Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Mechanoactivation-assisted synthesis and electrochemical characterization of manganese lightly doped LiFePO4

    Access Status
    Fulltext not available
    Authors
    Wang, Y.
    Zhang, D.
    Yu, X.
    Cai, R.
    Shao, Zongping
    Liao, X.
    Ma, Z.
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wang, Y. and Zhang, D. and Yu, X. and Cai, R. and Shao, Z. and Liao, X. and Ma, Z. 2010. Mechanoactivation-assisted synthesis and electrochemical characterization of manganese lightly doped LiFePO4. Journal of Alloys and Compounds. 492 (1-2): pp. 675-680.
    Source Title
    Journal of Alloys and Compounds
    DOI
    10.1016/j.jallcom.2009.12.014
    ISSN
    0925-8388
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/23786
    Collection
    • Curtin Research Publications
    Abstract

    Olivine compounds LiFe1-xMnxPO4 (0.0 = x = 0.3) for cathodes of secondary lithium-ion batteries were synthesized via a mechanoactivation-assisted solid-state reaction. The optimal manganese content and electrochemical performance of the as-synthesized powders were investigated by XRD, EDX mapping, cyclic voltammetry, and charge-discharge characterizations. According to XRD and EDX mapping results, phase-pure compounds with olivine structure were formed after the calcination under nitrogen atmosphere at 700 °C for 20 h. Among the various LiFe1-xMnxPO4 under test, LiFe0.8Mn0.2PO4 showed the highest electrical conductivity, which reached a value of 3.49 × 10-5 S cm-1 at room temperature, more than 5 orders higher than that of pristine LiFePO4 (1.08 × 10-10 S cm-1). Without the carbon coating, pristine LiFe0.8Mn0.2PO4 showed discharge capacity of ~123 and 100 mAh g-1 at 0.1 and 1 C rates, respectively. It means about 91% and 74% of the Fe2+ in LiFe0.8Mn0.2PO4 is electrochemically utilizable correspondingly. For a comparison, they are only 65% and 15% for the pristine LiFePO4 prepared by a similar process. LiFe1-xMnxPO4 also showed stable cycling performance within the 50 cycles under test. It suggests manganese lightly doped LiFePO4 could be practical cathode materials for high-rate lithium-ion batteries. © 2009 Elsevier B.V. All rights reserved.

    Related items

    Showing items related by title, author, creator and subject.

    • 3D amorphous carbon and graphene co-modified LiFePO4 composite derived from polyol process as electrode for high power lithium-ion batteries
      Wu, G.; Ran, R.; Zhao, B.; Sha, Y.; Su, Chao; Zhou, Y.; Shao, Zongping (2014)
      Amorphous carbon and graphene co-modified LiFePO4 nanocomposite has been synthesized via a facile polyol process in connection with a following thermal treatment. Various characterization techniques, including XRD, Mössbauer ...
    • Synthesis Process and Properties of V5+-Doped LiFePO4/C
      Shao, Zongping; Xia, J.; Liu, X.; Li, G. (2016)
      Olivine structure LiFe1−xVxPO4/C (x = 0.02, 0.04, 0.06) composite materials as the cathode for lithium ion batteries were synthesized by carbon-thermal reduction method, using Fe(NO3)3 · 9H2O, LiH2PO4, NH4VO3, and C6H12O6 ...
    • Facile low-temperature polyol process for LiFePO4 nanoplate and carbon nanotube composite
      Wu, G.; Zhou, Y.; Gao, X.; Shao, Zongping (2013)
      Crystalline LiFePO4 nanoplates were incorporated with 5 wt.% multi-walled carbon nanotubes (CNTs) via a facile low temperature polyol process, in one single step without any post heat treatment. The CNTs were embedded ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.