Review
Chemistry, Physical
Zhaojin Li, Jinxing Yang, Tianjia Guang, Bingbing Fan, Kongjun Zhu, Xiaohui Wang
Summary: This paper summarizes the recent progress in controlled hydrothermal/solvothermal synthesis of LiFePO4 and explores the relationship between the synthesis conditions and the nucleation-and-growth of LiFePO4. The review covers surface decoration, lattice substitution, and defect control, while also discussing new research directions and future trends in the field.
Article
Energy & Fuels
Nitheesha Shaji, Feng Jiang, Jae Yoon Sung, Murugan Nanthagopal, Taehyung Kim, Byeong Jin Jeong, Soon Phil Jung, Chang Woo Lee
Summary: This study focuses on surface modification of LiFePO4 (LFP) cathode material for lithium-ion batteries (LIBs) using heteroatoms-doped carbon. The results demonstrate that the nitrogen and sulfur dual-doped carbon coating layer enhances the electrochemical activity, cycling stability, and rate capability of the NSC@LFP cathode.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Li Bai, Yongqi Xu, Ao Liu, Lei Dong, Kai Zhang, Wei-Shi Li, Fu-Gang Zhao
Summary: By using a non-oxidation synthetic strategy, we have successfully prepared a new type of graphene oxide with lower structural defects and excellent electrical properties. This graphene oxide exhibits superior performance in supercapacitors and lithium-ion batteries. It also offers great reactivity for post-functionalization.
CHEMICAL ENGINEERING JOURNAL
(2022)
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
Chemistry, Multidisciplinary
Yuting Zhang, Xuelu Dong, Haibo Li, Chuansheng Cui, Chonggang Fu, Suyuan Zeng, Lei Wang
Summary: In this study, MnOOH nanohydrangeas and MnOOH nanorods were prepared by a hydrothermal reduction route and used as active anodes for Li-ion batteries. The comparison of their lithium ion energy storage performances showed that gamma-MnOOH nanorods exhibit enhanced cycle and rate capacity, making them a promising candidate for lithium ion battery applications.
Article
Chemistry, Physical
Zi-Liang Chen, Yi-Jing Gu, Gui-Yang Luo, Yong-Lin Huo, Fu-Zhong Wu
Summary: The study investigated the simultaneous synthesis of LiFePO4/C and sulfur-modified reduced graphene oxide (SG) through a one-step hydrothermal method. It was found that SG significantly improved the electrochemical performance of the samples, with sample S2 showing the best specific discharge capacity and stability. The results indicate that wrapping LiFePO4/C with SG contributes to enhancing its electrochemical performance.
Article
Chemistry, Physical
M. G. Moustafa, Moustafa M. S. Sanad
Summary: The ZnAl2O4-coated LiFePO4 electrode prepared via polypropylene glycol-assisted sol-gel method showed improved crystallinity, stability, and electrochemical performance, making it a promising cathode material for future development.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
F. A. Vasquez, N. C. Rosero-Navarro, R. Jalem, A. Miura, Y. Goto, Y. Tateyama, J. A. Calderon, K. Tadanaga
Summary: In this study, a simple and practical method to prepare LFP/C-coated LMNO using microwave irradiation was proposed. The coating significantly improved the crystallographic structure and chemical stability of LMNO, and showed better electrochemical performance in lithium-ion batteries.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
Baoquan Zhang, Shuzhong Wang, Lu Liu, Yanhui Li, Jianqiao Yang
Summary: LiFePO4/N-doped C composites with core-shell structures were synthesized using a solvothermal method, with CTAB and glucose as nitrogen and carbon sources. The presence of N atoms in pyridinic and graphitic forms in the carbon of LiFePO4/N-doped C enhanced the cathode's capacity performance. The electrochemical tests revealed a synergistic effect between N-doping and core-shell structure in improving the electrochemical performance of the cathode.
Article
Chemistry, Physical
Shaonan Liu, Song Lu, Yangyang Fu, Weitong Ma, Heping Zhang
Summary: In this study, the heat flow behavior of (Ni1/3Co1/3Mn1/3)O-2 (NCM) and LiFePO4 (LFP) batteries during discharge and charge cycles at different ambient temperatures and discharge rates was investigated using a high precision isothermal microcalorimeter (TAM IV) for the first time. The results showed that low temperatures had a greater effect on the heat flow of the batteries. Furthermore, NCM batteries exhibited higher thermal stability during heating and cooling, as well as with increasing discharge rates. The research provides practical insights for the application, monitoring, and optimization of lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Sourav Nag, Atin Pramanik, Shyamal Roy, Sourindra Mahanty
Summary: Boehmite nanofibers synthesized by low temperature hydrothermal method were coated onto surface modified polypropylene to form a ceramic coated composite separator (ALO-PP). The ALO-PP separator showed enhanced thermal and dimensional stability and improved cell kinetics and capacity compared to uncoated polypropylene (PP) separator.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Rachid Essehli, Anand Parejiya, Nitin Muralidharan, Charl J. Jafta, Ruhul Amin, Marm B. Dixit, Yaocai Bai, Jue Liu, Ilias Belharouak
Summary: The study presents a new hydrothermal synthesis route for producing a cobalt-free cathode material NMA9055 with high capacity and purity for next-generation Li-ion batteries. The synthesized NMA material demonstrates excellent cycling performance and capacity retention when cycled between 3.0 and 4.4 V, making it a promising candidate for sustainable cathode production.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Chaoqi Shen, Gaoran Li, Liu Liu, Pengfei Li, Hui Xu, Heshan Hu, Lianbang Wang
Summary: LiFePO4 is a competitive cathode material due to its good safety, durability and affordability. An optimized solid-state synthesis route using iron powder as raw material was developed to prepare a low-cost and high-performance LiFePO4/C composite. The optimized conditions achieved high volumetric capacity, good rate capability and improved energy affordability, showing great potential for practical applications.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yujue Wang, Yan Meng, Yong Guo, Dan Xiao
Summary: A composite of LiFePO4-covered silicon particles, C-LFP-Si, was prepared through a solvothermal process followed by calcination. The composite exhibited high reversible specific capacity, capacity retention rate, and specific energy, making it promising for future large-scale applications.
Article
Chemistry, Physical
Jianying Meng, Zhengguang Zou, Xin Liu, Shuchao Zhang, Zhiqin Wen, Shenglin Zhong, You Li, Fangan Liang
Summary: In this study, pre-lithiated VO2(B) nanobelts were synthesized by a two-step hydrothermal method, showing enhanced electrochemical performance in terms of cycling stability and high-rate capability. The pre-lithiated nanobelts have a larger specific surface area and improved lithium-ion diffusivity compared to pure VO2(B) nanobelts. The pre-lithiated VO2(B) nanobelt cathode exhibits excellent specific capacity and long-term cycling stability, indicating their great potential as advanced cathode materials for next-generation lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)