New Perspectives in Energy Storage Materials

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$Powder Diffraction - Spallation Neutron Source$

$Single Crystal Diffraction - Spallation Neutron Source$

Intensity Intensity 8000 7000 6000 5000 4000 3000 2000 1000 13000 12000 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 Fully Discharged 1b: 700 - 639 A 1c: 471 - 439 A 1 d: 353 - 335 A Particle 1 1e: PS @ 3.85V (599 - 462 A) 1f: PS @ 3.95V (487 - 404 A) 1g: PS @ 3.95V (228 - 222 A) 1 h: PS @ 3.95V (142 - 137 A) 1I: PS @ 4.05 V (107 - 102 A) 1J PS @ 4.15 V (134 - 111 A) 1 k PS @ 4.2 V( 55 - 54 A) Dynamical Potentiostatic Condition Data recorded dur<strong>in</strong>g PS @ 3.75 V 1300 1400 1500 1600 1700 Raman Shift (cm -1 ) 1589.45 1589 1586.8 (13.7) 1582 (17) 1589.5 ( 30 averages) J. Nanda et al. (unpublished) Hardwick et al. Solid State Ionics 177 (2006)
Intensity Intensity µm 600 500 400 300 200 100 Si Si High Capacity Si-C Composite Anode D D 1 I Raman Shift (cm-1 Raman Shift (cm ) -1 ) G G 0 400 600 800 1000 1200 1400 1600 µm D D II 2 Raman Raman Raman Intensity Intensity Intensity (arbitary (arbitary (arbitary units) units) units) 20000 16000 12000 1st 1 discharge cycle st 1 discharge cycle st discharge cycle 0.85 V 0.45 V 0.35 V 0.2 V 0.08 V 0.05 V 1st 1 charge cycle st 1 charge cycle st charge cycle µm In-situ observation of lithiation of silicon-rich region <strong>in</strong> Si-C composite Ratio of Si area to G-Band area (a) Nanda et al. Electrochem. Comm. (2009) 10 µm (b) 10 µm 475 500 525 550 575 Wave Number (cm -1 475 500 525 550 575 Wave Number (cm ) -1 475 500 525 550 575 Wave Number (cm ) -1 ) 1V 0.6V 0.4 V 500 550 19
Page 1 and 2: New Perspectives in Energy Storage
Page 3 and 4: Working of a Li-ion full cell
Page 5 and 6: 5 Managed by UT-Battelle for the U.
Page 7 and 8: Counts 1200 1100 1000 900 800 700 6
Page 9 and 10: 9 Managed by UT-Battelle for the U.
Page 11 and 12: Counts Counts Mapping Lithium Defic
Page 13 and 14: Counts Counts 1300 1200 1100 1000 9
Page 15 and 16: Counts Counts Counts Counts Counts
Page 17: Intensity 4000 3000 3.41 V 2000 3.6

New Perspectives in Energy Storage Materials

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