Topological design of ultrastrong MXene paper hosted Li enables ultrathin and fully flexible lithium metal batteries

Cao-Yu Wang; Zi-Jian Zheng; Yong-Qiang Feng; Huan Ye; Fei-Fei Cao; Zai-Ping Guo

doi:10.1016/j.nanoen.2020.104817

Topological design of ultrastrong MXene paper hosted Li enables ultrathin and fully flexible lithium metal batteries

Cao-Yu Wang (Co-first Author)
, Zi-Jian Zheng (Co-first Author)
, Yong-Qiang Feng
, Huan Ye^*
, Fei-Fei Cao^*
, Zai-Ping Guo^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

169 Citations (Scopus)

Abstract

Ultrathin Li metal anode with a thickness of <30 μm in combination with state-of-art cathodes could promise high-energy lithium metal batteries (LMBs). Here, we report a facile spin steaming technology to design the topological structures of Ti₃C₂T_x MXene film as Li host by mixing a trace of cellulose nanofiber (CNF). The interlocked topological microstructure between MXene sheets and microspheres-forming assisted by CNF contributes greatly to enhanced mechanical strength and flexibility of the resultant MXene@CNF film. More importantly, the MXene sheets with abundant Li nucleation sites shows a desirable affinity for Li. As a result, a flexible, ultrathin (~25 μm), and self-supporting MXene@CNF/Li composite anode without rampant Li dendrites, and with favorable cycling stability with high real capacity of Li is realized. The as-obtained hybrid Li anode matches with flexible self-supporting LiFePO₄/cellulose nanofiber (LFP@CNF) cathodes to construct fully flexible LMBs with high specific capacity and outstanding stability. © 2020 Elsevier Ltd.

Original language	English
Article number	104817
Journal	Nano Energy
Volume	74
Online published	1 May 2020
DOIs	https://doi.org/10.1016/j.nanoen.2020.104817
Publication status	Published - Aug 2020
Externally published	Yes

Funding

This work was supported by the National Natural Science Foundation of China (Grant nos. 21805105, 21975091, 21773078, and 51703052), the Fundamental Research Funds for the Central Universities of China (2662017QD028), the Science and Technology Department of Hubei Province (2018FB238), and a Discovery Early Career Researcher Award (DECRA, No. DE200101103) of the Australian Research Council.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Flexible devices
Lithium metal anodes
Lithium metal batteries
Ti3C2Tx MXene
Topological structure

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10.1016/j.nanoen.2020.104817

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title = "Topological design of ultrastrong MXene paper hosted Li enables ultrathin and fully flexible lithium metal batteries",

abstract = "Ultrathin Li metal anode with a thickness of <30 μm in combination with state-of-art cathodes could promise high-energy lithium metal batteries (LMBs). Here, we report a facile spin steaming technology to design the topological structures of Ti3C2Tx MXene film as Li host by mixing a trace of cellulose nanofiber (CNF). The interlocked topological microstructure between MXene sheets and microspheres-forming assisted by CNF contributes greatly to enhanced mechanical strength and flexibility of the resultant MXene@CNF film. More importantly, the MXene sheets with abundant Li nucleation sites shows a desirable affinity for Li. As a result, a flexible, ultrathin (\textasciitilde{}25 μm), and self-supporting MXene@CNF/Li composite anode without rampant Li dendrites, and with favorable cycling stability with high real capacity of Li is realized. The as-obtained hybrid Li anode matches with flexible self-supporting LiFePO4/cellulose nanofiber (LFP@CNF) cathodes to construct fully flexible LMBs with high specific capacity and outstanding stability. {\textcopyright} 2020 Elsevier Ltd.",

keywords = "Flexible devices, Lithium metal anodes, Lithium metal batteries, Ti3C2Tx MXene, Topological structure",

author = "Cao-Yu Wang and Zi-Jian Zheng and Yong-Qiang Feng and Huan Ye and Fei-Fei Cao and Zai-Ping Guo",

year = "2020",

month = aug,

doi = "10.1016/j.nanoen.2020.104817",

language = "English",

volume = "74",

journal = "Nano Energy",

issn = "2211-2855",

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TY - JOUR

T1 - Topological design of ultrastrong MXene paper hosted Li enables ultrathin and fully flexible lithium metal batteries

AU - Wang, Cao-Yu

AU - Zheng, Zi-Jian

AU - Feng, Yong-Qiang

AU - Ye, Huan

AU - Cao, Fei-Fei

AU - Guo, Zai-Ping

PY - 2020/8

Y1 - 2020/8

N2 - Ultrathin Li metal anode with a thickness of <30 μm in combination with state-of-art cathodes could promise high-energy lithium metal batteries (LMBs). Here, we report a facile spin steaming technology to design the topological structures of Ti3C2Tx MXene film as Li host by mixing a trace of cellulose nanofiber (CNF). The interlocked topological microstructure between MXene sheets and microspheres-forming assisted by CNF contributes greatly to enhanced mechanical strength and flexibility of the resultant MXene@CNF film. More importantly, the MXene sheets with abundant Li nucleation sites shows a desirable affinity for Li. As a result, a flexible, ultrathin (~25 μm), and self-supporting MXene@CNF/Li composite anode without rampant Li dendrites, and with favorable cycling stability with high real capacity of Li is realized. The as-obtained hybrid Li anode matches with flexible self-supporting LiFePO4/cellulose nanofiber (LFP@CNF) cathodes to construct fully flexible LMBs with high specific capacity and outstanding stability. © 2020 Elsevier Ltd.

AB - Ultrathin Li metal anode with a thickness of <30 μm in combination with state-of-art cathodes could promise high-energy lithium metal batteries (LMBs). Here, we report a facile spin steaming technology to design the topological structures of Ti3C2Tx MXene film as Li host by mixing a trace of cellulose nanofiber (CNF). The interlocked topological microstructure between MXene sheets and microspheres-forming assisted by CNF contributes greatly to enhanced mechanical strength and flexibility of the resultant MXene@CNF film. More importantly, the MXene sheets with abundant Li nucleation sites shows a desirable affinity for Li. As a result, a flexible, ultrathin (~25 μm), and self-supporting MXene@CNF/Li composite anode without rampant Li dendrites, and with favorable cycling stability with high real capacity of Li is realized. The as-obtained hybrid Li anode matches with flexible self-supporting LiFePO4/cellulose nanofiber (LFP@CNF) cathodes to construct fully flexible LMBs with high specific capacity and outstanding stability. © 2020 Elsevier Ltd.

KW - Flexible devices

KW - Lithium metal anodes

KW - Lithium metal batteries

KW - Ti3C2Tx MXene

KW - Topological structure

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U2 - 10.1016/j.nanoen.2020.104817

DO - 10.1016/j.nanoen.2020.104817

M3 - RGC 21 - Publication in refereed journal

SN - 2211-2855

VL - 74

JO - Nano Energy

JF - Nano Energy

M1 - 104817

ER -

Topological design of ultrastrong MXene paper hosted Li enables ultrathin and fully flexible lithium metal batteries

Abstract

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UN SDGs

Research Keywords

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