Article
Chemistry, Physical
Wending Pan, Yulong Zhang, Kee Wah Leong, Yingguang Zhang, Jianjun Mao, Yifei Wang, Xiaolong Zhao, Shijing Luo, D. Y. C. Leung
Summary: This study introduces 2D MoS2 as a high-performance cathode material for aqueous Al-ion batteries, achieving high voltage and energy density through anion intercalation mechanism. The battery demonstrated an impressive retention rate of approximately 100% after 200 cycles. This research not only provides insights into the development of 2D MoS2 cathode materials but also lays the foundation for advanced cathode materials in the field of Al-ion batteries.
Article
Energy & Fuels
Ewelina Rudnicka, Pawel Jakobczyk, Andrzej Lewandowski
Summary: In this study, the capacity of graphene|electrolyte|Li laboratory cell was tested at different currents. The impedance of the Li4Ti5O12|electrolyte|Li laboratory and commercial Li-ion cells was also measured. The research discusses various factors that affect Li-ion batteries, such as cathode and anode material capacity, battery polarization, heat dissipation, volume changes, capacity under non-equilibrium conditions, pseudocapacitive behavior, and battery safety. The results show that battery capacity may vary with current and polarization, and the measurement process may affect the determined capacity value.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Michael Merz, Bixian Ying, Peter Nagel, Stefan Schuppler, Karin Kleiner
Summary: This study investigates the reversible and irreversible charge exchange reactions of Li- and Mn-rich layered oxides, and demonstrates the relationship between O-O formation in the bulk and reduction/oxidation processes of Ni, Co, and Mn. It also discusses the reversibility of charge compensation reactions and differences between O-O formation and oxygen release during activation.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Environmental
Xiaojiang Hou, Hongchang Shi, Tianjiao Chang, Kaiming Hou, Lei Feng, Guoquan Suo, Xiaohui Ye, Li Zhang, Yanling Yang, Wei (Alex) Wang
Summary: The HONF-MoS2-CuS-EG cathode with unique structure demonstrates superior electrochemical performance in hybrid Mg/Li-ion batteries. It features increased interlayer distance MoS2, metallic-like conductivity CuS, and superior electrical conductivity EG. This cathode shows high discharge capacity and excellent rate performance at different current densities, presenting a practical approach for constructing advanced MoS2-based cathode materials for MLIBs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Katarzyna Redel, Andrzej Kulka, Katarzyna Walczak, Anna Plewa, Emil Hanc, Mateusz Marzec, Li Lu, Janina Molenda
Summary: This paper discusses the advantages of high-voltage Li-rich oxides as cathode materials for Li-ion batteries, analyzes the relationship between the structure evolution and electrochemical performance of the new Li-Mn-Ni-O group, and examines the origin of the extraordinary reversible capacity of Li [Li0.27Mn0.63Ni0.1]O-2.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Kun He, Yifei Yuan, Wentao Yao, Kun You, Mouad Dahbi, Jones Alami, Khalil Amine, Reza Shahbazian-Yassar, Jun Lu
Summary: The study found that tunnel-structured MnO2 exhibits instability during lithium ion insertion/extraction, leading to cycling capacity decay due to a partially reversible phase transition. Additionally, the presence of multiple disordered regions at the MnO2/LiMnO2 interface further undermines structural integrity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Physical
Xin Cao, Yu Qiao, Min Jia, Ping He, Haoshen Zhou
Summary: This study reviews the potential application of Li-rich and Li-excess oxides as cathode materials for next-generation Li-ion batteries, discusses the challenges in using Li-excess oxides, and explores mechanisms to address these issues. Future research directions in the field are also proposed based on advanced characterizations and theory calculations.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kun He, Yifei Yuan, Wentao Yao, Kun You, Mouad Dahbi, Jones Alami, Khalil Amine, Reza Shahbazian-Yassar, Jun Lu
Summary: The researchers used advanced in situ diagnostic tools to track the structural evolution of tunnel-structured MnO2 upon Li+ ion insertion/extraction, and found that the cycling instability originates from a partially reversible phase transition between beta-MnO2 and orthorhombic LiMnO2, as well as the presence of multiple arrow-headed disordered regions at the MnO2/LiMnO2 interface which severely impact the structural integrity of the host material. This finding sheds light on the instability of tunnel-structured materials, suggesting that future strategies should focus on tuning charge transport kinetics for performance enhancement.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Yi Yang, Ling Gao, Liming Shen, Ningzhong Bao
Summary: A FeF3/C electrode with excellent performance was fabricated, demonstrating its potential in lithium metal anodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Multidisciplinary Sciences
Jung-Hui Kim, Kyung Min Lee, Ji Won Kim, Seong Hyeon Kweon, Hyun-Seok Moon, Taeeun Yim, Sang Kyu Kwak, Sang-Young Lee
Summary: In this study, a new cationic semi-interpenetrating polymer network (c-IPN) binder is proposed to regulate electrostatic phenomena and improve the performance of high-capacity positive electrodes for Li metal batteries. The c-IPN binder suppresses crack evolution and improves the dispersion state of electrode components by surface charge-driven electrostatic repulsion and mechanical toughness. It also immobilizes anions of liquid electrolytes inside the electrodes via electrostatic attraction, facilitating Li+ conduction and forming stable cathode-electrolyte interphases.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jeffery M. Allen, Peter J. Weddle, Ankit Verma, Anudeep Mallarapu, Francois Usseglio-Viretta, Donal P. Finegan, Andrew M. Colclasure, Weijie Mai, Volker Schmidt, Orkun Furat, David Diercks, Tanvir Tanim, Kandler Smith
Summary: The study develops a damage model based on NMC 532 secondary cathode particles to explore the influence of particle sizes on damage and determine charging profiles that reduce cathode fracture. It is found that small secondary particles with large grains experience significantly less damage compared to larger particles with small grains, and that most of the damage accumulates in the initial cycles.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Mohammad Mahdi Kalantarian, Hatef Yousefi-Mashhour, Maryam Tahertalari, Piercarlo Mustarelli
Summary: This study proposes a method for standardization and normalization parameters and procedures for evaluating the performance of intercalation cathode materials, as well as simple criteria for assessing cell performance. Despite the complex chemistry involved in Li/Na-ion cell operation, the applicability of this simple approach is supported by diffusion theory and experimental assumptions.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Yi Pei, Shuang Li, Qing Chen, Ruilin Liang, Matthew Li, Rui Gao, Dezhang Ren, Ya-Ping Deng, Huile Jin, Shun Wang, Dong Su, Yongfeng Hu, Zhongwei Chen
Summary: This study successfully reduced the irreversible processes and improved the cycle stability and electrochemical performance by accommodating the cationic redox couple on the surface of Li-rich layered oxides.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Electrochemistry
Yichao Wang, Xianguang Miao, Yitong Li, Hwanyeol Park, Yang Lu, Xin Li
Summary: A new type of intercalation Li metal fluorides obtained from Li/Na ion exchange is reported, which allows for composition control to modulate voltage plateau and cyclability.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yehonatan Levartovsky, Arup Chakraborty, Sooraj Kunnikuruvan, Sandipan Maiti, Judith Grinblat, Michael Talianker, Dan Thomas Major, Doron Aurbach
Summary: In this study, improved structural stability, electrochemical performance, and thermal durability of LiNi0.85Co0.1Mn0.05O2 (NCM85) cathode material were achieved through niobium doping. The relationship between enhanced electrochemical performance and structural stability of the cathode particles was demonstrated. The doping with niobium in NCM85 also resulted in improved thermal characteristics and suppressed crack formation during cycling.
ACS APPLIED MATERIALS & INTERFACES
(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)