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Korean Journal of Materials Research, Vol.22, No.12, 717-721, December, 2012
플렉서블 Li/MnO2 일차전지의 제조공정에 따른 전기적 특성
Electrical Characteristics According to the Manufacturing Process of the Flexible Li/MnO2 Primary Cell
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Manganese dioxide (MnO2) is one of the most important cathode materials used in both aqueous and non-aqueous batteries. The MnO2 polymorph that is used for lithium primary batteries is synthesized either by electrolytic (EMD-MnO2) or chemical methods (CMD-MnO2). Commonly, electrolytic manganese dioxide (EMD) is used as a cathode mixture material for dry-cell batteries, such as a alkaline batteries, zinc-carbon batteries, rechargeable alkaline batteries, etc. The characteristics of lithium/manganese-dioxide primary cells fabricated with EMD-MnO2 powders as cathode were compared as a function of the parameters of a manufacturing process. The flexible primary cells were prepared with EMD-MnO2, active carbon, and poly vinylidene fluoride (PVDF) binder (10 wt.%) coated on an Al foil substrate. A cathode sheet with micro-porous showed a higher discharge capacity than a cathode sheet compacted by a press process. As the amount of EMD-MnO2 increased, the electrical conductivity decreased and the electrical capacity increased. The cell subjected to heat-treatment at 200 oC for 1 hr showed a
high discharge capacity. The flexible primary cell made using the optimum conditions showed a capacity and an average voltage of 220 mAh/g and 2.8 V, respectively, at 437.5 μA.
- Dell RM, Solid State Ionics, 143, 139 (2009)
- Lee TJ, Cheng TT, Juang HK, Chen SY, Fey GTK, Jaw HK, J. Power Sources, 44, 709 (1993)
- Ohzuku T, Kitagawa M, Hirai T, J. Electrochem. Soc., 136, 3169 (1989)
- Shaohorn Y, Hackney SA, Cornilsen BC, J. Electrochem. Soc., 144(9), 3147 (1997)
- Chabre Y, Pannetier J, Prog. Solid State Chem., 23, 1 (1995)
- Andersen TN, Progress in Batteries & Battery Materials, Vol. 11, p. 105-129, eds. D. A. J. Swinkels, Ite-Jec Press, Inc., Ohio, USA. (1992)
- Williams R, Fredlein R, Lawrance G, Swinkels D, Ward C, Progress in Batteries & Battery Materials, Vol. 13, p. 102-112, eds. D. A. J. Swinkels, Ite-Jec Press, Inc., Ohio, USA. (1994)
- Wolff PMD, Visser JW, Giovanoli R, Brutsch R, Chimia, 32, 257 (1978)
- Akashi H, Tanaka K, Sekai K, J. Power Sources, 104(2), 241 (2002)
- Lee JA, Newnham CE, Stone FS, Tye FL, J. Colloid Interface Sci., 45, 289 (1973)
- Tye FL, Electrochim. Acta, 21, 415 (1976)
- Reuschi P, J. Electrochem. Soc., 131, 2737 (1984)
- Fillaux F, Cachet CH, Ouboumour H, Tomkinson J, Levy-Clement C, Yu LT, J. Electrochem. Soc., 140, 585 (1993)