Investigation on electrolyte-immersed properties of lithium-ion battery cellulose separator through multi-scale method

Xie, Weigui; Liu, Wangyu; Dang, Yanping; Tang, Aimin; Deng, Tao; Qiu, Weiping

doi:10.1016/j.jpowsour.2019.02.002

Cited by 40 publications

(27 citation statements)

References 33 publications

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“…Hence, the polypropylene separator will produce a better battery performance. This observation agrees with the work by Xie et al (2019).…”

Section: Performance Of Polypropylene Against a Paper-based Separatorsupporting

confidence: 94%

“…However, the cellulose-based separator may face several drawbacks, such as swelling when immersed in an electrolyte causing strength weakening and a change of material properties as compared with polymer separators. Xie et al (2019) investigated the tensile properties of a cellulose separator under the electrolyte-immersed condition and discovered that Young's modulus of the separator is reduced and the expansion coefficient is increased. This further proved that the strength of the separator is weakening and swelling occurs in electrolyte-immersed conditions (Xie et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Xie et al (2019) investigated the tensile properties of a cellulose separator under the electrolyte-immersed condition and discovered that Young's modulus of the separator is reduced and the expansion coefficient is increased. This further proved that the strength of the separator is weakening and swelling occurs in electrolyte-immersed conditions (Xie et al, 2019). Although the mechanical properties of the cellulose separator deteriorated in aqueous electrolyte, the swelling of cellulose separators will improve the performance of the separators as well as the electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Polypropylene-Based Aluminium-Air Battery

Tan¹,

Saw²,

Yew³

et al. 2021

Front. Energy Res.

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Global energy demand is rising due to the rapid development and adoption of new technologies in every sector. Hence, there is a need to introduce a clean energy source that does not cause damage to the environment. Aluminium-air battery with its high theoretical specific volumetric capacity is an exciting alternative for post-lithium energy storage and has been at the forefront of energy research for years. However, the conventional aqueous electrolyte-based aluminium-air battery with bulky liquid storage, parasitic corrosion of aluminium in contact with the electrolyte, and formation of a passive oxide or hydroxide layer has precluded its widespread application. In order to achieve successful simplification and cost-effectiveness, a novel idea of a polypropylene-based aluminium-air battery is proposed. In this work, a polypropylene-based aluminium-air battery was constructed using aluminium foil as an anode, carbon fiber cloth as an air-cathode, and Polypropylene and Kimwipes as the separator. The effects of the electrolyte concentration on the aluminium-air battery were investigated and analyzed using various discharge currents. The study showed that the performance of the polypropylene separator is better than that of the Kimwipes separator. The battery capacity is negatively correlated with the concentrations of the electrolyte. At a discharge current of 30 mA, the aluminium-air battery has a specific capacity of 375 mAh g−1 when 1 M of potassium hydroxide was used as electrolyte.

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“…Hence, the polypropylene separator will produce a better battery performance. This observation agrees with the work by Xie et al (2019).…”

Section: Performance Of Polypropylene Against a Paper-based Separatorsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of the Polypropylene-Based Aluminium-Air Battery

Tan¹,

Saw²,

Yew³

et al. 2021

Front. Energy Res.

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“…Material yang umum digunakan pada separator komersial adalah bahan poliolefin karena memiliki kelebihan berupa stabilitas kimia, dan sifat mekanik yang cukup baik. Namun, dalam penggunaannya separator polielofin memiliki sifat wettability yang terbatas dan ketidakstabilan dimensi pada temperatur operasi yang tinggi [4,5]. Oleh karena itu, saat ini pengembangan material alternatif untuk menggantikan poliolefin sebagai separator sangat gencar dilakukan.…”

Section: Pendahuluanunclassified

Pembuatan Dan Karakterisasi Separator Baterai Berbahan Selulosa Alga Cladophora

Fauza

Mardiyati

Steven

2019

JTBBT

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Membran separator merupakan salah satu komponen penting yang berfungsi sebagai pemisah antara dua elektroda untuk transfer ion didalam elektrolit, serta memastikan keselamatan dan performa kapasitansi pada baterai. Pengembangan material separator baterai yang ramah lingkungan saat ini banyak dilakukan dengan tujuan untuk mencari material alternatif selain poliolefin. Salah satu material yang cukup menjanjikan adalah selulosa. Selulosa memiliki sifat wettability yang baik, biaya pemrosesan yang rendah, sifat mekanik yang baik dan merupakan material yang dapat diperbaharui. Pada penelitian ini dilakukan pembuatan separator baterai dari bahan selulosa yang diekstrak dari alga Cladophora. Selulosa diperoleh melalui tiga perlakuan yaitu alkalisasi dengan menggunakan NaOH 17,5%, perlakuan asam dengan menggunakan H2SO4 1M dan bleaching dengan menggunakan H2O2 5%. Membran separator dibuat dengan menggunakan metode solution casting dengan konsentrasi selulosa sebesar 0,011; 0,008; 0,006; 0,004 dan 0,003 gr/cm2. Pengukuran porositas dan stabilitas termal dilakukan dengan menggunakan scannning electron microscopy (SEM) dan thermogravimetric analysis (TGA). Pengujian stabilitas kimia dan sudut kontak dilakukan untuk menentukan ketahanan kimia membran separator terhadap elektrolit dan sifat wettability. Dari penelitian ini dapat disimpulkan bahwa selulosa yang diekstrak dari alga Cladophora memiliki potensi yang besar untuk dimanfaatkan sebagai bahan baku pembuatan membran separator baterai.Kata Kunci: alga, Cladophora, membran separator, porositas, selulosa.

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“…The mechanical properties of separators have been comprehensively investigated and their constitutive models [4][5][6][7][8][9][10] depend on manufacturing process, environmental conditions (e.g. wet/dry [5][6][7], temperatures [8], charge-discharge cycles [9] and strain-rates [5,7,8,10]).…”

Section: Introductionmentioning

confidence: 99%

Porosity variation of lithium-ion battery separators under uniaxial tension

Wang

Xing

2020

International Journal of Mechanical Sciences

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Separators in lithium-ion batteries are susceptible to uneven distributions of deformation, which may lead to inhomogeneous porosity distribution when batteries are subject to complex external loadings. In this study, uniaxial tensile tests were performed for four types of commercial separators and the in-situ 3D Digital Image Correlation (DIC) technique was used to measure the strain fields. In order to minimise the adverse effect caused by the wrinkling in strip-shaped specimens, dogbone-shaped specimens were designed to improve the measurement consistency by avoiding the occurrences of wrinkles in wet-processed separators whose deformation response has weak anisotropy. Homogeneous strain distributions were observed in both wet-and dry-processed separators oriented in the machine direction, but two deformation mechanisms of necking were found for dry-processed separators in the transverse direction. In the range of strain between 0 and 0.5, no thickness change was found in all separators, and large in-plane Poisson's ratio (up to 1.4) was found in wet-processed separators. The relationship between longitudinal and transverse strains was determined experimentally, based on which the in-plane Poisson's ratio is expressed as a polynomial function of longitudinal strain. Finally, relationship between material porosity and longitudinal strain were determined which can provide additional information in multiphysics simulations.

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Investigation on electrolyte-immersed properties of lithium-ion battery cellulose separator through multi-scale method

Cited by 40 publications

References 33 publications

Analysis of the Polypropylene-Based Aluminium-Air Battery

Analysis of the Polypropylene-Based Aluminium-Air Battery

Pembuatan Dan Karakterisasi Separator Baterai Berbahan Selulosa Alga Cladophora

Porosity variation of lithium-ion battery separators under uniaxial tension

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