1
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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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2
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Sultana F, Althubeiti K, Abualnaja KM, Wang J, Zaman A, Ali A, Arbab SA, Uddin S, Yang Q. An innovative approach towards the simultaneous enhancement of the oxygen reduction and evolution reactions using a redox mediator in polymer based Li-O 2 batteries. Dalton Trans 2021; 50:16386-16394. [PMID: 34734595 DOI: 10.1039/d1dt03033g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For safety concerns, polymer-based Li-O2 batteries have received more attention than traditional non-aqueous Li-O2 batteries. However, poor cycling stability, low round trip efficiency, and over charge potential during cycling are the major shortcomings for their future applications. In this work, a soluble redox mediator integrated into a polymer electrolyte provides immediate access to the solid discharged product, lowering the energy barrier for reversible Li2O2 generation and disintegration. Moreover, introducing a redox mediator to the polymer electrolyte boosts the ORR during discharge and the OER during the recharge process. The synergistic redox mediator pBQ (1,4 benzoquinone) dramatically reduces the over-potential. A small proportion of pBQ in the polymer electrolyte allows Li2O2 to develop in a thin film-like morphology on the cathode surface, resulting in a high reversible capacity of ∼12 000 mA h g-1 and an extended cycling stability of 100 cycles at 200 mA g-1 with a cut-off capacity of 1000 mA h g-1. The remarkable cell performance is attributed to the fast kinetics of para benzoquinone for the ORR and OER in Li-O2 batteries. The use of a redox mediator in a polymer electrolyte opens a new avenue for practical Li-O2 battery applications in achieving low charge potential and excellent energy efficiency.
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Affiliation(s)
- Fozia Sultana
- Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei 230026, Anhui, P. R. China.
| | - Khaled Althubeiti
- Department of Chemistry, College of Science, Taif University, P. O Box 11099, Taif 21944, Saudi Arabia.
| | - Khamael M Abualnaja
- Department of Chemistry, College of Science, Taif University, P. O Box 11099, Taif 21944, Saudi Arabia.
| | - Jiahui Wang
- Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei 230026, Anhui, P. R. China.
| | - Abid Zaman
- Department of Physics, Riphah International University, Islamabad 44000, Pakistan.
| | - Asad Ali
- Department of Physics, Riphah International University, Islamabad 44000, Pakistan.
| | - Safeer Ahmad Arbab
- Founding Director Centre for Material Science, Islamia College University Peshawar, Pakistan.
| | - Sarir Uddin
- Department of Physics, Government College Hayatabad, Peshawar 25000, Pakistan.
| | - Qing Yang
- Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei 230026, Anhui, P. R. China.
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3
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Morimoto K, Kusumoto T, Nishioka K, Kamiya K, Mukouyama Y, Nakanishi S. Dynamic Changes in Charge Transfer Resistances during Cycling of Aprotic Li-O 2 Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42803-42810. [PMID: 32808758 DOI: 10.1021/acsami.0c11382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Various electrolyte components have been investigated with the aim of improving the cycle life of lithium-oxygen (Li-O2) batteries. A tetraglyme-based electrolyte containing dual anions of Br- and NO3- is a promising electrolyte system in which the cell voltage during charging is reduced because of the redox-mediator function of the Br-/Br3- and NO2-/NO2 couples, while the Li-metal anode is protected by Li2O formed via the reaction between Li metal and NO3-. To maximize the potential of this system, the fundamental factors that limit the cycle life should be clarified. In the present work, we used nondestructive electrochemical impedance spectroscopy to analyze the temporal change of the charge transfer resistances during cycles of Li-O2 batteries with dual anions. The charge transfer resistance at the cathode was revealed to exhibit good correlation with the reduction of the discharge voltage. These results, combined with the results of electrode surface inspections, revealed that irreversible accumulation of insulating deposits such as Li2O2 and Li2CO3 on the cathode surface was a major cause of the short cycle life. Furthermore, the analyses of the time course of the solution resistance suggested that diminished reactivity between the redox mediators and Li2O2 was a critical factor that led to the irreversible accumulation of the less-reactive Li2O2 on the cathode and eventually to a shortened cycle life. These findings indicated that increasing the reactivity between Br3- and Li2O2 is essentially important for improving the cycle stability of Li-O2 batteries and the reactivity can be nondestructively assessed by tracking the dynamic changes in the solution resistance.
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Affiliation(s)
- Kota Morimoto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Takayoshi Kusumoto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Kiho Nishioka
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Kazuhide Kamiya
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Yoshiharu Mukouyama
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Division of Science, College of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350-0394, Japan
| | - Shuji Nakanishi
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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4
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Rojaee R, Shahbazian-Yassar R. Two-Dimensional Materials to Address the Lithium Battery Challenges. ACS NANO 2020; 14:2628-2658. [PMID: 32083832 DOI: 10.1021/acsnano.9b08396] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the ever-growing demand in safe and high power/energy density of Li+ ion and Li metal rechargeable batteries (LIBs), materials-related challenges are responsible for the majority of performance degradation in such batteries. These challenges include electrochemically induced phase transformations, repeated volume expansion and stress concentrations at interfaces, poor electrical and mechanical properties, low ionic conductivity, dendritic growth of Li, oxygen release and transition metal dissolution of cathodes, polysulfide shuttling in Li-sulfur batteries, and poor reversibility of lithium peroxide/superoxide products in Li-O2 batteries. Owing to compelling physicochemical and structural properties, in recent years two-dimensional (2D) materials have emerged as promising candidates to address the challenges in LIBs. This Review highlights the cutting-edge advances of LIBs by using 2D materials as cathodes, anodes, separators, catalysts, current collectors, and electrolytes. It is shown that 2D materials can protect the electrode materials from pulverization, improve the synergy of Li+ ion deposition, facilitate Li+ ion flux through electrolyte and electrode/electrolyte interfaces, enhance thermal stability, block the lithium polysulfide species, and facilitate the formation/decomposition of Li-O2 discharge products. This work facilitates the design of safe Li batteries with high energy and power density by using 2D materials.
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Affiliation(s)
- Ramin Rojaee
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Reza Shahbazian-Yassar
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, Illinois 60607, United States
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5
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Baik JH, Lee SY, Kim K, Bae S, Kim S, Kwak S, Hong DG, Nam I, Yi J, Lee JC. Enhanced cycle stability of rechargeable Li-O2 batteries using immobilized redox mediator on air cathode. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.11.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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Tamirat AG, Guan X, Liu J, Luo J, Xia Y. Redox mediators as charge agents for changing electrochemical reactions. Chem Soc Rev 2020; 49:7454-7478. [DOI: 10.1039/d0cs00489h] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This review provides a comprehensive discussion toward understanding the effects of RMs in electrochemical systems, underlying redox mechanisms, and reaction kinetics both experimentally and theoretically.
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Affiliation(s)
- Andebet Gedamu Tamirat
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Xuze Guan
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jingyuan Liu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Jiayan Luo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yongyao Xia
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
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7
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Lai J, Xing Y, Chen N, Li L, Wu F, Chen R. Elektrolyte für wiederaufladbare Lithium‐Luft‐Batterien. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903459] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jingning Lai
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
| | - Yi Xing
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
| | - Nan Chen
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
| | - Li Li
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
- Collaborative Innovation Center of Electric Vehicles in Beijing Peking 100081 China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
- Collaborative Innovation Center of Electric Vehicles in Beijing Peking 100081 China
| | - Renjie Chen
- Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Peking 100081 China
- Collaborative Innovation Center of Electric Vehicles in Beijing Peking 100081 China
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8
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Lai J, Xing Y, Chen N, Li L, Wu F, Chen R. Electrolytes for Rechargeable Lithium-Air Batteries. Angew Chem Int Ed Engl 2019; 59:2974-2997. [PMID: 31124264 DOI: 10.1002/anie.201903459] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Indexed: 01/08/2023]
Abstract
Lithium-air batteries are promising devices for electrochemical energy storage because of their ultrahigh energy density. However, it is still challenging to achieve practical Li-air batteries because of their severe capacity fading and poor rate capability. Electrolytes are the prime suspects for cell failure. In this Review, we focus on the opportunities and challenges of electrolytes for rechargeable Li-air batteries. A detailed summary of the reaction mechanisms, internal compositions, instability factors, selection criteria, and design ideas of the considered electrolytes is provided to obtain appropriate strategies to meet the battery requirements. In particular, ionic liquid (IL) electrolytes and solid-state electrolytes show exciting opportunities to control both the high energy density and safety.
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Affiliation(s)
- Jingning Lai
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yi Xing
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Nan Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Li Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.,Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.,Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
| | - Renjie Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.,Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
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9
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Shu C, Wang J, Long J, Liu HK, Dou SX. Understanding the Reaction Chemistry during Charging in Aprotic Lithium-Oxygen Batteries: Existing Problems and Solutions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1804587. [PMID: 30767276 DOI: 10.1002/adma.201804587] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/17/2018] [Indexed: 06/09/2023]
Abstract
The aprotic lithium-oxygen (Li-O2 ) battery has excited huge interest due to it having the highest theoretical energy density among the different types of rechargeable battery. The facile achievement of a practical Li-O2 battery has been proven unrealistic, however. The most significant barrier to progress is the limited understanding of the reaction processes occurring in the battery, especially during the charging process on the positive electrode. Thus, understanding the charging mechanism is of crucial importance to enhance the Li-O2 battery performance and lifetime. Here, recent progress in understanding the electrochemistry and chemistry related to charging in Li-O2 batteries is reviewed along with the strategies to address the issues that exist in the charging process at the present stage. The properties of Li2 O2 and the mechanisms of Li2 O2 oxidation to O2 on charge are discussed comprehensively, as are the accompanied parasitic chemistries, which are considered as the underlying issues hindering the reversibility of Li-O2 batteries. Based on the detailed discussion of the charging mechanism, innovative strategies for addressing the issues for the charging process are discussed in detail. This review has profound implications for both a better understanding of charging chemistry and the development of reliable rechargeable Li-O2 batteries in the future.
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Affiliation(s)
- Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1# Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, P. R. China
- Institute for Superconducting and Electronic Materials, University of Wollongong, NSW, 2522, Australia
| | - Jiazhao Wang
- Institute for Superconducting and Electronic Materials, University of Wollongong, NSW, 2522, Australia
| | - Jianping Long
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1# Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, P. R. China
| | - Hua-Kun Liu
- Institute for Superconducting and Electronic Materials, University of Wollongong, NSW, 2522, Australia
| | - Shi-Xue Dou
- Institute for Superconducting and Electronic Materials, University of Wollongong, NSW, 2522, Australia
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10
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Hase Y, Komori Y, Kusumoto T, Harada T, Seki J, Shiga T, Kamiya K, Nakanishi S. Negative differential resistance as a critical indicator for the discharge capacity of lithium-oxygene batteries. Nat Commun 2019; 10:596. [PMID: 30723201 PMCID: PMC6363801 DOI: 10.1038/s41467-019-08536-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 01/16/2019] [Indexed: 11/13/2022] Open
Abstract
In non-aqueous lithium-oxygen batteries, the one-electron reduction of oxygen and subsequent lithium oxide formation both occur during discharge. This lithium oxide can be converted to insulating lithium peroxide via two different pathways: a second reduction at the cathode surface or disproportionation in solution. The latter process is known to be advantageous with regard to increasing the discharge capacity and is promoted by a high donor number electrolyte because of the stability of lithium oxide in media of this type. Herein, we report that the cathodic oxygen reduction reaction during discharge typically exhibits negative differential resistance. Importantly, the magnitude of negative differential resistance, which varies with the system component, and the position of the cathode potential relative to the negative differential resistance determined the reaction pathway and the discharge capacity. This result implies that the stability of lithium oxide on the cathode also contributes to the determination of the reaction pathway.
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Affiliation(s)
- Yoko Hase
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan.
| | - Yasuhiro Komori
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Takayoshi Kusumoto
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Takashi Harada
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Juntaro Seki
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Tohru Shiga
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Kazuhide Kamiya
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Shuji Nakanishi
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
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11
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Wang KX, Zhu QC, Chen JS. Strategies toward High-Performance Cathode Materials for Lithium-Oxygen Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800078. [PMID: 29750439 DOI: 10.1002/smll.201800078] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/09/2018] [Indexed: 06/08/2023]
Abstract
Rechargeable aprotic lithium (Li)-O2 batteries with high theoretical energy densities are regarded as promising next-generation energy storage devices and have attracted considerable interest recently. However, these batteries still suffer from many critical issues, such as low capacity, poor cycle life, and low round-trip efficiency, rendering the practical application of these batteries rather sluggish. Cathode catalysts with high oxygen reduction reaction (ORR) and evolution reaction activities are of particular importance for addressing these issues and consequently promoting the application of Li-O2 batteries. Thus, the rational design and preparation of the catalysts with high ORR activity, good electronic conductivity, and decent chemical/electrochemical stability are still challenging. In this Review, the strategies are outlined including the rational selection of catalytic species, the introduction of a 3D porous structure, the formation of functional composites, and the heteroatom doping which succeeded in the design of high-performance cathode catalysts for stable Li-O2 batteries. Perspectives on enhancing the overall electrochemical performance of Li-O2 batteries based on the optimization of the properties and reliability of each part of the battery are also made. This Review sheds some new light on the design of highly active cathode catalysts and the development of high-performance lithium-O2 batteries.
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Affiliation(s)
- Kai-Xue Wang
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Qian-Cheng Zhu
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
- Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Shaanxi, 710021, P. R. China
| | - Jie-Sheng Chen
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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12
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Zhang P, Zhao Y, Zhang X. Functional and stability orientation synthesis of materials and structures in aprotic Li–O2batteries. Chem Soc Rev 2018; 47:2921-3004. [DOI: 10.1039/c8cs00009c] [Citation(s) in RCA: 224] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review presents the recent advances made in the functional and stability orientation synthesis of materials/structures for Li–O2batteries.
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Affiliation(s)
- Peng Zhang
- Key Lab for Special Functional Materials of Ministry of Education
- Collaborative Innovation Center of Nano Functional Materials and Applications
- Henan University
- Kaifeng
- P. R. China
| | - Yong Zhao
- Key Lab for Special Functional Materials of Ministry of Education
- Collaborative Innovation Center of Nano Functional Materials and Applications
- Henan University
- Kaifeng
- P. R. China
| | - Xinbo Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
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13
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Park JB, Lee SH, Jung HG, Aurbach D, Sun YK. Redox Mediators for Li-O 2 Batteries: Status and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1704162. [PMID: 29178214 DOI: 10.1002/adma.201704162] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/04/2017] [Indexed: 06/07/2023]
Abstract
Li-O2 batteries have received much attention due to their extremely large theoretical energy density. However, the high overpotentials required for charging Li-O2 batteries lower their energy efficiency and degrade the electrolytes and carbon electrodes. This problem is one of the main obstacles in developing practical Li-O2 batteries. To solve this problem, it is important to facilitate the oxidation of Li2 O2 upon charging by using effective electrocatalysis. Using solid catalysts is not too effective for oxidizing the electronically isolating Li-peroxide layers. In turn, for soluble catalysts, red-ox mediators (RMs) are homogeneously dissolved in the electrolyte solutions and can effectively oxidize all of the Li2 O2 precipitated during discharge. RMs can decompose solid Li2 O2 species no matter their size, morphology, or thickness and thus dramatically increase energy efficiency. However, some negative side effects, such as the shuttle reactions of RMs and deterioration of the Li-metal occur. Therefore, it is necessary to study the activity and stability of RMs in Li-O2 batteries in detail. Herein, recent studies related to redox mediators are reviewed and the mechanisms of redox reactions are illustrated. The development opportunities of RMs for this important battery technology are discussed and future directions are suggested.
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Affiliation(s)
- Jin-Bum Park
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, South Korea
| | - Seon Hwa Lee
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, South Korea
| | - Hun-Gi Jung
- Center for Energy Convergence Research, Green City Technology Institute, Korea Institute of Science and Technology, Seoul, 136-791, Republic of Korea
| | - Doron Aurbach
- Department of Chemistry, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Yang-Kook Sun
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, South Korea
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14
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Kim B, Takechi K, Ma S, Verma S, Fu S, Desai A, Pawate AS, Mizuno F, Kenis PJA. Non-Aqueous Primary Li-Air Flow Battery and Optimization of its Cathode through Experiment and Modeling. CHEMSUSCHEM 2017; 10:4198-4206. [PMID: 28941070 DOI: 10.1002/cssc.201701255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/17/2017] [Indexed: 06/07/2023]
Abstract
A primary Li-air battery has been developed with a flowing Li-ion free ionic liquid as the recyclable electrolyte, boosting power capability by promoting superoxide diffusion and enhancing discharge capacity through separately stored discharge products. Experimental and computational tools are used to analyze the cathode properties, leading to a set of parameters that improve the discharge current density of the non-aqueous Li-air flow battery. The structure and configuration of the cathode gas diffusion layers (GDLs) are systematically modified by using different levels of hot pressing and the presence or absence of a microporous layer (MPL). These experiments reveal that the use of thinner but denser MPLs is key for performance optimization; indeed, this leads to an improvement in discharge current density. Also, computational results indicate that the extent of electrolyte immersion and porosity of the cathode can be optimized to achieve higher current density.
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Affiliation(s)
- Byoungsu Kim
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Kensuke Takechi
- Materials Research Department, Toyota Research Institute of North America, 1555 Woodridge Avenue, Ann Arbor, MI, 48105, USA
| | - Sichao Ma
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Sumit Verma
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Shiqi Fu
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Amit Desai
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Ashtamurthy S Pawate
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Fuminori Mizuno
- Materials Research Department, Toyota Research Institute of North America, 1555 Woodridge Avenue, Ann Arbor, MI, 48105, USA
- Toyota Motor Corporation, Higashifuji Technical Center, 1200 Mishuku, Susono, Shizuoka, 410-1193, Japan
| | - Paul J A Kenis
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
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