| 摘要 |
1356422 Primary cells UNION CARBIDE CORP 28 July 1971 [29 July 1972] 35349/71 Heading H1B A dry cell comprises a zinc can 10, a cathode depolarizer mix 12 containing MnO 2 , carbon black and an electrolyte, and a separator 18. The ratio by weight of the MnO 2 to carbon black is within the range of from 4 :1 to 9 :1, the electrolyte is selected from a normal aqueous zinc chloride solution or an aqueous solution containing at least one of magnesium perchlorate, magnesium bromide, zinc perchlorate and zinc bromide, and the electrolyte constitutes from 60 to 71% by volume of the total depolarizer mix. |
