Article
Chemistry, Physical
Yu-hong Luo, Han-xin Wei, Lin-bo Tang, Ying-de Huang, Zhen-yu Wang, Zhen-jiang He, Cheng Yan, Jing Mao, Kehua Dai, Jun-chao Zheng
Summary: This review comprehensively summarizes the development of nickel-rich and cobalt-free cathode materials, highlighting their competitive advantages in reducing costs and increasing energy density. It emphasizes the importance of developing new materials and provides solutions and future research directions to address current deficiencies in this field.
ENERGY STORAGE MATERIALS
(2022)
Article
Engineering, Chemical
Jiaxi Ni, Yingying Tan, Kang Xu, Yujie Jiang, Wanying Chang, Chunyan Lai, Hui Liu
Summary: A stable and high-performing cobalt-free cathode material LiNi0.9Al0.08Zr0.02O2 (NAZ-2) is successfully designed and synthesized by incorporating Zr4+ ions. It exhibits a high specific capacity and low polarization.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Multidisciplinary
Xiaotu Ma, Jiahui Hou, Panawan Vanaphuti, Zeyi Yao, Jinzhao Fu, Luqman Azhari, Yangtao Liu, Yan Wang
Summary: A new direct upcycling process is proposed, which converts spent polycrystalline Ni-lean cathodes into single-crystal Ni-rich cathodes using a one-step molten salt method. This method can be applied to mixed cathode streams without additional sorting and separating steps. The obtained upcycled cathode materials exhibit improved capacity and stability, demonstrating a pathway towards the sustainable development of LIBs.
Article
Electrochemistry
Lukman Noerochim, Suwarno Suwarno, Nurul Hayati Idris, Hermawan K. Dipojono
Summary: The exponential growth in production of electric vehicles has led to an increased demand for low-cost, high-performance lithium-ion batteries. However, concerns over the availability of cobalt, a high-cost and rare material used in high-nickel cathodes, may impact the price due to supply constraints. Developing cobalt-free high-nickel cathode materials, such as LiNi1-x-yMnxAlyO2, is necessary to address the reliance on cobalt and its high cost.
Article
Electrochemistry
Yasong Wang, Yongming Zhu, Peng Gao
Summary: LiNi0.95Mn0.05O2 binary material with a better layered structure and lower Li-Ni mixing ratio demonstrates excellent electrochemical performance compared to LiNiO2. The stability of Mn4+ and the presence of stable layered structure and lithium-ion diffusion channel contribute to its superior lithium-ion conductivity and structural integrity.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Environmental
Tuo Wang, Yanyan An, Junxia Sun, Hongxia Yang, Yaoyao Huang, Huaili Zheng
Summary: The effectiveness of lithium recovery is crucial for the future use of devices powered by lithium-ion batteries (LIBs) due to lithium resource shortages. This study presents a new strategy for selectively capturing Co2+/Ni2+ from the cathode leachate of LIBs by using a hollow structured self-floating adsorbent. The adsorbent showed high adsorption capacity for Co2+ and Ni2+ ions with minimal lithium loss in the recovery process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Sungmin Na, Kwangjin Park
Summary: In this study, a surface modification method was proposed to enhance the conductivity of the cathode materials in lithium-ion batteries. High ionic conductor and high electronic conductor materials were used for the modification. The modified cathode materials showed improved diffusion level, adequate rate capability, and stable cycling performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Sunwook Kim, Sungmin Na, Joonchul Kim, Tae Hwan Jun, Myoung Hwan Oh, Kyoungmin Min, Kwangjin Park
Summary: This study focuses on finding a coating material to replace cobalt in order to address the issues of Ni-rich cathode materials. The Ni/Hf coated sample shows higher initial capacity, improved rate capability, higher Li-ion diffusion coefficient, reduced charge-transfer resistance, enhanced cycle retention, and the ability to suppress side reactions and large volume change compared to other coatings and the pristine sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yoon-Sok Kang, Seong Yong Park, Kimihiko Ito, Yoshimi Kubo, Yongwoo Shin, Dong Young Kim, Dong-Hwa Seo, Soojin Kim, Jin-Hwan Park, Seok-Gwang Doo, Meiten Koh, Jin Ah Seo, Kwangjin Park
Summary: The thickness of the phase-change region at the surface of Ni-rich NCM/graphite cylindrical cells significantly affects battery performance, leading to a sudden degradation. The deterioration in cell performance is mainly attributed to increasing diffusion resistance in the positive electrode.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Gyeongbin Ko, Seongdeock Jeong, Sanghyuk Park, Jimin Lee, Seoa Kim, Youngjun Shin, Wooseok Kim, Kyungjung Kwon
Summary: Lithium-ion batteries (LIBs) are crucial for the electric vehicle (EV) industry, and LiNi1-x-yCoxMnyO2 (NCM) is the dominant cathode material used in EV LIBs. Due to the need for increased driving range, Ni content in NCM is maximized, but the resulting Ni-rich NCM is unstable. Doping with foreign elements has been explored as a strategy to overcome this instability, with over 46 elements considered and their effects on LIB performance investigated in numerous research articles. This comprehensive analysis of various doping elements and their impact on LIB performance provides valuable insights for the LIB industry and academia.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Aurora Gomez-Martin, Friederike Reissig, Lars Frankenstein, Marcel Heidbuchel, Martin Winter, Tobias Placke, Richard Schmuch
Summary: This study investigates the Mg substitution of Ni-rich LiNi1-x-yMnxCoyO2 (NMC) layered oxides and demonstrates a linear correlation between cycle life and attainable gravimetric capacities, which are influenced by the degree of Mg substitution and the amount of cycled Li+ ions. To achieve a higher energy density, a lower Mg content and higher Ni content should be considered.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xinxin Tan, Wenjie Peng, Gui Luo, Zhengwei Xu, Bianzheng You, Xibin Lu, Ning Chen, Jiexi Wang
Summary: This study systematically investigates the chemical and structural changes in the solid-state synthesis of cobalt-free nickel-rich layered transition metal oxide cathodes. It reveals three stages in the synthetic process and provides important insights into the solid-state synthesis of these cathodes.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yu-Jie Guo, Chao-Hui Zhang, Sen Xin, Ji-Lei Shi, Wen-Peng Wang, Min Fan, Yu-Xin Chang, Wei-Huan He, Enhui Wang, Yu-Gang Zou, Xin'an Yang, Fanqi Meng, Yu-Ying Zhang, Zhou-Quan Lei, Ya-Xia Yin, Yu-Guo Guo
Summary: Chemical modification of electrode materials by heteroatom dopants is crucial for improving storage performance in rechargeable batteries. This study investigates the competitive doping chemistry of boron and aluminum in nickel-rich cathode materials. The atomic radii difference between B and Al leads to different spatial configurations of bonding with lattice oxygen. The findings provide insights into stabilizing the structural evolution and surface chemistry of the cathode.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Rui Wang, Lifan Wang, Yujie Fan, Woochul Yang, Chun Zhan, Guicheng Liu
Summary: This article discusses the possibility of using cobalt-free cathode materials in commercial lithium-ion batteries. Cobalt plays a double-edged role in the cathode, facing challenges of structural degradation, capacity degradation, and thermal instability. Additionally, the high cost and unstable supply of cobalt are limiting factors. Research on cobalt-free cathode materials is important for reducing costs and improving battery performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Jing Liu, Shan Gao, Zheng Si, Baozhao Shi, Huimin Li, Jinli Zhang, Wei Li
Summary: The addition of a lanthanum oxyfluoride (LaOF) coating layer on the cathode material improves the electrochemical performance and cycling stability of lithium-ion batteries.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.