A multifunctional load-bearing solid-state supercapacitor

Andrew S. Westover, John W. Tian, Shivaprem Bernath, Landon Oakes, Rob Edwards, Farhan N. Shabab, Shahana Chatterjee, Amrutur V. Anilkumar, Cary L. Pint

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

A load-bearing, multifunctional material with the simultaneous capability to store energy and withstand static and dynamic mechanical stresses is demonstrated. This is produced using ion-conducting polymers infiltrated into nanoporous silicon that is etched directly into bulk conductive silicon. This device platform maintains energy densities near 10 W h/kg with Coulombic efficiency of 98% under exposure to over 300 kPa tensile stresses and 80 g vibratory accelerations, along with excellent performance in other shear, compression, and impact tests. This demonstrates performance feasibility as a structurally integrated energy storage material broadly applicable across renewable energy systems, transportation systems, and mobile electronics, among others.

Original languageEnglish
Pages (from-to)3197-3202
Number of pages6
JournalNano Letters
Volume14
Issue number6
DOIs
StatePublished - Jun 11 2014
Externally publishedYes

Funding

FundersFunder number
National Science Foundation1334269

    Keywords

    • Supercapacitor
    • ionic liquids
    • load-bearing
    • multifunctional energy storage
    • poly(ethylene oxide)
    • porous silicon
    • solid state

    Fingerprint

    Dive into the research topics of 'A multifunctional load-bearing solid-state supercapacitor'. Together they form a unique fingerprint.

    Cite this