High-Energy-Density Foldable Battery Enabled by Zigzag-Like Design

Xiangbiao LIAO; Changmin SHI; Tianyang WANG; Boyu QIE; Youlong CHEN; Pengfei YANG; Qian CHENG; Haowei ZHAI; Meijie CHEN; Xue WANG; Xi CHEN; Yuan YANG

doi:10.1002/aenm.201802998

High-Energy-Density Foldable Battery Enabled by Zigzag-Like Design

Xiangbiao LIAO, Changmin SHI, Tianyang WANG, Boyu QIE, Youlong CHEN, Pengfei YANG, Qian CHENG, Haowei ZHAI, Meijie CHEN, Xue WANG, Xi CHEN^*, Yuan YANG

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

61 Citations (Scopus)

Abstract

Flexible batteries, seamlessly compatible with flexible and wearable electronics, attract a great deal of research attention. Current designs of flexible batteries struggle to meet one of the most extreme yet common deformation scenarios in practice, folding, while retaining high energy density. Inspired by origami folding, a novel strategy to fabricate zigzag-like lithium ion batteries with superior foldability is proposed. The battery structure could approach zero-gap between two adjacent energy storage segments, achieving an energy density that is 96.4% of that in a conventional stacking cell. A foldable battery thus fabricated demonstrates an energy density of 275 Wh L⁻¹ and is resilient to fatigue over 45 000 dynamic cycles with a folding angle of 130°, while retaining stable electrochemical performance. Additionally, the power stability and resilience to nail shorting of the foldable battery are also examined.

Original language	English
Article number	1802998
Number of pages	7
Journal	Advanced Energy Materials
Volume	9
Issue number	4
Early online date	7 Dec 2018
DOIs	https://doi.org/10.1002/aenm.201802998
Publication status	Published - 24 Jan 2019
Externally published	Yes

Bibliographical note

Funding Information:
X.B.L., C.M.S., T.Y.W., and B.Q. contributed equally to this work. Y.Y. acknowledges support from startup funding by Columbia University and AFOSR (FA9550-18-1-0410). M.J.C., X.W., and X.B.L. acknowledge support from the China Scholarship Council (CSC) graduate scholarship. The work of X.B.L. and X.C. was supported by the Yonghong Zhang Family Center for Advanced Materials for Energy and Environment.

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

energy density
flexible
foldable
lithium ion batteries
nonflammable

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/aenm.201802998

Cite this

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abstract = "Flexible batteries, seamlessly compatible with flexible and wearable electronics, attract a great deal of research attention. Current designs of flexible batteries struggle to meet one of the most extreme yet common deformation scenarios in practice, folding, while retaining high energy density. Inspired by origami folding, a novel strategy to fabricate zigzag-like lithium ion batteries with superior foldability is proposed. The battery structure could approach zero-gap between two adjacent energy storage segments, achieving an energy density that is 96.4% of that in a conventional stacking cell. A foldable battery thus fabricated demonstrates an energy density of 275 Wh L−1 and is resilient to fatigue over 45 000 dynamic cycles with a folding angle of 130°, while retaining stable electrochemical performance. Additionally, the power stability and resilience to nail shorting of the foldable battery are also examined.",

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AU - CHEN, Youlong

AU - YANG, Pengfei

AU - CHENG, Qian

AU - ZHAI, Haowei

AU - CHEN, Meijie

AU - WANG, Xue

AU - CHEN, Xi

AU - YANG, Yuan

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N2 - Flexible batteries, seamlessly compatible with flexible and wearable electronics, attract a great deal of research attention. Current designs of flexible batteries struggle to meet one of the most extreme yet common deformation scenarios in practice, folding, while retaining high energy density. Inspired by origami folding, a novel strategy to fabricate zigzag-like lithium ion batteries with superior foldability is proposed. The battery structure could approach zero-gap between two adjacent energy storage segments, achieving an energy density that is 96.4% of that in a conventional stacking cell. A foldable battery thus fabricated demonstrates an energy density of 275 Wh L−1 and is resilient to fatigue over 45 000 dynamic cycles with a folding angle of 130°, while retaining stable electrochemical performance. Additionally, the power stability and resilience to nail shorting of the foldable battery are also examined.

AB - Flexible batteries, seamlessly compatible with flexible and wearable electronics, attract a great deal of research attention. Current designs of flexible batteries struggle to meet one of the most extreme yet common deformation scenarios in practice, folding, while retaining high energy density. Inspired by origami folding, a novel strategy to fabricate zigzag-like lithium ion batteries with superior foldability is proposed. The battery structure could approach zero-gap between two adjacent energy storage segments, achieving an energy density that is 96.4% of that in a conventional stacking cell. A foldable battery thus fabricated demonstrates an energy density of 275 Wh L−1 and is resilient to fatigue over 45 000 dynamic cycles with a folding angle of 130°, while retaining stable electrochemical performance. Additionally, the power stability and resilience to nail shorting of the foldable battery are also examined.

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High-Energy-Density Foldable Battery Enabled by Zigzag-Like Design

Abstract

Bibliographical note

Keywords

UN SDGs

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