Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes

Yu‐Long Liao; Xi‐Long Wang; Hong Yuan; Yong‐Jian Li; Chun‐Ming Xu; Shuai Li; Jiang‐Kui Hu; Shi‐Jie Yang; Fang Deng; Jia Liu; Jia‐Qi Huang

doi:10.1002/adma.202419782

journal article Jan 31, 2025

Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes

Yu‐Long Liao Xi‐Long Wang Hong Yuan

Yong‐Jian Li Chun‐Ming Xu Shuai Li

Jiang‐Kui Hu Shi‐Jie Yang Fang Deng

Jia Liu

Jia‐Qi Huang

Advanced Materials Vol. 37 No. 10 · Wiley

View at Publisher Save 10.1002/adma.202419782

Abstract

AbstractSolid‐state lithium (Li) metal batteries (SSLMBs) have garnered considerable attention due to their potential for high energy density and intrinsic safety. However, their widespread development has been hindered by the low ionic conductivity of solid‐state electrolytes. In this contribution, a novel Li‐rich transport mechanism is proposed to achieve ultrafast Li‐ion conduction in composite solid‐state electrolytes. By incorporating cation‐deficient dielectric nanofillers into polymer matrices, it is found that negatively charged cation defects effectively intensify the adsorption of Li ions, resulting in a high Li‐ion concentration enrichment on the surface of fillers. More importantly, these formed Li‐rich layers are interconnected to establish continuous ultrafast Li‐ion transport networks. The composite electrolyte exhibited a remarkably low ion transport activation energy (0.17 eV) and achieved an unprecedented ionic conductivity of approaching 1 × 10⁻3 S cm⁻1 at room temperature. The Li||LiNi0.8Co0.1Mo0.1O2 full cells demonstrated an extended cycling life of over 200 cycles with a capacity retention of 70.7%. This work provides a fresh insight into improving Li‐ion transport by constructing interconnected Li‐rich transport networks, paving the way for the development of high‐performance SSLMBs.

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Metrics

67

Citations

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References

Details

Published: Jan 31, 2025
Vol/Issue: 37(10)
License: View

Authors

Y

Yu‐Long Liao

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

X

Xi‐Long Wang

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

H

Hong Yuan

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

Y

Yong‐Jian Li

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China

C

Chun‐Ming Xu

School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 China

S

Shuai Li

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

J

Jiang‐Kui Hu

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

S

Shi‐Jie Yang

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

F

Fang Deng

National Key Lab of Autonomous Intelligent Unmanned Systems Beijing Institute of Technology Beijing 100081 China

J

Jia Liu

Beijing Key Laboratory of Lignocellulosic Chemistry College of Materials Science and Technology Beijing Forestry University Beijing 100083 China

J

Jia‐Qi Huang

School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China; Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China; Department of Chemical and Biomolecular Engineering Yonsei University Seoul 03722 Republic of Korea

Funding

National Natural Science Foundation of China Award: 22425901

Fundamental Research Funds for the Central Universities Award: 2023CX01031

Natural Science Foundation of Beijing Municipality Award: L223009

Cite This Article

Yu‐Long Liao, Xi‐Long Wang, Hong Yuan, et al. (2025). Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes. Advanced Materials, 37(10). https://doi.org/10.1002/adma.202419782

Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes

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