Article
Electrochemistry
Chen Cai, Gary M. Koenig
Summary: To increase the energy and power density of batteries, engineering the electrode structure can provide improvements. Sintered electrodes can achieve high areal loadings, but may face electronic and/or ionic transport limitations as loadings and thicknesses increase.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Environmental
Ruibai Cang, Ke Ye, Shuangxi Shao, Kai Zhu, Jun Yan, Guiling Wang, Dianxue Cao
Summary: Aqueous batteries are suitable for large-scale storage applications due to their high safety level, low cost, and excellent durability. A new anode material, PTC-S, has been reported to be more stable in aqueous Mg-Li ion batteries compared to other electrode materials. By using PTC-S and LiMn2O4 as cathode and anode materials, a dual-ion salt aqueous battery exhibits high capacity and excellent cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Changsheng Song, Baoxun Zhao, Siyu Chen, Jinyang Ma, Hongbin Du
Summary: A new method for preparing silicon-nickel-carbon composites with high mechanical strength and ion diffusivity has been developed, improving the performance of lithium-ion batteries. The composites show stable performance during long-term cycling and exhibit better capacity retention compared to conventional materials.
Article
Chemistry, Physical
Hongxiang Ji, Liubin Ben, Shan Wang, Zhongzhu Liu, Robson Monteiro, Rogerio Ribas, Hailong Yu, Peng Gao, Yongming Zhu, Xuejie Huang
Summary: The research demonstrates that by precisely controlling the coating concentration and temperature, Nb2O5 can effectively bond to the surface of LiMn2O4 spinel cathode material, significantly improving the electrochemical performance. However, at high coating concentrations, Nb5+ ions diffuse into the cathode structure, leading to a decrease in cycling performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Jie Yang, Cuiping Gu, Mengmeng Zhao, Chunyu Meng, Xiaojing Lu, Haibo Ren, Sang Woo Joo, Jiarui Huang
Summary: In this study, Ga2O3 nanotubes coated with N-doped carbon layers were prepared using MoO3 nanorods as sacrificial templates followed by a poly-dopamine coating and heat treatment process. The resulting tubular structure provided cavities for volume changes of the Ga2O3 and shortened the migration path of Li ions and electrons, leading to improved cycling stability and rate performance of the battery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Diganta Saikia, Juti Rani Deka, Bing-Jyun Lu, Yi-Ching Chen, Jia-Wei Lian, Hsien-Ming Kao, Yung-Chin Yang
Summary: A new strategy is introduced to synthesize 3D interconnected mesoporous biomass-derived carbon using mesoporous silica as the template. Pinecone-derived carbon is successfully synthesized using mesoporous silica KIT-6 as the template. Different chemical reagents, H3BO3, K2CO3, and KOH, are employed to prepare chemically activated pinecone-derived carbons. The template-assisted pinecone-derived carbon exhibits excellent discharge capacities and long-term cycling stability in lithium-ion batteries, while also showing great potential in sodium-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Applied
Shixiong Mei, Siguang Guo, Ben Xiang, Jiaguo Deng, Jijiang Fu, Xuming Zhang, Yang Zheng, Biao Gao, Paul K. Chu, Kaifu Huo
Summary: The study reports the use of SiN-coated porous Si as a high-performance anode for lithium-ion batteries. The SiN coating prevents volume expansion and pulverization, and also provides mechanical protection and accelerated ion transport, resulting in high capacity and stable performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Manoj Muraleedharan Pillai, Nathiya Kalidas, Xiuyun Zhao, Vesa-Pekka Lehto
Summary: This review paper focuses on the development of Si and carbon anodes derived from various types of biogenic sources, particularly from plant-derived biomass resources. The biomass precursors, process/extraction methods for producing Si and carbon, the critical physicochemical properties influencing the lithium storage in LIBs, and how they affect the electrochemical performance are highlighted. The review paper also discusses the current research challenges and prospects of biomass-derived materials in developing advanced battery materials.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jun Yang, Chenrui Zhang, Jitao Geng, Yangyang Sui, Huaixin Wei, Chencheng Sun, Hongbo Geng, Yushen Liu
Summary: In this study, a novel approach of in situ chemical anchoring of nickel cobalt selenide (Ni3Se4/CoSe2) on two-dimensional black phosphorene (BP) was proposed. The resulting BP@Ni3Se4/CoSe2 heterostructure effectively buffers volume expansion and facilitates electron/ion transfer, leading to superior sodium storage performance in half cells.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Ji Ma, Yuankun Li, Xiaojie Wei, Chunting Liu
Summary: Reduction roasting strategy was employed to transform hematite into powerful anode materials to store Li+, Na+, and K+ ions, constructing a porous structure to enhance ion accessibility. The newly-designed anodes were tested for storage capacity, cycling stability, and rate performances, while cyclic voltammetry curves and electrochemical impedance spectra were measured to unveil ion-storage mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Hadi Sharifidarabad, Alireza Zakeri, Mandana Adeli
Summary: Due to the shortage of primary resources and environmental concerns, proper management of electronic waste is crucial. This study focused on the co-recycling of used zinc-carbon and lithium-ion batteries to recover manganese and lithium for the synthesis of LiMn2O4 spinel cathode. The synthesized cathode material exhibited good electrochemical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Pengfei Su, Ziqi Zhang, Linshan Luo, Zhiyong Zhang, Chaofei Lan, Yahui Li, Shaowen Xu, Xiang Han, Guangyang Lin, Cheng Li, Wei Huang, Songyan Chen
Summary: This study proposes a method combining silicon nanowire array structures with carbon nanomaterials to manufacture flexible and stretchable silicon anodes. The anodes exhibit excellent electrochemical performance and cycling stability, making them suitable for high-loading flexible energy-storage devices.
Article
Engineering, Environmental
Zhiwei Yang, Lang Qiu, Mengke Zhang, Yanjun Zhong, Benhe Zhong, Yang Song, Gongke Wang, Yuxia Liu, Zhenguo Wu, Xiaodong Guo
Summary: This study prepared an in-situ doped Si/carbon anode material using SiO2 and CO2 as raw materials, achieving nanosizing of silicon and construction of a 3D carbon network, which improved electrical conductivity and cycling performance of the battery. The simple preparation method provides a new idea for modifying silicon-based anode materials, offering valuable insights for further research on carbon doping.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Jiarui Huang, Qingshan Dai, Chengjie Cui, Hiabo Ren, Xiaojing Lu, Yong Hong, Sang Woo Joo
Summary: A cake-like porous Fe3O4 coated with a carbon layer (Fe3O4@C nanocakes) has been prepared and used as an anode for lithium-ion batteries (LIBs). The Fe3O4@C nanocakes show superior electrochemical properties and rate behavior, making them a potential electrode for LIBs with high specific capacities.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Review
Thermodynamics
Niloofar Soltani, Amin Bahrami, Lars Giebeler, Thomas Gemming, Daria Mikhailova
Summary: This review highlights recent advances in using carbon extracted from various biomass sources in rechargeable Li-, Na-, and K-ion batteries. Maximizing the energy and power densities as well as the lifetime of carbon anodes require an exploration of the right balance between carbon structures, pore morphology, chemical composition and alkali metal-ion storage. Electrode materials based on biomass-derived carbon in alkali-metal-ion batteries may allow not only technical breakthroughs, but also ethically and socially acceptable products.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2021)
Review
Chemistry, Physical
Qianyu Hu, Kunfeng Chen, Fei Liu, Mengying Zhao, Feng Liang, Dongfeng Xue
Summary: This paper provides an overview of the application and challenges of machine learning in materials prediction. Taking solid-state electrolytes as an example, it outlines the general process of machine learning in materials prediction and reviews recent approaches and specific applications. The paper also highlights the obstacles caused by disciplinary span and aims to raise awareness among materials scholars about the application of machine learning in materials prediction.
Review
Chemistry, Multidisciplinary
Xiangfei Sun, Kunfeng Chen, Feng Liang, Chunyi Zhi, Dongfeng Xue
Summary: This article reviews the material design and manufacturing technology of different micro-supercapacitors (MSCs) in recent years, along with the integration of their devices to achieve target applications. The future development directions and challenges of MSCs are also critically discussed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Ming Li, Xin Xia, Kunpeng Li, Shuxian Wu, Jie Zou, Kunfeng Chen, Gongbin Tang
Summary: SAW resonators based on 36 degrees YX-LiTaO3/SiO2/4H-SiC multilayer substrates are fabricated in this work to effectively suppress acoustic energy leakage. By using interdigital transducers (IDT) with a tilted angle, a multilayer resonator with transverse mode suppression is achieved. The results show that the multilayer resonator exhibits extremely high Bode-Q and impedance ratio, and achieves a high figure of merit.
IEEE ELECTRON DEVICE LETTERS
(2022)
Review
Materials Science, Multidisciplinary
Guoqiang Shi, Dongfeng Xue
Summary: Functional materials exhibit diverse performances due to degrees of freedom in the lattice framework. Research on quantum materials can provide insights into multiscale processes. Understanding the sources of properties of functional materials from multiple degrees of freedom is crucial for their design.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Physics, Applied
Feng Liu, Kunfeng Chen, Chao Peng, Dongfeng Xue
Summary: This study investigates the multiscale behaviors of sapphire crystal growth along different crystal directions through theoretical and experimental studies. The results show that the growth behavior of sapphire along the c-axis is more complex compared to that along the a- and m-axes, involving solid-liquid and solid-solid transformations. Moreover, an abrupt change in the interfacial structure inhibits the transformation of liquid Al2O3 into α-Al2O3 along the c-axis.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Chun Cai, Dantong Zhang, Qi Zhang, Kunfeng Chen, Wenchao Hua, Chao Peng, Dongfeng Xue
Summary: The stability of lattice oxygen and transition metal sites in LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode were systematically explored, and the importance of manganese was demonstrated. The effects of lithium vacancies on lattice oxygen and transition metal were investigated through vacancy formation energy, unpaired spins, and net charge. This study provides insights into oxygen release and transition metal dissolution in Ni-rich NCM811.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Editorial Material
Multidisciplinary Sciences
Feng Liu, Kunfeng Chen, Dongfeng Xue
Summary: Large-size crystals are essential in various fields, but their preparation remains difficult. Making breakthroughs in the theory and technology of large-size crystal growth is one of the top challenges in science and technology. Artificial intelligence is expected to play a significant role in achieving fast and large-size crystal growth.
Article
Chemistry, Multidisciplinary
Fei Liu, Mengying Zhao, Kunfeng Chen, Mei Hu, Dongfeng Xue
Summary: This work demonstrates that Ce3+-regulated CoNi-LDHs significantly enhance the kinetics of electron transfer and ion motion by increasing layer positive charges and weakening O-H bonds. The addition of Ce3+ also decreases the energy barrier of proton diffusion and increases the hole carrier concentration, resulting in high rate capacitance and fast charge storage kinetics.
Article
Chemistry, Multidisciplinary
Xianjie Zhang, Feng Liu, Kunfeng Chen, Guilin Zhuang, Chao Peng, Dongfeng Xue
Summary: Investigating the liquid structure of yttrium aluminum garnet (YAG) at high temperatures is significant for various fields, and molecular dynamic simulations were used to study the structure of YAG within a certain temperature range and to grow a YAG single crystal. The coordination number and bond length between cations and anions changed after melting, which can be explained by Pauling's third rule. In the liquid YAG, the coordination number decreased and the main structural units were AlO4 and YO7, which provided insight into phase selection and enabled rapid growth of YAG using the Czochralski method.
Proceedings Paper
Engineering, Electrical & Electronic
Ming Li, Xin Xia, Kunpeng Li, Shuxian Wu, Kunfeng Chen, Jie Zou, Gongbin Tang
Summary: SAW devices based on multilayer substrate offer excellent solution for higher performance filters in the RF industry due to their high-quality factors, small temperature coefficient of frequency, and high stability. In this study, SAW resonators based on a multilayer substrate were simulated and fabricated, achieving a spurious free response and high figure of merit through careful selection of material thickness and calculation of power flow angle.
2022 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON ADVANCED MATERIALS AND PROCESSES FOR RF AND THZ APPLICATIONS, IMWS-AMP
(2022)