Article
Chemistry, Multidisciplinary
Xinghui Liang, Hun Kim, Hun-Gi Jung, Yang-Kook Sun
Summary: A Li-substituted, tunnel/spinel heterostructured cathode has been successfully synthesized in this study, with Li dopant acting as a pillar to inhibit unfavorable multiphase transformation and provide 3D Na+ diffusion channels for improved sodium storage performance and redox reaction kinetics.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Hsiu-Fen Lin, Ya-Ru Tsai, Chieh-Hsun Cheng, Si-Ting Cheng, De-Zhen Chen, Nian-Ying Wu
Summary: The study investigates the relationship between synthesis conditions using the coprecipitation method and the structural/electrochemical properties of LiCoMnO4. Doping with F element enhances the electrochemical performance of the material.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Bianzheng You, Jiping Sun, Yu Jing, Guochun Yan, Huajun Guo, Zhixing Wang, Ding Wang, Wenjie Peng, Qihou Li, Jiexi Wang
Summary: A one-step spray pyrolysis method was developed to prepare high-performance NCM811 cathode materials with folded morphology and excellent cyclic retentions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Bianzheng You, Jiping Sun, Yu Jing, Guochun Yan, Huajun Guo, Zhixing Wang, Ding Wang, Wenjie Peng, Qihou Li, Jiexi Wang
Summary: A new one-step spray pyrolysis method is proposed to prepare high-performance NCM811 cathode materials by synthesizing lithium-contained precursors in which all elements are well distributed at a molecular level. Precursors with folded morphology and exceptional uniformity are obtained at a low pyrolysis temperature of 300 degrees C. The final products exhibit excellent cyclic retentions of 94.6% and 88.8% after 100 and 200 cycles at 1 C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Mengchun Pei, Zhiqiang Qi, Yuandong Wu, Dajiang Mei, Shaoguo Wen
Summary: A copper-doped lithium-ion battery anode material Cu0.5Ni0.5Co2O4 was successfully synthesized through hydrothermal synthesis and high-temperature calcination, with the assistance of metal-organic framework. The resulting material exhibited excellent electrochemical performance and high specific capacities, thanks to its unique structural features and ability to alleviate volume expansion issues during charge/discharge processes.
Article
Engineering, Environmental
Fanjun Kong, Guikai Zhang, Dajun Wu, Fei Sun, Shi Tao, Shengqi Chu, Bin Qian, Wangsheng Chu, Li Song
Summary: This study investigates the structural change of high-voltage spinel LiNi0.5Mn1.5O4 (LNMO) cathodes under a wide voltage range. It reveals a complex phase transformation process during deep discharge, resulting in structural distortion and capacity fading. These findings provide valuable insights into the performance degradation mechanism of spinel cathodes, contributing to the design of high-performance cathode materials for advanced lithium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
ChanQin Duan, Kanghui Tian, Xinglong Li, Dan Wang, Hongyu Sun, Runguo Zheng, Zhiyuan Wang, Yanguo Liu
Summary: This study synthesized high-entropy oxides with a spinel structure using a solid phase method and investigated their structure evolution and performance as electrode materials for lithium-ion batteries. The results showed that the high-entropy oxides displayed excellent cyclic stability and rate capability, with the incorporation of lithium contributing to the stabilization effect and improved lithium storage performances. The study provides a new strategy for designing high-entropy energy-storage materials and contributes to understanding the storage mechanism of HEOs.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
Shuangying Wei, Daniele Di Lecce, Jusef Hassoun
Summary: The LiNi0.35Cu0.1Mn1.45Fe0.1O4 spinel cathode, utilizing a multi-metal approach, exhibits good reversible capacity and cycle stability at high temperatures, showing potential for practical application in lithium batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Environmental
Jang Min Choi, Jae Seob Lee, Jung Sang Cho
Summary: A one-pot synthetic strategy was developed for the fabrication of sea urchin-like hollow microspheres comprising MoOx nanorods attached via N-doped C. The strategy utilized diethylenetriamine as a key starting material for the formation of MoOx nanorods constituting the hollow shell. The resulting nanostructure exhibited superior cycling performance as an anode for Li-ion batteries, with a discharge capacity of 794 mA h g(-1) after 400 cycles at 0.2 A g(-1) and low decay rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Mihaela-Ramona Buga, Adnana Alina Spinu-Zaulet, Cosmin Giorgian Ungureanu, Raul-Augustin Mitran, Eugeniu Vasile, Mihaela Florea, Florentina Neatu
Summary: Porous silica-based materials show promise as an alternative to graphite anodes for Li-ion batteries, but face challenges such as low coulombic efficiency and irreversible capacity losses. The main strategy to address these challenges is the preparation of carbon-coated SiO2 composites, where the carbon thin layer effectively reduces interfacial impedance.
Article
Chemistry, Physical
Zhanjun Chen, Zhuohua Li, Yangxi Peng, Tao Wang, Hongbin Zhong, Chuanyue Hu, Ruirui Zhao
Summary: In this study, the relationship between the crystal geometry of LNMO materials and their electrochemical properties was investigated. It was found that LNMO-HP exhibited better rate capabilities, while LNMO-OH had superior cycling performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Zhanjun Chen, Zhuohua Li, Yangxi Peng, Tao Wang, Hongbin Zhong, Chuanyue Hu, Ruirui Zhao
Summary: The crystalline geometry of LNMO cathodes has a significant impact on their electrochemical properties, with LNMO-HP showing better rate capabilities but inferior cycling performance compared to LNMO-OH.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Multidisciplinary Sciences
Qinhao Shi, Ruijuan Qi, Xiaochen Feng, Jing Wang, Yong Li, Zhenpeng Yao, Xuan Wang, Qianqian Li, Xionggang Lu, Jiujun Zhang, Yufeng Zhao
Summary: The authors propose a method to improve the performance of P2-type sodium metal oxide cathode materials by niobium doping, and demonstrate their high-efficiency energy storage performance at different temperatures through experiments.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Gopalu Karunakaran, Govindhan Maduraiveeran, Evgeny Kolesnikov, Suresh Kannan Balasingam, Denis Kuznetsov, Manab Kundu
Summary: The novel hollow-structured Cu0.4Zn0.6Fe2O4 porous negative electrode material demonstrates excellent lithium-ion battery performance with high specific capacity, outstanding rate capability, and long-term cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Gulnur Kalimuldina, Izumi Taniguchi
Summary: The study demonstrates the outstanding cycling performance of sulfur-rich CuS1+x cathode material obtained by one-step spray pyrolysis. Increasing sulfur content and adding a small amount of carbon significantly enhance the discharge capacity of the material.
Article
Chemistry, Physical
Wei Pang, Bing Shao, Xin Chen, Quan-Xue Gu, Fu-Jie Yang, Shixiong Li, Jin Huang
Summary: By replacing the organic group of metal-organic nanosheets electrocatalyst, the catalytic performance of OER can be regulated, reducing the overpotential and outperforming commercial catalyst RuO2. Density functional theory (DFT) and electron localization function (ELF) suggest that the type of ligands group can modulate the electronic structure of metal catalytic center, affecting the electrocatalytic activity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yu-Sheng Hsiao, Cai-Wan Chang-Jian, Huei Chu Weng, Han-Hsin Chiang, Cheng-Zhang Lu, Wei Kong Pang, Vanessa K. Peterson, Xian-Che Jiang, Po-I Wu, Chih-Ping Cheng, Jen-Hsien Huang
Summary: By selectively doping W6+ ions into TiNb2O7 lattice, the electronic and ionic conductivity of the material was improved, leading to enhanced energy storage performance.
APPLIED SURFACE SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Huibo Wang, De Ning, Litong Wang, Heng Li, Qingyuan Li, Mingzheng Ge, Junyan Zou, Shi Chen, Huaiyu Shao, Yuekun Lai, Yanyan Zhang, Guichuan Xing, Wei Kong Pang, Yuxin Tang
Summary: This review highlights the recent advances in the real-time investigation of lithium-ion batteries using neutron techniques. Neutron scattering, with its unique advantages, provides valuable insights into the battery mechanisms. Various neutron-based techniques have been applied in different scales and battery components.
Article
Chemistry, Multidisciplinary
Gemeng Liang, Emilia Olsson, Jinshuo Zou, Zhibin Wu, Jingxi Li, Cheng-Zhang Lu, Anita M. D'Angelo, Bernt Johannessen, Lars Thomsen, Bruce Cowie, Vanessa K. Peterson, Qiong Cai, Wei Kong Pang, Zaiping Guo
Summary: By introducing strong 4s-2p orbital hybridization, a robust and durable oxygen framework is created to enhance the stability and capacity retention of cathode materials for lithium-ion batteries. This orbital-focused engineering approach can be applied to modify materials of other electrodes as well.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Jia-Yang Li, Hai-Yan Hu, Li-Feng Zhou, Hong-Wei Li, Yao-Jie Lei, Wei-Hong Lai, Ya-Meng Fan, Yan-Fang Zhu, Germanas Peleckis, Shuang-Qiang Chen, Wei-Kong Pang, Jian Peng, Jia-Zhao Wang, Shi-Xue Dou, Shu-Lei Chou, Yao Xiao
Summary: By using the concept of surface lattice-matched engineering, a spinel coating P2/P3 heterostructure cathode material is designed with enhanced air stability, rate, and cycle performance. The surface spinel phase plays a vital role in preventing the ingress of water molecules, improving transport kinetics, and enhancing structural integrity for NaxTMO2 cathodes. The concept of surface lattice-matched engineering based on in situ spinel interfacial reconstruction will be helpful for designing new ultra-stable cathode materials for high-performance sodium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shiyong Chu, Duho Kim, Gwanghyeon Choi, Chunchen Zhang, Haoyu Li, Wei Kong Pang, Yameng Fan, Anita M. M. D'Angelo, Shaohua Guo, Haoshen Zhou
Summary: Cation migration, especially of transition metals (TMs), in layered cathodes of sodium-ion batteries (SIBs) has been a significant issue, resulting in electrochemical degradation. By investigating the migration mechanism in a typical layered cathode material NaCrO2, it is found that the migration originates from random desodiation and subsequent Na-free layer formation at high charge potential. To address this issue, a Ru/Ti co-doping strategy is developed, where active Ru is selectively desodiated to suppress Na-free layer formation, while inactive Ti serves as a pillar to avoid complete desodiation in Ru-contained TM layers, leading to enhanced electrochemical performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yameng Fan, Emilia Olsson, Gemeng Liang, Zhijie Wang, Anita M. D'Angelo, Bernt Johannessen, Lars Thomsen, Bruce Cowie, Jingxi Li, Fangli Zhang, Yunlong Zhao, Wei Kong Pang, Qiong Cai, Zaiping Guo
Summary: This study investigates the mechanical behavior of cobalt-free Li1.2Ni0.2Mn0.6O2 and demonstrates the positive impact of two-phase Ru doping. The Ru doping improves structural reversibility and restrains structural degradation during cycling, resulting in high structural stability and a high capacity-retention rate during long-term cycling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Chih-Yu Chang, Natalia Majewska, Kuan-Chun Chen, Wen-Tse Huang, Tadeusz Lesniewski, Grzegorz Leniec, Slawomir M. Kaczmarek, Wei Kong Pang, Vanessa K. Peterson, Ding-Hua Cherng, Kuang-Mao Lu, Sebastian Mahlik, Ru-Shi Liu
Summary: In this work, the emission band of NIR phosphors is broadened by controlling crystal structure disorder through cation cosubstitution. The increased deviation of the cation radii leads to enhanced electron-phonon coupling, resulting in a wider emission spectrum and high internal quantum efficiency. Additionally, the application of high pressure can create a structure with ultra-broad-band emission.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Veeramani Rajendran, Kuan-Chun Chen, Wen-Tse Huang, Natalia Majewska, Tadeusz Lesniewski, Maciej Grzegorczyk, Sebastian Mahlik, Grzegorz Leniec, Slawomir Maksymilian Kaczmarek, Wei Kong Pang, Vanessa K. Peterson, Kuang-Mao Lu, Ho Chang, Ru-Shi Liu
Summary: Researchers develop a series of Ca14Zn6Ga10-xMnxO35 materials that exhibit simultaneous Mn4+ (650-750 nm) and Mn5+ (1100-1250 nm) luminescence. They reveal the preferential occupancy of Mn in regular octahedral and tetrahedral environments, with the short bond length between these responsible for luminescence. The theoretical spin-orbital interaction model presented in this work breaks the spin selection rule and enables the luminescence of Mn4+ and Mn5+. The high photon flux achieved under a driving current demonstrates the potential for real-time applications.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jinjin Ban, Hongjie Xu, Guoqin Cao, Yameng Fan, Wei Kong Pang, Guosheng Shao, Junhua Hu
Summary: Novel iron-rich nitride nanoparticles with tunable electronic and bonding characteristics were designed and anchored on N-doped porous carbon for potential use in energy storage and conversion. The synergistic effects of phase transition and electron-spin regulation on oxygen electrocatalysis were demonstrated. The (CoxFe1-x)(3)N@NPC core-shell structure with high dispersibility was induced by an intermediate phase transition process, which effectively prevented the coarsening of metallic nitrides. The incorporation of cobalt regulated the spin polarization of d-band electrons, and the optimal cobalt content (Co0.17Fe0.83)(3)N@NPC showed improved bifunctional catalytic performances in balancing the adsorption of *O-2 and the hydrogenation of *OH.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qining Fan, Shilin Zhang, Jicheng Jiang, Wilford Lie, Wei Kong Pang, Qinfen Gu, Weishen Yang, Huakun Liu, Jiazhao Wang, Zaiping Guo
Summary: The search for viable carbon-neutral and renewable sources of energy is a crucial challenge in science today. The chemical community is dedicated to finding efficient, inexpensive, and sustainable electrocatalysts that can utilize energy from sustainable resources. This study identifies a green and cheap ethanol organocatalyst that efficiently catalyzes the oxidation of Li2S in electrochemical reactions of Li2S cathodes. The concept of utilizing small molecular organocatalysts as tools to enhance electrochemical reactions has broad implications for green and sustainable chemistry cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hang Zhang, Yun Gao, Jian Peng, Yameng Fan, Lingfei Zhao, Li Li, Yao Xiao, Wei Kong Pang, Jiazhao Wang, Shu-Lei Chou
Summary: Prussian blue analogues (PBAs) have high theoretical energy density and low cost, but their high water and vacancy content lower the energy density and pose safety issues. A potassium-ions assisted strategy is proposed to synthesize highly crystallized PBAs, which exhibit increased redox potential and high energy density of approximately 450 Wh kg(-1). In addition, unconventional highly-reversible phase evolution and redox-active pairs were identified for the first time, and the preferred guest-ion storage sites and migration mechanism were systematically analyzed through theoretical calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Wenchao Zhang, Fangli Zhang, Sailin Liu, Wei Kong Pang, Zhang Lin, Zaiping Guo, Liyuan Chai
Summary: The trend of converting CO2 into valuable chemicals is discussed in this article, highlighting the efficient approach of fixing CO2 as carbon or carbonates through Li-CO2 chemistry. The importance of anions/solvents in forming a robust solid electrolyte interphase (SEI) layer and the solvation structure is emphasized, with findings showing that selecting the appropriate solvent and ion pair ratio is crucial for improving electrolyte efficiency.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Yanyan Wang, Zhijie Wang, Wei Kong Pang, Wilford Lie, Jodie A. Yuwono, Gemeng Liang, Sailin Liu, Anita M. D' Angelo, Jiaojiao Deng, Yameng Fan, Kenneth Davey, Baohua Li, Zaiping Guo
Summary: The authors propose a hybrid electrolyte that incorporates strongly polar molecules to strengthen the water O-H bonds, thus reducing water activity and improving the electrochemical performance of aqueous zinc-ion batteries.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Qingyun Dou, Nan Yao, Wei Kong Pang, Yeonju Park, Peixun Xiong, Xiaotong Han, Harpalsinh H. Rana, Xiang Chen, Zhong-Heng Fu, Lars Thomsen, Bruce Cowie, Yingbo Kang, Qin Liu, Dong Hyun Min, Young Mee Jung, Zaiping Guo, Qiang Zhang, Ho Seok Park
Summary: This study reports the high plating/stripping time and rate capability of Zn-Al alloy anodes in Al3+-containing hybrid electrolytes. The more reversible Al deposition on Zn is attributed to weak Al3+-solvent interactions and fast Al3+ transfer kinetics in nitrile-based electrolytes.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
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)
