Creating fast ion conducting composites via in-situ introduction of titanium as oxygen getter

Wenchao Zhang; Jianfeng Mao; Wei Kong Pang; Xing Wang; Zaiping Guo

doi:10.1016/j.nanoen.2018.04.073

Creating fast ion conducting composites via in-situ introduction of titanium as oxygen getter

Wenchao Zhang, Jianfeng Mao, Wei Kong Pang, Xing Wang, Zaiping Guo^*

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

Metal-ion batteries are promising for large-scale energy storage. Their potential commercialization not only depends on their superior electrochemical performance, but also on the large-scale synthesis cost of electrode materials. In the conventional industrial technology for producing non-oxides, argon protection is required to avoid oxidation, leading to additional costs and extra processing. We demonstrate, without protection gas, that ball milling in air with a small amount of Ti additive can be a cost-effective approach for preparing high-performance alloy anodes. Ti consumes the oxygen, forming TiO₂ (< 10 nm) in situ with high ionic conductivity, while also preventing oxidation and sustaining the electrical conductivity of carbon. This strategy effectively promotes the rate capability (61% capacity retention from 60 to 3000 mA g⁻¹) of SnSb/carbon-nanotube anode (over 204% better than without Ti additive). © 2018 Elsevier Ltd

Original language	English
Pages (from-to)	549-554
Journal	Nano Energy
Volume	49
DOIs	https://doi.org/10.1016/j.nanoen.2018.04.073
Publication status	Published - 1 Jul 2018
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

Financial support provided by the Australian Research Council ( FT150100109 , FT160100251 , and DP170102406 ) is gratefully acknowledged. Wenchao Zhang would like to thank the UOW for providing scholarships.

Research Keywords

High rate capability
Ion conductivity
Oxygen getter
Sodium ion batteries

UN SDGs

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

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abstract = "Metal-ion batteries are promising for large-scale energy storage. Their potential commercialization not only depends on their superior electrochemical performance, but also on the large-scale synthesis cost of electrode materials. In the conventional industrial technology for producing non-oxides, argon protection is required to avoid oxidation, leading to additional costs and extra processing. We demonstrate, without protection gas, that ball milling in air with a small amount of Ti additive can be a cost-effective approach for preparing high-performance alloy anodes. Ti consumes the oxygen, forming TiO2 (< 10 nm) in situ with high ionic conductivity, while also preventing oxidation and sustaining the electrical conductivity of carbon. This strategy effectively promotes the rate capability (61% capacity retention from 60 to 3000 mA g−1) of SnSb/carbon-nanotube anode (over 204% better than without Ti additive). {\textcopyright} 2018 Elsevier Ltd",

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AU - Mao, Jianfeng

AU - Pang, Wei Kong

AU - Wang, Xing

AU - Guo, Zaiping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

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N2 - Metal-ion batteries are promising for large-scale energy storage. Their potential commercialization not only depends on their superior electrochemical performance, but also on the large-scale synthesis cost of electrode materials. In the conventional industrial technology for producing non-oxides, argon protection is required to avoid oxidation, leading to additional costs and extra processing. We demonstrate, without protection gas, that ball milling in air with a small amount of Ti additive can be a cost-effective approach for preparing high-performance alloy anodes. Ti consumes the oxygen, forming TiO2 (< 10 nm) in situ with high ionic conductivity, while also preventing oxidation and sustaining the electrical conductivity of carbon. This strategy effectively promotes the rate capability (61% capacity retention from 60 to 3000 mA g−1) of SnSb/carbon-nanotube anode (over 204% better than without Ti additive). © 2018 Elsevier Ltd

AB - Metal-ion batteries are promising for large-scale energy storage. Their potential commercialization not only depends on their superior electrochemical performance, but also on the large-scale synthesis cost of electrode materials. In the conventional industrial technology for producing non-oxides, argon protection is required to avoid oxidation, leading to additional costs and extra processing. We demonstrate, without protection gas, that ball milling in air with a small amount of Ti additive can be a cost-effective approach for preparing high-performance alloy anodes. Ti consumes the oxygen, forming TiO2 (< 10 nm) in situ with high ionic conductivity, while also preventing oxidation and sustaining the electrical conductivity of carbon. This strategy effectively promotes the rate capability (61% capacity retention from 60 to 3000 mA g−1) of SnSb/carbon-nanotube anode (over 204% better than without Ti additive). © 2018 Elsevier Ltd

KW - High rate capability

KW - Ion conductivity

KW - Oxygen getter

KW - Sodium ion batteries

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DO - 10.1016/j.nanoen.2018.04.073

M3 - RGC 21 - Publication in refereed journal

SN - 2211-2855

VL - 49

SP - 549

EP - 554

JO - Nano Energy

JF - Nano Energy

ER -

Creating fast ion conducting composites via in-situ introduction of titanium as oxygen getter

Abstract

Bibliographical note

Funding

Research Keywords

UN SDGs

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