The demand for lithium-ion batteries is growing rapidly, especially in the fields of electric vehicles, consumer electronics and energy storage systems. This ever-growing demand demands higher and higher battery efficiency, thereby enhancing the degree of automation and digitalization in battery production. The production process of lithium-ion batteries is very complex and requires the control and protection of various thermal and chemical processes. To minimize risks in production and enhance the productivity of the factory at the same time, safety measures need to be adopted with caution. At this point, the safety solution composed of sensors and control systems can not only monitor and control safety doors and open hazardous areas, but also monitor and control temperature, pressure and filling liquid level.