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000155189 005__ 20240709082218.0
000155189 037__ $$aFZJ-2014-04370
000155189 041__ $$aEnglish
000155189 1001_ $$0P:(DE-Juel1)156123$$aEichel, Rüdiger-A.$$b0$$eCorresponding Author$$ufzj
000155189 1112_ $$a6th Interantional Symposium on Functional Materials$$cSingapore$$d2014-08-04 - 2014-08-07$$gISFM 2014$$wRepublic of Singapore
000155189 245__ $$aProspects and aspects of advanced Lithium-ion and post-Lithium electrochemical cells for high-performance energy-storage applications
000155189 260__ $$c2014
000155189 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1408516556_5997$$xPlenary/Keynote
000155189 3367_ $$033$$2EndNote$$aConference Paper
000155189 3367_ $$2DataCite$$aOther
000155189 3367_ $$2ORCID$$aLECTURE_SPEECH
000155189 3367_ $$2DRIVER$$aconferenceObject
000155189 3367_ $$2BibTeX$$aINPROCEEDINGS
000155189 502__ $$cRWTH Aachen
000155189 520__ $$aLithium-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.
000155189 536__ $$0G:(DE-HGF)POF2-152$$a152 - Renewable Energies (POF2-152)$$cPOF2-152$$fPOF II$$x0
000155189 773__ $$y2014
000155189 909CO $$ooai:juser.fz-juelich.de:155189$$pVDB
000155189 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)156123$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
000155189 9132_ $$0G:(DE-HGF)POF3-131$$1G:(DE-HGF)POF3-130$$2G:(DE-HGF)POF3-100$$aDE-HGF$$bForschungsbereich Energie$$lSpeicher und vernetzte Infrastrukturen$$vElectrochemical Storage$$x0
000155189 9131_ $$0G:(DE-HGF)POF2-152$$1G:(DE-HGF)POF2-150$$2G:(DE-HGF)POF2-100$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lTechnologie, Innovation und Gesellschaft$$vRenewable Energies$$x0
000155189 9141_ $$y2014
000155189 920__ $$lyes
000155189 9201_ $$0I:(DE-Juel1)IEK-9-20110218$$kIEK-9$$lGrundlagen der Elektrochemie$$x0
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000155189 980__ $$aVDB
000155189 980__ $$aI:(DE-Juel1)IEK-9-20110218
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