Article
Chemistry, Multidisciplinary
Hailong Xiong, Chunyu Qi, Shiquan Lv, Ling Zhang, Zhen-An Qiao
Summary: Na3V2(PO4)(3) (NVP) has shown potential as a cathode material for sodium-ion batteries (SIBs) due to its excellent structural stability and rapid Na+ conductivity. However, its electrochemical performances are limited by its large bulk structure and poor electronic conductivity. The construction of porous NVP materials has been identified as an effective method to improve the electrochemical properties.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Sidika Yildirim Gultekin, Aslihan Guler, Deniz Kuruahmet, Hatice Gungor, Mustafa Mahmut Singil, Esma Uzun, Hatem Akbulut, Mehmet Oguz Guler
Summary: Graphene aerogel was found to enhance the cycle stability and discharge capacity of the cathode in Na-ion batteries. The three-dimensional porous structure of the graphene aerogel contributed to the increased diffusion coefficient in the battery.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Xiao Liu, Juan Gong, Xijun Wei, Ling Ni, Houyang Chen, Qiaoji Zheng, Chenggang Xu, Dunmin Lin
Summary: The MoO42- doped sodium vanadium phosphate material showed high initial capacity, excellent capacity retention, and good rate capability. The doping significantly enhanced structural stability and electronic conductivity, promoting a highly reversible phase transition process during the electrochemical reaction of the material. This study provides new insights into the design of advanced cathodes for high-performance sodium-ion batteries through unique anion doping strategy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiao Liu, Ransha Deng, Xijun Wei, Zhuo Chen, Qiaoji Zheng, Chenggang Xu, Dunmin Lin
Summary: The bimetallic doped Na3V2-x(Mg0.5Mn0.5)(x)(PO4)(3) material showed high initial discharge capacity, rate capability, and cycling performance, indicating that the Me2+ and Mn2+ co-doped strategy effectively enhances the electrochemical properties of Na3V2(PO4)(3) for high performance sodium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jinqiang Gao, Ye Tian, Lianshan Ni, Baowei Wang, Kangyu Zou, Yingchang Yang, Ying Wang, Craig E. E. Banks, Dou Zhang, Kechao Zhou, Huan Liu, Wentao Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: Sodium-ion batteries (SIBs) are emerging as a promising alternative to Lithium-ion batteries (LIBs) for energy storage systems. This study presents a strategy to enhance SIBs performance by cross-linking NVPF with multi-dimensional nanocarbon frameworks composed of amorphous carbon and carbon nanotubes (NVPF@C@CNTs). The unique structure of NVPF@C@CNTs ensures shortened sodium ion transmission pathway and improved electronic transfer network, resulting in enhanced charge transfer kinetics and superior cycling stability. The obtained electrochemical properties, including high specific capacity and long-term cycling stability, demonstrate the potential of NVPF@C@CNTs for large-scale energy storage applications.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Jun Lee, Sohyun Park, Young Park, Jinju Song, Balaji Sambandam, Vinod Mathew, Jang-Yeon Hwang, Jaekook Kim
Summary: In this study, a Na3V1.6Cr0.4(PO4)(3)/C (NVCrP@C) cathode was designed for high power density sodium-ion batteries by implanting Cr into the crystal structure of NVP and coating it with carbon. The substitution of Cr in the structure significantly enhanced the electrode's structural stability, while the thin carbon layer improved electrical conductivity, leading to excellent cycling stability and power capability of the NVCrP@C cathode.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Nanoscience & Nanotechnology
Ze-Lin Hao, Miao Du, Jin-Zhi Guo, Zhen-Yi Gu, Xin-Xin Zhao, Xiao-Tong Wang, Hong-Yan Lu, Xing-Long Wu
Summary: With the rapid development of sodium-ion batteries (SIBs), the exploration of cathode materials with desirable rate capability, high energy density, and long cycle performance is urgent. Na3V2(PO4)(3) (NVP), a NASICON-type electrode material, shows great potential due to its good thermal stability and stability. However, NVP suffers from low electronic conductivity, and various strategies involving nanotechnology have been proposed to improve it. This review summarizes the research progress on NVP performance improvement strategies focused on nanostructures, including the construction of nanostructured active particles and nanocomposites with conductive carbon networks. The review also presents NVP nanocomposites, their preparation methods, promotion effects, and examples at different nano-dimensions.
Review
Chemistry, Physical
Qingke Huang, Zhihua Hu, Kai Chen, Zeng Zeng, Yan Sun, Qingquan Kong, Wei Feng, Ke Wang, Zhuangzhi Li, Zhenguo Wu, Ting Chen, Xiaodong Guo
Summary: Sodium-ion batteries (SIBs) are considered as a promising alternative to lithium-ion batteries (LIBs) due to their abundant resources. Na3V2(PO4)3 (NVP) is a promising cathode material for SIBs, thanks to its unique structure, good stability, and fast sodium diffusion kinetics. However, its weak intrinsic conductivity hinders its further market application. Various strategies, such as foreign ion doping and carbon coating, have been proposed to solve this issue.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Hongxia Chen, Yutian Yang, Rihuang Nie, Cheng Li, Shuangwu Xu, Mengcheng Zhou, Xinyu Zhang, Hongming Zhou
Summary: Hierarchical porous micro-nano NVP/C materials were successfully prepared using a metal-organic frameworks (MOFs) precursor, which exhibit a unique 3D highly conductive network and high specific surface area. The materials show excellent rate capability and cycle life, providing a promising pathway for the application of MOFs in battery materials and promoting the development of sodium ion batteries in large-scale energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Cheng Cheng, Xiaoxian Zang, Wenxiu Hou, Changcong Li, Qing Huang, Xiangang Hu, Chencheng Sun, Yu Zhang, Jun Yang, Fuyuan Ma
Summary: The study synthesized Na3V2(PO4)/C (NVP/C) composites with a 3D porous carbon skeleton structure via hydrothermal methods. The NVP/C exhibited advantages such as high voltage plateau, 3D ionic diffusion channel, thermal stability, and structural robustness, making it a promising candidate for energy storage applications. The NVP/C showed excellent performance and stability as a cathode material for sodium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Qingbo Zhou, Linlin Wang, Wenyao Li, Suyuan Zeng, Kangning Zhao, Yujie Yang, Qian Wu, Minmin Liu, Qiu-An Huang, Jiujun Zhang, Xueliang Sun
Summary: This work successfully fabricated carbon-decorated Na3V2(PO4)(3) materials, with NVP@C-800 showing excellent electrochemical performance such as ultralong cycle life at high rate and high energy density in a symmetric sodium-ion battery.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Liying Shen, Yong Li, Swagata Roy, Xiuping Yin, Wenbo Liu, Shanshan Shi, Xuan Wang, Xuemin Yin, Jiujun Zhang, Yufeng Zhao
Summary: Na3V2(PO4)(3) is a promising electrode material for sodium-ion batteries, but faces limitations due to poor electronic conductivity. A two-step method was used to prepare carbon-coated Na3V2(PO4)(3) materials with remarkable electrochemical performance, surpassing most advanced cathode materials reported in literature.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Ranjith Thangavel, Daseul Han, Brindha Moorthy, Bala Krishnan Ganesan, Megala Moorthy, Yongll Park, Kyung-Wan Nam, Yun-Sung Lee
Summary: This study reveals some key structural changes of symmetrical sodium-ion batteries during electrochemical reactions, and demonstrates through experiments that symmetrical NVP cells can stably provide high energy capacity.
Article
Polymer Science
Junghoon Yang, Duyoung Choi, Kwang-Seok Kim, Dae Up Kim, Jungpil Kim
Summary: This study successfully synthesized a porous carbon network-Na3V2(PO4)(3) composite using a poly(vinylalcohol) assisted sol-gel method, which overcame the undesirable electrochemical performance caused by the low conductivity of Na3V2(PO4)(3). The composite exhibited excellent kinetic properties and stable cyclic stability.
Article
Engineering, Electrical & Electronic
Wenhao Zhu, Qianlun Mao, Yuexin Jia, Jiangfeng Ni, Lijun Gao
Summary: In this study, a dual-carbon-decorated phosphate material, Na3V2(PO4)(3), is fabricated to improve the performance of sodium-ion batteries. With enhanced electron conduction, the material exhibits a high initial capacity of 109.7 mA h g(-1) and retains 73.2 mA h g(-1) after 1000 cycles under a high rate of 20 C.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Dian-hong Lu, Jing-jia Zhang, Zheng-baihe Wei, Zhen-bo Wang
Summary: Hybrid aqueous rechargeable lithium-ion batteries (HARLIBs) have lower cost and better safety performance. However, the challenge lies in the limited selection of anode and cathode materials, as well as capacity decay in aqueous electrolytes. This article proposes a method to improve the conductivity of NaTi2(PO4)(3)/C and studies its electrochemical performance.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Mi Guo, Liang Luo, Shulin Chen, Zhenzhen Wang, Pengjian Zuo, Zhenbo Wang
Summary: In this study, dual-modification of LiNi0.88Co0.09Al0.03O2 was achieved by LiBO2-coating and Mg-doping, aiming to stabilize its crystal structure and reduce its surface activity. The dual-modification effectively improved the discharge ability, rate capability, and cycling behavior of LiNi0.88Co0.09Al0.03O2. The co-modification cathode showed excellent prolonged cycling stability in cylindrical 18650 batteries at both room and high temperature.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Xin-Yu Li, Fu-Da Yu, Wang Ke, Yun-Shan Jiang, Lan-Fang Que, Lei Zhao, Su-E Hao, Zhen-Bo Wang
Summary: Li2MnO3 is the parent compound of Li-rich Mn-based cathode materials and has attracted considerable interest due to its high electrochemical activity caused by the existence of oxygen vacancies. The mechanism behind the oxygen vacancies in Li2MnO3 is still under debate. In this study, Li2MnO3 with different oxygen vacancy contents was synthesized using a mechanical thermal activation engineering strategy to investigate its electrochemical activity. It was found that the introduction of oxygen vacancies effectively modulates the electronic structure, inducing distortion of the interfacial structure and stimulating the electrochemical activity. The evolution of Mn and O in Li2MnO3 during cycling showed that the Mn-O hybridization is strongly correlated with the oxygen redox behaviors, and high electrochemical activity and cycling stability cannot coexist. This work provides valuable insights into the origin of electrochemical activity in Li2MnO3 for the design of high energy density cathode materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Physical
Long-Ji Yuan, Xu-Lei Sui, Chang Liu, Yu-Ling Zhuo, Qi Li, Hui Pan, Zhen-Bo Wang
Summary: This review provides a systematic introduction to the research methods of M-N-C catalysts, reveals their electrocatalytic mechanism and structure-activity relationship, and points out future research directions.
Article
Nanoscience & Nanotechnology
Xiongzhi Yang, Jinzhu Jia, Linghao Sun, Guangsheng Huang, Junli Zhou, Ruanming Liao, Zhonghui Wu, Lin Yu, Zhenbo Wang
Summary: The regeneration of harmful activated sludge into an energy source is a valuable strategy for municipal sludge treatment and recycling. In this study, SiO2-modified N,S auto-doped porous carbon (NSC@SiO2) was successfully obtained through a simple calcination method. The introduction of P-doped NSC@SiO2 (NSPC@SiO2) further enhanced its surface area, pore volume, and carbon defects, making it an excellent sulfur host for lithium-sulfur batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yun-shan Jiang, Fu-da Yu, Wang Ke, Liang Deng, Yang Xia, Xin-yu Li, Lan-fang Que, Nian Zhang, Lei Zhao, Zhen-bo Wang
Summary: Disordered rocksalt-like cathodes with initial Li-deficient nanostructures, cation vacancies, and partial spinel-type structures have been prepared, providing fast Li+ percolation channels under Li-deficient condition. The prepared sample exhibits high initial discharge capacity and energy density. Advanced spectroscopy and in situ measurements observe highly reversible charge compensation and assign coupled Mn- and O-related redox contribution. Theoretical calculations suggest a novel and chemical reversible trapped molecular O-2 model in the rocksalt structure with vacancies, demonstrating a dual role of Li-deficient structure in promoting cationic oxidation and extending reversible oxygen redox boundary. This work is expected to break through the existing ideas of oxygen oxidation and opens up a higher degree of freedom in the design of disordered rocksalt structures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunkun Dai, Bo Liu, Ziyu Zhang, Pan Guo, Chang Liu, Yunlong Zhang, Lei Zhao, Zhenbo Wang
Summary: A strategy of Fe d-orbital splitting modulation by constructing axial coordination on Fe-N-4 sites is presented to regulate the electronic states of single atomic sites around the Fermi level. The axial tractions induce the distortion of Fe-N-4 SP and up to the quasi-octahedral coordination (Fe-N4O1 OCquasi), leading to electron rearrangement and diluted spin polarization. This work provides a novel understanding for improving electrocatalytic performance through orbital-scale manipulation.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yaru Yang, Qingjun Zhu, Jiayi Yang, Han Liu, Yang Ren, Xulei Sui, Panpan Wang, Gang Sun, Zhenbo Wang
Summary: A dual gaseous surface treatment strategy with ammonium bicarbonate is designed to reconstruct the surface characteristics of Li-rich manganese base oxides, achieving an enriched oxygen vacancies mixed-phase surface layer. This modified cathode exhibits excellent high-temperature performance, including improved coulombic efficiency, cycling stability, and rate capability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jianxi Lu, Songbo Chen, Yuling Zhuo, Xinya Mao, Dong Liu, Zhenbo Wang
Summary: The study demonstrates the design of a novel electrocatalyst with high catalytic performance for hydrogen production through seawater electrolysis. Surface amorphization and morphology engineering are combined to improve catalytic performance. The synergistic effect between surface amorphization and unique microcolumn morphology contributes to the remarkable performance of the electrocatalyst.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Long-Ji Yuan, Bo Liu, Li-Xiao Shen, Yun-Kun Dai, Qi Li, Chang Liu, Wei Gong, Xu-Lei Sui, Zhen-Bo Wang
Summary: A Cyan-Fe-N-C catalyst was constructed with the help of axial Fe4C atomic clusters, which exhibited high catalytic performance in acid environment. The Fe-pyrrolic N-4 structure was stabilized and optimized for OH* adsorption, resulting in excellent half-wave potential and power density in fuel cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yaxuan Wang, Junfu Li, Shilong Guo, Ming Zhao, Weiwei Cui, Lianfeng Li, Lei Zhao, Zhenbo Wang
Summary: In this study, a new method of battery failure diagnosis in terms of capacity fading is proposed based on the heterogeneous multi-physics aging model of lithium-ion batteries. The key parameters are obtained by using a parameter identification method, and the parameter boundaries when the battery is on the verge of failure are obtained through a model-driven method. Monitoring the key parameters allows for online diagnosis of battery failure and provides an early warning signal when the battery reaches the end of its life, ensuring battery performance and safety.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Lixiao Shen, Miao Ma, Zigang Zhao, Fengdi Tu, Jing Liu, Bin Xu, Yunlong Zhang, Lei Zhao, Guangjie Shao, Zhenbo Wang
Summary: The impact of carbon structure on the performance of carbon-supported catalysts has been studied under different relative humidity conditions. Low-loading solid carbon catalysts perform well at low humidity, while high-loading porous carbon catalysts excel at high humidity. Furthermore, porous carbon catalysts show high mass activity at low current density due to their reduced susceptibility to sulfonate poisoning. On the other hand, solid carbon catalysts facilitate a more uniform ionomer thin-film and create a more active three-phase interface area, resulting in satisfactory performance at high current density and low local-O2 transport resistance.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Zhaowei Zhang, Junya Shao, Junfu Li, Yaxuan Wang, Zhenbo Wang
Summary: This study developed an electrochemical model for lithium batteries and used three methods for current and SOC estimation. The results showed that the extended Kalman filter algorithm (EKF) performed the best in terms of estimation accuracy and convergence speed.
Article
Electrochemistry
Shujian Zhang, Hongmo Zhu, Lanfang Que, Xuning Leng, Lei Zhao, Zhenbo Wang
Summary: This study investigates the effect of carrier film phase conversion time on the properties of polymer electrolytes in all-solid-state lithium-ion batteries. By optimizing the preparation process, the best carrier film phase conversion time was determined to be 40 hours. The optimized polymer electrolyte exhibits high ionic conductivity, excellent cyclic performance, and thermal stability.
Article
Chemistry, Physical
Min Liu, Qiang Zhang, Xueliang Wang, Jianxin Gao, Qianfeng Liu, Erdong Wang, Zhenbo Wang
Summary: Acetic acid-sodium alginate (SA)/NaCl solid anolyte biphasic electrolytes were designed to expand the voltage window and alleviate anode corrosion in the magnesium-air (Mg-air) battery. The prepared SA/NaCl solid electrolyte has a high ionic conductivity and the anode utilization efficiency significantly increased from 9.6% to 61.5%. The assembled Mg-air battery achieved a high open circuit potential (OCP) of 2.59 V, an average discharge voltage of 2.01 V, and a high anode energy density of 2984.5 W h kg(-1) at 0.5 mA cm(-2).
SUSTAINABLE ENERGY & FUELS
(2023)