1
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Zhao W, Tian P, Gao T, Wang W, Mu C, Pang H, Ye J, Ning G. Different-grain-sized boehmite nanoparticles for stable all-solid-state lithium metal batteries. NANOSCALE 2024; 16:11163-11173. [PMID: 38758041 DOI: 10.1039/d4nr01025f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
PEO is one of the common composite polymer electrolyte vehicles; however, the presence of crystalline phase at room temperature, high interface impedance, and low oxidation resistance (<4.0 V) limit its application in stable all-solid-state lithium metal batteries. Herein, we designed a PEO-based solid polymer electrolyte (SPE) by adding boehmite nanoparticles to address the above-mentioned issues. Different-grain-sized boehmite nanoparticles were synthesized by adjusting the hydrothermal temperature. Moreover, the impacts of these distinct grain-sized boehmite nanoparticles used to fabricate boehmite/PEO polymer electrolytes (BPEs) on the performance of all-solid-state lithium metal batteries were investigated. It was found that with the increase in boehmite's grain size, BPEs show better performance. The best BPE exhibited an improved Li+ transference number (0.59), high ionic conductivity (1.25 × 10-4 S m-1), and wide electrochemical window (∼4.5 V) at 60 °C. The assembled lithium symmetric battery can stably undergo 500 hours of lithium plating/stripping at 0.1 mA cm-2. At the same time, the LiFePO4/BPE/Li battery exhibits excellent cycling stability after 100 cycles at 0.5C. This reasonable design strategy with a superior capacity retention rate (86%) demonstrates great potential in achieving high ionic conductivity and good interface stability for all-solid-state lithium metal batteries simultaneously.
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Affiliation(s)
- Weiran Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Peng Tian
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Tingting Gao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Wu Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Chenxi Mu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Hongchang Pang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Junwei Ye
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
| | - Guiling Ning
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, PR China.
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2
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Rudolf K, Voigt L, Muench S, Frankenstein L, Landsmann J, Schubert US, Winter M, Placke T, Kasnatscheew J. Radical Polymer-based Positive Electrodes for Dual-Ion Batteries: Enhancing Performance with γ-Butyrolactone-based Electrolytes. CHEMSUSCHEM 2024:e202400626. [PMID: 38747027 DOI: 10.1002/cssc.202400626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/30/2024] [Indexed: 06/19/2024]
Abstract
Dual-ion batteries (DIBs) represent a promising alternative for lithium ion batteries (LIBs) for various niche applications. DIBs with polymer-based active materials, here poly(2,2,6,6-tetramethylpiperidinyl-N-oxyl methacrylate) (PTMA), are of particular interest for high power applications, though they require appropriate electrolyte formulations. As the anion mobility plays a crucial role in transport kinetics, Li salts are varied using the well-dissociating solvent γ-butyrolactone (GBL). Lithium difluoro(oxalate)borate (LiDFOB) and lithium bis(oxalate)borate (LiBOB) improve cycle life in PTMA||Li metal cells compared to other Li salts and a LiPF6- and carbonate-based reference electrolyte, even at specific currents of 1.0 A g-1 (≈10C), whereas LiDFOB reveals a superior rate performance, i. e., ≈90 % capacity even at 5.0 A g-1 (≈50C). This is attributed to faster charge-transfer/mass transport, enhanced pseudo-capacitive contributions during the de-/insertion of the anions into the PTMA electrode and to lower overpotentials at the Li metal electrode.
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Affiliation(s)
- Katharina Rudolf
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
| | - Linus Voigt
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
| | - Simon Muench
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Lars Frankenstein
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
| | - Justin Landsmann
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Martin Winter
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
- Helmholtz-Institut Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
| | - Tobias Placke
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
| | - Johannes Kasnatscheew
- University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149, Münster, Germany
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3
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Roering P, Overhoff GM, Liu KL, Winter M, Brunklaus G. External Pressure in Polymer-Based Lithium Metal Batteries: An Often-Neglected Criterion When Evaluating Cycling Performance? ACS APPLIED MATERIALS & INTERFACES 2024; 16:21932-21942. [PMID: 38649156 PMCID: PMC11071043 DOI: 10.1021/acsami.4c02095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
Solid-state batteries based on lithium metal anodes, solid electrolytes, and composite cathodes constitute a promising battery concept for achieving high energy density. Charge carrier transport within the cells is governed by solid-solid contacts, emphasizing the importance of well-designed interfaces. A key parameter for enhancing the interfacial contacts among electrode active materials and electrolytes comprises externally applied pressure onto the cell stack, particularly in the case of ceramic electrolytes. Reports exploring the impact of external pressure on polymer-based cells are, however, scarce due to overall better wetting behavior. In this work, the consequences of externally applied pressure in view of key performance indicators, including cell longevity, rate capability, and limiting current density in single-layer pouch-type NMC622||Li cells, are evaluated employing cross-linked poly(ethylene oxide), xPEO, and cross-linked cyclodextrin grafted poly(caprolactone), xGCD-PCL. Notably, externally applied pressure substantially changes the cell's electrochemical cycling performance, strongly depending on the mechanical properties of the considered polymers. Higher external pressure potentially enhances electrode-electrolyte interfaces, thereby boosting the rate capability of pouch-type cells, despite the fact that the cell longevity may be reduced upon plastic deformation of the polymer electrolytes when passing beyond intrinsic thresholds of compressive stress. For the softer xGCD-PCL membrane, cycling of cells is only feasible in the absence of external pressure, whereas in the case of xPEO, a trade-off between enhanced rate capability and minimal membrane deformation is achieved at cell pressures of ≤0.43 MPa, which is considerably lower and more practical compared to cells employing ceramic electrolytes with ≥5 MPa external pressure.
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Affiliation(s)
- Philipp Roering
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
| | - Gerrit Michael Overhoff
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
| | - Kun Ling Liu
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
| | - Martin Winter
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
- MEET
Battery Research Center/Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Gunther Brunklaus
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
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4
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Daniels EL, Runge JR, Oshinowo M, Leese HS, Buchard A. Cross-Linking of Sugar-Derived Polyethers and Boronic Acids for Renewable, Self-Healing, and Single-Ion Conducting Organogel Polymer Electrolytes. ACS APPLIED ENERGY MATERIALS 2023; 6:2924-2935. [PMID: 36936513 PMCID: PMC10015429 DOI: 10.1021/acsaem.2c03937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/10/2023] [Indexed: 06/16/2023]
Abstract
This report describes the synthesis and characterization of organogels by reaction of a diol-containing polyether, derived from the sugar d-xylose, with 1,4-phenylenediboronic acid (PDBA). The cross-linked materials were analyzed by infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), scanning electron microscopy (FE-SEM), and rheology. The rheological material properties could be tuned: gel or viscoelastic behavior depended on the concentration of polymer, and mechanical stiffness increased with the amount of PDBA cross-linker. Organogels demonstrated self-healing capabilities and recovered their storage and loss moduli instantaneously after application and subsequent strain release. Lithiated organogels were synthesized through incorporation of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) into the cross-linked matrix. These lithium-borate polymer gels showed a high ionic conductivity value of up to 3.71 × 10-3 S cm-1 at 25 °C, high lithium transference numbers (t + = 0.88-0.92), and electrochemical stability (4.51 V). The gels were compatible with lithium-metal electrodes, showing stable polarization profiles in plating/stripping tests. This system provides a promising platform for the production of self-healing gel polymer electrolytes (GPEs) derived from renewable feedstocks for battery applications.
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Affiliation(s)
- Emma L. Daniels
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- Materials
for Health Lab, Department of Chemical Engineering, University of Bath, Claverton
Down, Bath BA2 7AY, U.K.
| | - James R. Runge
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Matthew Oshinowo
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Hannah S. Leese
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Materials
for Health Lab, Department of Chemical Engineering, University of Bath, Claverton
Down, Bath BA2 7AY, U.K.
| | - Antoine Buchard
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
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5
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Shan X, Zhao S, Ma M, Pan Y, Xiao Z, Li B, Sokolov AP, Tian M, Yang H, Cao PF. Single-Ion Conducting Polymeric Protective Interlayer for Stable Solid Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:56110-56119. [PMID: 36490324 DOI: 10.1021/acsami.2c17547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
With many reported attempts on fabricating single-ion conducting polymer electrolytes, they still suffer from low ionic conductivity, narrow voltage window, and high cost. Herein, we report an unprecedented approach on improving the cationic transport number (tLi+) of the polymer electrolyte, i.e., single-ion conducting polymeric protective interlayer (SIPPI), which is designed between the conventional polymer electrolyte (PVEC) and Li-metal electrode. Satisfied ionic conductivity (1 mS cm-1, 30 °C), high tLi+ (0.79), and wide-area voltage stability are realized by coupling the SIPPI with the PVEC electrolyte. Benefiting from this unique design, the Li symmetrical cell with the SIPPI shows stable cycling over 6000 h at 3 mA cm-2, and the full cell with the SIPPI exhibits stable cycling performance with a capacity retention of 86% over 1000 cycles at 1 C and 25 °C. This incorporated SIPPI on the Li anode presents an alternative strategy for enabling high-energy density, long cycling lifetime, and safe and cost-effective solid-state batteries.
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Affiliation(s)
- Xinyuan Shan
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Sheng Zhao
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Mengxiang Ma
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yiyang Pan
- School of Chemistry, Beihang University, Beijing 10019, China
| | - Zhenxue Xiao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Bingrui Li
- The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Alexei P Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Ming Tian
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huabin Yang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
- Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300350, China
| | - Peng-Fei Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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6
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Increasing the ionic conductivity and lithium-ion transport of photo-cross-linked polymer with hexagonal arranged porous film hybrids. iScience 2022; 25:104910. [PMID: 36072550 PMCID: PMC9442354 DOI: 10.1016/j.isci.2022.104910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022] Open
Abstract
High ionic conductivity, suitable mechanical strength, and electrochemical stability are the main requirements for high-performance poly(ethylene oxide)-based electrolytes. However, the low ionic conductivity owing to the crystallinity of the ethylene oxide chain that limits the discharge rate and low-temperature performance has restricted the development and commercialization of these electrolytes. Lithium electrolytes that combine high ionic conductivity with a high lithium transference number are rare and are essential for high-power batteries. Here, we report hexagonal arranged porous scaffolds for holding prototype polyethylene glycol-based composite electrolytes containing solvate ionic liquid. The appealing electrochemical and thermal properties indicate their potential as electrolytes for safer rechargeable lithium-ion batteries. The porous scaffolds in the composite electrolytes ensure better electrochemical performance towing to their shortened pores (sizes of 3-14 μm), interconnected pathways, and improved lithium mobility. We demonstrate that both molecular design and porous microstructures are essential for improving performance in polymer electrolytes. Robust HCPE films were fabricated using the breath-figure method HCPE shows high ionic conductivity of 6.66 × 10−4 S cm−1 HCPE exhibits ESW of 4.7 V vs Li+/Li at 60°C and excellent compatibility with Li Molecular design and porous-microstructures are essential for electrolyte performance
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7
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Chen YH, Hsieh YC, Liu KL, Wichmann L, Thienenkamp JH, Choudhary A, Bedrov D, Winter M, Brunklaus G. Green Polymer Electrolytes Based on Polycaprolactones for Solid-State High-Voltage Lithium Metal Batteries. Macromol Rapid Commun 2022; 43:e2200335. [PMID: 35726135 DOI: 10.1002/marc.202200335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/08/2022] [Indexed: 11/05/2022]
Abstract
Solid polymer electrolytes (SPEs) have attracted considerable attention for high energy solid-state lithium metal batteries (LMBs). In this work, potentially ecofriendly, solid-state poly(ε-caprolactone) (PCL)-based star polymer electrolytes with cross-linked structures (xBt-PCL) are introduced that robustly cycle against LiNi0.6 Mn0.2 Co0.2 O2 (NMC622) composite cathodes, affording long-term stability even at higher current densities. Their superior features allow for sufficient suppression of dendritic lithium deposits, as monitored by 7 Li solid-state NMR. Advantageous electrolyte|electrode interfacial properties derived from cathode impregnation with 1.5 wt% PCL enable decent cell performance until up to 500 cycles at rates of 1C (60 °C), illustrating the high potential of PCL-based SPEs for application in high-voltage LMBs.
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Affiliation(s)
- Yi-Hsuan Chen
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
| | - Yi-Chen Hsieh
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
| | - Kun Ling Liu
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
| | - Lennart Wichmann
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
| | | | - Aditya Choudhary
- Department of Materials Science and Engineering, University of Utah, 122 S. Central Campus Dr., Salt Lake City, UT, 84112, USA
| | - Dmitry Bedrov
- Department of Materials Science and Engineering, University of Utah, 122 S. Central Campus Dr., Salt Lake City, UT, 84112, USA
| | - Martin Winter
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany.,MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149, Münster, Germany
| | - Gunther Brunklaus
- Helmholtz Institute Münster
- IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149, Münster, Germany
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8
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Expanding the active charge carriers of polymer electrolytes in lithium-based batteries using an anion-hosting cathode. Nat Commun 2022; 13:3209. [PMID: 35680867 PMCID: PMC9184592 DOI: 10.1038/s41467-022-30788-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 05/18/2022] [Indexed: 12/02/2022] Open
Abstract
Ionic-conductive polymers are appealing electrolyte materials for solid-state lithium-based batteries. However, these polymers are detrimentally affected by the electrochemically-inactive anion migration that limits the ionic conductivity and accelerates cell failure. To circumvent this issue, we propose the use of polyvinyl ferrocene (PVF) as positive electrode active material. The PVF acts as an anion-acceptor during redox processes, thus simultaneously setting anions and lithium ions as effective charge carriers. We report the testing of various Li||PVF lab-scale cells using polyethylene oxide (PEO) matrix and Li-containing salts with different anions. Interestingly, the cells using the PEO-lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) solid electrolyte deliver an initial capacity of 108 mAh g−1 at 100 μA cm−2 and 60 °C, and a discharge capacity retention of 70% (i.e., 70 mAh g−1) after 2800 cycles at 300 μA cm−2 and 60 °C. The Li|PEO-LiTFSI|PVF cells tested at 50 μA cm−2 and 30 °C can also deliver an initial discharge capacity of around 98 mAh g−1 with an electrolyte ionic conductivity in the order of 10−5 S cm−1. The energy content of secondary batteries is often limited by the charge carriers available in the system. Here, the authors employed an anion acceptor cathode for simultaneous use of electrolyte anions and cations as effective charge carriers in solid polymer electrolytes for lithium-based batteries.
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9
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Li S, Huang J, Cui Y, Liu S, Chen Z, Huang W, Li C, Liu R, Fu R, Wu D. A robust all-organic protective layer towards ultrahigh-rate and large-capacity Li metal anodes. NATURE NANOTECHNOLOGY 2022; 17:613-621. [PMID: 35469010 DOI: 10.1038/s41565-022-01107-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
The low cycling efficiency and uncontrolled dendrite growth resulting from an unstable and heterogeneous lithium-electrolyte interface have largely hindered the practical application of lithium metal batteries. In this study, a robust all-organic interfacial protective layer has been developed to achieve a highly efficient and dendrite-free lithium metal anode by the rational integration of porous polymer-based molecular brushes (poly(oligo(ethylene glycol) methyl ether methacrylate)-grafted, hypercrosslinked poly(4-chloromethylstyrene) nanospheres, denoted as xPCMS-g-PEGMA) with single-ion-conductive lithiated Nafion. The porous xPCMS inner cores with rigid hypercrosslinked skeletons substantially increase mechanical robustness and provide adequate channels for rapid ionic conduction, while the flexible PEGMA and lithiated Nafion polymers enable the formation of a structurally stable artificial protective layer with uniform Li+ diffusion and high Li+ transference number. With such artificial solid electrolyte interphases, ultralong-term stable cycling at an ultrahigh current density of 10 mA cm-2 for over 9,100 h (>1 year) and unprecedented reversible lithium plating/stripping (over 2,800 h) at a large areal capacity (10 mAh cm-2) have been achieved for lithium metal anodes. Moreover, the protected anodes also show excellent cell stability when paired with high-loading cathodes (~4 mAh cm-2), demonstrating great prospects for the practical application of lithium metal batteries.
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Affiliation(s)
- Shimei Li
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Junlong Huang
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yin Cui
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shaohong Liu
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China.
| | - Zirun Chen
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Wen Huang
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Chuanfa Li
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ruliang Liu
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ruowen Fu
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Dingcai Wu
- PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, People's Republic of China.
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10
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Klein S, Haneke L, Harte P, Stolz L, van Wickeren S, Borzutzki K, Nowak S, Winter M, Placke T, Kasnatscheew J. Suppressing Electrode Crosstalk and Prolonging Cycle Life in High‐Voltage Li Ion Batteries: Pivotal Role of Fluorophosphates in Electrolytes. ChemElectroChem 2022. [DOI: 10.1002/celc.202200469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sven Klein
- WWU Münster: Westfalische Wilhelms-Universitat Munster Meet GERMANY
| | - Lukas Haneke
- WWU: Westfalische Wilhelms-Universitat Munster Meet GERMANY
| | - Patrick Harte
- WWU Münster: Westfalische Wilhelms-Universitat Munster Meet GERMANY
| | - Lukas Stolz
- FZJ: Forschungszentrum Julich GmbH HIMS GERMANY
| | | | | | - Sascha Nowak
- WWU Münster: Westfalische Wilhelms-Universitat Munster Meet GERMANY
| | | | - Tobias Placke
- WWU Münster: Westfalische Wilhelms-Universitat Munster Meet GERMANY
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11
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Progress on High Voltage PEO-based Polymer Solid Electrolytes in Lithium Batteries. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2065-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Jin X, Cai Z, Zhang X, Yu J, He Q, Lu Z, Dahbi M, Alami J, Lu J, Amine K, Zhang H. Transferring Liquid Metal to form a Hybrid Solid Electrolyte via a Wettability-Tuning Technology for Lithium-Metal Anodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200181. [PMID: 35238080 DOI: 10.1002/adma.202200181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Integrating solid-state electrolyte (SSE) into Li-metal anodes has demonstrated great promise to unleash the high energy density of rechargeable Li-metal batteries. However, fabricating a highly cyclable SSE/Li-metal anode remains a major challenge because the densification of the SSE is usually incompatible with the reactive Li metal. Here, a liquid-metal-derived hybrid solid electrolyte (HSE) is proposed, and a facile transfer technology to construct an artificial HSE on the Li metal is reported. By tuning the wettability of the transfer substrates, electron- and ion-conductive liquid metal is sandwiched between electron-insulating and ion-conductive LiF and oxides to form the HSE. The transfer technology renders the HSE continuous, dense, and uniform. The HSE, having high ion transport, electron shut-off, and mechanical strength, makes the composite anode deliver excellent cyclability for over 4000 h at 0.5 mA cm-2 and 1 mAh cm-2 in a symmetrical cell. When pairing with LiFePO4 and sulfur cathodes, the HSE-coated Li metal dramatically enhances the performance of full cells. Therefore, this work demonstrates that tuning the interfacial wetting properties provides an alternate approach to build a robust solid electrolyte, which enables highly efficient Li-metal anodes.
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Affiliation(s)
- Xin Jin
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Engineering and Applied Sciences, Nanjing University, Jiangsu, 210093, China
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ziqiang Cai
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Engineering and Applied Sciences, Nanjing University, Jiangsu, 210093, China
| | - Xinrui Zhang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, 710062, China
| | - Jianming Yu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Engineering and Applied Sciences, Nanjing University, Jiangsu, 210093, China
| | - Qiya He
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi, 710069, China
| | - Zhenda Lu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Engineering and Applied Sciences, Nanjing University, Jiangsu, 210093, China
| | - Mouad Dahbi
- Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Jones Alami
- Materials Science and Nano-Engineering Department, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Jun Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Department of Material Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Huigang Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Engineering and Applied Sciences, Nanjing University, Jiangsu, 210093, China
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi, 710069, China
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13
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Stolz L, Hochstädt S, Röser S, Hansen MR, Winter M, Kasnatscheew J. Single-Ion versus Dual-Ion Conducting Electrolytes: The Relevance of Concentration Polarization in Solid-State Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11559-11566. [PMID: 35192769 PMCID: PMC8915161 DOI: 10.1021/acsami.2c00084] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/10/2022] [Indexed: 05/19/2023]
Abstract
Lithium batteries with solid polymer electrolytes (SPEs) and mobile ions are prone to mass transport limitations, that is, concentration polarization, creating a concentration gradient with Li+-ion (and counter-anion) depletion toward the respective electrode, as can be electrochemically observed in, for example, symmetric Li||Li cells and confirmed by Sand and diffusion equations. The effect of immobile anions is systematically investigated in this work. Therefore, network-based SPEs are synthesized with either mobile (dual-ion conduction) or immobile anions (single-ion conduction) and proved via solvation tests and nuclear magnetic resonance spectroscopy. It is shown that the SPE with immobile anions does not suffer from concentration polarization, thus disagreeing with Sand and diffusion assumptions, consequently suggesting single-ion (Li+) transport via migration instead. Nevertheless, the practical relevance of single-ion conduction can be debated. Under practical conditions, that is, below the limiting current, the concentration polarization is generally not pronounced with DIC-based electrolytes, rendering the beneficial effect of SIC redundant and DIC a better choice due to better kinetical aspects under these conditions. Also, the observed dendritic Li in both electrolytes questions a relevant impact of mass transport on its formation, at least in SPEs.
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Affiliation(s)
- Lukas Stolz
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße
46, 48149 Münster, Germany
| | - Sebastian Hochstädt
- Institute
of Physical Chemistry, University of Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Stephan Röser
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße
46, 48149 Münster, Germany
- E-Lyte
Innovations GmbH, Mendelstraße
11, 48149 Münster, Germany
| | - Michael Ryan Hansen
- Institute
of Physical Chemistry, University of Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Martin Winter
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße
46, 48149 Münster, Germany
- MEET
Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Johannes Kasnatscheew
- Helmholtz-Institute
Münster, IEK-12, Forschungszentrum
Jülich GmbH, Corrensstraße
46, 48149 Münster, Germany
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14
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Deconvoluting sources of failure in lithium metal batteries containing NMC and PEO-based electrolytes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Yao Z, Zhu K, Li X, Zhang J, Chen J, Wang J, Yan K, Liu J. 3D poly(vinylidene fluoride–hexafluoropropylen) nanofiber-reinforced PEO-based composite polymer electrolyte for high-voltage lithium metal batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Klein S, Bärmann P, Stolz L, Borzutzki K, Schmiegel JP, Börner M, Winter M, Placke T, Kasnatscheew J. Demonstrating Apparently Inconspicuous but Sensitive Impacts on the Rollover Failure of Lithium-Ion Batteries at a High Voltage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57241-57251. [PMID: 34813694 DOI: 10.1021/acsami.1c17408] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Layered oxides, such as Li[Ni0.5Co0.2Mn0.3]O2 (NCM523), are promising cathode materials for operation at a high voltage, i.e., high-energy lithium-ion batteries. The instability-reasoned transition metal dissolution remains a major challenge, which initiates electrode cross-talk, alteration of the solid electrolyte interphase, and enhanced Li-metal dendrite formation at the graphite anode, consequently leading to rollover failure. In this work, relevant impacts on this failure mechanism are highlighted. For example, a conventional coating of NCM523 with aluminum oxide as a typical high-voltage modification improves kinetic aspects but can only postpone the rollover failure to later charge/discharge cycles. Interestingly, a similar effect on the rollover failure is observed merely after modification of the cell formation protocol, i.e., the first cycles. Further influences of specific test protocols are highlighted and show that the rollover failure even disappears at C-rates above 2C, which can be attributed to a more homogeneous distribution of Li-metal dendrite formation. It is worth noting that a variation of anode porosity can reveal similar effects, as, e.g., variations in anode processing also impact Li dendrite distribution and the appearance of rollover failure. Overall, the rollover failure is a valid but complex phenomenon, which sensitively depends on apparently inconspicuous parameters and should not be disregarded.
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Affiliation(s)
- Sven Klein
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
| | - Peer Bärmann
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
| | - Lukas Stolz
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, Münster 48149, Germany
| | - Kristina Borzutzki
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, Münster 48149, Germany
| | - Jan-Patrick Schmiegel
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
| | - Markus Börner
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
| | - Martin Winter
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, Münster 48149, Germany
| | - Tobias Placke
- MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, Münster 48149, Germany
| | - Johannes Kasnatscheew
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, Münster 48149, Germany
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17
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Butzelaar AJ, Röring P, Mach TP, Hoffmann M, Jeschull F, Wilhelm M, Winter M, Brunklaus G, Théato P. Styrene-Based Poly(ethylene oxide) Side-Chain Block Copolymers as Solid Polymer Electrolytes for High-Voltage Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39257-39270. [PMID: 34374509 DOI: 10.1021/acsami.1c08841] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, we report the design of styrene-based poly(ethylene oxide) (PEO) side-chain block copolymers featuring a microphase separation and their application as solid polymer electrolytes in high-voltage lithium-metal batteries. A straightforward synthesis was established, overcoming typical drawbacks of PEO block copolymers prepared by anionic polymerization or ester-based PEO side-chain copolymers. Both the PEO side-chain length and the LiTFSI content were varied, and the underlying relationships were elucidated in view of polymer compositions with high ionic conductivity. Subsequently, a selected composition was subjected to further analyses, including phase-separated morphology, providing not only excellent self-standing films with intrinsic mechanical stability but also the ability to suppress lithium dendrite growth as well as good flexibility, wettability, and good contacts with the electrodes. Furthermore, good thermal and electrochemical stability was demonstrated. To do so, linear sweep and cyclic voltammetry, lithium plating/stripping tests, and galvanostatic overcharging using high-voltage cathodes were conducted, demonstrating stable lithium-metal interfaces and a high oxidative stability of around 4.75 V. Consequently, cycling of Li||NMC622 cells did not exhibit commonly observed rapid cell failure or voltage noise associated with PEO-based electrolytes in Li||NMC622 cells, attributed to the high mechanical stability. A comprehensive view is provided, highlighting that the combination of PEO and high-voltage cathodes is not impossible per se.
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Affiliation(s)
- Andreas J Butzelaar
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Philipp Röring
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
| | - Tim P Mach
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Maxi Hoffmann
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Fabian Jeschull
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials-Energy Storage Systems (IAM-ESS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manfred Wilhelm
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
| | - Martin Winter
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
- MEET Battery Research Center/Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Gunther Brunklaus
- Helmholtz-Institute Münster, IEK-12, Forschungszentrum Jülich GmbH, Corrensstraße 46, 48149 Münster, Germany
- MEET Battery Research Center/Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149 Münster, Germany
| | - Patrick Théato
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, 76131 Karlsruhe, Germany
- Karlsruhe Institute of Technology (KIT), Soft Matter Laboratory-Institute for Biological Interfaces III (IBG-3), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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18
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Stolz L, Homann G, Winter M, Kasnatscheew J. Area Oversizing of Lithium Metal Electrodes in Solid-State Batteries: Relevance for Overvoltage and thus Performance? CHEMSUSCHEM 2021; 14:2163-2169. [PMID: 33756054 PMCID: PMC8251826 DOI: 10.1002/cssc.202100213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/23/2021] [Indexed: 05/29/2023]
Abstract
Systematic and systemic research and development of solid electrolytes for lithium batteries requires a reliable and reproducible benchmark cell system. Therefore, factors relevant for performance, such as temperature, voltage operation range, or specific current, should be defined and reported. However, performance can also be sensitive to apparently inconspicuous and overlooked factors, such as area oversizing of the lithium electrode and the solid electrolyte membrane (relative to the cathode area). In this study, area oversizing is found to diminish polarization and improves the performance in LiNi0.6 Mn0.2 Co0.2 O2 (NMC622)||Li cells, with a more pronounced effect under kinetically harsh conditions (e. g., low temperature and/or high current density). For validity reasons, the polarization behavior is also investigated in Li||Li symmetric cells. Given the mathematical conformity of the characteristic overvoltage behavior with the Sand's equation, the beneficial effect is attributed to lower depletion of Li ions at the electrode/electrolyte interface. In this regard, the highest possible effect of area oversizing on the performance is discussed, that is when the accompanied decrease in current density and overvoltage overcomes the Sand's threshold limit. This scenario entirely prevents the capacity decay attributable to Li+ depletion and is in line with the mathematically predicted values.
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Affiliation(s)
- Lukas Stolz
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstraße 4648149MünsterGermany
| | - Gerrit Homann
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstraße 4648149MünsterGermany
| | - Martin Winter
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstraße 4648149MünsterGermany
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstraße 4648149MünsterGermany
| | - Johannes Kasnatscheew
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstraße 4648149MünsterGermany
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19
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Klein S, Bärmann P, Beuse T, Borzutzki K, Frerichs JE, Kasnatscheew J, Winter M, Placke T. Exploiting the Degradation Mechanism of NCM523 ∥ Graphite Lithium-Ion Full Cells Operated at High Voltage. CHEMSUSCHEM 2021; 14:595-613. [PMID: 33105061 PMCID: PMC7894331 DOI: 10.1002/cssc.202002113] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/03/2020] [Indexed: 05/29/2023]
Abstract
Layered oxides, particularly including Li[Nix Coy Mnz ]O2 (NCMxyz) materials, such as NCM523, are the most promising cathode materials for high-energy lithium-ion batteries (LIBs). One major strategy to increase the energy density of LIBs is to expand the cell voltage (>4.3 V). However, high-voltage NCM ∥ graphite full cells typically suffer from drastic capacity fading, often referred to as "rollover" failure. In this study, the underlying degradation mechanisms responsible for failure of NCM523 ∥ graphite full cells operated at 4.5 V are unraveled by a comprehensive study including the variation of different electrode and cell parameters. It is found that the "rollover" failure after around 50 cycles can be attributed to severe solid electrolyte interphase growth, owing to formation of thick deposits at the graphite anode surface through deposition of transition metals migrating from the cathode to the anode. These deposits induce the formation of Li metal dendrites, which, in the worst cases, result in a "rollover" failure owing to the generation of (micro-) short circuits. Finally, approaches to overcome this dramatic failure mechanism are presented, for example, by use of single-crystal NCM523 materials, showing no "rollover" failure even after 200 cycles. The suppression of cross-talk phenomena in high-voltage LIB cells is of utmost importance for achieving high cycling stability.
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Affiliation(s)
- Sven Klein
- University of Münster, MEET Battery Research CenterInstitute of Physical ChemistryCorrensstr. 4648149MünsterGermany
| | - Peer Bärmann
- University of Münster, MEET Battery Research CenterInstitute of Physical ChemistryCorrensstr. 4648149MünsterGermany
| | - Thomas Beuse
- University of Münster, MEET Battery Research CenterInstitute of Physical ChemistryCorrensstr. 4648149MünsterGermany
| | - Kristina Borzutzki
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
| | - Joop Enno Frerichs
- University of Münster, Institute of Physical ChemistryCorrensstr. 3048149MünsterGermany
| | - Johannes Kasnatscheew
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
| | - Martin Winter
- University of Münster, MEET Battery Research CenterInstitute of Physical ChemistryCorrensstr. 4648149MünsterGermany
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
| | - Tobias Placke
- University of Münster, MEET Battery Research CenterInstitute of Physical ChemistryCorrensstr. 4648149MünsterGermany
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20
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Gou J, Liu W, Tang A. A renewable gel polymer electrolyte based on the different sized carboxylated cellulose with satisfactory comprehensive performance for rechargeable lithium ion battery. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122943] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Streipert B, Stolz L, Homann G, Janßen P, Cekic‐Laskovic I, Winter M, Kasnatscheew J. Conventional Electrolyte and Inactive Electrode Materials in Lithium-Ion Batteries: Determining Cumulative Impact of Oxidative Decomposition at High Voltage. CHEMSUSCHEM 2020; 13:5301-5307. [PMID: 32692891 PMCID: PMC7589409 DOI: 10.1002/cssc.202001530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/18/2020] [Indexed: 06/01/2023]
Abstract
High-voltage electrodes based on, for example, LiNi0.5 Mn1.5 04 (LNMO) active material require oxidative stability of inactive materials up to 4.95 V vs. Li|Li+ . Referring to literature, they are frequently supposed to be unstable, though conclusions are still controversial and clearly depend on the used investigation method. For example, the galvanostatic method, as a common method in battery research, points to the opposite, thus to a stability of the inactive materials, which can be derived from, for example, the high decomposition plateau at 5.56 V vs. Li|Li+ and stable performance of the LNMO charge/discharge cycling. This work aims to unravel this apparent contradiction of the galvanostatic method with the literature by a thorough investigation of possible trace oxidation reactions in cumulative manner, that is, over many charge/discharge cycles. Indeed, the cumulated irreversible specific capacity amounts to ≈10 mAh g-1 during the initial 50 charge/discharge cycles, which is determined by imitating extreme LNMO high-voltage conditions using electrodes solely consisting of inactive materials. This can explain the ambiguities in stability interpretations of the galvanostatic method and the literature, as the respective irreversible specific capacity is obviously too low for distinct detection in conventional galvanostatic approaches and can be only detected at extreme high-voltage conditions. In this regard, the technique of chronoamperometry is shown to be an effective and proper complementary tool for electrochemical stability research in a qualitative and quantitative manner.
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Affiliation(s)
- Benjamin Streipert
- MEET Battery Research CenterUniversity of MünsterCorrensstraße 4648149MünsterGermany
| | - Lukas Stolz
- Helmholtz-Institute Münster (HI MS) IEK-12Forschungszentrum Jülich GmbHCorrensstrasse 4648149MünsterGermany
| | - Gerrit Homann
- Helmholtz-Institute Münster (HI MS) IEK-12Forschungszentrum Jülich GmbHCorrensstrasse 4648149MünsterGermany
| | - Pia Janßen
- MEET Battery Research CenterUniversity of MünsterCorrensstraße 4648149MünsterGermany
| | - Isidora Cekic‐Laskovic
- Helmholtz-Institute Münster (HI MS) IEK-12Forschungszentrum Jülich GmbHCorrensstrasse 4648149MünsterGermany
| | - Martin Winter
- MEET Battery Research CenterUniversity of MünsterCorrensstraße 4648149MünsterGermany
- Helmholtz-Institute Münster (HI MS) IEK-12Forschungszentrum Jülich GmbHCorrensstrasse 4648149MünsterGermany
| | - Johannes Kasnatscheew
- Helmholtz-Institute Münster (HI MS) IEK-12Forschungszentrum Jülich GmbHCorrensstrasse 4648149MünsterGermany
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