Nano-Micro Letters ›› 2024, Vol. 16 ›› Issue (1): 130-. doi: 10.1007/s40820-024-01341-4

• REVIEW • Previous Articles     Next Articles

Insights into Nano- and Micro-Structured Scaffolds for Advanced Electrochemical Energy Storage

Jiajia Qiu1,2, Yu Duan1, Shaoyuan Li2, Huaping Zhao1, Wenhui Ma2,4,*(), Weidong Shi3,*(), Yong Lei1,*()   

  1. 1 Fachgebiet Angewandte Nanophysik, Institut Für Physik and IMN MacroNano, Technische Universität Ilmenau, 98693, Ilmenau, Germany
    2 Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, People’s Republic of China
    3 School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, People’s Republic of China
    4 School of Science and Technology, Pu’er University, Pu’er, 665000, People’s Republic of China
  • Received:2023-10-07 Accepted:2023-12-30 Online:2024-01-01 Published:2024-02-23
  • Contact: Wenhui Ma, Weidong Shi, Yong Lei
  • About author:

    Jiajia Qiu, Yu Duan, and Shaoyuan Li have contributed equally to this work.

Abstract:

Adopting a nano- and micro-structuring approach to fully unleashing the genuine potential of electrode active material benefits in-depth understandings and research progress toward higher energy density electrochemical energy storage devices at all technology readiness levels. Due to various challenging issues, especially limited stability, nano- and micro-structured (NMS) electrodes undergo fast electrochemical performance degradation. The emerging NMS scaffold design is a pivotal aspect of many electrodes as it endows them with both robustness and electrochemical performance enhancement, even though it only occupies complementary and facilitating components for the main mechanism. However, extensive efforts are urgently needed toward optimizing the stereoscopic geometrical design of NMS scaffolds to minimize the volume ratio and maximize their functionality to fulfill the ever-increasing dependency and desire for energy power source supplies. This review will aim at highlighting these NMS scaffold design strategies, summarizing their corresponding strengths and challenges, and thereby outlining the potential solutions to resolve these challenges, design principles, and key perspectives for future research in this field. Therefore, this review will be one of the earliest reviews from this viewpoint.

Key words: Nano- and micro-structured, Interconnected porous, Scaffolds, Electrode design, Electrochemical energy storage