Modification of Porous N-Doped Carbon with Sulfonic Acid toward High-ICE/Capacity Anode Material for Potassium-Ion Batteries

doi:10.1002/adfm.202204991

	Modification of Porous N-Doped Carbon with Sulfonic Acid toward High-ICE/Capacity Anode Material for Potassium-Ion Batteries
	Tu, Jinwei 1,3; Tong, Huigang 1,3; Zeng, Xuehao 1,3; Chen, Shi 1,3; Wang, Changlai 1,3; Zheng, Wei 1,3; Wang, Hui 2; Chen, Qianwang 1,3
刊名	ADVANCED FUNCTIONAL MATERIALS
	2022-06-16
关键词	hydrothermal porous carbons initial coulombic efficiency (ICE) capacity double-high potassium-ion batteries sulfonic acid modified cavities
ISSN号	1616-301X
DOI	10.1002/adfm.202204991
通讯作者	Chen, Qianwang(cqw@ustc.edu.cn)
英文摘要	Among anode materials for potassium-ion batteries (PIBs), carbon-based materials attract extensive attention due to their abundant material resources, low cost, high surface capacity, and excellent electrical conductivity. However, carbon-based materials always display a low initial coulombic efficiency (ICE), which greatly hinders the full utilization of the battery capacity and energy density. Moreover, the slow dynamic process and the large volume expansion during intercalation result in poor cyclic stability. In this work, a sulfonic acid modified porous N-doped carbon (SA-NC) is prepared as an anode for PIBs. This SA-NC material provides abundant migration channels and active potassium storage sites with K+ adsorption energy as low as -1.752 eV, which promote rapidly reversible surface adsorption/desorption capacitance storage of K+, and improve the potassium storage performance and the ICE of the electrode simultaneously. The material exhibits outstanding performance with high reversible initial charging specific capacity (793 mAh g(-1) at 0.05 A g(-1) current density, 90% capacity retention after 80 cycles), high initial coulomb efficiency (68.21% at 0.1 A g(-1)), and long-time hyper-stable cycling stability (288 mAh g(-1) after 2000 cycles at 2 A g(-1)), which show outstanding performance in all aspects and is at the leading level in carbon anode materials.
资助项目	National Natural Science Foundation (NSFC)[22072140] ; National Natural Science Foundation (NSFC)[51772283] ; National Key R&D Program of China[2021YFA1600202]
WOS关键词	HARD CARBON ; PERFORMANCE ; NITROGEN ; NANOTUBES ; CATALYST
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000812047500001
资助机构	National Natural Science Foundation (NSFC) ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131243]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Qianwang
作者单位	1.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Tu, Jinwei,Tong, Huigang,Zeng, Xuehao,et al. Modification of Porous N-Doped Carbon with Sulfonic Acid toward High-ICE/Capacity Anode Material for Potassium-Ion Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2022.
APA	Tu, Jinwei.,Tong, Huigang.,Zeng, Xuehao.,Chen, Shi.,Wang, Changlai.,...&Chen, Qianwang.(2022).Modification of Porous N-Doped Carbon with Sulfonic Acid toward High-ICE/Capacity Anode Material for Potassium-Ion Batteries.ADVANCED FUNCTIONAL MATERIALS.
MLA	Tu, Jinwei,et al."Modification of Porous N-Doped Carbon with Sulfonic Acid toward High-ICE/Capacity Anode Material for Potassium-Ion Batteries".ADVANCED FUNCTIONAL MATERIALS (2022).