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Piao N, Wang J, Gao X, Li R, Zhang H, Hu G, Sun Z, Fan X, Cheng HM, Li F. Designing Temperature-Insensitive Solvated Electrolytes for Low-Temperature Lithium Metal Batteries. J Am Chem Soc 2024. [PMID: 38816747 DOI: 10.1021/jacs.4c01735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Lithium metal batteries face problems from sluggish charge transfer at interfaces, as well as parasitic reactions between lithium metal anodes and electrolytes, due to the strong electronegativity of oxygen donor solvents. These factors constrain the reversibility and kinetics of lithium metal batteries at low temperatures. Here, a nonsolvating cosolvent is applied to weaken the electronegativity of donor oxygen in ether solvents, enabling the participation of anionic donors in the solvation structure of Li+. This strategy significantly accelerates the desolvation process of Li+ and reduces the side effects of solvents on interfacial transport and stability. The designed anion-aggregated electrolyte has a unique temperature-insensitive solvation structure and enables lithium metal anodes to achieve a high average Coulombic efficiency at room temperature and -20 °C. A high-loading LiFePO4||Li cell exhibited high reversibility with a 100% capacity retention after 150 cycles at room temperature, -20, and -40 °C. The practical 1 Ah-level LiFePO4||Li pouch-cell delivered 81% and 61% of the capacity at room temperature when charged and discharged at -20 and -40 °C, respectively. This strategy of constructing temperature-insensitive solvation by electronegativity regulation offers a novel approach for developing electrolytes of low-temperature batteries.
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Affiliation(s)
- Nan Piao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jinze Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
| | - Xuning Gao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Ruhong Li
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
| | - Haikuo Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guangjian Hu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhenhua Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiulin Fan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hui-Ming Cheng
- Shenzhen Key Lab of Energy Materials for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Boulevard, Shenzhen 518055, China
- Faculty of Materials Science and Energy Engineering, Shenzhen University of Advanced Technology, 291 Louming Road, Shenzhen 518107, China
| | - Feng Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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2
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Li Z, Wang L, Huang X, He X. Unveiling the Mystery of LiF within Solid Electrolyte Interphase in Lithium Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305429. [PMID: 38098303 DOI: 10.1002/smll.202305429] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/04/2023] [Indexed: 05/30/2024]
Abstract
Over the past decades, significant advances have been made in lithium-ion batteries. However, further requirement on the electrochemical performance is still a powerful motivator to improve battery technology. The solid electrolyte interphase (SEI) is considered as a key component on negative electrode, having been proven to be crucial for the performance, even in safety of batteries. Although numerous studies have focused on SEI in recent years, its specific properties, including structure and composition, remain largely unclear. Particularly, LiF, a common and important component in SEI, has sparked debates among researchers, resulting in divergent viewpoints. In this review, the recent research findings on SEI and delve into the characteristics of the LiF component is aim to consolidated. The cause of SEI formation and the evolution of SEI models is summarized. The distinctive properties of SEI generated on various negative electrodes is further discussed, the ongoing scholarly controversy surrounding the function of LiF within SEI, and the specific physicochemical properties about LiF and its synergistic effect in heterogeneous components. The objective is to facilitate better understanding of SEI and the role of the LiF component, ultimately contributing to the development of Li batteries with enhanced electrochemical performance and safety for battery communities.
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Affiliation(s)
- Zhen Li
- Key Laboratory of MEMS of the Ministry of Education, School of Integrated Circuits, Southeast University, Nanjing, 210096, P. R. China
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Li Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiaodong Huang
- Key Laboratory of MEMS of the Ministry of Education, School of Integrated Circuits, Southeast University, Nanjing, 210096, P. R. China
| | - Xiangming He
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, P. R. China
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3
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Ma L, Jiang YK, Xu DR, Fang YY, Li N, Cao DY, Chen L, Lu Y, Huang Q, Su YF, Wu F. Enabling Stable and Low-Strain Lithium Plating/Stripping with 2D Layered Transition Metal Carbides by Forming Li-Zipped MXenes and a Li Halide-Rich Solid Electrolyte Interphase. Angew Chem Int Ed Engl 2024; 63:e202318721. [PMID: 38294414 DOI: 10.1002/anie.202318721] [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: 12/06/2023] [Revised: 01/18/2024] [Accepted: 01/29/2024] [Indexed: 02/01/2024]
Abstract
Two-dimensional (2D) layered materials demonstrate prominent advantage in regulating lithium plating/stripping behavior by confining lithium diffusion/plating within interlayer gaps. However, achieving effective interlayer confined lithium diffusion/plating without compromising the stability of bulk-structural and the solid electrolyte interphase (SEI) remains a considerable challenge. This paper presents an electrochemical scissor and lithium zipper-driven protocol for realizing interlayer confined lithium plating with pretty-low strain and volume change. In this protocol, lithium serves as a "zipper" to reunite the adjacent MXene back to MAX-like phase to markedly enhance the structural stability, and a lithium halide-rich SEI is formed by electrochemically removing the terminals of halogenated MXenes to maintain the stability and rapid lithium ions diffusion of SEI. When the Ti3 C2 I2 serves as the host for lithium plating, the average coulomb efficiency exceeds 97.0 % after 320 lithium plating/stripping cycles in conventional ester electrolyte. Furthermore, a full cell comprising of LiNi0.8 Mn0.1 Co0.1 O2 and Ti3 C2 I2 @Li exhibits a capacity retention rate of 73.4 % after 200 cycles even under high cathode mass-loading (20 mg cm-2 ) and a low negative/positive capacity ratio of 1.4. Our findings advance the understanding of interlayer confined lithium plating in 2D layered materials and provide a new direction in regulating lithium and other metal plating/stripping behaviors.
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Affiliation(s)
- Liang Ma
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Yong-Kang Jiang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Dong-Rui Xu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - You-You Fang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Ning Li
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Duan-Yun Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Lai Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Yun Lu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Qing Huang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Yue-Feng Su
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
| | - Feng Wu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Innovation Center, Beijing Institute of Technology, Chongqing, 401120, P. R. China
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4
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Jian Hu X, Ping Zheng Y, Wei Li Z, Xia C, Chua DHC, Hu X, Liu T, Bin Liu X, Ping Wu Z, Yu Xia B. Artificial LiF-Rich Interface Enabled by In situ Electrochemical Fluorination for Stable Lithium-Metal Batteries. Angew Chem Int Ed Engl 2024; 63:e202319600. [PMID: 38286751 DOI: 10.1002/anie.202319600] [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: 12/18/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 01/31/2024]
Abstract
Lithium (Li)-metal batteries are promising next-generation energy storage systems. One drawback of uncontrollable electrolyte degradation is the ability to form a fragile and nonuniform solid electrolyte interface (SEI). In this study, we propose the use of a fluorinated carbon nanotube (CNT) macrofilm (CMF) on Li metal as a hybrid anode, which can regulate the redox state at the anode/electrolyte interface. Due to the favorable reaction energy between the plated Li and fluorinated CNTs, the metal can be fluorinated directly to a LiF-rich SEI during the charging process, leading to a high Young's modulus (~2.0 GPa) and fast ionic transfer (~2.59×10-7 S cm-1 ). The obtained SEI can guide the homogeneous plating/stripping of Li during electrochemical processes while suppressing dendrite growth. In particular, the hybrid of endowed full cells with substantially enhanced cyclability allows for high capacity retention (~99.3 %) and remarkable rate capacity. This work can extend fluorination technology into a platform to control artificial SEI formation in Li-metal batteries, increasing the stability and long-term performance of the resulting material.
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Affiliation(s)
- Xun Jian Hu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Yi Ping Zheng
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Zhi Wei Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Chenfeng Xia
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Wuhan National Laboratory for Optoelectronics, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
| | - Daniel H C Chua
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive 1, Singapore, 117575, Singapore
| | - Xin Hu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Ting Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Xian Bin Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
| | - Zi Ping Wu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology (JXUST), 86 Hongqi Road, Ganzhou, 341000, China
- Department of Materials Science and Engineering, National University of Singapore (NUS), 9 Engineering Drive 1, Singapore, 117575, Singapore
| | - Bao Yu Xia
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Wuhan National Laboratory for Optoelectronics, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, China
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5
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Liu Y, Lin Y, Yang Z, Lin C, Zhang X, Chen S, Hu G, Sa B, Chen Y, Zhang Y. Stable Harsh-Temperature Lithium Metal Batteries Enabled by Tailoring Solvation Structure in Ether Electrolytes. ACS NANO 2023; 17:19625-19639. [PMID: 37819135 DOI: 10.1021/acsnano.3c01895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
For lithium metal batteries (LMBs), the elevated operating temperature results in severe capacity fading and safety issues due to unstable electrode-electrolyte interphases and electrolyte solvation structures. Therefore, it is crucial to construct advanced electrolytes capable of tolerating harsh environments to ensure stable LMBs. Here, we proposed a stable localized high-concentration electrolyte (LHCE) by introducing the highly solvating power solvent diethylene glycol dimethyl ether (DGDME). Computational and experimental evidence discloses that the original DGDME-LHCE shows favorable features for high-temperature LMBs, including high Li+-binding stability, electro-oxidation resistance, thermal stability, and nonflammability. The tailored solvated sheath structure achieves the preferred decomposition of anions, inducing the stable (cathode and Li anode)/interphases simultaneously, which enables a homogeneous Li plating-stripping behavior on the anode side and a high-voltage tolerance on the cathode side. For the Li||Li cells coupled with DGDME-LHCE, they showcase outstanding reversibility (a long lifespan of exceeding 1900 h). We demonstrate exceptional cyclic stability (∼95.59%, 250 cycles), high Coulombic efficiency (>99.88%), and impressive high-voltage (4.5 V) and high-temperature (60 °C) performances in Li||NCM523 cells using DGDME-LHCE. Our advances shed light on an encouraging ether electrolyte tactic for the Li-metal batteries confronted with stringent high-temperature challenges.
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Affiliation(s)
- Yongchuan Liu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
| | - Yuansheng Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Zhanlin Yang
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Changxin Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xiangxin Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
| | - Sujing Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
| | - Guolin Hu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Baisheng Sa
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Yuanqiang Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
| | - Yining Zhang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China
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6
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Yu X, Jiang Z, Yuan R, Song H. A Review of the Relationship between Gel Polymer Electrolytes and Solid Electrolyte Interfaces in Lithium Metal Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111789. [PMID: 37299691 DOI: 10.3390/nano13111789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023]
Abstract
Lithium metal batteries (LMBs) are a dazzling star in electrochemical energy storage thanks to their high energy density and low redox potential. However, LMBs have a deadly lithium dendrite problem. Among the various methods for inhibiting lithium dendrites, gel polymer electrolytes (GPEs) possess the advantages of good interfacial compatibility, similar ionic conductivity to liquid electrolytes, and better interfacial tension. In recent years, there have been many reviews of GPEs, but few papers discussed the relationship between GPEs and solid electrolyte interfaces (SEIs). In this review, the mechanisms and advantages of GPEs in inhibiting lithium dendrites are first reviewed. Then, the relationship between GPEs and SEIs is examined. In addition, the effects of GPE preparation methods, plasticizer selections, polymer substrates, and additives on the SEI layer are summarized. Finally, the challenges of using GPEs and SEIs in dendrite suppression are listed and a perspective on GPEs and SEIs is considered.
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Affiliation(s)
- Xiaoqi Yu
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zipeng Jiang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Renlu Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huaihe Song
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
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7
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Quan Y, Wu S, Yang K, Hu L, Zhang X, Hu X, Liang H, Li S. Improving performances of the electrode/electrolyte interface via the regulation of solvation complexes: a review and prospect. NANOSCALE 2023; 15:4772-4780. [PMID: 36779505 DOI: 10.1039/d2nr07273d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The electrode/electrolyte interface (EEI) is a research hotspot in lithium-ion batteries, while the electrolyte solvation complex can be regarded as a factor that cannot be ignored in determining the performance of the EEI. From the perspective of the electrolyte solvation complex, this review summarizes the effects of solvation complexes on the composition of an EEI film and the Li+ desolvation process, and further clarifies the internal mechanism of the electrolyte composition controlling solvation chemistry. Finally, combined with doubtful points that are not comprehensively considered in the regulation of solvated complexes, this review puts forward some cutting-edge views, which are of great significance for future guidance in improving the performance of lithium-ion batteries.
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Affiliation(s)
- Yin Quan
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Shumin Wu
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Kerong Yang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Ling Hu
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Xiaojuan Zhang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Xinyi Hu
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Hongcheng Liang
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
| | - Shiyou Li
- School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, P.R. China.
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou 730050, P.R. China
- Engineering Laboratory of Electrolyte Material for Lithium- ion Battery of Gansu Province, Baiyin, 730900, P. R. China
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8
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Hu Y, Guo F, Zhu C, Qiu L, Zhou J, Deng Y, Zheng Z, Liu Y, Sun Y, Zhong B, Song Y, Guo X. Effective and Low-Cost In Situ Surface Engineering Strategy to Enhance the Interface Stability of an Ultrahigh Ni-Rich NCMA Cathode. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51835-51845. [PMID: 36346927 DOI: 10.1021/acsami.2c12889] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Ultrahigh Ni-rich quaternary layered oxides LiNi1-x-y-zCoxMnyAlzO2 (1 - x - y - z ≥ 0.9) are regarded as some of the most promising cathode candidates for lithium-ion batteries (LIBs) because of their high energy density and low cost. However, poor rate capacity and cycling performance severely limit their further commercial applications. Herein, an in situ coating strategy is developed to construct a uniform LiAlO2 layer. The NH4HCO3 solution is added to a NaAlO2 solution to form a weak alkaline condition, which can reduce the hydrolysis rate of NaAlO2, thus enabling uniform deposition of Al(OH)3 on the surface of a Ni0.9Co0.07Mn0.01Al0.02(OH)2 (NCMA) precursor. The LiAlO2-coated samples show enhanced cycling stability and rate capacity. The capacity retention of NCMA increases from 70.7% to 88.3% after 100 cycles at 1 C with an optimized LiAlO2 coating amount of 3 wt %. Moreover, the 3 wt % LiAlO2-coated sample also delivers a better rate capacity of 162 mAh g-1 at 5 C, while that of an uncoated sample is only 144 mAh g-1. Such a large improvement of the electrochemical performance should be attributed to the fact that a uniform LiAlO2 coating relieves harmful interfacial parasitic reactions and stabilizes the interface structure. Therefore, this in situ coating approach is a viable idea for the design of higher-energy-density cathode materials.
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Affiliation(s)
- Yang Hu
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Fuqiren Guo
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Chaoqiong Zhu
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Lang Qiu
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Junbo Zhou
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Yuting Deng
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Zhuo Zheng
- The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu610065, P. R. China
| | - Yang Liu
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan453007, P. R. China
| | - Yan Sun
- School of Mechanical Engineering, Chengdu University, Chengdu610106, P. R. China
| | - Benhe Zhong
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Yang Song
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
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