Article
Engineering, Environmental
Xiaoxiao Zhang, Zengshe Liu, Deyang Qu
Summary: In this study, the commercially mature ion-exchange (IX) method was explored for the first time to recover lithium from spent lithium iron phosphate (LFP) cathodes. The Li-K IX reaction using oxalic acid as the feeding solution delivered a potential product of multi-elemental fertilizer. This simple and economical technology provides a practical recycling strategy for spent LFP batteries.
Article
Engineering, Electrical & Electronic
S. Altin, M. Coban, S. Altundag, E. Altin
Summary: Eu-doped LiFePO4 samples were successfully fabricated using glass-ceramics technique, and their thermal properties and structure were analyzed. The results showed that the x=0.02 sample had the lowest impurity phases and the best capacity value, indicating its potential for battery applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Ji-Ming Peng, Zhi-Qiang Chen, Yu Li, Si-Jiang Hu, Qi-Chang Pan, Feng-Hua Zheng, Hong-Qiang Wang, Qing-Yu Li
Summary: By creating a cross-linked conducting carbon network in LiFePO4/C cathode material, the modulation of electrode/electrolyte interface can yield excellent rate performance, enhance electron transmission rate and efficiency for Li storage, while inhibiting agglomeration and growth of LiFePO4/C primary particles, leading to a shortened Li+ diffusion pathway.
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, Applied
Xu Su, Han Fang, Hao Yang, Fangfang Zou, Gang Li, Lian Wang, Hongxin Liao, Wei Guan, Xuebu Hu
Summary: Polysaccharides, such as cellulose sulfate lithium (CSL) with strong adhesion, are synthesized and used as binders for LiFePO4 (LFP) cathode. Compared to conventional polyvinylidene difluoride (PVDF) binder, LFP cathode using CSL (LFP-CSL) exhibits lower polarization and better rate performance due to higher lithium-ion conductivity. CSL binder also maintains the integrity of the LFP cathode structure during cycling, resulting in a discharge capacity of 133.4 mAh g(-1) and remarkable cycle stability after 300 cycles at 1C.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Physical
Liguo Zhang, Litao Yu, Oi Lun Li, Si-Young Choi, Minwoo Kim, Ghuzanfar Saeed, Shufeng Bo, Kwang Ho Kim
Summary: A FeF3.0.33H(2)O@carbon nanocomposite with a pomegranate-like structure has been successfully synthesized, which exhibits excellent performance as a cathode material in both lithium-ion and sodium-ion batteries. The unique hierarchical carbon-coated architecture of the nanocomposite effectively reduces electrode polarization and enables high reversibility and rate performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
X. Nie, J. Xiong
Summary: The LiMn0.1Fe0.9PO4/C composite with enhanced electrochemical performance through Mn doping exhibits improved initial discharge capacities, attributed to the columnar effect of the Mn-stabilized crystal structure and increased lithium-ion diffusion rate caused by Mn doping.
Article
Chemistry, Multidisciplinary
Wenxiu Hou, Chao Yan, Panrun Shao, Kun Dai, Jun Yang
Summary: This study investigates the application of Prussian blue analogues (PBAs) as electrode materials for aqueous ammonium ion batteries (AAIBs). A PANI/Na0.73Ni[Fe(CN)(6)](0.88) hybrid (PNFF) is synthesized using a covalent bond assisted engineering with in situ polyaniline (PANI) polymerization, combining the high conductivity of PANI and the stability of PBAs. It is found that the PANI content affects the electrochemical performance of PNFF, and an optimized PANI content results in enhanced reversible capacity and cycling stability. The ammonium storage mechanism of PNFF is investigated using in situ Raman and ex situ XPS/FTIR analysis, and a durable aqueous NH4+ full cell is assembled using a polyimide@MXene anode.
Article
Biochemistry & Molecular Biology
Yuan Chen, Yufei Zhao, Feihong Liu, Mengdie Ding, Juan Wang, Jiuxin Jiang, Pascal Boulet, Marie-Christine Record
Summary: In this study, glass materials with different compositions were prepared and characterized. It was found that increasing the content of Bi2O3 led to improved stability of the glass network. Heat treatment of the glass materials resulted in enhanced electrochemical properties. This study provides an approach for the development of new glass cathode materials for lithium-ion batteries.
Article
Nanoscience & Nanotechnology
Xuefeng Wei, Meng Zhang, Baoji Miao, Ruixin Liu
Summary: Hot isostatic pressing (HIP) treatment significantly enhances the volumetric capacity of LiFePO4 (LFP) cathodes, increasing electrode density and achieving double the capacity of conventional cathodes. LFP cathodes pre-infiltrated with electrolyte exhibit superior rate capability and cycle performance.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Ceramics
E. Altin, S. Altundag, E. Gultek, S. Altin
Summary: Li1+xFePO4 (x=0 - 0.5) samples were successfully fabricated using the glass-ceramics technique. The thermal properties and phase competition were analyzed. Glucose and ascorbic acid were found to increase the conductivity of the powders and improve battery performance.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Electrochemistry
Hsun-Sheng Liu, Kun-You Chen, Chan-En Fang, Chi-cheng Chiu
Summary: Functional polymers as electrode binders enhance lithium ion conductivity and battery performance. Molecular dynamics simulations reveal that improving Li+ affinity and local mobility at the interface are crucial for a good binder, with free energy variations playing a dominant role.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Ceramics
Xiangyu Li, Pengwei Li, Xin Liu, Shaohua Luo, Yacong Li, Xunbo Su, Yanfei Zhang, Yuanzheng Yue
Summary: In this study, it was found that grid-like Fe3O4 nanocrystals effectively enhance the electrochemical performances of iron borate glass ceramic anode in lithium-ion batteries. By controlling the Fe2O3 content, the electronic conductivity of Fe2O3-B2O3 glass-ceramics can be increased, resulting in higher reversible capacity and cycling stability.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
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
Chemistry, Physical
Jia-Jun Han, Ao-Ran Guo, Yan-Fang Wang
Summary: PANI/LFP composites were successfully prepared through synthesis and structural control, exhibiting excellent electrochemical performance and higher energy storage capacity compared to pure LFP materials. This is of great significance for the development of battery technology.