Article
Chemistry, Physical
Benjamin B. Peterson, Evan M. Andrews, Francisco Hung, John C. Flake
Summary: Secondary lithium-bromine (Li-Br-2) batteries with carbonized metal-organic frameworks (MOFs) show improved capacities and retention rates, with ZIF-8 derived electrodes exhibiting higher specific capacities and retention over cycles. The enhanced performance is attributed to higher LiBr loadings, improved bromine trapping and adsorption, and the microporous structure with heteroatom bonding in ZIF-8 derived carbon electrodes.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Multidisciplinary
Matthew Li, Jun Lu, Khalil Amine
Summary: The field of lithium-sulfur batteries has greatly benefited from advancements in nanotechnology, with nanoporous material, heterogeneous nanocomposite, and hierarchical electrode developments being key milestones. This review highlights the specific roles of nanotechnology in lithium-sulfur batteries, discussing relevant testing conditions and future directions for electrocatalysis.
Article
Engineering, Environmental
Daixiang Wei, Wei Wang, Longjin Jiang, Zhidong Chang, Hira Anwar, Hualei Zhou, Bin Dong, Dekun Gao, Hao Lei, Zhiyi Chen, Wenjun Li
Summary: In this study, a strategy for the preferential extraction and regeneration of spent lithium-ion battery cathodes was proposed, leading to the successful recovery of a high percentage of lithium and cobalt. This method offers an effective solution for the recycling and utilization of spent lithium-ion batteries.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Lixiang Wu, Fu-Shen Zhang, Zhi-Yuan Zhang, Cong-Cong Zhang
Summary: This study provides a green, economical, and effective approach for selective recovery of lithium from spent LFP battery. Mechanism analysis indicated that electrons were transferred to ferric chloride from LFP cathode material, and the LFP was oxidized to iron phosphate during mechanochemical activation, but the olivine structure of the cathode material remained unchanged. In addition, the LiFe5O8 synthesized from spent LFP battery has good magnetic properties.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Chemistry, Physical
Mingyue Wang, Zhongchao Bai, Ting Yang, Chuanhao Nie, Xun Xu, Yunxiao Wang, Jian Yang, Shixue Dou, Nana Wang
Summary: Lithium-sulfur batteries have great potential for energy storage systems due to their high theoretical energy density and abundance of sulfur. However, the low actual energy density remains a challenge for their practical applications. This review highlights recent progress in increasing the sulfur loading of Li-S batteries and discusses key materials such as sulfur hosts and separators.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jinxing Li, Hanying Xu, Jie Li, Xinping Chen, Yujuan Zhang, Wei Liu, Wenting Li, Ce Han, Shengli An, Xindong Wang, Xinping Qiu
Summary: In this study, a simple and affordable method was developed to construct a robust cathode-electrolyte interphase (CEI) layer by quenching a cobalt-free lithium-rich layered oxide in a specific solvent. The customized CEI layer with well-distributed LiF, TMF x , and partial organic component CF x acted as a physical barrier to prevent the contact between the cathode and electrolyte, which improved the stability of the CEI layer. The CEI layer also enhanced the cycle stability and initial coulomb efficiency of the cathode material, offering a valuable strategy for designing stable interface chemistry in lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Kai Zhang, Yuan Xie, Michael J. Monteiro, Zhongfan Jia
Summary: Researchers have synthesized redox-active organic compounds with very low solubility nitroxide radicals, which show potential for application in solid-state energy storage. These new structures demonstrate the importance of lower solubility and the ability to maintain good properties even at high content, while preventing shuttle effects.
ENERGY STORAGE MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Shunsuke Sawada, Hideki Yoshida, Shalom Luski, Elena Markevich, Gregory Salitra, Yuval Elias, Doron Aurbach
Summary: Lithium sulfur batteries with high gravimetric energy density are suitable for drones, but face challenges with high sulfur loading and poor sulfur conductivity. Sulfur-carbon composite materials and active additives in the solution have been used to mitigate these issues, resulting in improved energy density and stability. The use of composite current collectors, selected binders, and carbonaceous matrices impregnated with active mass is necessary to achieve high sulfur loading and specific/areal capacity. Good adhesion between the carbon-coated Al foil current collectors and the composite sulfur impregnated carbon matrices is crucial for stable electrodes.
Article
Multidisciplinary Sciences
Minsoo Kim, Hyunjae Kim, Inwoo Kim, Barsa Chang, Jang Wook Choi
Summary: Electric vehicles impose higher standards on the lifetime and safety of lithium-ion batteries. This study introduces entropymetry as a real-time analytic tool for monitoring the evolution of microcracks in battery cathodes, providing a nondestructive diagnostic tool for safe and reliable operation of EV batteries.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Physical
Matthew S. Gonzalez, Zhaohui Wu, John Holoubek, Qizhang Yan, Haodong Liu, Ping Liu
Summary: By selectively removing conductive carbon from the cathode surface and creating a gradient-conductivity electrode, the active material acts as a resistive element limiting the current in the battery, improving safety without compromising energy density. This approach shows a 2x reduction in short circuit current and temperature rise during abuse charging tests, rendering short circuits harmless. Postmortem analysis confirms that dendrites only contact surface oxide particles, supporting the viability of this gradient conductivity electrode design.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Jeongmin Shin, Jung-Hun Lee, Jae Kwon Seo, Weerawat To A. Ran, Soo Min Hwang, Young-Jun Kim
Summary: This study reports a dry-processed Ni-rich oxide cathode for lithium-ion batteries with high volumetric capacity and good cycling performance. It offers a viable way to lower the energy cost and environmental damage, making it a promising choice for next-generation LIBs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Yi Ji, Chad T. Jafvert, Nadezhda N. Zyaykina, Fu Zhao
Summary: The increasing demand for electric vehicles and the rapid consumption of rechargeable lithium-ion batteries call for the recycling of spent cathode active materials (CAMs) to reduce hazardous wastes and provide raw materials for battery production. Traditional methods such as direct calcination of polyvinylidene fluoride (PVDF) binder have drawbacks of high energy consumption and toxic gas release. This study explores an environmentally friendly and effective alternative using different lithium salts, and achieves high peel-off efficiency with LiOAc and LiNO3. The mechanism of PVDF decomposition is proposed.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Khagesh Tanwar, Xin Tan, Md Mokhlesur Rahman, Srikanth Mateti, Pavel Cizek, Paramita Koley, Chunping Hou, Sean C. Smith, Ying (Ian) Chen
Summary: The novel molybdenum sulfide-carbon composite thin film electrodes exhibit excellent cycling performance and rate capability in Li-MSx cells, without any shuttle effect.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Kaifang Song, Chi Zhang, Naifang Hu, Xiangkun Wu, Lan Zhang
Summary: Optimizing electrode structure can effectively enhance the performance of thick electrodes, achieving better lithium ion battery properties through a reasonable porosity distribution.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Ravindra Kempaiah, Henry Chan, Srilok Srinivasan, Subramanian K. R. S. Sankaranarayanan, Badri Narayanan, Arunkumar Subramanian
Summary: This study used density functional theory calculations to examine the impact of stabilizing potassium cation concentration on tunneled manganese dioxide cathodes in lithium intercalation. Low K+ concentrations were found to result in partially cation-deficient tunnel structures with excellent thermodynamic stability and electronic conductivity, critical for achieving high capacity batteries with enhanced rate capability. These findings offer perspectives for designing low-cost transition metal oxide cathodes for high-performance Li-ion batteries with excellent cycle life.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Ceramics
Dong Hyun Kim, Ji-Young Kim, Jae-Ho Park, Sang-Ok Kim, Hyung-Seok Kim, Kwang-Bum Kim, Kyung Yoon Chung
Summary: Room-temperature sodium storage technology has been studied as an alternative to lithium-ion batteries. In situ X-ray diffraction techniques were used to investigate the synthesis process and thermal stability of the NaNiO2 cathode material for Na-ion batteries. The findings provide important guidance for the development of Ni-based NaMO2 oxides for next-generation Na-ion batteries.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Iqra Moeez, Dieky Susanto, Jae-Ho Park, Ji-Young Kim, Hee-Dae Lim, Kyung Yoon Chung
Summary: The electrochemical performance of NaxCl can be improved by controlling the upper limit of cut-off voltage, which introduces more Na-vacancy defects and increases capacity. The oxidation of Cl- ions released by NaCl decomposition forms Cl-based organic species, protecting the NaCl electrode from undesired side reactions at high voltage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Eunjeong Seok, Minjun Kim, Seunghak Lee, Jeongeun Park, Minkyeong Ku, Hyojun Lim, Yongheum Lee, Seungho Yu, Wonchang Choi
Summary: This study proposes a method using cationic polymers to adsorb vanadium anion complexes and calcination to prepare LiNi0.5Mn1.5O4 with a uniform nano-Li3VO4 coating layer. The coating enhances lithium ion transfer and protects the active material from electrolyte corrosion, resulting in stable electrochemical performance even under high temperature conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Soonhyun Hong, Heesang Lee, Young-Sang Yu, Jungjin Park, Chunjoong Kim
Summary: The lithium-ion battery is widely used and has a 10% annual market growth. Disordered rock-salt structured cathode materials with extended capacities and cost effectiveness have gained attention as potential high-performance cathodes. However, their low conductivities and poor cycle life have hindered their utilization. We synthesized doped-disordered rock-salt materials with reduced particle sizes to improve their electrochemical performance, and confirmed their enhanced performances through various analysis techniques.
ELECTRONIC MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Minjun Kim, Seunghak Lee, Dohyub Park, Haeun Kang, Dayoung Kam, Jun-Ho Park, Si Hyoung Oh, Hun-Gi Jung, Wonchang Choi
Summary: In this study, Ag-embedded N-doped carbon/Li-ion conductor double-shelled hollow spheres (Ag@NC@LAZP) are proposed as an electrode material for selective Li deposition. The use of lithiophilic Ag nanoseeds and N-doped carbon (NC) layers lowers the nucleation overpotential, thereby facilitating uniform Li deposition. The application of a Li1.5Al0.5Zr1.5(PO4)3 (LAZP) outer layer is effective for the complete deposition of Li into the spherical inner space, and stable Li plating/stripping with improved cycling performance is achieved.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Sukhyun Kang, Kangpyo Lee, Jeong Ho Ryu, Ghulam Ali, Muhammad Akbar, Kyung Yoon Chung, Chan-Yeup Chung, HyukSu Han, Kang Min Kim
Summary: This study presents a new catalyst-design strategy for the growth of iron oxide nanoparticles on surface-functionalized carbon nanotubes using pulsed laser ablation. The functional interface enhances charge transfer kinetics and reduces the energy barrier for the rate-determining step of the oxygen evolution reaction. The optimized nanohybrid exhibits a low overpotential and excellent durability.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Seunghak Lee, Eunjeong Seok, Haeun Kang, Dohyub Park, Minjun Kim, Dayoung Kam, Minsu Choi, Hyung-Seok Kim, Wonchang Choi
Summary: Molybdenum sulfide (MoS2) with a 2-D open framework structure has been used as an anode material in sodium-ion batteries (SIBs), but it has limitations due to low electronic conductivity and volume change. A modified MoS2 composite, rGO-MoS2@SiOC, was prepared by dispersing MoS2 modified with hydrophobic reduced graphene oxide (rGO) in silicone oil and subsequently coating it with SiOC via pyrolysis. The composite showed improved electronic conductivity, volume expansion accommodation, and excellent performance in terms of capacity and rate characteristics.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Jeongeun Park, Minjun Kim, Minsu Choi, Minkyeong Ku, Dayoung Kam, Sang-Ok Kim, Wonchang Choi
Summary: Due to the abundance of sodium resources, sodium-ion batteries (SIBs) are considered a cost-efficient alternative to lithium-ion batteries for energy storage. However, the cycling stability of antimony-based anodes, which have high theoretical capacity, is poor due to rapid volume changes during charging and discharging processes. In this study, Sb/C-SiOC composites were prepared using the adsorption properties of metal-organic frameworks (MOFs) to alleviate the volume expansion. The resulting composites exhibited improved cycle performance and rate performance, making it a promising strategy for developing alloy-based energy storage materials.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Dong Hyun Kim, Ghulam Ali, Ji -Young Kim, Kwang-Bum Kim, Kyung Yoon Chung
Summary: This study presents the development of a novel real-time X-ray analytical micro-furnace (RT-XAMF) technique for monitoring the phases during the synthesis of LiNi0.8Co0.15Al0.05O2. The technique utilizes an insulating block to ensure stable temperature control and has a small temperature tolerance of +/- 0.5 degrees C up to 1000 degrees C. Detailed information on the optimal heat treatment conditions for layered structure formation was obtained, resulting in high charge and discharge capacities in the electrode material. The results demonstrate the applicability of the RT-XAMF technology in the development of metal oxides and ceramic materials.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Environmental
Dayoung Kam, Minsu Choi, Dohyub Park, Wonchang Choi
Summary: A strategy of uniformly doping Zn ions into the region below the surface of Ni0.90Co0.07Mn0.03OH2 using polyvinyl pyrrolidone is proposed to address the significant degradation of structural integrity of Ni-rich single-crystal cathode materials caused by cation mixing during high-temperature sintering. This approach improves the surface and thermal stability of the material under high-state-of-charge conditions by reducing the degree of Li/Ni mixing. The doped sample with 1 wt% Zn demonstrated superior rate performance and excellent capacity retention compared with the pristine sample.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Minkyeong Ku, Dohyub Park, Minjun Kim, Minsu Choi, Wonchang Choi
Summary: Silicon is gaining attention as a high-capacity anode material for lithium-ion batteries due to its high theoretical capacity and low discharge potential. However, the volumetric change and unstable solid electrolyte interface (SEI) of silicon limit its commercialization. In this study, a silicon-based composite embedded in a silicon oxycarbide (SiOC) matrix was developed, with the introduction of hydrophobic reduced graphene oxide (rGO) onto a tannic acid (TA) modified silicon surface to improve dispersion. The Si/rGO/SiOC composite exhibited a high reversible capacity and excellent electrochemical properties, proving its potential as an efficient anode material for LIBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Burcu Kalyoncuoglu, Metin Ozgul, Sebahat Altundag, Emine Altin, Iqra Moeez, Kyung Yoon Chung, Muhammad Arshad, Mustafa Goktan Aydin, Tolga Depci, Serdar Altin, Sevda Sahinbay
Summary: This study reports the positive effects of Ag substitution/addition to Na0.67MnO2, which can increase the capacity and improve the cycle life. The positive effects are mainly attributed to the enlarged interlayer spacing, suppressed Jahn-Teller effect, and increased electrical conductivity due to the presence of metallic Ag.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Eunjeong Seok, Minsu Choi, Dohyub Park, Minjun Kim, Yongheum Lee, Wonchang Choi
Summary: A submicron spherical SiOC material was successfully synthesized using a facile strategy, resulting in regular particles with improved electrochemical performance and capacity retention for lithium-ion battery anodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Sung Yeob Kim, Hee-Jae Ahn, Young-Hoon Kim, Hong-Kyu Kim, Byeong-Hyeon Lee, Young-Woon Byeon, Jae-Ho Park, Kyung Yoon Chung, Jae-Chul Lee
Summary: This study presents a microsized CuS conversion anode for Na-ion batteries that achieves high capacity, stable cycling performance, and excellent rate performance. The developed anode offers a simple and cost-effective solution without the need for expensive materials or complicated synthesis methods, providing new avenues for high-performance battery electrodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Jun Tae Kim, Hyeon-Ji Shin, A-Yeon Kim, Hyeonseong Oh, Hun Kim, Seungho Yu, Hyoungchul Kim, Kyung Yoon Chung, Jongsoon Kim, Yang-Kook Sun, Hun-Gi Jung
Summary: This study proposes a method for improving the performance of all-solid-state batteries by synthesizing controlled sulfide solid electrolyte materials and their simple coating process. The results show that the coated materials exhibit excellent Li-ion conductivity and suppress cathode degradation reactions, enabling high discharge capacity and long cycle life.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
