1. Lithium battery production equipment

According to the production process of lithium-ion batteries, lithium battery equipment can mainly be divided into front-end equipment, mid-range equipment, and back-end equipment.

1) . Lithium ion front-end equipment: Lithium ion front-end equipment is mainly designed for electrode production processes, including vacuum mixers, coating machines, roller presses, and slitting machines. The coating process requires evenly coating the stirred slurry on the metal, with a thickness accurate to 3 μ When cutting below m, it is necessary to ensure that there are no burrs on the surface of the slice, otherwise it will have a significant impact on the subsequent process. Therefore, front-end equipment is the core equipment of battery manufacturing, which is related to the quality of the entire production line.

2). Lithium battery mid-range equipment: Lithium battery mid-range equipment mainly covers the battery cell assembly process, including winding or laminating machines, battery cell shell insertion machines, liquid injection machines, and sealing welding equipment.

3). Backend devices: Backend devices mainly cover processes such as cell activation, capacitance detection, and assembly into battery packs. Relatively speaking, the middle and back-end equipment such as shell insertion, sealing, and detection machines are relatively simple, and the technical requirements are not high.

Lithium battery equipment is limited in design, production technology, and management level, and has not formed a certain enterprise scale, and cannot guarantee supply and demand.

2. What are the raw materials for producing lithium batteries?

The main components of raw materials for producing lithium batteries include: positive electrode materials, negative electrode materials, separators, and electrolytes.

1). Positive electrode materials: Among positive electrode materials, the most commonly used materials are lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, and ternary materials. Positive electrode materials account for a large proportion because their performance directly affects the performance of lithium-ion batteries, and their cost directly determines the cost of lithium-ion batteries.

2). Negative electrode materials: Currently, natural graphite and artificial graphite are the main negative electrode materials. As one of the four major components of lithium batteries, negative electrode materials play an important role in improving the capacity and cycling performance of batteries, and are at the core of the midstream of the lithium battery industry.

3). Separator: The market-oriented separator materials are mainly polyethylene and polypropylene based separator. In the structure of lithium batteries, the separator is one of the key inner components. The performance of the separator determines the interface structure, internal resistance, and other characteristics of the battery, directly affecting its capacity, cycling, and safety performance. An excellent separator plays an important role in improving the overall performance of the battery.

4). Electrolyte: Electrolyte is generally composed of high-purity organic solvents, lithium electrolyte salts, necessary additives, and other raw materials, prepared under certain conditions and in a certain proportion. The electrolyte plays a role in conducting ions between the positive and negative electrodes of lithium-ion batteries, ensuring that lithium-ion batteries obtain high voltage, high specific energy, and other advantages.

With the increasingly widespread application of lithium batteries, in order to meet people's usage requirements, enterprises are constantly expanding their production scale, and lithium battery equipment enterprises are constantly increasing their output. Currently, China is continuously opening up new energy policies, and there are also numerous enterprises producing lithium battery equipment, with the number growing rapidly, leading to increasingly fierce market competition for lithium battery equipment.

The production process and equipment management level of lithium-ion battery materials in China urgently need to be transformed and upgraded. Utilizing information technology to enhance, improve, and reconstruct production factors, enhance enterprise organizational management level, innovate production methods, enhance asset quality and service functions, and adapt to the rapid development and changes of the market.