Article
Chemistry, Physical
Qiao Hu, Jiaying Liao, Xiang Xiao, Xiaodan Wang, Jinli Liu, Youzhi Song, Dongsheng Ren, Hao Zhang, Li Wang, Zonghai Chen, Xiangming He
Summary: This study achieves ultrahigh rate performance by introducing an affinitive conductor, Li3V2(PO4)(3), to enhance the interfacial electron transport of LiMn0.7Fe0.3PO4 as the cathode material for lithium-ion batteries. The results reveal the synergistic effect between LiMn0.7Fe0.3PO4 and Li3V2(PO4)(3) through in situ X-ray diffraction and conductive-atomic force microscopy.
Article
Polymer Science
Shih-Chieh Hsu, Tzu-Ten Huang, Yen-Ju Wu, Cheng-Zhang Lu, Huei Chu Weng, Jen-Hsien Huang, Cai-Wan Chang-Jian, Ting-Yu Liu
Summary: This study investigated the impact of PI structure on the electrochemical performance of carbon-coated LTO and found that introducing rigid p-PDA units can improve the molecular arrangement of PI, resulting in a more regular graphite structure with fewer defects and higher conductivity. As a result, the carbon-coated LTO exhibited better rate performance with a discharge capacity of 137.5 mAh/g at 20 C, nearly 1.5 times larger than that of bare LTO (94.4 mAh/g).
Article
Chemistry, Physical
Xuefang Chen, Yuhui Wang, Gaoping Cao, Tingting Zhang, Xinbao Gao, Hai Ming
Summary: This study successfully combines resin-based carbon nanospheres with cathode materials to form a hybrid electrode, and further improves electron contact and tap density by controlling the size of carbon nanospheres and constructing a size-matched spatial structure model. A capacitor battery assembled with hard-carbon nanospheres as the anode active material exhibits excellent rate capability and cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Biaobing Chen, Min Liu, Shuang Cao, Gairong Chen, Xiaowei Guo, Xianyou Wang
Summary: This paper presents a new method for recovering FePO4 and Li2CO3 from spent LiFePO4 cathode materials to address the shortage of lithium resources. It was found that a sample with 12% carbon content in the LiFePO4 composite demonstrated better electrochemical performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Electrochemistry
Anjie Lai, Youqi Chu, Juantao Jiang, Youguo Huang, Sijiang Hu, Qichang Pan, Fenghua Zheng, Jun Wang, Jie Li, Hongqiang Wang, Qingyu Li
Summary: By using expired beer as carbon source, LFP/C composites are prepared, which exhibit improved electronic conductivity and structural stability. The as-prepared material shows enhanced rate capabilities and low-temperature performance, making it advantageous for use in lithium ion batteries.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Guxin Huang, Jianing Liang, Xingguo Zhong, Haoyue Liang, Can Cui, Cheng Zeng, Shuhao Wang, Mengyi Liao, Yue Shen, Tianyou Zhai, Ying Ma, Huiqiao Li
Summary: In this study, the pre-lithiation performance of Li2C2O4 as a cathode additive was greatly improved by optimizing the combination of conductive additives and catalysts, reducing the particle size, and designing a bilayer electrode. By lowering the delithiation potential, the capacity of Li2C2O4 was increased to its theoretical value and effectively applied to a hard carbon anode.
Article
Electrochemistry
Debabrata Mohanty, Zhen-Lun Lu, I-Ming Hung
Summary: Lithium-ion batteries have become the main power source for hybrid electric vehicles and electric vehicles, and monoclinic-phase Li3V2(PO4)(3) (LVP) is a potential cathode material for the next generation of lithium-ion batteries due to its high operating voltage and low cost. In this study, carbon-coated LVP nano-crystallites were synthesized using the citric-acid gel process, and the effects of carbon coating amount on material characteristics and electrochemical performance were investigated. The results showed that the 11.9% carbon-coated LVP sample exhibited good electrochemical performance during charge-discharge process.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Louiza Larbi, Romain Wernert, Philippe Fioux, Laurence Croguennec, Laure Monconduit, Camelia Matei Ghimbeu
Summary: Potassium vanadium oxyfluoride phosphate was modified by a carbon coating, leading to improved electrochemical performance. Two methods, chemical vapor deposition (CVD) and pyrolysis of chitosan, were used to create the carbon coating. The CVD method resulted in a more homogeneous coating, while the chitosan method increased the specific surface area and reduced surface functionalities. The carbon-coated material showed enhanced coulombic efficiency and mitigation of electrolyte decomposition, leading to improved performance at high C-rates.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yan Zhuang, Wei Zhang, Yingqing Bao, Mingyun Guan
Summary: LiFePO4/C (LFP/C)-coated LiNi0.8Co0.1Mn0.1(NCM811) was prepared by ball milling, and the effect of different coating amounts of LFP/C on the electrochemical performance of NCM811 was investigated. The results showed that a 1 wt% LFP/C coating resulted in good cycling stability and rate performance, as well as improved high temperature and high pressure cycling stability compared to uncoated materials. The coating layer effectively reduced resistance and suppressed side reactions, enhancing the electrochemical performance of Nickel-rich layered materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Tian Chen, Shichang Han, Jing Xu, Ruijiao Tian
Summary: Carbon-modified LVP (LVP/C) composite with a flake-like and high-crystal structure LVP and ultra-thin 6 nm carbon coating exhibits improved electrochemical performance, including higher specific capacities, better rate performance, and cycling stability. These advantages are attributed to the nanostructure, amorphous carbon, and ultra-thin carbon coating.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Electrochemistry
Wenping Jiang, Fanqi Min, Yang Yang, Xiaozhan Zhang, Tianrang Yang, Samuel S. Mao, Quansheng Zhang, Jingying Xie
Summary: This paper coated lithium metaphosphate (LPO) on the surface of hard carbon (HC) using a solid-phase method to improve electrical conductivity and capacity, achieving impressive reversible capacity and outstanding rate performance.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xinlin Huang, Xinlong Li, Yuanzhi Chen, Jie Mei, Wanjie Xu, Laisen Wang, Dong-Liang Peng
Summary: The presence of oxygen vacancies has positive effects on the electrochemical properties of V2O5 nanocrystals, leading to higher initial discharge capacity, excellent rate capability, and cycling stability. A simple way to improve the rate capability and cycling stability of V2O5 nanocrystals for high-performance LIB applications is through the combination of nanoscale dimensions and oxygen vacancies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Chen-Yi Huang, Tsung-Rong Kuo, Sibidou Yougbare, Lu-Yin Lin
Summary: Carbon coating can improve the electrical conductivity of lithium iron phosphate (LFP) as a promising cathode material for lithium ion batteries (LIB), with commercial organic binder Super P (R) (SP) being utilized for the first time to achieve uniform coating and enhance electrochemical performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xinjin Gao, Zhenpeng Xiao, Lili Jiang, Chao Wang, Xinru Lin, Lizhi Sheng
Summary: A yolk-shell porous Fe3O4@C/ graphene nanosheet structure is designed to address the volume change and dissolution/aggregation issues of Fe3O4 anode materials. This structure not only provides space for volume change but also restricts overexpansion, resulting in improved capacity retention. Additionally, the porous Fe3O4 promotes ion transport, and the carbon shell enhances overall conductivity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
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, Multidisciplinary
Zhifeng Zhang, Xia Zhang, Xiaolong You, Mengyuan Zhang, Maru Dessie Walle, Juan Wang, Yajuan Li, You-Nian Liu
JOURNAL OF NANOPARTICLE RESEARCH
(2016)
Article
Chemistry, Physical
Li-Jun Liu, Yang Chen, Zhi-Feng Zhang, Xiao-Long You, Maru Dessie Walle, Ya-Juan Li, You-Nian Liu
JOURNAL OF POWER SOURCES
(2016)
Article
Chemistry, Multidisciplinary
Maru Dessie Walle, Zhifeng Zhang, Xiaolong You, Mengyuan Zhang, Johnny Muya Chabu, Yajuan Li, You-Nian Liu
Article
Electrochemistry
Yajuan Li, Lei Wu, Hui Zhan, Zhiping Song, Lingbo Kong, Zaoying Li, Yunhong Zhou
ELECTROCHEMISTRY COMMUNICATIONS
(2008)
Article
Electrochemistry
Lingbo Kong, Hui Zhan, Yajuan Li, Yunhong Zhou
ELECTROCHIMICA ACTA
(2008)
Article
Chemistry, Physical
Guoxia Yuan, Kelong Huang, Suqin Liu, Yajuan Li, Haiyan Wang
JOURNAL OF POWER SOURCES
(2010)
Article
Chemistry, Physical
Yajuan Li, Hui Zhan, Suqin Liu, Kelong Huang, Yunhong Zhou
JOURNAL OF POWER SOURCES
(2010)
Article
Chemistry, Physical
Yang Xu, Yajuan Li, Suqin Liu, Hongliang Li, Younian Liu
JOURNAL OF POWER SOURCES
(2012)
Article
Chemistry, Multidisciplinary
Yang Xu, Jingang Yu, Sui Peng, Suqin Liu, Zhongqiang Wei, Xianhong Li, Yajuan Li
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2012)
Article
Electrochemistry
Lingbo Kong, Hui Zhan, Yajuan Li, Yunhong Zhou
ELECTROCHEMISTRY COMMUNICATIONS
(2007)
Article
Electrochemistry
Yajuan Li, Hui Zhan, Lingbo Kong, Caimao Zhan, Yunhong Zhou
ELECTROCHEMISTRY COMMUNICATIONS
(2007)
Article
Chemistry, Physical
Yajuan Li, Hui Zhan, Lei Wu, Zaoying Li, Yunhong Zhou
SOLID STATE IONICS
(2006)
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)