Optimized Silicon Electrode Architecture, Interface, and Microgeometry for Next-Generation Lithium-Ion Batteries

Daniela Molina Piper; Tyler Evans; Shanshan Xu; Seul Cham Kim; Sang Sub Han; Ken Liang Liu; Kyu Hwan Oh; Ronggui Yang; Se-Hee Lee

doi:10.1002/adma.201503633

Optimized Silicon Electrode Architecture, Interface, and Microgeometry for Next-Generation Lithium-Ion Batteries

Adv Mater. 2016 Jan 6;28(1):188-93. doi: 10.1002/adma.201503633. Epub 2015 Oct 27.

Authors

Daniela Molina Piper¹, Tyler Evans¹, Shanshan Xu¹, Seul Cham Kim², Sang Sub Han², Ken Liang Liu¹, Kyu Hwan Oh², Ronggui Yang¹, Se-Hee Lee¹

Affiliations

¹ Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, 80309, USA.
² Department of Material Science and Engineering, Seoul National University, Seoul, 151-742, South Korea.

PMID: 26506084
DOI: 10.1002/adma.201503633

Abstract

Optimized performance of silicon-ionic- liquid lithium-ion batteries through the implementation of a new electrode-microgeometry. The incorporation of 1D silicon nanowires into the cyclized-polyacrylonitrile-based electrode-architecture allows for greatly improved active material utilization, higher rate capabilities, and reduced interfacial reactions.

Keywords: anodes; ionic liquids; polyacrylonitrile; silicon nanowires; solid-electrolyte interphase.