Article
Chemistry, Physical
M. A. A. Mohamed, L. Singer, H. Hahn, D. Djendjur, A. Oezkara, E. Thauer, I. G. Gonzalez-Martinez, M. Hantusch, B. Buechner, S. Hampel, R. Klingeler, N. Graessler
Summary: In this study, an antiperovskite (Li2Fe)SeO material was synthesized using a one-step solid-state method. The material showed excellent thermal stability and high cycling performance, making it a promising cathode material for lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Chenkun Li, Yao Xiao, Xiaosong Zhang, Hongwei Cheng, Ya-Jun Cheng, Yonggao Xia
Summary: This study presents a practical method to address the irreversible capacity loss of lithium-ion batteries during initial cycling by utilizing a Li2CO3/carbon nanocomposite as a lithium replenishment material. The nanocomposite, synthesized through high-speed ball-milling, exhibits high specific capacity and capacity retention in the initial charging cycle. By incorporating the nanocomposite in full-cells, the capacity and cycling life of the batteries are significantly improved.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Junxin Chen, Zhe Huang, Weihao Zeng, Jingjing Ma, Fei Cao, Tingting Wang, Weixi Tian, Shichun Mu
Summary: Surface modification and Co doping can effectively suppress Li/Ni mixing and improve the electrochemical performance of cathode materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Sung-Beom Kim, Hyeona Kim, Deok-Hye Park, Ji-Hwan Kim, Jae-Hoon Shin, Jae-Sung Jang, Sang-Hyun Moon, Jin-Hyuk Choi, Kyung-Won Park
Summary: Ni-rich cathode materials doped with varying amounts of F using a solid-state reaction method show improved cycling performance due to strong bonding between transition metals and F, as well as enhanced Li+ ion transport behavior. However, when the F doping level exceeds the optimal amount, Li/Ni antisite defects cause deteriorated Li+ ion transport, leading to decreased performance in lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Shuang Li, Yipeng Sun, Ning Li, Wei Tong, Xueliang Sun, Charles T. Black, Sooyeon Hwang
Summary: In this study, two different types of porous structures in high-voltage lithium, manganese-rich layered cathodes are revealed, along with the significance of the interface between the cathode and electrolyte in solid-state batteries. Nanopores are found near the interface, while nanovoids are formed during in situ Li+ extraction. Despite the development of nanovoids, the layered structure is preserved.
Review
Chemistry, Multidisciplinary
Wei Zhong, Ziqi Zeng, Shijie Cheng, Jia Xie
Summary: Prelithiation technology is one of the most effective methods to compensate for the loss of active lithium. This review analyzes the factors inducing lithium loss and investigates the mechanisms and effects of prelithiation. The emerging advanced prelithiation technologies and key issues are systematically summarized. Hybrid replenishment and lithium storage technologies are proposed to provide a reference for developing prelithiation technology.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Mengtian Yu, Xuefei Wei, Xiuqin Min, Anbao Yuan, Jiaqiang Xu
Summary: Surface modification with In2O3 can improve the electrochemical performance of lithium-rich layered cathode materials, especially in terms of initial Coulombic efficiency, rate capability, and cycle stability. This modification with a moderate amount of In2O3 enhances electrical conduction and suppresses the growth of the solid electrolyte interphase film.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Anand Rajkamal, Hern Kim
Summary: The higher Ni content with less cobalt usage in lithium nickel cobalt manganese oxide cathode materials results in higher power rating and energy density in lithium-ion batteries. Cation doping effectively suppresses the mixing of Ni ions in the lithium layer. Different cationic dopants have varying effects on the structural stability and performance of the cathode material.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jin Song, Fanghua Ning, Yuxuan Zuo, Ang Li, Hangchao Wang, Kun Zhang, Tonghuan Yang, Yali Yang, Chuan Gao, Wukun Xiao, Zewen Jiang, Tao Chen, Guang Feng, Dingguo Xia
Summary: The research demonstrates that layered Li-rich cathode materials with higher intralayer configuration entropy exhibit superior local structural adaptability, effectively suppressing capacity degradation and voltage decay. After 3 months of cyclic testing, the energy retention of the entropy-stabilization-strategy-enhanced materials is almost twice that of typical materials. When cycled at 1 C, the voltage degradation per cycle is extremely low, demonstrating excellent performance.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Rasu Muruganantham, Tzu-Hsin Tseng, Meng-Lun Lee, Soorathep Kheawhom, Wei-Ren Liu
Summary: This study proposes a method of plasma-modified TiN to improve the electrochemical performance and stabilize the cathode-electrolyte interface reaction of Ni-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode material. The physicochemical properties, Li storage performance, and factors for improving the electrochemical performance were systematically investigated. The NCM811-TiN/graphite pouch cell showed high reversible capacity and cycle stability without changing the bulk structure and morphology, facilitating the practical use of safe and high-energy-density Li-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Aleksandr V. Ivanishchev, Su-Hyun Lee, Jae-Joong Kim, Irina A. Ivanishcheva, Sang-Cheol Nam, Jung-Hoon Song
Summary: The article investigates the influence of particle surface treatment on the electrochemical characteristics of Ni-rich layered oxide materials for lithium-ion battery cathodes. Structural, morphological, and electrochemical methods were applied to study the material's characteristics. X-ray diffraction and scanning electron microscopy were used to determine the structural and morphological properties. Electrochemical methods, such as GITT and EIS, were used to analyze charge transfer processes and diffusion coefficients of lithium ions.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xinhua Zhai, Panpan Zhang, Hui Huang, Jianfeng Zhou, Xiaobo Li, Buming Chen, Yapeng He, Zhongcheng Guo
Summary: Li-rich layered cathode prepared by co-precipitation and surface modified with amorphous Fe2O3 coating showed improved performance in terms of initial coulomb efficiency, cycle stability, and rate capacity. The Fe2O3 coating also stabilized the electrode/electrolyte interface and lowered the charge transfer resistance, contributing to higher structural integrity and cycling stability of the cathode material.
SOLID STATE IONICS
(2021)
Article
Materials Science, Ceramics
Rui He, Aijia Wei, Xue Bai, Lihui Zhang, Xiaohui Li, Jinping Mu, Xi Zhang, Jianmin Ge, Zhenfa Liu
Summary: The recent development of Li-ion batteries based on Ni-rich cathodes with high specific capacity has sparked significant interest. However, the challenge of rapid capacity decay and poor thermal stability faced by cathodes with high Ni concentration has prompted the exploration of alternative solutions, such as in situ coating methods like the application of a LaPO4/Li3PO4 (LP) layer. The LP-modified cathode material demonstrates improved capacity retention and resistance to microcracking during charge/discharge cycling.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Meng Wang, Yongqiang Han, Mo Chu, Lin Chen, Meng Liu, Yijie Gu
Summary: The effects of cerium doping and the formation of layered-spinel hetero-structure on the electrochemical properties of lithium-rich cathode material were studied. Cerium doping and formation of spinel phase facilitated lithium ion diffusion and inhibited structural collapse during cycling, leading to improved cycling stability and rate capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
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
Computer Science, Information Systems
Yazhou Zhang, Dan Ma, Prayag Tiwari, Chen Zhang, Mehedi Masud, Mohammad Shorfuzzaman, Dawei Song
Summary: Computational Linguistics (CL) associated with the Internet of Multimedia Things (IoMT) faces challenges in real-time speech understanding, deep fake video detection, emotion recognition, and home automation. The emergence of machine translation has greatly expanded CL solutions for natural language processing (NLP) applications. Sarcasm detection, a recent AI and NLP task, aims to uncover sarcastic information in texts generated in the IoMT. However, existing approaches often overlook the stance behind texts, which limits their effectiveness. In this research, we propose a new task called stance-level sarcasm detection (SLSD) and introduce an integral framework using BERT and a novel stance-centered graph attention network (SCGAT). Experimental results demonstrate the effectiveness of the SCGAT framework over state-of-the-art baselines.
ACM TRANSACTIONS ON INTERNET TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zekun Li, Zhenyu Wang, Yanli Miao, Yue Ma, Hongzhou Zhang, Xixi Shi, Dawei Song, Lianqi Zhang, Lingyun Zhu
Summary: All-solid-state lithium batteries offer high energy density and security. By using coating materials to create a barrier between the oxide cathode and sulfide solid electrolyte, the overall electrochemical performance of the battery is significantly improved.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Zhiyuan Pang, Hongzhou Zhang, Yue Ma, Dawei Song, Xixi Shi, Lianqi Zhang, Yong Zhou
Summary: This study compared the effects of different binders on sulfur cathodes and found that the use of gamma-PGA binder can effectively inhibit the shuttle effect of lithium polysulfide and maintain the integrity of the battery, resulting in a higher capacity retention after 100 cycles.
Article
Engineering, Environmental
Chen Li, Qifang Sun, Qing Zhang, Chaoran Xu, Su Wang, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang
Summary: A multifunctional binder named PLG was developed to address the issues in Li-S batteries. PLG, generated by hydrogen-bonding interaction between polyacrylamide, locust bean gum, and gellan gum, suppresses electrode volume variation and anchors lithium polysulfides. The PLG-based electrode exhibits higher discharge capacity and improved reaction kinetics compared to the PVDF counterpart. This study demonstrates the promising performance of polysaccharide-based binder for wide temperature operable Li-S batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Shunjin Yang, Fengming Wan, Aiguo Han, Liran Fang, Qifang Sun, Zixiang Zhao, Dawei Song, Lianqi Zhang, Lifang Chen, Colin A. Wolden, Xin Zhang, Yongan Yang
Summary: We report an environmentally friendly process for scalable production of Li2S without the need for a glove box. The process involves the reaction between Li metal and H2S in ethanol as the solvent, which can be recycled. The production capability reaches 1.0 kg_Li2S/day, 50-100 times larger than previous reports, and the quality of the resulting Li2S is validated for use in lithium-sulfur batteries.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Songlin Liang, Lianqi Zhang, Zheng Cui, Xiaoteng Ma
Summary: Passive heat dissipation based on capillary flow has excellent applications in thermal management. In this study, a novel close-packed capillary microchannel is constructed, and the capillary flow and heat transfer characteristics of different structures are investigated. The results show that the non-circular channels have better capillary velocity and heat transfer capacity compared to circular channels of equal hydraulic diameter. The effects of channel diameter and wettability on capillary flow and heat transfer are also discussed.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Nanoscience & Nanotechnology
Qing Zhang, Qifang Sun, Su Wang, Chen Li, Chaoran Xu, Yue Ma, Hongzhou Zhang, Dawei Song, Xixi Shi, Chunliang Li, Lianqi Zhang
Summary: In this work, the authors innovatively introduced the chloride superionic conductor Li2ZrCl6 into the poly(ethylene oxide)-based solid-state polymer electrolyte, which effectively improved the ionic conductivity and mechanical strength. The electrolyte showed a high ionic conductivity of 5.98 x 10-4 S cm-1 and a high Li-ion transference number of 0.44. The interaction between Li2ZrCl6 and PEO was examined, inhibiting the decomposition of PEO and facilitating the uniform deposition of Li ions. The LiFePO4||Li all-solid-state lithium battery with 1% LZC-added composite electrolyte demonstrated excellent cycling performance with a capacity of 145.4 mA h g-1 after 400 cycles at 0.5 C, showing great potential for the next generation of all-solid-state lithium metal batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shiguang Zhang, Xinyan Li, Yun Su, Yang Yang, Hao Yu, Haibo Wang, Qing Zhang, Yaxiang Lu, Dawei Song, Shanfeng Wang, Qinghua Zhang, Xiaohui Rong, Lianqi Zhang, Liquan Chen, Yong-Sheng Hu
Summary: A rational four-in-one strategy to enhance the performance of Na-x[Ni,Mn]O-2 materials is proposed, involving innovative composition design and elegant synthesis management. After modification, the capacity retention rate of half-cells increases from 45% to 77% after 250 cycles at 1 C rate, and the capacity of full cells is maintained at 83% after 300 cycles at 0.5 C rate. This strategy provides new insights into the overall optimization of cathode materials for Na-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yiming Sun, Jianguo Liao, Hongzhou Zhang, Dawei Song, Defa Wang, Lianqi Zhang
Summary: Single crystallization is an effective solution to the structural degradation of agglomerated poly-crystalline layered cathode materials. Conventional methods rely on calcination at high temperatures, but the instability of Ni3+ leads to structural instability at high temperatures, degrading the cathodes' electrochemical properties. The formation mechanism and synthesis method of single-crystal Ni-rich materials need to be re-explored systematically.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Su Wang, Qifang Sun, Qing Zhang, Chen Li, Chaoran Xu, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang
Summary: The researchers developed an ambient-temperature dual-layer solid polymer electrolyte with poly(propylene carbonate)/succinonitrile at the cathode and polyethylene oxide/Li7La3Zr2O12 at the anode. Molecular dynamics simulations and density functional theory calculations confirmed the formation of solvated sheath-like structures that facilitate rapid transport of Li ions through polymer segments. Experimental results validated the proposed mechanism.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Rongzheng Tian, Zhenyu Wang, Jianguo Liao, Hongzhou Zhang, Dawei Song, Lingyun Zhu, Lianqi Zhang
Summary: In this work, small-size single crystal NCM811 (S-SC) is synthesized to solve mechanical damage and contact failure issues in all-solid-state batteries. The interfacial stability is improved by a Li2O pre-lithiation strategy. The Li2O pre-lithiated S-SC cathode shows extraordinarily high-voltage stability in ASSLBs.
ADVANCED ENERGY MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Zhiyuan Pang, Hongzhou Zhang, Lu Wang, Dawei Song, Xixi Shi, Yue Ma, Linglong Kong, Lianqi Zhang
Summary: Lithium-sulfur (Li-S) batteries are considered one of the most promising future batteries due to their high theoretical energy density (2600 W center dot h center dot kg(-1)) and use of inexpensive active materials (elemental sulfur). Recent advancements in fundamental research and engineering, particularly in electrode, electrolyte, membrane, binder, and current collector, have significantly improved the performance of Li-S batteries from the laboratory level to practical application. However, safety concerns still need attention in the upcoming stage of application. This review focuses on the development of electrolytes for Li-S batteries from liquid to solid state, and highlights issues such as soluble lithium polysulfide migration, electrolyte ionic conductivity, electrolyte-electrode interface contact, and reaction kinetics. Furthermore, future perspectives on safe and high-performance Li-S batteries are also discussed.
FRONTIERS OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Haibo Wang, Feixiang Ding, Yuqi Wang, Zhen Han, Rongbin Dang, Hao Yu, Yang Yang, Zhao Chen, Yuqi Li, Fei Xie, Shiguang Zhang, Hongzhou Zhang, Dawei Song, Xiaohui Rong, Lianqi Zhang, Juping Xu, Wen Yin, Yaxiang Lu, Ruijuan Xiao, Dong Su, Liquan Chen, Yong-Sheng Hu
Summary: In this work, a strategy of achieving an in situ plastic-crystal Na3-3xAlxPO4 coating and bulk Al doping for an O3-NaNi0.4Fe0.2Mn0.4O2 cathode was proposed. Na3-3xAlxPO4 exhibited high ion transport performance due to its unique paddle-wheel mechanism. The in situ formed Na3-3xAlxPO4 and bulk Al-O bonds improved the surface and bulk structure stability, leading to enhanced electrochemical performance with a capacity retention rate of 70% after 500 cycles in a full cell.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Zhihui Xu, Xiaohu Wang, Zhenyu Wang, Xuelei Li, Jingshun Liu, Aruuhan Bayaguud, Lianqi Zhang
Summary: All-solid-state lithium batteries (ASSLBs) with sulfide solid electrolytes (SSEs) have gained attention for their high safety and energy density. Ni-rich layered oxide cathode materials show promise in ASSLBs due to their high voltage, reversible capacity, and low cost. However, their performances, especially long-life capacity, are insufficient for electric vehicles. This review summarizes the issues of physical connection, chemical/electrochemical reactions, and space-charge layer (SCL) of Ni-rich layered oxide cathodes in ASSLBs with SSEs, as well as the modification strategies to address these issues. The future development direction of ASSLBs using Ni-rich oxide cathodes and SSEs is also discussed briefly.
JOURNAL OF POWER SOURCES
(2023)
Article
Computer Science, Artificial Intelligence
Hanqing Zhang, Dawei Song
Summary: Conversational Emotion Recognition (CER) aims to classify the emotion of each utterance in a conversation. Current CER models may not sufficiently capture the effects of contextual factors. To address this issue, a semantic-guided contrastive context-aware CER method (C3ER) is proposed to enhance the accuracy and robustness of emotion recognition.
IEEE TRANSACTIONS ON AFFECTIVE COMPUTING
(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)
