1
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Zhu F, Guo W, Fu Y. Functional materials for aqueous redox flow batteries: merits and applications. Chem Soc Rev 2023; 52:8410-8446. [PMID: 37947236 DOI: 10.1039/d3cs00703k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Redox flow batteries (RFBs) are promising electrochemical energy storage systems, offering vast potential for large-scale applications. Their unique configuration allows energy and power to be decoupled, making them highly scalable and flexible in design. Aqueous RFBs stand out as the most promising technologies, primarily due to their inexpensive supporting electrolytes and high safety. For aqueous RFBs, there has been a skyrocketing increase in studies focusing on the development of advanced functional materials that offer exceptional merits. They include redox-active materials with high solubility and stability, electrodes with excellent mechanical and chemical stability, and membranes with high ion selectivity and conductivity. This review summarizes the types of aqueous RFBs currently studied, providing an outline of the merits needed for functional materials from a practical perspective. We discuss design principles for redox-active candidates that can exhibit excellent performance, ranging from inorganic to organic active materials, and summarize the development of and need for electrode and membrane materials. Additionally, we analyze the mechanisms that cause battery performance decay from intrinsic features to external influences. We also describe current research priorities and development trends, concluding with a summary of future development directions for functional materials with valuable insights for practical applications.
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Affiliation(s)
- Fulong Zhu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Wei Guo
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Yongzhu Fu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
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2
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Hatakeyama-Sato K, Oyaizu K. Redox: Organic Robust Radicals and Their Polymers for Energy Conversion/Storage Devices. Chem Rev 2023; 123:11336-11391. [PMID: 37695670 DOI: 10.1021/acs.chemrev.3c00172] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Persistent radicals can hold their unpaired electrons even under conditions where they accumulate, leading to the unique characteristics of radical ensembles with open-shell structures and their molecular properties, such as magneticity, radical trapping, catalysis, charge storage, and electrical conductivity. The molecules also display fast, reversible redox reactions, which have attracted particular attention for energy conversion and storage devices. This paper reviews the electrochemical aspects of persistent radicals and the corresponding macromolecules, radical polymers. Radical structures and their redox reactions are introduced, focusing on redox potentials, bistability, and kinetic constants for electrode reactions and electron self-exchange reactions. Unique charge transport and storage properties are also observed with the accumulated form of redox sites in radical polymers. The radical molecules have potential electrochemical applications, including in rechargeable batteries, redox flow cells, photovoltaics, diodes, and transistors, and in catalysts, which are reviewed in the last part of this paper.
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Affiliation(s)
- Kan Hatakeyama-Sato
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552, Japan
- Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
| | - Kenichi Oyaizu
- Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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3
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Yang G, Zhu Y, Hao Z, Lu Y, Zhao Q, Zhang K, Chen J. Organic Electroactive Materials for Aqueous Redox Flow Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301898. [PMID: 37158492 DOI: 10.1002/adma.202301898] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/21/2023] [Indexed: 05/10/2023]
Abstract
Organic electroactive materials take advantage of potentially sustainable production and structural tunability compared to present commercial inorganic materials. Unfortunately, traditional redox flow batteries based on toxic redox-active metal ions have certain deficiencies in resource utilization and environmental protection. In comparison, organic electroactive materials in aqueous redox flow batteries (ARFBs) have received extensive attention in recent years for low-cost and sustainable energy storage systems due to their inherent safety. This review aims to provide the recent progress in organic electroactive materials for ARFBs. The main reaction types of organic electroactive materials are classified in ARFBs to provide an overview of how to regulate their solubility, potential, stability, and viscosity. Then, the organic anolyte and catholyte in ARFBs are summarized according to the types of quinones, viologens, nitroxide radicals, hydroquinones, etc, and how to increase the solubility by designing various functional groups is emphasized. The research advances are presented next in the characterization of organic electroactive materials for ARFBs. Future efforts are finally suggested to focus on building neutral ARFBs, designing advanced electroactive materials through molecular engineering, and resolving problems of commercial applications.
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Affiliation(s)
- Gaojing Yang
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yaxun Zhu
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Zhimeng Hao
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yong Lu
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Qing Zhao
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Kai Zhang
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Jun Chen
- Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), State Key Laboratory of Advanced Chemical Power Sources, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
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4
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Zheng X, Peng Y, Xu S, Huang L, Liu Y, Li D, Zhu J, Jiang D. NiCoP-nanocubes-decorated CoSe 2 nanowire arrays as high-performance electrocatalysts toward oxygen evolution reaction. J Colloid Interface Sci 2023; 648:141-148. [PMID: 37295366 DOI: 10.1016/j.jcis.2023.05.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Designing effective, robust, and low-cost catalysts for oxygen evolution reaction (OER) is an urgent requirement yet challenging task in water electrolysis. In this study, a NiCoP-nanocubes-decorated CoSe2 nanowires arrays three-dimensional/two-dimensional (3D/2D) electrocatalyst (NiCoP-CoSe2-2) was developed for catalyzing OER via a combined selenylation, co-precipitation, and phosphorization method. The as-obtained NiCoP-CoSe2-2 3D/2D electrocatalyst exhibits a low overpotential of 202 mV at 10 mA cm-2 with a small Tafel slope of 55.6 mV dec-1, which is superior to most of reported CoSe2 and NiCoP-based heterogeneous electrocatalysts. Experimental analyses and density functional theory (DFT) calculations proof that the interfacial coupling and synergy between CoSe2 nanowires and NiCoP nanocubes are not only beneficial to strengthen the charge transfer ability and accelerate reaction kinetics, but also facilitate the optimization of interfacial electronic structure, thereby enhancing the OER property of NiCoP-CoSe2-2. This study offers insights for the investigation and construction of transition metal phosphide/selenide heterogeneous electrocatalyst toward OER in alkaline media and broadens the prospect of industrial applications in energy storage and conversion fields.
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Affiliation(s)
- Xinyu Zheng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ying Peng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shengjie Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Longhui Huang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Jianjun Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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5
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Chen R, Zhang P, Chang Z, Yan J, Kraus T. Grafting and Solubilization of Redox-Active Organic Materials for Aqueous Redox Flow Batteries. CHEMSUSCHEM 2023; 16:e202201993. [PMID: 36625759 DOI: 10.1002/cssc.202201993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/09/2023] [Indexed: 06/17/2023]
Abstract
This study concerns the development of sustainable design strategies of aqueous electrolytes for redox flow batteries using redox-active organic materials. A green spontaneous grafting reaction occurs between a redox-active organic radical and an electrochemically activated structural modifier at room temperature through a simple mixing step. Then, a physical mixing method is used to formulate a structured aqueous electrolyte and enables aqueous solubilization of the organic solute from below 0.5 to 1.5 m beyond the conventional dissolution limit. The as-obtained concentrated mixture can be readily used as catholyte for a redox flow battery. A record high discharge cell voltage (1.6 V onset output voltage) in aqueous non-hybrid flow cell is attained by using the studied electrolytes.
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Affiliation(s)
- Ruiyong Chen
- Saarland University, KIST Europe, 66123, Saarbrücken, Germany
- Materials Innovation Factory, Department of Chemistry, University of Liverpool, L7 3NY, Liverpool, United Kingdom
| | - Peng Zhang
- School of Materials Science and Engineering, Sun Yat-sen University, 510275, Guangzhou, P. R. China
| | - Zhenjun Chang
- College of Materials Science and Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Junfeng Yan
- School of Information Science and Technology, Northwest University, 710127, Xi'an, P. R. China
| | - Tobias Kraus
- INM-Leibniz Institute for New Materials, 66123, Saarbrücken, Germany
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6
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Hatakeyama-Sato K, Sadakuni K, Kitagawa K, Oyaizu K. Thianthrene polymers as 4 V-class organic mediators for redox targeting reaction with LiMn 2O 4 in flow batteries. Sci Rep 2023; 13:5711. [PMID: 37029257 PMCID: PMC10082199 DOI: 10.1038/s41598-023-32506-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/28/2023] [Indexed: 04/09/2023] Open
Abstract
Redox targeting reaction is an emerging idea for boosting the energy density of redox-flow batteries: mobile redox mediators transport electrical charges in the cells, whereas large-density electrode-active materials are fixed in tanks. This study reports 4 V-class organic polymer mediators using thianthrene derivatives as redox units. The higher potentials than conventional organic mediators (up to 3.8 V) enable charging LiMn2O4 as an inorganic cathode offering a large theoretical volumetric capacity of 500 Ah/L. Soluble or nanoparticle polymer design is beneficial for suppressing crossover reactions (ca. 3% after 300 h), simultaneously contributing to mediation reactions. The successful mediation cycles observed by repeated charging/discharging steps indicate the future capability of designing particle-based redox targeting systems with porous separators, benefiting from higher energy density and lower cost.
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Affiliation(s)
| | - Karin Sadakuni
- Department of Applied Chemistry, Waseda University, Tokyo, 169-8555, Japan
| | - Kan Kitagawa
- Advanced Research and Innovation Center, DENSO CORPORATION, Aichi, 470-0111, Japan
| | - Kenichi Oyaizu
- Department of Applied Chemistry, Waseda University, Tokyo, 169-8555, Japan.
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7
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Shao W, Lu B, Cao J, Zhang J, Cao H, Zhang F, Zhang C. The Use of Redox Mediators in Electrocatalysis and Electrosynthesis. Chem Asian J 2023; 18:e202201093. [PMID: 36577711 DOI: 10.1002/asia.202201093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/04/2022] [Indexed: 12/30/2022]
Abstract
Electrocatalysis and electrosynthesis, which convert the electrical energy and store them in the chemical forms, have been considered as promising technologies to utilize green renewable energy sources. Most of the studies focused on developing novel active molecules or advanced electrodes to improve the performance. However, the direct acquisition and electron transferring will be limited by the intrinsic characters of the electrodes. The introduce of redox mediators, which are served as the intermediate electron carriers or reservoirs without changing the final products, provide a unique approach to accelerate the electrochemical performance of these energy conversions. This review provides an overview of the recent development of electrocatalysis and electrosynthesis by using redox mediators, and provides a comprehensive discussion toward focusing on the principles and construction of these systems.
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Affiliation(s)
- Weide Shao
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Biao Lu
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Jinpeng Cao
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Jianing Zhang
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Hairu Cao
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Feifei Zhang
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
| | - Chunling Zhang
- School of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China
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8
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Park J, Kim M, Choi J, Lee S, Kim J, Han D, Jang H, Park M. Recent Progress in High-voltage Aqueous Zinc-based Hybrid Redox Flow Batteries. Chem Asian J 2023; 18:e202201052. [PMID: 36479849 DOI: 10.1002/asia.202201052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
The energy density of redox flow batteries (RFBs) is generally affected by the standard electrode potential and the solubility of the redox active species. These crucial factors are closely related to the solvent in which the active materials are dissolved. Aqueous RFBs have been widely studied due to their excellent reaction kinetics and high solubility of the redox couple in aqueous media. However, the low voltage of conventional aqueous RFBs has hindered them from being candidates for practical applications. Recently, high-voltage aqueous RFBs are implemented based on the low negative potential of the Zn/[Zn(OH)4 ]2- reaction in an alkaline solution. Here, we review recent progress in the design of high energy density RFBs in both aqueous and non-aqueous electrolytes, notably focusing on the Zn/MnO2 hybrid RFBs in detail. Furthermore, strategies for inhibiting zinc dendritic growth and stabilizing manganese redox couple in the RFBs system are discussed.
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Affiliation(s)
- Jihan Park
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Minsoo Kim
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Jinyeong Choi
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Soobeom Lee
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Jueun Kim
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Duho Han
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Hyeokjun Jang
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
| | - Minjoon Park
- Department of Nanoenergy Engineering, Pusan National University, 50, Busandaehak-ro 63 beon-gil 2 Geumjeong-gu, Busan, 46241, Republic of Korea.,Research Center of Energy Convergence Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea.,Department of Nano Fusion Technology, Pusan National University, Busandaehak-ro 63beon-gil 2 Geumjeong-gu, Busan, Republic of Korea
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9
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Fenton A, Ashraf Gandomi Y, Mallia CT, Neyhouse BJ, Kpeglo MA, Exson WE, Wan CTC, Brushett FR. Toward a Mechanically Rechargeable Solid Fuel Flow Battery Based on Earth-Abundant Materials. ACS OMEGA 2022; 7:40540-40547. [PMID: 36385869 PMCID: PMC9648110 DOI: 10.1021/acsomega.2c05798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Metal-air batteries are a promising energy storage solution, but material limitations (e.g., metal passivation and low active material utilization) have stymied their adoption. We investigate a solid fuel flow battery (SFFB) architecture that combines the energy density of metal-air batteries with the modularity of redox flow batteries. Specifically, a metallic solid electrochemical fuel (SEF) is spatially separated from the anodic current collector, a dissolved redox mediator (RM) shuttles charges between the two, and an oxygen reduction cathode completes the circuit. This modification decouples power and energy system components while enabling mechanical recharging and mitigating the effects of nonuniform metal oxidation. We conduct an exploratory study showing that metallic SEFs can chemically reduce organic RMs repeatedly. We subsequently operate a proof-of-concept SFFB cell for ca. 25 days as an initial demonstration of technical feasibility. Overall, this work illustrates the potential of this storage concept and highlights scientific and engineering pathways to improvement.
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Affiliation(s)
- Alexis
M. Fenton
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - Yasser Ashraf Gandomi
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - Christopher T. Mallia
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - Bertrand J. Neyhouse
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - M. Aba Kpeglo
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - William E. Exson
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - Charles Tai-Chieh Wan
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
| | - Fikile R. Brushett
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States
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10
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Gao M, Salla M, Song Y, Wang Q. High‐Power Near‐Neutral Aqueous All Organic Redox Flow Battery Enabled with a Pair of Anionic Redox Species. Angew Chem Int Ed Engl 2022; 61:e202208223. [DOI: 10.1002/anie.202208223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Mengqi Gao
- Department of Materials Science and Engineering College of Design and Engineering National University of Singapore Singapore 117574 Singapore
| | - Manohar Salla
- Department of Materials Science and Engineering College of Design and Engineering National University of Singapore Singapore 117574 Singapore
| | - Yuxi Song
- Department of Materials Science and Engineering College of Design and Engineering National University of Singapore Singapore 117574 Singapore
| | - Qing Wang
- Department of Materials Science and Engineering College of Design and Engineering National University of Singapore Singapore 117574 Singapore
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11
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Gao M, Salla M, Song Y, Wang Q. High‐power Near‐neutral Aqueous All Organic Redox Flow Battery Enabled with a Pair of Anionic Redox Species. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mengqi Gao
- National University of Singapore Materials Science and Engineering SINGAPORE
| | - Manohar Salla
- National University of Singapore Materials Science and Engineering SINGAPORE
| | - Yuxi Song
- National University of Singapore Materials Science and Engineering SINGAPORE
| | - Qing Wang
- National University of Singapore Department of Materials Science and Engineering SINGAPORE
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12
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Luo W, Feng Y, Shen D, Zhou J, Gao C, Lu B. Engineering Ion Diffusion by CoS@SnS Heterojunction for Ultrahigh-Rate and Stable Potassium Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:16379-16385. [PMID: 35353493 DOI: 10.1021/acsami.2c02679] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Transitional metal sulfides (TMSs) are considered as promising anode candidates for potassium storage because of their ultrahigh theoretical capacity and low cost. However, TMSs suffer from low electronic, ionic conductivity and significant volume expansion during potassium ion intercalation. Here, we construct a carbon-coated CoS@SnS heterojunction which effectively alleviates the volume change and improves the electrochemical performance of TMSs. The mechanism analysis and density functional theory (DFT) calculation prove the acceleration of K-ion diffusion by the built-in electric field in the CoS@SnS heterojunction. Specifically, the as-prepared material maintains 81% of its original capacity after 2000 cycles at 500 mA g-1. In addition, when the current density is set at 2000 mA g-1, it can still deliver a high discharge capacity of 210 mAh g-1. Moreover, the full cell can deliver a high capacity of 400 mAh g-1 even after 150 cycles when paired with a perylene-3,4,9,10-tetracarboxydiimide (PTCDI) cathode. This work is expected to provide a material design idea dealing with the unstable and low rate capability problems of potassium-ion batteries.
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Affiliation(s)
- Wendi Luo
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Yanhong Feng
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Dongyang Shen
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Jiang Zhou
- School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China
| | - Caitian Gao
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Bingan Lu
- School of Physics and Electronics, Hunan University, Changsha 410082, China
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
- Hunan Provincial Key Laboratory of Multi-electron based Energy Storage Devices, Hunan University, Changsha 410082, China
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13
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Zhou H. Kinetics of redox-mediated catalysis in batteries. Nat Catal 2022. [DOI: 10.1038/s41929-022-00758-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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