3D Pathways Enabling Highly‐Efficient Lithium Reservoir for Fast‐Charging Batteries

Author:

Han Sang A1,Suh Joo Hyeong2,Kim Junyoung2,Park Sungmin2,Jeong Won Ung2,Shimada Yusuke3,Kim Jung Ho1ORCID,Park Min‐Sik2,Dou Shi Xue14

Affiliation:

1. Institute for Superconducting & Electronic Materials (ISEM) Australian Institute of Innovative Materials (AIIM) University of Wollongong Innovation Campus, Squires Way North Wollongong NSW 2500 Australia

2. Department of Advanced Materials Engineering for Information and Electronics Integrated Education Institute for Frontier Science & Technology (BK21 Four) Kyung Hee University 1732 Deogyeong‐daero, Giheung‐gu Yongin 17104 Republic of Korea

3. Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences Kyushu University 744 Motooka, Nishi‐ku Fukuoka 819‐0395 Japan

4. Institute of Energy Materials Science (IEMS) University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China

Abstract

AbstractEnhancing the mobility of lithium‐ions (Li+) through surface engineering is one of major challenges facing fast‐charging lithium‐ion batteries (LIBs). In case of demanding charging conditions, the use of a conventional artificial graphite (AG) anode leads to an increase in operating temperature and the formation of lithium dendrites on the anode surface. In this study, a biphasic zeolitic imidazolate framework (ZIF)‐AG anode, designed strategically and coated with a mesoporous material, is verified to improve the pathways of Li+ and electrons under a high charging current density. In particular, the graphite surface is treated with a coating of a ZIF‐8‐derived carbon nanoparticles, which addresses sufficient surface porosity, enabling this material to serve as an electrolyte reservoir and facilitate Li+ intercalation. Moreover, the augmentation in specific surface area proves advantageous in reducing the overpotential for interfacial charge transfer reactions. In practical terms, employing a full‐cell with the biphasic ZIF‐AG anode results in a shorter charging time and improved cycling performance, demonstrating no evidence of Li plating during 300 cycles under 3.0 C‐charging and 1.0 C‐discharging. The research endeavors to contribute to the progress of anode materials by enhancing their charging capability, aligning with the increasing requirements of the electric vehicle applications.

Funder

National Research Foundation of Korea

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

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