Self-discharge mechanism of Ni-MH battery by using acrylic acid grafted polyp…

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 …