journal article·2019-08-27Open access

Everlasting Living and Breathing Gyroid 3D Network in Si@SiOx/C Nanoarchitecture for Lithium Ion Battery

Jaewoo Lee, Janghyuk Moon, Sang A Han, Junyoung Kim, Victor Malgras, Yoon-Uk Heo, Hansu Kim, Sang-Min Lee, Hua Kun Liu, Shi Xue Dou, Yusuke Yamauchi, Min-Sik Park, Jung Ho Kim

ACS Nano· Volume 13· Issue 8

Abstract

Silicon-based materials are the most promising candidates to surpass the capacity limitation of conventional graphite anode for lithium ion batteries. Unfortunately, Si-based materials suffer from poor cycling performance and dimensional instability induced by the large volume changes during cycling. To resolve such problems, nanostructured silicon-based materials with delicately controlled microstructure and interfaces have been intensively investigated. Nevertheless, they still face problems related to their high synthetic cost and their limited electrochemical properties and thermal stability. To overcome these drawbacks, we demonstrate the strategic design and synthesis of a gyroid three-dimensional network in a Si@SiOx/C nanoarchitecture (3D-Si@SiOx/C) with synergetic interaction between the computational prediction and the synthetic optimization. This 3D-Si@SiOx/C exhibits not only excellent electrochemical performance due to its structural stability and superior ion/electron transport but also enhanced thermal stability due to the presence of carbon, which was formed by a cost-effective one-pot synthetic route. We believe that our rationally designed 3D-Si@SiOx/C will lead to the development of anode materials for the next-generation lithium ion batteries.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong 2500, NSW, Australia

School of Energy Systems Engineering, Chung-Ang University, Heukseok-Ro, Dongjak-Gu, Seoul 06974, Republic of Korea

School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea

Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea

International Center for Young Scientists & International Centre for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, San 31, Hyoja-Dong, Pohang 37673, Republic of Korea

Department of Energy Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea

Battery Research Center, Korea Electrotechnology Research Institute, 12 Bulmosan-ro, 10 beon-gil, Seongsan-gu, Changwon 51543, Republic of Korea

School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, QLD, Australia

Funding

National Research Foundation of Korea · Samsung Research Funding Center of Samsung Electronics

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