What are the raw materials for the production of lithium batteries?

2022-05-11 16:45:11 admin 0

  The raw materials for the production of lithium batteries are mainly composed of positive electrode materials, negative electrode materials, separators, and electrolytes.


1. Positive electrode material: Among the positive electrode materials, the most commonly used materials are lithium cobalt oxide, lithium manganate, lithium iron phosphate and ternary materials. The cathode material occupies a large proportion, because the performance of the cathode material directly affects the performance of the lithium ion battery, and its cost also directly determines the cost of the lithium battery.


2. Negative electrode materials: Among the negative electrode materials, the current negative electrode materials are mainly natural graphite and artificial graphite. As one of the four major components of lithium battery, the negative electrode material plays an important role in improving the capacity and cycle performance of the battery, and is the core link in the midstream of the lithium battery industry.

3. Diaphragm: The market-oriented diaphragm materials are mainly polyethylene and polypropylene diaphragms. In the structure of lithium batteries, the separator is one of the key inner layer components. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. The separator with excellent performance plays an important role in improving the overall performance of the battery.


4. Electrolyte: Electrolyte is generally prepared from high-purity organic solvent, electrolyte lithium salt, necessary additives and other raw materials under certain conditions and in a certain proportion. The electrolyte plays the role of conducting ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the lithium ion battery to obtain the advantages of high voltage and high specific energy.

  As lithium batteries are more and more widely used, in order to meet people's use requirements, enterprises are constantly expanding their production scale, and lithium battery equipment companies are continuously increasing their output. At present, my country continues to open up new energy policies, and enterprises producing lithium battery equipment are emerging in an endless stream, and the number is growing rapidly, resulting in more and more fierce market competition for lithium battery equipment.


  The production process and equipment management level of my country's lithium-ion battery materials urgently need to be transformed and upgraded. Use information technology to enhance, improve, and reconstruct production factors, improve enterprise organization and management, innovate production methods, improve asset quality and service functions, and adapt to the rapid development of the market and change.

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