000014839 001__ 14839
000014839 005__ 20161115100203.0
000014839 04107 $$aeng
000014839 046__ $$k2016-08-21
000014839 100__ $$aTripuraneni, Rajasekhar
000014839 24500 $$aReal-time measurement of biaxial modulus of GEanode for li-ion batteries

000014839 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014839 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014839 506__ $$arestricted
000014839 520__ $$2eng$$aAn in situ measurement of biaxial modulus evolution of germanium as a lithium ion battery anode material is presented. Thin films of germanium are cycled in a half-cell configuration with lithium metal foil as counter/reference electrode, with 1M LiPF6 in ethylene carbonate, diethyl carbonate, dimethyl carbonate solution (1: 1:1, wt. %) as electrolyte. At various capacity levels the germanium thin films were loaded/unloaded by small lithiation/delithiation steps, the slope of stress-strain curve during this load/unload portion provides the modulus data. It was observed that biaxial modulus changed from 45 GPa for Lio,45Ge to 30 GPa for Li3,75Ge. Understanding variations in biaxial modulus is essential for predicting the stresses accurately and designing fracture resistant germanium electrodes.

000014839 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014839 653__ $$a

000014839 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014839 720__ $$aTripuraneni, Rajasekhar
000014839 8560_ $$ffischerc@itam.cas.cz
000014839 8564_ $$s178030$$uhttps://invenio.itam.cas.cz/record/14839/files/TS.FS03-2.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 3142, code TS.FS03-2.03
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000014839 962__ $$r13812
000014839 980__ $$aPAPER