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
Engineering, Electrical & Electronic
Serdar Altin, Abdurrahman Yolun
Summary: Heteroatoms-substituted LiFePO4 samples showed improved battery performance compared to the undoped samples, indicating potential for commercial battery applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Analytical
Maral Ghahramani, Susan Hamidi, Mahsa Mohammad, Mehran Javanbakht, Pooya Gorji
Summary: In this study, sulfonated copolymer was used as an effective binder to improve the efficiency of lithium-ion batteries. The investigation showed that the use of sulfonated PVDF binder resulted in decreased concentration polarization and improved lithiation and delithiation kinetics for LiFePO4 electrodes. After 300 cycles, the discharge capacity remained 90 mAh g-1 with a capacity retention of 100% at 1C.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Yan Zhuang, Wei Zhang, Yingqing Bao, Mingyun Guan
Summary: LiFePO4/C (LFP/C)-coated LiNi0.8Co0.1Mn0.1(NCM811) was prepared by ball milling, and the effect of different coating amounts of LFP/C on the electrochemical performance of NCM811 was investigated. The results showed that a 1 wt% LFP/C coating resulted in good cycling stability and rate performance, as well as improved high temperature and high pressure cycling stability compared to uncoated materials. The coating layer effectively reduced resistance and suppressed side reactions, enhancing the electrochemical performance of Nickel-rich layered materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Peiyao Wang, Jin Bai, Kunzhen Li, Hongyang Ma, Wanyun Li, Xuebin Zhu, Yuping Sun, Bangchuan Zhao
Summary: In this study, a stable bimetal nitride NiCo2N hollow sphere material with interconnected nanosheets shell was successfully synthesized and showed excellent electrochemical performance as an anode for lithium-ion batteries. The unique structure effectively relieves the volume change of the electrode material and shortens the diffusion distance of lithium ions, leading to high discharge capacity and good cycling stability. The electrochemical reaction mechanism of the electrodes was revealed through ex situ XRD, ex situ EIS, and ex situ HRTEM characterization.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Qiulin Chen, Hailang Liu, Junxian Hu, Li Wang, Yin Li, Yaochun Yao
Summary: In recent years, LiFePO4 has gained attention as an excellent cathode material for lithium-ion batteries, but its low conductivity poses a major disadvantage. A nitrogen-doped carbon coating on LiFePO4 is found to be an effective solution to this drawback. This study presents a novel method for fabricating nitrogen-doped carbon-coated LiFePO4 using sucrose and tripolycyanamide as carbon and nitrogen sources, respectively. The nitrogen-doped carbon layer on LiFePO4 forms a core-shell conductive network, promoting electron migration and enhancing electrochemical performances. The LFP/C-N-1.25 with 1.25 wt% N modification exhibits high specific capacities, better rate performance, and favorable lithium ion diffusion coefficient, suggesting its potential as a cathode material for lithium-ion batteries.
Article
Chemistry, Inorganic & Nuclear
Meng-Yao Pan, Si-Tong Lu, Ming-Yu Zhang, Chao Li, Guo-Dong Zou, Kang-Zhe Cao, Yang Fan
Summary: The synthesis of metastable olivine phase NaMnPO4 presents a challenge, but in this study, single crystals of olivine NaMnPO4 were successfully synthesized through a simple hydrothermal reaction. X-ray diffraction analysis provided precise structure information, and the metastable nature of the olivine phase was confirmed through transformation to the maricite phase. Furthermore, the olivine NaMnPO4 showed promising electrochemical performance as an anode material for Li-ion batteries, delivering a high capacity and good cycling stability, while the maricite phase NaMnPO4 exhibited low lithium storage capacity.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
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
Materials Science, Ceramics
Lin-Hui Wang, Xiao-Ling Teng, Yu-Feng Qin, Qiang Li
Summary: The CoO nanosheets/CoO film designed in this study as self-supported anodes for lithium-ion batteries exhibited better electrochemical performance and structural stability compared to previous CoO-based electrode materials. The CoO film firmly fixed the nanosheets and prevented them from crushing and falling off, greatly improving the electrochemical performance of the material. This novel electrode material has great potential applications in lithium-ion batteries.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Multidisciplinary
Fei Yuan, Wenxin Zhang, Di Zhang, Qiujun Wang, Zhaojin Li, Wen Li, Huilan Sun, Yusheng Wu, Bo Wang
Summary: This review discusses the potential of potassium ion batteries (PIBs) as promising candidates for large-scale stationary energy storage, while facing challenges in practical applications, especially in electrode materials. The study analyzes in detail the electrochemical properties of different types of binder-free anode materials, including recent progress and challenges in binder-free electrodes for PIBs.
Article
Engineering, Electrical & Electronic
Fagang Yu, Yiying Huang, Zhengguang Zou, Shuchao Zhang, Jing Geng, Fangan Liang, Min Feng, Jinxia Nong
Summary: The electrochemical performance of LFP is significantly improved by introducing MXene materials, which enhance the electrical conductivity and ion diffusion coefficient of LFP.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Yiqiong Peng, Lingzhi Zeng, Shuai Dai, Feng Liu, Xi Rao, Yongping Zhang
Summary: Self-assembled LiFePO4/C twin microspheres are synthesized by a hydrothermal method using a mixed solution of phosphoric acid and phytic acid. The twin microspheres have a hierarchical structure composed of primary nano-sized capsule-like particles. The presence of a uniform thin carbon layer on the particle surface improves charge transport capacity and the channel between the particles facilitates electrolyte infiltration.
Article
Materials Science, Multidisciplinary
Biaobing Chen, Min Liu, Shuang Cao, Gairong Chen, Xiaowei Guo, Xianyou Wang
Summary: This paper presents a new method for recovering FePO4 and Li2CO3 from spent LiFePO4 cathode materials to address the shortage of lithium resources. It was found that a sample with 12% carbon content in the LiFePO4 composite demonstrated better electrochemical performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Electrochemistry
Haitao Yang, Ziwei Pan, Liang Wang, Chao Liu, Zhichun Wang, Chuanxu Zhang, Wenqiang Lu
Summary: The Mn-doped LiFePO4/C cathode materials were prepared by high-temperature solid-phase process and showed ball-like morphologies with uniform carbon coating. The resulting LiMn0.02Fe0.98PO4/C composite exhibited excellent electrochemical properties, delivering a discharge capacity of 154.7 mAh/g at 0.1 C. Notably, the LiMn0.02Fe0.98PO4/C cell achieved a capacity of 100.4 mAh/g at 0 oC, higher than the LiFePO4/C cell (78.7 mAh/g) under the same testing condition. The study suggests that the improved performance is attributed to the enhanced embedding and stripping ability of Li+ in the LiFePO4 lattice.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Zonghui Yi, Jingxin Fu, Zhijiao Mu, Jieting Zhang, Sicong Shen, Jiangping Cao
Summary: LiFePO4@C/G composite was successfully prepared by spray drying and high temperature calcination, with two different ferric sources used to adjust the pH of the spray solution and carbon content of the product. The composite showed high reversible capacity, excellent cycling stability and rate capability. In addition, NaFePO4@C/G was obtained by in situ electrochemical delithiation and sodiation, and demonstrated high reversible capacity and good cycling stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)