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Title: A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode

Abstract

Although non-aqueous Li-ion batteries possess significantly higher energy density than their aqueous counterparts, the latter can be more feasible for grid-scale applications when cost, safety and cycle life are taken into consideration. Moreover, aqueous Zn-ion batteries have an energy storage advantage over alkali-based batteries as they can employ Zn metal as the negative electrode, dramatically increasing energy density. However, their development is plagued by a limited choice of positive electrodes, which often show poor rate capability and inadequate cycle life. We report a vanadium oxide bronze pillared by interlayer Zn 2+ ions and water (Zn 0.25V 2O 5nH 2O), as the positive electrode for a Zn cell. A reversible Zn 2+ ion (de)intercalation storage process at fast rates, with more than one Zn 2+ per formula unit (a capacity up to 300 mAh g -1), is characterized. The Zn cell offers an energy density of ~450 Wh l -1 and exhibits a capacity retention of more than 80% over 1,000 cycles, with no dendrite formation at the Zn electrode.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Univ. of Waterloo, ON (Canada). Dept. of Chemistry and Waterloo Inst. for Nanotechnology
Publication Date:
Research Org.:
Univ. of Waterloo, ON (Canada)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Natural Resources Canada (NRCan); Natural Sciences and Engineering Research Council of Canada (NSERC)
OSTI Identifier:
1469690
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Energy
Additional Journal Information:
Journal Volume: 1; Journal Issue: 10; Journal ID: ISSN 2058-7546
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Kundu, Dipan, Adams, Brian D., Duffort, Victor, Vajargah, Shahrzad Hosseini, and Nazar, Linda F. A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode. United States: N. p., 2016. Web. doi:10.1038/NENERGY.2016.119.
Kundu, Dipan, Adams, Brian D., Duffort, Victor, Vajargah, Shahrzad Hosseini, & Nazar, Linda F. A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode. United States. doi:10.1038/NENERGY.2016.119.
Kundu, Dipan, Adams, Brian D., Duffort, Victor, Vajargah, Shahrzad Hosseini, and Nazar, Linda F. Fri . "A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode". United States. doi:10.1038/NENERGY.2016.119. https://www.osti.gov/servlets/purl/1469690.
@article{osti_1469690,
title = {A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode},
author = {Kundu, Dipan and Adams, Brian D. and Duffort, Victor and Vajargah, Shahrzad Hosseini and Nazar, Linda F.},
abstractNote = {Although non-aqueous Li-ion batteries possess significantly higher energy density than their aqueous counterparts, the latter can be more feasible for grid-scale applications when cost, safety and cycle life are taken into consideration. Moreover, aqueous Zn-ion batteries have an energy storage advantage over alkali-based batteries as they can employ Zn metal as the negative electrode, dramatically increasing energy density. However, their development is plagued by a limited choice of positive electrodes, which often show poor rate capability and inadequate cycle life. We report a vanadium oxide bronze pillared by interlayer Zn2+ ions and water (Zn0.25V2O5•nH2O), as the positive electrode for a Zn cell. A reversible Zn2+ ion (de)intercalation storage process at fast rates, with more than one Zn2+ per formula unit (a capacity up to 300 mAh g-1), is characterized. The Zn cell offers an energy density of ~450 Wh l-1 and exhibits a capacity retention of more than 80% over 1,000 cycles, with no dendrite formation at the Zn electrode.},
doi = {10.1038/NENERGY.2016.119},
journal = {Nature Energy},
number = 10,
volume = 1,
place = {United States},
year = {2016},
month = {8}
}

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