Graphene boosted Cu2GeS3 for advanced lithium-ion batteries

Lin Fu; Chuanjian Zhang; Bingbing Chen; Zhonghua Zhang; Xiaogang Wang; Jingwen Zhao; Jianjiang He; Huiping Du; Guanglei Cui

doi:10.1039/c6qi00521g

Graphene boosted Cu₂GeS₃ for advanced lithium-ion batteries

Lin Fu, Chuanjian Zhang, Bingbing Chen, Zhonghua Zhang, Xiaogang Wang, Jingwen Zhao, Jianjiang He, Huiping Du, Guanglei Cui

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Germanium-based materials as the anode for lithium ion batteries (LIBs) have been investigated extensively because of their high theoretical capacities. However, ternary germanium-based sulfides as the anode material for LIBs have been rarely investigated until now. In this work, we successfully synthesized a novel ternary Cu₂GeS₃ (CGS) incorporated with reduced graphene oxide (CGS@RGO) and measured their lithium storage performance. As a result, the binder-free CGS@RGO anodes deliver excellent stable cycling properties and high rate capabilities. These improved properties can be ascribed to the introduction of RGO, which acts as a buffer to accommodate the large volume change and maintain the structural integrity of the electrode. More importantly, this work opens an opportunity to develop novel Ge-based anodes for high performance LIBs.

Original language	English
Pages (from-to)	541-546
Number of pages	6
Journal	Inorganic Chemistry Frontiers
Volume	4
Issue number	3
DOIs	https://doi.org/10.1039/c6qi00521g
State	Published - Mar 2017
Externally published	Yes

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title = "Graphene boosted Cu2GeS3 for advanced lithium-ion batteries",

abstract = "Germanium-based materials as the anode for lithium ion batteries (LIBs) have been investigated extensively because of their high theoretical capacities. However, ternary germanium-based sulfides as the anode material for LIBs have been rarely investigated until now. In this work, we successfully synthesized a novel ternary Cu2GeS3 (CGS) incorporated with reduced graphene oxide (CGS@RGO) and measured their lithium storage performance. As a result, the binder-free CGS@RGO anodes deliver excellent stable cycling properties and high rate capabilities. These improved properties can be ascribed to the introduction of RGO, which acts as a buffer to accommodate the large volume change and maintain the structural integrity of the electrode. More importantly, this work opens an opportunity to develop novel Ge-based anodes for high performance LIBs.",

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T1 - Graphene boosted Cu2GeS3 for advanced lithium-ion batteries

AU - Fu, Lin

AU - Zhang, Chuanjian

AU - Chen, Bingbing

AU - Zhang, Zhonghua

AU - Wang, Xiaogang

AU - Zhao, Jingwen

AU - He, Jianjiang

AU - Du, Huiping

AU - Cui, Guanglei

PY - 2017/3

Y1 - 2017/3

N2 - Germanium-based materials as the anode for lithium ion batteries (LIBs) have been investigated extensively because of their high theoretical capacities. However, ternary germanium-based sulfides as the anode material for LIBs have been rarely investigated until now. In this work, we successfully synthesized a novel ternary Cu2GeS3 (CGS) incorporated with reduced graphene oxide (CGS@RGO) and measured their lithium storage performance. As a result, the binder-free CGS@RGO anodes deliver excellent stable cycling properties and high rate capabilities. These improved properties can be ascribed to the introduction of RGO, which acts as a buffer to accommodate the large volume change and maintain the structural integrity of the electrode. More importantly, this work opens an opportunity to develop novel Ge-based anodes for high performance LIBs.

AB - Germanium-based materials as the anode for lithium ion batteries (LIBs) have been investigated extensively because of their high theoretical capacities. However, ternary germanium-based sulfides as the anode material for LIBs have been rarely investigated until now. In this work, we successfully synthesized a novel ternary Cu2GeS3 (CGS) incorporated with reduced graphene oxide (CGS@RGO) and measured their lithium storage performance. As a result, the binder-free CGS@RGO anodes deliver excellent stable cycling properties and high rate capabilities. These improved properties can be ascribed to the introduction of RGO, which acts as a buffer to accommodate the large volume change and maintain the structural integrity of the electrode. More importantly, this work opens an opportunity to develop novel Ge-based anodes for high performance LIBs.

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JO - Inorganic Chemistry Frontiers

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Graphene boosted Cu₂GeS₃ for advanced lithium-ion batteries

Abstract

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