Recent improvements in PbO2 nanowire electrodes for lead-acid battery

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    23 Citazioni (Scopus)

    Abstract

    Lead oxide nanowires are an attractive alternative to conventional pasted electrodes, owing to their high surface area leading to high specific energy batteries. Here, we report the performance of template electrodeposited PbO2 nanowires used as positive electrodes. Nanostructured electrodes were tested at constant charge/discharge rate from 2 C to 10 C, with a cut-off potential of 1.2 V and discharge depth up to 90% of the gravimetric charge. These new type of electrodes are able to work at very high C-rate without fading, reaching an efficiency of about 90% with a very good cycling stability. In particular, after an initial stabilization, a specific capacity of about 200 mAh g-1, very close to the theoretical one of 224 mAh g-1, was drained for more than 1000 cycles at a C-rate higher than 1 C with an efficiency close to 90%. This behaviour significantly distinguishes PbO2 nanostructured electrodes from the conventional ones with pasted active material. In addition, discharge at a quasi-constant voltage of about 2.1 V, without reaching the cut-off potential also at high C-rate, occurs. This implies a quasi-constant energy supply during fast discharge. According to these findings, innovative applications as hybrid or electrical mobility or buffer in renewable energy plants can be envisaged.
    Lingua originaleEnglish
    pagine (da-a)181-188
    Numero di pagine8
    RivistaJournal of Power Sources
    Volume275
    Stato di pubblicazionePublished - 2015

    Fingerprint

    lead acid batteries
    Lead acid batteries
    Nanowires
    nanowires
    Electrodes
    electrodes
    cut-off
    Lead oxide
    lead oxides
    cycles
    renewable energy
    fading
    electric batteries
    Buffers
    templates
    Stabilization
    buffers
    stabilization
    energy
    Electric potential

    All Science Journal Classification (ASJC) codes

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

    Cita questo

    @article{46910dd2de764578b3330b72d0bd3a84,
    title = "Recent improvements in PbO2 nanowire electrodes for lead-acid battery",
    abstract = "Lead oxide nanowires are an attractive alternative to conventional pasted electrodes, owing to their high surface area leading to high specific energy batteries. Here, we report the performance of template electrodeposited PbO2 nanowires used as positive electrodes. Nanostructured electrodes were tested at constant charge/discharge rate from 2 C to 10 C, with a cut-off potential of 1.2 V and discharge depth up to 90{\%} of the gravimetric charge. These new type of electrodes are able to work at very high C-rate without fading, reaching an efficiency of about 90{\%} with a very good cycling stability. In particular, after an initial stabilization, a specific capacity of about 200 mAh g-1, very close to the theoretical one of 224 mAh g-1, was drained for more than 1000 cycles at a C-rate higher than 1 C with an efficiency close to 90{\%}. This behaviour significantly distinguishes PbO2 nanostructured electrodes from the conventional ones with pasted active material. In addition, discharge at a quasi-constant voltage of about 2.1 V, without reaching the cut-off potential also at high C-rate, occurs. This implies a quasi-constant energy supply during fast discharge. According to these findings, innovative applications as hybrid or electrical mobility or buffer in renewable energy plants can be envisaged.",
    keywords = "C-Rate; Cycle-life; High; Lead-acid battery; PbO2 nanowires; Template electrosynthesis; Electrical and Electronic Engineering; Energy Engineering and Power Technology; Renewable Energy, Sustainability and the Environment; Physical and Theoretical Chemistry",
    author = "Alessandra Moncada",
    year = "2015",
    language = "English",
    volume = "275",
    pages = "181--188",
    journal = "Journal of Power Sources",
    issn = "0378-7753",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - Recent improvements in PbO2 nanowire electrodes for lead-acid battery

    AU - Moncada, Alessandra

    PY - 2015

    Y1 - 2015

    N2 - Lead oxide nanowires are an attractive alternative to conventional pasted electrodes, owing to their high surface area leading to high specific energy batteries. Here, we report the performance of template electrodeposited PbO2 nanowires used as positive electrodes. Nanostructured electrodes were tested at constant charge/discharge rate from 2 C to 10 C, with a cut-off potential of 1.2 V and discharge depth up to 90% of the gravimetric charge. These new type of electrodes are able to work at very high C-rate without fading, reaching an efficiency of about 90% with a very good cycling stability. In particular, after an initial stabilization, a specific capacity of about 200 mAh g-1, very close to the theoretical one of 224 mAh g-1, was drained for more than 1000 cycles at a C-rate higher than 1 C with an efficiency close to 90%. This behaviour significantly distinguishes PbO2 nanostructured electrodes from the conventional ones with pasted active material. In addition, discharge at a quasi-constant voltage of about 2.1 V, without reaching the cut-off potential also at high C-rate, occurs. This implies a quasi-constant energy supply during fast discharge. According to these findings, innovative applications as hybrid or electrical mobility or buffer in renewable energy plants can be envisaged.

    AB - Lead oxide nanowires are an attractive alternative to conventional pasted electrodes, owing to their high surface area leading to high specific energy batteries. Here, we report the performance of template electrodeposited PbO2 nanowires used as positive electrodes. Nanostructured electrodes were tested at constant charge/discharge rate from 2 C to 10 C, with a cut-off potential of 1.2 V and discharge depth up to 90% of the gravimetric charge. These new type of electrodes are able to work at very high C-rate without fading, reaching an efficiency of about 90% with a very good cycling stability. In particular, after an initial stabilization, a specific capacity of about 200 mAh g-1, very close to the theoretical one of 224 mAh g-1, was drained for more than 1000 cycles at a C-rate higher than 1 C with an efficiency close to 90%. This behaviour significantly distinguishes PbO2 nanostructured electrodes from the conventional ones with pasted active material. In addition, discharge at a quasi-constant voltage of about 2.1 V, without reaching the cut-off potential also at high C-rate, occurs. This implies a quasi-constant energy supply during fast discharge. According to these findings, innovative applications as hybrid or electrical mobility or buffer in renewable energy plants can be envisaged.

    KW - C-Rate; Cycle-life; High; Lead-acid battery; PbO2 nanowires; Template electrosynthesis; Electrical and Electronic Engineering; Energy Engineering and Power Technology; Renewable Energy

    KW - Sustainability and the Environment; Physical and Theoretical Chemistry

    UR - http://hdl.handle.net/10447/158430

    M3 - Article

    VL - 275

    SP - 181

    EP - 188

    JO - Journal of Power Sources

    JF - Journal of Power Sources

    SN - 0378-7753

    ER -