Article
Chemistry, Multidisciplinary
Jaehoon Choi, Omid Zabihi, Mojtaba Ahmadi, Minoo Naebe
Summary: This study presents a promising approach for fabricating high-performance structural batteries with enhanced energy storage and structural capabilities.
Article
Electrochemistry
R. Drummond, C. Cheng, P. S. Grant, S. R. Duncan
Summary: Graded electrodes in Li-ion batteries can improve battery performance by reducing degradation rates and increasing capacity at high discharge rates. However, the mechanisms and conditions for achieving these performance benefits are not fully understood. This study develops an electrochemical model and validates it using experimental data, revealing that a localized carbon-enriched region at the electrode/current collector interface can decrease overpotential distribution and improve charge transfer resistance and impedance.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Eloi Grignon, Alicia M. Battaglia, Tyler B. Schon, Dwight S. Seferos
Summary: This article discusses the strategies for designing organic cathode materials for rechargeable zinc-ion batteries, emphasizing the importance of cost analysis, synthetic simplicity, end-of-life scenarios, areal loading of active material, and long-term stability in materials design.
Article
Chemistry, Physical
Philip Minnmann, Florian Strauss, Anja Bielefeld, Raffael Ruess, Philipp Adelhelm, Simon Burkhardt, Soeren L. Dreyer, Enrico Trevisanello, Helmut Ehrenberg, Torsten Brezesinski, Felix H. Richter, Juergen Janek
Summary: Solid-state batteries are gaining attention as a potentially safe electrochemical high-energy storage concept. However, there are still challenges in designing cathode active materials that are compatible with superionic solid electrolytes. This perspective provides an overview of the required properties and challenges of inorganic cathode active materials used in solid-state batteries, and proposes guidelines for future development.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Buddha Deka Boruah, Bo Wen, Michael De Volder
Summary: A novel photorechargeable lithium-ion battery has been proposed, which can be charged using light. This battery utilizes photocathodes made from vanadium pentoxide nanofibers mixed with P3HT and rGO additives, leading to significant improvements in capacity and conversion efficiency.
Article
Chemistry, Physical
Pallavi Thakur, Khorsed Alam, Prasenjit Sen, Tharangattu N. Narayanan
Summary: By incorporating -OH functionalities into the cathode through polysaccharide addition, the discharge capacity and cyclability of Li-O2 batteries are enhanced. This rational design route provides high capacities for the emergent Li-O2 batteries.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Axiang Li, Zhuolin Rong, Bing Yuan, Fangyi Cheng, Wangqing Zhang
Summary: We synthesized crosslinked polyimides by condensation polymerization between 3,4,9,10-perylenetetracarboxylic dianhydride and 1,2-ethanediamine in the presence of a trifunctional crosslinker of diethylenetriamine. The crosslinked polyimides exhibited a porous structure with a high surface area. When used as cathode materials in lithium metal half-cells, the crosslinked polyimides showed a high discharge capacity of 160.3 mA h g-1 at a current density of 30 mA g-1, and the assembled lithium-ion batteries retained 77% capacity after 2000 cycles at a current density of 150 mA g-1, surpassing the performance of batteries with linear polyimides.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Munsoo Song, Danwon Lee, Juwon Kim, Yumin Heo, Chihyun Nam, Donghyuk Ko, Jongwoo Lim
Summary: By modifying electrolyte concentration, the correlation between the amount of CO2 evolution and the population of free ethylene carbonate (EC) was investigated. It was found that CO2 evolution and anodic dehydrogenation were higher in an environment enriched with free EC. 1H nuclear magnetic resonance spectroscopy confirmed the formation of vinylene carbonate. Thus, it was concluded that free EC near the surface of the electrode facilitates the chemical decomposition of Li2CO3.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Till-Niklas Kroeger, Mathis Jan Woelke, Patrick Harte, Thomas Beuse, Martin Winter, Sascha Nowak, Simon Wiemers-Meyer
Summary: This work investigates the electrochemical response of layered lithium transition metal oxides LiMO2 [M=Ni, Mn, Co] to slow and fast charging protocols, and examines the implications of incomplete and heterogeneous redox reactions on the utilization of active materials. The study reveals that the size of active materials and the microstructural and chemical characteristics of composite electrodes play crucial roles in the heterogeneous distribution of state of charge (SOC).
Article
Chemistry, Multidisciplinary
Juho Valikangas, Petteri Laine, Tao Hu, Pekka Tynjala, Marcin Selent, Palanivel Molaiyan, Kahr Juergen, Ulla Lassi
Summary: This study explores the effects of further processing on the electrochemical performance of the LiNi0.975Al0.025O2 cathode material. Washing the material surface forms a nonconductive nickel oxide phase, reducing initial capacity and enhancing cycle properties. The secondary heat treatment re-lithiates the surface nickel oxide back to the cathode material, increasing initial capacity and cycle properties. Avoiding long-term high voltage charging significantly improves the cycle life.
Article
Chemistry, Physical
Michael Yi, Zehao Cui, Hugo Celio, Arumugam Manthiram
Summary: High-nickel layered oxides are widely used as cathode materials for high-energy density lithium-based batteries. However, their surface air instabilities hinder mass production. This study finds that the average oxidation state of nickel is the critical parameter influencing the air stability, which is greatly affected by the contents of manganese and cobalt.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Friederike Reissig, Sebastian Puls, Tobias Placke, Martin Winter, Richard Schmuch, Aurora Gomez-Martin
Summary: Ni-rich layered oxide cathodes are promising candidates for automotive applications. Aqueous processing of these materials using a lithium polyacrylate-based binder can achieve comparable cycling performance to electrodes processed with toxic solvents.
Article
Chemistry, Physical
Huangkai Zhou, Jun Izumi, Sho Asano, Kotaro Ito, Kenta Watanabe, Kota Suzuki, Fumiya Nemoto, Norifumi L. Yamada, Kohei Aso, Yoshifumi Oshima, Ryoji Kanno, Masaaki Hirayama
Summary: This study investigates the effect of oxide modification on the fast lithium intercalation on cathode surfaces using in situ neutron reflectometry. The results show that the modified cathode exhibits superior rate capability due to the formation of a dense cathode-electrolyte interphase (CEI). The fast desolvation of lithium on the CEI contributes to the high rate capability of surface-modified cathodes.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jun Ma, Junxiong Wang, Kai Jia, Zheng Liang, Guanjun Ji, Zhaofeng Zhuang, Guangmin Zhou, Hui-Ming Cheng
Summary: This study focuses on the recycling of spent lithium-ion batteries (LIBs) by using a eutectic salt system. By employing a simple one-step heating strategy, the capacity and cycling performance of the cathode materials in the batteries can be improved.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Mingzhe Chen, Yunfei Liu, Yanyan Zhang, Guichuan Xing, Yuxin Tang
Summary: The high capacity of lithium-rich oxides has led to investigations on both cationic and anionic redox processes. The focus has recently shifted towards anionic redox behavior as a new direction for achieving higher-energy cathodes for lithium-ion batteries. However, practical issues such as voltage decay and irreversible oxygen loss have motivated researchers to design novel lithium-rich sulfides/selenides. This perspective provides an in-depth discussion on the development of these materials, their lithium storage mechanism, and the potential for higher energy densities, as well as outlining the main challenges for their application in next-generation lithium-ion batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Han-Bo Jung, Jin-Woo Kim, Ji-Ho Lim, Do-Kyun Kwon, Doo Hyun Choi, Dae-Yong Jeong
ELECTRONIC MATERIALS LETTERS
(2020)
Article
Materials Science, Multidisciplinary
Atul Thakre, Ajeet Kumar, Dae-Yong Jeong, Geon-Tae Hwang, Woon-Ha Yoon, Ho-Yong Lee, Jungho Ryu
ELECTRONIC MATERIALS LETTERS
(2020)
Article
Materials Science, Ceramics
Han-Bo Jung, Ji-Ho Lim, M. Peddigari, Jungho Ryu, Doo Hyun Choi, Dae-Yong Jeong
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Ceramics
Ji-Ho Lim, Seunggon Choi, Han-Bo Jung, Suengwoon Jung, Jangsik In, Baojin Chu, Seungkyun Hyun, Dae-Yong Jeong
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2020)
Article
Physics, Applied
Ki-Hyun Kim, Han-Bo Jung, Ji-Ho Lim, Sung-Yub Ji, Doo Hyun Choi, Dae-Yong Jeong
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Materials Science, Ceramics
Sunghwan Cho, Daeyong Jeong, Hyungsun Kim
CERAMICS INTERNATIONAL
(2020)
Review
Materials Science, Multidisciplinary
Kang-Hyung Kim, Chan-Hyun Jung, Dae-Yong Jeong, Soong-Keun Hyun
KOREAN JOURNAL OF METALS AND MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Sung-Yub Ji, Han-Bo Jung, Min-Kyu Kim, Ji-Ho Lim, Jin-Young Kim, Jungho Ryu, Dae-Yong Jeong
Summary: Polymer-based dielectrics have shown potential for high energy storage devices, but are limited by low thermal conductivity and leaky current. By introducing h-BN@PDA@Pd NPs into a P(VDF-HFP) copolymer matrix, improved compatibility and breakdown strength were achieved, leading to a significantly increased energy density and thermal conductivity in the nanocomposite film. This study suggests that surface-engineered ceramic h-BN fillers mediated by metal Pd NPs may be a promising strategy for high energy storage devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Seunggon Choi, Ji-Ho Lim, Eun-Young Kang, Hyungsun Kim, Young-Min Kong, Dae-Yong Jeong
Summary: The study found that the hardness of the substrate has a significant impact on the deposition behavior of thick glass films fabricated by aerosol deposition (AD). A higher hardness of the substrate results in a thinner initial coating thickness.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2021)
Article
Materials Science, Ceramics
Jangsik In, Byoungkyu Jin, Dae-Yong Jeong
Summary: This study aimed to prevent electrostatic damage to contact-type lithography photomasks by using a conducting ITO material as a bridge between chromium metal patterns, optimizing the deposition process with a method called UV-Assisted-Partial-Strip (UAPS). The conducting ITO film was successfully deposited without electrical disconnection, increasing the initiation voltage of electrostatic defects.
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Subin Lee, Jong Hwan Park, Chan Gyu Park, Dae-Yong Jeong, Nong Moon Hwang
Summary: The study investigated the role of charged secondary nanoparticles in the aerosol deposition process, revealing that the positive charge enhanced plastic deformation for the evolution of dense films. This was supported by capturing and observing the secondary nanoparticles with transmission electron microscopy, showing their influence on the film formation during aerosol deposition.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Materials Science, Ceramics
Min-Kyu Kim, Sung-Yub Ji, Ji-Ho Lim, Seung-Wook Kim, Dae-Yong Jeong
Summary: With the development of the electrical industry, there has been an increasing demand for ceramic-based capacitors with high energy storage density. This study successfully fabricated lead-free 6Bi(0.5)Na(0.5)TiO(3)(BNT)-4Sr(0.7)Bi(0.7)TiO(3)(SBT) nano-grain composites using the aerosol deposition method, improving energy storage properties and thermal stability.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Materials Science, Multidisciplinary
Tae-Kyung Lee, Seung-Wook Kim, Dae-Yong Jeong
Summary: Fe-based amorphous metal powders were prepared using different atomization methods, and their magnetic properties were characterized. The amorphous metal powder manufactured using the high-speed water screen atomization process had lower eddy current loss and higher initial permeability due to the formation of a thin and uniform oxide layer. The magnetic cores fabricated with the amorphous powders produced by the high-speed water screen atomization method exhibited smaller coercive field and lower core loss values.
ELECTRONIC MATERIALS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Eun-Young Kang, Ji-Ho Lim, Seunggon Choi, Jong Wook Mun, Yu Kyung Lee, Sun Kon Lee, Dae-Yong Jeong
KOREAN JOURNAL OF MATERIALS RESEARCH
(2020)
Review
Materials Science, Ceramics
Paulina Wiecinska, Agnieszka Zurawska, Pawel Falkowski, Dae-Yong Jeong, Mikolaj Szafran
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2020)