| 摘要 |
769,850. Batteries. ACCUMULATORENFABRIK AKT.-GES. June 10, 1955 [June 19, 1954], No. 16780/55. Class 53. A solid electrolyte for a lead accumulator consists of sulphuric acid having a specific gravity of about 1.28 mixed with sodium silicate and dry leached wood dust. The constituent proportions may be 1000 cc. of H 2 SO 4 , 200 cc. of NaSiO 3 and 80 gm. of wood dust. |
