Nature Communications
·
2024
·Vol. 15
·期 1
·1-14
·
IF 14.7
Ji Weijie,Luo Bi,Wang Qi,Yu Guihui,Zhang Zixun,Tian Yi,Zhao Zaowen,Zhao Ruirui,Wang Shubin,Wang Xiaowei,Zhang Bao,Zhang Jiafeng,Sang Zhiyuan,Liang Ji
Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a lithium metal negative electrode. However, fabricating a thin lithium electrode faces significant challenges due to the fragility and high viscosity of Li metal. Herein, through facile treatment of Ta-doped Li 7 La 3 Zr 2 O 12 (LLZTO) with trifluoromethanesulfonic acid, its surface Li 2 CO 3 species is converted into a lithiophilic layer with LiCF 3 SO 3 and LiF components. It enables the thickness control of Li metal negative electrodes, ranging from 0.78 μm to 30 μm. Quasi-solid-state lithium-metal battery with an optimized 7.54 μm-thick lithium metal negative electrode, a commercial LiNi 0.83 Co 0.11 Mn 0.06 O 2 positive electrode, and a negative/positive electrode capacity ratio of 1.1 shows a 500 cycles lifespan with a final discharge specific capacity of 99 mAh g −1 at 2.35 mA cm −2 and 25 °C. Through multi-scale characterizations of the thin lithium negative electrode, we clarify the multi-dimensional compositional evolution and failure mechanisms of lithium-deficient and -rich regions (0.78 μm and 7.54 μm), on its surface, inside it, or at the Li/LLZTO interface.
研究领域:
材料科学
·
电化学
·
电池技术
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固态电解质
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DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Jingtong Xia,Yanxia Zhang,Tao Wang,Jiaying Ran,Hongli Li,Lei Zhou,Qiaosheng Pu
Abnormal glucose metabolism has been identified as a key characteristic of tumorigenesis. Visualizing the levels of monosaccharides in the lesion tissues and bodies of cancer patients is conducive to uncovering patterns of glucose metabolic reprogramming and assisting in the early diagnosis of cancer. Consequently, based on 7-(diethylamino)coumarin-3-carbohydrazide (DCCH), which has mass spectrometry/optical dual-signal enhancement functionality, both an on-tissue derivatization strategy suitable for matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) analysis and an in-solution derivatization strategy for capillary electrophoresis/laser-induced fluorescence (CE-LIF) analysis have been developed. During the on-tissue derivatization reaction, the nonvolatile MALDI matrix, 2,5-dihydroxybenzoic acid, was innovatively adopted as a proton donor. This approach not only efficiently catalyzes the derivatization process but also significantly minimizes analyte redistribution, and a low-cost airbrush application can achieve satisfying in situ derivatization. For further addressing the issue of the coexistence of multiple conformational isomers in biosamples, a rapid and efficient CE-LIF method was proposed for the separation of five DCCH-labeled monosaccharides (including three conformational isomers) within 8 min. By focusing on endometrial cancer (EC), the synergy of DCCH-mediated MALDI-MSI and CE-LIF analysis successfully achieved high-resolution in situ visualization of an obvious depletion difference in monosaccharides across the focal areas (tumor tissues, peritumoral tissues, and paracancerous tissues), and a comparative analysis was conducted on the serum monosaccharide profiles between patients with EC and those with benign uterine diseases. These analyses yielded novel molecular-level evidence, thereby facilitating a deeper understanding of the monosaccharide metabolic abnormalities associated with EC.
研究领域:
癌症代谢
·
分析化学
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分子成像
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临床诊断
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糖组学
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质谱分析
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电泳技术
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产品关联
DOI
PubMed
高影响因子
Small
·
2026
·
IF 11.8
Chenlu Xu,Tengtao Hu,Xiang Yan,Binyu Lu,Tiansheng Chen,Yang Xia,Jun Zhang,Xinhui Xia,Wenkui Zhang,Yongping Gan,Ruyi Fang,Min Fan,Xinping He,Xinyong Tao,Hui Huang
In situ polymerized gel polymer electrolytes (GPEs) offer a promising strategy for lithium metal batteries, as they combine high ionic conductivity of liquid electrolytes with good mechanical stability of solid electrolytes. However, the composition evolution of GPEs with the resting period and the subsequent formation of solid electrolyte interphase (SEI) remains poorly understood. Herein, the influence of the resting time on the mechanical properties, lithium-ion transport kinetics, and SEI stability of GPEs is systematically investigated. By optimizing the resting time, the premature decomposition of fluorinated additives is revealed to be suppressed, and interfacial reactions are steered toward the formation of a robust SEI rich in LiF. The as-formed GPEs exhibit a high ionic conductivity of 1.96 × 10 −3 S cm −1 and a Li + transfer number of 0.67 at 30°C. As a result, Li||Li symmetric cells achieve stable cycling for over 2600 h, while LiFePO 4 ||Li full cells retain 94.68% of initial capacity after 1000 cycles at 1 C. This work elucidates the role of the resting time in modulating electrolyte chemical composition and SEI formation, providing a practical approach from a new perspective for developing long-life quasi-solid-state lithium metal batteries.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 15
·118606
·
IF 6.3
Wei Shi,Shangyi Guan,Zhi Tan,Qi Hu,Jie Xing,Fengzhang Tang,Wei You,Yun Chen,Qiang Chen
Enhancing the Curie temperature ( T C ) in bismuth titanate (Bi 4 Ti 3 O 12 , BIT) based ceramics while maintaining robust piezoelectricity remains a longstanding challenge for high-temperature applications. Here, we demonstrate that trace LiF addition provides an effective route to simultaneously increase the T C by 30 °C and thermal stability of BIT-based piezoceramics. The optimized composition exhibits an ultrahigh T C of about 690 °C, a competitive piezoelectric coefficient ( d 33 ) of 34.5 pC/N and an outstanding resistivity of 2.6 × 10 7 Ω⋅cm at 500 °C. More importantly, over 88% of the initial d 33 is retained after annealing at 650 °C for 2 h. LiF addition induces a slight reduction in piezoelectric activity, and the accompanying reduced switching current and increased coercive field collectively indicate defect-mediated domain-wall pinning. Chemical etching and piezoresponse force microscopy further reveal that LiF addition alters domain configurations and suppresses domain-wall mobility, thereby stabilizing the poled state at elevated temperatures. These results provide a practical design route for high-temperature piezoceramics.
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Puyan Huang,Xiao Wang,Jian Guo,Yu Ding,Guorong Chen,Jifang Fu,Liyi Shi,Alena A. Nevar,Le Yu
Solid polymer electrolytes (SPEs) with high ionic conductivity, high lithium-ion transference number (t Li + ), and good mechanical properties are highly desired for solid-state lithium metal batteries. However, developing SPEs with both high ionic conductivity and high t Li + remains a challenge. Herein, a novel network structure single-ion polymer electrolyte (SIPU) with high ionic conductivity (0.12 mS cm −1 ), t Li + (0.71) and mechanical strength (1.5 MPa) was prepared by UV-initiated free radical polymerization and chemically crosslinking of the functional groups. The characterization and Density functional theory (DFT) calculation demonstrate that the construction of a cross-linked network structure not only endows the electrolytes membranes with improved mechanical strength to inhibit dendrite growth but also facilitates fast dissociation of Li + for boosting ionic kinetics. More importantly, a robust LiF-rich Solid Electrolyte Interface (SEI) was formed on the Lithium metal anode, enhancing the cycling performance of batteries. As a result, the Li symmetric cells using the SIPU electrolytes can stably cycle over 2000 h. The Li/SIPU/LiFePO 4 cells deliver excellent cycle performance and maintain stably cycling over 1000 cycles at 0.5C. The Li/SIPU/LiNi 0.8 Co 0.1 Mn 0.1 O 2 cells also have excellent cycling and rate performance. Furthermore, the Li/SIPU/LiFePO 4 pouch cells exhibit excellent performance. This work provides valuable insights into the rational design of polymer electrolytes with mechanical and electrochemical stability.
研究领域:
材料科学
·
高分子化学
·
电化学
·
储能
·
固态电池
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产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Zhendong Li,Liyuan Huai,Shun Li,Mingming Ma,Kailin Luo,Yang Zhao,Deyu Wang,Xueliang Sun,Zhe Peng
Cycling lithium (Li) metal anode with a low negative/positive capacity (N/P) ratio is critical to build high-energy-density Li metal batteries (LMBs). Many strategies focusing on interfacial protection are limited to shallow conditions using excessive Li with a high negative/positive capacity (N/P) ratio > 50. Herein, we demonstrate a deeply enhanced charge transfer kinetic by a rational incorporation of nickel (Ni) seeds in the Li anodes with a tailored interfacial chemistry. The Ni seeds in the bulk Li anode not only act as well-dispersed nucleation sites to enable Ni-seeded growth of granular Li deposits, but also adsorb acetonitrile (AN) molecules when the Ni-seeded Li anodes are paired with an AN-based electrolyte using lithium bis-(fluorosulfonyl)imide as salt, forming a fast Li + conducting interphase with co-produced LiF, Li 3 N and Li 2 S components. These benefits conduct an exchange current density ~ 20 times higher than that of the bare Li in conventional carbonate electrolytes. Stable cycling of LMBs with a practical cathode loading (~ 5 mAh cm −2 ) and a low N/P capacity ratio of 2 is also demonstrated, showing the prominence of this remedy for developing high-energy-density LMBs.
研究领域:
材料科学
·
电化学
·
能源存储
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2018
·Vol. 28
·期 13
·1706513
·
IF 13.325
Xuyan Ni,Tao Qian,Xuejun Liu,Na Xu,Jie Liu,Chenglin Yan
The “shuttle effect” that stems from the dissolution of polysulfides is the most fatal issue affecting the cycle life of lithium-sulfur (Li–S) batteries. In order to suppress the “shuttle effect,” a new strategy of using a highly lithium ion conductive lithium fluoride/graphene oxide (LiF/GO) solid electrolyte interphase (SEI) to mechanically prevent the lithium dendrite breakthrough is reported. When utilized in Li–S batteries, the LiF/GO SEI coated separator demonstrates significant feature in mitigating the polysulfide shuttling as observed by in situ UV–vis spectroscopy. Moreover, the restrained “shuttle effect” can also be confirmed by analysis of electrochemical impedance spectroscopy and characterization of lithium dendrites, which indicates that no insulating layer of solid Li 2 S 2 /Li 2 S is found on lithium anode surface. Furthermore, the LiF/GO SEI layer puts out good lithium ion conductivity as its lithium ion diffusion coefficient reaches a high value of 1.5 × 10 −7 cm 2 s −1 . These features enable a remarkable cyclic property of 0.043% of capacity decay per cycle during 400 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Natural Medicines
·
2023
·
IF 3.3
He Dongjie,Song Yanli,Xiao Huidongzi,Shi Shaoqi,Song Hongyan,Cui Tianwei,Ni Tingting,Wang Jing,Ren Xingxing,Wei Aiwu
Ligustilide (LIG) is the main active ingredient of Angelica sinensis (Oliv.) Diels, which could promote focal angiogenesis to exert neuroprotection. However, there was no report that verified the exact effects of LIG on endometrial angiogenesis and the pregnancy outcomes. To explore the effects of LIG on low endometrial receptivity (LER) and angiogenesis, pregnancy rats were assigned into Control (saline treatment), LER (hydroxyurea-adrenaline treatment), LIG 20 mg/kg and LIG 40 mg/kg groups. Hematoxylin and eosin (H&E) staining was performed to evaluate endometrial morphology. Quantitative real-time PCR, immunofluorescence staining, western blot and immunohistochemistry staining were employed to assess the expression of endometrial receptivity factors and angiogenesis-related gene/protein, respectively. RNA sequencing was used to analyze the effects of LIG on LER caused by Kidney deficiency and blood stasis. We found that endometrial thickness and the implanted embryo number were substantially reduced in the hydroxyurea-adrenaline-treated pregnancy rats. At the same time, the gene and protein expressions of ERα, LIF, VEGFA and CD31 in the endometrium were markedly reduced, while the expressions of MUC1, E-cadherin were increased in the LER group. Administration of LIG raised the endometrial thickness and implanted embryos, as well as reversed the expressions of these factors. Collectively, our findings revealed that LIG could facilitate embryo implantation via recovery of the endometrium receptivity and promotion of endometrial angiogenesis.
研究领域:
药理学
·
生殖生物学
·
分子生物学
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产品关联
DOI
PubMed
高影响因子
SOLID STATE PHENOMENA
·
2018
·
IF 0
Nan Lu,Jia Xi Liu,Gang He,Jiang Tao Li
MgO/Graphene ceramic composites were fabricated by combining combustion synthesis with spark plasma sintering. MgO/Graphene mixture powders were prepared by the combustion reaction between Mg powders and CO2 gas. Dense MgO/Graphene composites were fabricated by spark plasma sintering (SPS) using LiF as the sintering additive. The effect of the sintering temperature on microstructure and mechanical properties of the prepared MgO/Graphene ceramics was discussed. The sintering temperature of the MgO/Graphene mixture powders increased from 900°C to 1300°C. The highest density of 3.43g/cm3 and hardness of 2133MPa were obtained at 1100°C. Compared with monolithic MgO ceramics, the hardness of MgO/Graphene ceramics at the same sintering temperature was increased from 840MPa to 2133MPa.
研究领域:
材料科学
·
陶瓷工程
·
复合材料
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产品关联
DOI
Journal of Energy Chemistry
·
2021
·
IF 9.676
Liansheng Li,Yuanfu Deng,Huanhuan Duan,Yunxian Qian,Guohua Chen
Solid electrolytes with desirable properties such as high ionic conductivity, wide electrochemical stable window, and suitable mechanical strength, and stable electrode–electrolyte interfaces on both cathode and anode side are essential for high-voltage all-solid-state lithium batteries (ASSLBs) to achieve excellent cycle stability. In this work, a novel strategy of using LiF and LiNO 3 as synergistic additives to boost the performance of PEO-PVDF/LLZTO-based composite solid electrolytes (CSEs) is developed, which also promotes the assembled high-voltage ASSLBs with dual-interfaces stability characteristic. Specifically, LiF as an inactive additive can increase the electrochemical stability of the CSE under high cut-off voltage, and improve the high-voltage compatibility between cathode and CSE, thus leading to a stable cathode/CSE interface. LiNO 3 as an active additive can lead to an enhanced ionic conductivity of CSE due to the increased free-mobile Li + and ensure a stable CSE/Li interface by forming stable solid electrolyte interphase (SEI) on Li anode surface. Benefiting from the improved performance of CSE and stable dual-interfaces, the assembled NCM622/9[PEO 15 -LiTFSI]-PVDF-15LLZTO-2LiF-3LiNO 3 /Li cell delivers a high rate capacity of 102.1 mAh g −1 at 1.0 C and a high capacity retention of 77.4% after 200 cycles at 0.5 C, which are much higher than those of the ASSLB assembled with additive-free CSE, with only 60.0 mAh g −1 and 52.0%, respectively. Furthermore, novel cycle test modes of resting for 5 h at different charge states after every 5 cycles are designed to investigate the high-voltage compatibility between cathode and CSE, and the results suggest that LiF additive can actually improve the high-voltage compatibility of cathode and CSE. All the obtained results confirm that the strategy of using synergistic additives in CSE is an effective way to achieve high-voltage ASSLBs with dual-interfaces stability.
研究领域:
材料科学
·
电化学
·
能源存储
·
固态电池
·
界面化学
·
高分子科学
·
无机非金属材料
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·Vol. 47
·期 16
·22776-22785
·
IF 4.527
Kaidan Wu,Yefeng Feng,Jin Ke,Bingwen Yang,Zhiling Guo,Deping Xiong,Miao He
Graphite nanosheets coated by LiF/SnO 2 composites are designed to obtain a lithium ion anode material with excellent performance. LiF nanoparticles play a significant role in improving the electrochemical performance by inhibiting electrolyte decomposition and providing excess Li sources during cycling. The obtained LiF@SnO 2 @C electrode shows an outstanding capacity of 951.9 mAhg −1 at 0.2 Ag -1 after 370 cycles and excellent long cycling performance of 650.0 mAhg −1 at 1.0 Ag -1 after 930 cycles. First-principles calculations demonstrate that F-doped SnO 2 (−2211.8 eV) has a lower free energy compared to SnO 2 (−1937.4 eV), resulting in a robust composite architecture that gives rise to high cycling stability.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
计算材料学
✓ 已验证
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2026
·
IF 3.3
Wenjun Liang,Xiaoli Li,Tao Wu,Jichao Bu,Yumiao Wang,Li Guo,Bin Leng,Litao Chang
The combined effects of high-temperature creep and molten salt corrosion present critical challenges for structural materials in molten salt reactors (MSRs). In the present study, the influence of surface preparation on the crack initiation behavior of Ni-based alloy GH3535 under simultaneous creep deformation and molten salt corrosion was investigated. Specimens with three different surface conditions were prepared and tested in molten LiF–NaF–KF salt at 700 °C under identical constant stress. The post-test specimens were then examined using multi-scale techniques. The results show that extensive intergranular cracking occurred in the as-machined specimen. Removing the machined layer by grinding and polishing produced specimens with relatively uniform microstructure, which suppressed subsurface crack nucleation but promoted the initiation of shallow intergranular cracks from the surface. In the high temperature annealed specimen, the machined layer was eliminated due to recrystallization. The annealing process suppressed subsurface creep crack initiation but promoted localized intergranular corrosion, leading to the detachment of recrystallized grains from the surface and subsequent surface driven cracking. These findings demonstrate that the near surface microstructure critically governs the synergy between corrosion and crack initiation of the alloy GH3535 in molten salt. While removing the machining induced zone avoids subsurface cracking, it may increase the susceptibility to intergranular corrosion and surface crack initiation, thereby providing essential guidance for surface state optimization strategies for materials in MSR applications.
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DOI
高影响因子
危险品化学品经营许可证（带存储）