Article
Chemistry, Physical
M. C. Morant-Minana, L. Fernandez-Diaz, G. Liendo, J. Blanco, S. Martin-Fuentes, M. Armand, L. Otaegui, A. Villaverde
Summary: Coulombic efficiency is a critical battery parameter, and a value lower than 98% indicates significant loss in battery performance. This study reveals that the slurry mixing time of PEO-based composite cathodes directly affects the loss in coulombic efficiency during cycling stability. The variations are primarily related to the viscosity of the slurry and the molecular weight of the polymer. Adjusting these parameters is crucial in obtaining optimal composite electrodes.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Anarghya Dinesh, Mylarapattana Shankaranarayana Anantha, Mysore Sridhara Santosh, Murugesan Geetha Priya, Krishna Venkatesh, Kumara Swamy Yogesh Kumar, Madihalli Srinivas Raghu, Handanahalli Basavarajaiah Muralidhara
Summary: Iron flow batteries are attracting attention due to their economic feasibility and environmentally friendly electrolytes. The design of suitable electrode and optimization of electrolyte composition play a vital role in enhancing the performance of electrochemical energy storage devices. In this study, WO3 nanoparticles were used to modify graphite felt electrodes for IRFB applications, resulting in improved electrochemical performance by adjusting the loading mass of electrochemically active material.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
Dongmei Zhuang, Xianli Huang, Zhihui Chen, Haowen Wu, Lei Sheng, Manman Zhao, Yaozong Bai, Gaojun Liu, Hairong Xue, Tao Wang, Yonggang Chen, Jianping He
Summary: This study utilizes a Polyethersulfone (PES) film to construct a composite lithium anode, solving the dendrite problem and low Coulombic efficiency of lithium anode. The PES film improves the lithiophilicity of the anode and enables the formation of a uniform nano-columnar lithium layer, even at high current density. The PES film also enhances the migration speed of lithium ion and reduces dendrite formation, resulting in improved overall performance of the lithium anode.
ELECTROCHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Raoof Rabiee, Seyed Morteza Zamir, Mahsa Sedighi
Summary: This study assessed the performance of a three-chamber microbial desalination cell (MDC) in removing salt and degrading phenol. The use of a bio-cathode in the MDC significantly improved power density, desalination efficiency, and COD removal. The bio-cathode also effectively degraded phenol within 7 hours. These findings highlight the potential of bio-cathodes in enhancing MDC performance for the degradation of hazardous compounds.
BIOELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Aparna Paul, Prakas Samanta, Haradhan Kolya, Chun-Won Kang, Naresh Chandra Murmu, Tapas Kuila
Summary: Development of asymmetric supercapacitor devices with a battery type positive electrode and an electrochemical double layer capacitance (EDLC) type negative electrode material enhances energy density. This study focuses on improving the energy density by tailoring the capacitance of the electrode materials. The use of manganese-doped Ni sulfide-Sn sulfide/reduced graphene oxide (rGO) composite and manganese sulfide/rGO composite as positive and negative electrode materials, respectively, results in specific capacitance values of around 810 F/g and 390 F/g at 2 A/g current density. The device exhibits a high energy density of approximately 50.37 Wh/kg at a power density of 1086 W/kg, with a retention of around 85% in the original specific capacitance after 10,000 galvanostatic charge-discharge cycles.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Naiteng Wu, Jinke Shen, Kai Yong, Chengqian Chen, Jian Li, Yi Xie, Donglei Guo, Guilong Liu, Jin Li, Ang Cao, Xianming Liu, Hongyu Mi, Hao Wu
Summary: A hollow slender carambola-like Li0.43FeO1.51 with Fe vacancies is proposed, which exhibits remarkably improved initial coulombic efficiency (86.78%) and cyclic stability for lithium-storage. The optimized lithium iron oxide anode materials demonstrate high-rate performance (357 mAh g(-1) at 5 A g(-1)) and superior cycling stability (884 mAh g(-1) after 500 cycles at 0.5 A g(-1)). The improved electrochemical performances can be attributed to the synergy of structural characteristics and Fe vacancy engineering.
Review
Engineering, Environmental
Rahul Gautam, Jagdeep K. Nayak, Neil V. Ress, Robert Steinberger-Wilckens, Uttam Kumar Ghosh
Summary: Microbial electrolysis cell (MEC) is a sustainable bio-electrochemical system for producing clean biohydrogen. This review discusses the principle, components, and operational parameters of MEC, as well as the types and advantages of MECs. It also covers important aspects and factors influencing MEC performance, and highlights the need and challenges for future development. The review aims to provide a fundamental understanding of MEC technology for further large-scale applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Haodong Liu, John Holoubek, Hongyao Zhou, Amanda Chen, Naijen Chang, Zhaohui Wu, Sicen Yu, Qizhang Yan, Xing Xing, Yejing Li, Tod A. Pascal, Ping Liu
Summary: By designing a highly concentrated salt/ether electrolyte, the coulombic efficiency of lithium metal anode cycling was significantly increased, leading to long-life rechargeable lithium batteries. The electrolyte demonstrated fast-charging ability with high cathode loadings and compatibility with low-cost, high-capacity SPAN cathode.
Article
Chemistry, Physical
Qiao Cu, Chaoqun Shang, Guofu Zhou, Xin Wang
Summary: Cu2-xSe@C@NCNFs, as a freestanding anode for sodium storage, shows excellent electrochemical performance with features of inhibiting Cu2-xSe aggregation and structural collapse, enhancing electrical conductivity, improving specific capacity and electrochemical reaction kinetics.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jian Yu, Juping You, Piet N. L. Lens, Lichao Lu, Yaxue He, Zhenyi Ji, Jianmeng Chen, Zhuowei Cheng, Dongzhi Chen
Summary: By introducing silicone oil into microbial fuel cells (MFC) as a non-aqueous phase (NAP) medium, a two-phase partitioning microbial fuel cell (TPPMFC) was constructed to enhance the mass transfer of hydrophobic volatile organic sulfur compounds (VOSCs). The removal efficiency of propanethiol (PT) in TPPMFC increased by 11-20% compared to single-phase MFC, and the coulombic efficiency of TPPMFC was 4.32-2.68 times higher. The addition of NAP improved the content of outer membrane cytochrome-c and NADH dehydrogenase activity, and upregulated genes related to sulfur metabolism, energy generation, and amino acid synthesis.
Article
Engineering, Environmental
Yu Hu, Li Zhou, Jia Zhu, Jingsi Gao
Summary: This study investigated the removal of polyamide microplastics from wastewater using electrocoagulation. The combination of iron anode and aluminum cathode (Fe-Al) exhibited the highest removal efficiency. The removal efficiency of microplastics increased with higher applied voltage and electrolyte concentration. The optimized conditions for polyamide removal were using Fe-Al electrodes, with a plate spacing of 2.5 cm, an applied voltage of 10 V, an initial pH of 7, and an electrolyte concentration of 0.02 mol/L. This study highlights the potential of electrocoagulation for microplastics removal and provides insights for operational parameter optimization.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Energy & Fuels
E. Zhang, Cheng Xu, Sheng Wang, Qionglin Shi, Yi Zhang, Haomiao Li, Kangli Wang, Kai Jiang
Summary: Liquid metal batteries have the potential to be a cost-effective solution for grid-scale energy storage. This study investigates the effect of parameter consistency on the evolution of battery pack capacity and analyzes the relationship between coulombic efficiency consistency and capacity retention rate.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Nutthaphon Phattharasupakun, Marc M. E. Cormier, Erin Lyle, Eniko Zsoldos, Aaron Liu, Chenxi Geng, Yulong Liu, Hongyang Li, Montree Sawangphruk, J. R. Dahn
Summary: The study found that the amount of Ni in the Li layer significantly affects the diffusion coefficient of Li in Li-deficient LNO materials, with higher Ni content leading to poorer kinetic properties.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Takumi Hasegawa, Daisuke Mori, Sou Taminato, Yasuo Takeda, Osamu Yamamoto, Nobuyuki Imanishi
Summary: Rechargeable lithium metal batteries (RLMBs) have double the specific energy density of conventional lithium-ion batteries, making them a promising next-generation battery option for electric vehicles. However, commercialization has been hindered by issues such as low coulombic efficiency and lithium dendrite formation. This study proposes a new method to determine the coulombic efficiency of lithium deposition and stripping, using a limited amount of electrolyte in a Li/electrolyte/Li cell.
Article
Engineering, Environmental
Somdipta Bagchi, Manaswini Behera
Summary: The study shows that the addition of chloroform can effectively suppress methane production in MFCs and improve the performance of the cells. MFCs with chloroform dosages exhibited higher open circuit voltages, peak power densities, lower internal resistance, and higher coulombic efficiencies compared to the control reactors.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
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
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)