论文信息 - The possible use of polymer gel electrolytes in nickel/metal hydride battery

The possible use of polymer gel electrolytes in nickel/metal hydride battery

Abstract Alkaline polymer gel electrolyte was prepared from potassium salt of cross-linked poly(acrylic acid) and KOH aqueous solution in order to investigate the applicability of the polymer gel electrolyte to alkaline secondary batteries such as nickel/metal hydride (Ni/MH) battery. The polymer gel electrolyte was found to have high ionic conductivity and wide potential window almost comparable to the KOH aqueous solution over the wide ranges of KOH concentration and temperature. An experimental Ni/MH cell was assembled using polymer gel electrolyte and its charge–discharge and capacity retention characteristics were tested. The cell using the polymer gel electrolyte exhibited somewhat better charge–discharge and capacity retention characteristics at 25 °C compared with a similar type of cell assembled using KOH aqueous solution.

C. Iwakura | Chiaki Iwakura

[1] J. Fauvarque,et al. A new class of PEO-based SPEs: structure, conductivity and application to alkaline secondary batteries , 1998 .

[2] B. Scrosati,et al. Proton Polymeric Gel Electrolyte Membranes Based on Polymethylmethacrylate , 1999 .

[3] J. Fauvarque,et al. Nickel/Metal Hydride Secondary Batteries Using an Alkaline Solid Polymer Electrolyte , 1999 .

[4] J. Fauvarque,et al. Alkaline poly(ethylene oxide) solid polymer electrolytes. Application to nickel secondary batteries , 1995 .

[5] T. Sakai,et al. Proton Conduction of Tetramethylammonium Hydroxide Pentahydrate, ( CH 3 ) 4 NOH · 5 H 2 O , and Its Application to Nickel‐Metal Hydride Battery , 1990 .

[6] Jean-François Fauvarque,et al. Electrochemical properties of an alkaline solid polymer electrolyte based on P(ECH-co-EO) , 2000 .

[7] M. Watanabe,et al. Preparation, Mechanical Properties, and Electrochemical Characterization of Polymer Gel Electrolytes Prepared from Poly(alkylene oxide) Macromonomers , 1999 .