Low-Cost High-Energy Potassium Cathode
Abstract
Potassium has as rich an abundance as sodium in the earth, but the development of a K-ion battery is lagging behind because of the higher mass and larger ionic size of K+ than that of Li+ and Na+, which makes it difficult to identify a high-voltage and high-capacity intercalation cathode host. Here we propose a cyanoperovskite KxMnFe(CN)6 (0 ≤ x ≤ 2) as a potassium cathode: high-spin MnIII/MnII and low-spin FeIII/FeII couples have similar energies and exhibit two close plateaus centered at 3.6 V; two active K+ per formula unit enable a theoretical specific capacity of 156 mAh g-1; Mn and Fe are the two most-desired transition metals for electrodes because they are cheap and environmental friendly. As a powder prepared by an inexpensive precipitation method, the cathode delivers a specific capacity of 142 mAh g-1. Lastly, the observed voltage, capacity, and its low cost make it competitive in large-scale electricity storage applications.
- Authors:
-
[1];
[1];
[2];
[1]
- Univ. of Texas, Austin, TX (United States). Texas Materials Inst.
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1352429
- Report Number(s):
- LA-UR-17-20899
Journal ID: ISSN 0002-7863
- Grant/Contract Number:
- AC52-06NA25396l; SC0005397; CBET-1438007; 7223523
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the American Chemical Society
- Additional Journal Information:
- Journal Volume: 139; Journal Issue: 6; Journal ID: ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Material Science
Citation Formats
Xue, Leigang, Li, Yutao, Gao, Hongcai, Zhou, Weidong, Lü, Xujie, Kaveevivitchai, Watchareeya, Manthiram, Arumugam, and Goodenough, John B. Low-Cost High-Energy Potassium Cathode. United States: N. p., 2017.
Web. doi:10.1021/jacs.6b12598.
Xue, Leigang, Li, Yutao, Gao, Hongcai, Zhou, Weidong, Lü, Xujie, Kaveevivitchai, Watchareeya, Manthiram, Arumugam, & Goodenough, John B. Low-Cost High-Energy Potassium Cathode. United States. https://doi.org/10.1021/jacs.6b12598
Xue, Leigang, Li, Yutao, Gao, Hongcai, Zhou, Weidong, Lü, Xujie, Kaveevivitchai, Watchareeya, Manthiram, Arumugam, and Goodenough, John B. Thu .
"Low-Cost High-Energy Potassium Cathode". United States. https://doi.org/10.1021/jacs.6b12598. https://www.osti.gov/servlets/purl/1352429.
@article{osti_1352429,
title = {Low-Cost High-Energy Potassium Cathode},
author = {Xue, Leigang and Li, Yutao and Gao, Hongcai and Zhou, Weidong and Lü, Xujie and Kaveevivitchai, Watchareeya and Manthiram, Arumugam and Goodenough, John B.},
abstractNote = {Potassium has as rich an abundance as sodium in the earth, but the development of a K-ion battery is lagging behind because of the higher mass and larger ionic size of K+ than that of Li+ and Na+, which makes it difficult to identify a high-voltage and high-capacity intercalation cathode host. Here we propose a cyanoperovskite KxMnFe(CN)6 (0 ≤ x ≤ 2) as a potassium cathode: high-spin MnIII/MnII and low-spin FeIII/FeII couples have similar energies and exhibit two close plateaus centered at 3.6 V; two active K+ per formula unit enable a theoretical specific capacity of 156 mAh g-1; Mn and Fe are the two most-desired transition metals for electrodes because they are cheap and environmental friendly. As a powder prepared by an inexpensive precipitation method, the cathode delivers a specific capacity of 142 mAh g-1. Lastly, the observed voltage, capacity, and its low cost make it competitive in large-scale electricity storage applications.},
doi = {10.1021/jacs.6b12598},
journal = {Journal of the American Chemical Society},
number = 6,
volume = 139,
place = {United States},
year = {2017},
month = {1}
}
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Figure 1: Figure 1. Preparation illustration, SEM and STEM images of (a1, a2, a3) KxMnFe(CN)6 using K+ precursors; (b1, b2, b3) NayMnFe(CN)6 using Na+ precursors. (c1, c2, c3) When Na+ and K+ co-exist with a molar ratio of 1:1 in the solution, only K+ is precipitated (see EDS, XRD andmore »
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journal, January 2019
- Zhang, Ruding; Bao, Jingze; Pan, Yilong
- Chemical Science, Vol. 10, Issue 9
Electrolyte‐Regulated Solid‐Electrolyte Interphase Enables Long Cycle Life Performance in Organic Cathodes for Potassium‐Ion Batteries
journal, December 2018
- Li, Benfang; Zhao, Jin; Zhang, Zihe
- Advanced Functional Materials
SnO 2 as Advanced Anode of Alkali‐Ion Batteries: Inhibiting Sn Coarsening by Crafting Robust Physical Barriers, Void Boundaries, and Heterophase Interfaces for Superior Electrochemical Reaction Reversibility
journal, December 2019
- Zhao, Shiqiang; Sewell, Christopher D.; Liu, Ruiping
- Advanced Energy Materials, Vol. 10, Issue 6
Ammonium Vanadium Bronze as a Potassium-Ion Battery Cathode with High Rate Capability and Cyclability
journal, October 2018
- Xu, Yang; Dong, Huishuang; Zhou, Min
- Small Methods, Vol. 3, Issue 8
A High-Energy-Density Potassium Battery with a Polymer-Gel Electrolyte and a Polyaniline Cathode
journal, April 2018
- Gao, Hongcai; Xue, Leigang; Xin, Sen
- Angewandte Chemie International Edition, Vol. 57, Issue 19
Aluminum Chloride-Graphite Batteries with Flexible Current Collectors Prepared from Earth-Abundant Elements
text, January 2018
- Wang, Shutao; Kravchyk, Kostiantyn V.; Filippin, Alejandro N.
- ETH Zurich
Room-Temperature Liquid Na-K Anode Membranes
journal, October 2018
- Xue, Leigang; Zhou, Weidong; Xin, Sen
- Angewandte Chemie International Edition, Vol. 57, Issue 43
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