QIBEBT-IR
A study on the interfacial stability of the cathode/polycarbonate interface: implication of overcharge and transition metal redox
Li, Jiedong1,2; Dong, Shanmu2; Wang, Chen2; Hu, Zhenglin2; Zhang, Zhongyi1; Zhang, Hui1; Cui, Guanglei2
2018-07-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:25Pages:11846-11852
AbstractPolycarbonate electrolytes have attracted great interest in recent years due to their high ionic conductivity. However, the cathodic interfacial stability of polycarbonate electrolytes has yet to be explored. Herein, we reported an unusual reverse cation-redox reaction in which Fe3+ was reduced to Fe2+ by poly(propylene carbonate) (PPC) at the interface of a LiFePO4/PPC based solid polymer electrolyte during the first charge process at low current density. The XPS and in situ XRD results indicate the simultaneous existence of LiFePO4 (Fe2+) and FePO4 (Fe3+) in the overcharge process. Besides, the DEMS result indicates that CO2 could originate from the oxidation decomposition of PPC at the cathode surface. During this reaction, the oxidation of the polymer, rather than transition metal ions, serves as the source for charge compensation, leading to a significant overcharge issue. Furthermore, we found that the appearance of LiF on the cathode electrolyte interphase (CEI), tested by XPS, can stabilize the LFP/PPC interface. Consequently, a LiF layer is fabricated on the PPC-SPE surface, which significantly limits the overcharge issues.
DOI10.1039/c8ta02975j
WOS KeywordLITHIUM-ION BATTERIES ; ELECTROCHEMICAL MASS-SPECTROMETRY ; SOLID POLYMER ELECTROLYTES ; IN-SITU ; SUPERIONIC CONDUCTOR ; LI-BATTERIES ; STATE ; CHALLENGES ; LIFEPO4 ; SPECTROSCOPY
Language英语
Funding ProjectNational Science Fund for Distinguished Young Scholars[51625204] ; National Science Fund[51625204] ; Key Research and Development Plan of Shandong Province P. R. China[2017GGX40119] ; National Natural Science Foundation of China[51703236] ; Youth Innovation Promotion Association of CAS[2016193] ; China Postdoctoral Science Foundation[2017M612366]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
Funding OrganizationNational Science Fund for Distinguished Young Scholars ; National Science Fund ; Key Research and Development Plan of Shandong Province P. R. China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS ; China Postdoctoral Science Foundation
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000436516700027
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/12335
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorDong, Shanmu; Zhang, Hui; Cui, Guanglei
Affiliation1.Qingdao Univ, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Li, Jiedong,Dong, Shanmu,Wang, Chen,et al. A study on the interfacial stability of the cathode/polycarbonate interface: implication of overcharge and transition metal redox[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(25):11846-11852.
APA Li, Jiedong.,Dong, Shanmu.,Wang, Chen.,Hu, Zhenglin.,Zhang, Zhongyi.,...&Cui, Guanglei.(2018).A study on the interfacial stability of the cathode/polycarbonate interface: implication of overcharge and transition metal redox.JOURNAL OF MATERIALS CHEMISTRY A,6(25),11846-11852.
MLA Li, Jiedong,et al."A study on the interfacial stability of the cathode/polycarbonate interface: implication of overcharge and transition metal redox".JOURNAL OF MATERIALS CHEMISTRY A 6.25(2018):11846-11852.
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
[Li, Jiedong]'s Articles
[Dong, Shanmu]'s Articles
[Wang, Chen]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Jiedong]'s Articles
[Dong, Shanmu]'s Articles
[Wang, Chen]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Jiedong]'s Articles
[Dong, Shanmu]'s Articles
[Wang, Chen]'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.