Accession Number : AD0808839

Title :   LITHIUM-NICKEL FLUORIDE SECONDARY BATTERY INVESTIGATION.

Descriptive Note : Quarterly technical progress rept. no 3, 27 Oct 66-27 Jan 67,

Corporate Author : GULTON INDUSTRIES INC METUCHEN NJ BATTERY AND POWER SOURCES DIV

Personal Author(s) : Lyall, Arthur E. ; Seiger, Harvey N. ; Orshich, John ; Michaels, Robert G.

Report Date : FEB 1967

Pagination or Media Count : 32

Abstract : The purity of commercially available anhydrous nickel fluoride has been found to be below the stated purity of 95 percent. Most of the impurity has been found to be water. There is also some free HF and iron. Experiments with binders for the nickel fluoride electrode have shown that the fabrication technique is as critical (if not more so) as the type of binder material. Electrolyte studies have continued. Plots of (lambda sub obs + SC (1/2)) vs. concentration show that gamma-butyrolactone, and to a lesser degree, dimethylsulfoxide, are solvents for KPF6 and NaPF6 which do not show ion-pairing. Other solvents tested do show ion-pairing. Pulse discharge data of a 13.5 ampere-hour cell show the cells internal impedance to be 83.3 milliohms. This is far in excess of what can be attributed to the electrolyte and separator resistance. (Author)

Descriptors :   *FLUORIDES), *LITHIUM), (*STORAGE BATTERIES, CATHODES), (*CATHODES, NICKEL COMPOUNDS), (*NICKEL COMPOUNDS, (*ANODES, BINDERS, ELECTROLYTES, LACTONES, KETONES, BUTANES, SULFOXIDES, METHANE, POTASSIUM COMPOUNDS, SODIUM COMPOUNDS, PHOSPHATES, ELECTRICAL IMPEDANCE, ELECTROLYTES, BATTERY SEPARATORS.

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE