Review
Chemistry, Multidisciplinary
Christopher G. Cannon, Peter A. A. Klusener, Nigel P. Brandon, Anthony R. J. Kucernak
Summary: This paper reviews organic molecules used as the redox-active electrolyte for the positive cell reaction in aqueous redox flow batteries. The key metrics to assess their performance are discussed, and a new figure of merit called the theoretical intrinsic power density is introduced. The theoretical intrinsic power densities of organic electrolytes are much higher than that of the VO2+/VO2+ couple, with TEMPO-derivatives showing the highest performance.
Article
Chemistry, Physical
Zhaohui Yang, Fei Wang, Pengyu Meng, Jiayan Luo, Chaopeng Fu
Summary: Rechargeable aluminum-ion batteries with organic positive electrode materials have attracted attention due to their advantages of design flexibility and sustainable energy storage chemistry. However, challenges including high solubility, low active center utilization, and low electrical conductivity need to be addressed. This review summarizes recent advances in the development of organic positive electrodes for Al-ion batteries, and discusses strategies to improve their performance. Challenges and future research directions towards high-performance Al/organic batteries are also discussed.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhexuan Liu, Liping Qin, Bingan Lu, Xianwen Wu, Shuquan Liang, Jiang Zhou
Summary: This Perspective provides an overview of the working mechanisms, insufficiency, optimization, and future development of aqueous Mn2+/MnO2-based batteries. The existing issues and deficiency have been analyzed, and optimization strategies have been summarized and discussed. Testing methods and performance assessment proposals are presented.
Article
Chemistry, Multidisciplinary
Shibo Sun, Liwei Fang, Hui Guo, Liping Sun, Yong Liu, Yuanhui Cheng
Summary: Researchers designed a bifunctional liquid fuel cell to produce V3.5+ electrolytes and generate power energy using formic acid and V4+ as fuels and oxidants. This method reduces the production cost of V3.5+ electrolytes by 16.3% compared to traditional electrolysis method. The fuel cell has a maximum power output of 0.276 mW cm(-2) and prepared vanadium electrolytes show similar energy conversion efficiency and capacity retention to commercial ones.
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Materials Science, Ceramics
Ganesh Koyyada, Burragoni Sravanthi Goud, Mohamed Ouladsmane, Jae Hong Kim, Nam Hai Nguyen Thi, Nam Nguyen Dang
Summary: The demand for high-energy storage supercapacitors with appropriate designs has led to the development of g-C3N4/WO3(H2O)0.33 (GCN/WO) nanostructures, which have been prepared using a simple wet impregnation process. These nanostructures show improved electrochemical storage performance compared to their individual components, with increased specific capacitance and cyclic stability. The positive synergistic effect between GCN and WO in the nanostructures contributes to their enhanced electrochemical capacitor characteristics.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Takayuki Doi, Romain Jun Taccori, Ryo Fujii, Tsuyoshi Nagashima, Takatsugu Endo, Yoshifumi Kimura, Minoru Inaba
Summary: A non-flammable and highly concentrated electrolyte solution using TFEP as the main solvent was designed to improve the safety and energy density of lithium-ion batteries significantly. By introducing a fluorinated diluent FMP, the decomposition of LiBF4 and TFEP at high potentials was successfully suppressed, leading to enhanced charge and discharge performance of LiNi0.5Mn1.5O4 electrodes.
Article
Chemistry, Physical
Kiana Amini, Amit N. N. Shocron, Matthew E. E. Suss, Michael J. J. Aziz
Summary: Redox flow batteries have the potential to provide inexpensive and widely deployable energy storage for intermittent renewable electricity. However, their commercialization is limited by high capital costs. This study summarizes the reported areal power densities for lab-scale RFBs, evaluates power optimization pathways, and identifies opportunities for developing higher power density systems.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Hongzhu Jiang, Zheng Chen, Yuanyuan Yang, Cheng Fan, Jingwen Zhao, Guanglei Cui
Summary: This review discusses the challenges, progress, and future research directions of electrolytes for dual-ion batteries (DIBs). The composition of electrolytes has a significant impact on battery performance, making the study of electrolyte properties crucial.
Article
Chemistry, Physical
Christopher James Fetrow, Cameron Carugati, Xiao-Dong Zhou, Shuya Wei
Summary: This review provides an overview of the fundamental electrochemistry and mechanisms of metal-CO2 batteries, including material selection, design considerations, electrochemical charge and discharge mechanisms, and catalyzed behaviors. Understanding the underlying electrochemistry of metal-CO2 batteries can lead to the development of battery technologies applicable to a wide range of carbon capture and energy storage applications.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Y. Ji, C. Palmer, E. E. Foley, R. Giovine, E. Yoshida, E. Sebti, A. R. Patterson, E. McFarland, R. J. Clement
Summary: The carbon byproduct from methane pyrolysis in molten salts can be used as an anode or conductive additive for secondary Li-ion and Na-ion batteries. The use of catalytic molten salt mixtures results in more graphitic carbon co-products, which exhibit the best electrochemical performance as Li-ion anodes. However, the presence of retained salt species in the carbon structure leads to reduced electrochemical activity and reversibility.
Article
Chemistry, Multidisciplinary
Zhen Su, Junbo Chen, Jennifer Stansby, Chen Jia, Tingwen Zhao, Jiaqi Tang, Yu Fang, Aditya Rawal, Junming Ho, Chuan Zhao
Summary: This study reports a hydrogen-bond disrupting electrolyte strategy to enhance the stability of proton batteries by modifying the ion solvation sheath and electrode interface. Mixing cryoprotectants with acids disrupts hydrogen bonds involving water molecules, resulting in reduced water activity and modified ion solvation sheaths. Additionally, the cryoprotectants protect the electrode surface from water. Experiment results demonstrate fast and stable proton storage even at low temperatures.
Article
Chemistry, Multidisciplinary
Ashish Raj, Satyannarayana Panchireddy, Bruno Grignard, Christophe Detrembleur, Jean-Francois Gohy
Summary: A sustainable bio-based solid-state electrolyte was developed based on carbonated soybean oil, which exhibited good ion conductivity and electrochemical stability at both room temperature and high temperature, and showed promising performance in lithium batteries.
Article
Chemistry, Physical
Yue Zhang, Dan Manaig, Donald J. Freschi, Jian Liu
Summary: Rechargeable tellurium (Te)-based batteries are promising energy storage devices with high volumetric energy density, but face challenges in terms of electrochemistry and overall performance. Research focuses on understanding the role of Te structure, carbon host chemistry, electrolytes, and addressing issues like Te pulverization and parasitic effects to achieve reversible Te phase transitions. Additional studies are conducted on novel metal-Te based batteries to compare performance data and explore potential research directions for the future.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhaohui Yang, Xiaobing Huang, Pengyu Meng, Min Jiang, Yibo Wang, Zhenpeng Yao, Jiao Zhang, Baode Sun, Chaopeng Fu
Summary: Aluminum-ion batteries (AIBs) are a promising candidate for large-scale energy storage due to their abundant reserves, low cost, good safety, and high theoretical capacity. However, AIBs with inorganic positive electrodes still face challenges such as slow kinetics and structural collapse. In this study, a novel p-type poly(vinylbenzyl-N-phenoxazine) (PVBPX) positive electrode is proposed for AIBs. PVBPX demonstrates a high capacity and an amazing ultra-long lifetime of 50000 cycles due to its dual active sites, expanded pi-conjugated construction, insolubility, and anionic redox chemistry without bond rearrangement. The charge storage mechanism involves the reversible coordination/dissociation of AlCl4- ions with the N and O sites in PVBPX.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
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)