SURFACE & COATINGS TECHNOLOGY
·
2021
·
IF 4.158
Bin Li,Boxuan Jin,Ruochen Zhang,Kaixuan Ma,Xianwen Wu,Lei Dai,Ling Wang,Zhangxing He
Metal zinc is used as anode in aqueous zinc-ion batteries due to its environmental protection, abundant storage, and high theoretical capacity. However, zinc anode has many challenges such as side reactions and zinc dendrites, which impede the further development of aqueous zinc-ion batteries. A facile strategy of constructing Sn doped NaTi 2 (PO 4 ) 3 (NTP/Sn) protective layer on surface of zinc anode (Zn@NTP/Sn) was adopted to enhance the cycling stability of zinc anode in this work. Sn doped NaTi 2 (PO 4 ) 3 was used to realize high-performance zinc anode via the structure design and interfacial characteristics, which are beneficial to accelerating transfer of Zn 2+ and improving interface performance. The average voltage hysteresis of Zn@NTP/Sn symmetric cell is only 17.4 mV at the current density of 0.4 mA cm −2 , which is much lower than that of bare Zn (75.8 mV) and Zn@NTP (43.7 mV) symmetric cells. Furthermore, Zn-MnO 2 full cell using Zn@NTP/Sn anode also shows good cycling performance. After 500 cycles at a current density of 1.2 A g −1 , Zn@NTP/Sn-MnO 2 full cell has the highest capacity of 124.2 mAh g −1 . While the bare Zn-MnO 2 and Zn@NTP-MnO 2 full cells only have 39.3 mAh g −1 and 74.2 mAh g −1 . The excellent electrochemical performance is related to improvement of wettability , increase of cell volume, and reduction of side reactions. In general, this work realizes a synergistic strategy combining structural design and interfacial modification by doping Sn for NTP as a protective coating layer for zinc anode, which provides a simple strategy for high-performance rechargeable aqueous zinc-ion batteries.
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DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2023
·
IF 8.6
Yaqi Chen,Xieyu Xu,Jianli Cheng,Xuyang Wang,Dawei Wang,Yongjing Wang,XingXing Jiao,Jian Chen,Shizhao Xiong,Zhongxiao Song,Yangyang Liu
All-solid-sate batteries (ASSBs) with a NASICON-type solid-state electrolyte (SSE) of Li1.3Al0.3Ti1.7(PO4)3 (LATP) can be accepted as a promising candidate to significantly improve safety and energy density due to their high oxidation potential and high ionic conductivity. However, thermodynamic instability between the cathode and LATP is scarcely investigated during cosintering preparation for the integrated configuration of ASSBs. Herein, the structural compatibility between commercially layered LiNi0.5Co0.2Mn0.3O2 (NCM523) and LATP SSE was systematically investigated by cosintering at 600 °C. It is noticeable that an extreme side reaction between Li from NCM523 and phosphate from LATP happens during its cosintering process, leading to a severe phase transition from a layered to a spinel structure with high Li/Ni mixing. Consequently, the capacity of NCM523 is lost during the preparation of the NCM523–LATP composite cathode. Based on this, we suggested that the interface modification of the NCM523/LATP interface is valued significantly to inhibit this extreme side reaction, quickening the application of LATP-based ASSBs.
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DOI
高影响因子
SOLID STATE IONICS
·
2020
·
IF 3.107
Erqing Zhao,Yudi Guo,Yuan Xin,Guangri Xu
Nasicon-type Li 1+x Al x Ge 2-x (PO 4 ) 3 (x = 0–0.5) electrolytes have been prepared via a facile and economic method. All synthetic electrolyte samples show Nasicon structure and good crystallinity . The Al doping content has a great influence on the electrical conductivity of electrolyte. The electrolyte with the composition of Li 1.4 Al 0.4 Ge 1.6 (PO 4 ) 3 exhibits a highest electrical conductivity of 2.72 × 10 −4 S/cm at room temperature , which is mainly attributable to fewer impurity and dense electrolyte structure. The LiFePO 4 /Li cell assembled with this electrolyte delivers an initial specific discharge capacity of 127.86 mAh g −1 at a charge/discharge current density of 0.5C at 60 °C, which shows an excellent cycling performance with high discharge capacity of 131.2 mAhg −1 after 150 cycles. These results suggest that the Li 1.4 Al 0.4 Ge 1.6 (PO 4 ) 3 electrolyte is a potential electrolyte for all solid state lithium-ion battery.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yu Zhou,Zishuai Zhang,Yu Zhao,Jiefei Liu,Kwok-ho Lam,Xingyu Zheng,Hongtao Lou,Xianhua Hou
Aqueous rechargeable batteries have promising application in large-scale energy storage owing to their cost-effective, eco-friendly, high safety and good electrochemical performance. An aqueous rechargeable hybrid sodium/zinc battery with Zn anode, Na 3 MnTi(PO 4 ) 3 cathode and 0.5 mol L -1 CH 3 COONa and Zn(CH 3 COO) 2 mixed electrolyte has been designed for the first time. The battery delivered a reversible and stable capacity of 95.0 mAh g −1 at 1.5 C for 50 cycles with a high and flat working voltage of 1.75 V vs. Zn 2+ /Zn. Impressively, the battery showed the excellent cycling performance and superior rate capability, which can be cycled at 10.0 C for 2000 cycles with a capacity retention of 93.6% and a reversible capacity of 55.6 mAh g −1 at 30.0 C. Meanwhile, the co-intercalation mechanism of hybrid Na + and Zn 2+ in the cathode is elucidated by cyclic voltammogram, ex-situ XRD, ex-situ XPS and Rietveld refinement analysis. This work gets insight into the charge/discharge processes of hybrid ions for NASICON-structured Na 3 MnTi(PO 4 ) 3 , providing a feasible way to design cost-effective, high safety and long-term aqueous rechargeable batteries.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2015
·
IF 2.999
Yang Xia,Si Shi,Chongge Li,Chu Liang,Yongping Gan,Hui Huang,Xinyong Tao,Wenkui Zhang
A series of Sn-doped Li 3 V 2− x Sn x (PO 4 ) 3 /C ( x = 0, 0.1, 0.15, 0.2) samples were synthesized via a citric acid assisted sol–gel method. XRD patterns indicated that all the Li 3 V 2− x Sn x (PO 4 ) 3 /C samples were pure single phase with a monoclinic structure (space group P 2 1 / n ) and well crystallized. The structural refinement results and HRTEM analysis both indicated that Sn-doping did not alter the lattice structure of Li 3 V 2 (PO 4 ) 3 , but increased the unit cell volume. SEM images revealed that Sn-doping has no obvious effects on the morphology and particle size of Li 3 V 2 (PO 4 ) 3 . HRTEM, XRF and Raman results demonstrated that a thin carbon layer was coated on the surface of Li 3 V 2− x Sn x (PO 4 ) 3 /C samples with a similar carbon content and good quality. The electrochemical performance was evaluated using coin-type half cells. Among the samples synthesized in this work, Li 3 V 1.85 Sn 0.15 (PO 4 ) 3 /C exhibited the electrochemical performance in terms of specific capacity, rate capability, cycling performance. CV and EIS results implied that optimizing Sn-doping contents with x = 0.15 could greatly enhance the structural stability of Li 3 V 2 (PO 4 ) 3 during the charge–discharge processes, as well as increase electrical conductivity with a lower charge transfer resistance and a higher Li + diffusion coefficient .
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Haolong Tan,Shan Xiao,Wensheng Yang,Quan Xie,Yunjun Ruan,Qian Chen,Tinghong Gao
The rapid advancement of wearable electronics and miniaturized medical devices demands high-safety, low-cost energy storage. Sodium-ion batteries (SIBs) attract attention for their resource advantages and lithium-ion battery-like electrochemical mechanisms, but their performance is limited by Na + ’s larger ionic radius—causing severe lattice stress and electrode degradation. This study focuses on NASICON-type Na 3 V 2 (PO 4 ) 3 (NVP) cathodes, developing an innovative sol–gel spin-coating method combined with rapid thermal annealing (RTA) to grow high-quality films on carbon-coated Ti substrates. Multi-scale characterization confirms the films have a typical NASICON structure, smooth surface, uniform element distribution, and stable vanadium valence. Electrochemically, the film electrode delivers an initial reversible capacity of 83mAh g −1 at 1 A g −1 (70.9 % of theoretical value) and retains 81.3 % capacity after 300 cycles. Cyclic voltammetry shows reversible redox peaks at 0.49/0.66 V, and electrochemical impedance spectroscopy gives a low ohmic resistance of 13.3 Ω. Notably, RTA enhances film crystallinity and densification while simplifying conventional 8–10 h multi-step sintering into a 1-h single step, offering an efficient, low-energy industrial solution for scalable all-solid-state SIB production.
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Renming Zhan,Bolei Shen,Qiuju Xu,Youquan Zhang,Yushan Luo,Heng Liu,Hao Chen,Feng Liu,Changming Li,Maowen Xu
Pristine Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 and carbon-coated Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 nano-particles are synthesized by one-step solid-phase reaction method. The full battery based on Na 3 Fe 0.5 V 1.5 (PO 4 ) 3 @C nano-particles as cathode and commercial hard carbon as anode outputs a high working voltage about 3.3 V and exhibits superior-rate performance. While the rate increases from 0.5 to 1, 2 and 5 C, the discharge capacity of full battery slightly decreases from 110 to 94, 88, 79 mA h g −1 gradually. Moreover, it shows excellent cycle stability with a capacity retention of 93.8% after 200 cycles at 0.5 C.
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DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 15
·9581-9585
·
IF 12.732
Yuemin Du,Yijie Liu,Sixie Yang,Chao Li,Zhu Cheng,Feilong Qiu,Ping He,Haoshen Zhou
The fossil fuel crisis and global warming are becoming more and more severe in this century, while the exploration of human survival on Mars is being pushed forward steadily. Hence, it is meaningful to effectively utilize CO2, the main greenhouse gas and a major component of the Martian atmosphere. Due to their high capacity and ability to capture CO2, Li–CO2 batteries have received much attention. However, there are problems that still need to be solved relating to Li–CO2 batteries, including the instability of the electrolyte and the non-negligible polarization caused by the formation and decomposition of Li2CO3. To address these issues, an all-solid-state Li–CO2 battery, which uses RuO2 nanoparticles combined with single-walled carbon nanotubes (SWCNTs) as the cathode material and a sodium super ionic conductor (NASICON)-type ceramic solid electrolyte, Li1.5Al0.5Ge1.5(PO4)3 (LAGP), has been developed and it operates over a broad temperature range. Under a pure CO2 atmosphere, this well-designed battery shows a discharge capacity of 2499 mA h g−1 and a charge capacity of 2137 mA h g−1 in the first cycle at 60 °C, and stable cycling performance over 30 cycles under a capacity limitation of 500 mA h g−1 at a current density of 50 mA g−1. This result enhances the possibility of the utilization of the Li–CO2 battery in the future.
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DOI
高影响因子
Materials
·
2020
·Vol. 13
·期 7
·1719
·
IF 3.057
Qinghui Li,Chang Xu,Bing Huang,Xin Yin
NASICON-type solid electrolytes with excellent stability in moisture are promising in all-solid-state batteries and redox flow batteries. However, NASIOCN LiZr2(PO4)3(LZP), which is more stable with lithium metal than the commercial Li1.3Al0.3Ti1.7(PO4)3, exhibits a low Li-ion conductivity of 10−6S cm−1because the fast conducting rhombohedral phase only exists above 50 °C. In this paper, the high-ionic conductive rhombohedral phase is stabilized by Y3+doping at room temperature, and the hot-pressing technique is employed to further improve the density of the pellet. The dense Li1.1Y0.1Zr1.9(PO4)3pellet prepared by hot-pressing shows a high Li-ion conductivity of 9 × 10−5S cm−1, which is two orders of magnitude higher than that of LiZr2(PO4)3. The in-situ formed Li3P layer on the surface of Li1.1Y0.1Zr1.9(PO4)3after contact with the lithium metal increases the wettability of the pellet by the metallic lithium anode. Moreover, the Li1.1Y0.1Zr1.9(PO4)3pellet shows a relatively small interfacial resistance in symmetric Li/Li and all-solid-state Li-metal cells, providing these cells a small overpotential and a long cycling life.Keywords:NASICON;hot pressing;interfacial resistance;Li-ion conductivity;all-solid-state batteries
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DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 12
·7817-7825
·
IF 12.732
Shanshan Duan,Can Huang,Min Liu,Zhiwen Cao,Xiaocong Tian,Shuen Hou,Jiangyu Li,Boyuan Huang,Hongyun Jin
NASICON-type solid state electrolytes have attracted great interest in all-solid-state batteries, and many attempts have been applied to enhance the ionic conductivity. It is generally believed that low activation energy governs the high ionic conductivity while the prefactor, particularly migration entropy, is often overlooked. Here, employing a combination of electrochemical strain microscopy, speed of sound measurements, and electrochemical impedance spectra, we investigate the structure–property relationships governing ionic conduction behavior in the Li1−3xGaxZr2(PO4)3 system. A sharp increase in the prefactor upon Ga substitution is attributed to the increased migration entropy while the increase in activation energy can be rationalized in terms of the inductive effect. These two competitive factors determine the final ionic conductivity.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 23
·1-13
·
IF 2.8
Xu Cheng,Liu Ke,Lu Yong,Xu Qi
Sodium-ion batteries (SIBs), as an emerging energy storage technology, have been recognized as one of the most promising alternatives to lithium-ion batteries (LIBs). Among various cathode materials, the NASICON-type Na 4 VMn(PO 4 ) 3 (NVMP) composite material has garnered considerable attention owing to its distinctive 3D framework structure, high redox potential, stable crystal structure, and rapid Na + diffusion rate. Nevertheless, the practical application of NVMP cathodes is constrained by several inherent limitations, including inherently low electronic conductivity, Mn 3+ Jahn–Teller distortion, and structural degradation mechanisms, which collectively contribute to compromised rate capability and limited cycling durability. To tackle this challenge, an N-doped dual nano-carbon coating was applied to the NVMP material to enhance the conductivity of the composite. Building upon this foundation, a series of Na 4 VMn 1- x Cr x (PO 4 ) 3 /NC@CNTs cathode materials (where x = 0, 0.25, 0.5, 0.75, and 1) were successfully prepared using the sol–gel method, enabling targeted regulation of Mn/Cr ratios for enhanced electrochemical performance. The N-doped dual nano-carbon coating is capable of forming carbon layer defects and active sites, as well as constructing a 3D conductive network structure, which can enhance the diffusion rate of Na + ions and shorten their transport path. The results indicate that the Na 4 VMn 0.5 Cr 0.5 (PO 4 ) 3 /NC@CNTs cathode material demonstrates the highest discharge capacity, achieving 132.1 mAh·g −1 when x = 0.5. Notably, the capacity decreases rapidly at high rates, potentially attributed to the collapse of the crystal structure and excessive polarization, resulting in a deterioration of the material’s electrochemical performance. The optimized Na 4 VCr(PO 4 ) 3 /NC@CNTs (when x = 1) demonstrates exceptional rate performance with 91.2% capacity retention at 1C, accompanied by significantly reduced charge transfer resistance (Rct = 331.9 Ω). This study establishes a design paradigm for NASICON-type cathode materials through dual-transition metal synergistic doping and demonstrates the efficacy of Cr/Mn co-substitution in balancing ionic/electronic conductivity for next-generation high-power sodium-ion batteries.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yingshuai Wang,Qianchen Wang,Xiangyu Ding,Meng Wang,Yuhang Xin,Hongcai Gao
As a promising cathode material for sodium-ion batteries, the NASICON-structured Na 4 MnV(PO 4 ) 3 (NMVP) possesses a high working voltage with two discharge potential plateaus located at ∼3.4 V and 3.6 V from the V 4+ /V 3+ and Mn 3+ /Mn 2+ redox couples, respectively. However, the rate capability and cycling stability of NMVP is unsatisfactory because of the low electronic conductivity and dissolution of manganese. In this work, a series of NMVP@C-xN (x = 10, 20 and 30) was synthesized using a sol-gel method with the generation of a nitrogen-doped carbon on the surface of NMVP particles to reveal the effect of heteroatom-doped carbon coating on improving the electrochemical performance of the cathode material. Among the prepared samples, NMVP@C–20N exhibited a high initial reversible capacity of 103.8 mAh g −1 at 0.1 C and an excellent cycling stability with a capacity retention of 86.1 % after 2000 cycles at 5 C. The excellent performance of the cathode material should be ascribed to the generation of defects and active sites of the nitrogen-doped carbon coating, leading to increased electronic conductivity and diffusion rate of sodium ions.
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DOI
高影响因子
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