Enhanced nickel hydroxide positive electrode materials for alkal

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

429218, 429224, H01M 432, H01M 452

Patent

active

055231829

ABSTRACT:
A positive electrode material for use in electrochemical cells. This material comprises particles of positive electrode material including at least one electrochemically active hydroxide and a substantially continuous, uniform, encapsulant layer surrounding the particles of positive electrode material. The encapsulant layer is formed from a material which, upon oxidation during processing or during charging of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form. Preferably, the electrochemically active hydroxide includes at least nickel hydroxide. The encapsulant layer is preferably formed from at least cobalt hydroxide or cobalt oxyhydroxide. This layer is formed on the particles of positive electrode material by precipitation from a cobalt salt solution, which can be a cobalt sulfate solution. Also disclosed are positive electrodes including the material and a precipitation method of forming the material.

REFERENCES:
patent: 4574096 (1986-03-01), Ferrando
patent: 4595463 (1986-06-01), Lee
patent: 4837119 (1989-06-01), Ikoma et al.
patent: 4844948 (1989-07-01), Nakahori et al.
patent: 4985318 (1991-01-01), Oshitani et al.
patent: 5100748 (1992-03-01), Doniat et al.
F. A. Cotton and G. Wilkinson, Advanced Inorganic Chemistry, 3rd edition, Interscience Publishers, 1972, pp. 189, 208, 802.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Enhanced nickel hydroxide positive electrode materials for alkal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enhanced nickel hydroxide positive electrode materials for alkal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced nickel hydroxide positive electrode materials for alkal will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-382371

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.