Article
Chemistry, Multidisciplinary
Hongwei Tang, Mengyue Liu, Lingna Kong, Xiaoyan Wang, Yue Lei, Xige Li, Yan Hou, Kun Chang, Zhaorong Chang
Summary: In this study, Fe3O4/MoS2/NiS composite electrodes were successfully synthesized, and the addition of MoS2 and NiS effectively improved the performance of iron anodes, enhancing the reversibility capacity. The composite electrodes exhibited high specific capacity, good rate performance, and cycling stability, with the Fe3O4/MoS2 (5%)/NiS (5%) electrode showing the best electrochemical performance.
Article
Multidisciplinary Sciences
Yanfei Zeng, Xinyi Zhang, Xianxing Mao, Pei Kang Shen, Douglas R. MacFarlane
Summary: The Ni-Fe battery is a promising alternative to lithium-ion batteries due to its long life, high reliability, and eco-friendly characteristics. By controlling the valence state of iron and coupling with carbon, the issues of passivation and self-discharge of the iron anode can be solved. The hybrid anode developed shows high specific capacity and cyclic stability, with a Ni-Fe button battery exhibiting specific device energy and good capacity retention and coulombic efficiency.
Article
Materials Science, Multidisciplinary
Yaxiong Yang, Shugang Liu, Zhe Dong, Zhenguo Huang, Cheng Lu, Yongjun Wu, Mingxia Gao, Yongfeng Liu, Hongge Pan
Summary: This study demonstrates an effective hierarchical conformal coating strategy for high-performance microsized Si anodes, which enhances mechanical properties, promotes ionic diffusion, stabilizes electrode/electrolyte interfaces, and increases electronic conductivity. The optimized structure achieves high reversible capacity, cycling stability, and rate capability.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Taehyun Yoo, Ji Young Maeng, Seungman Park, Minjun Bae, Yonghwan Kim, Juhyung Choi, Hwichan Hong, Seon Jae Hwang, Eunji Lee, Yuanzhe Piao
Summary: This study reports the synthesis of cobalt iron phosphide@graphitic carbon nitride nanosheet (CFP@CN) modified separator for lithium-sulfur batteries. The Li-S cell with CFP@CN separator exhibits high specific capacity, low capacity decay rate, and high coulombic efficiency, which can alleviate the shuttle effect and sluggish redox kinetics. These results provide useful insights for designing materials for modified separators of lithium-sulfur batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Yer-Targyn Tleukenov, Gulnur Kalimuldina, Anar Arinova, Nurbolat Issatayev, Zhumabay Bakenov, Arailym Nurpeissova
Summary: This study achieved significant improvement in cycling stability and electrochemical performance by creating a defect-free conformal coating for NiO/Ni anode using a thermal oxidation technique and polymer electrolyte.
Article
Engineering, Environmental
Wanlong Wu, Xianpeng Yang, Kuo Wang, Cuicui Li, Xiang Zhang, Hua-Yu Shi, Xiao-Xia Liu, Xiaoqi Sun
Summary: In this study, the deposition behavior of iron metal electrodes was regulated by zinc doping, resulting in the formation of homogeneous small particles and achieving high coulombic efficiency and stability. This research has potential implications for the development of high-performance aqueous iron-metal batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Luping Li, Shuang Cheng, Liyu Deng, Ting Liu, Wenju Dong, Yuxiu Liu, Longjun Huang, Huan Yao, Xu Ji
Summary: In this study, a dual protective strategy was proposed to solve the anode-related problems in Ni-Zn batteries, effectively reducing self-corrosion and hydrogen evolution reaction with ZnO@C and ZnO@C-PVA coatings. The alkaline Ni-Zn cells demonstrated good electrochemical performance and durability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Quanrong Pan, Suqin Liu, Yuliang Yang, Guanying Ye, Xincun Tang, Jue Wang
Summary: This study designs highly graphitic hollow spheres (HGHS) to address the poor long-term stability issue of graphite anode in potassium-ion batteries (PIBs). HGHS with high porosity and highly graphitic carbon layer exhibit outstanding stability and storage performance. This study provides an effective strategy for improving the stability of graphite anode in low-cost PIBs.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Environmental
Guohui Wang, Dong-Sang Kim, Matthew J. Olszta, Mark E. Bowden, Daniel K. Schreiber, Sarah A. Saslow, Wooyong Um, Brian J. Riley, Jing Wang, Albert A. Kruger
Summary: This study demonstrates that Ni doping during the transformation of Fe(OH)(2)(s) into iron spinel can enhance the sequestration of Tc in aqueous solutions, resulting in the formation of metallic Tc and achieving nearly complete Tc removal.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Yuxiu Liu, Luping Li, Xu Ji, Lexuan Yang, Juan Li, Shuang Cheng
Summary: An effective strategy is proposed to overcome/alleviate the challenges faced by Zn-based anodes in alkaline Ni-Zn batteries, including Zn dendrites, hydrogen evolution reaction (HER), corrosion, deformation, and passivation. This strategy involves the preparation of micron-sized ZnO with spherical structure as active materials, introducing Ga to increase the initial conductivity, and coating a thin carbon layer onto the ZnO to enhance conductivity and prevent direct contact with the electrolyte. The optimized material GZO@C exhibits high capacity and good rate performance without obvious capacity decay or morphology change.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jae Seob Lee, Rakesh Saroha, Se Hwan Oh, Dong Hyeok Shin, Sang Mun Jeong, Jae-Kwang Kim, Jung Sang Cho
Summary: Highly conductive 3D ordered mesoporous Ni7S6-MoS2/N-doped graphitic carbon (NGC) composite microspheres were prepared as an anode material for Na-ion batteries, demonstrating superior electrochemical performance, high cycling stability, and fast charge transfer.
Article
Chemistry, Physical
Kuikui Xiao, Jian-Fang Wu, Hanghang Yan, Ying Mo, Wang Zhou, Yufan Peng, Shi Chen, Xiangyang Cui, Lei Chen, Chaohe Xu, Jilei Liu
Summary: This study successfully addresses the challenges of uncontrollable dendrite growth and generation of dead potassium by constructing composite anodes with aligned carbon fiber on the surface of metallic potassium anodes. It improves the stability and cycle life of potassium batteries.
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hui Jin, Renjie Ji, Tiancong Dong, Shuo Liu, Fan Zhang, Lilong Zhao, Chi Ma, Baoping Cai, Yonghong Liu
Summary: The study prepared nickel-iron coatings enhanced with WC particles through jet electrodeposition and found that increasing the deposition temperature can help obtain higher numbers of hard particles. Various tests showed that WC particles can improve the corrosion resistance of the coating, and an appropriate proportion of WC particles can effectively reduce corrosion.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Energy & Fuels
Niranjala Fernando, Harikishan Kannan, Francisco C. Robles Hernandez, Pulickel M. Ajayan, Ashokkumar Meiyazhagan, Amr M. Abdelkader
Summary: Currently, various graphite-Nickel Oxide (NiO) composites have been examined as anodes for Li-ion batteries, but finding an ideal composite that overcomes NiO's electrical conductivity limitations is still a challenge. In this study, a one-step hydrothermal technique was used to integrate NiO into a 3D graphitic nanostructure, resulting in unique thin nanosheet arrays with porous, conductive channels. The composite showed controlled aggregation and restacking of NiO, buffered electrode stress, improved electrical conductivity, and enhanced Li-ion insertion, leading to an impressive electrochemical improvement and high capacity retention.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Maria Jose Piernas Munoz, Elizabeth Castillo-Martinez, Eider Goikolea, Pablo Blanco, Estibaliz Legarra, Jose Javier S. Garitaonandia, Soojeong Kim, Timothy T. Fister, Christopher S. Johnson, Teofilo Rojo
Summary: Through various measurement techniques, we have examined in detail the reaction mechanism of potassium Prussian blue within a specific voltage range and confirmed the conversion reaction process of this material. The generation of Fe0 was confirmed and the reduction process of two different iron species in Prussian blue was revealed. During the charge process, Fe0 preferentially oxidizes to Fe+, which plays a crucial role in reducing the overpotential.
CHEMISTRY OF MATERIALS
(2022)
