Toward scale-up of solid-state battery via dry electrode technology
Yuan Liu,
Huaiyu Shao,
Junpo Guo,
Han Yu,
Hongli Xu,
Xiaoxiong Xu,
Yonghong Deng,
Jun Wang,
He Yan
Affiliations
Yuan Liu
Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Huaiyu Shao
Guangdong-Hong Kong-Macau Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, China
Junpo Guo
Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China; Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China; Corresponding authors.
Han Yu
Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China; Hong Kong University of Science and Technology-Shenzhen Research Institute, Nanshan, Shenzhen 518057, China
Hongli Xu
Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Xiaoxiong Xu
Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Yonghong Deng
Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Jun Wang
Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China; Corresponding authors.
He Yan
Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China; Hong Kong University of Science and Technology-Shenzhen Research Institute, Nanshan, Shenzhen 518057, China; Guangdong-Hong Kong Joint Laboratory for Carbon Neutrality, Jiangmen Laboratory of Carbon Science and Technology, Jiangmen, Guangdong Province 529199, China; Corresponding authors.
Solid-state batteries (SSBs) with projected high safety and high-energy density have been heavily pursued as the next generation of electrochemical storage devices, while their realization still faces challenges, including scalable fabrication process, high-loading electrode, and robust thin solid electrolyte. Dry electrode technology (DET) is an emerging battery preparation method that embodies with numerous advantages, including simplified production procedures, loading-enhanced electrode, as well as elimination of solvent sensitivity. Currently, the DET is of great interest for its potential capability in upgrading the slurry-based SSB system that we are experiencing. Herein, the issues encountered in the wet process and the corresponding remedies by DET are introduced, followed by a summarization of multiple DET methodologies. The latest developments of DET are analyzed separately in terms of its application in cathode, anode, and solid electrolytes with emphasis on manufacturing method and material science. Binder selection, which has a growing influence on the quality of the dry film, is discussed as well. Based on the insights acquired, future potential attempts at DET are proposed to meet the goal of SSB commercialization.
