SIC OpenIR
N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries
Zhou, XJ; Tian, J; Wu, QP; Hu, JL; Li, CL
2020
Source PublicationENERGY STORAGE MATERIALS
ISSN2405-8297
Pages644
SubtypeArticle
AbstractLithium-sulfur (Li-S) battery is one of the most prospective energy storage systems beyond lithium ion battery technologies owing to its super-high theoretical energy density and low cost. However, the dissolution of polysulfide intermediates and low level of sulfur loading still retard the practical application of Li-S batteries. Here, a self-sacrifice templating strategy is reported to synthesize N/O dual-doped hollow carbon microspheres (HCMs) by carbonization of polydopamine coating carbon nitride hollow spheres. The HCM host is constructed by holey nanosheets in shell with a large surface area (873 m(2)/g) and pore volume (4.84 cm(3)/g), high N/O doping contents (5.36 and 6.99 atom%). Benefiting from the confinement effect, wetting capability, lithiophilic adsorption and catalytic conversion, HCMs-S cathode enables a reversible capacity around 900 mAh/g at 1-2 C and a retention capacity of 530 mAh/g after 900 cycles. HCMs-S also enables an endurance of high mass and areal S loadings (90% and 4.84 mg/cm(2)) with a reversible capacity around 700 mAh/g. Long-term and high-rate cycling does not degrade the homogeneous deposition of nanostructured Li2S at cathode side and dendrite-free Li plating at anode side. This work demonstrates a facile approach to micro-sized C-S grains with desirable three-dimensional architecture composed of two-dimensional building blocks and interconnected mass/charge transport channels for high loading Li-S batteries.
DOI10.1016/j.ensm.2019.06.009
WOS KeywordCONVERSION ANODE ; SULFUR CATHODE ; NITROGEN ; POLYSULFIDES ; IMMOBILIZER ; KINETICS ; SPHERES ; SIZE
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
PublisherELSEVIER
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28411
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhou, XJ,Tian, J,Wu, QP,et al. N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries[J]. ENERGY STORAGE MATERIALS,2020:644.
APA Zhou, XJ,Tian, J,Wu, QP,Hu, JL,&Li, CL.(2020).N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries.ENERGY STORAGE MATERIALS,644.
MLA Zhou, XJ,et al."N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries".ENERGY STORAGE MATERIALS (2020):644.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou, XJ]'s Articles
[Tian, J]'s Articles
[Wu, QP]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, XJ]'s Articles
[Tian, J]'s Articles
[Wu, QP]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, XJ]'s Articles
[Tian, J]'s Articles
[Wu, QP]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.