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Su Z, Guo Z, Xie H, Qu M, Peng G, Wang H. In Situ Surface Reaction for the Preparation of High-Performance Li-Rich Mn-Based Cathode Materials with Integrated Surface Functionalization. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39447-39459. [PMID: 39016610 DOI: 10.1021/acsami.4c08440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Li-rich Mn-based cathode materials (LLOs) are often faced with problems such as low initial Coulombic efficiency (ICE), limited rate performance, voltage decay, and structural instability. Addressing these problems with a single approach is challenging. To overcome these limitations, we developed an LLO with surface functionalization using a simple fabrication method. This two-step process involved a liquid-stage NaBF4 treatment followed by an in situ chemical reaction during sintering. This reaction led to the creation of oxygen vacancies (OV), spinel structures, and doping with Na at the Li site, B at the tetrahedral interstitial spaces of O in both the transition-metal (TM) layer and Li layers as well as the octahedral interstices in the TM layer, and F at the O site. We have carried out a thorough study and employed density functional theory calculations to reveal the hidden mechanisms. The treatment not only increases the electrical conductivity but also changes the oxygen charge environment and inhibits lattice oxygen activity. Surprisingly, the B-O bond is so strong that it prevents the migration of TM within the tetrahedral interstitial spaces of O in both the TM and Li layers, hence stabilizing its structure. This bonding interaction strengthens the transition of the TM 3d and O 2p states to lower energy levels, thus causing an increase in the redox potentials. Hence, a rise in the operating voltage occurs. Of special importance, this therapy dramatically increases the ICE to 90.29% and keeps a specified capacity of 203.3 mAh/g after 100 cycles at 1C, which is an excellent capacity retention of 89.94%. This study introduces ideas and methods to tackle the challenges associated with LLOs in batteries. It also provides compelling evidence for the development of high-energy-density Li-ion batteries.
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Affiliation(s)
- Zihao Su
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Zhihao Guo
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Haoyu Xie
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Meizhen Qu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
| | - Gongchang Peng
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
| | - Hao Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, P. R. China
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Cong G, Huang L, Yang G, Song J, Liu S, Huang Y, Zhang X, Liu Z, Geng L. Ni/Mg Dual Concentration-Gradient Surface Modification to Enhance Structural Stability and Electrochemical Performance of Li-Rich Layered Oxides. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9999-10008. [PMID: 38361262 DOI: 10.1021/acsami.3c15115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Li-rich layered oxides (LRLOs), with the advantages of high specific capacity and low cost, are considered as candidates for the next-generation cathode of lithium-ion batteries (LIBs). Unfortunately, sluggish kinetics and interfacial degradation lead to capacity loss and voltage decay of the material during cycling. To address these issues, we propose a Ni/Mg dual concentration-gradient modification strategy for LRLOs. From the center to the surface of the modified materials, the contents of Ni and Mg are gradually increased while the content of Mn is decreased. The high Ni content on the surface increases the proportion of cationic redox, elevating the operating voltage and accelerating reaction kinetics. Moreover, the doped Mg on the surface of the material acting as a stabilizing pillar suppresses the migration of transition metals, stabilizing the layered structure. Therefore, the material with the Ni/Mg dual concentration-gradients delivers a superior electrochemical performance, exhibiting a suppressed voltage decay of 2.8 mV per cycle during 200 cycles (1 C, 2-4.8 V) and an excellent rate capability of 94.84 mAh/g at 7C. This study demonstrates a synergic design to construct high-performance LRLO cathode materials for LIBs.
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Affiliation(s)
- Guanghui Cong
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Lujun Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Guobo Yang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Jinpeng Song
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Shaoshuai Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Yating Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Xin Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Zheyuan Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Lin Geng
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
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Tesfamhret Y, Liu H, Berg EJ, Younesi R. The role of ethylene carbonate (EC) and tetramethylene sulfone (SL) in the dissolution of transition metals from lithium-ion cathodes. RSC Adv 2023; 13:20520-20529. [PMID: 37435367 PMCID: PMC10331795 DOI: 10.1039/d3ra02535g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/09/2023] [Indexed: 07/13/2023] Open
Abstract
Transition metal (TM) dissolution is a direct consequence of cathode-electrolyte interaction, having implications not only for the loss of redox-active material from the cathode but also for the alteration of solid electrolyte interphase (SEI) composition and stability at the counter electrode. It has widely been reported that the limited anodic stability of typical carbonate-based electrolytes, specifically ethylene carbonate (EC)-based electrolytes, makes high-voltage cathode performance problematic. Hence, the more anodically stable tetramethylene sulfone (SL) has herein been utilized as a co-solvent and a substitute for EC in combination with diethyl carbonate (DEC) to investigate the TM dissolution behavior of LiN0.8C0.17Al0.03 (NCA) and LiMn2O4 (LMO). EC|DEC and SL|DEC solvents in combination with either LiPF6 or LiBOB salts have been evaluated, with LFP as a counter electrode to eliminate the influence of low potential anodes. Oxidative degradation of EC is shown to propagate HF generation, which is conversely reflected by an increased TM dissolution. Therefore, TM dissolution is accelerated by the acidification of the electrolyte. Although replacing EC with the anodically stable SL reduces HF generation and effectively mitigates TM dissolution, SL containing electrolytes are demonstrated to be less capable of supporting Li-ion transport and thus show lower cycling stability.
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Affiliation(s)
- Yonas Tesfamhret
- Department of Chemistry, Ångström Laboratory, Uppsala University Box 538 SE-75121 Uppsala Sweden
| | - Haidong Liu
- Department of Chemistry, Ångström Laboratory, Uppsala University Box 538 SE-75121 Uppsala Sweden
| | - Erik J Berg
- Department of Chemistry, Ångström Laboratory, Uppsala University Box 538 SE-75121 Uppsala Sweden
| | - Reza Younesi
- Department of Chemistry, Ångström Laboratory, Uppsala University Box 538 SE-75121 Uppsala Sweden
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Zhang Y, Song Y, Liu L, Ma J, Liu J. A novel perspective on surface modification of LiNi0.5Co0.2Mn0.3O2 cathode materialfor lithium‐ion batteries. ChemElectroChem 2022. [DOI: 10.1002/celc.202200814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yang Zhang
- Nanjing University of Science and Technology Chemistry and Chemical Engineering CHINA
| | - Ye Song
- Nanjing University of Science and Technology Chemistry and Chemical Engineering CHINA
| | - Lin Liu
- Jiangsu Ocean University School of Environmental and Chemical Engineering CHINA
| | - Juanjuan Ma
- Jiangsu Ocean University School of Environmental and Chemical Engineering CHINA
| | - Jie Liu
- Nanjing University of Science and Technology School of chemistry and chemical engineering No. 200, Xiaolingwei Road. 210094 Nanjing CHINA
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Chang Z, Zhang Y, He W, Wang J, Zheng H, Qu B, Wang X, Xie Q, Peng DL. Surface Spinel-Coated and Polyanion-Doped Co-Free Li-Rich Layered Oxide Cathode for High-Performance Lithium-Ion Batteries. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhanying Chang
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yiming Zhang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Wei He
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Jin Wang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Hongfei Zheng
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Baihua Qu
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, People’s Republic of China
- Shenzhen Research Institute of Xiamen University, Shenzhen, 518000, People’s Republic of China
| | - Xinghui Wang
- College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou 350108, People’s Republic of China
| | - Qingshui Xie
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
- Shenzhen Research Institute of Xiamen University, Shenzhen, 518000, People’s Republic of China
| | - Dong-Liang Peng
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
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Ariyoshi K, Inoue T, Yamada Y. Voltage decay for lithium-excess material of Li[Li1/5Co2/5Mn2/5]O2 during cycling analyzed via backstitch method. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05184-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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He Z, Li J, Luo Z, Zhou Z, Jiang X, Zheng J, Li Y, Mao J, Dai K, Yan C, Sun Z. Enhancing Cell Performance of Lithium-Rich Manganese-Based Materials via Tailoring Crystalline States of a Coating Layer. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49390-49401. [PMID: 34609832 DOI: 10.1021/acsami.1c11180] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Li-rich Mn-based-layered oxides are considered to be the most felicitous cathode material candidates for commercial application of lithium-ion batteries on account of high energy density. Nevertheless, defects containing an unsatisfactory initial Coulombic efficiency and rapid voltage decay seriously impede their practical utilization. Herein, a coating layer with three distinct crystalline states are employed as a coating layer to modify Li[Li0.2Mn0.54Ni0.13Co0.13]O2, respectively, and the effects of coating layers with distinct crystalline states on the crystal structure, diffusion kinetics, and cell performance of host materials are further explored. A coating layer with high crystallinity enables mitigatory voltage decay and better cyclic stability of materials, while a coating layer with planar defects facilitates Li+ transfer and enhances the rate performance of materials. Consequently, optimizing the crystalline state of coating substances is critical for preferable surface modification.
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Affiliation(s)
- Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Jingyi Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Ziyan Luo
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Zhiwei Zhou
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Xiangkang Jiang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Junchao Zheng
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Yunjiao Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
| | - Jing Mao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Kehua Dai
- College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Cheng Yan
- School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Zhaoming Sun
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China
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Hu ZG, Tan ZY, Sun F, Lin Z, Chen J, Tang XY, Luo J, Sun L, Zheng RT, Chen YC, Cheng GA. The high cycling performance of ultra-thin Si nanowires fabricated by metal-assisted chemical etching method as lithium-ion batteries anode. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Konishi H, Hirano T, Takamatsu D, Okumura T. Electrochemical reaction mechanism of two components in xLi2MnO3–(1–x)LiNi0.5Mn0.5O2 and effect of x on the electrochemical performance in lithium ion battery. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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