Data–Knowledge‐Dual‐Driven Electrolyte Design for Fast‐Charging Lithium Ion Batteries
Abstract
Abstract Electric vehicles (EVs) starve for minutes‐level fast‐charging lithium‐ion batteries (LIBs), while the heat gathering at high‐rate charging and torridity conditions has detrimental effects on electrolytes, triggering rapid battery degradation and even safety hazards. However, the current research on high‐temperature fast‐charging (HTFC) electrolytes is very lacking. We revolutionized the conventional paradigm of developing HTFC electrolytes integrating with high‐throughput calculation, machine‐learning techniques, and experimental verifications to establish a data–knowledge‐dual‐driven approach. Ethyl trimethylacetate was efficiently screened out based on the approach and enabled batteries to work under high temperatures with distinctly restricted side reactions. A stable and highly safe fast‐charging (15‐min charging to 80% capacity) cycling without Li plating was achieved over 4100 cycles at 45 °C based on 181 Wh kg −1 pouch cells, demonstrating the state‐of‐the‐art in this field.
Article Details
Authors (20)
Yi Yang
Nan Yao
Yu‐Chen Gao
Beijing Key Laboratory of Complex Solid State Batteries Department of Chemical Engineering Tsinghua University Beijing P. R. China
Xiang Chen
Yu‐Xin Huang
Beijing Key Laboratory of Complex Solid State Batteries Tsinghua Center for Green Chemical Engineering Electrification Department of Chemical Engineering Tsinghua University Beijing 100084 P.R. China
Shuo Zhang
Han‐Bing Zhu
Beijing Key Laboratory of Complex Solid State Batteries Tsinghua Center for Green Chemical Engineering Electrification Department of Chemical Engineering Tsinghua University Beijing 100084 P.R. China
Lei Xu
Yu‐Xing Yao
Beijing Key Laboratory of Complex Solid State Batteries Tsinghua Center for Green Chemical Engineering Electrification Department of Chemical Engineering Tsinghua University Beijing 100084 P.R. China
Shi‐Jie Yang
School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
Zheng Liao
School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
Zeheng Li
Xue‐Fei Wen
Shanxi Research Institute for Clean Energy Tsinghua University Taiyuan 030032 P. R. China
Peng Wu
Ting‐Lu Song
School of Materials Science and Engineering, Beijing Institute of Technology Beijing 100081 P.R. China
Jin‐Hao Yao
Beijing Key Laboratory of Complex Solid State Batteries Tsinghua Center for Green Chemical Engineering Electrification Department of Chemical Engineering Tsinghua University Beijing 100084 P.R. China
Jiang‐Kui Hu
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 P.R. China
Chong Yan
School of Materials Science and Engineering
Jia‐Qi Huang
School of Interdisciplinary Science Beijing Institute of Technology Beijing P. R. China
Qiang Zhang