| 摘要 |
1,203,193. Dry cells. M. CAPEL and S. FREETH. 9 April, 1969 [1 Feb., 1969; 26 March, 1969], Nos. 5557/69 and 15837/69. Heading H1B. A Zn-C dry cell has an electrolyte of NH 4 Cl, ZnSO 4 and glycerin. The depolarizer mix contains KMnO 4 , MgSO 4 , carbon granules and glycerin and is separated from the anolyte by a paper covering coated on the side towards the depolarizer with ferric oxide and gum. |
