Stretchable batteries with gradient multilayer conductors

Science Advances
Minsu GuByeong-Su Kim

Abstract

Stretchable conductors are essential components in next-generation deformable and wearable electronic devices. The ability of stretchable conductors to achieve sufficient electrical conductivity, however, remains limited under high strain, which is particularly detrimental for charge storage devices. In this study, we present stretchable conductors made from multiple layers of gradient assembled polyurethane (GAP) comprising gold nanoparticles capable of self-assembly under strain. Stratified layering affords control over the composite internal architecture at multiple scales, leading to metallic conductivity in both the lateral and transversal directions under strains of as high as 300%. The unique combination of the electrical and mechanical properties of GAP electrodes enables the development of a stretchable lithium-ion battery with a charge-discharge rate capability of 100 mAh g-1 at a current density of 0.5 A g-1 and remarkable cycle retention of 96% after 1000 cycles. The hierarchical GAP nanocomposites afford rapid fabrication of advanced charge storage devices.

References

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Citations

Jun 3, 2020·Chemical Society Reviews·David G MackanicZhenan Bao
Jan 28, 2021·Advanced Materials·Veenasri VallemMichael D Dickey
Jan 29, 2021·Advanced Healthcare Materials·Hyung Joon ShimDae-Hyeong Kim
Feb 19, 2021·Nanoscale·Seungseok HanJung-Yong Lee
Sep 29, 2020·Advanced Drug Delivery Reviews·Dinorath Olvera, Michael G Monaghan
Apr 16, 2021·Advanced Science·Yire HanSoon-Gil Yoon
Apr 27, 2021·Advanced Science·Dong Wook KimUnyong Jeong
Dec 19, 2019·ACS Applied Materials & Interfaces·Yinhua BaoDaining Fang
Nov 12, 2020·Accounts of Chemical Research·Minsu Gu, Byeong-Su Kim
Aug 28, 2021·Science·Dongjun JungDae-Hyeong Kim
Sep 14, 2021·ACS Applied Materials & Interfaces·Shuhua PengChun-Hui Wang
Oct 30, 2021·Advanced Materials·Tingting YeYe Zhang

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Methods Mentioned

BETA
scanning electron microscopy
x-ray spectroscopy
x-ray scattering

Software Mentioned

ABAQUS
Standard

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