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Li M, Wu J, You Z, Dai Z, Gu Y, Shi L, Wu M, Wen Z. Crown Ether Electrolyte Induced Li 2O 2 Amorphization for Low Polarization and Long Lifespan Li-O 2 Batteries. Angew Chem Int Ed Engl 2024; 63:e202403521. [PMID: 38654696 DOI: 10.1002/anie.202403521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/29/2024] [Accepted: 04/22/2024] [Indexed: 04/26/2024]
Abstract
Lithium-oxygen batteries possess an extremely high theoretical energy density, rendering them a prime candidate for next-generation secondary batteries. However, they still face multiple problems such as huge charge polarization and poor life, which lay a significant gap between laboratory research and commercial applications. In this work, we adopt 15-crown-5 ether (C15) as solvent to regulate the generation of discharge products in lithium-oxygen batteries. The coronal structure endows C15 with strong affinity to Li+, firmly stabilizes the intermediate LiO2 and discharge product Li2O2. Thus, the crystalline Li2O2 is amorphized into easily decomposable amorphous products. The lithium-oxygen batteries assembled with 0.5 M C15 electrolyte show an increased discharge capacity from 4.0 mAh cm-2 to 5.7 mAh cm-2 and a low charge overpotential of 0.88 V during the whole lifespan at 0.05 mA cm-2. The batteries with 1 M C15 electrolyte can cycle stably for 140 cycles. Furthermore, the amorphous characteristic of Li2O2 product is preserved when matched with redox mediators such as LiI, with the charge polarization further decreasing to 0.74 V over a cycle life of 190 cycles. This provides new possibilities for electrolyte design to promote Li2O2 amorphization and reduce charge overpotential in lithium-oxygen batteries.
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Affiliation(s)
- Meng Li
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Jiaxin Wu
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Zichang You
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Zhongqin Dai
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
| | - Yuanfan Gu
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Lei Shi
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Meifen Wu
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
| | - Zhaoyin Wen
- The State Key Lab High Performance Ceram & Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, 100049, Beijing, P. R. China
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2
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Zhen C, Yang X, Wei X, Zhu Y, Han S, Shi X, Deng L, Gu MD. Revealing Lithium Nitrate-Mediated Solid-Electrolyte Interphase of Lithium Metal Anode via Cryogenic Transmission Electron Microscopy. NANO LETTERS 2024; 24:6714-6721. [PMID: 38781452 DOI: 10.1021/acs.nanolett.4c01351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The cycle stability of lithium metal anode (LMA) largely depends on solid-electrolyte interphase (SEI). Electrolyte engineering is a common strategy to adjust SEI properties, yet understanding its impact is challenging due to limited knowledge on ultrafine SEI structures. Herein, using cryogenic transmission electron microscopy, we reveal the atomic-level SEI structure of LMA in ether-based electrolytes, focusing on the role of LiNO3 additives in SEI modulation at different temperature (25 and 50 °C). Poor cycle stability of LMA in the baseline electrolyte without LiNO3 additives stems from the Li2CO3-rich mosaic-type SEI. Increased LiNO3 content and elevated operating temperature enhance cyclic performance by forming bilayer or multilayer SEI structures via preferential LiNO3 decomposition, but may thicken the SEI, leading to reduced initial Coulombic efficiency and increased overpotential. The optimal SEI features a multilayer structure with Li2O-rich inner layer and closely packed grains in the outer layer, minimizing electrolyte decomposition or corrosion.
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Affiliation(s)
- Cheng Zhen
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang 315200, China
| | - Xuming Yang
- Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xianbin Wei
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang 315200, China
| | - Yuanmin Zhu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shaobo Han
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang 315200, China
| | - Xiaobo Shi
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li Deng
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - M Danny Gu
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang 315200, China
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3
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Gao Z, Yao J, Yan J, Sun J, Du C, Dai Q, Su Y, Zhao J, Chen J, Li X, Li H, Zhang P, Ma J, Qiu H, Zhang L, Tang Y, Huang J. Atomic-Scale Cryo-TEM Studies of the Electrochemistry of Redox Mediator in Li-O 2 Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311739. [PMID: 38420904 DOI: 10.1002/smll.202311739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/15/2024] [Indexed: 03/02/2024]
Abstract
Rechargeable aprotic lithium (Li)-oxygen battery (LOB) is a potential next-generation energy storage technology because of its high theoretical specific energy. However, the role of redox mediator on the oxide electrochemistry remains unclear. This is partly due to the intrinsic complexity of the battery chemistry and the lack of in-depth studies of oxygen electrodes at the atomic level by reliable techniques. Herein, cryo-transmission electron microscopy (cryo-TEM) is used to study how the redox mediator LiI affects the oxygen electrochemistry in LOBs. It is revealed that with or without LiI in the electrolyte, the discharge products are plate-like LiOH or toroidal Li2 O2 , respectively. The I2 assists the decomposition of LiOH via the formation of LiIO3 in the charge process. In addition, a LiI protective layer is formed on the Li anode surface by the shuttle of I3 - , which inhibits the parasitic Li/electrolyte reaction and improves the cycle performance of the LOBs. The LOBs returned to 2e- oxygen reduction reaction (ORR) to produce Li2 O2 after the LiI in the electrolyte is consumed. This work provides new insight on the role of redox mediator on the complex electrochemistry in LOBs which may aid the design LOBs for practical applications.
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Affiliation(s)
- Zhiying Gao
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jingming Yao
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jitong Yan
- Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jun Sun
- Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Congcong Du
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Qiushi Dai
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Yong Su
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Jun Zhao
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jingzhao Chen
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Xiaomei Li
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Hui Li
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Pan Zhang
- Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Jun Ma
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Hailong Qiu
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Liqiang Zhang
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
| | - Yongfu Tang
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
- Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, P. R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, P. R. China
| | - Jianyu Huang
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P. R. China
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
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4
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Huang R, Zhai Z, Chen X, Liang X, Yu T, Yang Y, Li B, Yin S. Constructing Built-In Electric Field in NiCo 2 O 4 -CeO 2 Heterostructures to Regulate Li 2 O 2 Formation Routes at High Current Densities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310808. [PMID: 38386193 DOI: 10.1002/smll.202310808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/03/2024] [Indexed: 02/23/2024]
Abstract
Developing catalysts with suitable adsorption energy for oxygen-containing intermediates and elucidating their internal structure-performance relationships are essential for the commercialization of Li-O2 batteries (LOBs), especially under high current densities. Herein, NiCo2 O4 -CeO2 heterostructure with a spontaneous built-in electric field (BIEF) is designed and utilized as a cathode catalyst for LOBs at high current density. The driving mechanism of electron pumping/accumulation at heterointerface is studied via experiments and density functional theory (DFT) calculations, elucidating the growth mechanism of discharge products. The results show that BIEF induced by work function difference optimizes the affinity for LiO2 and promotes the formation of nano-flocculent Li2 O2 , thus improving LOBs performance at high current density. Specifically, NiCo2 O4 -CeO2 cathode exhibits a large discharge capacity (9546 mAh g-1 at 4000 mA g-1 ) and high stability (>430 cycles at 4000 mA g-1 ), which are better than the majority of previously reported metal-based catalysts. This work provides a new method for tuning the nucleation and decomposition of Li2 O2 and inspires the design of ideal catalysts for LOBs to operate at high current density.
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Affiliation(s)
- Renshu Huang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Zhixiang Zhai
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Xingfa Chen
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Xincheng Liang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Tianqi Yu
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Yueyao Yang
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Bin Li
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
| | - Shibin Yin
- School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi University, 100 Daxue Road, Nanning, 530004, China
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Zhuang C, Chang Y, Li W, Li S, Xu P, Zhang H, Zhang Y, Zhang C, Gao J, Chen G, Zhang T, Kang Z, Han X. Light-Induced Variation of Lithium Coordination Environment in g-C 3N 4 Nanosheet for Highly Efficient Oxygen Reduction Reactions. ACS NANO 2024. [PMID: 38294412 DOI: 10.1021/acsnano.4c00217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The structure and electronic state of the active center in a single-atom catalyst undergo noticeable changes during a dynamic catalytic process. The metal atom active center is not well demonstrated in a dynamic manner. This study demonstrated that Li metal atoms, serving as active centers, can migrate on a C3N4 monolayer or between C3N4 monolayers when exposed to light irradiation. This migration alters the local coordination environment of Li in the C3N4 nanosheets, leading to a significant enhancement in photocatalytic activity. The photocatalytic H2O2 process could be maintained for 35 h with a 920 mmol/g record-high yield, corresponding to a 0.4% H2O2 concentration, which is far greater than the value (0.1%) of practical application for wastewater treatment. Density functional theory calculations indicated that dynamic Li-coordinated structures contributed to the superhigh photocatalytic activity.
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Affiliation(s)
- Chunqiang Zhuang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Yuan Chang
- Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, People's Republic of China
| | - Weiming Li
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Shijie Li
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, People's Republic of China
| | - Peng Xu
- National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
| | - Hang Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Yihong Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Can Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Junfeng Gao
- Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, People's Republic of China
| | - Ge Chen
- Beijing Key Laboratory for Green Catalysis and Separation, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Tianyang Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou 215123, People's Republic of China
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa 999078, Macao, People's Republic of China
| | - Xiaodong Han
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
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6
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Luo B, Wu J, Zhang M, Zhang Z, Zhang X, Fang Z, Xu Z, Wu M. Surface modification of garnet fillers with a polymeric sacrificial agent enables compatible interfaces of composite solid-state electrolytes. Chem Sci 2023; 14:13067-13079. [PMID: 38023503 PMCID: PMC10664466 DOI: 10.1039/d3sc04710e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
The poly (vinylidene fluoride) (PVDF)-based composite solid-state electrolyte (CSE) has garnered attention due to its excellent comprehensive performance. However, challenges persist in the structural design and preparation process of the ceramic-filled CSE, as the PVDF-based matrix is susceptible to alkaline conditions and dehydrofluorination, leading to its incompatibility with ceramic fillers and hindering the preparation of solid-state electrolytes. In this study, the mechanism of dehydrofluorination failure of a PVDF-based polymer in the presence of Li2CO3 on the surface of Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is analyzed, and an effective strategy is proposed to inhibit the dehydrofluorination failure on the basis of density functional theory (DFT). We introduce a molecule with a small LUMO-HOMO gap as a sacrificial agent, which is able to remove the Li2CO3 impurities. Therefore, the approach of polyacrylic acid (PAA) as a sacrificial agent reduces the degree of dehydrofluorination in the PVDF-based polymer and ensures slurry fluidity, promoting the homogeneous distribution of ceramic fillers in the electrolyte membrane and enhancing compatibility with the polymer. Consequently, the prepared electrolyte membranes exhibit good electrochemical and mechanical properties. The assembled Li-symmetric cell can cycle at 0.1 mA cm-2 for 3500 h. The LiFePO4‖Li cell maintains 91.45% of its initial capacity after 650 cycles at 1C, and the LiCoO2‖Li cell maintains 84.9% of its initial capacity after 160 cycles, demonstrating promising high-voltage performance. This facile modification strategy can effectively improve compatibility issues between the polymer and fillers, which paves the way for the mass production of solid-state electrolytes.
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Affiliation(s)
- Bin Luo
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
| | - Jintian Wu
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
- School of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
| | - Ming Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
| | - Zhihao Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
| | - Xingwei Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
| | - Zixuan Fang
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
| | - Ziqiang Xu
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
- Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China Huzhou 313001 Zhejiang China
| | - Mengqiang Wu
- School of Materials and Energy, University of Electronic Science and Technology of China Chengdu 611731 Sichuan China
- Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China Huzhou 313001 Zhejiang China
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7
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Yan H, Wang WW, Wu TR, Gu Y, Li KX, Wu DY, Zheng M, Dong Q, Yan J, Mao BW. Morphology-Dictated Mechanism of Efficient Reaction Sites for Li 2O 2 Decomposition. J Am Chem Soc 2023. [PMID: 37216562 DOI: 10.1021/jacs.2c12267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In the pursuit of a highly reversible lithium-oxygen (Li-O2) battery, control of reaction sites to maintain stable conversion between O2 and Li2O2 at the cathode side is imperatively desirable. However, the mechanism involving the reaction site during charging remains elusive, which, in turn, imposes challenges in recognition of the origin of overpotential. Herein, via combined investigations by in situ atomic force microscopy (AFM) and electrochemical impedance spectroscopy (EIS), we propose a universal morphology-dictated mechanism of efficient reaction sites for Li2O2 decomposition. It is found that Li2O2 deposits with different morphologies share similar localized conductivities, much higher than that reported for bulk Li2O2, enabling the reaction site not only at the electrode/Li2O2/electrolyte interface but also at the Li2O2/electrolyte interface. However, while the mass transport process is more enhanced at the former, the charge-transfer resistance at the latter is sensitively related to the surface structure and thus the reactivity of the Li2O2 deposit. Consequently, for compact disk-like deposits, the electrode/Li2O2/electrolyte interface serves as the dominant decomposition site, which causes premature departure of Li2O2 and loss of reversibility; on the contrary, for porous flower-like and film-like Li2O2 deposits bearing a larger surface area and richer surface-active structures, both the interfaces are efficient for decomposition without premature departure of the deposit so that the overpotential arises primarily from the sluggish oxidation kinetics and the decomposition is more reversible. The present work provides instructive insights into the understanding of the mechanism of reaction sites during the charge process, which offers guidance for the design of reversible Li-O2 batteries.
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Affiliation(s)
- Hao Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wei-Wei Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tai-Rui Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yu Gu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Kai-Xuan Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - MingSen Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Quanfeng Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bing-Wei Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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8
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Zou J, Liang G, Zhang F, Zhang S, Davey K, Guo Z. Revisiting the Role of Discharge Products in Li-CO 2 Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2210671. [PMID: 37171977 DOI: 10.1002/adma.202210671] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/27/2023] [Indexed: 05/14/2023]
Abstract
Rechargeable lithium-carbon dioxide (Li-CO2 ) batteries are promising devices for CO2 recycling and energy storage. However, thermodynamically stable and electrically insulating discharge products (DPs) (e.g., Li2 CO3 ) deposited at cathodes require rigorous conditions for completed decomposition, resulting in large recharge polarization and poor battery reversibility. Although progress has been achieved in cathode design and electrolyte optimization, the significance of DPs is generally underestimated. Therefore, it is necessary to revisit the role of DPs in Li-CO2 batteries to boost overall battery performance. Here, a critical and systematic review of DPs in Li-CO2 batteries is reported for the first time. Fundamentals of reactions for formation and decomposition of DPs are appraised; impacts on battery performance including overpotential, capacity, and stability are demonstrated; and the necessity of discharge product management is highlighted. Practical in situ/operando technologies are assessed to characterize reaction intermediates and the corresponding DPs for mechanism investigation. Additionally, achievable control measures to boost the decomposition of DPs are evidenced to provide battery design principles and improve the battery performance. Findings from this work will deepen the understanding of electrochemistry of Li-CO2 batteries and promote practical applications.
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Affiliation(s)
- Jinshuo Zou
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Gemeng Liang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Fangli Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Shilin Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Kenneth Davey
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Zaiping Guo
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
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9
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Liu T, Zhao S, Xiong Q, Yu J, Wang J, Huang G, Ni M, Zhang X. Reversible Discharge Products in Li-Air Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208925. [PMID: 36502282 DOI: 10.1002/adma.202208925] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/06/2022] [Indexed: 05/19/2023]
Abstract
Lithium-air (Li-air) batteries stand out among the post-Li-ion batteries due to their high energy density, which has rapidly progressed in the past years. Regarding the fundamental mechanism of Li-air batteries that discharge products produced and decomposed during charging and recharging progress, the reversibility of products closely affects the battery performance. Along with the upsurge of the mainstream discharge products lithium peroxide, with devoted efforts to screening electrolytes, constructing high-efficiency cathodes, and optimizing anodes, much progress is made in the fundamental understanding and performance. However, the limited advancement is insufficient. In this case, the investigations of other discharge products, including lithium hydroxide, lithium superoxide, lithium oxide, and lithium carbonate, emerge and bring breakthroughs for the Li-air battery technologies. To deepen the understanding of the electrochemical reactions and conversions of discharge products in the battery, recent advances in the various discharge products, mainly focusing on the growth and decomposition mechanisms and the determining factors are systematically reviewed. The perspectives for Li-air batteries on the fundamental development of discharge products and future applications are also provided.
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Affiliation(s)
- Tong Liu
- Building Energy Research Group, Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, 518057, P. R. China
| | - Siyuan Zhao
- Building Energy Research Group, Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Qi Xiong
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Jie Yu
- Building Energy Research Group, Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Jian Wang
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Gang Huang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Meng Ni
- Building Energy Research Group, Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Xinbo Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
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Wu J, Weng S, Zhang X, Sun W, Wu W, Wang Q, Yu X, Chen L, Wang Z, Wang X. In Situ Detecting Thermal Stability of Solid Electrolyte Interphase (SEI). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2208239. [PMID: 36929531 DOI: 10.1002/smll.202208239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Solid electrolyte interphase (SEI) plays an important role in regulating the interfacial ion transfer and safety of Lithium-ion batteries (LIBs). It is unstable and readily decomposed releasing much heat and gases and thus triggering thermal runaway. Herein, in situ heating X-ray photoelectron spectroscopy is applied to uncover the inherent thermal decomposition process of the SEI. The evolution of the composition, nanostructure, and the released gases are further probed by cryogenic transmission electron microscopy, and gas chromatography. The results show that the organic components of SEI are readily decomposed even at room temperature, releasing some flammable gases (e.g., H2 , CO, C2 H4 , etc.). The residual SEI after heat treatment is rich in inorganic components (e.g., Li2 O, LiF, and Li2 CO3 ), provides a nanostructure model for a beneficial SEI with enhanced stability. This work deepens the understanding of SEI intrinsic thermal stability, reveals its underlying relationship with the thermal runaway of LIBs, and enlightens to enhance the safety of LIBs by achieving inorganics-rich SEI.
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Affiliation(s)
- Jipeng Wu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Suting Weng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenwu Sun
- Thermo Fisher Scientific (China) Co. Ltd. , Xinjinqiao Road, Shanghai, 201206, China
| | - Wei Wu
- Thermo Fisher Scientific (China) Co. Ltd. , Xinjinqiao Road, Shanghai, 201206, China
| | - Qiyu Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiqian Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liquan Chen
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaoxiang Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuefeng Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
- Tianmu Lake Institute of Advanced Energy Storage Technologies Co. Ltd., Liyang, Jiangsu, 213300, China
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11
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Lian Z, Lu Y, Zhao S, Li Z, Liu Q. Engineering the Electronic Interaction between Atomically Dispersed Fe and RuO 2 Attaining High Catalytic Activity and Durability Catalyst for Li-O 2 Battery. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205975. [PMID: 36683253 PMCID: PMC10037969 DOI: 10.1002/advs.202205975] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/22/2022] [Indexed: 06/17/2023]
Abstract
It is significant to develop catalysts with high catalytic activity and durability to improve the electrochemical performances of lithium-oxygen batteries (LOBs). While electronic metal-support interaction (EMSI) between metal atoms and support has shown great potential in catalytic field. Hence, to effectively improve the electrochemical performance of LOBs, atomically dispersed Fe modified RuO2 nanoparticles are designed to be loaded on hierarchical porous carbon shells (FeSA -RuO2 /HPCS) based on EMSI criterion. It is revealed that the Ru-O-Fe1 structure is formed between the atomically dispersed Fe atoms and the surrounding Ru sites through electron interaction, and this structure could act as the ultra-high activity driving force center of oxygen reduction/evolution reaction (ORR/OER). Specifically, the Ru-O-Fe1 structure enhances the reaction kinetics of ORR to a certain extent, and optimizes the morphology of discharge products by reducing the adsorption energy of catalyst for O2 and LiO2 ; while during the OER process, the Ru-O-Fe1 structure not only greatly enhances the reaction kinetics of OER, but also catalyzes the efficient decomposition of the discharge products Li2 O2 by the favorable electron transfer between the active sites and the discharge products. Hence, LOBs based on FeSA-RuO2 /HPCS cathodes show an ultra-low over-potential, high discharge capacity and superior durability.
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Affiliation(s)
- Zheng Lian
- Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou450001P. R. China
- State Key Laboratory of Pulp and Paper EngineeringSouth China University of TechnologyGuangzhou510641P. R. China
| | - Youcai Lu
- Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou450001P. R. China
| | - Shaoze Zhao
- Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou450001P. R. China
| | - Zhongjun Li
- Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou450001P. R. China
| | - Qingchao Liu
- Green Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou450001P. R. China
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Liu X, Xing Y, Xu K, Zhang H, Gong M, Jia Q, Zhang S, Lei W. Kinetically Accelerated Lithium Storage in High-Entropy (LiMgCoNiCuZn)O Enabled By Oxygen Vacancies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200524. [PMID: 35362260 DOI: 10.1002/smll.202200524] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/16/2022] [Indexed: 06/14/2023]
Abstract
High-entropy oxides (HEOs) are gradually becoming a new focus for lithium-ion battery (LIB) anodes due to their vast element space/adjustable electrochemical properties and unique single-phase retention ability. However, the sluggish kinetics upon long cycling limits their further generalization. Here, oxygen vacancies with targeted functionality are introduced into rock salt-type (MgCoNiCuZn)O through a wet-chemical molten salt strategy to accelerate the ion/electron transmission. Both experimental results and theoretical calculations reveal the potential improvement of lithium storage, charge transfer, and diffusion kinetics from HEO surface defects, which ultimately leads to enhanced electrochemical properties. The currently raised strategy offers a modular approach and enlightening insights for defect-induced HEO-based anodes.
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Affiliation(s)
- Xuefeng Liu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yingying Xing
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Ke Xu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Haijun Zhang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Mingxing Gong
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430078, China
| | - Quanli Jia
- Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University, Zhengzhou, 450052, China
| | - Shaowei Zhang
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, UK
| | - Wen Lei
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China
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