| 摘要 |
PCT No. PCT/GB91/00280 Sec. 371 Date Sep. 21, 1992 Sec. 102(e) Date Sep. 21, 1992 PCT Filed Feb. 22, 1991 PCT Pub. No. WO91/13471 PCT Pub. Date Sep. 5, 1991.An electric cell 10 comprising a ceramic porous plate 12 which has previously been soaked in sulphuric acid such that a substantial volume of the pores contain sulphuric acid. Spaces are provided on either side of the plate 12 by a casing 14. The spaces are respectively filled, one with powdered lead-oxide 16, and the other with lead powder 18. Strips of lead 20, 22 extend from adjacent the base of the casing 14 through respectively the lead oxide 16 and the lead powder 18 and through an upper removable cap 24 of the casing 14 to provide terminals 26, 28. |
