Bipolar Textile Composite Electrodes Enabling Flexible Tandem Solid-State Lithium Metal Batteries

Wei, Zhenyao1,2; Luo, Yufeng3; Yu, Wancheng3; Zhang, Yufei2; Cai, Jiehua2; Xie, Chuan3; Chang, Jian4; Huang, Qiyao2,5; Xu, Xiaoxiong1; Deng, Yonghong1; Zheng, Zijian2,3,5,6

2024-07-01

10.1002/adma.202406386

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

["A majority of flexible and wearable electronics require high operational voltage that is conventionally achieved by serial connection of battery unit cells using external wires. However, this inevitably decreases the energy density of the battery module and may cause additional safety hazards. Herein, a bipolar textile composite electrode (BTCE) that enables internal tandem-stacking configuration to yield high-voltage (6 to 12 V class) solid-state lithium metal batteries (SSLMBs) is reported. BTCE is comprised of a nickel-coated poly(ethylene terephthalate) fabric (NiPET) core layer, a cathode coated on one side of the NiPET, and a Li metal anode coated on the other side of the NiPET. Stacking BTCEs with solid-state electrolytes alternatively leads to the extension of output voltage and decreased usage of inert package materials, which in turn significantly boosts the energy density of the battery. More importantly, the BTCE-based SSLMB possesses remarkable capacity retention per cycle of over 99.98% over cycling. The composite structure of BTCE also enables outstanding flexibility; the battery keeps stable charge/discharge characteristics over thousands of bending and folding. BTCE shows great promise for future safe, high-energy-density, and flexible SSLMBs for a wide range of flexible and wearable electronics.","A bipolar textile composite electrode (BTCE) is fabricated by sandwiching the nickel-coated poly(ethylene terephthalate) fabric (NiPET) with the cathode and Li metal anode layers. The energy density of BTCE-based solid-state lithium metal batteries increases significantly. More impressively, benefiting from the outstanding flexibility of BTCE, the pouch cell shows zero capacity decay under thousands of bending and folding tests. image"]

bipolar electrode flexible and wearable electronics high-voltage battery solid-state lithium metal batteries textile composite electrode

SCI ; EI

英语

第一 ; 通讯

National Key R&D Program of China[2022YFB3807700] ; Research Grant Council["CRS_PolyU504/22","R5019-22F"] ; Innovation and Technology Fund[GHP/047/20GD] ; Guangdong Special[2021TX06L775] ; Shenzhen Science and Technology Program[JCYJ20220818100407016]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001263650600001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
2.Hong Kong Polytech Univ, Sch Fash & Text, Hong Kong 999077, Peoples R China
3.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong 999077, Peoples R China
4.Great Bay Univ, Sch Phys Sci, Dongguan Key Lab Interdisciplinary Sci Adv Mat & L, Dongguan 523000, Guangdong, Peoples R China
5.Hong Kong Polytech Univ, Res Inst Intelligent Wearable Syst, Hong Kong 999077, Peoples R China
6.Hong Kong Polytech Univ, Res Inst Smart Energy, Hong Kong 999077, Peoples R China

Wei, Zhenyao,Luo, Yufeng,Yu, Wancheng,et al. Bipolar Textile Composite Electrodes Enabling Flexible Tandem Solid-State Lithium Metal Batteries[J]. ADVANCED MATERIALS,2024.

Wei, Zhenyao.,Luo, Yufeng.,Yu, Wancheng.,Zhang, Yufei.,Cai, Jiehua.,...&Zheng, Zijian.(2024).Bipolar Textile Composite Electrodes Enabling Flexible Tandem Solid-State Lithium Metal Batteries.ADVANCED MATERIALS.

Wei, Zhenyao,et al."Bipolar Textile Composite Electrodes Enabling Flexible Tandem Solid-State Lithium Metal Batteries".ADVANCED MATERIALS (2024).