Статья

Atomic Interface Engineering and Electric‐Field Effect in Ultrathin Bi<sub>2</sub>MoO<sub>6</sub> Nanosheets for Superior Lithium Ion Storage

Yang ZhengInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 AustraliaTengfei ZhouInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 AustraliaXudong ZhaoInstitute of New Energy Material Chemistry School of Materials Science and Engineering Nankai University Tianjin 300071 ChinaWei Kong PangInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 AustraliaHong GaoInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 AustraliaSean LiSchool of Materials Science and Engineering University of New South Wales NSW 2052 AustraliaZhen ZhouInstitute of New Energy Material Chemistry School of Materials Science and Engineering Nankai University Tianjin 300071 ChinaHuan LiuInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 AustraliaZhanhu GuoInstitute for Superconducting & Electronic Materials School of Mechanical, Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 Australia

2017en

ABI

Аннотация

Ultrathin 2D materials can offer promising opportunities for exploring advanced energy storage systems, with satisfactory electrochemical performance. Engineering atomic interfaces by stacking 2D crystals holds huge potential for tuning material properties at the atomic level, owing to the strong layer–layer interactions, enabling unprecedented physical properties. In this work, atomically thin Bi 2 MoO 6 sheets are acquired that exhibit remarkable high‐rate cycling performance in Li‐ion batteries, which can be ascribed to the interlayer coupling effect, as well as the 2D configuration and intrinsic structural stability. The unbalanced charge distribution occurs within the crystal and induces built‐in electric fields, significantly boosting lithium ion transfer dynamics, while the extra charge transport channels generated on the open surfaces further promote charge transport. The in situ synchrotron X‐ray powder diffraction results confirm the material's excellent structural stability. This work provides some insights for designing high‐performance electrode materials for energy storage by manipulating the interface interaction and electronic structure.

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Идентификаторы

DOI: 10.1002/adma.201700396

Цитирования и источники

Цитирований: 3Использованных источников: 0

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