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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).
Failure analysis report on a multiple storage cell battery.

Identifier  ExFiles\Box 41\2\  Scan154
Date  3rd February 1928
  
ROLLS-ROYCE, LTD.
INSTRUCTIONS.
To: E & C
Date: 3-2-28
Order No. SP{Mr Spinney} A.1.
Customer's No: X 3711
Failure of Multiple Storage Cell
On opening up this cell the positive plates had lost a lot of paste, the grids being fairly strong but were easily fractured. The negative plates appeared to be strong mechanically. The cell was badly sulfated, and failure was due to accumulated sediment and also to badly fitting separators, which did not come to the edge of the plates causing the paste of the negatives to swell and bridge across to the positives, thereby shorting the cell. The plates have a diagonal rib to prevent buckling, which seems to be very effective.
Signed: S.P.
This Sheet must be filed on completion of the work.
RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 431-8 12 24) MP 306975
X3711
  
  


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