A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life

The poor stability of the zinc-metal anode is a main bottleneck for practical application of aqueous zinc-ion batteries. Herein, a series of molecular sieves with various channel sizes are investigated as an electrolyte host to regulate the ionic environment of Zn2+ on the surface of the zinc anode...

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Main Authors: Zhu, Junbo, Bie, Zhe, Cai, Xinxin, Jiao, Zhaoyang, Wang, Ziting, Tao, Jingchen, Song, Weixing, Fan, Hong Jin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/163066
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1630662023-02-28T20:04:36Z A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life Zhu, Junbo Bie, Zhe Cai, Xinxin Jiao, Zhaoyang Wang, Ziting Tao, Jingchen Song, Weixing Fan, Hong Jin School of Physical and Mathematical Sciences Science::Physics Aqueous Zn Batteries Dendrites The poor stability of the zinc-metal anode is a main bottleneck for practical application of aqueous zinc-ion batteries. Herein, a series of molecular sieves with various channel sizes are investigated as an electrolyte host to regulate the ionic environment of Zn2+ on the surface of the zinc anode and to realize separator-free batteries. Based on the ZSM-5 molecular sieve, a solid-liquid mixed electrolyte membrane is constructed to uniformize the transport of zinc ions and foster dendrite-free Zn deposition. Side reactions can also be suppressed through tailoring the solvation sheath and restraining the activity of water molecules in electrolyte. A V2 O5 ||ZSM-5||Zn full cell shows significantly enhanced performance compared to cells using glass fiber separator. Specifically, it exhibits a high specific capacity of 300 mAh g-1 , and a capacity retention of 98.67% after 1000 cycles and 82.67% after 3000 cycles at 1 A g-1 . It is attested that zeolites (ZSM-5, H-β, and Bate) with channel sizes of 5-7 Å result in best cycle stability. Given the low cost and recyclability of the ZSM and its potent function, this work may further lower the cost and boost the industrial application of AZIBs. Ministry of Education (MOE) Submitted/Accepted version This work was supported by the National Natural Science Foundation of China (No. 22172103, 21773009). H.J.F. acknowledges financial support from the Singapore Ministry of Education by Academic Research Fund Tier 2 (MOE-T2EP50121-0006). 2022-11-18T05:58:46Z 2022-11-18T05:58:46Z 2022 Journal Article Zhu, J., Bie, Z., Cai, X., Jiao, Z., Wang, Z., Tao, J., Song, W. & Fan, H. J. (2022). A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life. Advanced Materials, 34(43), 2207209-. https://dx.doi.org/10.1002/adma.202207209 0935-9648 https://hdl.handle.net/10356/163066 10.1002/adma.202207209 36065756 2-s2.0-85138737660 43 34 2207209 en MOE-T2EP50121-0006 Advanced Materials © 2022 Wiley-VCH GmbH. All rights reserved. This is the peer reviewed version of the following article: Zhu, J., Bie, Z., Cai, X., Jiao, Z., Wang, Z., Tao, J., Song, W. & Fan, H. J. (2022). A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life. Advanced Materials, 34(43), 2207209-, which has been published in final form at https://doi.org/10.1002/adma.202207209. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
Aqueous Zn Batteries
Dendrites
spellingShingle Science::Physics
Aqueous Zn Batteries
Dendrites
Zhu, Junbo
Bie, Zhe
Cai, Xinxin
Jiao, Zhaoyang
Wang, Ziting
Tao, Jingchen
Song, Weixing
Fan, Hong Jin
A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
description The poor stability of the zinc-metal anode is a main bottleneck for practical application of aqueous zinc-ion batteries. Herein, a series of molecular sieves with various channel sizes are investigated as an electrolyte host to regulate the ionic environment of Zn2+ on the surface of the zinc anode and to realize separator-free batteries. Based on the ZSM-5 molecular sieve, a solid-liquid mixed electrolyte membrane is constructed to uniformize the transport of zinc ions and foster dendrite-free Zn deposition. Side reactions can also be suppressed through tailoring the solvation sheath and restraining the activity of water molecules in electrolyte. A V2 O5 ||ZSM-5||Zn full cell shows significantly enhanced performance compared to cells using glass fiber separator. Specifically, it exhibits a high specific capacity of 300 mAh g-1 , and a capacity retention of 98.67% after 1000 cycles and 82.67% after 3000 cycles at 1 A g-1 . It is attested that zeolites (ZSM-5, H-β, and Bate) with channel sizes of 5-7 Å result in best cycle stability. Given the low cost and recyclability of the ZSM and its potent function, this work may further lower the cost and boost the industrial application of AZIBs.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Zhu, Junbo
Bie, Zhe
Cai, Xinxin
Jiao, Zhaoyang
Wang, Ziting
Tao, Jingchen
Song, Weixing
Fan, Hong Jin
format Article
author Zhu, Junbo
Bie, Zhe
Cai, Xinxin
Jiao, Zhaoyang
Wang, Ziting
Tao, Jingchen
Song, Weixing
Fan, Hong Jin
author_sort Zhu, Junbo
title A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
title_short A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
title_full A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
title_fullStr A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
title_full_unstemmed A molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
title_sort molecular-sieve electrolyte membrane enables separator-free zinc batteries with ultralong cycle life
publishDate 2022
url https://hdl.handle.net/10356/163066
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