The Design And Realization Of Communication And Calibration Of Lithium-ion Battery Formation And Grading System

As the lithium-ion batterry has been widely used in various industries, market demand for lithium-ion battery is increasing. The market requires bigger quantities and higher quality for the lithium-ion battery. At the same time, the market proposes higher demand for the manufacturing equipment of lithium-ion battery. The formation equipment of lithium-ion battery is the key equipment in the manufacturing equipments. Some shortcomings of existing equipments at home and abroad are:these machine’s can’t meet the demand for larger-scale production; formation control accuracy is not high enough; formation detection technology is too complex and the cost of machine is too high.To solve these problems, this paper proposed a multi-functional formation system, which can be used in the manufacture and research of lithium-ion battery. This system consisted of many formation cabinets and those network system, communication network, computer servers and software, two-dimensional code processing and so on. This paper is responsible for the design and realization of communications and calibration. The main research contents are as follows:1. To solve the shortcomings of existing equipments, this paper proposed a main plan for the formation system and the design requirements for for the formation system, designed a circinate three level distributed formation scheme. This scheme reduced the demand of hardware, avoided the traffic congestion and improved the real-time request of the system. The main devices were selsected carefully on the consideration of many factors.2. The design and implementation of the hardware and software of the interface board were complished, it included:communication module, power-control module, data collect module, display module and so on. This paper designed a communication protocol which could realize the priority chain. The interface board builded the priority chain, avoided the communication traffic, it also could adjust the number of lower computers depend on demands; it could increase the number of channels of the cabinet and adapt the demand of mass production. 3. The design and implementation of the hardware and software of the calibrator were complished, it included:data collcet module, display module, overcurrent protection and so on. This paper also designed a measuring and calibrating method by using a multi-channel switcher, this method realized the automation and intelligence of the calibration. It avoided the complex operation and the personal error, it also shorten the calibrating time.4. The interface board and the calibrator were tested with computer server and mainboard. The result showed that they realized the scheduled system functions and index requirements, and solve some problems in existing formation systems.