CAS OpenIR
A lithium salt additive Li2ZrF6 for enhancing the electrochemical performance of high-voltage LiNi0.5Mn1.5O4 cathode
Fan, Juntian1,2; Dong, Tao1; Fang, Daliang1,2; Li, Xuefeng1; Mo, Xian'en1; Wen, Kaihua1,2; Chen, Shimou1; Zhang, Suojiang1
2018-10-01
Source PublicationIONICS
ISSN0947-7047
Volume24Issue:10Pages:2965-2972
Abstract

In this work, Li2ZrF6, a lithium salt additive, is reported to improve the interface stability of LiNi0.5Mn1.5O4 (LNMO)/electrolyte interface under high voltage (4.9 V vs Li/Li+). Li2ZrF6 is an effective additive to serve as an in situ surface coating material for high-voltage LNMO half cells. A protective SEI layer is formed on the electrode surface due to the involvement of Li2ZrF6 during the formation of SEI layer. Charge/discharge tests show that 0.15 mol L-1 Li2ZrF6 is the optimal concentration for the LiNi0.5Mn1.5O4 electrode and it can improve the cycling performance and rate property of LNMO/Li half cells. The results obtained by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) demonstrate that Li2ZrF6 can facilitate the formation of a thin, uniform, and stable solid electrolyte interface (SEI) layer. This layer inhibits the oxidation decomposition of the electrolyte and suppresses the dissolution of the cathode materials, resulting in improved electrochemical performances.

KeywordLithium Ion Batteries Electrolyte Additives Lithium Fluorozirconate
DOI10.1007/s11581-018-2512-8
Language英语
WOS KeywordLi-ion Batteries ; Elevated-temperature ; Liquid Electrolytes ; Perspective ; Challenges ; Stability ; Mechanism ; Surface ; Cells
Funding ProjectNational Natural Science Foundation of China[91534109]
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000445155700006
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26027
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Shimou; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Fan, Juntian,Dong, Tao,Fang, Daliang,et al. A lithium salt additive Li2ZrF6 for enhancing the electrochemical performance of high-voltage LiNi0.5Mn1.5O4 cathode[J]. IONICS,2018,24(10):2965-2972.
APA Fan, Juntian.,Dong, Tao.,Fang, Daliang.,Li, Xuefeng.,Mo, Xian'en.,...&Zhang, Suojiang.(2018).A lithium salt additive Li2ZrF6 for enhancing the electrochemical performance of high-voltage LiNi0.5Mn1.5O4 cathode.IONICS,24(10),2965-2972.
MLA Fan, Juntian,et al."A lithium salt additive Li2ZrF6 for enhancing the electrochemical performance of high-voltage LiNi0.5Mn1.5O4 cathode".IONICS 24.10(2018):2965-2972.
Files in This Item:
File Name/Size DocType Version Access License
A lithium salt addit(1708KB)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
[Fan, Juntian]'s Articles
[Dong, Tao]'s Articles
[Fang, Daliang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fan, Juntian]'s Articles
[Dong, Tao]'s Articles
[Fang, Daliang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fan, Juntian]'s Articles
[Dong, Tao]'s Articles
[Fang, Daliang]'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.