Article
Engineering, Environmental
Hengtao Shen, Yongling An, Quanyan Man, Jingyan Wang, Chengkai Liu, Baojuan Xi, Shenglin Xiong, Jinkui Feng, Yitai Qian
Summary: In this work, controlled chemical prelithiation is used to improve the performance of two-dimensional siloxene nanosheet as an anode for lithium-ion batteries. The results show that a 15 min prelithiation process can achieve uniform SEI film and high coulombic efficiency, leading to enhanced performance of siloxene anode. The prelithiated siloxene anode exhibits high ICE, superior rate performance, and stable cycling performance, with an enhanced capacity retention of 94.3% when coupled with 5 V-class LiNi0.5Mn1.5O4 cathodes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yixian Pei, Yuxin Wang, An-Yi Chang, Yixin Liao, Shuan Zhang, Xiufang Wen, Shengnian Wang
Summary: In this study, silicon-rich composite anodes with a nanofiber-in-microfiber architecture were prepared using co-axial electrospinning. The composites showed excellent electrochemical performance, achieving a specific capacity of 900mAh/g and a capacity retention of 90% from cycle 50 to cycle 250. The unique fibrous morphology and void space in between the nanofibers helped address the volume expansion issues associated with silicon-rich anodes.
Article
Materials Science, Multidisciplinary
Yuchan Zhang, Liwen Tan, Yang Wu, Yongling An, Yongpeng Liu, Yusheng Wang, Chuanliang Wei, Baojuan Xi, Shenglin Xiong, Jinkui Feng
Summary: By designing a room temperature liquid metal (LM) matrix confined siloxene structure and incorporating LM into the electrode, the modified siloxene anode demonstrates improved conductivity and cyclic stability.
APPLIED MATERIALS TODAY
(2022)
Article
Energy & Fuels
Ikramul Hasan Sohel, Tarik Ozturk, Umut Aydemir, Naeimeh Sadat Peighambardoust, Ozgur Duygulu, Isil Isik-Gulsac, Mustafa Altun, Mehmet Nurullah Ates
Summary: This study presents a simple method to enhance the stability of electroplated Silicon (Si) electrodes through heat treatment. The cycling stability of the Si anode improves significantly with increasing heat treatment temperature. The Si electrode heat treated at 400 degrees C maintains 77% capacity even after exposure to air for one week.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yaodong Ma, Pengqian Guo, Mengting Liu, Pu Cheng, Tianyao Zhang, Jiande Liu, Dequan Liu, Deyan He
Summary: Porous carbon coated silicon nanoparticles were prepared as anode materials for lithium-ion batteries to suppress the volume expansion effect of silicon and improve the infiltration of electrolyte and the diffusion of lithium ions. The mass ratio of the anode materials effectively controlled the specific capacities and reduced production cost.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Qiuyan Li, Ran Yi, Yaobin Xu, Xia Cao, Chongmin Wang, Wu Xu, Ji-Guang Zhang
Summary: This study focuses on the design and failure analysis of a silicon (Si) anode for lithium-ion batteries (LIBs). The volumetric energy density of the Si anode depends heavily on factors such as Si/C loading, anode calendering density, first-cycle coulombic efficiency, and anode capacity density. Stable Si/C electrode structure is crucial for long-term cycling, and the degree of prelithiation needs to be balanced with cycle life.
JOURNAL OF POWER SOURCES
(2022)
Review
Nanoscience & Nanotechnology
Xiuyun Zhao, Vesa-Pekka Lehto
Summary: Batteries are crucial for reducing carbon emissions, and both energy production and storage technologies must adhere to green guidelines. To achieve sustainability goals, battery performance needs to be enhanced, and materials must support large-scale production.
Article
Chemistry, Physical
Rongxian Wu, Xiaofan Du, Tao Liu, Xiangchun Zhuang, Peng Guan, Bingqian Zhang, Shenghang Zhang, Chenhui Gao, Gaojie Xu, Xinhong Zhou, Guanglei Cui
Summary: By pre-constructing an artificial SEI layer, the modified SiOx anode exhibits higher ICE, better capacity retention and superior rate capability, improving the applicability and performance of SiOx-based anodes.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Hyocheol Lee, Anjali Nagapadi Preman, Thuan Ngoc Vo, Jin-Hyeong Lee, Il Tae Kim, Suk-kyun Ahn
Summary: In order to overcome the rapid capacity decay of silicon as a battery material, researchers have synthesized a series of multifunctional acrylic random copolymer binders and modulated their adhesive and mechanical properties. By adding acrylic acid and glyceryl groups, these binders can undergo in situ crosslinking at lower temperatures, leading to improved electrochemical performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Bo Tang, Shenggong He, Yayu Deng, Yan Shan, Haiqing Qin, Hadia Noor, Xianhua Hou
Summary: A 3D-crosslinked binder with ultralow-content has been designed to enhance the electrochemical performance and energy density of silicon anode. This binder, synthesized using partially lithiated Carboxymethyl Cellulose Sodium (LiCMC) as a skeleton structure and Tannic Acid (TA) as a cross-linker, is capable of tolerating the volume variation of the silicon anode and relieving the stress of silicon through multiple hydrogen bonding interaction. Experimental results demonstrate high initial Coulombic efficiency and excellent reversible capacity of the binder.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Qiang Zhang, Yuxin Yu, Haojie Li, Fengying Zhang, Yaodong Liu
Summary: In this study, a series of silicon containing polyimides and polyamides were synthesized and characterized as binders for silicon-based anodes. It was found that the swelling ratio, adhesion strength, and hardness of the binders played important roles in the initial Coulombic efficiency (ICE) and capacity retention of silicon-based anodes. By optimizing the chemical structures and physical properties of the binders, high specific capacity, high initial Coulombic efficiency, and good capacity retention were achieved.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Jian Yu, Chaoran Zhang, Weidong Wu, Yuankun Cai, Yafei Zhang
Summary: Silicon has garnered attention for its high specific capacity and abundant reserves, but its volumetric changes during charging and discharging processes have hindered industrial utilization. This study introduces a novel hybrid anode material, Si@void/CNF, designed with a nodes-connected structure that provides both a conductive reticulation for silicon nanoparticles and addresses volume variation. By adjusting the mass ratio of silicon to PMMA, an optimal structure was achieved, demonstrating excellent electrochemical performance with high specific capacity and cycling stability. The electrospun structure of nodes-connected Si@void/CNF offers a promising method for fabricating advanced silicon-based anode materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Dong Sui, Min Yao, Linqi Si, Kun Yan, Jingge Shi, Jianshe Wang, Charles Chunbao Xu, Yongsheng Zhang
Summary: In this study, advanced SiO2 anodes were prepared by coating hollow SiO2 nanotubes (SNTs) with lignin or phenolated and depolymerized lignin furfural resin (PDLF)-derived carbon. The novel structure of SNTs effectively promotes both Li+ and electron transport, increases active sites for Li+ insertion and accommodates the volume change. SNTs@C-PDLF demonstrates higher specific capacity (661 mAh g(-1) at 100 mA g(-1)), superior rate capability (262 mAh g(-1) at 3000 mA g(-1)), and better cycling stability (549 mAh g(-1) at 1000 mA g(-1) after 800 cycles) compared to SNTs@C-lignin and pristine SNTs.
Review
Chemistry, Physical
Peng Li, Hun Kim, Seung-Taek Myung, Yang-Kook Sun
Summary: This review highlights the necessity of co-exploitation of silicon and graphite, and systematically concludes the key issues, challenges, and perspectives of Si-graphite electrodes. Through a deep understanding of associated electrochemical processes, the component and structural optimization of Si-graphite anodes could be effectively enhanced.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xu Liu, Huitian Liu, Yuhao Cao, Xiaochen Wu, Zhongqiang Shan
Summary: Chemical-expanded graphite (CEG) is used as a carbon matrix to form Si@CEG/C composites with an embedded structure, effectively addressing the challenges posed by volume change and electrochemical interface of Si anode. The embedded structure enables better cycling performance and rate capability for Si@CEG/C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Keli Zhang, Yonggao Xia, Zhengdong Yang, Rusheng Fu, Chengxu Shen, Zhaoping Liu
Article
Electrochemistry
Rusheng Fu, Zhenzhen Chang, Chengxu Shen, Haocheng Guo, Heran Huang, Yonggao Xia, Zhaoping Liu
ELECTROCHIMICA ACTA
(2018)
Article
Chemistry, Multidisciplinary
Chengxu Shen, Rusheng Fu, Yonggao Xia, Zhaoping Liu
Article
Chemistry, Multidisciplinary
Qin Wang, He Miao, Shanshan Sun, Yejian Xue, Zhaoping Liu
CHEMISTRY-A EUROPEAN JOURNAL
(2018)
Article
Chemistry, Multidisciplinary
Rusheng Fu, Yongkang Wu, Chongzhao Fan, Zuxin Long, Guangjie Shao, Zhaoping Liu
Article
Chemistry, Physical
Chengxu Shen, Rusheng Fu, Haocheng Guo, Yongkang Wu, Chongzhao Fan, Yonggao Xia, Zhaoping Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Chemistry, Multidisciplinary
Yongkang Wu, Rusheng Fu, Chongzhao Fan, Zuxin Long, Guangjie Shao, Zhaoping Liu
Article
Chemistry, Multidisciplinary
Chengxu Shen, Muhammad Hamid Raza, Patrick Amsalem, Thorsten Schultz, Norbert Koch, Nicola Pinna
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)