Article
Chemistry, Physical
Wang Lin, Mengyu Zhu, You Fan, Huibo Wang, Guangjian Tao, Maofeng Ding, Na Liu, Hang Yang, Jiang Wu, Jianhua Fang, Yuxin Tang
Summary: Lithium-ion batteries experience performance degradation in low temperature due to decreased lithium-ion conductivity and sluggish charge transfer process. Rational design of low-temperature electrolyte is crucial for improving the low-temperature performance of lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Lan Xia, Mingming Chen, Fu Wang, He Miao, Jinliang Yuan
Summary: This study proposes a strategy of using partially fluorinated linear carboxylate esters (FLCEs) as co-solvents to prepare high voltage, nonflammable electrolytes. The study investigates the physical, chemical, and electrochemical properties of FLCEs solvents, as well as the electrochemical performances of high-voltage batteries using FLCEs-containing electrolytes. The results show that FLCEs have limited solubility for lithium salt LiPF6 and need to be mixed with other solvents to form stable electrolytes. FLCEs, particularly F-1, show promising potential as co-solvents for high voltage lithium-ion battery electrolytes with enhanced safety and longevity.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Jiawei Wu, Jing Chen, Xiaodong Wang, Anan Zhou, Zhenglong Yang
Summary: This paper introduces a novel in-situ crosslinking structure to promote a network of SiO2 nanowires, improving the performance of solid-state electrolytes. The optimized sample exhibits high conductivity, wide electrochemical window, and ideal shape stability under high temperatures.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Sunwoo Kim, Yejin Gim, Wonho Lee
Summary: The cold sintering process (CSP) is a promising method for synthesizing oxide-based electrolytes at low temperature and short processing time. In this study, high boiling solvents of DMF and DMSO were introduced as transient solvents to develop composite electrolytes with good ionic conductivity and thermal stability.
Review
Polymer Science
Nacer Badi, Azemtsop Manfo Theodore, Saleh A. Alghamdi, Hatem A. Al-Aoh, Abderrahim Lakhouit, Pramod K. Singh, Mohd Nor Faiz Norrrahim, Gaurav Nath
Summary: This study discusses the impact of different polymer electrolytes on the performance of lithium-ion batteries, emphasizing the need for an excellent electrolyte to possess multiple properties (such as Li+ diffusion, resistance, capacity, etc.) and pointing out that a single electrolyte may not be sufficient to meet requirements.
Article
Chemistry, Physical
Ping Xie, Xuejie Wang, Zibao Qian, Tao Liu, Jiaguo Yu, Liuyang Zhang
Summary: The volume expansion and poor conductivity of FeS as a sodium-ion battery anode can be alleviated by surface decoration, improving its sodium storage performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Yin Quan, Shumin Wu, Kerong Yang, Ling Hu, Xiaojuan Zhang, Xinyi Hu, Hongcheng Liang, Shiyou Li
Summary: This review summarizes the effects of solvation complexes on the composition of the electrode/electrolyte interface (EEI) film and the Li+ desolvation process from the perspective of the electrolyte solvation complex. It further clarifies the internal mechanism of the electrolyte composition controlling solvation chemistry. Finally, this review puts forward some cutting-edge views that are of great significance for future guidance in improving the performance of lithium-ion batteries, combined with doubtful points that are not comprehensively considered in the regulation of solvated complexes.
Article
Chemistry, Physical
Kudakwashe Chayambuka, Ruth Cardinaels, Kevin L. Gering, L. Raijmakers, Grietus Mulder, Dmitri L. Danilov, Peter H. L. Notten
Summary: The study investigated the viscosity and conductivity characteristics of sodium-ion battery electrolyte using experimental and modeling approaches, revealing the optimal binary electrolyte for SIBs. Experimental results showed that the relationship between conductivity and viscosity follows a simple Stokes' law, and the stability of electrolytes on hard carbon was found to be correlated with the preferential ion solvation of EC.
JOURNAL OF POWER SOURCES
(2021)
Review
Engineering, Chemical
Q. Yang, A. Wang, J. Luo, W. Tang
Summary: Solid polymer electrolytes (SPEs) have attracted widespread attention due to their superior safety and processability. However, their low ionic conductivity poses a major obstacle to practical applications. This article reviews recent advances in improving the ionic conductivity of SPEs by increasing charge carriers and optimizing transport paths.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Electrochemistry
Hai Lu, Fubao Zeng, Long He, Rui Feng, Yan Yuan, Zhiyun Zhang, Huan Liu, Huiling Du, Bin Zheng
Summary: A series of designed fluorinated electrolytes were developed, which greatly improved the performance of high-voltage lithium second batteries. The electrolytes enhanced the reversible capacity, cycle and rate performance of the batteries by improving durability, suppressing parasitic reactions and preventing anode corrosion.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
By Linge Li, Haifeng Tu, Jian Wang, Mingchao Wang, Wanfei Li, Xiang Li, Fangmin Ye, Qinghua Guan, Fengyi Zhu, Yupeng Zhang, Yuzhen Hu, Cheng Yan, Hongzhen Lin, Meinan Liu
Summary: By designing a carbon bridged metal-organic framework (MOF@CC), the dissociation kinetics of Li+-solvents is catalyzed and stimulated, leading to rapid conversion kinetics of sulfur species in lithium-sulfur batteries. The bridged MOF@CC provides a special transport channel for accelerating Li+ transport and the C-N bridge enhances electron exchange, promoting catalytic efficiency and inhibiting polysulfide aggregation. The modified separators lead to high reversible capability, capacity retention, and high-rate performance of Li/S batteries. These results demonstrate the efficiency of catalyzing desolvation for fast Li+ transport kinetics and polysulfide conversion.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Manuela Ferreira, Robert Schmidt, Fan Xu, Sanaz Ketabi, Mei Cai, Yingxi Zhu
Summary: Hybrid ceramic-polymer membranes have many advantages, but the incompatibility between inorganic ceramics and organic polymers remains a challenge. This study investigated the interaction between polydopamine-based polymer and both inorganic ceramic and organic electrolytes, improving their interfacial binding and enhancing the material's processability and ionic conductivity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sha Tan, Undugodage Nuwanthi Dilhari Rodrigo, Zulipiya Shadike, Brett Lucht, Kang Xu, Chunsheng Wang, Xiao-Qing Yang, Enyuan Hu
Summary: A novel electrolyte system with improved low-temperature performance for lithium-ion batteries has been developed by utilizing isoxazole as the main solvent, resulting in significantly higher ionic conductivity and reversible capacity at -20 degrees C.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Hao Jia, Ju-Myung Kim, Peiyuan Gao, Yaobin Xu, Mark H. Engelhard, Bethany E. Matthews, Chongmin Wang, Wu Xu
Summary: This study systematically investigates and compares localized high-concentration electrolytes (LHCEs) based on five different solvents in lithium-ion batteries (LIBs). The unique solvation structure of LHCEs facilitates the formation of solid electrolyte interphase (SEI) on graphite anode, enabling previously incompatible solvents to achieve reversible lithiation/delithiation. The study also reveals that the long-term cyclability of LIBs can be improved by introducing additives into LHCEs, which results in effective SEIs and cathode electrolyte interphases (CEIs).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Qingtao Wang, Xuefang Ma, Qian Liu, Dongfei Sun, Xiaozhong Zhou
Summary: Halide solid electrolyte is a promising family of solid electrolytes due to its easy preparation and high ionic conductivity. This study focuses on F doping to prepare Li3InCl5.8F0.2 solid electrolyte, which improves both the ionic conductivity and air stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Lin Ma, Travis P. Pollard, Yong Zhang, Marshall A. Schroeder, Michael S. Ding, Arthur V. Cresce, Ruimin Sun, David R. Baker, Brett A. Helms, Edward J. Maginn, Chunsheng Wang, Oleg Borodin, Kang Xu
Summary: This study demonstrates remarkable improvements in zinc reversibility in aqueous electrolytes through the use of phosphonium-based cations, particularly with ligands containing an ether linkage. The unique interphase chemistry from phosphonium and its functionalities are identified as key factors in dictating reversible zinc chemistry, leading to excellent full cell performance with high coulombic efficiency and dendrite-free zinc plating/stripping.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Hansen Wang, Sang Cheol Kim, Tomas Rojas, Yangying Zhu, Yanbin Li, Lin Ma, Kang Xu, Anh T. Ngo, Yi Cui
Summary: This study reveals the significant contribution of entropy change during the Li-ion desolvation process to the measured Li/Li+ electrode potential temperature coefficients. Relationships between electrode potential TCs and Li-ion solvation structures have been established and validated by ab initio molecular dynamics simulations, providing valuable insights for designing future electrolytes for Li-ion/Li metal batteries.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Sheng S. Zhang, Lin Ma, Jan L. Allen, Jeffrey A. Read
Summary: The plating of Li on the graphite anode and its reaction with electrolyte solvents are the key reasons for the performance degradation of Li-ion batteries during fast-charging. Adjusting the particle size of graphite can reduce the damage to the solid electrolyte interface, but it does not significantly improve the charging rate capability of the batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Jan L. Allen, Bria A. Crear, Rishav Choudhury, Michael J. Wang, Dat T. Tran, Lin Ma, Philip M. Piccoli, Jeff Sakamoto, Jeff Wolfenstine
Summary: Through the preparation of Li+ stuffed spinel-structured materials, this study demonstrates their capability to achieve fast Li+ ion conduction and their potential for enabling a single-phase fully solid electrode without interphase impedance.
Article
Nanoscience & Nanotechnology
Longsheng Cao, Dan Li, Travis Pollard, Tao Deng, Bao Zhang, Chongyin Yang, Long Chen, Jenel Vatamanu, Enyuan Hu, Matt J. Hourwitz, Lin Ma, Michael Ding, Qin Li, Singyuk Hou, Karen Gaskell, John T. Fourkas, Xiao-Qing Yang, Kang Xu, Oleg Borodin, Chunsheng Wang
Summary: The study introduces an aqueous zinc battery with a solid-electrolyte interphase that enables excellent performance in various tests, demonstrating its potential for practical applications in energy storage.
NATURE NANOTECHNOLOGY
(2021)
Review
Chemistry, Physical
Marshall A. Schroeder, Lin Ma, Glenn Pastel, Kang Xu
Summary: The commercial prospects for multivalent metal-ion batteries are still unclear due to fundamental scientific questions and engineering challenges. Recent progress in understanding capacity contributions and mechanisms for different charge carriers highlights the need for further research in this area. Addressing challenges such as cell balancing and increasing metal anode utilization will be crucial for realizing practical multivalent metal-ion batteries.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Lin Ma, Min Li, Satoshi Komasa, Sifan Yan, Yuanyuan Yang, Mariko Nishizaki, Liji Chen, Yuhao Zeng, Xin Wang, Ei Yamamoto, Shigeki Hontsu, Yoshiya Hashimoto, Joji Okazaki
Summary: This study improved the biocompatibility and bone bonding ability of titanium dental implants by using sandblasting as a pretreatment method and applying a hydroxyapatite (HA) coating. The HA coating, with nanorod-like morphology, successfully increased cell attachment but did not enhance cell proliferation.
Article
Materials Science, Multidisciplinary
Janet S. Ho, Oleg A. Borodin, Michael S. Ding, Lin Ma, Marshall A. Schroeder, Glenn R. Pastel, Kang Xu
Summary: In this study, impedance spectroscopy was used to investigate the effect of concentration on the lithium-ion transference number and compare two electrolytes, LiFSI in SL and LiTFSI in G4. The results showed that the transference number of Li+ in the SL system was significantly higher and increased with concentration, while the G4 system showed the opposite trend. This difference can be attributed to the formation of a liquid structure in the SL system, which facilitates cation-hopping diffusion, while the G4 system is dominated by solvation cages.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Lin Ma, Jenel Vatamanu, Nathan T. Hahn, Travis P. Pollard, Oleg Borodin, Valeri Petkov, Marshall A. Schroeder, Yang Ren, Michael S. Ding, Chao Luo, Jan L. Allen, Chunsheng Wang, Kang Xu
Summary: Research shows that using methanol as an electrolyte solvent in rechargeable zinc metal batteries improves performance and stability, effectively solving issues in the battery, and has good cycle life at extreme temperatures.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Editorial Material
Green & Sustainable Science & Technology
Vadim Shipitsyn, Lin Ma
Summary: A safe aqueous electrolyte design with hybrid salts and solvents enables the reversible performance of a zinc metal anode under practical operational conditions, which is crucial for the future adoption of sustainable battery technologies.
NATURE SUSTAINABILITY
(2023)
Article
Electrochemistry
Vadim Shipitsyn, Rishivandhiga Jayakumar, Wenhua Zuo, Wenbin Yin, Evan Huber, Lin Ma
Summary: The effects of fluoroethylene carbonate (FEC) electrolyte additive on the reactivity of charged sodium ion electrode/electrolyte at elevated temperatures were investigated. It was found that the addition of FEC can extend the cell lifetime without significantly affecting the reactivity of sodium-ion electrode. However, FEC has an obvious effect on the reactivity between hard carbon and electrolytes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Review
Chemistry, Physical
Rishivandhiga Jayakumar, Daniel M. Harrison, Jun Xu, Arun Vishnu Suresh Babu, Chao Luo, Lin Ma
Summary: Despite extensive research efforts, fundamental scientific questions still obscure the commercial prospects of aqueous rechargeable zinc metal batteries (RZMBs), especially regarding the properties and behaviors of the electrode-electrolyte interphase. In this review, a comprehensive overview is provided on the formation mechanisms and characteristics of the solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI) in aqueous RZMBs. State-of-the-art techniques for characterizing the SEI/CEI are summarized to reveal the correlation between the interphases' functionalities and electrochemical performances. Future research directions exploring the evolution of aqueous SEI/CEI with pH and temperature, as well as studying SEI/CEI for high-energy-density and long-lifetime RZMBs, are proposed.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Green & Sustainable Science & Technology
Lin Ma, Travis P. Pollard, Yong Zhang, Marshall A. Schroeder, Xiaoming Ren, Kee Sung Han, Michael S. Ding, Arthur V. Cresce, Terrill B. Atwater, Julian Mars, Longsheng Cao, Hans-Georg Steinru, Karl T. Mueller, Michael F. Toney, Matt Hourwitz, John T. Fourkas, Edward J. Maginn, Chunsheng Wang, Oleg Borodin, Kang Xu
Summary: This study demonstrates that adding an asymmetric alkylammonium cation, Me3EtN-TFSI, into a traditional aqueous electrolyte can improve the reversibility of zinc anodes. Performance improvements are attributed to the formation of interphasial chemistries, including ZnF2, ZnCO3, and fluoro-polymeric species, especially when combined with CO2. By tailoring the zinc interphase, the electrolyte exhibited excellent stability in full cells.
Article
Chemistry, Multidisciplinary
Glenn R. Pastel, Ying Chen, Travis P. Pollard, Marshall A. Schroeder, Mark E. Bowden, Allen Zheng, Nathan T. Hahn, Lin Ma, Vijayakumar Murugesan, Janet Ho, Mounesha Garaga, Oleg Borodin, Karl Mueller, Steven Greenbaum, Kang Xu
Summary: This study provides a rigorous examination of aqueous aluminum electrolytes and reveals a dynamic solvation structure around Al3+ cations. However, practical concerns related to the corrosiveness of acidic solutions and the inadequate reductive stability of the proposed electrolytes limit the feasibility of rechargeable aqueous aluminum batteries.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zhou Yu, Taylor R. Juran, Xinyi Liu, Kee Sung Han, Hui Wang, Karl T. Mueller, Lin Ma, Kang Xu, Tao Li, Larry A. Curtiss, Lei Cheng
Summary: Through various simulations and experiments, the study investigates the solvation structure and ion dynamics of magnesium bis(trifluoromethanesulfonyl)imide aqueous electrolyte at different concentrations. The research finds that the first solvation shell of an Mg2+ ion is composed of six water molecules and the ion dynamics and diffusion coefficients are mainly influenced by the formation of ion complexes.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
