@article{02ce355404294138a6eec866f6396d07,
title = "Metallic Glass-Fiber Fabrics: A New Type of Flexible, Super-Lightweight, and 3D Current Collector for Lithium Batteries",
abstract = "Current collectors are indispensable parts that provide electron transport and mechanical support of electrode materials in a battery. Nowadays, thin metal foils made of Cu and Al are used as current collectors of lithium batteries, but they do not contribute to the storage capacity. Therefore, decreasing the weight of current collectors can directly enhance the energy density of a battery. However, limited by the requirements of mechanical strength, it is difficult to reduce the weight of metal foils any further. Herein, a new type of current collectors made of 3D metallic glass-fiber fabrics (MGFs), which shows advantages of super-lightweight (2.9–3.2 mg cm⁻2), outstanding electrochemical stability for cathodes and anodes of lithium-ion and lithium-metal batteries (LMBs), fire resistance, high strength, and flexibility suitable for roll-to-roll electrode fabrication is reported. The gravimetric energy densities of lithium batteries exhibit improvements of 9–18% by only replacing the metal foils with the MGFs. In addition, MGFs are suitable for the fabrication of flexible batteries. A high-energy-density flexible lithium battery with an outstanding figure of merit of flexible battery (fbFOM) and flexing stability is demonstrated.",
keywords = "current collectors, flexible batteries, glass fibers, lithium batteries, metallic fabrics",
author = "Jian Shang and Wancheng Yu and Lei Wang and Chuan Xie and Hailong Xu and Wenshuo Wang and Qiyao Huang and Zijian Zheng",
note = "Funding Information: J.S., W.Y., and L.W. contributed equally to this work. The authors acknowledge the finical support from Science and Technology Bureau of Huangpu District (2020GH03), Innovation and Technology Fund‐Partnership Research Programme (PRP/055/21FX), Innovation and Technology Fund‐Guangdong Hong Kong Technology Cooperation Funding Scheme (GHP/047/20GD), Guangdong‐Hong Kong‐Macau Joint Laboratory for Photonic‐Thermal‐Electrical Energy Materials and Devices (GDSTC No.2019B121205001), and Hong Kong Branch of National Precious Metals Material Engineering Research Center. The authors also acknowledge Dr. Yuan Gao, Dr. Yufeng Luo, Yuqi Zhang, and Dr. Yi Pei, for their valuable discussion of the design of MGFs and flexible batteries. Special thanks to Dr. Lejuan Cai (Songshan Lake Materials Laboratory) for figure drawing and revising. The authors also thank Prof. Yonghong Deng from the Southern University of Science and Technology and CAPCHEM for providing some battery materials for experiments. Funding Information: J.S., W.Y., and L.W. contributed equally to this work. The authors acknowledge the finical support from Science and Technology Bureau of Huangpu District (2020GH03), Innovation and Technology Fund-Partnership Research Programme (PRP/055/21FX), Innovation and Technology Fund-Guangdong Hong Kong Technology Cooperation Funding Scheme (GHP/047/20GD), Guangdong-Hong Kong-Macau Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices (GDSTC No.2019B121205001), and Hong Kong Branch of National Precious Metals Material Engineering Research Center. The authors also acknowledge Dr. Yuan Gao, Dr. Yufeng Luo, Yuqi Zhang, and Dr. Yi Pei, for their valuable discussion of the design of MGFs and flexible batteries. Special thanks to Dr. Lejuan Cai (Songshan Lake Materials Laboratory) for figure drawing and revising. The authors also thank Prof. Yonghong Deng from the Southern University of Science and Technology and CAPCHEM for providing some battery materials for experiments. Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",
year = "2023",
month = jun,
day = "28",
doi = "10.1002/adma.202211748",
language = "English",
volume = "35",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-Blackwell",
number = "26",
}