Accession Number : AD0476224

Title :   POSITIVE PLATE SULFATION CHARACTERISTICS OF THE LEAD-CALCIUM GRID BATTERY.

Descriptive Note : Final rept.,

Corporate Author : NAVAL APPLIED SCIENCE LAB BROOKLYN NY

Personal Author(s) : Tudor, S. ; Weisstuch, A. ; Davang, S. H.

Report Date : 29 DEC 1965

Pagination or Media Count : 31

Abstract : Sulfation patterns in charged positives of thick and thin-plate lead-calcium grid cells, with and without H3PO4 additive, were determined autoradiographically. A mechanism is proposed to explain capacity maintenance behavior of these cells. Thickness and density of positive active material was more important for capacity maintenance than grid thickness or surface area. Improved thin-plate lead-calcium grid cells were developed utilizing: (1) H3PO4 incorporated in the positive paste mix for extended service life, and (2) a double-layer positive paste structure for improved capacity maintenance without sacrifice of the high discharge rate capability. (Author)

Descriptors :   *SULFATION), (*STORAGE BATTERIES, (*ANODES(ELECTROLYTIC CELL), SULFATION), BATTERY COMPONENTS, ELECTRIC BATTERIES, CAPACITANCE, LEAD(METAL), CALCIUM, ELECTRODES, ADDITIVES, PHOSPHORIC ACIDS, THICKNESS, RADIOGRAPHY, SUBMARINES, ELECTROCHEMISTRY.

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE