A Multifunctional Load-Bearing Solid-State Supercapacitor

被引：83

作者：

Westover, Andrew S. ^{[1
,2
]}

Tian, John W. ^{[1
]}

Bernath, Shivaprem ^{[1
]}

Oakes, Landon ^{[1
,2
]}

Edwards, Rob ^{[1
]}

Shabab, Farhan N. ^{[1
]}

Chatterjee, Shahana ^{[1
]}

Anilkumar, Amrutur V. ^{[1
]}

Pint, Cary L. ^{[1
,2
]}

机构：

[1] Vanderbilt Univ, Dept Mech Engn, Nashville, TN 37235 USA

[2] Vanderbilt Univ, Interdisciplinary Mat Sci Program, Nashville, TN 37235 USA

来源：

NANO LETTERS | 2014年 / 14卷 / 06期

基金：

美国国家科学基金会;

关键词：

Supercapacitor; load-bearing; porous silicon; poly(ethylene oxide); ionic liquids; solid state; multifunctional energy storage; POROUS SILICON; ENERGY DENSITY; HIGH-POWER; GRAPHENE; ELECTRODES; BATTERIES;

D O I：

10.1021/nl500531r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：3197 / 3202

页数：6

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