Article
Materials Science, Ceramics
Qinyan Yang, Xiang Yao, Hualing Tian, Yanjun Cai, Zhi Su
Summary: The introduction of fast ion conductor LVP into LVOP enhances electronic conductivity and first discharge specific capacity of the composite material, leading to improved cycle performance. The presence of both LVOP and LVP phases with carbon coating in the synthesized material contributes to the increase in Li+ pervasion channels and acceleration of Li+ transmission speed, further boosting electrochemical performance.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Zan Huang, Peifang Luo, Honghong Zheng
Summary: In this work, a facile method was proposed to fabricate Ti4+-doped Li3V2(PO4)3/C nanofibers, and the Ti4+ doping contributed to the improved electrical conductivity and Li+ diffusion coefficient, resulting in good battery characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Xiaopeng Li, Xingyu Du, Yulin Xu, Jianming Li, Yujue Wang, Yan Meng, Dan Xiao
Summary: A three-dimensional holey graphene enwrapped Li3V2(PO4)(3)/N-doped carbon nanocomposite was successfully synthesized, which exhibited excellent electrochemical performance and showed potential for application in Li-ion batteries.
Article
Chemistry, Physical
Xiaohan Li, Ning Wang, Tong Su, Yujun Chai
Summary: Three-dimensional carbon network supported LVP and NVP composites were successfully prepared. These composites exhibit good lithium and sodium storage performance. A noticeable solid electrolyte interphase film was detected in the LVP/C electrode during cycling.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jinshu Tong, Anyu Su, Teng Ma, Junjie Ba, Luyao Wang, Zeyu Zhang, Jingyi Qiu, Xibang Chen, Yizhan Wang, Yingjin Wei
Summary: Severe capacity degradation at low temperatures hampers the wide application of lithium-ion batteries in consumer electronics and electric vehicles. This study proposes a binary coating layer for the cathode material, which significantly improves the high-rate capability and low-temperature performance of batteries without changing the electrolyte formulation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lulu Mo, Limin Zhu, Lingling Xie, Xiaoyu Cao
Summary: This study reports the preparation of Cu-coated Li3V2(PO4)3/C composites via a chemical precipitation and self-reduction method. The optimized Cu coating content significantly enhances the electrochemical properties, leading to higher initial discharge capacity and improved cycling stability. Enhanced performance is attributed to the uniform coating of Cu on the surface of LVPC, promoting electron transfer and Li+ ion extraction/insertion.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
Mengyao Xu, Lin Liang, Jing Qi, Tianli Wu, Dan Zhou, Zhubing Xiao
Summary: The synthesis of Ti3C2Tx-CNTs hybrids without the addition of catalyst precursors allows for the uniform precipitation of catalysts and the formation of CNTs with high integrity on the surface of Ti3C2Tx, making them ideal 3D scaffolds for accommodating sulfur and regulating the polysulfides conversion in lithium-sulfur batteries.
Article
Materials Science, Ceramics
Hsing- Hsiang, Bi -Ru Cai, Sheng-Heng Chung, Li-Wen Chu, Jing -Ru Tseng, Yue-Ming Shen
Summary: The monoclinic lithium vanadium phosphate (LVP) is a promising cathode material for lithium-ion batteries due to its high theoretical specific capacitance, high operating voltage, good ionic conductivity, and thermal stability. Synthesizing the pure LVP phase requires complicated procedures, but can be achieved through heat treatment of glass powder produced using the double crucible method. Carbon coating can improve the electrical conductivity and electrochemical properties of LVP.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Duyoung Choi, Ji-Yeon Shim, Sungwoong Choi, Sangmin Park, Harok Jeong, Min -Su Kim, Jungpil Kim, Junghoon Yang
Summary: Alkali vanadium phosphates are promising electrode materials for next-generation ion batteries, but suffer from low electronic conductivity due to phosphate group. In this study, a method of building an effective carbon backbone in alkali vanadium phosphate and carbon composite is proposed to overcome this issue. The carbon backbone not only provides electron pathways but also suppresses particle agglomeration, resulting in efficient ion diffusion and electron transfer. The importance of efficient carbon composite materials for phosphate-based electrode materials is demonstrated by investigating the rhombohedral Li3V2(PO4)3 material as a cathode and anode for lithium-ion batteries, which is a different phase from the well-known monoclinic Li3V2(PO4)3.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Manling Ding, Chen Cheng, Qiulong Wei, Yue Hu, Yingying Yan, Kehua Dai, Jing Mao, Jinghua Guo, Liang Zhang, Liqiang Mai
Summary: This study demonstrates the remarkable high-rate capability and long-term cycling performance of carbon decorated Li3V2(PO4)(3) cathode. Through spectroscopic analysis, the reversible evolution of V-O hybridization strength in LVP/C during the discharge-charge processes is identified as a key factor contributing to its outstanding electrochemical performance. This research not only provides an effective synthesis strategy but also deeper insights into the surface and bulk electrochemical reaction mechanism of LVP, which could benefit the further design of high-performance LVP electrode materials.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Qiang Fu, Bingrui Guo, Weibo Hua, Angelina Sarapulova, Lihua Zhu, Peter G. G. Weidler, Alexander Missyul, Michael Knapp, Helmut Ehrenberg, Sonia Dsoke
Summary: In this study, the electrochemical properties and reaction mechanism of Li3-2xCaxV2(PO4)(3)/C as negative electrode materials for sodium-ion/potassium-ion batteries were investigated. It was found that the Ca content influenced the diffusion-controlled and pseudocapacitive-type processes in the batteries. Li3V2(PO4)(3)/C showed the highest reversible capacity, while Ca1.5V2(PO4)(3)/C exhibited the best rate performance. It was also discovered that the specific capacity of the material did not increase with Ca-content, but the stability and performance at high C-rate improved by replacing Li+ with Ca2+.
Article
Electrochemistry
Hwang Sheng Lee, Vishwanathan Ramar, Saravanan Kuppan, Mangayarkarasi Nagarathinam, Markas Law, Chen Wang, Abhinav Tripathi, Palani Balaya
Summary: The one-pot soft template synthesis of alpha-Li3V2(PO4)(3)/C shows excellent storage and rate performances, with unique morphology and long cycle life. This cathode material demonstrates high discharge capacities and better rate performance compared to known cathode materials for lithium-ion batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Environmental
Siyuan Chen, Ni Wen, Chunmao Huang, Youzhong Dong, Quan Kuang, Qinghua Fan, Yanming Zhao
Summary: This study demonstrates for the first time a feasible rechargeable organic nickel ion battery using an ether-based electrolyte, Li3V2(PO4)(3) as cathode, and nickel foam as anode materials. The battery exhibits high reversible specific capacity and stable cycle performance, and the reversible insertion and extraction of Ni2+ ions into the cathode structure are confirmed by experimental methods. Additionally, the reaction mechanism and structural changes during the cycle process are analyzed in detail using in-situ X-ray diffraction technology and Rietveld refinement.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Debabrata Mohanty, Zhen-Lun Lu, I-Ming Hung
Summary: Lithium-ion batteries have become the main power source for hybrid electric vehicles and electric vehicles, and monoclinic-phase Li3V2(PO4)(3) (LVP) is a potential cathode material for the next generation of lithium-ion batteries due to its high operating voltage and low cost. In this study, carbon-coated LVP nano-crystallites were synthesized using the citric-acid gel process, and the effects of carbon coating amount on material characteristics and electrochemical performance were investigated. The results showed that the 11.9% carbon-coated LVP sample exhibited good electrochemical performance during charge-discharge process.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Chenwei Zhang, Amin Liu, Jie Lu, Yi Cheng, Haisong Wang
Summary: The successfully fabricated honeycomb-like LVP@C material with continuous carbon framework and hierarchical porous structure exhibits excellent performance, with an initial specific capacity of 180 mAh/g and an energy density of 666 Wh/kg. After 500 cycles, it retains almost 100% capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
