Structural and electrochemical studies of alpha manganese dioxide ({alpha}-MnO{sub 2})

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The structural and electrochemical properties of alpha-MnO[sub 2], prepared by acid digestion of Mn[sub 2]O[sub 3], and its lithiated derivatives xLi[sub 2] O . MnO[sub 2] (where x is greater than or equal to zero and less than or equal to 0.25) have been investigated as insertion compounds in the search for new and viable cathode materials for rechargeable 3-V batteries. The alpha-MnO[sub 2] product fabricated by this technique contains water within the large (2x2) channels of the structure; the water can be removed from the alpha-MnO[sub 2] framework without degradation of the structure, and then at least partially replaced ... continued below

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28 p.

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Johnson, C.S.; Dees, D.W.; Mansuetto, M.F.; Thackeray, M.M.; Vissers, D.R.; Argyriou, D. et al. August 1, 1996.

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The structural and electrochemical properties of alpha-MnO[sub 2], prepared by acid digestion of Mn[sub 2]O[sub 3], and its lithiated derivatives xLi[sub 2] O . MnO[sub 2] (where x is greater than or equal to zero and less than or equal to 0.25) have been investigated as insertion compounds in the search for new and viable cathode materials for rechargeable 3-V batteries. The alpha-MnO[sub 2] product fabricated by this technique contains water within the large (2x2) channels of the structure; the water can be removed from the alpha-MnO[sub 2] framework without degradation of the structure, and then at least partially replaced by Li[sub 2]O. The lithia-doped alpha-MnO[sub 2] electrodes, described generically as xLi[sub 2]O . Mno[sub 2], stabilize the structure and provide higher capacities on cycling than the parent material. The structures of these alpha- MnO[sub 2]-type electrode materials are described. and electrochemical data are presented for both liquid electrolyte and polymer electrolyte Li/alpha-MnO[sub 2] and Li/xLi[sub 2]O . MnO[sub 2] cells.

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28 p.

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OSTI as DE96012719

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  • 8. international meeting on lithium batteries, Nagoya (Japan), 16-21 Jun 1996

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  • Other: DE96012719
  • Report No.: ANL/CMT/VU--89522
  • Report No.: CONF-9606212--3
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 373809
  • Archival Resource Key: ark:/67531/metadc688239

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  • August 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Dec. 14, 2015, 6:55 p.m.

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Johnson, C.S.; Dees, D.W.; Mansuetto, M.F.; Thackeray, M.M.; Vissers, D.R.; Argyriou, D. et al. Structural and electrochemical studies of alpha manganese dioxide ({alpha}-MnO{sub 2}), article, August 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc688239/: accessed June 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.