Article
Nanoscience & Nanotechnology
Lu Bai, Sina Ghiassinejad, Jeremy Brassinne, Yang Fu, Jiande Wang, Hui Yang, Alexandru Vlad, Andrea Minoia, Roberto Lazzaroni, Jean-Francois Gohy
Summary: The introduction of a new solid polymer electrolyte, where PMAPC1 is mixed with LiTFSI and AN to form membranes with high ionic conductivity, offers improved battery performance and fire-retardant properties.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Abdullahi Abbas Adam, Mohammed Khalil Mohammed Ali, John Ojur Dennis, Hassan Soleimani, Muhammad Fadhlullah Bin Abd Shukur, Khalid Hassan Ibnaouf, Osamah A. Aldaghri, Moez A. Ibrahem, Naglaa F. M. Abdel All, Abubakar Bashir Abdulkadir
Summary: In this study, innovative green and sustainable solid polymer electrolytes based on plasticized methylcellulose/polyvinyl pyrrolidone/potassium carbonate were investigated. The conductivity mechanism, stability, and cation transfer number of the electrolytes were studied using various techniques. The results showed that the electrolyte with 15 wt.% ethylene carbonate concentration exhibited the highest conductivity and specific capacitance.
Article
Chemistry, Physical
Majid Rezaei, Sung Sakong, Axel Gross
Summary: Accurate modeling of highly concentrated aqueous solutions, such as WiS electrolytes, requires proper consideration of polarization contributions. This study analyzes different approaches to include polarization effects in MD simulations and identifies an efficient combination of force fields for Na-OTF solution: a Drude polarizable force field for salt ions and non-polarizable models for water. This cost-effective combination ensures simulation stability and reproduces a broad range of electrolyte properties.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Physical
Yosuke Ugata, Gen Hasegawa, Naoaki Kuwata, Kazuhide Ueno, Masayoshi Watanabe, Kaoru Dokko
Summary: The study investigated the transport properties of Li salt/sulfolane (SL) electrolytes as a function of temperature. It was found that Li+ ion diffuses faster than other ions in highly concentrated electrolytes, indicating the occurrence of Li+-ion hopping conduction. The results provide important insights for designing electrolytes for advanced Li batteries.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Shenghang Zhang, Xiangchun Zhuang, Xiaofan Du, Xiaohu Zhang, Jiedong Li, Gaojie Xu, Zhongqin Ren, Zili Cui, Lang Huang, Shitao Wang, Fun Sun, Lixin Qiao, Shanmu Dong, Guanglei Cui
Summary: A novel additive of potassium perfluoropinacolatoborate (KFPB) is synthesized to improve the compatibility between Li anode and carbonate electrolyte. KFPB additive can regulate the solvation structure of the electrolyte and promote the formation of stable solid-electrolyte interphase (SEI) layer on Li anode surface. With trace amount of KFPB, Li dendrites' growth can be suppressed and Li-metal batteries exhibit excellent cycling stability.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Irina V. Beregovaya, Irina S. Tretyakova, Vsevolod I. Borovkov
Summary: The primary radical cations in irradiated carbonates are rapidly deprotonated, while solvent-related radical cationic species with a longer lifetime are also formed. A quantum chemical model of carbonate ionization reconciles these conflicting data. The loss of an electron from dimeric associates in solution is shown to explain these processes, suggesting a revision of the traditional conceptualization of ionization events for polar aprotic liquids.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Chemical
Heemyeong Yang, Anh Le Mong, Dukjoon Kim
Summary: A novel polymer electrolyte membrane based on PAES-g-PVEC/PEG and 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl sulfonyl)imide was prepared, which exhibited superior electrochemical performance, good thermal and mechanical stability. The dual functional groups of polyether and polycarbonate grafted on the PAES backbones provided a synergistic effect for lithium ion transport and electrochemical performance. The membrane containing 30 mol% PVEC and 70 mol% PEG showed high ionic conductivity and Li(+) transference number at room temperature, making it suitable for flexible solid state lithium metal batteries.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Xianyang Wu, Lin Ma, Jue Liu, Kejie Zhao, David L. Wood, Zhijia Du
Summary: Different concentrations of lithium salt in carbonate electrolyte were studied on the fast charging performance of LiNi0.6Mn0.2Co0.2O2 (NMC622)/graphite pouch cells. The cells with 1.5 M electrolyte showed the best overall performance in fast charging capacity and long-term cycling.
JOURNAL OF POWER SOURCES
(2022)
Review
Multidisciplinary Sciences
S. Hamidreza Beheshti, Mehran Javanbakht, Hamid Omidvar, Md Sazzad Hosen, Annick Hubin, Joeri Van Mierlo, Maitane Berecibar
Summary: Formation of a suitable solid-electrolyte interphase (SEI) is recognized as a method to improve the performance of lithium-ion batteries. Introducing reduction-type additives to carbonate electrolytes has been a commonly used method to generate effective SEI. This article provides a general review and classification of the SEI formation processes, impacting parameters, and the functionality of the additives.
Article
Chemistry, Multidisciplinary
Bitgaram Kim, Su Hyun Yang, Ji-Hun Seo, Yun Chan Kang
Summary: The molecular structure of the polymer network has a significant influence on the state of succinonitrile and the ionic conductivity. By optimizing the miscibility, a polymer plastic crystal electrolyte with high ionic conductivity has been achieved. This study is of great importance for the development of high-performance solid-state lithium-metal batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Hai-Peng Liang, Dominic Bresser
Summary: The stable electrode|electrolyte interfaces are crucial for the long lifespan and high energy performance of lithium-metal batteries, and one promising approach to achieve this is the use of single-ion conducting polymer electrolytes. This article discusses this approach, citing a recent study published in Advanced Energy Materials as an example, and provides an outlook for further optimization of such materials.
Article
Chemistry, Multidisciplinary
Pedram Ghorbanzade, Laura C. Loaiza, Patrik Johansson
Summary: Single-ion conducting polymer electrolytes, created by plasticizing LiPSTFSI with PPO and LiTFSI, have been found to enhance ionic conductivity and modify ion conduction mechanism. This improvement is attributed to the correlation between local and macroscopic properties, enabling rational design of solid-state but pliable electrolytes.
Article
Polymer Science
Neel J. Shah, Sajjad Dadashi-Silab, Michael D. Galluzzo, Saheli Chakraborty, Whitney S. Loo, Krzysztof Matyjaszewski, Nitash P. Balsara
Summary: The study investigated the impact of salt addition on a diblock copolymer system with a negative Flory-Huggins interaction parameter, chi. It was found that ordered phases only appear under specific conditions, as predicted by ionic self-consistent field theory.
Article
Chemistry, Physical
Fangyong Yan, Kallol Mukherjee, Mark Maroncelli, Hyung J. Kim
Summary: The infrared spectra of solutions containing LiBF4 in an ionic liquid and an organic solvent are studied. The presence of LiBF4 leads to changes in the spectra, including the appearance of new bands and broadening of the IR structure. Computational analysis reveals that the motion of Li+ ions and structural changes in the solution are responsible for these spectral changes. Additionally, the molecular motions in the lower frequency regions are correlated with the spectral changes.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Energy & Fuels
Sha Tan, Zulipiya Shadike, Jizhou Li, Xuelong Wang, Yang Yang, Ruoqian Lin, Arthur Cresce, Jiangtao Hu, Adrian Hunt, Iradwikanari Waluyo, Lu Ma, Federico Monaco, Peter Cloetens, Jie Xiao, Yijin Liu, Xiao-Qing Yang, Kang Xu, Enyuan Hu
Summary: Stable cycling at an ultra-high voltage of 4.8 V can be achieved by adding an appropriate amount of lithium difluorophosphate in a common commercial electrolyte. The robust interphase formed on the cathode plays a key role in suppressing transition metal dissolution and facilitating uniform lithium distribution.
Article
Physics, Applied
P. Pal, A. Ghosh
Summary: Ionic conduction and relaxation behavior of the cubic phase of three-dimensional CsPbCl3 perovskite with a mean crystal size of 500 nm were investigated using dielectric spectroscopy. Analysis using various models showed similar ionic transport and relaxation mechanisms at different temperatures in CsPbCl3 perovskite. The results demonstrate good ionic conduction and relaxation properties in the material.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Pulak Pal, Aswini Ghosh
Summary: Ion transport and segmental dynamics have been investigated in solid-like polymer electrolytes, and a strong coupling between segmental relaxation of polymer chains and ionic transport has been observed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Anirban Ghosh, Sanjib Shyamal, Arnab Palui, Rabindra Nath Manna, Sujan Mondal, Manish Jana, Aswini Ghosh, Asim Bhaumik
Summary: Designing an efficient catalyst for sustainable energy research is challenging. The study introduces a new semiconducting zinc-thiolate framework that is rigid, stable, and porous. It demonstrates high efficiency in the photoelectrochemical water oxidation reaction.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Manoj Singh, Tufan Paul, Pulak Pal, Aditi Sahoo, Lokesh Singh Tanwar, Nisha Hiralal Makani, Aswini Ghosh, Rupak Banerjee
Summary: The emergence of lead-free metal-halide perovskites in modern-day energy research is primarily due to their competent semiconducting and optoelectronic properties, as well as their nontoxicity and improved stability in ambient operating conditions. In this article, the authors report on the single-crystal growth of a bimetallic two-dimensional layered Rb4Ag2BiBr9 and explore its dielectric, piezoelectric, and ferroelectric properties. They investigate the dielectric attributes by studying the temperature-dependent complex impedance, complex electric modulus, and AC conductivity, and analyze the ion transport and relaxation mechanisms in Rb4Ag2BiBr9. The authors also demonstrate the thermal and ambient stability of the material, as well as its piezoelectric and ferroelectric properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Indrajeet Mandal, Shweta R. Keshri, Lekhan Lodhi, Krishna K. Dey, Manasi Ghosh, Aswini Ghosh, Amarnath R. Allu
Summary: In this study, the effective influence of NaCl on the structure and ionic-conductivity of phosphate-based glass network was investigated. It was found that the addition of NaCl can enhance the ionic-conductivity of the glass and affect the distribution of alumina and phosphorus structural units.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Nisha Hiralal Makani, Aditi Sahoo, Pulak Pal, Tufan Paul, Lokesh Singh Tanwar, Manoj Singh, Aswini Ghosh, Rupak Banerjee
Summary: In this study, the dielectric properties of a two-dimensional layered perovskite Cs2PbI2Cl2 were investigated using various experimental techniques and theoretical models. It was found that the ionic conductivity of the material increases abruptly at a critical temperature, which is attributed to enhanced ionic conduction mediated by anionic vacancies.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Sayan Saha, Krishna Sundar Das, Pulak Pal, Soumyajit Hazra, Avik Ghosh, Sukhen Bala, Aswini Ghosh, Abhijit Kumar Das, Raju Mondal
Summary: The researchers successfully designed and synthesized a silver compound that exhibits excellent photocurrent generation and high proton conductivity. The crystal structure and nanoscopic metallogel of the compound induce semiconductive features, resulting in high photoresponse behavior and proton conductivity values.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Arnab Biswas, Bikash Das, Pulak Pal, Aswini Ghosh, Nitin Chattopadhyay
Summary: The research on hydrogels has been elevated in the past two decades due to the perpetual exigency for environment friendly clean energy and powerful soft electronics. Hydrogels, which amplify material properties through manipulation in structure-property relationship, have been developed by hierarchically assembling clay nanosheets and surfactant micelles. The composite and hybrid hydrogels exhibit exceptional proton conductivity and memristive function, making them promising for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Applied
Aditi Sahoo, Tufan Paul, Pulak Pal, Nisha Hiralal Makani, Aswini Ghosh, Rupak Banerjee
Summary: In this study, the dielectric, piezoelectric, and ferroelectric properties of a chiral perovskite (R-CYHEAPbI(3)) were investigated. The transport and relaxation mechanisms were analyzed using different models. The conduction mechanism was found to change during the ferroelectric-to-paraelectric phase transition. The saturation polarization and piezoelectric constant were also measured, and a chiral perovskite composite film was fabricated for energy harvesting applications.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Physical
Subir Kumar Patla, Pulak Pal, Aswini Ghosh
Summary: Supercapacitors with high energy density were fabricated by using dual redox additive-based gel polymer electrolytes (GPEs) and activated carbon (AC) electrodes. The GPEs were prepared by using poly(vinylidene fluoride-co-hexafluoropropylene) as a host polymer, adiponitrile as a plasticizer, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide as ionic liquid (IL), and diphenylamine (DPA) and copper iodide (CuI) as dual redox additives. The electrochemical performance of the SCs fabricated with the dual redox additive-based GPEs and AC electrodes was investigated, showing enhanced specific capacitance and specific energy.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Soumyajit Hazra, Radhakanta Ghosh, Arnab Palui, Aswini Ghosh, Arindam Banerjee, Arun K. Nandi
Summary: A water-soluble polymer-peptide conjugate, composed of PTMA and PBI-NH3+, was fabricated. The interaction between PTMA and PBI-NH3+ resulted in an increase of the conjugation length and changes in morphology. The hybrid material showed interesting photoluminescence properties and exhibited organic mixed ionic and electronic conductivity. The conjugate material also demonstrated enhanced photo-switching behavior and holds potential for fabricating new types of macromolecular OMIEC systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Physics, Applied
Moumita Ghosh, Pulak Pal, Tufan Paul, Soumen Maiti, Souvik Bhattacharjee, Kausik Sardar, Aditi Sahoo, Aswini Ghosh, Kalyan Kumar Chattopadhyay
Summary: The charge-carrier dynamics and relaxation properties of lead-free Cs2SnI6 perovskite were investigated using dielectric spectroscopy and electrochemical response. The research revealed the lattice structure and phonon dispersion, as well as the contributions of grain boundaries, grains, and anharmonic rattling to charge-carrier dynamics.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Multidisciplinary
Debabrata Chakraborty, Tapabrata Dam, Arindam Modak, Kamal K. Pant, Bijan Krishna Chandra, Adinath Majee, Aswini Ghosh, Asim Bhaumik
Summary: Metal-organic framework (MOF) materials have well-defined porous structures, high specific surface areas, and periodic functional groups, making them applicable in various fields. The newly reported H8L-Fe-MOF material features a nanoporous structure and crystalline framework, suitable for use as an anode material in LIBs with high thermal stability.
NEW JOURNAL OF CHEMISTRY
(2021)
