Yang Jiaying of Wuxi Vocational and Technical College: The use of battery cell balance control to reduce the harm of battery accidents

Innovation and entrepreneurship is the source of economic and social development in the mainland, and the proposal and development of "mass entrepreneurship and innovation" provides new opportunities for college students to innovate and start their own businesses. In recent years, with the continuous improvement of dual innovation education in colleges and universities, students' enthusiasm for independent innovation and entrepreneurship has soared, and student innovation projects have gradually emerged and thrived. The column "Understanding the Code of Innovation" invited representatives of the University Innovation and Entrepreneurship Student Project to introduce their own projects. A few days ago, Yang Jiaying, a student representative of the "Juxin Shenshang" project of Wuxi Vocational and Technical College, introduced the project content and practice process.

Yang Jiaying, student representative of the "Juxin Shenshang" project of Wuxi Vocational and Technical College

Yang Jiaying mentioned that in recent years, lithium battery safety problems have emerged in an endless stream, and the cause of accidents is mostly the problem of continuous charging overheating caused by battery overcharging or internal short circuit. In view of reducing the discharge loss of lithium battery packs, extending the service life of lithium battery packs, reducing the occurrence of safety accidents in lithium battery packs, and improving the operational efficiency of lithium battery packs, Yang Jiaying's project team began to develop lithium battery management control systems in 2019, and designed an efficient lithium battery management control system suitable for multiple scenarios.

The core technology of the project is based on the Kalman filtering method, which accurately estimates the battery margin, optimizes the remaining battery power after estimation, and realizes the current and voltage balance between the battery packs by peak shaving and valley filling, so as to ensure that the battery has higher endurance and maximize the safety of the battery pack.

At present, the project is mainly engaged in the development and sales of lithium battery management control system and battery pack, and has entered the start-up stage at this stage, obtained a number of utility model patents, and the products have been adopted and used by many new energy enterprises.

Yang Jiaying said that innovation and entrepreneurship education is an important quality that young people need to have in the 21st century, juxtaposed with academic education and vocational education, will lead the reform of education and teaching in colleges and universities to the depth, and in the future, more and more aspiring young people will devote themselves to the tide of innovation and entrepreneurship, and write their own youth chapter in the struggle.