Engineering Evaluation of the Zinc-Mercuric Oxide Battery/Nickel-Cadmium Battery Hybrid System.
Research and development technical rept.,
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J
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Appreciable improvements in the operating characteristics of the zinc mercuric oxide ZnHgO primary battery were obtained at 20F on communication transmitreceive type loads by using it in parallel with a nickel cadmium NiCd secondary battery. However, at 70F, the ZnHgO battery-NiCd battery hybrid system failed to provide as much capacity as the ZnHgO battery alone because of overcharge during the receive portion of the discharge. Data are presented to show the influence on capacity of duty cycle 1 minute9 minutes versus 1 minute4 minutes, charge current controls during the discharge 50 ohms versus 90 ohms, and discharge loads 70 ohms1400 ohms and 140 ohms2800 ohms. Overcharge during pre-charge of the NiCd battery by the ZnHgO battery prior to test can have a significant effect on the final capacity obtained.
- Electrochemical Energy Storage