JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Muhammad Irfan,Yuli Zang,Zeheng Yang,Weixin Zhang
Rechargeable solid-state lithium metal battery (LMB) is an important next-generation energy storage technology . Anion chemistry of sulfonates plays a vital role in dictating the electrochemical performance of conducting solid polymer electrolytes (CSPEs). CSPE is a crucial need for LMB, although, simultaneously achieving high ionic conductivity and greater cycling performance in LMBs is a huge challenge. Herein, we design and synthesize new sulfonate anions 2-((8-hydroxyoctyl)oxy)ethyl-sulfanetrione (HOEST) and 2-(4-hydroxybutaoxy)ethane-sulfonate (HBES), and a series of CSPEs via coupling of these anions by tetraethyl orthosilicate for LMBs. HOEST-V CSPE consists of HOEST with PVDF polymeric matrix that delivers higher ionic conductivity (3.17 × 10 −3 S cm −1 ) and outstanding cyclability (152 mAh g −1 ) at 25 °C for 1100 cycles. The excellent stability over 500 h of Li stripping/plating, high apparent diffusion coefficient (0.07177), and low activation energy (5.0251 Kj/mol) of HOEST-V impede the lithium dendritic growth for good compatibility with electrodes. The hydrophobic alkyl spacer of HOEST-V with anionic species and hydroxyl wing associated with ether spacer can dissociate and augment the Li + ions mobility resulting from their intramolecular and intermolecular interactions , hydrogen bonding , and ion-dipole interaction. This strategy is promising and opens a new avenue for developing safe and high-performance CSPEs in future.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yunlong Zhang,Muhammad Irfan,Zeheng Yang,Kun Liu,Jianhui Su,Weixin Zhang
Anion chemistry of sulfonates plays a crucial role in dictating the electrochemical performance of composite solid polymer electrolytes (CSPEs), hence affecting the cyclability of lithium-ion batteries (LIBs). The CSPEs received great attention for LIBs, however, simultaneously achieving high ionic conductivity and long cycle life in realistic batteries is still a great challenge. Herein, we report new sulfonate anion with hydrophilic aromatic structure and ether alkyl spacer of hydroxyl wing namely lithium hydroxyphenyl propanesulfonate (LHPS), and a series of CSPEs obtained by coupling of the synthesized anions via tetraethyl orthosilicate to be used in LIBs. The CSPEs comprising LHPS achieve higher ionic conductivity and excellent cyclability with impressive stability due to their decent compatibility of hydroxyl wing, and aliphatic ether spacer with the polymeric matrix. The intramolecular and intermolecular interactions of LHPS with other precursors within anion-polymer matrices via hydrogen bonding reduce anionic species migration, thus augmenting Li + ion conduction and impeding lithium dendritic growth during the electrochemical performance. This opens a new avenue for designing conductive and long cycle life CSPEs for LIBs in the future.
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高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Jiabin Fang,Jianguo Li,Lijun Qin,Aidong Li,Hao Feng
Silicon-based materials are of long-standing interest as the anodes for next-generation lithium-ion batteries, yet their low initial Coulombic efficiency and poor interfacial stability are lethal limitations. In this work, we used atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques to fabricate a lithium-containing laminated Li2O–lithicone hybrid film (∼5 nm) on a silicon electrode. The laminated film provides an additional surface Li source around silicon cores, which can partially reimburse the Li loss during battery cycling. Characterization of interfacial components shows that such a laminated Li2O–lithicone interface undergoes gentle element changes and participates in a hybrid solid electrolyte interphase with Li2CO3, Li2O, LixPOFy, and LiF species. Finite element model analysis and morphology characterization demonstrate that the laminated structure design can help relieve the interfacial stress and thus retain the integrity and reactivity of the silicon composite anode during cycling. Moreover, the lithium-based laminated film leads to a fast Li+ migration kinetics on the surface of the electrode as revealed by the galvanostatic intermittent titration technique and density functional theory calculation. Benefiting from the above merits, a silicon anode with a 91.2% initial Coulombic efficiency, a rate performance of 1460 mA h g–1 at 2 A g–1, and a reversible capacity over 646 mA h g–1 after 850 cycles was achieved. This work exemplifies the advantages of lithium-based hybrid films precisely engineered by ALD/MLD techniques for improving performances of advanced silicon anode batteries and deepens understandings on the mechanism of interfacial stability and reaction kinetics.
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
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IF 7.632
Zifeng Yang,Lei Liu,Hongzhe An,Chenhao Li,Zhencai Zhang,Wenjuan Fang,Fei Xu,Suojiang Zhang
Green synthesis of poly(isosorbide carbonate) (PIC) with remarkable properties is a huge challenge in industrial applications due to low molecular weight and harsh reaction conditions. We reported a novel pathway to synthesize high molecular weight PIC through melt polymerization of isosorbide (ISB) and dimethyl carbonate (DMC), which are derived from the biomass and CO2, respectively. The effects of metal ion-containing compound catalyst on chemical structures, terminal groups, and molecular weight of PIC in the process of melt polycondensation were studied. Compared with the best reported catalyst lithium acetylacetonate, the weight-average molecular weight (Mw) of PIC was increased by using our preferred catalyst sodium tert-butoxide from 46 500 to 55 100 with the ISB conversion up to 99.0%, and the reaction time was decreased from 12 h to only 2.5 h, as far as we know, which is the highest Mw value and the most efficient catalyst achieved by one-step method. According to the results of the experiment and simulation, we found that high catalytic performance was ascribed to the weak interaction energy of anion–cation of catalyst and the strong proton acceptance ability of the anion of the catalyst. Meanwhile, increasing the interaction energy of anion–cation of the catalyst could inhibit the occurrence of the methylation side reaction and interestingly the activated endohydroxyl groups of ISB were found to be more easily methylated. Finally, based on the captured and detected intermediates of the two-stages of the reaction, a possible mechanim for the synergetic effects of cation–anion through hydrogen bond formation was proposed.
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高影响因子
Journal of Materials Chemistry A
·
2014
·Vol. 2
·期 33
·13277-13282
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IF 0
Ru-Jun Chen,Mian Huang,Wen-Ze Huang,Yang Shen,Yuan-Hua Lin,Ce-Wen Nan
Li–La–Zr–O thin films were successfully fabricated using a sol–gel spin coating method, and the effects of altering the annealing temperature and the number of layers of the films on electrolyte conductivity were studied. Using X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy, the characteristics of these films were investigated as a function of annealing temperature and the numbers of layers of the film. With these methods, an amorphous structure and a smooth surface on the films were revealed. The thin film's ionic conductivity was investigated by impedance analysis. The results show that the ionic conductivity of the films decreases with an increase of the annealing temperature, from 1.67 × 10−6 S cm−1 for 600 °C annealing to 8.53 × 10−7 S cm−1 for 800 °C annealing. The influence of film thickness on conductivity was investigated and the conductivity followed an inverse u-shaped curve with increasing film thickness. We propose that Li–La–Zr–O thin films may be promising solid electrolytes for solid-state lithium-ion batteries.
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CERAMICS INTERNATIONAL
·
2017
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IF 2.986
Ru-Jun Chen,Yi-Bo Zhang,Ting Liu,Bing-Qing Xu,Yang Shen,Yuan-Hua Lin,Ce-Wen Nan
Li–La–Zr–O thin films were successfully fabricated using the sol-gel spin coating method and the effects of the addition of surfactant in the solution were studied. X-ray diffraction, scanning electron microscopy and Atomic Force Microscope were used to investigate the characteristics of these films and an amorphous structure and smooth surface on the films were revealed. The ionic conductivity of the film was investigated by impedance analysis. The results showed that the room-temperature ionic conductivity of the film increases with the content of surfactant, from 1.8 × 10 −6 S/cm for 0.5 wt% to 3.9 × 10 −6 S/cm for 1.5 wt%. However, further increasing the content of surfactant can deteriorate the property of the thin film on the contrary. The improvement of the property can be attributed to the improvement of the morphology of the film. We propose that this Li–La–Zr–O thin film is a promising solid electrolyte for thin-film lithium-ion batteries.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Ping Sun,Li Huang,Zimu Li,Yao Yang,Shiman Lu,Nansha Gao,Hongzhong Chen,Xiaowei Zeng,Zhongjian Xie
Ferroptosis is a form of regulated cell death (RCD) induced by excessive lipid peroxidation, representing a promising mechanism for suppressing tumors. Herein, a type of nanoplatform (ODLP-PEGH8) was developed to harness the power of ferroptosis and immunogenic cell death (ICD) for the treatment of breast cancer. To enhance its effectiveness, this project incorporated a pH-responsive PEGH8 peptide onto the surface of the nanoplatform. This modification not only promoted charge reversal within the tumor microenvironment but also improved the cellular uptake efficiency of the nano-system, facilitating intracellular lysosomal escape. Subsequently, ODLP-PEGH8 rapidly degraded under conditions of low pH and exposure to light, resulting in the sequential release of the ferroptosis inducer lapatinib (LTB) and oxaliplatin (OXA). LTB induced ferroptosis and exhibited potent tumor cell-killing effects, while the ODLP-PEGH8, which possessed photothermal properties, worked with OXA to effectively induce ICD within the tumor. This dual approach triggered anti-tumor immune responses and had a substantial impact on tumor immunotherapy. All the results confirm that ODLP-PEGH8 mediates ferroptosis, enhancing the proliferation and infiltration of cytotoxic lymphocytes (CLTs) while demonstrating excellent biological safety in vivo. These findings suggest a promising therapeutic strategy for targeting ferroptosis in cancer treatment.
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Small
·
2025
·
IF 12.1
Jiabin Fang,Kang Wu,Lijun Qin,Jianguo Li,Wangle Zhang,Ting Gong,Hao Feng
Silicon anodes lose energy density during cycling due to baneful volume expansions and unfavorable interfacial rearrangements. In this work, silicon active materials are synthesized upon carbon black (CB@Si) using alternating pulses of SiCl4 and Si 2 H 6 by H/Cl exchange mechanism via atomic layer deposition. The loading and thickness of the deposited silicon material can be precisely tuned by changing the deposition cycle. 13.6 nm is demonstrated as the optimal thickness of the silicon layer based on the trade-off between capacity and stability. Next, a nanoporous fluorinated lithicone (LiFHQ) is controllably deposited onto CB@Si by molecular layer deposition. The pores in LiFHQ act as a buffer layer to relieve the silicon bulk from severe deformation by squeezing or ripping of pores, while the rich F groups in LiFHQ helps to construct a robust LiF-rich natural solid electrolyte interphase (nSEI)/LiFHQ hybrid skin. Molecular dynamics (MD) calculations verify that these pores allow a faster Li + permeation kinetics compared to a dense AlFHQ layer. The anode exhibits an impressive capacity retention of 70.2% at 2 A g −1 after 1000 cycles. This work demonstrates the advantages of atomic/molecular layer deposition strategies to synthesize the bulk and surface configurations of silicon anodes with high energy densities.
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高影响因子
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