CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Carbon Nanotube-CoF2 Multifunctional Cathode for Lithium Ion Batteries: Effect of Electrolyte on Cycle Stability
Wang, Xinran1,2,3; Gu, Wentian3; Lee, Jung Tae3; Nitta, Naoki3; Benson, Jim3; Magasinski, Alexandre3; Schauer, Mark W.4; Yushin, Gleb3
2015-10-14
Source PublicationSMALL
ISSN1613-6810
Volume11Issue:38Pages:5164-5173
AbstractTransition metal fluorides (MFx) offer remarkably high theoretical energy density. However, the low cycling stability, low electrical and ionic conductivity of metal fluorides have severely limited their applications as conversion-type cathode materials for lithium ion batteries. Here, a scalable and low-cost strategy is reported on the fabrication of multifunctional cobalt fluoride/carbon nanotube nonwoven fabric nanocomposite, which demonstrates a combination of high capacity (near-theoretical, 550mAhg(CoF2)(-1)) and excellent mechanical properties. Its strength and modulus of toughness exceed that of many aluminum alloys, cast iron, and other structural materials, fulfilling the use of MFx-based materials in batteries with load-bearing capabilities. In the course of this study, cathode dissolution in conventional electrolytes has been discovered as the main reason that leads to the rapid growth of the solid electrolyte interphase layer and attributes to rapid cell degradation. And such largely overlooked degradation mechanism is overcome by utilizing electrolyte comprising a fluorinated solvent, which forms a protective ionically conductive layer on the cathode and anode surfaces. With this approach, 93% capacity retention is achieved after 200 cycles at the current density of 100 mA g(-1) and over 50% after 10 000 cycles at the current density of 1000 mA g(-1)
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1002/smll.201501139
Indexed BySCI
Language英语
WOS KeywordLOW-TEMPERATURE PERFORMANCE ; ENERGY-STORAGE DEVICES ; FLUOROETHYLENE CARBONATE ; SULFUR BATTERIES ; HIGH-CAPACITY ; NEGATIVE-ELECTRODES ; COMPOSITE CATHODES ; SURFACE-CHEMISTRY ; ANODE ; CELLS
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000362819700021
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19638
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
4.Nanocomp Technol Inc, Merrimack, NH 03054 USA
Recommended Citation
GB/T 7714
Wang, Xinran,Gu, Wentian,Lee, Jung Tae,et al. Carbon Nanotube-CoF2 Multifunctional Cathode for Lithium Ion Batteries: Effect of Electrolyte on Cycle Stability[J]. SMALL,2015,11(38):5164-5173.
APA Wang, Xinran.,Gu, Wentian.,Lee, Jung Tae.,Nitta, Naoki.,Benson, Jim.,...&Yushin, Gleb.(2015).Carbon Nanotube-CoF2 Multifunctional Cathode for Lithium Ion Batteries: Effect of Electrolyte on Cycle Stability.SMALL,11(38),5164-5173.
MLA Wang, Xinran,et al."Carbon Nanotube-CoF2 Multifunctional Cathode for Lithium Ion Batteries: Effect of Electrolyte on Cycle Stability".SMALL 11.38(2015):5164-5173.
Files in This Item:
File Name/Size DocType Version Access License
Carbon Nanotube-CoF2(1731KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xinran]'s Articles
[Gu, Wentian]'s Articles
[Lee, Jung Tae]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xinran]'s Articles
[Gu, Wentian]'s Articles
[Lee, Jung Tae]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xinran]'s Articles
[Gu, Wentian]'s Articles
[Lee, Jung Tae]'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.