Infrared Spectroscopic Investigation of Charged Nickel Hydroxide Electrodes

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Abstract
Through the use of deuterated samples of electrodes at various stages of charge, it has been possible to make definitive band assignments for the structures of the active material. The relative intensity of the band due to hydrogen bonding in the charged state is shown to be a measure of the electrochemical capacity of the system. The charging reaction gives rise to the formation of active oxygen sites (as defined by Aia) through a site alteration mechanism in addition to the formation of hydrogen bonded sites within the charged phase. The mechanistic and structural implications of these spectral data are discussed in detail.

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