Nickel-Cadmium Cells

Abstract

its poor electrode efficiency is attributed to the fact that dialuric acid undergoes air oxidation readily. The high electrode efficiencies of hydroquinone and quinhydrone (in excess of 100%) have been shown to be due to a continued oxidation of the products of the initial oxidation reaction, i.e., p-quinone itself is easily oxidized in alkaline electrolyte (2).The electrochemical behavior of the alloxan-dialuric acid system, which has previously been studied polarographically (8), further emphasizes the aromatic nature of pyrimidine and the similarity of some of its derivatives to benzene compounds. ABSTRACTVoltage decays of electrodes in sintered type nickel-cadmium cells were measured in cells stored at temperatures between --18 ~ and 52~ The heat of reaction of the cell was calculated to be --64 kcal/g mole. The solid reaction products of the cell were studied, in situ, by x-ray techniques, in special cells designed to fit on an x-ray diffractometer.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 128.218.248.200 Downloaded on 2015-04-07 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 128.218.248.200 Downloaded on 2015-04-07 to IP

The Forming Process in Nickel Positive Electrodes

“…Both Salkind (11) and Falk (3) consider the x-ray diffraction patterns in which some Ni(OH)2 lines disappear and others appear as implying a solid solution phase transformation between Ni(OH)2 and beta phase. On the other hand, Foerster (9) in 1907 considered the oxidation to proceed with the formation of a new phase, a solid solution of tetravalent nickel in a trivalent oxide.…”

The Electrochemistry of Glassy 60Ni‐40Nb in Aqueous Media

“…However, the two processes most p r o b a b l y responsible for these features, and their redox potentials, E1 and E2, interpolated or calculated from the literature (31, 32) for (i) 15M NaOH at room temuerature (calculated pH 17) and (ii) 30% KOH at 70~ (calculated pH 14.9), respectively, are trodes (34,35), of the conversion of Ni(OH)9. to ~-NiOOH at this potential cannot be lightly dismissed. However, the two processes most p r o b a b l y responsible for these features, and their redox potentials, E1 and E2, interpolated or calculated from the literature (31, 32) for (i) 15M NaOH at room temuerature (calculated pH 17) and (ii) 30% KOH at 70~ (calculated pH 14.9), respectively, are trodes (34,35), of the conversion of Ni(OH)9. to ~-NiOOH at this potential cannot be lightly dismissed.…”

Electrolytic Cell for X-Ray Diffraction Studies of Electrode Phenomena

“…Some cufi-uaiin in investigations of the silver electrode has beo, cau sed by the report of Jones and Thirsk (6) of what they believed was the x -ray diffracti-n patern of AgO. The pattern reported has since been shown to be that of the so-called silver peroxysulfate Ag 7 OSO 4 and not AgO (7). Bi iggs, Dugdale, and Wynne-Jones (2) confirmed that the final product of anodizing Ag in H 2 SO 4 was mainly the peroxysulfate and not AgO.…”