Ni/metal hydride secondary element
Patent
·
OSTI ID:1175324
A Ni/metal hydride secondary element having a positive nickel hydroxide electrode, a negative electrode having a hydrogen storage alloy, and an alkaline electrolyte, the positive electrode, provided with a three-dimensional metallic conductive structure, also contains an aluminum compound which is soluble in the electrolyte, in addition to nickel hydroxide and cobalt oxide. The aluminum compound is aluminum hydroxide and/or aluminum oxide, and the mass of the aluminum compound which is present in the positive bulk material mixture is 0.1 to 2% by weight relative to the mass of the nickel hydroxide which is present. In combination with aluminum hydroxide or aluminum oxide, the positive electrode further contains lanthanoid oxidic compounds Y.sub.2 O.sub.3, La.sub.2 O.sub.3 and Ca(OH).sub.2, as well as mixtures of these compounds.
- Research Organization:
- Varta Automotive Systems Gmbh,
- Sponsoring Organization:
- USDOE
- Assignee:
- Varta Automotive Systems Gmbh
- Patent Number(s):
- 6,881,519
- Application Number:
- 09/909,497
- OSTI ID:
- 1175324
- Country of Publication:
- United States
- Language:
- English
Effects on the Positive Electrode of the Corrosion of AB 5 Alloys in Nickel‐Metal‐Hydride Batteries
|
journal | February 1998 |
The electrochemical properties of the intercalation compounds cobalt hydroxide–aluminium hydroxide and nickel hydroxide–aluminium hydroxide
|
journal | January 1985 |
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