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Wu XW, Seenivasan M, Karuppiah C, Zhang BR, Shih JY, James Li YJ, Hung TF, Chien WC, Ramaraj SK, Jose R, Yang CC. Fabrication electro-spun Poly(vinyl alcohol)-Melamine nonwoven membrane composite separator for high-power lithium-ion batteries. Heliyon 2024; 10:e34436. [PMID: 39082013 PMCID: PMC11284413 DOI: 10.1016/j.heliyon.2024.e34436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/24/2024] [Accepted: 07/09/2024] [Indexed: 08/02/2024] Open
Abstract
Current commercial separators used in lithium-ion batteries have inherent flaws, especially poor thermal stability, which pose substantial safety risks. This study introduces a high-safety composite membrane made from electrospun poly(vinyl alcohol)-melamine (PVAM) and polyvinylidene fluoride (PVDF) polymer solutions via a dip coating method, designed for high-voltage battery systems. The poly(vinyl alcohol) and melamine components enhance battery safety, while the PVDF coating improves lithium-ion conductivity. The dip-coated PVDF/Esp-PVAM composite separators were evaluated for electrolyte uptake, contact angle, thermal stability, porosity, electrochemical stability and ionic conductivity. Notably, our Dip 1 % PVDF@Esp-PVAM composite separator exhibited excellent wettability and a lithium-ion conductivity of approximately 7.75 × 10⁻⁴ S cm⁻1 at room temperature. These separators outperformed conventional PE separators in half-cells with Ni-rich NCM811 cathodes, showing exceptional cycling stability with 93.4 % capacity retention after 100 cycles at 1C/1C, as compared to 84.8 % for PE separators. Our Dip 1 % PVDF@Esp-PVAM composite separator demonstrates significant potential for enhancing the long-term durability and high-rate performance of lithium-ion batteries, making it a promising option for long-term energy storage applications.
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Affiliation(s)
- Xiao-Wei Wu
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
| | - Manojkumar Seenivasan
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
| | - Chelladurai Karuppiah
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
| | - Bo-Rong Zhang
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
| | - Jeng-Ywan Shih
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
| | - Ying-Jeng James Li
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
| | - Tai-Feng Hung
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
| | - Wen-Chen Chien
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
| | - Sayee Kannan Ramaraj
- PG and Research Department of Chemistry, Thiagarajar College, Madurai, Tamil Nadu, India
| | - Rajan Jose
- Nanostructured Renewable Energy Materials Laboratory, Faculty of Industrial Sciences and Technology, University Malaysia Pahang, 26300 Kuantan, Malaysia
| | - Chun-Chen Yang
- Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, 24301, Taiwan, R.O.C
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, R.O.C
- Department of Chemical and Materials Engineering & Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan City 333, Taiwan
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Maldonado-Ochoa SA, Zampieri M, Otero M, Vaca Chávez F. Morphology characterization of dendrites on lithium metal electrodes by NMR spectroscopy. Phys Chem Chem Phys 2024; 26:17141-17147. [PMID: 38847322 DOI: 10.1039/d4cp01019a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Despite the considerable potential offered by lithium metal's high capacity for rechargeable batteries, challenges such as dendrite formation and safety concerns persist. As strategies continue to advance in dendrite management, the demand for efficient monitoring tools becomes increasingly pronounced. In this study, we delve into the characterization of dendrites, elucidating the influence of microstructure morphology on the NMR spectrum using a combination of simulations and experiments. Systematic variations in various geometrical parameters highlight dendrite density as a pivotal distinguishing feature. Furthermore, the investigation explores the effectiveness of a pulse sequence in selectively exciting microstructures over the bulk, providing valuable insights into mitigating dendrite-related challenges in lithium-metal batteries.
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Affiliation(s)
- Santiago Agustín Maldonado-Ochoa
- Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación, Córdoba, Argentina.
- CONICET. Instituto de Física Enrique Gaviola (IFEG), Córdoba, Argentina
| | - Muriel Zampieri
- Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación, Córdoba, Argentina.
- CONICET. Instituto de Física Enrique Gaviola (IFEG), Córdoba, Argentina
| | - Manuel Otero
- Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación, Córdoba, Argentina.
- CONICET. Instituto de Física Enrique Gaviola (IFEG), Córdoba, Argentina
| | - Fabián Vaca Chávez
- Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación, Córdoba, Argentina.
- CONICET. Instituto de Física Enrique Gaviola (IFEG), Córdoba, Argentina
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Kim J, Kwon K, Kim K, Han S, Kim PJ, Choi J. Size Effect of a Piezoelectric Material as a Separator Coating Layer for Suppressing Dendritic Li Growth in Li Metal Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:90. [PMID: 36616000 PMCID: PMC9823885 DOI: 10.3390/nano13010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/16/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Li metal has been intensively investigated as a next-generation rechargeable battery anode. However, its practical application as the anode material is hindered by the deposition of dendritic Li. To suppress dendritic Li growth, introducing a modified separator is considered an effective strategy since it promotes a uniform Li ion flux and strengthens thermal and mechanical stability. Herein, we present a strategy for the surface modification of separator, which involves coating the separator with a piezoelectric material (PM). The PM-coated separator shows higher thermal resistance than the pristine separator, and its modified surface properties enable the homogeneous regulation of the Li-ion flux when the separator is punctured by Li dendrite. Furthermore, PM was synthesized in different solvents via solvothermal method to explore the size effect. This strategy would be helpful to overcome the intrinsic Li metal anode problems.
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Affiliation(s)
- Junghwan Kim
- Energy Storage Materials Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea
- Department of Applied Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kihwan Kwon
- Energy Storage Materials Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea
- Department of Applied Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kwanghyun Kim
- Energy Storage Materials Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea
- Department of Applied Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seungmin Han
- Energy Storage Materials Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea
| | - Patrick Joohyun Kim
- Department of Applied Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Junghyun Choi
- Energy Storage Materials Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea
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Kianfar P, Bongiovanni R, Ameduri B, Vitale A. Electrospinning of Fluorinated Polymers: Current State of the Art on Processes and Applications. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2067868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Parnian Kianfar
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Roberta Bongiovanni
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Bruno Ameduri
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Alessandra Vitale
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
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