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Surface Structural Disordering in Graphite upon Lithium Intercalation/Deintercalation
Vijay A. Sethuraman, Laurence J. Hardwick, Venkat Srinivasan +1
We report on the origin of the surface structural disordering in graphite anodes induced by lithium intercalation and deintercalation processes. Average Raman spectra of graphitic…
In Situ Measurements of Stress Evolution in Silicon Thin Films During Electrochemical Lithiation and Delithiation
Vijay A. Sethuraman, Michael J. Chon, Maxwell Shimshak +2
We report in situ measurements of stress evolution in a silicon thin-film electrode during electrochemical lithiation and delithiation by using the Multi-beam Optical Sensor (MOS)…
Lithium Diffusion in Graphitic Carbon
Kristin Persson, Vijay A. Sethuraman, Laurence J. Hardwick +6
Graphitic carbon is currently considered the state-of-the-art material for the negative electrode in lithium-ion cells, mainly due to its high reversibility and low operating poten…
In Situ Measurements of Stress-Potential Coupling in Lithiated Silicon
Vijay A. Sethuraman, Venkat Srinivasan, Allan F. Bower +1
An analysis of the dependence of electric potential on the state of stress of a lithiated-silicon electrode is presented. Based on the Larché and Cahn chemical potential for a soli…
Increased Cycling Efficiency and Rate Capability of Copper-coated Silicon Anodes in Lithium-ion Batteries
Vijay A. Sethuraman, Kristin Kowolik, Venkat Srinivasan
Cycling efficiency and rate capability of porous copper-coated, amorphous silicon thin-film negative electrodes are compared to equivalent silicon thin-film electrodes in lithium-i…