Article
Materials Science, Multidisciplinary
Chun-Hao Chang, Chia-Han Chuang, De-Yang Zhong, Jun-Cheng Lin, Chia-Chi Sung, Chun-Yao Hsu
Summary: This study focused on enhancing the optoelectronic performances of dye sensitized solar cells (DSSC) by mixing acetylacetone, graphene powder and TiO2 mesoporous. The addition of graphene and optimization of parameters led to improvements in efficiency and performance of DSSCs. Using a different substrate material also resulted in increased photovoltaic efficiency.
Article
Chemistry, Multidisciplinary
Amanpal Singh, Yogesh Kumar Saini, Anuj Kumar, Sanjeev Gautam, Dinesh Kumar, Viresh Dutta, Han-koo Lee, Jongsu Lee, Sanjay Kumar Swami
Summary: Graphene oxide (GO) nano-powder is synthesized using the modified Hummer's method and thin films are deposited using a GO water solution. The thermal reduction of GO allows for control of microstructural, electrical, and optical properties. The addition of reduced GO nano-powder to TiO2 paste significantly improves the performance of dye-sensitized solar cells (DSSCs) compared to unmodified TiO2 photoanodes.
Article
Chemistry, Physical
Yunfei Jiao, Shuaishuai Liu, Zhongjin Shen, Le Mao, Yongjie Ding, Dan Ren, Felix Thomas Eickemeyer, Lukas Pfeifer, Dapeng Cao, Wenjuan Xu, Juan Song, Baoxiu Mi, Zhiqiang Gao, Shaik M. Zakeeruddin, Wei Huang, Michael Gratzel
Summary: Heteroaromatic units are commonly used as pi-spacers for sensitizers in dye-sensitized solar cells. The type of pi-spacer strongly influences the solar to electric power conversion efficiency of organic dyes, with electron-rich pi-spacers leading to higher efficiency. Molecular engineering plays a crucial role in developing high efficiency organic dyes for DSSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Ramarajan Ramanathan, Michael Zinigrad, Dhivyaprasath Kasinathan, Ranjith Kumar Poobalan
Summary: This study focuses on synthesizing composite materials based on Zn2SnO4 as photoanodes for dye sensitized solar cells (DSSCs), aiming to improve the power conversion efficiency. The synthesized composite materials exhibit better optical and structural properties, leading to higher performance compared to the pristine material.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Zhemin Li, Qizhao Li, Chengjie Li, Yongshu Xie
Summary: Dye-sensitized solar cells (DSSCs) have the advantages of environmental friendliness, easy fabrication, and rich colors, making them promising for applications in architectural decoration and power supply for low energy devices. However, porphyrin dyes used in DSSCs still suffer from absorption defects and aggregation tendencies. In order to address these issues, various approaches have been developed to achieve panchromatic absorption and high efficiency.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Jianyong Wan, Yeshen Liu, Hongda Guo, JingJing Liang, Lvming Qiu, Yuhao Lu, Haibo Xiao
Summary: Six organic sensitizers were synthesized to improve the thermal/photo-stability and solubility while suppressing dye aggregation. The resulting devices showed higher performance due to weak or no aggregation.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Energy & Fuels
Zhihui Wang, Qiang Chen, Jin Chen, Yujie Zou, Shijie Ding, Jing Chen, Jun Yuan, Chuanle Zhu, Mao Liang
Summary: Siloles can be promising building blocks for functional materials in organic photovoltaics. Two novel organic dyes with highly conjugated TTS as n-bridge were successfully synthesized in this study, showing enhanced open-circuit voltage and potential for optimizing the regeneration process. The TTS spacer has great potential for constructing highly efficient organic sensitizers for DSSCs.
Article
Energy & Fuels
Deeksha Kharkwal, Nidhi Sharma, Saral Kumar Gupta, Chandra Mohan Singh Negi
Summary: The study found that using a co-sensitized dye as a photosensitizer can increase the power conversion efficiency of dye-sensitized solar cells, mainly due to the significant increase in open-circuit voltage and reduction in charge recombination. Impedance spectroscopy analysis showed that co-sensitized dye-based DSSC has higher charge recombination resistance and longer carrier lifetime.
Article
Materials Science, Multidisciplinary
D. Karthigaimuthu, B. Arjun Kumar, T. Elangovan, Gopal Ramalingam, Sujith Kalluri, Sambasivam Sangaraju, Salah Addin Burhan Al Omari
Summary: In this study, an innovative technique was used to produce agglomeration free and distinct metal oxide nanosheets using pigeon excreta as a surfactant and capping agent. The different characterizations and analyses explained the mechanism involved in forming these nanosheets. The metal oxides mediated by pigeon excreta showed improved photovoltaic performance compared to pure metal oxides.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Shengbo Zhu, Wei Li, Bingyang Lu, Ran Chen, Yongliang Liu, Weixing Chen, Xiaoling Niu, Wenzhi Zhang, Xinbing Chen, Zhongwei An
Summary: In this study, three organic fluorine-containing dyes were designed and synthesized, and it was found that the introduction of fluorine can significantly broaden the absorption spectra of the dyes, but does not improve the light-harvesting capability of solar cells. One of the dyes, with fluorine substitution at the 3-position, showed a relatively high open-circuit photovoltage compared to the fluorine-free dye, and when co-sensitized with other dyes, it achieved a remarkably high power conversion efficiency and long-term stability. This work suggests that judicious molecular engineering and co-sensitization are promising strategies for highly efficient and stable solar cells.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Varsha Yadav, Chandra Mohan Singh Negi, D. Kishore Kumar, Saral Kumar Gupta
Summary: This research explored low-cost and eco-friendly alternative dyes for DSSCs, analyzing their morphological, structural, and crystalline properties. DSSCs based on natural dye and fabric dye showed different efficiencies, with the natural dye-based DSSC exhibiting superior performance. The study suggests that the better morphological and crystalline properties of natural dye-based sensitizers contribute to the improved performance of DSSCs.
Article
Nanoscience & Nanotechnology
Masaaki Mitsui, Yushiro Nakagome, Yoshiki Niihori, Shota Inoue, Yutaka Fujiwara, Kenji Kobayashi
Summary: Two starburst-shaped organic chromophores were synthesized and applied to dye-sensitized solar cells. SB-08 showed better performance than SB-07, with a higher incident photon-to-current conversion efficiency and power conversion efficiency. This new architecture allows flexible modification of branches to enhance light-harvesting ability and electron transport pathways.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Ihssene Ouared, Maammar Rekis, Mohamed Trari
Summary: In this study, six new organic dyes were investigated using density functional theory (DFT). The theoretical photovoltaic properties indicated that the overall yield of the solar cell could be remarkably improved with the designed dyes, making them potential candidates as photosensitizers for dye sensitized solar cells (DSSCs). The dye bearing dioxythiophene linker showed the highest absorption maxima among the investigated dyes.
Article
Materials Science, Multidisciplinary
Dheeraj Devadiga, M. Selvakumar, Deepak Devadiga, Selvaraj Paramasivam, T. N. Ahipa, Prakasha Shetty, S. Senthil Kumar
Summary: Here, a metal-free organic dye (CCPICPB) with panchromatic absorption in the near-infrared range was synthesized. The dye's photophysical properties were studied and validated through experimental and theoretical simulation. Pristine and calcium-doped TiO2 microspheres were synthesized using a solvothermal approach. The performance of CCPICPB dye on these materials was evaluated, with the Ca-TiO2 photoanode-based device showing higher efficiency. Co-sensitization of CCPICPB dye with Ru(II) dye resulted in further efficiency improvement, attributed to improved V-OC and J(SC) due to the dye's compensatory effect and inhibition of electron recombination.
JOURNAL OF MATERIALS SCIENCE
(2023)
Review
Chemistry, Physical
Afsaneh Farokhi, Hashem Shahroosvand, Fatemeh Zisti, Melanie Pilkington, Mohammad Khaja Nazeeruddin
Summary: This comprehensive review focuses on the application of triphenylamines (TPAs), a prominent class of organic molecules, in dye-sensitized/organic solar cells. By exploring synthesis strategies for TPA derivatives, researchers have successfully improved the power conversion efficiencies of the cells and provided strong support for future commercial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Polymer Science
Mukhamed L. Keshtov, Serge A. Kuklin, Alexei R. Khokhlov, Zhiyuan Xie, Vladimir G. Alekseev, Hemraj Dahiya, Rahul Singhal, Ganesh D. Sharma
Summary: A new acceptor unit A3T was synthesized and used to design donor copolymers with different acceptor units for higher efficiency in polymer solar cells (PSCs).
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Adrien Schlachter, Gabriel Marineau-Plante, Pierre D. Harvey, Anupam Agrawal, Ganesh D. Sharma
Summary: A ternary blend consisting of a low bandgap polymer and two acceptors was used to improve the power conversion efficiency of polymer solar cells. The utilization of the high electron mobility of a fullerene acceptor and the complementary absorption spectra of all components resulted in increased light harvesting ability and overall efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Ganesh D. Sharma, Rashmirekha Pradhan, Kanupriya Khandelwal, Rahul Singhal, Wenrui Liu, Xiaozhang Zhu, Amaresh Mishra
Summary: Organic solar cells with ternary bulk heterojunction active layers composed of small molecules provide a simple and efficient approach to enhance power conversion efficiencies. In this study, all-small-molecule ternary OSCs were constructed using a medium bandgap IDT-IC, a narrow bandgap F13, and a wide bandgap C1-CN. The crystalline nature of IDT-IC induced appropriate nanoscale in the C1-CN:F13 film, resulting in a higher PCE of 15.54% compared to C1-CN:F13 (14.23%) and C1-CN:IDT-IC (6.17%).
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Energy & Fuels
Mukhamed L. L. Keshtov, Dimitry Y. Y. Shikin, Alexei R. R. Khokhlov, Ilya E. E. Ostapov, Vladimir G. G. Alekseev, Manish K. K. Singh, Ganesh D. D. Sharma
Summary: Two donor-acceptor backbone copolymers with different fused ring acceptors were synthesized and used for the preparation of polymer solar cells. The copolymer with DTNID as the acceptor showed higher dielectric constant and power conversion efficiency compared to the copolymer with DTID.
Review
Energy & Fuels
Rakesh Suthar, Hemraj Dahiya, Supravat Karak, Ganesh D. Sharma
Summary: This article presents recent advances in ternary organic solar cells, including technological interventions in material design and device performance to achieve higher power conversion efficiency. The research and development in the past decade have shown promise in low-power devices and building integrated photovoltaic applications.
Article
Chemistry, Physical
Mukhamed L. Keshtov, Dmitry Y. Godovsky, Ilya E. Ostapov, Vladimir G. Alekseev, Hemraj Dahiya, Rahul Singhal, Fang-Chung Chen, Ganesh D. Sharma
Summary: Researchers prepared a donor-acceptor conjugated polymer P(DTB-BDD) and achieved high power conversion efficiencies in solar cells by blending it with non-fullerene acceptors. By optimizing the weight ratios of the acceptors and keeping a constant amount of the donor, the performance of the solar cells can be further improved.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mukhamed L. Keshtov, Alexei R. Khokhlov, Dimitriy Y. Shikin, Vladimir Alekseev, Giriraj Chayal, Hemraj Dahiya, Manish Kumar Singh, Fang Chung Chen, Ganesh D. Sharma
Summary: A new medium bandgap non-fullerene small-molecule acceptor (IDT-TC) was designed and compared with IDT-IC acceptor in terms of optical and electrochemical properties. IDT-TC exhibited higher crystallinity and electron mobility compared to IDT-IC. In polymer solar cells, using IDT-TC as the acceptor and P as the donor, achieved a higher power conversion efficiency.
Article
Energy & Fuels
Virginia Cuesta, Maida Vartanian, Manish Kumar Singh, Rahul Singhal, Pilar de la Cruz, Ganesh D. Sharma, Fernando Langa
Summary: This study introduces a new molecule, VC11, that can function as a donor or acceptor in organic solar cells. By incorporating VC11 into a ternary active layer with PBDB-T and Y6, a higher power conversion efficiency is achieved due to cascaded energy-level alignment and fast charge transfer offered by VC11's ambipolarity.
Article
Nanoscience & Nanotechnology
Raman Rajagopalan, S. Shyam Shankar, Natarajan Balasubramaniyan, Ganesh D. Sharma
Summary: In this study, acceptor-donor-acceptor (A-D-A) type small molecules, DICTF and DRCTF, with modified terminal units, were synthesized and used as electron acceptors. The photovoltaic properties of these electron acceptors were investigated when combined with a low-band-gap BODIPY-thiophene-backboned donor material, P(BdP-HT). The P(BdP-HT):DICTF-based organic solar cells (OSCs) showed an excellent efficiency of around 11.94%, which was superior to the P(BdP-HT):DRCTF counterpart (8.78%).
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Amaresh Mishra, Ganesh D. Sharma
Summary: The development of commercially viable organic solar cells (OSCs) requires reducing the efficiency-stability-cost gap. This can be achieved by minimizing synthetic steps while maintaining molecular planarity and efficiencies achieved by fused ring acceptors (FRAs). Developing non-fused ring acceptors (NFRAs) with suitable functionalization for conformational planarity and molecular packing can be cost-effective. Although NFRAs currently have a power conversion efficiency (PCE) of around 16%, lower than FRAs' 19%, understanding their effective structural design is crucial for efficient OSC development. This article focuses on the molecular design concept for NFRAs in recent years and analyzes the approach to material design and efficiency improvement, a significant step toward technological application.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Hemraj Dahiya, Rakesh Suthar, Manish Kumar Singh, Rahul Singhal, Supravat Karak, Ganesh D. Sharma
Summary: This work focuses on the application of hydrated vanadium pentoxide (HVO) as a hole transport layer (HTL) in organic solar cells (OSCs). The simple synthesis process of HVO as the anode HTL in non-fullerene-acceptor-based binary and ternary OSCs enables a higher power conversion efficiency (PCE). The comparison experiments show that the OSCs based on ITO/HVO anode exhibit a higher PCE than those based on ITO/PEDOT:PSS anode.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Prateek Malhotra, Subhayan Biswas, Ganesh D. Sharma
Summary: Organic solar cells (OSCs) are a promising technology for renewable energy generation, and researchers are exploring ways to improve their efficiency. In this study, a directed message passing neural network (D-MPNN), a type of graph neural network (GNN), was used to predict the power conversion efficiency (PCE) of OSCs. The excellent performance of the D-MPNN model highlights its potential for surpassing the limitations of conventional fixed descriptors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Pengfei Li, Yi Wang, Zhiyong Chai, S. Shyam Shankar, Xu Liang, Haijun Xu, Ganesh D. Sharma
Summary: In this study, we synthesized and fabricated small molecule donors based on BODIPY dimer, named DI-BDP-CZ, for organic solar cells. The electrochemical research demonstrated that DI-BDP-CZ had energy levels well matched with both PC71BM and Y6. The optimized DI-BDPCZ: PC71BM and DI-BDP-CZ: Y6 based organic solar cells achieved overall power conversion efficiency of 7.63% and 12.58%, respectively.
Article
Chemistry, Physical
Kanupriya Khandelwal, S. Shyam Shankar, Prateek Malhotra, Subhayan Biswas, Abhishek Panghal, Susanta Sinha Roy, Ganesh D. Sharma
Summary: In this study, the effect of thickness on the morphology of the active layer and the resulting photovoltaic performance of semitransparent bulk heterojunction organic solar cells (OSCs) was investigated. The optimal rpm for achieving an efficient active layer morphology and improved device performance for both opaque and semitransparent devices was identified. The overall power conversion efficiencies of the optimized opaque and semitransparent OSCs were 10.39% and 7.26% respectively. The correlation between the rpm, active layer morphology, and the overall performance of the semitransparent OSCs was elucidated, providing valuable insights into optimizing devices.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kerba S. More, Harshad A. Mirgane, S. Shyam Shankar, Nirmala Niharika Bhuyan, Amaresh Mishra, Sheshanath V. Bhosale, Ganesh D. Shrama
Summary: Two coumarin-functionalized DPP derivatives, DPP-Cou and Cou-DPP-Cou, were designed, synthesized, and characterized. The absorption range of the symmetrical Cou-DPP-Cou was extended to 750 nm (E(g)(opt) = 1.67 eV), compared to 700 nm (E(g)(opt) = 1.78 eV) for the asymmetric DPP-Cou. The symmetrical conjugates also showed higher thermal stability and achieved higher power conversion efficiencies (PCE) in organic solar cells due to appropriate morphology for faster charge extraction and lower charge recombination.
ACS APPLIED ENERGY MATERIALS
(2023)
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)