Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries

Lithium–sulfur batteries have drawn considerable attention because of their extremely high energy density. Activated carbon (AC) is an ideal matrix for sulfur because of its high specific surface area, large pore volume, small-size nanopores, and simple preparation. In this work, through KOH activat...
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Autor*in:	Mingbo Zheng [verfasserIn] Qin Hu [verfasserIn] Songtao Zhang [verfasserIn] Hao Tang [verfasserIn] Lulu Li [verfasserIn] Huan Pang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	biomass activated carbon sulfur hosts lithium–sulfur battery

Übergeordnetes Werk:	In: Applied Sciences - MDPI AG, 2012, 7(2017), 10, p 1036
Übergeordnetes Werk:	volume:7 ; year:2017 ; number:10, p 1036

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/app7101036

Katalog-ID:	DOAJ040595919

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language	English
source	In Applied Sciences 7(2017), 10, p 1036 volume:7 year:2017 number:10, p 1036
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topic_facet	biomass activated carbon sulfur hosts lithium–sulfur battery Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry
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container_title	Applied Sciences
authorswithroles_txt_mv	Mingbo Zheng @@aut@@ Qin Hu @@aut@@ Songtao Zhang @@aut@@ Hao Tang @@aut@@ Lulu Li @@aut@@ Huan Pang @@aut@@
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callnumber-first	T - Technology
author	Mingbo Zheng
spellingShingle	Mingbo Zheng misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc biomass misc activated carbon misc sulfur hosts misc lithium–sulfur battery misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries
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topic_title	TA1-2040 QH301-705.5 QC1-999 QD1-999 Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries biomass activated carbon sulfur hosts lithium–sulfur battery
topic	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc biomass misc activated carbon misc sulfur hosts misc lithium–sulfur battery misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
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title	Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries
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title_sort	macroporous activated carbon derived from rapeseed shell for lithium–sulfur batteries
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title_auth	Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries
abstract	Lithium–sulfur batteries have drawn considerable attention because of their extremely high energy density. Activated carbon (AC) is an ideal matrix for sulfur because of its high specific surface area, large pore volume, small-size nanopores, and simple preparation. In this work, through KOH activation, AC materials with different porous structure parameters were prepared using waste rapeseed shells as precursors. Effects of KOH amount, activated temperature, and activated time on pore structure parameters of ACs were studied. AC sample with optimal pore structure parameters was investigated as sulfur host materials. Applied in lithium–sulfur batteries, the AC/S composite (60 wt % sulfur) exhibited a high specific capacity of 1065 mAh g−1 at 200 mA g−1 and a good capacity retention of 49% after 1000 cycles at 1600 mA g−1. The key factor for good cycling stability involves the restraining effect of small-sized nanopores of the AC framework on the diffusion of polysulfides to bulk electrolyte and the loss of the active material sulfur. Results demonstrated that AC materials derived from rapeseed shells are promising materials for sulfur loading.
abstractGer	Lithium–sulfur batteries have drawn considerable attention because of their extremely high energy density. Activated carbon (AC) is an ideal matrix for sulfur because of its high specific surface area, large pore volume, small-size nanopores, and simple preparation. In this work, through KOH activation, AC materials with different porous structure parameters were prepared using waste rapeseed shells as precursors. Effects of KOH amount, activated temperature, and activated time on pore structure parameters of ACs were studied. AC sample with optimal pore structure parameters was investigated as sulfur host materials. Applied in lithium–sulfur batteries, the AC/S composite (60 wt % sulfur) exhibited a high specific capacity of 1065 mAh g−1 at 200 mA g−1 and a good capacity retention of 49% after 1000 cycles at 1600 mA g−1. The key factor for good cycling stability involves the restraining effect of small-sized nanopores of the AC framework on the diffusion of polysulfides to bulk electrolyte and the loss of the active material sulfur. Results demonstrated that AC materials derived from rapeseed shells are promising materials for sulfur loading.
abstract_unstemmed	Lithium–sulfur batteries have drawn considerable attention because of their extremely high energy density. Activated carbon (AC) is an ideal matrix for sulfur because of its high specific surface area, large pore volume, small-size nanopores, and simple preparation. In this work, through KOH activation, AC materials with different porous structure parameters were prepared using waste rapeseed shells as precursors. Effects of KOH amount, activated temperature, and activated time on pore structure parameters of ACs were studied. AC sample with optimal pore structure parameters was investigated as sulfur host materials. Applied in lithium–sulfur batteries, the AC/S composite (60 wt % sulfur) exhibited a high specific capacity of 1065 mAh g−1 at 200 mA g−1 and a good capacity retention of 49% after 1000 cycles at 1600 mA g−1. The key factor for good cycling stability involves the restraining effect of small-sized nanopores of the AC framework on the diffusion of polysulfides to bulk electrolyte and the loss of the active material sulfur. Results demonstrated that AC materials derived from rapeseed shells are promising materials for sulfur loading.
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title_short	Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries
url	https://doi.org/10.3390/app7101036 https://doaj.org/article/36d717b10d8843898c8848d74a580de3 https://www.mdpi.com/2076-3417/7/10/1036 https://doaj.org/toc/2076-3417
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Macroporous Activated Carbon Derived from Rapeseed Shell for Lithium–Sulfur Batteries

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