Interfacially Induced Cascading Failure in Graphite-Silicon Composite Anodes.

ABSTRACT: Silicon (Si) has been well recognized as a promising candidate to replace graphite because of its earth abundance and high-capacity storage, but its large volume changes upon lithiation/delithiation and the consequential material fracturing, loss of electrical contact, and over-consumption of the electrolyte prevent its full application. As a countermeasure for rapid capacity decay, a composite electrode of graphite and Si has been adopted by accommodating Si nanoparticles in a graphite matrix. Such an approach, which involves two materials that interact electrochemically with lithium in the electrode, necessitates an analytical methodology to determine the individual electrochemical behavior of each active material. In this work, a methodology comprising differential plots and integral ca

SUBMITTER: Son SB 

PROVIDER: S-EPMC6364491 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature