Beta to gamma phase cycleable electrochemically active nickel hy

Details Beta to gamma phase cycleable electrochemically active nickel hy Beta to gamma phase cycleable electrochemically active nickel hy

1995-11-06

1999-05-18

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

2521821, H01M4/52

Patent

active

059050039

ABSTRACT:
An nickel hydroxide positive electrode active material which can be made by an ultrasonic precipitation method. The nickel hydroxide active material is characterized by the ability to reversibly cycle between the beta and gamma nickel hydroxide crystalline phases during electrochemical charge and discharge. The material may also be characterized by a high degree of local ordering of the hydroxyl ions.

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Ezhov et al., Structure Modification and Change of Electrochemical Activity of Nickel Hydroxide, J. Electrochem. Soc., vol. 138, pp. 885-889, Apr. 1991.
Greaves et al., Structural and Electrochemical Characteristics of Platic Bonded Nickel Hydroxide Electrodes, J. Power Sources, vol. 12, pp. 195-202 (no month), 1984.

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