Laser induced molybdenum sulphide loading on doped graphene cathode for highly stable lithium sulphur battery

Yihe Huang; Qian Chen; Yudong Peng; Hu Zhao; Zhu Liu; Lin Li

doi:10.1038/s42004-019-0240-2

Laser induced molybdenum sulphide loading on doped graphene cathode for highly stable lithium sulphur battery

Yihe Huang, Qian Chen, Yudong Peng, Hu Zhao, Zhu Liu, Lin Li

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Abstract

Lithium sulphur (Li-S) batteries are known to have much higher charge capacity than the currently widely used lithium-ion batteries with graphite anodes. However, maintaining high charge cycle stability is a key challenge for Li-S batteries due to the shuttle effect. Here we show highly stable characteristics with 100% charge capacity of Li-S batteries with 500 charge/discharge cycles at 0.5C, 1C, 2C and 3C charge rates. This was made possible by the combination of laser synthesised sulfur (S) and nitrogen (N) doped graphene electrodes (without a binder) with molybdenum sulphide (MoS2) nanoparticle loading. The N/S doped porous graphene structure presented enhanced interface adsorption by the production of –SO2, which suppressed diffusion of polysulfide into the electrolyte through promoting oxygen-containing functional groups chemically bonding with sulfur. A low electrolyte resistance, interphase contact resistance and charge-transfer resistance accelerate electrons and Li+ transport by laser induced N/S doped graphene.

Original language	English
Article number	138
Journal	Communications Chemistry
Volume	2
Issue number	0
DOIs	https://doi.org/10.1038/s42004-019-0240-2
Publication status	Published - 6 Dec 2019

Keywords

battery, graphene, stability, laser, Li-ion, Li-S

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

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s42004-019-0240-2Final published version, 1.7 MBLicence: CC BY

LPRC: Laser Processing Research Centre Impact
Allegre, O. (PI), Crosby, D. (PI), Domingos, M. (PI), Francis, J. (PI), Gillen, D. (PI), Guo, W. (PI), Li, L. (PI), Mativenga, P. (PI), Rogers, B. D. (PI), Whitehead, D. (PI), Wilson, D. (PI), Zhong, S. (PI), Mirhosseini, N. (Researcher), Ouyang, J. (Researcher), Huang, Y. (Researcher), Wei, C. (Researcher), Cheng, D. (PGR student), Suryo Pratomo, E. (PGR student), Zhang, Z. (PGR student), Li, Z. (PGR student), Mo, H. (PGR student), Zhu, M. (PGR student), Li, Q. (PGR student), Liu, W. (PGR student), Wang, L. (PGR student), Guo, H. (PGR student), Heinemann, R. (PI) & Liu, Z. (PI)
1/04/00 → …
Project: Research

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title = "Laser induced molybdenum sulphide loading on doped graphene cathode for highly stable lithium sulphur battery",

abstract = "Lithium sulphur (Li-S) batteries are known to have much higher charge capacity than the currently widely used lithium-ion batteries with graphite anodes. However, maintaining high charge cycle stability is a key challenge for Li-S batteries due to the shuttle effect. Here we show highly stable characteristics with 100% charge capacity of Li-S batteries with 500 charge/discharge cycles at 0.5C, 1C, 2C and 3C charge rates. This was made possible by the combination of laser synthesised sulfur (S) and nitrogen (N) doped graphene electrodes (without a binder) with molybdenum sulphide (MoS2) nanoparticle loading. The N/S doped porous graphene structure presented enhanced interface adsorption by the production of –SO2, which suppressed diffusion of polysulfide into the electrolyte through promoting oxygen-containing functional groups chemically bonding with sulfur. A low electrolyte resistance, interphase contact resistance and charge-transfer resistance accelerate electrons and Li+ transport by laser induced N/S doped graphene.",

keywords = "battery, graphene, stability, laser, Li-ion, Li-S",

author = "Yihe Huang and Qian Chen and Yudong Peng and Hu Zhao and Zhu Liu and Lin Li",

note = "Existing Li-ion based batteries suffer from reducing charge capacity with number of charge and discharge cycles, thus more frequent charges are needed as the batteries are used. This paper demonstrates a new approach in producing cathodes of Li-ion batteries that enables 100% charge capacity over 500 cycles at both the standard charge current (1C) and fast charging (3C). This breakthrough is based on the laser engineered nano-materials to enable the presentation of loss of S in Li-S battery.",

year = "2019",

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doi = "10.1038/s42004-019-0240-2",

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AU - Huang, Yihe

AU - Chen, Qian

AU - Peng, Yudong

AU - Zhao, Hu

AU - Liu, Zhu

AU - Li, Lin

N1 - Existing Li-ion based batteries suffer from reducing charge capacity with number of charge and discharge cycles, thus more frequent charges are needed as the batteries are used. This paper demonstrates a new approach in producing cathodes of Li-ion batteries that enables 100% charge capacity over 500 cycles at both the standard charge current (1C) and fast charging (3C). This breakthrough is based on the laser engineered nano-materials to enable the presentation of loss of S in Li-S battery.

PY - 2019/12/6

Y1 - 2019/12/6

N2 - Lithium sulphur (Li-S) batteries are known to have much higher charge capacity than the currently widely used lithium-ion batteries with graphite anodes. However, maintaining high charge cycle stability is a key challenge for Li-S batteries due to the shuttle effect. Here we show highly stable characteristics with 100% charge capacity of Li-S batteries with 500 charge/discharge cycles at 0.5C, 1C, 2C and 3C charge rates. This was made possible by the combination of laser synthesised sulfur (S) and nitrogen (N) doped graphene electrodes (without a binder) with molybdenum sulphide (MoS2) nanoparticle loading. The N/S doped porous graphene structure presented enhanced interface adsorption by the production of –SO2, which suppressed diffusion of polysulfide into the electrolyte through promoting oxygen-containing functional groups chemically bonding with sulfur. A low electrolyte resistance, interphase contact resistance and charge-transfer resistance accelerate electrons and Li+ transport by laser induced N/S doped graphene.

AB - Lithium sulphur (Li-S) batteries are known to have much higher charge capacity than the currently widely used lithium-ion batteries with graphite anodes. However, maintaining high charge cycle stability is a key challenge for Li-S batteries due to the shuttle effect. Here we show highly stable characteristics with 100% charge capacity of Li-S batteries with 500 charge/discharge cycles at 0.5C, 1C, 2C and 3C charge rates. This was made possible by the combination of laser synthesised sulfur (S) and nitrogen (N) doped graphene electrodes (without a binder) with molybdenum sulphide (MoS2) nanoparticle loading. The N/S doped porous graphene structure presented enhanced interface adsorption by the production of –SO2, which suppressed diffusion of polysulfide into the electrolyte through promoting oxygen-containing functional groups chemically bonding with sulfur. A low electrolyte resistance, interphase contact resistance and charge-transfer resistance accelerate electrons and Li+ transport by laser induced N/S doped graphene.

KW - battery, graphene, stability, laser, Li-ion, Li-S

U2 - 10.1038/s42004-019-0240-2

DO - 10.1038/s42004-019-0240-2

M3 - Article

SN - 2399-3669

VL - 2

JO - Communications Chemistry

JF - Communications Chemistry

IS - 0

M1 - 138

ER -

Laser induced molybdenum sulphide loading on doped graphene cathode for highly stable lithium sulphur battery

Abstract

Keywords

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LPRC: Laser Processing Research Centre Impact

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