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
Chen Pan, Shu-Jing Chen, Yu-Hui Huang, Lei Wang, Jing-Li Luo, Xian-Zhu Fu
Summary: This article fabricates lightweight copper-coated polyimide current collectors with high electrical conductivity and low area density using a facile electroless copper deposition method. Compared with traditional copper foil current collectors, lithium titanate anodes equipped with the coated current collectors reduce the inactive component mass ratio and improve the gravimetric capacity. The rough surface morphology of the deposited copper layers reduces the electrode layer/current collector interfacial resistance, resulting in lower internal resistance and better rate capability.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Environmental
Qiujiang Dong, Wanxing Zhang, Meng Gao, Shiyu Zhang, Yuan Liu, Zhaoyong Sun, Qiang Chen, Jiajun Wang, Xiaopeng Han, Wenbin Hu
Summary: In this study, a rapid electroless in-situ Sn modification process was used to produce high-performance, large-area, and ultra-thin anode current collectors for lithium metal batteries. The modified current collectors showed impressive Li plating/stripping performance and good adaptability to major commercialized cathodes. Preliminary validation in pouch batteries demonstrated the prospects of these current collectors for further applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Xuexian Wu, Shujing Chen, Danni Liu, Chunyi Ye, Fengzhan Si, Yan Zhang, Yang Yang, Jing-Li Luo, Xian-Zhu Fu
Summary: This article develops lightweight and flexible current collectors by laser drilling polyimide film substrates to create through-hole arrays. Three-dimensional conductive paths are formed by electroless copper deposition on the polyimide films. The current collectors exhibit higher electrode mass-specific capacity and better tensile deformation performance compared to commercial copper foil in LIBs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Yu-Kai Huang, Heyin Chen, Leif Nyholm
Summary: The nucleation of lithium directly on the copper current collector in anode-free lithium-metal batteries is limited by poor control and diffusion of lithium into the copper substrate via grain boundaries. Prelithiation of the copper surface improves the nucleation process by saturating the surface with lithium, reducing the influence of lithium diffusion. This leads to more homogeneous lithium nucleation, especially when a short potentiostatic nucleation pulse is applied.
Article
Chemistry, Multidisciplinary
Jonas Schlaier, Sahin Cangaz, Sebastian Maletti, Christian Heubner, Thomas Abendroth, Michael Schneider, Stefan Kaskel, Alexander Michaelis
Summary: This study reports a facile and scalable Cu electrodeposition process to tailor the topography of Cu current collectors for the directed formation of columnar Si anodes. By adjusting the Cu-ECD parameters, the topography of the current collectors can be controlled, resulting in a significant increase in cycling stability of the Si anodes.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Kenan Zhong, Xueyang Hou, Yihan Xue, Wenlong Huang, Bicheng Meng, Lijiao Zhou, Zhao Fang, Linbo Li
Summary: In this paper, dendrite-free lithium deposition is achieved by preparing Dendritic Copper Foam Current Collector (DCFC) using an electrometallurgy method. The DCFC significantly reduces the nucleation energy and deposition overpotential of lithium metal, showing great potential for the commercial application of lithium metal anode.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
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, Multidisciplinary
Timofey Gevel, Sergey Zhuk, Natalia Leonova, Anastasia Leonova, Alexey Trofimov, Andrey Suzdaltsev, Yuriy Zaikov
Summary: This study focused on the electrolytic production of nanosized silicon from low-fluoride melts, and its application in fabricating a Si/C composite anode for lithium-ion batteries. It was found that the Si/C composite based on silicon synthesized from KCl-K2SiF6-SiO2 melt showed better cycling stability and higher capacity retention, demonstrating its potential for high-performance lithium-ion batteries.
APPLIED SCIENCES-BASEL
(2021)
Article
Energy & Fuels
Manman Zhao, Xianli Huang, Dongmei Zhuang, Lei Sheng, Xin Xie, Min Cao, Junjie Pan, Haiyun Fan, Jianping He
Summary: By preparing a composite current collector with a porous nanospheres structure (Cu3N-NS/Cu), this study improves the cyclic reversibility and lithium deposition morphology of lithium metal batteries. The composite collector has a higher specific surface area, which benefits the diffusion of lithium ions and reduces the local current density of the electrode.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Multidisciplinary Sciences
Shuo Jin, Jiefu Yin, Xiaosi Gao, Arpita Sharma, Pengyu Chen, Shifeng Hong, Qing Zhao, Jingxu Zheng, Yue Deng, Yong Lak Joo, Lynden A. Archer
Summary: Aqueous zinc batteries have potential for cost-effective and safe electricity storage. Researchers have developed an in situ formed nanometric interphase strategy to enable fast-charging of aqueous zinc cells, achieving highly reversible cycling at high current densities and capacities.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Inyeong Yang, Ji-hun Jeong, Jae Young Seok, Sanha Kim
Summary: By increasing structural dimensions and introducing hierarchy, the formation of Li dendrites on Li-metal anode can be stabilized, resulting in extended cycling life and improved reversibility.
ADVANCED ENERGY MATERIALS
(2023)
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)
Review
Chemistry, Multidisciplinary
Alireza Fereydooni, Chenghao Yue, Yimin Chao
Summary: This review provides a brief history of Si-NPs' usage in LIBs and discusses strategies employed to overcome their drawbacks, aiming to inspire and offer valuable insights for future research endeavors.
Article
Chemistry, Physical
Zhiwen Wang, Dong Cao, Mingxi Ren, Hanning Zhang, Limei Pan, Chuanfang John Zhang, Jian Yang
Summary: A Si@Ti3C2Tx composite with a fluffy and porous structure was prepared using a simple suspension mixing-freeze drying process, which can effectively improve the stability and cycling efficiency of silicon nanoparticles in lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(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)