Kirigami-based stretchable lithium-ion batteries.

Zeming Song,Hongyu Yu,Xu Wang,Yonghao An,Hanqing Jiang,Shi-Qing Huang,Mengbing Liang,Cheng Lv,David He,Ying-Jie Zheng,Teng Ma

doi:10.1038/srep10988

Zeming Song, Hongyu Yu + Show 9 more

Open Access

https://doi.org/10.1038/srep10988

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Journal: Scientific Reports	Publication Date: Jun 11, 2015
Citations: 254	License type: CC BY 4.0

Affiliation: Arizona State University, Jinan University

Abstract

We have produced stretchable lithium-ion batteries (LIBs) using the concept of kirigami, i.e., a combination of folding and cutting. The designated kirigami patterns have been discovered and implemented to achieve great stretchability (over 150%) to LIBs that are produced by standardized battery manufacturing. It is shown that fracture due to cutting and folding is suppressed by plastic rolling, which provides kirigami LIBs excellent electrochemical and mechanical characteristics. The kirigami LIBs have demonstrated the capability to be integrated and power a smart watch, which may disruptively impact the field of wearable electronics by offering extra physical and functionality design spaces.

Highlights

We have produced stretchable lithium-ion batteries (LIBs) using the concept of kirigami, i.e., a combination of folding and cutting
Over 150% stretchability has been achieved and the produced kirigami LIBs have demonstrated the ability to power a Samsung Gear 2 smart watch, which shows the potential applications of this approach
We demonstrated that the stretchable kirigami LIB is able to power a Samsung Gear 2 smart watch

Summary

Introduction

We have produced stretchable lithium-ion batteries (LIBs) using the concept of kirigami, i.e., a combination of folding and cutting. The LIBs were produced by the standard slurry coating (using graphite as an anode and LiCoO2 as a cathode) and packaging procedure, followed by a designated folding and cutting procedure to achieve a particular kirigami pattern.

Results

Conclusion