车载锂离子动力电池安全管理与高效利用的基础理论与关键技术

锂离子动力电池以高比能量、低自放电率及长寿命而著称，是目前发展最快、前景最好的新能源汽车动力电池，但其安全性、使用性能和寿命等核心问题并未得到根本解决，遂成为制约电动汽车大规模推广应用的关键瓶颈。本项目拟首先基于分数阶理论和数据驱动实现锂离子动力电池准确建模；基于自适应无迹卡尔曼滤波实现动力电池多状态联合估计。其次，运用群智能多目标优化、随机系统最优控制等新理论与新方法研究车载锂离子动力电池安全高效充放电与均衡控制策略；再次，建立动力电池热模型及热失控模型并设计先进的热管理系统；基于多源信息融合理论建立多级安全预警机制，设计面向安全性的电池管理系统。最后，基于整车硬件在环实验平台验证新理论方法及关键技术的有效性。本课题属于控制理论、电化学、车辆工程等多学科交叉领域，对促进相关学科的基础理论研究和应用、发展我国动力电池及相关产业、解决环境能源危机具有重大的理论价值和现实意义。

Lithium ion power battery is famous for high-energy-density, low self-discharge rate and long service life, and becomes the fastest developing and most promising new energy vehicle power battery . Unfortunately, the issues of its decreased lifetime and poor security haven't been resolved which become the bottleneck that restricts the comprehensive applications of electric vehicles. Firstly, this project aims at realizing accurate lithium ion power battery modeling based on data-driven theory and fractional theory; realizing power battery multi-state joint estimation based on Adaptive Unscented Kalman Filter; Then vehicle lithium ion power battery safe and efficient charge&discharge control strategy and equilization control will be researched by comprehensively using new theories and new methods such as swarm intelligence multi-objective optimization and stochastic optimal control. Next, the battery thermal model and thermal runaway model will be built and advanced thermal management system will be designed. Multilevel security warning mechanism will be built based on multi-source information fusion theory and battery management system which aims at safety will be designed. In the end, the proposed new theoretical methods and key technologies will be verified based on the vehicle hardware in loop experiment platform. This project belongs to interdisciplinary fields such as control theory, electrochemistry, vehicle engineering and so on, which is of great theory value and practical significance in promoting basic theories and applications in related study fields, developing China's power battery industries and solving the environment and energy crisis .