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Lithium ion battery separators: Development and performance characterization of a composite membrane

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Abstract.
The overall stability of the lithium ion battery separators, under potentially extreme battery operating
conditions, will require leading edge design and fabrication techniques to exceed manufacturing and
end performance requirements for large scale applications. This paper features the development and
performance characterization of an inorganic fiber enhanced composite separator for LIBs. This
composite separator can offer a thermally stable alternative for conventional porous polyolefin
separators, which shrink significantly at high temperatures. The relative affinities between the
electrolyte and the submicron inorganic fibers and the electrolyte and the polyvinylidene fluoride
binder ensured a superior wettability of the final separator by the liquid electrolyte. The high porosity
and the open porous structure of the composite separator resulted in a good effective ionic
conductivity. Coin cells with this composite separator also exhibited stable cycle performance and
improved rate capabilities, especially when discharged at rates greater than C/2.

Keywords: Lithium ion battery; Separator; Non-woven; Rate capability; Gel electrolyte

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Membrane Science

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2013

Deskripsi Fisik

Journal of Membrane Science 425-426 (2013) 163–168

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

425-426 (2013)

Subjek

KIMIA MATERIAL

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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