DESIGN AND MANUFACTURE OF SEALED NICKEL-CADMIUM CELLS OF CYLINDRICAL DESIGN TO SIGNAL CORPS TECHNICAL REQUIREMENT SCL-7504
Abstract
A design was established of the fourth series prototype which successfully passed the vibration requirements of SCL-7504. The design incorporates rectangular stack-ups for the core in all 3 sizes of cells. The core is immobilized by means of nylon wedges placed between the cylinder wall and the ends and edges of the stack-ups. The 10 A.H. cell design incorporates 2 sizes of plates, while the 50 A.H. and 100 A.H. each have 3 sizes of plates. Other final design features are as follows: (1) both terminals and vent on same end of cell, (2) flat end plates for cell container, (3) teflon seals, (4) non-woven polypropylene separator, (5) .023 in. positive and negative plates with 9 square inches of positive plate per A.H. of nominal capacity, (6) terminals insulated from cell container, (7) cell case material of stainless steel, and (8) 1.4 Sp. Gr. KOH electrolyte. Life cycling on early prototypes (10 A.H.) which contain paper separator and spiral core has reached 4000 c at the 20% depth of discharge. At this point the end of charge voltage was 1.46 and end of discharge voltage was 1.18. Life cycling of D size cells with polypropylene separator has reached 1700 c. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 29, 1961
- Accession Number
- AD0264807
Entities
People
- Francis J. Alliegro