e-journal

Self-discharge mechanism of Ni-MH battery by using acrylic acid grafted polypropylene separator

---

Abstract.
The deposition of corrosion products of MmNi3.55Co0.75Al0.2Mn0.5 alloy in the positive
electrodes of nickel-metal-hydride (Ni-MH) battery is tested by using inductively coupled
plasma spectroscopy. The deposition amounts of Al and Mn are markedly reduced by using
an acrylic acid (AA) grafted polypropylene (PP) separator. The detrimental effect of Mn on
self-discharge performance of Ni-MH battery is indirectly demonstrated by using nickelcadmium
(Ni-Cd) battery with a deliberate addition of Mn element into the KOH electrolyte.
The shuttle reactions between Mn(III) and Mn(II) in the electrolyte are confirmed by
cyclic voltammetry tests. Based on these results, a possible mechanism of AA grafted PP
separator is proposed that it can trap Mn ion in the electrolyte, thus suppressing the
detrimental shuttle reactions, and thereby reducing the self-discharge rate of the batteries.

Keywords: Nickel-metal-hydride battery; Acrylic acid grafted polypropylene; separator; Self-discharge; Mn; Shuttle reactions

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

International Journal of Hydrogen Energy

No. Panggil

-

Penerbit

New York : Elsevier Ltd.., 2010

Deskripsi Fisik

International Journal of Hydrogen Energy 35 (2010) 3798 – 3801

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

35 (2010)

Subjek

KIMIA MATERIAL

Info Detail Spesifik

-

Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar