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Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries.
Nanomaterials (Basel). 2018 Mar 26; 8(4)N

Abstract

Lithium-sulfur (Li-S) batteries have been identified as the greatest potential next- generation energy-storage systems because of the large theoretical energy density of 2600 Wh kg-1. However, its practical application on a massive scale is impeded by severe capacity loss resulted from the notorious polysulfides shuttle. Here, we first present a novel technique to synthesize sandwich-type nitrogen and sulfur codoped graphene-backboned porous carbon (NSGPC) to modify the commercial polypropylene separator in Li-S batteries. The as-synthesized NSGPC exhibits a unique micro/mesoporous carbon framework, large specific surface area (2439.0 m² g-1), high pore volume (1.78 cm³ g-1), good conductivity, and in situ nitrogen (1.86 at %) and sulfur (5.26 at %) co-doping. Benefiting from the particular physical properties and chemical components of NSGPC, the resultant NSGPC-coated separator not only can facilitate rapid Li⁺ ions and electrons transfer, but also can restrict the dissolution of polysulfides to alleviate the shuttle effect by combining the physical absorption and strong chemical adsorption. As a result, Li-S batteries with NSGPC-coated separator exhibit high initial reversible capacity (1208.6 mAh g-1 at 0.2 C), excellent rate capability (596.6 mAh g-1 at 5 C), and superior cycling stability (over 500 cycles at 2 C with 0.074% capacity decay each cycle). Propelling our easy-designed pure sulfur cathode to a extremely increased mass loading of 3.4 mg cm-2 (70 wt. % sulfur), the Li-S batteries with this functional composite separator exhibit a superior high initial capacity of 1171.7 mAh g-1, which is quite beneficial to commercialized applications.

Authors+Show Affiliations

School of Resource and Environment, Henan University of Engineering, No. 1, Xianghe Road, Zhengzhou 451191, China. chenfeng871588@163.com.School of Resource and Environment, Henan University of Engineering, No. 1, Xianghe Road, Zhengzhou 451191, China. malulu1001@163.com.School of Resource and Environment, Henan University of Engineering, No. 1, Xianghe Road, Zhengzhou 451191, China. renjiangang2005@126.com.School of Metallurgy and Environment, Central South University, Lushan South Street 932, Yuelu District, Changsha 410083, China. 17307484092@163.com.School of Resource and Environment, Henan University of Engineering, No. 1, Xianghe Road, Zhengzhou 451191, China. liubb2008@126.com.School of Metallurgy and Environment, Central South University, Lushan South Street 932, Yuelu District, Changsha 410083, China. hncsyjy308@163.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29587467

Citation

Chen, Feng, et al. "Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries." Nanomaterials (Basel, Switzerland), vol. 8, no. 4, 2018.
Chen F, Ma L, Ren J, et al. Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries. Nanomaterials (Basel). 2018;8(4).
Chen, F., Ma, L., Ren, J., Luo, X., Liu, B., & Zhou, X. (2018). Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries. Nanomaterials (Basel, Switzerland), 8(4). https://doi.org/10.3390/nano8040191
Chen F, et al. Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries. Nanomaterials (Basel). 2018 Mar 26;8(4) PubMed PMID: 29587467.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries. AU - Chen,Feng, AU - Ma,Lulu, AU - Ren,Jiangang, AU - Luo,Xinyu, AU - Liu,Bibo, AU - Zhou,Xiangyang, Y1 - 2018/03/26/ PY - 2018/02/04/received PY - 2018/03/23/revised PY - 2018/03/24/accepted PY - 2018/3/29/entrez PY - 2018/3/29/pubmed PY - 2018/3/29/medline KW - graphene-backboned porous carbon KW - heteroatom doping KW - lithium-sulfur batteries KW - multifunctional separators KW - shuttle effect JF - Nanomaterials (Basel, Switzerland) JO - Nanomaterials (Basel) VL - 8 IS - 4 N2 - Lithium-sulfur (Li-S) batteries have been identified as the greatest potential next- generation energy-storage systems because of the large theoretical energy density of 2600 Wh kg-1. However, its practical application on a massive scale is impeded by severe capacity loss resulted from the notorious polysulfides shuttle. Here, we first present a novel technique to synthesize sandwich-type nitrogen and sulfur codoped graphene-backboned porous carbon (NSGPC) to modify the commercial polypropylene separator in Li-S batteries. The as-synthesized NSGPC exhibits a unique micro/mesoporous carbon framework, large specific surface area (2439.0 m² g-1), high pore volume (1.78 cm³ g-1), good conductivity, and in situ nitrogen (1.86 at %) and sulfur (5.26 at %) co-doping. Benefiting from the particular physical properties and chemical components of NSGPC, the resultant NSGPC-coated separator not only can facilitate rapid Li⁺ ions and electrons transfer, but also can restrict the dissolution of polysulfides to alleviate the shuttle effect by combining the physical absorption and strong chemical adsorption. As a result, Li-S batteries with NSGPC-coated separator exhibit high initial reversible capacity (1208.6 mAh g-1 at 0.2 C), excellent rate capability (596.6 mAh g-1 at 5 C), and superior cycling stability (over 500 cycles at 2 C with 0.074% capacity decay each cycle). Propelling our easy-designed pure sulfur cathode to a extremely increased mass loading of 3.4 mg cm-2 (70 wt. % sulfur), the Li-S batteries with this functional composite separator exhibit a superior high initial capacity of 1171.7 mAh g-1, which is quite beneficial to commercialized applications. SN - 2079-4991 UR - https://www.unboundmedicine.com/medline/citation/29587467/Sandwich_Type_Nitrogen_and_Sulfur_Codoped_Graphene_Backboned_Porous_Carbon_Coated_Separator_for_High_Performance_Lithium_Sulfur_Batteries_ L2 - http://www.mdpi.com/resolver?pii=nano8040191 DB - PRIME DP - Unbound Medicine ER -
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