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Title: Artificial Solid Electrolyte Interphase for Suppressing Surface Reactions and Cathode Dissolution in Aqueous Zinc Ion Batteries

Abstract

Vanadium-based compounds have been widely used as electrode materials in aqueous zinc ion batteries (ZIBs) due to the multiple oxidation states of vanadium and their open framework structure. However, the solubility of vanadium in aqueous electrolytes and the formation of byproducts during the charge/discharge process cause severe capacity fading and limit cycle life. Here in this paper, we report an ultrathin HfO 2 film as an artificial solid electrolyte interphase (SEI) that is uniformly and conformally deposited by atomic layer deposition (ALD). The inactive hafnium(IV) oxide (HfO 2) film not only decreases byproduct (Zn 4SO 4(OH) 6·xH 2O) formation on the surface of Zn 3V 2O 7(OH) 2·2H 2O (ZVO) but also suppresses the ZVO cathode dissolution in the electrolyte. As a result, the obtained HfO 2-coated ZVO cathodes deliver higher capacity and better cycle life (227 mAh g –1@100 mA g –1, 90% retention over 100 cycles) compared with pristine ZVO (170 mAh g –1@100 mA g –1, 45% retention over 100 cycles). A mechanistic investigation of the role of HfO 2 is presented, along with data showing that our method constitutes a general strategy for other cathodes to enhance their performance in aqueous ZIBs.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  2. Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; King Abdullah University of Science and Technology (KAUST)
OSTI Identifier:
1595139
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 4; Journal Issue: 12; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Guo, Jing, Ming, Jun, Lei, Yongjiu, Zhang, Wenli, Xia, Chuan, Cui, Yi, and Alshareef, Husam N. Artificial Solid Electrolyte Interphase for Suppressing Surface Reactions and Cathode Dissolution in Aqueous Zinc Ion Batteries. United States: N. p., 2019. Web. doi:10.1021/acsenergylett.9b02029.
Guo, Jing, Ming, Jun, Lei, Yongjiu, Zhang, Wenli, Xia, Chuan, Cui, Yi, & Alshareef, Husam N. Artificial Solid Electrolyte Interphase for Suppressing Surface Reactions and Cathode Dissolution in Aqueous Zinc Ion Batteries. United States. doi:10.1021/acsenergylett.9b02029.
Guo, Jing, Ming, Jun, Lei, Yongjiu, Zhang, Wenli, Xia, Chuan, Cui, Yi, and Alshareef, Husam N. Wed . "Artificial Solid Electrolyte Interphase for Suppressing Surface Reactions and Cathode Dissolution in Aqueous Zinc Ion Batteries". United States. doi:10.1021/acsenergylett.9b02029.
@article{osti_1595139,
title = {Artificial Solid Electrolyte Interphase for Suppressing Surface Reactions and Cathode Dissolution in Aqueous Zinc Ion Batteries},
author = {Guo, Jing and Ming, Jun and Lei, Yongjiu and Zhang, Wenli and Xia, Chuan and Cui, Yi and Alshareef, Husam N.},
abstractNote = {Vanadium-based compounds have been widely used as electrode materials in aqueous zinc ion batteries (ZIBs) due to the multiple oxidation states of vanadium and their open framework structure. However, the solubility of vanadium in aqueous electrolytes and the formation of byproducts during the charge/discharge process cause severe capacity fading and limit cycle life. Here in this paper, we report an ultrathin HfO2 film as an artificial solid electrolyte interphase (SEI) that is uniformly and conformally deposited by atomic layer deposition (ALD). The inactive hafnium(IV) oxide (HfO2) film not only decreases byproduct (Zn4SO4(OH)6·xH2O) formation on the surface of Zn3V2O7(OH)2·2H2O (ZVO) but also suppresses the ZVO cathode dissolution in the electrolyte. As a result, the obtained HfO2-coated ZVO cathodes deliver higher capacity and better cycle life (227 mAh g–1@100 mA g–1, 90% retention over 100 cycles) compared with pristine ZVO (170 mAh g–1@100 mA g–1, 45% retention over 100 cycles). A mechanistic investigation of the role of HfO2 is presented, along with data showing that our method constitutes a general strategy for other cathodes to enhance their performance in aqueous ZIBs.},
doi = {10.1021/acsenergylett.9b02029},
journal = {ACS Energy Letters},
number = 12,
volume = 4,
place = {United States},
year = {2019},
month = {10}
}

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This content will become publicly available on October 23, 2020
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