In today's era of rapid development of science and technology, lithium batteries, as an efficient and environmentally friendly energy storage equipment, have been widely used in various fields, from our daily use of smart phones, laptops, to electric vehicles, energy storage power stations, lithium batteries are everywhere. Its emergence has not only changed our way of life, but also injected a strong impetus into the energy revolution and sustainable development, all of which cannot be separated from advanced lithium battery manufacturing technology.

Lithium battery manufacturing is a complex and delicate process involving several key links. The first is the preparation of raw materials, mainly including lithium, cobalt, nickel and other metal materials, as well as electrolyte, diaphragm and other auxiliary materials. The quality and purity of these raw materials directly affect the performance and safety of lithium batteries. For example, the quality of lithium ore determines the energy density of the battery, and high-purity lithium materials can make the battery store more electricity, thereby improving the battery life of the device.

The next is the cell assembly, the positive plate, the diaphragm, the negative plate in accordance with a certain sequence of stacking or winding up, into the battery case, and then injected the electrolyte, after sealing, formation and other processes, and finally formed a complete cell. In this process, the process accuracy and environmental requirements are extremely high, and any small impurities or defects may lead to reduced battery performance and even cause safety problems.

In addition to the above basic processes, lithium battery manufacturing also continues to emerge new technologies and new processes. For example, the research and development of solid-state battery technology is expected to solve the safety hazards and energy density bottlenecks of traditional liquid lithium batteries. Solid-state batteries use solid-state electrolytes instead of traditional liquid electrolytes, which can significantly improve the safety and energy density of batteries, and provide new possibilities for the long-term development of electric vehicles. In addition, the application of silicon-based anode materials has become a research hotspot, the theoretical specific capacity of silicon is much higher than the traditional graphite anode, which can greatly improve the energy density of the battery, but at the same time, it is also faced with technical problems such as volume expansion, which need to be solved by means of material modification and structural design.

Despite significant progress in lithium battery manufacturing, there are still many challenges. On the one hand, the supply and price volatility of raw materials are becoming increasingly prominent, and the distribution of key metal resources such as lithium and cobalt is uneven, and the supply shortage in some regions may affect the development of the entire lithium battery industry. On the other hand, with the continuous improvement of the market's performance requirements for lithium batteries, how to further improve the energy density, reduce costs, and extend the service life under the premise of ensuring safety is still a technical problem to be overcome.