Roll-To-Roll Fabrication of Zero-Volume-Expansion Lithium-Composite Anodes to Realize High-Energy-Density Flexible and Stable Lithium-Metal Batteries

Luo, Chao1; Hu, Hong2; Zhang, Tian1,3; Wen, Shujing1; Wang, Ruo1; An, Yanan4; Chi, Shang-Sen1; Wang, Jun1; Wang, Chaoyang4; Chang, Jian1; Zheng, Zijian2,5,6; Deng, Yonghong1

2022-08-01

10.1002/adma.202205677

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

The lithium (Li)-metal anode offers a promising solution for high-energy-density lithium-metal batteries (LMBs). However, the significant volume expansion of the Li metal during charging results in poor cycling stability as a result of the dendritic deposition and broken solid electrolyte interphase. Herein, a facile one-step roll-to-roll fabrication of a zero-volume-expansion Li-metal-composite anode (zeroVE-Li) is proposed to realize high-energy-density LMBs with outstanding electrochemical and mechanical stability. The zeroVE-Li possesses a sandwich-like trilayer structure, which consists of an upper electron-insulating layer and a bottom lithiophilic layer that synergistically guides the Li deposition from the bottom up, and a middle porous layer that eliminates volume expansion. This sandwich structure eliminates dendrite formation, prevents volume change during cycling, and provides outstanding flexibility to the Li-metal anode even at a practical areal capacity over 3.0 mAh cm(-2). Pairing zeroVE-Li with a commercial NMC811 or LCO cathode, flexible LMBs that offer a record-breaking figure of merit (FOM, 45.6), large whole-cell energy density (375 Wh L-1, based on the volume of the anode, separator, cathode, and package), high-capacity retention (> 99.8% per cycle), and remarkable mechanical robustness under practical conditions are demonstrated.

;

The lithium (Li)-metal anode offers a promising solution for high-energy-density lithium-metal batteries (LMBs). However, the significant volume expansion of the Li metal during charging results in poor cycling stability as a result of the dendritic deposition and broken solid electrolyte interphase. Herein, a facile one-step roll-to-roll fabrication of a zero-volume-expansion Li-metal-composite anode (zeroVE-Li) is proposed to realize high-energy-density LMBs with outstanding electrochemical and mechanical stability. The zeroVE-Li possesses a sandwich-like trilayer structure, which consists of an upper electron-insulating layer and a bottom lithiophilic layer that synergistically guides the Li deposition from the bottom up, and a middle porous layer that eliminates volume expansion. This sandwich structure eliminates dendrite formation, prevents volume change during cycling, and provides outstanding flexibility to the Li-metal anode even at a practical areal capacity over 3.0 mAh cm(-2). Pairing zeroVE-Li with a commercial NMC811 or LCO cathode, flexible LMBs that offer a record-breaking figure of merit (FOM, 45.6), large whole-cell energy density (375 Wh L-1, based on the volume of the anode, separator, cathode, and package), high-capacity retention (> 99.8% per cycle), and remarkable mechanical robustness under practical conditions are demonstrated.

Composite Electrodes Dendrite Deposition Flexible Batteries Lithium Metal Volume Expansion Composite Electrodes Dendrite Deposition Flexible Batteries Lithium Metal Volume Expansion

SCI ; EI

英语

NI期刊 ; NI论文

第一 ; 通讯

Key-Area Research and Development Program of Guangdong Province[ ; Key-Area Research and Development Program of Guangdong Province[

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

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

WOS:000842814000001

WILEY-V C H VERLAG GMBH

20223512631838

Anodes ; Cathodes ; Expansion ; Fabrication ; Lithium ; Lithium Batteries ; Mechanical Stability ; Solid Electrolytes ; Anodes ; Cathodes ; Expansion ; Fabrication ; Lithium ; Lithium Batteries ; Mechanical Stability ; Solid Electrolytes

Lithium And Alloys:542.4 ; Alkali Metals:549.1 ; Primary Batteries:702.1.1 ; Electron Tubes:714.1 ; Chemical Operations:802.3 ; Chemical Agents And Basic Industrial Chemicals:803 ; Materials Science:951 ; Lithium And Alloys:542.4 ; Alkali Metals:549.1 ; Primary Batteries:702.1.1 ; Electron Tubes:714.1 ; Chemical Operations:802.3 ; Chemical Agents And Basic Industrial Chemicals:803 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Dept Mat Sci & Engn, Shenzhen Key Lab Solid State Batteries, Shenzhen 518055, Peoples R China
2.Hong Kong Polytech Univ, Inst Text & Clothing, Kowloon, Hong Kong, Peoples R China
3.City Univ Hong Kong, Dept Mat Sci & Engn, 83 Tat Chee Ave, Hong Kong, Peoples R China
4.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Peoples R China
5.Hong Kong Polytech Univ, Res Inst Smart Energy, Res Inst Intelligent Wearable Syst, Hong Kong, Peoples R China
6.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China

Luo, Chao,Hu, Hong,Zhang, Tian,et al. Roll-To-Roll Fabrication of Zero-Volume-Expansion Lithium-Composite Anodes to Realize High-Energy-Density Flexible and Stable Lithium-Metal Batteries[J]. ADVANCED MATERIALS,2022.

Luo, Chao.,Hu, Hong.,Zhang, Tian.,Wen, Shujing.,Wang, Ruo.,...&Deng, Yonghong.(2022).Roll-To-Roll Fabrication of Zero-Volume-Expansion Lithium-Composite Anodes to Realize High-Energy-Density Flexible and Stable Lithium-Metal Batteries.ADVANCED MATERIALS.

Luo, Chao,et al."Roll-To-Roll Fabrication of Zero-Volume-Expansion Lithium-Composite Anodes to Realize High-Energy-Density Flexible and Stable Lithium-Metal Batteries".ADVANCED MATERIALS (2022).