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Manganese dioxide cathode in the presence of TiS2 as additive on an aqueous lithium secondary cell

Journal Article


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Abstract


  • Intercalation of lithium into the vacant sites of a host compound can be achieved electrochemically using nonaqueous electrolytes.

    The use of aqueous electrolyte is less common because of the reactivity of many lithium intercalation compounds with water.

    Here, we propose that lithium could be intercalated into the manganese dioxide cathode in a battery using saturated lithium

    hydroxide as the electrolyte. The positive electrode reaction at MnO2 in this medium is shown to be lithium insertion rather than

    the usual protonation, and acceptable rechargeability is observed. Using X-ray photoelectron spectroscopy and scanning electron

    microscope analysis on the discharged cathode material we confirmed the presence of lithium ions in the host structure of MnO2.

    Further, the incorporation of small amounts 3 wt % = weight percent of titanium disulphide TiS2 additive to the cell MnO2

    cathode leads to a significant improvement in cell performance.

UOW Authors


  •   Minakshi, Manickam (external author)
  •   Singh, Pritam (external author)
  •   Mitchell, David

Publication Date


  • 2007

Citation


  • Minakshi, M., Singh, P. & Mitchell, D. RG. (2007). Manganese dioxide cathode in the presence of TiS2 as additive on an aqueous lithium secondary cell. Journal of the Electrochemical Society, 154 (2), A109-A113.

Scopus Eid


  • 2-s2.0-33846251339

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1901&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/900

Has Global Citation Frequency


Start Page


  • A109

End Page


  • A113

Volume


  • 154

Issue


  • 2

Place Of Publication


  • United States

Abstract


  • Intercalation of lithium into the vacant sites of a host compound can be achieved electrochemically using nonaqueous electrolytes.

    The use of aqueous electrolyte is less common because of the reactivity of many lithium intercalation compounds with water.

    Here, we propose that lithium could be intercalated into the manganese dioxide cathode in a battery using saturated lithium

    hydroxide as the electrolyte. The positive electrode reaction at MnO2 in this medium is shown to be lithium insertion rather than

    the usual protonation, and acceptable rechargeability is observed. Using X-ray photoelectron spectroscopy and scanning electron

    microscope analysis on the discharged cathode material we confirmed the presence of lithium ions in the host structure of MnO2.

    Further, the incorporation of small amounts 3 wt % = weight percent of titanium disulphide TiS2 additive to the cell MnO2

    cathode leads to a significant improvement in cell performance.

UOW Authors


  •   Minakshi, Manickam (external author)
  •   Singh, Pritam (external author)
  •   Mitchell, David

Publication Date


  • 2007

Citation


  • Minakshi, M., Singh, P. & Mitchell, D. RG. (2007). Manganese dioxide cathode in the presence of TiS2 as additive on an aqueous lithium secondary cell. Journal of the Electrochemical Society, 154 (2), A109-A113.

Scopus Eid


  • 2-s2.0-33846251339

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1901&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/900

Has Global Citation Frequency


Start Page


  • A109

End Page


  • A113

Volume


  • 154

Issue


  • 2

Place Of Publication


  • United States