16 research outputs found

    Dataset on broadband electrochemical impedance spectroscopy of Lithium-Ion batteries for different values of the state-of-charge

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    This dataset consists of electrochemical impedance spectroscopy measurements on commonly-used batteries, namely Samsung ICR18650-26J cylindrical Lithium-Ion cells. The complex impedance of the batteries was measured at a set of fourteen different frequencies from 0.05 Hz to 1000 Hz, using a random-phase multi-sine excitation signal. For each excited frequency, the current amplitude was 50 mA, resulting in a measurement uncertainty of approximately 0.1 mΩ. Six measurement repetitions are provided at ten different states-of-charge of four different brand-new batteries. Repeated EIS measurement results were obtained, for each individual battery cell, from six separate discharge cycles. All measurements were performed with the battery placed in a temperature-controlled chamber at 25 ± 1 °C. Batteries were allowed to thermalize before each measurement

    Dataset on Voltage and Current Data Acquisition During Broadband Electrochemical Impedance Spectroscopy of Lithium-Ion Batteries for Different Values of the State of Charge

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    The Electrochemical impedance spectroscopy (EIS) were measured on four brand new Samsung cylindrical ICR18650-26J rechargeable lithium-Ion batteries at SoC 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, and 10%. The measurements were repeated six times for each battery. Measurements on other batteries will be added to the dataset when available.Please note that this dataset contains the raw voltage and current data acquisition files in *.mat Matlab format. You will find computed EIS in the linked dataset

    Dataset on Voltage and Current Data Acquisition During Broadband Electrochemical Impedance Spectroscopy of Lithium-Ion Batteries for Different Values of the State of Charge

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    The Electrochemical impedance spectroscopy (EIS) were measured on four brand new Samsung cylindrical ICR18650-26J rechargeable lithium-Ion batteries at SoC 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, and 10%. The measurements were repeated six times for each battery. Measurements on other batteries will be added to the dataset when available.Please note that this dataset contains the raw voltage and current data acquisition files in *.mat Matlab format. You will find computed EIS in the linked dataset.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

    [OLD] Data For: Dataset on broadband Electrochemical Impedance Spectroscopy of Lithium-Ion Batteries for Different Values of the State of Charge

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    === NEW DATASET NOTICE =====We published a new dataset obtained with an improved data acquisition protocol and new measurements. We suggest considering the new dataset. ===============================Electrochemical impedance spectroscopy (EIS) on rechargeable lithium-Ion batteries. The EIS were measured on ten brand new Samsung cylindrical ICR18650-26J lithium-Ion batteries at SoC 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, and 10%. For three of the batteries, the measurements were repeated twice. (13 CSV files ,130 EIS in total).File : Data Source------------------------------------------- EIS_BATT_1: Battery 1 Measurement 1EIS_BATT_2: Battery 1 Measurement 2EIS_BATT_3: Battery 2 Measurement 1EIS_BATT_4: Battery 2 Measurement 2EIS_BATT_5: Battery 3 Measurement 1EIS_BATT_6: Battery 4 Measurement 1EIS_BATT_7: Battery 5 Measurement 1EIS_BATT_8: Battery 5 Measurement 1EIS_BATT_9: Battery 6 Measurement 1EIS_BATT_10: Battery 7 Measurement 1EIS_BATT_11: Battery 8 Measurement 1EIS_BATT_12: Battery 9 Measurement 1EIS_BATT_13: Battery 10 Measurement 1Each CSV file contains ten columns. Each column in the CSV file contains data of an EIS spectrum measured at one specific SoC. The first column is for SoC 100%. The last column is for SoC 10%. SoC Columns headers row (non included in the file) is: ['100','090','080','070','060','050','040','030','020','010']All EIS spectrum was computed measuring impedance at frequencies [ 0.05, 0.1, 0.2, 0.4, 1, 2, 4, 10, 20, 40, 100, 200, 400, 1000] Hz. Impedance values are in the format: Re{Z}+Im{Z}iOne impedance value for each row: Row #1: 0.05 HzRow #2: 0.1 HzRow #3: 0.2 Hz ... Row 14: 1000 Hz.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

    LiBEIS : A software tool for broadband electrochemical impedance spectroscopy of lithium-ion batteries[Formula presented]

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    Electrochemical impedance spectroscopy (EIS) is a fundamental tool used in numerous research fields and applications. In particular, EIS is commonly employed for studying and monitoring lithium-ion batteries, to ensure their safe and efficient operation. The LiBEIS software tool computes EIS data by processing the voltage and current time series acquired from a battery under test, which is excited with a broadband current signal. Furthermore, LiBEIS performs fitting of the EIS data to an equivalent circuit model, which is often employed in practice to analyse the behaviour of the battery. Finally, LiBEIS implements exploratory data analysis tools and machine-learning methods aimed at estimating the state-of-charge (SOC) from EIS data

    REMOVAL OF BTEX FROM WATER BY SUPER-EXPANDED GRAPHITE

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    Nanotechnologies and nanomaterials are the most promising technological frontier in the field of water protection in terms of high efficiency and environmental performances. Among them, graphene-based materials attracted a lot of interest during the last years. Graphene is the main building block of all graphite materials. It is a single sheet of carbon atoms contained in a 2D honeycomb lattice. The possibilities of technological applications of graphene-based materials are derived from some of their peculiar features such as high specific surface area, exceptional electrical conductivity and electron mobility. Expanded graphite is a graphene-based material deriving from graphite flakes expansion, which attracted a great interest in oil adsorption from water during the last ten years. A super-expanded graphite, with an apparent density down to 2.3 g/l, is characterized by highly crystalline nature that guarantees a thermal stability of the material up to 600°C in air and provides a hydrophobic behavior. Great efforts have been made in the last years to modify the water technologies for removing BTEX compounds from contaminated water. Although different methods have been used for BTEX removal from water, each of them possesses some limitations. Therefore a search of novel effective methods for water purification from BTEX compounds is still of recent interest. In this paper, we focus on the investigation of the adsorptive properties towards BTEX of super-expanded graphite

    Perchè continuare il percorso in SCI al termine dell'esperienza accademica?

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    L'importanza di appartenere ad una societĂ  scientifica va al di lĂ  del fatto di lavorare in accademia o industria

    Perchè continuare il percorso in SCI al termine dell'esperienza accademica?

    No full text
    L'importanza di appartenere ad una societĂ  scientifica va al di lĂ  del fatto di lavorare in accademia o industria
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