The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries
Due to the “shuttle effect”, the cycle performance of lithium sulfur (Li-S) battery is poor and the capacity decays rapidly. Replacing lithium-ion battery is the maximum problem to be overcome. In order to solve this problem, we use a cage like microporous MOF(CPM-5) as a carbon...
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MDPI AG
2020-01-01
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author | Guodong Han Xin Wang Jia Yao Mi Zhang Juan Wang |
author_facet | Guodong Han Xin Wang Jia Yao Mi Zhang Juan Wang |
author_sort | Guodong Han |
collection | DOAJ |
description | Due to the “shuttle effect”, the cycle performance of lithium sulfur (Li-S) battery is poor and the capacity decays rapidly. Replacing lithium-ion battery is the maximum problem to be overcome. In order to solve this problem, we use a cage like microporous MOF(CPM-5) as a carbon source, which is carbonized at high temperature to get a micro-mesoporous carbon composite material. In addition, indium oxide particles formed during carbonization are deposited on CPM-5 structure, forming a simple core-shell structure CPM-5-C-600. When it is used as the cathode of Li-S battery, the small molecule sulfide can be confined in the micropores, while the existence of large pore size mesopores can provide a channel for the transmission of lithium ions, so as to improve the conductivity of the material and the rate performance of the battery. After 100 cycles, the specific capacity of the battery can be still maintained at 650 mA h·g<sup>−1</sup> and the Coulombic efficiency is close to 100%. When the rate goes up to 2 C, the first discharge capacity not only can reach 1400 mA h·g<sup>−1</sup>, but also still provides 500 mA h·g<sup>−1</sup> after 200 cycles, showing excellent rate performance. |
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language | English |
last_indexed | 2024-12-21T03:46:01Z |
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spelling | doaj.art-3a989d7f450344379baefe4e58cbf17a2022-12-21T19:17:05ZengMDPI AGNanomaterials2079-49912020-01-0110117710.3390/nano10010177nano10010177The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur BatteriesGuodong Han0Xin Wang1Jia Yao2Mi Zhang3Juan Wang4Shanxi Key Laboratory of Nanomaterials & Nanotechnology, School of Mechanical & Electrical Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaShanxi Key Laboratory of Nanomaterials & Nanotechnology, School of Mechanical & Electrical Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaShanxi Key Laboratory of Nanomaterials & Nanotechnology, School of Mechanical & Electrical Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaShanxi Key Laboratory of Nanomaterials & Nanotechnology, School of Mechanical & Electrical Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaShanxi Key Laboratory of Nanomaterials & Nanotechnology, School of Mechanical & Electrical Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaDue to the “shuttle effect”, the cycle performance of lithium sulfur (Li-S) battery is poor and the capacity decays rapidly. Replacing lithium-ion battery is the maximum problem to be overcome. In order to solve this problem, we use a cage like microporous MOF(CPM-5) as a carbon source, which is carbonized at high temperature to get a micro-mesoporous carbon composite material. In addition, indium oxide particles formed during carbonization are deposited on CPM-5 structure, forming a simple core-shell structure CPM-5-C-600. When it is used as the cathode of Li-S battery, the small molecule sulfide can be confined in the micropores, while the existence of large pore size mesopores can provide a channel for the transmission of lithium ions, so as to improve the conductivity of the material and the rate performance of the battery. After 100 cycles, the specific capacity of the battery can be still maintained at 650 mA h·g<sup>−1</sup> and the Coulombic efficiency is close to 100%. When the rate goes up to 2 C, the first discharge capacity not only can reach 1400 mA h·g<sup>−1</sup>, but also still provides 500 mA h·g<sup>−1</sup> after 200 cycles, showing excellent rate performance.https://www.mdpi.com/2079-4991/10/1/177shuttle effectcpm-5indium oxidecore-shellcoulombic efficiency |
spellingShingle | Guodong Han Xin Wang Jia Yao Mi Zhang Juan Wang The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries Nanomaterials shuttle effect cpm-5 indium oxide core-shell coulombic efficiency |
title | The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries |
title_full | The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries |
title_fullStr | The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries |
title_full_unstemmed | The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries |
title_short | The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries |
title_sort | application of indium oxide cpm 5 c 600 composite material derived from mof in cathode material of lithium sulfur batteries |
topic | shuttle effect cpm-5 indium oxide core-shell coulombic efficiency |
url | https://www.mdpi.com/2079-4991/10/1/177 |
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