From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of Accu-Slem, Exide, and Lithanode batteries, detailing construction, paste, and weight.
| Identifier | WestWitteringFiles\M\2October1924-December1924\ Scan49 | |
| Date | 11th October 1924 | |
| Contd. -6- EFCL/T11.10.24. (1) Ebonite separators in addition to wood. (2) Central stay bolt and packing pieces to afford better support to individual cells. (3) Feet on plate grids. (4) Larger wood separators extending beyond the edge of the plates. (5) Rounded corners of plates. (6) Improved method of passing the lug through the cell lid.{A. J. Lidsey} (7) Method of sealing in all the cells in which the sealing is run in after the cells have been placed in the battery, (instead of individually). Apparently the reason of the superiority of these Accu-Slem cells lies mainly in the paste. This appears to be of a harder variety than has been in use by the Exide Co., vide Mr. Preston's report herewith. Another possible reason is the use of more robust grids. It will be understood that the experimental comparisons so far are with the earlier Exide batteries and any superiority over the finally approved Exide 6BXRE5 battery which may show itself as a result of the later experimental sandwich batteries is not yet demonstrated, the Exide grids and paste having undoubtedly been latterly improved. The weight of the Accu-Slem is 86 lbs. Lithanode. Recently, on 7.11.23, we received a Lithanode battery of 40/50 size, together with a sample opened up cell, - weight complete 92 lbs. Attached is a copy of my assistant's report JB.41 on the notes of interest of this battery, compared with our standard specification. Contd. | ||