Article
Chemistry, Physical
Florian Gebert, Matilde Longhini, Fosca Conti, Andrew J. Naylor
Summary: The rapid adoption of lithium-ion batteries, especially in transportation, has raised concerns about their safety, particularly regarding the flammable liquid electrolyte. This study identified and tested eight promising non-flammable liquid electrolytes, finding that the phosphorus-free fluorinated solvents outperformed the phosphate and phosphonate-based solvents in terms of performance and capacity retention.
JOURNAL OF POWER SOURCES
(2023)
Article
Green & Sustainable Science & Technology
Jangho Park, Sanghyuk Park, Mincheol Beak, Seongdeock Jeong, Kyungjung Kwon
Summary: This study investigates the effects of electrolyte components on the performance of LiNi0.8Mn0.1Co0.1O2 cathode material. The presence of PF6- anions in cathode material benefits the cyclability and rate performance of lithium-ion batteries. On the other hand, organic solvents negatively affect the morphology and initial discharge capacity.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Kun Qian, Yuzi Liu, Xinwei Zhou, David J. Gosztola, Hoai Nguyen, Tao Li
Summary: Battery degradation is caused by multiple factors, with electrochemical corrosion being one of the main reasons. While highly concentrated electrolytes show promise in inhibiting aluminum corrosion, they do not significantly improve the growth of lithium dendrites or the protection of the cathode-electrolyte interphase. This study provides a paradigm for comprehensive evaluation of electrolyte performance.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Jae-Sang Park, Chang-Heum Jo, Seung-Taek Myung
Summary: All-solid-state batteries (ASSBs), especially sulfide-based ones, are considered as the most promising electrolytes for next-generation energy storage technologies due to their high ionic conductivity. However, commercializing sulfide-based electrolytes poses challenges such as handling in inert atmosphere, sensitivity to moisture, instability between interfaces, and operating potential limitations. This article discusses the physicochemical properties of argyrodite-based electrolytes, summarizes synthetic methods and electrochemical stability findings, and explores directions for research and development.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Anna Warrington, Meisam Hasanpoor, Ali Balkis, Patrick C. Howlett, Oliver E. Hutt, Maria Forsyth, Jennifer M. Pringle
Summary: Investigating the use of ether-functionalised cations as a method to increase fluidity and enhance Li+ transport in highly concentrated ionic liquid electrolytes for lithium metal batteries. Experimental results show that (LiFSI)(0.5)([C1O1mpip][FSI])(0.5) and (LiFSI)(0.5)([N-111,N-1O1][FSI])(0.5) electrolytes have high Li transference numbers and good cycling performance in Li metal batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Antonia Kotronia, Habtom D. Asfaw, Cheuk-Wai Tai, Maria Hahlin, Daniel Brandell, Kristina Edstrom
Summary: Dual-ion batteries (DIBs) operating at voltages beyond 4.7 V exhibit different performances based on the electrolyte used, with higher Coulombic efficiency and specific capacity achieved in HCEs with LiFSI and LiTFSI salts compared to those with LiPF6. XPS analysis reveals that LiFSI and LiTFSI electrolytes result in thinner surface layers on intercalated graphite electrodes compared to LiPF6, indicating a difference in interface formation and decomposition product buildup.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Soumaya Gmar, Laurence Muhr, Florence Lutin, Alexandre Chagnes
Summary: This study assessed the potential of electrodialysis in recycling spent lithium-ion batteries and proposed a hybrid flowsheet involving various technologies to reduce effluent generation and produce metal salts.
Article
Chemistry, Physical
Wenhao Ren, Chenfeng Ding, Xuewei Fu, Yun Huang
Summary: Lithium metal batteries (LMBs) are gaining attention for their high energy density, but safety concerns and performance degradation have hindered their practical use. Gel polymer electrolytes (GPEs) are seen as a promising alternative to liquid electrolytes, with advancements in design and fabrication enabling the development of safe and durable LMBs. This review highlights the progress in GPEs with specific functionalities and outlines future directions and challenges for large-scale production and application in new energy storage systems.
ENERGY STORAGE MATERIALS
(2021)
Article
Metallurgy & Metallurgical Engineering
Ehsan Ebrahimi, Mehrdad Kordloo, Gholamreza Khodadadmahmoudi, Ali Rezaei, Mohammadreza Ganjali, Gisele Azimi
Summary: This study utilizes deep eutectic solvents (DESs) to efficiently recover metals from spent lithium-ion batteries (LIBs), with a focus on evaluating the leaching potential of different types of DES. A ternary DES shows better performance as a leachant than other DESs.
Article
Engineering, Environmental
Chen Wang, Xiaochen Sun, Jv Zhang, Xiaoli Zhai, Xin Zhang, Zhuo Li, Hongdong Li
Summary: In this study, it is demonstrated that introducing nanodiamonds with high concentration of H2O can improve the performance of commercial lithium ion batteries. The synergistic effect of nanodiamonds and H2O leads to the formation of a highly conductive SEI network, enhanced ionic conductivity and separator wettability of electrolyte, mitigated erosion of graphite anode, and increased storage sites for Li+. This work provides an efficient method to boost the performance of LIBs and reduce production costs in practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xingyi Zhang, Qingwei Sun, Cheng Zhen, Yinghua Niu, Yupei Han, Guangfeng Zeng, Dongjiang Chen, Chao Feng, Ning Chen, Weiqiang Lv, Weidong He
Summary: This review summarizes recent developments towards highly flame-retardant separators and solid-state electrolytes for lithium-ion batteries, including the composition, structure, and performance of flame-retardant separators for liquid LIBs, as well as different types of solid-state electrolytes. Future challenges and outlooks for flame-retardant separators in practical applications are also discussed.
ENERGY STORAGE MATERIALS
(2021)
Article
Electrochemistry
Georgios Nikiforidis, Meriem Anouti
Summary: This study demonstrates the compatibility of low-concentration Li salt electrolytes with promising cathode and anode materials, showcasing excellent performance in terms of high specific capacities, high coulombic efficiencies, high capacity retention, modest energy density, and extended calendar life.
BATTERIES & SUPERCAPS
(2021)
Article
Chemistry, Multidisciplinary
Jin Li, Chengjun Han, Xuewu Ou, Yongbing Tang
Summary: Calcium-ion batteries (CIBs) have great potential for energy storage applications due to the abundance, low redox potential, and multivalent properties of calcium (Ca). However, the lack of suitable electrolytes and electrode materials has restricted the cycling stability and capacity of CIBs. In this study, a concentrated electrolyte with a calcium bis(fluorosulfonyl)imide (Ca(FSI)(2)) salt dissolved in carbonate solvents was developed, which significantly improved the intercalation capacity for anions in the graphite cathode and the reversible insertion of Ca2+ in the organic anode. By combining this electrolyte with low-cost graphite cathode and organic anode, a Ca-based dual-ion battery (Ca-DIB) with high specific discharge capacity and good capacity retention was achieved.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Julius Schmitt, Markus Schindler, Andreas Jossen
Summary: The study experimentally investigated the aging invariance of the shape of both half-cell OCP curves of a commercial NMC-811/silicon-graphite cell, revealing that the OCP of NMC-811 remains unchanged while the OCP of silicon-graphite undergoes changes mainly due to a decrease in the relative capacity contribution of silicon. These findings suggest that changes in the shape of the OCP curve of silicon-graphite during cycle aging should be taken into consideration in electrical battery models used for full-cell aging diagnostics and state estimation algorithms in battery management systems.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Rung-Chuan Lee, Joseph Franklin, Chixia Tian, Dennis Nordlund, Marca Doeff, Robert Kostecki
Summary: The study demonstrates that a simple surface treatment can suppress film formation on NMC electrodes and reduce impedance rise; detailed modeling shows that surface treatment helps reduce cell impedance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Applied
Aiman Jrondi, Georgios Nikiforidis, Meriem Anouti
Summary: The study formulated hybrid electrolytes with alkaline salts and carbonates, exhibiting similar physicochemical properties and electrochemical behaviors to commercial LIB electrolytes, with high cell efficiency and capacity retention. The hybrid electrolytes showed good specific capacities in Gr//NCA cells, demonstrating potential for energy storage applications.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Electrochemistry
Georgios Nikiforidis, Mariam El Yagoubi, Meriem Anouti
Summary: A study on an organic electrolyte based on CsTFSI for supercapacitor application revealed different solution organization systems depending on solvent and salt characteristics. The CsTFSI electrolyte showed suitable viscosity and density for supercapacitor application, along with compatibility with the porosity of activated carbon electrodes. Promising results were obtained in terms of specific capacitance and stability of the supercapacitors.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Applied
Joseph Chidiac, Laure Timperman, Meriem Anouti
Summary: The study reveals that the anion size and symmetry greatly influence the transport properties and thermal stability of an electrolyte based on FTFSI salt. The FTFSI anion shows lower activation enthalpy and entropy energy barriers for viscous flow compared to symmetric anions like LiFSI and LiTFSI. The conductivity of the electrolyte is affected by the solvent nature, with FTFSI ions showing stronger solvation in a binary mixture compared to a ternary mixture.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Electrochemistry
Joseph Chidiac, Laure Timperman, Meriem Anouti
Summary: This study presents an original formulation of a deep eutectic electrolyte based on lithium imide salt, which shows good safety and stability as an electrolyte for Li-ion batteries. The electrolyte exhibits characteristics similar to ionic liquids or deep eutectic solvents, with good transport properties and compatibility with lithium metal and graphite.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Shofarul Wustoni, Georgios Nikiforidis, Sahika Inal, Yuli Setyo Indartono, Veinardi Suendo, Brian Yuliarto
Summary: The development of conducting polymer-based supercapacitors provides advantages such as good conductivity, low cost, and flexibility. Improving the capacitance and cycle life of PEDOT remains a challenge, and composites with carbon nanomaterials and metal oxides are commonly used for enhancement. By fabricating stable PEDOT derivative electrodes with electrochemical polymerization, specific capacitance can be increased, leading to high-performance supercapacitors.
Article
Chemistry, Physical
Joseph Chidiac, Georgios Nikiforidis, Laure Timperman, Meriem Anouti
Summary: This study introduces two deep eutectic solvents (DESs) based on alkaline imide salts as functional electrolytes for supercapacitor applications. These DESs exhibit excellent chemical stability and high conductivity, and when coupled with activated carbon electrodes, they show high specific capacity and cycling stability. The research suggests that these eutectic mixtures offer a simple, safe, and effective electrolyte solution for supercapacitor applications.
Article
Electrochemistry
Georgios Nikiforidis, Julie Pires, Satyajit Phadke, Meriem Anouti
Summary: This feature article investigated critical parameters of the cathode in lithium-sulfur batteries, demonstrated the applicability and performance of polychalcogenide-based catholytes, and provided fundamental insights for future battery system designs.
Article
Chemistry, Multidisciplinary
Georgios Nikiforidis, Satyajit Phadke, Meriem Anouti
Summary: This study investigates the real-time pressure increase of accumulated gases at the electrode/electrolyte interface as a safety criterion for conductive electrolytes. It finds that the SPBF4/ACN system exhibits good electrochemical stability and low gas generation at high operating voltage, while electrolytes with acyclic tetrafluoroborate salts have increased pressure due to weak salt-ACN interactions and solvent evaporation.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Electrochemistry
Mohamed Raghibi, Georgios Nikiforidis, Meriem Anouti
Summary: In this study, an easy-to-produce, widely available and cheap manganese nitrate concentrated electrolyte with deep eutectic solvent properties was examined. It was successfully incorporated into a two-electrode symmetric supercapacitor and exhibited a specific capacitance retention of 93% (170 F g(-1)) through 2000 consecutive charge-discharge cycles at 25 and 20 degrees C.
Article
Electrochemistry
Fabien Chretien, Georgios Nikiforidis, Christine Damas, Meriem Anouti
Summary: This study examines the effect of three surfactants on the physicochemical properties and electrochemical performance of the solid electrolyte interface. The results show that surfactants can improve electrode interfaces and prevent the harmful effects of passivation layer salts. The performance of the half-cells is influenced differently by the different surfactants.