A flexible solid polymer electrolyte enabled with lithiated zeolite for high performance lithium battery

Zhiyu Ding; Qiming Tang; Qi Zhang; Penghui Yao; Xingjun Liu; Junwei Wu

doi:10.1007/s12274-023-5658-2

Nano Research 2023, 16(7): 9443-9452 https://doi.org/10.1007/s12274-023-5658-2

Research Article | Issue | Published: 11 April 2023

A flexible solid polymer electrolyte enabled with lithiated zeolite for high performance lithium battery

Show Author's Information Hide Author's Information Zhiyu Ding^¹, Qiming Tang^², Qi Zhang^¹, Penghui Yao^³, Xingjun Liu^¹(

), Junwei Wu^¹(

)

1Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

2Maryland Energy Innovation Institute, University of Maryland, College Park, MD 20742, USA

3Department of Chemical and Metallurgical Engineering, Aalto University, Kemistintie 1, Aalto FI-00076, Finland

Keywords:

zeolite, flexible, poly(vinylidene fluorideco-hexafluoropropylene) (PVDF-HFP), solid-state lithium batteries, composite polymer electrolytes

Topics:

Lithium batteries

Cite this article:

Ding Z, Tang Q, Zhang Q, et al. A flexible solid polymer electrolyte enabled with lithiated zeolite for high performance lithium battery. Nano Research, 2023, 16(7): 9443-9452. https://doi.org/10.1007/s12274-023-5658-2

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Abstract Full text Electronic supplementary material About this article

Abstract

Solid-state lithium batteries using composite polymer electrolytes (CPEs) have attracted much attention owing to their higher safety compared to liquid electrolytes and flexibility compared to ceramic electrolytes. However, their unsatisfactory lithium-ion conductivity still limits their development. Herein, a high ion conductive CPE with multiple continuous lithium pathways is designed. This new electrolyte consists of poly(vinylidene fluorideco-hexafluoropropylene) (PVDF-HFP) and lithiated X type zeolite (Li-X), which possesses a high ionic conductivity (1.98 × 10⁻⁴ S/cm), high lithium transference number (t $_{{L i}^{+}}$ = 0.55), wide electrochemical window (4.7 V), and excellent stability against the lithium anode. Density functional theory (DFT) calculation confirms that the Lewis acid sites in zeolite can graft with N,N-dimethylformamide (DMF) and PVDF-HFP chains, resulting in decreased crystallinity of polymer and providing rapid Li⁺ transmission channels. When used in a full cell, the solid Li|Li-X-3%|LiFePO₄ cell displays excellent cycling stability and rate performance at room temperature and 60 °C. Furthermore, pouch cells with the Li-X-3% electrolyte exhibit brilliant safety under extreme conditions, such as folding and cutting. Thus, this proposed zeolite-PVDF-HFP CPE represents a promising potential in the application of making a safer, higher performing, and flexible solid-state lithium battery.

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About this article

A flexible solid polymer electrolyte enabled with lithiated zeolite for high performance lithium battery

Show Author's information Hide Author's Information Zhiyu Ding^¹, Qiming Tang^², Qi Zhang^¹, Penghui Yao^³, Xingjun Liu^¹(

), Junwei Wu^¹(

)

1Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

2Maryland Energy Innovation Institute, University of Maryland, College Park, MD 20742, USA

3Department of Chemical and Metallurgical Engineering, Aalto University, Kemistintie 1, Aalto FI-00076, Finland

Abstract

Keywords: zeolite, flexible, poly(vinylidene fluorideco-hexafluoropropylene) (PVDF-HFP), solid-state lithium batteries, composite polymer electrolytes

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Acknowledgements

Publication history

Received: 03 January 2023

Revised: 01 March 2023

Accepted: 09 March 2023

Published: 11 April 2023

Issue date: July 2023

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Acknowledgements

This work was supported by the Stable Supporting Fund of Shenzhen (No. GXWD20201230155427003-20200728114835006). The authors would like to thank the shiyanjia lab (www.shiyanjia.com) for the DFT calculation support.