International Journal of Applied Ceramic Technology
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2022
·Vol. 20
·期 1
·321-328
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IF 2.328
Xing Xiang,Zecheng Fang,Xibei Wang,Zhenzhen Zhao,Haojun Zhang,Yu Zhang
Li 7 La 3 Zr 2 O 12 is a promising material used as solid electrolyte in all-solid-state lithium batteries. However, the lithium ionic conductivity of LLZO is limited, and the cycling stability of lithium symmetric battery based on LLZO is not good. In this research, different Ga-doped LLZO samples were prepared by adding different excess amounts of Li 2 O, and the effect of excess amount of Li 2 O on the structure and performance of LLZO have been researched. The results show that with the rise of the amount of Li 2 O, the lithium ionic concentration increases gradually, and the lithium ionic conductivity and the ratio of grain resistance to total resistance rise first and then drop. When the excess amount of Li 2 O is 10 wt.%, the sample exhibits the highest lithium ionic conductivity of 1.36 mS/cm, and the lithium symmetric battery exhibits the most stable operation.
研究领域:
材料科学
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电化学
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储能
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2023
·Vol. 34
·期 7
·1-13
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IF 2.8
Xiong Zhe,Zhang Xing,Wu Wenjuan,Li Lezhong,Tang Bin
The perovskite-structured CaTiO 3 -based microwave dielectric ceramics play an essential role in the technical field of communication. This study is intended to obtain a temperature-stable Ca-Li-Nd-Ti microwave dielectric ceramic and explore the changing mechanism of dielectric properties. So the (Ca 0.61 Nd 0.26 ) 1- x (Li 0.5 Nd 0.5 ) x Ti 0.96 (Al 0.5 Nb 0.5 ) 0.04 O 3 (0 ≤ x ≤ 0.8, shorted as CLNTAN) microwave dielectric ceramics were designed, prepared and characterized in this paper. All constituents form a single phase of orthorhombic perovskite. SEM images verify that the polygonal grains gradually become cubic morphology as the x value increases for CLNTAN samples. Raman spectra show a distinct blue shift of vibrational modes by increasing the x value, and the broadened Raman peaks indicate a declined tendency of Q × f value. Interestingly, the ε r values of samples reach the maximum at x = 0.7, then decrease as the x value increases. This finding is related to the bond valence at B-site. In addition, the τ f values of samples exhibit a decreased tendency, and the temperature-stable (τ f = –1.4 ppm/°C) CLNTAN ceramic with a high ε r value of 129.2 was obtained at x = 0.76 when it was sintered at 1230 °C.
研究领域:
材料科学
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通信技术
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
·
IF 9.9
Xin Dong,Ziqin Liu,Kaiquan He,Pu Hu,Chaoqun Shang
Li metal is a potential anode material for the next generation high-energy–density batteries because of its high theoretical specific capacity. However, the inhomogeneous lithium dendrite growth restrains corresponding electrochemical performance and brings safety concerns. In this contribution, the Li 3 Bi/Li 2 O/LiI fillers are generated by the in-situ reaction between Li and BiOI nanoflakes, which promises corresponding Li anodes (BiOI@Li) showing favorable electrochemical performance. This can be attributed to the bulk/liquid dual modulations: (1) The three-dimensional Bi-based framework in the bulk-phase lowers the local current density and accommodates the volume variation; (2) The LiI dispersed within Li metal is slowly released and dissolved into the electrolyte with the consumption of Li, which will form I − /I 3 − electron pair and further reactivate the inactive Li species. Specifically, the BiOI@Li//BiOI@Li symmetrical cell shows small overpotential and enhanced cycle stability over 600 h at 1 mA cm −2 . Matched with an S-based cathode, the full Li-S battery demonstrates desirable rate performance and cycling stability.
研究领域:
材料科学
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电化学
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能源存储
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纳米材料
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固态离子学
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DOI
高影响因子
Journal of Materiomics
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2019
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IF 0
En-Lai Zhao,Shi-Xi Zhao,Xia Wu,Jing-Wei Li,Lü-Qiang Yu,Ce-Wen Nan,Guozhong Cao
A series of 20Li 2 O-30V 2 O 5 -(50- x) SiO 2 - x B 2 O 3 (mol.%) ( x = 10, 20, 30, 40) glasses were prepared by the traditional melt-quenching synthesis. The amorphous nature of the glasses was determined by XRD, DSC and TEM investigations. FTIR measurement revealed the functional group of obtained glasses. And EDS results confirmed the presence and uniform distribution of elements in the glasses. 20Li 2 O-30V 2 O 5 -40SiO 2 -10B 2 O 3 (LVSB10) sample with the highest V 4+ ratio exhibited the best cycling capacity. In order to further improve cycling stability of LVSB10 sample, ball milling was employed to reduce the particle size. The ball milled LVSB10 sample (LVSB10-b) showed an improved first discharge capacity, cycling stability and rate capacity. EIS measurements showed that ball milling can effectively decrease charge transfer impedance and facilitate Li + ion diffusion. This work provides a new way to explore a new type of cathode materials for lithium ion batteries.
研究领域:
材料科学
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电化学
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DOI
APPLIED SURFACE SCIENCE
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2024
·
IF 6.3
Xintong Cao,Qiao Huang,Jiapeng Yang,Enrou Mei,Ye He,Xiaojuan Liang,Ruowang Liu,Weidong Xiang
All-inorganic CsPbX 3 (X=Cl, Br, I) perovskite quantum dots (QDs) have garnered extensive attention due to excellent optical properties. However, practical applications have been hampered by their instability. Dense amorphous glass protected CsPbX 3 perovskite QDs with excellent long-term stability are ideal conditions for developing high-quality liquid crystal displays (LCD). In this paper, CsPbBrI 2 QDs are precipitated in a novel aluminosilicate glass matrix. This work shows that the network structure of aluminosilicate glass is “modified” by Li 2 O. As the Li 2 O content increases, the glass network structure can be connected into a more aggregation state. This modification of Li 2 O increased the photoluminescence quantum yield (PLQY) of CsPbBrI 2 @glass (CPBI@G) from 22 % to 86 %. Surprisingly, CPBI@G exhibits excellent long-term stability against water, heat, and light. The specially designed CsPbX 3 @glass@PET light conversion film achieves a wide-color-gamut of 123.7 % of the NTSC 1953 standard. The film displays colors richer than commercial displays, paving the way for the commercial use of the CPBI@G nanocomposite in backlight displays.
研究领域:
材料科学
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光学工程
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显示技术
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产品关联
DOI
高影响因子
ACS Applied Energy Materials
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2026
·
IF 5.5
Xue-Qing Zhan,Jia-Min Xu,Xiaoge Wang,Xiaohui Li,Jing Ju,Qin Ye,Yi-Jie Zhang,Fang-Chang Tsai,Ning Ma
Conventional ceramics often require energy-intensive, high-temperature processing, which constrains their sustainability. Herein, we report an ionic melt-induced liquid-phase-assisted process to synthesize ZrO2–Y2O3–SiO2–Li2O glass-ceramics, reducing typical processing temperatures by ∼400 °C without cold isostatic pressing. By leveraging ZrO2–Y2O3 as the primary network former and SiO2–Li2O as an ionic flux, we achieve tailored glass transition (Tg = 866 °C) and crystallization (Tc = 1066 °C) temperatures. This enables low-temperature crystallization while enhancing the ionic conductivity. Phase analysis confirms coexisting tetragonal and monoclinic ZrO2, Li2SiO3, and residual SiO2–Li2O glass, with minimal nonbridging oxygen content contributing to optimized mechanical properties. The optimal composition (ZrO2–Y2O3:SiO2–Li2O = 1:1.14, molar ratio) delivers exceptional Vickers hardness (8.25 GPa), Young’s modulus (109.2 GPa), and ionic conductivity. This work outlines a sustainable pathway for the development of advanced glass-ceramics and solid electrolytes with potential implications for structural materials, functional devices, and solid-state batteries.
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
·
IF 19.9
Yu Yan,Jingzhao Chen,Jinyang Li,Yiwei Cai,Xiaoyan Zhang,Ziqiang Niu,Yuwen Liu,Feng Huo,Suojiang Zhang
The prevailing view in lithium-metal batteries (LMBs) regards LiF-rich solid electrolyte interphases (SEIs) as essential for interfacial stability, making fluorinated electrolytes the default choice. This consensus relies mainly on empirical performance rather than quantitative decoupling of individual inorganic components. Here, we isolate LiF, Li 2 CO 3 , and Li 2 O monocomponent SEIs and quantify key descriptors, including exchange current density, ionic/electronic conductivities, activation energies, and mechanical strength. We observe pronounced functional asymmetry: no single component satisfies all demands. Using power-law composition–property mapping and weighted multi-objective optimization, we establish a predictive framework for SEI design. Surprisingly, the model predicts an optimal composition dominated by Li 2 O with a minor Li 2 CO 3 fraction (Li 2 CO 3 /Li 2 O = 0.1428/0.8572), excluding LiF. A symmetric cell with this optimized SEI cycles stably for over 2400 h at 0.5 mA cm −2 . In Li||LFP full cells, 49% of the initial capacity (105 mAh g −1 ) is retained after 900 cycles at 4 C, outperforming all monocomponent SEIs. In LiF-free cells using a non-fluorinated electrolyte, the optimized SEI delivers improved performance. These results show that the “LiF considered a key component for stable SEI” paradigm fails when SEI is deconvoluted into quantifiable physicochemical parameters. Interfacial stability arises from multi-parameter synergy rather than single-component preference.
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高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2022
·
IF 4.778
Tianxiang Ning,Qian Zhang,Piao Liu,Xiangtao Lin,Yinyi Luo,Lidan Liu,Zhiwei Luo,Anxian Lu
In this study, Li 2 O–Ga 2 O 3 -GeO 2 -Gd 2 O 3 (LGGG) glass is doped into Li 7 La 3 Zr 2 O 12 (LLZO) ceramic in proportions of 1, 2, 3, 4, and 5 wt% by a conventional solid-state reaction method. The main crystalline phase that existed in this composite electrolyte is proved to be cubic phase LLZO by XRD patterns. With a dosage of 3 wt% LGGG glass, the composite electrolyte has the highest ionic conductivity of 3.26 × 10 −4 S cm −1 , a maximum relative density of about 96.79%, and minimum activation energy of 0.276 eV at room temperature. This work also verifies that doping the same amount of identified elements into LLZO ceramics in the form of glass can obtain higher ionic conductivity and relative density than in the form of oxides (2.40 × 10 −4 S cm −1 and 92.03%). A symmetric cell composed of this electrolyte reveals a good cycling performance and low overpotential in a total of 230 cycles at a current density of 0.125 mA cm −2 . These results confirm the potential of this LGGG-LLZO composite electrolyte for applicating in new generation all-solid-state lithium-ion batteries.
研究领域:
材料科学
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能源存储与转换
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Jinhong Song,Chen Zhang,Zejian Zheng,Shizhe Huo,Yihan Lin,Fei Yang,Lei Liu
SnO 2 layer between Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) and lithium anode was prepared through simple scratch-coating process to improve interface properties. The physical phase, morphology, and electrochemical properties of Li/SnO 2 /LAGP structure were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical analytical methods. It was found that SnO 2 layer effectively improved the interface stability of LAGP and lithium anode. The prepared Li/SnO 2 /LAGP/SnO 2 /Li symmetric cell exhibited a large critical current density of 1.8 mA cm −2 and demonstrated excellent cycling characteristics. The polarization voltages of symmetric cell were 0.1 V and 0.8 V after 1000 h of cycling at current densities of 0.04 mA cm −2 and 0.5 mA cm −2 , respectively. Li/SnO 2 @LAGP/LiFePO 4 solid-state full cells were also assembled, exhibiting a discharge specific capacity of 150 mAh g −1 after 200 cycles at 0.1C with capacity retention rate of 96 %. The good interface properties of Li/SnO 2 /LAGP structure are attributed to the transformation of SnO 2 layer into a buffer layer containing Li 2 O, Sn 0 , and Li x Sn y alloy during cycling process, which effectively inhibits the reduction reaction between LAGP and lithium anode.
研究领域:
材料科学
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电化学
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能源存储
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DOI
高影响因子
ChemSusChem
·
2019
·Vol. 12
·期 14
·3377-3382
·
IF 7.804
Rusheng Fu,Yongkang Wu,Chongzhao Fan,Zuxin Long,Guangjie Shao,Zhaoping Liu
Graphical Breaking the ICE : The SiO anode in Li-ion batteries has low initial coulombic efficiency (ICE) because of the irreversible formation of Li 2 O and lithium silicates. Sn-mixed SiO shows great promise to address these issues by reactivating Li 2 O, in the inverse reaction to that occurring at the metal oxide anodes. Sn is shown to form an outstanding conductive phase, which boosts the reaction kinetics and also reactivates Li 2 O. The application of SiO anodes in Li-ion batteries is greatly restricted by its low initial coulombic efficiency (ICE). Usually, a pre-lithiation procedure is necessary to improve the ICE, but the available technologies are associated with safety issues. Metal (M)-mixed SiO shows great promise to address these issues by reactivating Li 2 O through the reaction M+Li 2 O→MO x +Li + , which is the inverse reaction to that occurring at MO x anodes. Sn is found to be a good choice of metal for this concept. Nanoscale Sn-mixed SiO composites are prepared by mechanical milling. Sn forms an outstanding conductive phase, which boosts the reaction kinetics and also reactivates the Li 2 O byproduct. Sn/SiO (1:2 w/w) delivers a significant improvement in ICE from 66.5 % to 85.5 %. A higher ICE value of >90 % is obtained when the Sn content is ≥50 wt %. However, additional electrolyte decomposition occurs, which is catalyzed by Sn. In addition, coarsening of the nano-Sn material reduces the inverse conversion reactivity of Sn/Li 2 O and subsequently results in rapid capacity fading. The quantitative analysis indicates that, in contrast to transition metals, the alloying and dealloying nature of Sn gives a 50 % improvement in reversible capacity, attributed to Sn/Li 2 O. This work gives a general strategy to choose metals for increasing the ICE of SiO x and metal oxides.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2023
·
IF 8.6
Kai Zhang,Pan Xue,Jianghua Wu,Liyun Wu,Nanyang Wang,Tao Xu,Kaiping Zhu,Jun Pu,Qiulong Li,Yu Deng,Yagang Yao,Jin Zhang
Compared to other synthetic methods, the synthesis of boron nitride nanotubes (BNNTs) by the boron oxide chemical vapor deposition (BOCVD) method can balance the purity and quality of the product nanotubes. However, due to the solid reaction characteristics of boron monomers, the closed reaction system, and the synthesis temperature of over 1000 °C, growth studies of BNNTs have been in a dilemma. To this end, simultaneous thermal analysis combined with multi-atmosphere annealing experiments at corresponding temperatures is used to study the inorganic solid-state reaction of the classical BOCVD precursor B/Li2O in real time and confirmed by experimental results that lithium borate is the actual active component and catalyst. Further experiments reveal that the growth process of BNNTs and lithium borate not only consumes less of the precursor and ammonia but is also flexible in its configuration, showing exceptional efficiency and reactivity. Lastly, experiments have shown that the structure and activity of borate are equally applicable to alkali metals, alkaline earth metal, and transition metals.
研究领域:
材料科学
·
化学
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产品关联
DOI
高影响因子
Functional Materials Letters
·
2019
·
IF 1.388
Jingwei Li,Shixi Zhao,Xia Wu,Lüqiang Yu,Enlai Zhao,Cewen Nan
A series of glass cathode materials x Li 2 O–50V 2 O 5 –(50− x )P 2 O 5 ( x = 2 0 , 25, 30, 35 and 40) have been synthesized by a simple melting–quenching method. 30Li 2 O–50V 2 O 5 –20P 2 O 5 glass (LVP30) shows the best cycling performance with a preferable capacity retention after 50 cycles. Then, we prepared a series of carbon-coated LVP30 glass-ceramic cathode materials by carbon coating and heat treatment. The carbon-coated LVP30 samples consist of the crystalline phase V 2 O 3 , VO 2 and Li 2 O–V 2 O 5 –P 2 O 5 glass. Among the carbon-coated LVP30 samples, LVP30-15C sample exhibits the best cycling and rate performance. It can retain a discharge capacity of 140 mAh ⋅ g − 1 after 100 cycles. This unique glass-ceramic structure can result in good conductivity and structural ductility.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）