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@ARTICLE{Jakes:256252,
      author       = {Jakes, Peter and Granwehr, Josef and Kungl, Hans and
                      Eichel, Rüdiger-A.},
      title        = {{M}ixed {I}onic–{E}lectronic {C}onducting {L}i4{T}i5{O}12
                      as {A}node {M}aterial for {L}ithium {I}on {B}atteries with
                      {E}nhanced {R}ate {C}apability – {I}mpact of {O}xygen
                      {N}on-{S}toichiometry and {A}liovalent {M}g2+-{D}oping
                      {S}tudied by {E}lectron {P}aramagnetic {R}esonance},
      journal      = {Zeitschrift für physikalische Chemie},
      volume       = {229},
      number       = {9},
      issn         = {2196-7156},
      address      = {Berlin},
      publisher    = {De @Gruyter},
      reportid     = {FZJ-2015-06219},
      pages        = {1439-1450},
      year         = {2015},
      abstract     = {Spinel-type Li4Ti5O12 is an attractive anode material for
                      lithium-ion battery applications owing to its high specific
                      energy and almost vanishing mechanical strain upon
                      Li-(de)intercalation. The impact of oxygen non-stoichiometry
                      and aliovalent Mg-doping on the defect chemistry of
                      Li4Ti5O12 has been characterized by quantitative electron
                      paramagnetic resonance (EPR) spectroscopy. The results
                      obtained demonstrate that the Mg2+-ions are amphoterically
                      incorporated at the here studied concentrations on both
                      lithium (MgLi•) and titanium (Mg′′Ti) sites.
                      Mg2+-doping thus simultaneously results in the formation of
                      donor (MgLi•) and acceptor (Mg′′Ti) centers.
                      Furthermore, upon both oxygen deficiency and Mg2+-doping,
                      the concentration of `polaronic'-type Ti3+-states is
                      increased, accounting for the enhanced electronic
                      conductivity.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000363494500014},
      doi          = {10.1515/zpch-2015-0618},
      url          = {https://juser.fz-juelich.de/record/256252},
}