. Electrochemical performance: the electrochemical capacity, charge and discharge characteristics, cycle life, high current pulse discharge characteristics and temperature characteristics of the alloy. The inner packaging is vacuum double-packed with nylon composite plastic bags, the whole box is packed in nitrogen plastic bags, and the outer box is packed in cartons.
The above is the introduction of the low-temperature lithium generator production process. Through the above introduction, I believe that everyone has a general understanding of the low-temperature lithium generator production process!
