Article
Chemistry, Multidisciplinary
Aditya Narayan Singh, Min-Ho Kim, Abhishek Meena, Tae-Ung Wi, Hyun-Wook Lee, Kwang S. Kim
Summary: The study demonstrates that Na/Al codoped Li-Ru-Ni-O layered electrodes can serve as an efficient bifunctional electrocatalyst for both lithium-ion battery and oxygen evolution reaction. The doping process improves Li diffusion, stabilizes the layered structure, and provides abundant active sites for accelerating OER reactions.
Article
Chemistry, Physical
Qihan Meng, Fei Chen, Qingfei Hao, Na Li, Xudong Sun
Summary: The Nb-doped Li4Ti5O12-TiO2 (Nb-LTO-TO) hierarchical microspheres exhibited improved capacity and stability at low temperatures, providing a new approach for designing advanced anodes for high-performance Li-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Kavish Kaup, Abdeljalil Assoud, Jue Liu, Linda F. Nazar
Summary: Lithium thioborate halides are a new class of fast lithium-ion conducting materials with a superadamantanoid structure, exhibiting high ionic conductivities up to 1.4 mS cm(-1) that can be effectively tuned by the polarizability of the halide anion within the channels.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
O. V. Sreejith, M. S. Indu, George V. Alexander, Ramaswamy Murugan
Summary: The presence of germanium in lithium titanate (LTO) was found to effectively reduce cell impedance, improve Li+ ion diffusion, and enhance capacity. The optimal doped composition (Li4Ge0.1Ti4.9O12) demonstrated good cycling stability and high capacity at different rates.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Eun Cheol Lee, Junghwan Park
Summary: This study traces the change of crystal structure of Li(Ni0.80Co0.15Al0.05)O-2 as a cathode material in a Li-ion battery, and confirms the effect of temperature on crystal structure and the presence of defects generated during battery operation.
Article
Green & Sustainable Science & Technology
Fathima Ali Kayakool, Binitha Gangaja, Shantikumar Nair, Dhamodaran Santhanagopalan
Summary: The recycling and regeneration of graphite from spent Li-ion batteries can be utilized for the fabrication of Li-ion based all-carbon dual-ion batteries, achieving promising electrochemical performance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Junbin Li, Xiaoqing Chang, Tingyi Huang, Binhao Wang, Hongfei Zheng, Qing Luo, Dong-Liang Peng, Qiulong Wei
Summary: The electrochemical properties and size-effect of Li4Ti5O12 (LTO) anode for Li+ and Na+ storage were investigated. Li+ storage in LTO is diffusion-controlled in bulk and shows increased surface-controlled contributions when the size is reduced to 18 nm. In comparison, for Na+ storage, the domination step is surface-controlled in all sizes of LTO, with over 55% contribution even at low sweep rate of 0.1 mV s(-1).
ENERGY STORAGE MATERIALS
(2023)
Article
Energy & Fuels
Muhammad Waqas Nazar, Naseem Iqbal, Majid Ali, Hassan Nazir, M. Zain Bin Amjad
Summary: To improve the safety of Li-ion batteries, understanding their behavior under high temperature is crucial. In this study, charge and discharge experiments were conducted on battery packs to evaluate the impact of thermal management on battery performance. By analyzing the temperature distribution among the cells under different conditions and using phase change material, it was found that thermal management significantly affects the battery pack's performance and safety. Active cooling (air cooling) and passive cooling (using PCM) were both effective methods to reduce the temperature difference compared to ambient temperature, with passive cooling showing the most promising results.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Lori A. Kaufman, Tzu-Yang Huang, Donghun Lee, Bryan D. McCloskey
Summary: High-Ni layered oxide cathode materials have attracted great interest due to their increased capacity, but they suffer from capacity fading under high voltage conditions. This study used mass spectrometry to investigate gas evolution and surface species changes, revealing correlations between particle cracking, electrolyte reactivity, and carbonate oxidation and deposition during the first charge of high-Ni cathode materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Lori A. Kaufman, Tzu-Yang Huang, Donghun Lee, Bryan D. McCloskey
Summary: Studies have shown that capacity fading in high-Ni layered oxide cathode materials is not solely attributed to the H2 -> H3 transition, but also related to electrolyte reactivity and carbonate oxidation and deposition on the cathode surface.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Meisam Kahrizi, Ali Ghaffarinejad, Reza Daneshtalab
Summary: In this study, F-doped Li4Ti5O12 was successfully synthesized and used as an anode material for lithium-ion batteries. Various characterization techniques showed that Li4Ti5O11.7F0.3 exhibited the highest capacity and cycling stability among the modified samples.
Review
Chemistry, Inorganic & Nuclear
Yuxi Luo, Xiaoyu Gao, Mingjie Dong, Tao Zeng, Ziwei Chen, Maolin Yang, Zhongyuan Huang, Rui Wang, Feng Pan, Yinguo Xiao
Summary: Neutron diffraction techniques are indispensable in exploring the structural properties of electrode materials in lithium-ion batteries. They provide in-depth understanding of fundamental mechanisms and are crucial for the development of high-performance electrode materials. However, the application of this technique seems to be less widespread compared to X-ray diffraction, and more attention should be paid.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Akimitsu Kirikoshi, Satoru Hayami
Summary: We investigate the intrinsic nonlinear anomalous Hall effect (INAHE) in space-time (PT) symmetric antiferromagnetic metals. The INAHE is characterized by an asymmetric and nondissipative part of the second-order electric conductivity tensor in the clean limit. The emergence of the INAHE is due to active odd-parity magnetic quadrupoles or magnetic toroidal dipoles under magnetic orderings.
Review
Electrochemistry
Yao Liu, Wei Li, Yongyao Xia
Summary: While carbon, oxide, and silicon-based materials have limitations in current LIB applications, polyanionic compounds have gained attention for their ability to stabilize structures, adjust redox couples, and provide migration channels for guest ions, leading to electrode materials with long-term cycling, high energy density, and outstanding rate capability.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Jiayu Zhang, Siwei Wang, Guobao Xu
Summary: A 0D/2D heterostructure with excellent electrochemical performance was successfully synthesized to significantly improve the drawbacks of Spinel Li4Ti5O12 and demonstrate promising application prospects in high-power energy storage fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Jia-Yang Li, Hai-Yan Hu, Li-Feng Zhou, Hong-Wei Li, Yao-Jie Lei, Wei-Hong Lai, Ya-Meng Fan, Yan-Fang Zhu, Germanas Peleckis, Shuang-Qiang Chen, Wei-Kong Pang, Jian Peng, Jia-Zhao Wang, Shi-Xue Dou, Shu-Lei Chou, Yao Xiao
Summary: By using the concept of surface lattice-matched engineering, a spinel coating P2/P3 heterostructure cathode material is designed with enhanced air stability, rate, and cycle performance. The surface spinel phase plays a vital role in preventing the ingress of water molecules, improving transport kinetics, and enhancing structural integrity for NaxTMO2 cathodes. The concept of surface lattice-matched engineering based on in situ spinel interfacial reconstruction will be helpful for designing new ultra-stable cathode materials for high-performance sodium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shiyong Chu, Duho Kim, Gwanghyeon Choi, Chunchen Zhang, Haoyu Li, Wei Kong Pang, Yameng Fan, Anita M. M. D'Angelo, Shaohua Guo, Haoshen Zhou
Summary: Cation migration, especially of transition metals (TMs), in layered cathodes of sodium-ion batteries (SIBs) has been a significant issue, resulting in electrochemical degradation. By investigating the migration mechanism in a typical layered cathode material NaCrO2, it is found that the migration originates from random desodiation and subsequent Na-free layer formation at high charge potential. To address this issue, a Ru/Ti co-doping strategy is developed, where active Ru is selectively desodiated to suppress Na-free layer formation, while inactive Ti serves as a pillar to avoid complete desodiation in Ru-contained TM layers, leading to enhanced electrochemical performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yameng Fan, Emilia Olsson, Gemeng Liang, Zhijie Wang, Anita M. D'Angelo, Bernt Johannessen, Lars Thomsen, Bruce Cowie, Jingxi Li, Fangli Zhang, Yunlong Zhao, Wei Kong Pang, Qiong Cai, Zaiping Guo
Summary: This study investigates the mechanical behavior of cobalt-free Li1.2Ni0.2Mn0.6O2 and demonstrates the positive impact of two-phase Ru doping. The Ru doping improves structural reversibility and restrains structural degradation during cycling, resulting in high structural stability and a high capacity-retention rate during long-term cycling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Electrochemistry
Lisa Djuandhi, Uttam Mittal, Neeraj Sharma, Henrik L. L. Andersen
Summary: Carbon-based cathode materials are essential for the development of alternative battery technologies, especially lithium-sulfur batteries. Various characterization techniques at different length scales have been used to study the composition, structure, and properties of these materials, enabling rational design and improvement. This review provides a comprehensive overview of how researchers have used conventional and emerging analytical techniques to investigate carbon-based cathode materials for Li-S batteries.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Itsuki Konuma, Damian Goonetilleke, Neeraj Sharma, Takuhiro Miyuki, Satoshi Hiroi, Koji Ohara, Yukio Yamakawa, Yusuke Morino, Hongahally Basappa Rajendra, Toru Ishigaki, Naoaki Yabuuchi
Summary: A high-capacity and long-life solid-state lithium-ion battery is developed by using a lithium-excess vanadium oxide as the positive electrode material, which shows excellent reversibility and stability during electrochemical cycles.
Article
Chemistry, Multidisciplinary
Jinjin Ban, Hongjie Xu, Guoqin Cao, Yameng Fan, Wei Kong Pang, Guosheng Shao, Junhua Hu
Summary: Novel iron-rich nitride nanoparticles with tunable electronic and bonding characteristics were designed and anchored on N-doped porous carbon for potential use in energy storage and conversion. The synergistic effects of phase transition and electron-spin regulation on oxygen electrocatalysis were demonstrated. The (CoxFe1-x)(3)N@NPC core-shell structure with high dispersibility was induced by an intermediate phase transition process, which effectively prevented the coarsening of metallic nitrides. The incorporation of cobalt regulated the spin polarization of d-band electrons, and the optimal cobalt content (Co0.17Fe0.83)(3)N@NPC showed improved bifunctional catalytic performances in balancing the adsorption of *O-2 and the hydrogenation of *OH.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qining Fan, Shilin Zhang, Jicheng Jiang, Wilford Lie, Wei Kong Pang, Qinfen Gu, Weishen Yang, Huakun Liu, Jiazhao Wang, Zaiping Guo
Summary: The search for viable carbon-neutral and renewable sources of energy is a crucial challenge in science today. The chemical community is dedicated to finding efficient, inexpensive, and sustainable electrocatalysts that can utilize energy from sustainable resources. This study identifies a green and cheap ethanol organocatalyst that efficiently catalyzes the oxidation of Li2S in electrochemical reactions of Li2S cathodes. The concept of utilizing small molecular organocatalysts as tools to enhance electrochemical reactions has broad implications for green and sustainable chemistry cycles.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hang Zhang, Yun Gao, Jian Peng, Yameng Fan, Lingfei Zhao, Li Li, Yao Xiao, Wei Kong Pang, Jiazhao Wang, Shu-Lei Chou
Summary: Prussian blue analogues (PBAs) have high theoretical energy density and low cost, but their high water and vacancy content lower the energy density and pose safety issues. A potassium-ions assisted strategy is proposed to synthesize highly crystallized PBAs, which exhibit increased redox potential and high energy density of approximately 450 Wh kg(-1). In addition, unconventional highly-reversible phase evolution and redox-active pairs were identified for the first time, and the preferred guest-ion storage sites and migration mechanism were systematically analyzed through theoretical calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jian Peng, Eleanor Parker, Helen E. A. Brand, Neeraj Sharma
Summary: The structural and thermal evolution of alkali-ion inserted ReO3 electrodes were studied using in situ and ex situ synchrotron X-ray diffraction. Sodium and potassium insertion involved intercalation into ReO3 and a two-phase reaction. Lithium insertion showed a more complex evolution with a conversion reaction at deep discharge. The thermal properties of A(x)ReO(3) phases (where A = Li, Na, or K) were significantly modified, indicating the impact of alkali-ion insertion on the thermal properties of ReO3.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Energy & Fuels
Uttam Mittal, Matthew Teusner, Helen E. A. Brand, Jitendra Mata, Dipan Kundu, Neeraj Sharma
Summary: Lithium-ion batteries are crucial for electric vehicles and renewable energy storage. The development of new electrode materials is vital to meet various considerations. In this study, Y2W3O12 was demonstrated as a high-rate anode material in lithium-ion batteries, with post-synthetic milling and carbon coating significantly enhancing its performance. The carbon-coated electrodes showed remarkable rate performance and long-term cycling stability, indicating the potential for fast-charge and high-power applications. This post-synthesis process can also be applied to improve the electrochemical performance of other electrode materials.
Article
Multidisciplinary Sciences
Wenchao Zhang, Fangli Zhang, Sailin Liu, Wei Kong Pang, Zhang Lin, Zaiping Guo, Liyuan Chai
Summary: The trend of converting CO2 into valuable chemicals is discussed in this article, highlighting the efficient approach of fixing CO2 as carbon or carbonates through Li-CO2 chemistry. The importance of anions/solvents in forming a robust solid electrolyte interphase (SEI) layer and the solvation structure is emphasized, with findings showing that selecting the appropriate solvent and ion pair ratio is crucial for improving electrolyte efficiency.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Yanyan Wang, Zhijie Wang, Wei Kong Pang, Wilford Lie, Jodie A. Yuwono, Gemeng Liang, Sailin Liu, Anita M. D' Angelo, Jiaojiao Deng, Yameng Fan, Kenneth Davey, Baohua Li, Zaiping Guo
Summary: The authors propose a hybrid electrolyte that incorporates strongly polar molecules to strengthen the water O-H bonds, thus reducing water activity and improving the electrochemical performance of aqueous zinc-ion batteries.
NATURE COMMUNICATIONS
(2023)
Article
Energy & Fuels
Tahereh Jalalabadi, Jimmy Wu, Behdad Moghtaderi, Neeraj Sharma, Jessica Allen
Summary: Carbonate gasification causes exfoliation of graphite to form turbostratic carbon at 800°C. Treatment with molten ternary eutectic carbonate leads to significant changes in the lattice distance of graphene sheets in graphite above 750°C. Approximately 50% of graphite experiences interlayer expansion, modifying the conventional d spacing of 0.34 nm to intervals between 0.41 nm and 1.22 nm.
Article
Multidisciplinary Sciences
Yuguang Pu, Duncan Moseley, Zhen He, Krishna Chaitanya Pitike, Michael E. Manley, Jiaqiang Yan, Valentino R. Cooper, Valerie Mitchell, Vanessa K. Peterson, Bernt Johannessen, Raphael P. Hermann, Peng Cao
Summary: Researchers have developed a bottom-up method for synthesizing rocksalt high-entropy oxides (HEOs) containing Mn and Fe. They investigated the crystal structure and random cation-site occupancy of FeO-HEO, showing improved structural robustness and the viability of an oxygen sublattice as a buffer layer. Compositional analysis revealed the valence and spin state of the iron species, and the antiferromagnetic order of FeO-HEO below a transition temperature around 218 K was reported, along with predictions for the phase stability conditions of Mn and Fe-containing HEOs.
Article
Chemistry, Physical
Matthew Teusner, Uttam Mittal, Martina Lessio, Bernt Johannessen, Jitendra Mata, Neeraj Sharma
Summary: We report the use of copper tartrate, an inexpensive and off-the-shelf metal-carboxylate, as a high-capacity anode material for lithium-ion batteries, achieving a specific capacity of 744 mA h g(-1) when cycled at 50 mA g(-1). Advanced techniques, including XAS, XRD, SANS, and USANS, were used to investigate the structure-performance relationship of the electrode and uncover an unusual capacity gain with cycling.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
