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    • 49. 发明申请
    • ALKALINE BATTERY
    • 碱性电池
    • US20110020691A1
    • 2011-01-27
    • US12671384
    • 2009-08-31
    • Susumu Kato
    • Susumu Kato
    • H01M2/14H01M4/50H01M4/42
    • H01M6/04H01M2/14H01M4/06H01M4/244H01M4/38H01M4/42H01M4/50H01M6/08H01M10/24H01M10/4235H01M2002/0297H01M2004/021H01M2004/023
    • The present invention provides an alkaline battery which has high reliability and high cost performance and does not cause an internal short circuit resulting from gel leakage even when the filling densities of the positive and negative electrodes are reduced. In the alkaline battery, a positive electrode 2 contains manganese dioxide as a positive electrode active material, a negative electrode 3 is a gel negative electrode containing zinc as a negative electrode active material, a filling density of manganese dioxide in the positive electrode 2 is in a range of 2.31 to 2.45 g/cm3, a filling density of zinc in the negative electrode 3 is in a range of 1.49 to 1.65 g/cm3, and a ratio (h1/h2) between a height of the positive electrode 2 (h1) and a height of the negative electrode 3 (h2) is in a range of 0.96 to 1.06.
    • 本发明提供一种具有高可靠性和高性价比的碱性电池,即使当正极和负极的填充密度降低时,也不会引起由于凝胶渗漏引起的内部短路。 在碱性电池中,正极2含有二氧化锰作为正极活性物质,负极3是含有锌作为负极活性物质的凝胶负极,正极2中的二氧化锰的填充密度为 2.31〜2.45g / cm 3的范围,负极3的锌的填充密度为1.49〜1.65g / cm 3,正极2的高度(h1 / h2) ),负极3(h2)的高度在0.96〜1.06的范围内。