High-performance anode materials based on 3D orderly and vertically macroporous graphene-Si framework for Li-ion batteries

Fengjuan Miao; Wanjuan Cong; Rui Miao; Na Wang; Wenyi Wu; Yu Zang; Cuiping Shi; Lei Zhu; Bairui Tao; Paul K. Chu

doi:10.1007/s11581-018-2653-9

High-performance anode materials based on 3D orderly and vertically macroporous graphene-Si framework for Li-ion batteries

Fengjuan Miao^*, Wanjuan Cong, Rui Miao, Na Wang, Wenyi Wu, Yu Zang, Cuiping Shi, Lei Zhu, Bairui Tao^*, Paul K. Chu

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

Porous graphene/Si-MCP (microchannel plate) microstructures are fabricated using electrochemical exfoliation and microelectronic machining. The few-layer graphene nanosheets with a lateral size of 600–850 nm and thickness of 2–3 nm are uniformed anchored on the surface and channels of the Si-MCP substrate. The as-prepared graphene/Si-MCP is used as the anode in lithium ion batteries and demonstrated to have a higher reversible capacity, better cycling retention, and excellent higher rate cycling performance compared to graphene/Si and Si-MCP. The good properties are attributed to the large surface-to-volume ratio of the structure and the better electrical contact with graphene. This silicon-based composite has large potential as anodes in integrated batteries.

Original language	English
Pages (from-to)	467-473
Journal	Ionics
Volume	25
Issue number	2
Online published	21 Jul 2018
DOIs	https://doi.org/10.1007/s11581-018-2653-9
Publication status	Published - Feb 2019

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Anode
Electrochemical exfoliation
Graphene/Si-MCP
Li-ion batteries

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@article{22e69acbd6824ab49c339d0357a415a5,

title = "High-performance anode materials based on 3D orderly and vertically macroporous graphene-Si framework for Li-ion batteries",

abstract = "Porous graphene/Si-MCP (microchannel plate) microstructures are fabricated using electrochemical exfoliation and microelectronic machining. The few-layer graphene nanosheets with a lateral size of 600–850 nm and thickness of 2–3 nm are uniformed anchored on the surface and channels of the Si-MCP substrate. The as-prepared graphene/Si-MCP is used as the anode in lithium ion batteries and demonstrated to have a higher reversible capacity, better cycling retention, and excellent higher rate cycling performance compared to graphene/Si and Si-MCP. The good properties are attributed to the large surface-to-volume ratio of the structure and the better electrical contact with graphene. This silicon-based composite has large potential as anodes in integrated batteries.",

keywords = "Anode, Electrochemical exfoliation, Graphene/Si-MCP, Li-ion batteries",

author = "Fengjuan Miao and Wanjuan Cong and Rui Miao and Na Wang and Wenyi Wu and Yu Zang and Cuiping Shi and Lei Zhu and Bairui Tao and Chu, {Paul K.}",

year = "2019",

month = feb,

doi = "10.1007/s11581-018-2653-9",

language = "English",

volume = "25",

pages = "467--473",

journal = "Ionics",

issn = "0947-7047",

publisher = "Springer Science and Business Media Deutschland GmbH",

number = "2",

}

TY - JOUR

T1 - High-performance anode materials based on 3D orderly and vertically macroporous graphene-Si framework for Li-ion batteries

AU - Miao, Fengjuan

AU - Cong, Wanjuan

AU - Miao, Rui

AU - Wang, Na

AU - Wu, Wenyi

AU - Zang, Yu

AU - Shi, Cuiping

AU - Zhu, Lei

AU - Tao, Bairui

AU - Chu, Paul K.

PY - 2019/2

Y1 - 2019/2

N2 - Porous graphene/Si-MCP (microchannel plate) microstructures are fabricated using electrochemical exfoliation and microelectronic machining. The few-layer graphene nanosheets with a lateral size of 600–850 nm and thickness of 2–3 nm are uniformed anchored on the surface and channels of the Si-MCP substrate. The as-prepared graphene/Si-MCP is used as the anode in lithium ion batteries and demonstrated to have a higher reversible capacity, better cycling retention, and excellent higher rate cycling performance compared to graphene/Si and Si-MCP. The good properties are attributed to the large surface-to-volume ratio of the structure and the better electrical contact with graphene. This silicon-based composite has large potential as anodes in integrated batteries.

AB - Porous graphene/Si-MCP (microchannel plate) microstructures are fabricated using electrochemical exfoliation and microelectronic machining. The few-layer graphene nanosheets with a lateral size of 600–850 nm and thickness of 2–3 nm are uniformed anchored on the surface and channels of the Si-MCP substrate. The as-prepared graphene/Si-MCP is used as the anode in lithium ion batteries and demonstrated to have a higher reversible capacity, better cycling retention, and excellent higher rate cycling performance compared to graphene/Si and Si-MCP. The good properties are attributed to the large surface-to-volume ratio of the structure and the better electrical contact with graphene. This silicon-based composite has large potential as anodes in integrated batteries.

KW - Anode

KW - Electrochemical exfoliation

KW - Graphene/Si-MCP

KW - Li-ion batteries

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85050210214&origin=recordpage

UR - http://www.scopus.com/inward/record.url?scp=85050210214&partnerID=8YFLogxK

U2 - 10.1007/s11581-018-2653-9

DO - 10.1007/s11581-018-2653-9

M3 - RGC 21 - Publication in refereed journal

SN - 0947-7047

VL - 25

SP - 467

EP - 473

JO - Ionics

JF - Ionics

IS - 2

ER -

High-performance anode materials based on 3D orderly and vertically macroporous graphene-Si framework for Li-ion batteries

Abstract

UN SDGs

Research Keywords

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