Safety Assessment of Large‐Format Quasi‐Solid‐State Lithium‐Ion Batteries
Advanced Energy Materials, vol. 16
Abstract
Abstract Quasi‐solid‐state batteries (QSSBs) are currently a promising energy storage technology toward high manufacturability and lower internal resistance compared to all‐solid‐state batteries. However, the safety performance of QSSBs under various abuse conditions, particularly concerning combustion and explosion, remains inadequately characterized. Herein, the thermal runaway (TR) behavior of 32 Ah QSSBs is evaluated with an energy density of 300 Wh kg −1 under thermal and electrical abuse. Accelerating rate calorimeter tests reveal that the QSSBs exhibit a lower peak temperature rise rate (114 °C s −1 ) and a longer self‐heating duration (1513 min) compared to conventional LiNi 0.8 Co 0.1 Mn 0.1 O 2 ‐based lithium‐ion batteries (LIBs). Fast‐charging tests under high preloads show that TR intensity increases with the charging rate, accompanied by violent gas release and flame ejection. Higher preload delays the initiation of TR but intensifies the associated hazards. Gas analysis shows lower gas production (0.76 L Ah −1 ) and narrower explosion limits than most liquid‐electrolyte LIBs. This study highlights the milder thermal and gas production behavior of QSSBs, providing valuable insights for the advancement of high‐specific‐energy storage systems, such as long‐range electric vehicles and power sources for aircraft.
Authors 9
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Beijing Institute of Technology
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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Beijing Institute of Technology
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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Affiliation as printed
School of Chemistry and Chemical Engineering North University of China Taiyuan 030051 China
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Lvye Dou corresponding
University of Science and Technology Beijing
Affiliation as printed
School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
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Beijing Institute of Technology
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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Yiwen Zhao Aachen Institute for Power Electronics and Electrical Drives (ISEA) Center for Ageing Reliability and Lifetime Prediction of Electrochemical and Power Electronics Systems (CARL)
RWTH Aachen University · Beijing Institute of Technology
Affiliation as printed
Center for Ageing Reliability and Lifetime Prediction of Electrochemical and Power Electronics Systems (CARL) RWTH Aachen University Campus‐Boulevard 89 52074 Aachen Germany
Institute for Power Electronics and Electrical Drives (ISEA) RWTH Aachen University Campus‐Boulevard 89 52074 Aachen Germany
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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Beijing Institute of Technology · State Administration for Market Regulation
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
Technology Innovation Center of Traceability and Prevention and Control of New Energy Vehicle Fires State Administration for Market Regulation Chongqing 401329 China
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Beijing Institute of Technology
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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Lei Li corresponding
Beijing Institute of Technology
Affiliation as printed
National Engineering Research Center of Electric Vehicles Beijing Co‐innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing 100081 China
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