View in EDS

Spinel-structured surface layers for facile Li ion transport and improved chemical stability of lithium manganese oxide spinel.

Saved in:
Bibliographic Details
Title: Spinel-structured surface layers for facile Li ion transport and improved chemical stability of lithium manganese oxide spinel.
Authors: Lee, Hae Ri1,2, Seo, Hyo Ree1, Lee, Boeun1, Cho, Byung Won1, Lee, Kwan-Young2, Oh, Si Hyoung1 sho74@kist.re.kr
Source: Applied Surface Science. Jan2017, Vol. 392, p448-455. 8p.
Subjects: Spinel group, Surface chemistry, Lithium ions, Chemical stability, Lithium manganese oxide
Abstract: Li-ion conducting spinel-structured oxide layer with a manganese oxidation state close to being tetravalent was prepared on aluminum-doped lithium manganese oxide spinel for improving the electrochemical performances at the elevated temperatures. This nanoscale surface layer provides a good ionic conduction path for lithium ion transport to the core and also serves as an excellent chemical barrier for protecting the high-capacity core material from manganese dissolution into the electrolyte. In this work, a simple wet process was employed to prepare thin LiAlMnO 4 and LiMg 0.5 Mn 1.5 O 4 layers on the surface of LiAl 0.1 Mn 1.9 O 4 . X-ray absorption studies revealed an oxidation state close to tetravalent manganese on the surface layer of coated materials. Materials with these surface coating layers exhibited excellent capacity retentions superior to the bare material, without undermining the lithium ion transport characteristics and the high rate performances. [ABSTRACT FROM AUTHOR]
Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 119440794
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Spinel-structured surface layers for facile Li ion transport and improved chemical stability of lithium manganese oxide spinel.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Hae+Ri%22">Lee, Hae Ri</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Seo%2C+Hyo+Ree%22">Seo, Hyo Ree</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Boeun%22">Lee, Boeun</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cho%2C+Byung+Won%22">Cho, Byung Won</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Kwan-Young%22">Lee, Kwan-Young</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Oh%2C+Si+Hyoung%22">Oh, Si Hyoung</searchLink><relatesTo>1</relatesTo><i> sho74@kist.re.kr</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Jan2017, Vol. 392, p448-455. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Spinel+group%22">Spinel group</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium+ions%22">Lithium ions</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+stability%22">Chemical stability</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium+manganese+oxide%22">Lithium manganese oxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Li-ion conducting spinel-structured oxide layer with a manganese oxidation state close to being tetravalent was prepared on aluminum-doped lithium manganese oxide spinel for improving the electrochemical performances at the elevated temperatures. This nanoscale surface layer provides a good ionic conduction path for lithium ion transport to the core and also serves as an excellent chemical barrier for protecting the high-capacity core material from manganese dissolution into the electrolyte. In this work, a simple wet process was employed to prepare thin LiAlMnO 4 and LiMg 0.5 Mn 1.5 O 4 layers on the surface of LiAl 0.1 Mn 1.9 O 4 . X-ray absorption studies revealed an oxidation state close to tetravalent manganese on the surface layer of coated materials. Materials with these surface coating layers exhibited excellent capacity retentions superior to the bare material, without undermining the lithium ion transport characteristics and the high rate performances. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=119440794
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.apsusc.2016.09.059
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 448
    Subjects:
      – SubjectFull: Spinel group
        Type: general
      – SubjectFull: Surface chemistry
        Type: general
      – SubjectFull: Lithium ions
        Type: general
      – SubjectFull: Chemical stability
        Type: general
      – SubjectFull: Lithium manganese oxide
        Type: general
    Titles:
      – TitleFull: Spinel-structured surface layers for facile Li ion transport and improved chemical stability of lithium manganese oxide spinel.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Lee, Hae Ri
      – PersonEntity:
          Name:
            NameFull: Seo, Hyo Ree
      – PersonEntity:
          Name:
            NameFull: Lee, Boeun
      – PersonEntity:
          Name:
            NameFull: Cho, Byung Won
      – PersonEntity:
          Name:
            NameFull: Lee, Kwan-Young
      – PersonEntity:
          Name:
            NameFull: Oh, Si Hyoung
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 01
              Text: Jan2017
              Type: published
              Y: 2017
          Identifiers:
            – Type: issn-print
              Value: 01694332
          Numbering:
            – Type: volume
              Value: 392
          Titles:
            – TitleFull: Applied Surface Science
              Type: main
ResultId 1