[Illustration: REYNIER'S ZINC ACCUMULATOR. (One-fifth actual size.)]
The careful insulation of the trough and all parts of the apparatus, and
the purity of the metal and its amalgamation, reduce the local attack of
the zinc to almost nothing. So the coefficient of restitution is now
comparable with that of accumulators of the Plante type.
The following are the principal numerical data of the new zinc
accumulator.
PHYSICAL DATA.
E. Electromotive force. 2.36 volts.
R. Mean resistance. 0.02 ohm.
I. Normal intensity of the discharge current. 25 amperes.
i. Intensity of the charge current. 5 to 10 amperes.
Q. Capacity of accumulation after 200 hours' formation. 550,000 couples.
DATA CONCERNING CONSTRUCTION.
Efficient surface of the 4 positive electrodes. 200 square dec.
Efficient surface of the 3 negative electrodes. 15 square dec.
Weight of the positive electrodes. 8.2 kilogrammes.
Weight of the negative electrodes. 1.4 kilogrammes.
Weight of the trough. 2.7 kilogrammes.
Weight of the liquid. 4.
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