Article
Chemistry, Multidisciplinary
Ulrich Rist, Viktoria Falkowski, Wilhelm Pfleging
Summary: Laser-induced forward transfer (LIFT) technology was used to develop advanced electrode architectures and improve the electrochemical properties of batteries. The printing process was found to have no effect on the electrochemical performance of the battery materials. Multilayer electrodes with different particle types were printed and showed promising specific capacities. The LIFT technology provides the possibility for alternative electrode designs and optimization of 3D battery systems.
Article
Chemistry, Analytical
Mariela G. Ortiz, Arnaldo Visintin, Silvia G. Real
Summary: A simple, green, cheap, and scalable approach to fabricate nickel oxides materials for lithium-ion batteries has been developed in this work. The prepared compounds show specific discharge capacity values of around 500 mAh g-1 at a C-rate of 0.2C, with 78% capacity retention after 100 cycles and satisfactory rate performance and cycling stability. These electrochemical properties are correlated with their kinetic parameters.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jie Lin, Laisen Wang, Qingshui Xie, Qing Luo, Dong-Liang Peng, C. Buddie Mullins, Adam Heller
Summary: Passivation of stainless steel by additives forming mass-transport blocking layers is extended to Si anodes for lithium-ion batteries, incorporating the passivator of LiF/Li2CO3 into bulk Si. The passivation mechanism is studied and it is found to enhance the (de)lithiation of Li-Si alloys, induce the formation of F-rich solid electrolyte interphase, stabilize the Si/LiF/Li2CO3 composite, and mitigate the volume change of Si anodes. The 3D passivated Si anode shows excellent cycling stability and high rate capability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Green & Sustainable Science & Technology
M. Falco, G. Lingua, M. Destro, L. Silvestri, G. Meligrana, R. Lin, S. Fantini, G. Maresca, A. Paolone, S. Brutti, G. B. Appetecchi, G. A. Elia, C. Gerbaldi
Summary: Silicon is an attractive anode material for Li-ion batteries due to its high capacities and abundance. However, its poor cycling stability is a major challenge. In this study, we investigated different room temperature ionic liquid (RTIL)-based electrolytes and found that FSI-based RTILs exhibited superior performance in supporting Si-based electrodes.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Shuai Xu, Xiaodong Hou, Dongniu Wang, Lucia Zuin, Jigang Zhou, Yong Hou, Michael Mann
Summary: In this study, the structure and composition evolution of SiO and graphene-coated SiO under different heat treatment conditions were investigated, revealing the structural transition of SiO during heat treatment and the improved electrochemical performance by graphene coating.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Wonbin Nam, Honggyu Seong, Joon Ha Moon, Youngho Jin, Geongil Kim, Hyerin Yoo, Taejung Jung, MinHo Yang, Se Youn Cho, Jaewon Choi
Summary: In this study, the authors propose a synthesis strategy of nano-sized α-MnS and a one-step composite process by growing nanoparticles on the surface of reduced graphene oxide (rGO). These strategies effectively prevent particle aggregation and enhance electrochemical stability. The α-MnS@rGO composite exhibits high specific capacity, good cycling stability, and excellent rate capability compared to bare α-MnS.
BATTERIES & SUPERCAPS
(2023)
Article
Engineering, Electrical & Electronic
Xiaolei Sun, Li Qiao
Summary: In this study, silicon particles were synthesized from bio-silica powders derived from diatomaceous shales, and functional nanostructures were constructed to achieve high reversible capacities and excellent rate capability in silicon electrodes. The as-synthesized silicon particles exhibited fine crystallinity without impurity phases, indicating great potential for applications in next-generation high performance lithium ion batteries.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Review
Chemistry, Physical
Mohammed Salah, Colin Hall, Candice Francis, Greg Rollo-Walker, Manrico Fabretto
Summary: Silicon-alloy is a promising replacement for carbon as an anode material due to its high specific capacity. However, its practical applications are hindered by high electrical resistance and large volume change during charge/discharge cycling. To overcome these issues, alloying with lithium-active or lithium-inactive materials has been explored. Germanium, tin, and carbon are the most promising materials for improving electrochemical performance, while silicon alloyed with copper, titanium, and vanadium can enhance capacity retention. However, more research is needed to determine the optimal alloying material, concentration, and structure.
JOURNAL OF POWER SOURCES
(2022)
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)
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.
Review
Chemistry, Physical
Mohammed Salah, Colin Hall, Peter Murphy, Candice Francis, Robert Kerr, Bastian Stoehr, Sam Rudd, Manrico Fabretto
Summary: Silicon has been considered as a replacement for carbon anodes in lithium ion batteries due to its potential advantages, but challenges such as low electronic conductivity and volume changes have hindered its widespread use. Studies have looked into ways to improve silicon thin films with doped and reactive forms, with doped silicon generally showing better results attributed to higher electronic conductivity. Further research is needed for the development of hydrogenated silicon films and systematic investigations are warranted.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Poonam Sehrawat, Abgeena Shabir, Abid, C. M. Julien, S. S. Islam
Summary: This review discusses the progress made in silicon/graphene nanocomposite chemistry for improving LIBs performance in the last five years, as well as the impact of different structural innovations on electrode properties.
JOURNAL OF POWER SOURCES
(2021)
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
Nanoscience & Nanotechnology
Yao Gao, Lei Fan, Rui Zhou, Xiaoqiong Du, Zengbao Jiao, Biao Zhang
Summary: The incorporation of Sn and Sb in Si anodes enhances the electronic conductivity and lithium diffusivity, reducing stress and improving the performance. Si8.5Sn0.5Sb microparticles exhibit improved conductivity and diffusivity, achieving high capacity and cycling stability.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Hongfei Yang, Zhenzhong Zhang, Jia Cai, Borui Yang, Dong Fan, Fangxia Zhao
Summary: By preparing porous SiO through silver-assisted chemical etching and then chemically nickel-plating to form porous SiO/Ni composite materials, the expansion issue of silicon monoxide can be alleviated, and the electrochemical performance of the electrode can be improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
