Carbon Energy
·
2024
·
IF 19.5
Guobao Xu,Liyue Yang,Zhihao Yan,Zhikai Huang,Xue Li,Gencai Guo,Ye Tian,Liwen Yang,Jianyu Huang,Yaru Liang,Shulei Chou
Though plenty of research has been conducted to improve the low intrinsic electronic conductivity of NASICON-structured NaTi 2 (PO 4 ) 3 (NTP), realizing sodium-ion batteries with high areal/volumetric capacity still remains a formidable challenge. Herein, a multiscale design from anode material to electrode structure is proposed to obtain a gadolinium-ion-doped and carbon-coated NTP composite electrode (NTP-Gd-C), in which gadolinium ion doping, oxygen vacancy, optimized structure, N-doped carbon coating, and bridging on the three-dimensional network are simultaneously achieved. In the whole electrode, the excellent hierarchical electronic/ionic conductivity and structural stability are simultaneously improved via the synergistic optimization of NTP-Gd-C. As a result, excellent electrochemical performances of NTP-Gd-C electrode with a high areal/volumetric capacity of 1.0 mAh cm −2 /142.8 mAh cm −3 , high rate capability (58.3 mAh g −1 at 200 C), long cycle life (ultralow capacity fading of 0.004% per cycle under 10,000 cycles), and wide-temperature electrochemical performances (97.0 mAh g −1 at 2 C under −20°C) are achieved. Moreover, the NTP-Gd-C//Na 3 V 2 (PO 4 ) 3 /C full cell also delivers an excellent rate capacity of 42.0 mAh g −1 at 200 C and long-term high-capacity retention of 66.2% after 4000 cycles at 20 C. Highlights Developing high-performance sodium-ion batteries with the multiscale designed NaTi 2 (PO 4 ) 3 (NTP)-Gd-C material as the anode. Demonstrating the enhanced intrinsic ionic/electronic conductivity and structural stability of NTP-Gd-C electrode. Revealing the great potential for commercial applications of the NTP-Gd-C material.
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xuan Wang,Shuo Huang,Benben Wei,Min Liu,Bo Yang,Ruoqing Liu,Hongyun Jin
All-solid-state batteries with oxide electrolytes and high-nickel layered oxide cathodes (LiNixCoyMnzO2 and LiNixCoyAlzO2, x + y + z = 1, x ≥ 60%) have received widespread attention owing to their high energy density and high safety. However, they generally suffer from interfacial structural instability when coupled with solid-state electrolytes, which strongly diminishes the longevity of the battery. In this work, we propose adding a sacrificial additive C60 to the catholyte buffer layer between Li1.4Al0.4Ti1.6(PO4)3 (LATP) and LiNi0.8Co0.1Mn0.1O2 (NCM811) to enhance the electrochemical stability under high-voltage operating conditions. A uniform and robust cathode–electrolyte interphase (CEI) film enriched with LixPOyFz, LiPxFy, and C60Fn is spontaneously formed on the surface of the cathode particles. In addition, the NCM811/Li solid-state battery delivers a discharge capacity of 150.3 mAh g–1 with a retention of 85% after 200 charge–discharge cycles at 0.5 C. This study offers a practical approach toward realizing LATP-based all-solid-state high-voltage batteries characterized by exceptional cycling stability.
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DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Zihao Han,Zhihao Jiang,Jianwei Dao,Tiqun Wei,Zhenglin Jiang,Zhicheng Lv,Liang Yang
To advance artificial-light plant cultivation and high-performance white light-emitting diodes (LEDs), a phosphor combining excellent luminous thermal stability with superior luminescence is essential. In this work, the high-thermal-stability Ca 3 Bi(PO 4 ) 3 (CBPO): Eu 3+ red phosphors were successfully synthesized via high-temperature solid-state method. The performance of LEDs fabricated with the phosphors is enhanced in the far-red light region. When combined with commercial blue and green phosphors, the resulting white LEDs achieve high color rendering index (R a = 90.3) and low correlated color temperature (CCT = 4898 K). Upon near-ultraviolet (n-UV) excitation, the CBPO: Eu 3+ phosphors exhibit bright red emission at 615 nm, achieving optimal performance at a doping concentration of 0.24. At temperature of 423 K (150 °C), the luminescence intensity of the CBPO: 0.24Eu 3+ phosphor retained 71.9% of room-temperature value, demonstrating its good luminous thermal stability. The fabricated red LEDs with high color purity and spectral characteristics closely matching the absorption properties of plant photosensitive receptor proteins, enhance photosynthetic efficiency and underscore their substantial application potential in plant growth. The fabricated white LEDs can emit bright white light, with R a and R 9 values of 90.3 and 62, which are significantly higher than the standard R a (80) and R 9 (30) of commercial phosphors. We conducted a plant growth experiment in the laboratory, demonstrating that the fabricated red LEDs effectively supplement plant illumination and promote growth. These results demonstrate that the prepared CBPO: Eu 3+ red phosphors hold significant potential for applications in both plant growth lighting and white LEDs.
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DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Zhenyuan Shi,Shuanghui Li,Bolin Chen,Zihan Chen,Tao Li,Yingxue Chen,Dandan Wang,Liming Lin,Jun Gao,Jingzheng Weng,Minquan Tian
To enhance the lithium ion transport properties of solid polymer electrolytes, a novel lithium salt—poly(acrylic acid)–boric acid–anhydrous lithium hydroxide–oxalic acid composite (LiPAAOB)—was designed and synthesized. This composite lithium salt was introduced into a polymer system with polyvinylidene fluoride (PVDF) as the matrix, along with LiTFSI, and NASICON-structured Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) was added as an inorganic filler. The resulting solid polymer electrolyte (SPE) exhibits a three-dimensional ion conduction network. LiPAAOB, with its rich carboxyl and borate ester structures, effectively stabilizes anions, increases lithium salt dissociation, and promotes the ordered migration of Li + by providing continuous lithium-affinitive functional groups, significantly improving the Li + transference number. LATP, as an inorganic filler, forms a three-dimensional spatial framework in the polymer system, offering more pathways for Li + migration. This solid polymer electrolyte achieved an ion conductivity of up to 2.34 × 10 −3 S·cm −1 , a Li + transfer number of 0.7 and an enlarged electrochemical window of 5.3 V (vs. Li + /Li), exhibiting excellent electrochemical reversibility. The assembled LiFePO₄|LiPAAOB@LATP SPE|Li full cell retained 90.2 % of its capacity after 500 cycles at 1C rate, and the Li symmetric cell operated stably for over 1800 h at a current density of 0.2 mA·cm −2 , demonstrating excellent interface compatibility and dendrite suppression capability.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Zhangxing He,Yingqiao Jiang,Jing Zhu,Yuehua Li,Zhen Jiang,Huizhu Zhou,Wei Meng,Ling Wang,Lei Dai
In this paper, LiTi 2-x Sn x (PO 4 ) 3 /C (x = 0, 0.2, 0.3, 0.4) composites were synthesized by sol-gel approach, and were investigated as anodes for aqueous lithium ion battery . Sn doping with proper content has no obvious influence on phase and morphology of the composite, while excessive dosage of Sn can affect its crystal structure. Sn doping can enhance the electrochemical properties of LiTi 2 (PO 4 ) 3 /C (LC). Among LiTi 2-x Sn x (PO 4 ) 3 /C composites, LiTi 1.7 Sn 0.3 (PO 4 ) 3 /C (LC-Sn-0.3) demonstrates the best electrochemical properties. Most importantly, the rate performance of LC can be improved dramatically by Sn doping on Ti sites. LC-Sn-0.3 delivers a discharge capacity of 118.9, 115.3, and 104.2 mAh g −1 at 0.2, 6, and 20 C (1 C = 150 mA g −1 ), respectively, with significant increase of 15.2, 27.4, and 41.9 mAh g −1 compare with LC. In addition, LC-Sn-0.3 exhibits superior cycling performance. The capacity retention for LC-Sn-0.3 can keep 76.8% after 1000 cycles at relatively high rate of 10 C, while only 51.7% of initial discharge capacity is retained for LC. Our study reveals that Sn doping on Ti sites is an efficient and facile method to improve the performance of LiTi 2 (PO 4 ) 3 /C composite for aqueous lithium ion battery.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yuxiang Chen,Xiangyue Liao,Peng Wang,Ji Chen,Xiaoqin Zhang,Xingqiao Wu,Sean C. Smith,Dunmin Lin,Xin Tan,Qiaoji Zheng
The stable three-dimensional framework and high operating voltage of sodium superionic conductor (NASICON)-type Na 3 V 2 (PO 4 ) 3 has the potential to work with long cycle life and high-rate performance; however, it suffers from the poor intrinsic electronic conductivity and low energy density . Herein, Ga 3+ is introduced into Na 3 V 2 (PO 4 ) 3 to activate the V 4+ /V 5+ redox couple at a high potential of 4.0 V for enhancing energy density of the materials (Na 3 V 2-x Ga x (PO 4 ) 3 ). After the partial substitution of Ga 3+ for V 3+ , three redox couples (V 2+ /V 3+ , V 3+ /V 4+ and V 4+ /V 5+ ) of V are reversibly converted in the voltage range of 1.4–4.2 V, suggesting multi-electrons (>2e − ) involved in the reversible reaction, and simultaneously the electronic conductivity of the materials is effectively enhanced. As a result, the cathode with x = 0.75 exhibits excellent electrochemical properties: in the voltage range of 2.2–4.2 V, delivering an initial capacity of 105 mAh/g at 1C with a capacity retention rate of 92.3% after 400 cycles, and providing a stable reversible capacity of 88.3 mAh/g at 40C; and in the voltage range of 1.4–4.2 V, presenting the reversible capacity 152.3 mAh/g at 1C (497.6 Wh kg −1 ), and cycling stably for 1000 cycles at 20C with a capacity decay of 0.02375% per cycle. It is found that the Na 3 V 2-x Ga x (PO 4 ) 3 cathodes possess the sodium storage mechanism of single-phase and bi-phase reactions. This investigation presents a useful strategy to enhance the energy density and cycling life of NASICON-structured polyanionic phosphates by activating high-potential V 4+ /V 5+ redox couple.
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DOI
高影响因子
ChemElectroChem
·
2020
·Vol. 7
·期 19
·4093-4100
·
IF 4.154
Qing Wang,Yang Lu,Jun Jin,Chunhua Chen,Zhaoyin Wen
Graphical Closed borders : A Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) ceramic is adopted to block the migration of polysulfides in Li−S batteries, with solvent-in-salt wetting the electrode/ceramic interfaces. Owing to suppressed dissolution of polysulfides in SIS, the semi-solid-state Li−S batteries show superior capacity retention and long cycling life. Aimed at tackling the shuttle effect in lithium-sulfur (Li−S) batteries, a Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) ceramic is adopted to block the migration of polysulfides. However, the LAGP-based Li−S battery with liquid electrolyte wetting the interfaces still suffers from rapid capacity decay, as polysulfides tend to dissolve into liquid electrolyte and get firmly adsorbed by LAGP. In this work, a dual confinement effect for polysulfides is put forward, enabled by the LAGP ceramic and solvent-in-salt (SIS), wherein the SIS can greatly suppress the dissolution of polysulfides. Owing to the synergistic effect of SIS and LAGP, the semi-solid-state Li−S batteries show superior capacity retention and long cycling life. In particular, at a current density of 0.2 C, the Li−S battery with SIS-modified LAGP ceramic electrolyte delivers a high initial reversible capacity of 1251.7 mAh g −1 and long cycle life of over 250 cycles with a decay rate of only 0.07 % per cycle.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Hui Xiao,Xiaobing Huang,Yurong Ren,Haiyan Wang,Jianning Ding,Shibiao Zhou,Xiang Ding,Yuandao Chen
Na 3 V 2 (PO 4 ) 3 /nitrogen doped carbon (NVP/CN) composites have been fabricated by a simple and low cost solid-state technique using folic acid as the carbon-nitrogen source. The structure, morphology and electrochemical performance of NVP/CN composites coated with various carbon-nitrogen layer contents are well investigated. The results reveal that the NVP/CN composite with 3.3 wt% carbon-nitrogen exhibits the largest specific surface area, with a uniform carbon-nitrogen layer thickness of approximately 2 nm. When tested as cathode material for sodium ion battery , NVP/CN composite with 3.3 wt% carbon-nitrogen displays an outstanding high rate properties with the discharge capacity of 95 and 91 mAh g −1 at 10 and 20 C, respectively, and long cycle life up to 3000 times even at a high rate of 10 C due to the smallest charge-transfer resistance and highest Na + diffusion coefficient . The results suggest that folic acid is a promising carbon-nitrogen source for construction of NVP/CN and other cathode materials.
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DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2020
·
IF 3.104
Shirui Zhang,Dan Zhao,Shaojie Dai,Hongli Lou,Ruijuan Zhang
Langbeinite type compounds are a large kind of oxometallate with good flexibility structure. Herein, we synthesized a new langbeinite type compound K 2 Dy 1.5 Ta 0.5 (PO 4 ) 3 , in which the Dy 3+ and Ta 5+ were blended to occupy the same crystallographic sites. Simultaneously, solid solutions of K 2 Dy 1.5– x Eu x Ta 0.5 (PO 4 ) 3 ( x = 0–1.5) were prepared and their photoluminescence properties were investigated. Due to energy transfer from Dy 3+ to Eu 3+ , both Dy 3+ and Eu 3+ characteristic emissions are observed under 393 nm light excitation . The emitting color of K 2 Dy 1.5– x Eu x Ta 0.5 (PO 4 ) 3 turns from green through yellow to red by simply adjusting the Eu 3+ concentration from 0 to 0.4. Moreover, K 2 Dy 1.48 Eu 0.02 Ta 0.5 (PO 4 ) 3 phosphor possesses excellent fluorescence thermal stability and exhibits zero thermal quenching at 150 °C. These results manifest that K 2 Dy 1.5– x Eu x Ta 0.5 (PO 4 ) 3 solutions are promising multi-color emitting phosphors candidate for near-UV LED.
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DOI
高影响因子
MATERIALS LETTERS
·
2018
·
IF 2.687
Xi Cao,Yang Yang
NASICON-structured NaTi 2 (PO 4 ) 3 is regarded as the most suitable anode for aqueous sodium ion batteries, however, the low electronic conductivity intrinsically restricts its application. NaTi 2 (PO 4 ) 3 -carbon composite is prepared by a facile solid state sintering method and studied as the anode in aqueous sodium ion battery , coupling with activated carbon as the cathode. This neutral sodium ion battery shows a high output voltage of 1.17 V, with outstanding rate and cycling stability. The full cell delivers an energy density of 33.4 Wh∙kg −1 at a power density of 33.4 W∙kg −1 based on the total active mass of the anode and cathode materials.
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DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Xinze Wu,Hu Wang,Jiangchao Chen,Pengfei Pang,Haiping Li,Kunpeng Jiang,Yunyun Zhao,Wenping Liu,Guisheng Zhu,Huarui Xu
Dendrite growth and interfacial instability in conventional liquid electrolytes limit the practical application of lithium metal batteries (LMBs). Composite solid electrolytes (CSEs) offer a promising alternative, yet challenges remain in achieving high ionic conductivity and low interfacial resistance. In this study, a series of sponge-like porous Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 @PMMA/PVDF-HFP CSE membranes (LPPH1:x) were fabricated via phase separation-solution casting. A multistage ion transport channel was constructed through the synergistic combination of the polymer matrix, inorganic fillers, and liquid electrolytes. The incorporation of PMMA suppressed the crystallization of PVDF-HFP, while the ester groups in PMMA facilitated Li salt dissociation through coordination with Li + . LPPH1:3 exhibited optimal comprehensive performance: a high ionic conductivity of 2.75 × 10 −3 S·cm −1 at room temperature, a Li + transference number of 0.62, and an electrochemical stability window of 4.9 V. Moreover, the symmetric cell demonstrated stable cycling for over 2000 h at 0.2 mA·cm −2 . The LiFePO 4 full cell retained 96.4% capacity after 200 cycles at 0.5C. Post-cycling characterization confirmed that LPPH1:3 suppressed lithium dendrite growth and maintained a stable interfacial structure. This work provides an innovative material design strategy and theoretical foundation for developing high-performance solid-state LMBs.
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高影响因子
Materials Today Nano
·
2022
·
IF 13.364
Q. Sun,X. Chen,J. Xie,C. Huang,X. Xu,J. Tu,C. Shen,Y. Jin,K. Zhang,F. Chen,T. Zhu,X. Zhao,J. Cheng
Garnet-type Li 7 La 3 Zr 2 O 12 (LLZO) ceramics has been considered as an ideal solid-state electrolyte for Li metal cells because of its high ionic conductivity and relatively stable interface with Li. However, it is electrochemically incompatible with some high-voltage cathodes, e.g. LiCoO 2 . In this work, a nanoscale Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) fast ion conductor was coated on LiCoO 2 (only 1 wt% LATP), bringing obviously enhanced interfacial compatibility with a composite electrolyte composed of Al, Nb-codoped LLZO and polyethylene oxide (PEO). A free-standing, flexible and ultrathin (20 μm) electrolyte membrane was successfully fabricated by a facile and scalable route, even though with a high ceramics content (67 wt%). Quasi-solid-state coin and pouch-type Li cells were assembled with the LATP-coated LiCoO 2 cathode, free-standing composite electrolyte and Li anode, together with soft interface modification by in-situ polymerization. The cells show stable cycling due to combined factors of enhanced electrode/electrolyte compatibility, ultrathin nature of the electrolyte membrane and the in-situ built soft interface. The pouch cells can be cycled for 300 cycles at 0.3 C and 60 °C with 80% retention. The pouch cells can endure abuse tests of bending, cutting and nail penetration. At a practical LiCoO 2 loading of 3 mAh cm −2 , the Li|LiCoO 2 pouch cell still shows stable cycling with 90% retention after 100 cycles at 60 °C (0.2 C charge/0.5 C discharge). This work provides a practical method to fabricate high-performance solid-state Li cells.
研究领域:
材料科学
·
电化学
·
固态电池
·
能源材料
·
界面工程
·
纳米技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）