Metal-ligand Coordination Induced Rapid Li+ Transport Kinetics through Bidirectional Anchoring Strategy

Authors

  • Jiajun Zhu School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Ziqiang Xu Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China Author
  • Wenxi Yang School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Zhengwei Li School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Yongqing Yang School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Jintian Wu School of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, China Author
  • Haiping Zhou School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Zixuan Fang School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Ming Zhang School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China Author
  • Mengqiang Wu Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China Author

DOI:

https://doi.org/10.47363/JBBER/2025(3)129

Keywords:

Solid State Batteries, Metal-Ligand Coordination, Anchoring Effect, Composite Cathode, Lithium Metal Batteries

Abstract

The unstable interfacial contact and slow Li+ transport at the side of cathode have been two major challenges for practical application of garnet-based solid-state batteries (SSBs). In this work, a strategy of metal-ligand coordination induced rapid Li+ transport kinetics through bidirectional anchoring is proposed to address aforementioned issues by decorating the cathode with Li6.4La3Zr1.4Ta0.6O12 (LLZTO) nanoparticles and stabilizing the interface with succinonitrile-based interlayer (SL). The strong metal- ligand coordination of the -CN in SL with the LLZTO solid-state electrolytes and the LiCoO2 (LCO)@LLZTO composite cathode enables an intimate contact at the atomic scale, constructing bidirectional channels of fast Li+ transport at the interface. Additionally, LLZTO nanoparticles within the composite cathode establish three- dimensional (3D) channels of fast Li+ transport. The synergistic effect of the bidirectional channels of fast Li+ transport at the interface and 3D channels of Li+ transport at internal cathode achieves rapid Li+ transport kinetics at the cathode side. As a result, a high-capacity retention of 80.6% after 700 cycles at 0.1 C is achieved for the LCO@LLZTO(SL)|LLZTO|Li batteries (3.0-4.2 V, 3 mg·cm-2). It also exhibits excellent cycling performance even at high voltages of 3.0-4.4 V. This work offers a new possibility for fabricating ultra-stable SSBs.

Author Biographies

  • Jiajun Zhu, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Ziqiang Xu, Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China

    Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China

  • Wenxi Yang, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Zhengwei Li, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Yongqing Yang, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Jintian Wu, School of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, China


    School of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

  • Haiping Zhou, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Zixuan Fang, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Ming Zhang, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

    School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China

  • Mengqiang Wu, Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China

    Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China

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Published

2025-12-29

Issue

Vol. 3 No. 2 (2025): Volume 3 Issue 2

Section

Articles