Electrode degradation study of vertically aligned carbon nanotubes on a 3D integrated current collector

Marshall A. Schroeder, Alexander J. Pearse, Alexander C. Kozen, Sang Bok Lee, Gary W. Rubloff, Malachi Noked

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Assembling nanostructured materials into rationally designed mesoscale arrays for use as electrodes in electrochemical systems is anticipated to reveal new challenges, particularly concerning new synthesis modes, architecture-related performance limitations, and degradation mechanisms. In this work, we focus on characterizing the degradation of densely packed vertically aligned carbon nanotubes (VACNTs) grown directly on a metallic foam to form a self-supporting, hierarchically porous 3D electrode architecture with an integrated current collector. The degradation pathways of this electrode, observed with microscopy and semi in-situ XPS after cycling as a redox scaffold in aprotic Li-O2 and Li-S batteries, shed new light on important design, performance, and degradation considerations for integrated mesoscale electrode architectures.

Original languageEnglish
Pages (from-to)A2372-A2377
JournalJournal of the Electrochemical Society
Volume162
Issue number12
DOIs
StatePublished - 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 The Electrochemical Society.

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