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@INPROCEEDINGS{Eichel:155189,
      author       = {Eichel, Rüdiger-A.},
      title        = {{P}rospects and aspects of advanced {L}ithium-ion and
                      post-{L}ithium electrochemical cells for high-performance
                      energy-storage applications},
      school       = {RWTH Aachen},
      reportid     = {FZJ-2014-04370},
      year         = {2014},
      abstract     = {Lithium-ion battery technology currently provides the best
                      compromise between high power- and enhanced energy-density.
                      In order to attain high rate capabilities, simulta-neous
                      high electronic and ionic conductivity has to be achieved
                      for the active material, for which reason nano-scaled
                      materials are typically used. Tailoring the charge-transport
                      properties in terms of aliovalent doping, however, provides
                      an alternative approach with less complicated processing. By
                      systematically introducing defects to the material, lattice
                      vacancies and donor-type inter-band states might be formed
                      that corre-spond in the desired properties. However, at high
                      charge/discharge rates, dendrite growth might impose serious
                      degradation and safety issues at the anode side. By
                      em-ploying dedicated 'in-operando' spectroscopy methods, the
                      growth of dendrites might already be monitored at an early
                      stage, thus providing a technique to effectively
                      investi-gate the impact of various additives for
                      organic-based electrolytes to inhibit the dendrite
                      growth.Cyclic aging is still a limiting factor in current
                      Lithium-ion technology. The correspond-ing mechanisms extend
                      of multiple scales. At the atomic scale, anti-site diffusion
                      and formation of side reactions owing to the limited
                      stability of currently available organic-based electrolytes,
                      define two of the most recent processes. The corresponding
                      mecha-nisms are unraveled at an atomic scale by employing
                      dedicated techniques of magnetic resonance.Whereas with
                      advanced Lithium-ion technologies, only moderate
                      evolutionary advances can be achieved, 'post Lithium-ion'
                      concepts offer the potential of substantial revolutionary
                      pro-gress. In that respect, Li-O2 cells offer the highest
                      theoretical energy density. However, extensive side
                      reactions and decomposition of organic-based electrolytes at
                      the oxygen-reduction catalyst, limit the cyclic efficiency
                      and lifetime. As a promising alternative, 'post-Lithium'
                      metal-air electrochemistry based on supervalent ionic
                      concepts, such as divalent Zn-O2, trivalent Al-O2 and Fe-O2,
                      as well as tetravalent Si-O2 cells come into play. Current
                      technology, however, is mainly hampered by accelerated
                      cyclic aging and limited stability / charge-transfer
                      properties of the available electrolytes.},
      month         = {Aug},
      date          = {2014-08-04},
      organization  = {6th Interantional Symposium on
                       Functional Materials, Singapore
                       (Republic of Singapore), 4 Aug 2014 - 7
                       Aug 2014},
      subtyp        = {Plenary/Keynote},
      cin          = {IEK-9},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {152 - Renewable Energies (POF2-152)},
      pid          = {G:(DE-HGF)POF2-152},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/155189},
}