CHEMISTRY-A EUROPEAN JOURNAL
·
2025
·Vol. 31
·期 12
·e202403915
·
IF 3.7
Qi Pan,Wanliang Yang,Chen Wu,Dongjia Xie,Yuan Wang
Graphical A ploy(1,3-dioxolane) (PDOL) layer was constructed by a Al(OTf) 3 -induced in-situ solidification process between the interface of LATP and anode/cathode. The as-prepared PDOL as an “interfacial adhesive” can fill the gap between the LATP and the electrode, providing a better interfacial contact and reduced interfacial impedance. Such interfacial adhesive layer not only effectively prevents Li metal from reducing LATP but also provides intimate interface contact and limits unnecessary electron transport. Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) as the solid-electrolyte has attracted much attention for Li-ion batteries. However, the unstable LATP/Li interface and the insufficient contact between the anode/cathode and LATP usually lead to the structural collapse of LATP and the large solid–solid interfacial resistance for Li+ transport. Herein, a poly(1,3-dioxolane) (PDOL) adhesive layer was constructed by a Al(OTf) 3 -induced in-situ solidification process between the interface of LATP and anode/cathode. Such PDOL interfacial adhesive layer alleviates adverse reduction reactions at the LATP/Li interface and provides stable and well-contacted bilateral electrode interfaces. Benefitting from the PDOL interfacial adhesive, the Li|adhesive-LATP|Li symmetric cells achieve a current density up to 0.7 mA cm −2 and exhibit a good cycling stability for more than 2750 h at 0.1 mA cm −2 , and the Li|adhesive-LATP|LiFePO4 solid-state batteries with interface modification exhibit a capacity of 158 mAh g −1 at 0.2 C with a retention of 94 % after 100 cycles.
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高影响因子
Sustainable Energy & Fuels
·
2025
·
IF 4.1
Yitao Hui,Xianhe Meng,Aobo Yue,Qi Shen,Bingyu Liu,Nengjun Yu,Qiaoling Kang,Lijing Yan,Chubin Wan,Tingli Ma
Na superionic conductors (NASICONs) have attracted much attention due to their unique framework structure and high capacity. However, the poor intrinsic electron conductivity severely limits further development. This work develops a soft-hard carbon composite modified Na3V2(PO4)3 (NVP) cathode with excellent rate performance and long-term cycling stability. The optimized sample exhibits excellent electrochemical performance and can release a specific discharge capacity of 102.7 mAh g-1 at 1 C rate. At the same time, after 5000 cycles at 20 C rate, the discharge capacity can reach 82.3 mAh g-1, and the capacity retention rate is 100.1 %. The morphological characteristics of the NVP/C samples were investigated, Meanwhile, combined with Raman spectroscopy and electrochemical analysis, these results revealed that the synergistic interaction between soft and hard carbon components significantly enhances electronic conductivity and facilitates rapid ionic transport. This work provides a unique idea for the surface modification and synthesis of NASICON cathode materials for sodium-ion batteries.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Houlin Cheng,Jingxuan Li,Pengcheng Wang,Youzu Xu,Zhiyang Zhang,Qian Feng,Hurong Yao,Zhigao Huang,Jiaxin Li
This work utilized Y 2 O 3 and rGO as additives, and systematically regulated their spatial distribution and composite ratio with Na 3 V 2 (PO 4 ) 3 (NVP) to overcome the bottlenecks faced by NVP, such as intrinsically low electronic conductivity, severe interfacial side reactions, and structural instability during cycling. The modified NVP cathode can significantly enhance its electrochemical performance, and improve its sodium storage and thermal safety performance in the pouch-type full cell. The as-prepared NVP@Y 2 O 3 @rGO material achieves an 84 % capacity retention rate after 1000 cycles at 1C&27 °C, while still delivering a specific capacity of 49.6 mAh g −1 at an ultra-high rate of 30C. Under elevated temperature of 45 °C, it maintains 91.5 % capacity retention after 400 cycles at 1C. In contrast, the pristine NVP retains only 38.2 %. Moreover, it exhibits a reversible capacity of 63.6 mAh g −1 even at an ultra-high rate of 40C. More importantly, pouch-type full cell testing further confirms its superior cycling stability (60.8 % capacity retention after 100 cycles, representing a 30.5 % improvement over the unmodified sample). Mechanistic studies reveal that the combined effects of Y 2 O 3 and rGO effectively facilitate electron/ion transport, suppress electrode-electrolyte interfacial side reactions, mitigate volume change stress, and enhance structural integrity. This work offers new insights for designing high-stability cathode materials for sodium-ion batteries.
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ChemSusChem
·
2022
·Vol. 15
·期 11
·e202200313
·
IF 9.14
Gaoli Guo,Xiaoping Tan,Kaidi Wang,Huang Zhang
Aqueous zinc batteries have been regarded as a promising energy storage technology due to their high energy, high material abundance, low toxicity, and intrinsic safety. NASICON-type materials have been proposed as efficient cathodes for rechargeable batteries, yet they suffer from fast degradation and low Coulombic efficiency in aqueous batteries. Here we demonstrate that a rationally designed aqueous electrolyte containing a supporting Na salt and polymer additive can efficiently suppress the water activity through hydrogen bonding and facilitate the anion involvement in interfacial reactions, thus enabling the stable operation of sodium superionic conductor (NASICON) cathodes in aqueous zinc batteries. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the cell with zinc metal anode exhibits high cycling Coulombic efficiencies (around 99.9 % in average) with a steady output voltage and capacity retention for 300 cycles. This work addresses the potential issues with NASICON-type cathodes in aqueous zinc batteries and proposes an effective solution via fundamental interphasial chemistry to design efficient and sustainable aqueous electrolytes. Graphical Engineering electrode-electrolyte interphase : A rationally designed aqueous electrolyte with bi-cation and polymer additive is reported for aqueous zinc batteries with NASICON cathodes. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the full cells exhibited remarkable cycling stability and efficiency, benefiting from the well-suppressed material dissolution by electrolyte-induced interfacial engineering.
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IONICS
·
2016
·Vol. 23
·期 3
·575-583
·
IF 2.119
He Zhangxing,Jiang Yifan,Sun Dan,Dai Lei,Wang Haiyan
Inferior rate capability is a big challenge for LiTi 2 (PO 4 ) 3 anode for aqueous lithium-ion batteries. Herein, to address such issue, we synthesized a high-performance LiTi 2 (PO 4 ) 3 /carbon/carbon nanotube (LTP/C/CNT) composite by virtue of high-quality carbon coating and incorporation of good conductive network. The as-prepared LTP/C/CNT composite exhibits excellent rate performance with discharge capacity of 80.1 and 59.1 mAh g −1 at 10 C and 20 C (based on the mass of anode, 1 C = 150 mA g −1 ), much larger than that of the LTP/C composite (53.4 mAh g −1 at 10 C, and 31.7 mAh g −1 at 20 C). LTP/C/CNT also demonstrates outstanding cycling stability with capacity retention of 83.3 % after 1000 cycles at 5 C, superior to LTP/C without incorporation of CNTs (60.1 %). As verified, the excellent electrochemical performance of the LTP/C/CNT composite is attributed to the enhanced electrical conductivity, rapid charge transfer, and Li-ion diffusion because of the incorporation of CNTs.
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Small
·
2026
·
IF 11.8
Hongwei Zhang,Shan Wang,Ziqi Wen,Jingping Wang,Youlong Xu
Na 3.5 MnCr 0.5 Ti 0.5 (PO 4 ) 3 (NMCrTP) demonstrates significant development potential as a cathode material for sodium-ion batteries owing to its low cost and high discharge plateau. However, the severe potential hysteresis phenomenon caused by Mn·Na anti-site defects (Mn·Na-ASD) of Mn 2+ residing in Na vacancies is hindering its performance release. Here, a strategy is proposed to alleviate the anti-site defects in NMCrTP through doping Mo at the Ti sites using the sol–gel method. Rietveld refinement results confirm that the content of Mn·Na-ASD decreases from 6.30% in NMCrTP/C to 0.98% in NMCrTP/C-0.05Mo. Meanwhile, Hall effect measurements verify that the Mo donor induces the carrier-type transformation from p-type to n-type, enhancing electronic conductivity from 3.07 × 10 −3 to 3.61 × 10 −3 S cm −1 . Moreover, the ion diffusion coefficient measured by GITT increases from 3.96 × 10 −12 to 1.34 × 10 −11 cm 2 /s. In result, the mean discharge potential of the NMCrTP/C-0.05Mo cathode increases from 2.62 V (vs. Na + /Na) to 3.47 V, and the electrochemical polarization decreases from ΔV = 0.20 to 0.09 V. As expected, the NMCrTP/C-0.05Mo cathode delivers an excellent rate performance of 88.4 mAh g −1 at a high rate of 10 C. This work presents an effective strategy to alleviate the potential hysteresis of the NMCrTP cathode for high-rate SIBs.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Weijie Yan,Tao Li,Peihong Shi,Zhaoqi Hu,Jinliang Huang,Wenfa Fang,Libin Xia
NIR pc-LEDs develop rapidly due to its spectral tunability and compact design. However, NIR phosphors with both high efficiency and superior thermal quenching resistance are scarce. In this study, a novel NASICON-type structure phosphate NaAlNb(PO 4 ) 3 :Cr 3+ phosphor was synthesized successfully. The crystal structures and the luminescence behaviors were systematically investigated. The phosphor exhibits a broadband NIR emission from 700 to 1100 nm, centered at 808 nm and with a full-width at half maximum (FWHM) of 131 nm. Owing to the high structural rigidity (Θ D = 624.9 K) and wide optical bandgap (E g = 4.1 eV), NaAlNb(PO 4 ) 3 :Cr 3+ shows a high internal quantum efficiency (IQE) of 87% and excellent thermal quenching resistance (retaining 84.19% of its room-temperature intensity at 373 K). A NIR pc-LED was fabricated by combining the as-prepared phosphor with a 460 nm blue LED chip, achieving a high photoelectric conversion efficiency of 18.37% and a strong NIR output power of 50.19 mW at a driving current of 100 mA. All results indicate the NaAlNb(PO 4 ) 3 :Cr 3+ is a promising phosphor for NIR light practical applications.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 11
·8385-8397
·
IF 2.993
Zhang Hui,Zhao Yanming,Wen Mingming,Dong Youzhong,Fan Qinghua,Kuang Quan,Liu Huatao,Lian Xin
A new sodium ferrous orthophosphate Na
x
Fe 4 (PO 4 ) 3 (1.1 ≤ x ≤ 1.2) with P 2 1 / n symmetry has been successfully synthesized via a solid-state reaction for the first time. The structure consists of FeO 5 pyramids, FeO 6 octahedron, and PO 4 tetrahedra which form large six-sided tunnels along \( \vec{b} \) direction and three- or four-sided tunnels running along \( \vec{a} \) direction. When evaluated as the anode materials for sodium-ion batteries, the first discharge and charge capacities of 553 and 264 mAh g −1 for Na 1.1 Fe 4 (PO 4 ) 3 /C and 583 and 315 mAh g −1 for Na 1.2 Fe 4 (PO 4 ) 3 /C, respectively, can be obtained at 10 mA g −1 current density. Compared to the Na 1.1 Fe 4 (PO 4 ) 3 /C, Na 1.2 Fe 4 (PO 4 ) 3 /C exhibits a better cycling performance, where the charge capacity of about 100 mAh g −1 can still be maintained after 15 cycles. The electrode kinetics are investigated further by the electrochemical impedance spectroscopy.
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ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Xingwei Liu,Xiaoyu Jiang,Faping Zhong,Xiangming Feng,Weihua Chen,Xinping Ai,Hanxi Yang,Yuliang Cao
Sodium-ion batteries (SIBs) have been viewed as a promising candidate for grid-scale energy storage systems owing to their low cost and abundant Na resources. However, insufficient safety and poor cycling performance of current SIBs are hampering their implementation. Herein, we develop a symmetric SIB by employing Na3V2(PO4)3 as both cathode and anode along with the nonflammable triethyl phosphate dissolving 0.9 M NaClO4 as the electrolyte. The symmetric SIB demonstrates a superior rate capability (35.1 mA h g–1 at 32 C) and excellent cycling performance with a capacity retention of 88.9% after 500 cycles at 2 C. This work demonstrates a new avenue to construct safe and long-cycle-life SIBs with a simple electrode manufacturing process.
研究领域:
储能
·
电化学
·
材料科学
·
电池技术
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
He Yixin,Wang Yida,Zeng Sihan,Si Juntao,Li Yuexin,wang Rui,Zhang Cheng,Chen Chunhua
NASICON-type NaTi 2 (PO 4 ) 3 as an electrode material for sodium-ion batteries has attracted considerable attention due to its high structural stability and safety, yet its low intrinsic electronic conductivity limits high-rate and low-temperature performance. In this work, an oxygen-vacancy-rich Na 1.3 Ti 1.8 Ni 0.1 Sb 0.1 (PO 4 ) 3 @C (N 1.3 T 1.8 N 0.1 S 0.1 P@C) nanopowder as a high-performance anode material is synthesized by a solvothermal method. The Ni 2+ /Sb 5+ co-doping effectively modulates the local TiO 6 /PO 4 lattice environment, introduces oxygen vacancies, and optimizes the lattice electronic structure, enhancing both electron and ion transport. A continuous carbon coating forms a stable conductive network, further improving kinetics and structural integrity. As a result, Na∥N 1.3 T 1.8 N 0.1 S 0.1 P@C half-cells retain 91% of their capacity after 5000 cycles at 20 C and maintain 86% capacity over 10,000 cycles at 10 C under 0 ° C. The full cell paired with Na 3 V 2 (PO 4 ) 3 cathodes exhibits 87% capacity retention after 1000 cycles at 5 C and delivers excellent performance even at 50 C without pre-sodiation, highlighting their potential for low-temperature applications. This study provides a general doping-defect engineering strategy for NASICON-type anodes, enabling high-rate, low-temperature, and long-cycle performance for sodium-ion batteries.
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高影响因子
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 15
·4708-4716
·
IF 4
Zhaoyang Wang,Jiaxuan Han,Dong Wang,Lingyang Liu,Wenjing Shi,Fangyu Xiong,Haizheng Tao
Na3V2(PO4)3 (NVP) is regarded as one of the most promising cathode materials for sodium-ion batteries (SIBs). However, it suffers from a dense bulk structure and low intrinsic electronic conductivity, which lead to limited electrochemical performances. Herein, we propose a surfactant-assisted molding strategy to regulate the pore-forming process in NVP/C composite cathode materials. More precisely, the forming process of the pores in NVP could be easily controlled by utilizing the huge difference in critical micelle concentration of a surfactant (cetyltrimethylammonium bromide, CTAB) in water and ethanol. By reasonably modulating the ratio of water and ethanol in the solution, the as-synthesized NVP/C sample exhibited a three-dimensional interconnected structure with hierarchical micro/meso/macro-pores. Benefiting from these hierarchical porous structures in NVP/C, the structural stability, contact surface with the electrolyte, and electronic/ionic conductivity were improved simultaneously; whereby the optimized porous NVP/C sample exhibited an excellent high-rate performance (61.3 mA h g−1 at 10 C) and superior cycling stability (90.2% capacity retention after 500 cycles at 10 C).
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Materials Today Energy
·
2022
·
IF 9.257
Can Luo,Ruyun Qiu,Gen Li,Xiaojun Shi,Zhifei Mao,Rui Wang,Jun Jin,Beibei He,Yansheng Gong,Huanwen Wang
Sodium-ion hybrid capacitors (SIHCs) are promising technology for energy storage because they combine the merits of high-energy batteries and high-power capacitors as well as naturally abundant sodium resource. However, conventional SIHCs consume a mass of electrolyte during the charge process, thus generating some side reactions at high potentials. In this work, we report a novel rocking-chair SIHC using Na 3 V 2 (PO 4 ) 3 /carbon composite nanofibers (denoted as “NVP@CNF”) as binder-free cathodes and SiO 2 -templated hollow carbon nanofibers (HCNF) as the capacitive anode. Resulting from the unique carbon-encapsulation configuration, the NVP@CNF cathode demonstrates excellent rate capability (105.8 mAh/g at 0.5C; 66.9 mAh/g at 100C) and long-term cycling stability (98% capacity retention after 2000 cycles) in sodium half-cells. The as-fabricated HCNF||NVP@CNF SIHC device delivers a high energy density of 216.4 Wh/kg at a power density of 381.8 W/kg. Even at an increased power density of 15272.7 W/kg, the energy density is still as high as 123.0 Wh/kg (based on the total mass of active materials in both electrodes). These results provide a new route to design various flexible self-supporting composite fiber electrodes through a simple electrospinning encapsulation strategy, which finally pushes the development of next-generation hybrid energy storage devices.
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