Atomic level probing of structure and property relationship of energy storage materials
EMSL Project ID
48170
Abstract
The specific aims of this project is to explore the dynamic structural evolution of electrode materials during the operation of the battery. The key issues are the structure-property relationship and its correlation to the charge and ion transport, lattice stability, chemical and structural evolution, stability of the SEI layer, and the capacity fading mechanisms. To resolve these issues, we will focus on Si anode and Li1.2Ni0.2Mn0.6O2 cathode material to probe the microstructural evolution accompanying the insertion and extraction of Li ions in the electrode, elucidate the Li-ion transport mechanism, spatial correlation of Li ion distribution, defect formation, accumulation, phase transformation, and their correlation to the deactivation mechanism of the active materials.
Project Details
Start Date
2013-10-23
End Date
2014-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Dual phase Li4Ti5O12–TiO2 nanowire arrays as integrated anodes for high-rate lithium-ion batteries
Liao J ,Chabot V ,Gu M ,Wang C M,Xiao X ,Chen Z 2014. "Dual Phase Li4 Ti5O12?TiO2 Nanowire Arrays As Integrated Anodes For High-rate Lithium-ion Batteries" Nano Energy 9():383-391. 10.1016/j.nanoen.2014.06.032
In situ transmission electron microscopy and spectroscopy studies of rechargeable batteries under dynamic operating conditions: A retrospective and perspective view
Wang C M 2015. "In Situ Transmission Electron Microscopy And Spectroscopy Studies Of Rechargeable Batteries Under Dynamic Operating Conditions: A Retrospective And Perspective View" Journal of Materials Research 30(3):326-339. 10.1557/jmr.2014.281
Insights into the Phase Formation Mechanism of [0.5Li2MnO3·0.5LiNi0.5Mn0.5O2] Battery Materials
Wang D ,Belharouak I ,Zhang X ,Ren Y ,Gu M ,Wang C M 2013. "Insights into the Phase Formation Mechanism of [0.5Li2MnO3 · 0.5LiNi0.5Mn0.5O2] Battery Materials" Journal of the Electrochemical Society 161(1):A1-A5. 10.1149/2.011401jes
Chemical bonding in amorphous Si-coated carbon nanotubes as anodes for Li ion batteries: a XANES study
Zhou J, Y Hu, X Li, CM Wang, and L Zuin. 2014. "Chemical Bonding In Amorphous Si Coated-carbon Nanotube As Anodes For Li ion Batteries: A XANES Study." RSC Advances 4(39):20226-20229. doi:10.1039/c4ra01332h
Observation of materials processes in liquids by electron microscopy
Wang CM, H Liao, and FM Ross. 2015. "Observation of Materials Processes in Liquids in the Electron Microscope ." MRS Bulletin 40(1):46-52. doi:10.1557/mrs.2014.283.
Bending-Induced Symmetry Breaking of Lithiation in Germanium Nanowires
Gu M, H Yang, DE Perea, J-G Zhang, S Zhang, and C-M Wang. 2014. "Bending-Induced Symmetry Breaking of Lithiation in Germanium Nanowires." Nano Letters. doi:10.1021/nl501680w
Revealing the Atomic Restructuring of Pt–Co Nanoparticles
Xin H, S Alayoglu, R Tao, A Genc, CM Wang, L Kovarik, EA Stach, LW Wang, M Salmeron, GA Somorjai, and H Zheng. 2014. "Revealing the Atomic Restructuring of Pt?Co Nanoparticles." Nano Letters 14(6):3203-3207. doi:10.1021/nl500553a
Mitigating Voltage Fade in Cathode Materials by Improving the Atomic Level Uniformity of Elemental Distribution
Zheng J, M Gu, A Genc, J Xiao, P Xu, X Chen, Z Zhu, W Zhao, L Pullan, CM Wang, and J Zhang. 2014. "Mitigating Voltage Fade In Cathode Materials By Improving The Atomic Level Uniformity Of Elemental Distribution." Nano Letters 14:2628-2635. doi:10.1021/nl500486y
Molecular structure and stability of dissolved lithium polysulfide species
Vijayakumar M, N Govind, ED Walter, SD Burton, AK Shukla, A Devaraj, J Xiao, J Liu, CM Wang, AM Karim, and S Thevuthasan. 2014. "Molecular Structure and Stability of Dissolved Lithium Polysulfide Species." Physical Chemistry Chemical Physics. PCCP 16(22):10923-10932. doi:10.1039/c4cp00889H