Improvement of the Ar/N2 binary plasma-treated carbon passivation layer deposited on Li4Ti5O12 electrodes for stable high-rate lithium ion batteries

Lan, Chun-Kai; Chang, Che-Ming; Wu, Cheng‐Yu; Chen, Bing-Hong; Duh, Jenq‐Gong

doi:10.1039/c5ra17522d

Cited by 8 publications

(4 citation statements)

References 48 publications

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“…After lithiation, the peaks at 1650, 1296, 1022, and 847 cm −1 may be related to the formation of ROCOOLi and Li 2 CO 3 (Figure S5). 48 The new Li‐containing groups appear and water molecules confined within the channel of attapulgite are expelled, further improving the thermal stability of IPE with a decomposition temperature starting from ca. 450°C (Figure S6).…”

Section: Resultsmentioning

confidence: 99%

An ion‐percolating electrolyte membrane for ultrahigh efficient and dendrite‐free lithium metal batteries

Xu,

Dai,

Wang

et al. 2023

InfoMat

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The development of lithium (Li) metal batteries has been severely limited by the formation of lithium dendrites and the associated catastrophic failure and inferior Coulombic efficiency which caused by non‐uniform or insufficient Li+ supply across the electrode–electrolyte interface. Therefore, a rational strategy is to construct a robust electrolyte that can allow efficient and uniform Li+ transport to ensure sufficient Li+ supply and homogenize the Li plating/stripping. Herein, we report an ion‐percolating electrolyte membrane that acts as a stable Li+ reservoir to ensure a near‐single Li+ transference number (0.78) and homogenizes Li+ migration to eradicate dendrite growth, endowing Li//LFP cell with an ultrahigh average Coulombic efficiency (ca. 99.97%) after cycling for nearly half of a year and superior cycling stability when pairing with LiCoO2 with limited Li amount and LiNi0.8Mn0.1Co0.1O2. These estimable attributes demonstrate significant potential of utility value for the ion‐percolating electrolyte.image

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Section: Resultsmentioning

confidence: 99%

An ion‐percolating electrolyte membrane for ultrahigh efficient and dendrite‐free lithium metal batteries

Xu,

Dai,

Wang

et al. 2023

InfoMat

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“…The peaks at wavenumbers 486.36 and 586.21 cm -1 indicate the presence of a symmetrical and asymmetrical spectrum of the stretching octahedral group so that it can be ascertained that there is a spinel LTO peak [21]. The FTIR spectrum at wavenumber 937.07 cm -1 represents the presence of C-O groups [27] and wavenumber 1473.36 cm -1 represents the spectrum of carboxyl groups -CH2, respectively [28]. Scanning Electron Microscopy (SEM) morphology aims to determine the surface morphology of the appearance of the particles analyzed at x1000, x2500, and x5000 magnifications.…”

Section: Testingmentioning

confidence: 99%

Comparative Study of Novelty Thin-films for Li-ion Batteries

Ikhsanudin

2022

ESTA

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The development of Li-ion batteries leads to high-density Li-ion battery technology as a storage system. to realize a Li-ion battery with a high energy density is to modify its anode, called a thin-film anode. The anode used is coated with a material thickness of 10 mm, increasing the cathode material that can be accommodated in one cell. This study aimed to analyze the Cu-powder and LTO materials used in Thin-film Li-ion batteries as a substitute for graphite because they offer higher capacity, chemical stability, fast charging technology (LTO), cheap, and environmentally friendly (Cu-powder). Based on XRD and FTIR tests, the material has a good crystal structure, and not many impurities are still contained in it. The SEM results showed that both particles showed uniformity in the shape of a single particle and were strengthened by the SEM-EDX test to review the quantity of each element present in the two materials. The electrochemical test results showed that Cu-powder material was better, with a specific capacity of 144.82 mAh g-1, higher than LTO (81.04 mAh g-1).

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“…3500 cm −1 is a characteristic of O-H stretching vibration from adsorbed water [27]. The IR bands at 1441, 1500, and 1636 cm −1 indicate the formation of Li 2 CO 3 , where it may have been formed upon the reaction of LiOH with atmospheric CO 2 in the presence of moisture [28].…”

Section: Ftir and N 2 Adsorption-desorption Analysesmentioning

confidence: 99%

ZnO Surface Doping to Enhance the Photocatalytic Activity of Lithium Titanate/TiO2 for Methylene Blue Photodegradation under Visible Light Irradiation

et al. 2020

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Wastewater contaminated with dyes produced by textile industries is a major problem due to inadequate treatment prior to release into the environment. In this paper, the ability of ZnO to enhance the interfacial photocatalytic activity of lithium titanate/TiO2 (LTO/TiO2) for the photodegradation of methylene blue (MB) under visible light irradiation (4.38 mW/cm2) was assessed. The ZnO-doped lithium titanate/TiO2 (ZnO/LTO/TiO2) was synthesized using a combination of hydrothermal and wetness impregnation methods. The high-resolution transmission electron microscope (HRTEM) and X-ray Diffraction (XRD) analyses indicate that the ZnO/LTO/TiO2 contain several phases (ZnO, LTO, and TiO2). The adsorption capacity of LTO/TiO2 (70%) was determined to be higher compared to its photocatalytic activity (25%), which is attributed to the strong interaction between the Li and surface oxygen atoms with the MB dye molecules. The introduction of ZnO improved the photocatalytic ability of LTO/TiO2 by 45% and extended the life span of ZnO/LTO/TiO2. The ZnO/LTO/TiO2 can be reused without a significant loss up to four cycles, whereas LTO/TiO2 had reduced adsorption after the second cycle by 30%. The ZnO increased the surface defects and restrained the photo-induced electrons (e−) from recombining with the photo-induced holes (h+). Scavenging tests indicated that the hydroxyl radicals played a major role in the photodegradation of MB, which is followed by electrons and holes.

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Improvement of the Ar/N₂ binary plasma-treated carbon passivation layer deposited on Li₄Ti₅O₁₂ electrodes for stable high-rate lithium ion batteries

Cited by 8 publications

References 48 publications

An ion‐percolating electrolyte membrane for ultrahigh efficient and dendrite‐free lithium metal batteries

An ion‐percolating electrolyte membrane for ultrahigh efficient and dendrite‐free lithium metal batteries

Comparative Study of Novelty Thin-films for Li-ion Batteries

ZnO Surface Doping to Enhance the Photocatalytic Activity of Lithium Titanate/TiO2 for Methylene Blue Photodegradation under Visible Light Irradiation

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