Electrode Assemblies Incorporating Ion Exchange Materials
AssigneeZelos Energy Ltd.
InventorsJoseph Collin Farmer, Pavel Khokhlov, Alexander Gorer
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Abstract
A rechargeable battery cell includes an electrode and an ion exchange material arranged to define an interpenetrating interface with at least a portion of the electrode. Providing an interpenetration interface in intimate contact can include completely or partially embedding the electrode in the ion exchange material, or alternatively, surrounding the electrode or discrete portions of the electrode with a thin film of ion exchange material. In one embodiment, electrodes can be particles fully or partially embedded, coated with, or partially contacting ion exchange material.
Claims20
A rechargeable battery cell comprising:
- a negative electrode comprising zinc in a form of particles;
- a positive electrode comprising one or more materials selected from the group consisting of nickel hydroxide (Ni (OH)2), nickel oxyhydroxide (NiOOH), manganese dioxide (MnO2), a ferrate salt (Fe(VI)), a manganate salt (Mn (VI)), and a permanganate salt (Mn (VII));
- an ion exchange membrane positioned and providing ionic conductivity between the negative electrode and the positive electrode and comprising a polymeric material and one or more groups, attached to the polymeric material, and selected from the group consisting of a sulfonic acid, a quaternary amino group, a carboxylic acid group, a primary amino group, a secondary amino group, and a tertiary amino group;
- and
- a liquid alkaline electrolyte contacting the negative electrode, the positive electrode, and the ion exchange membrane, and providing ionic conductivity between the negative electrode and the ion exchange membrane and between the positive electrode and the negative electrode.
Dependencies are inferred from the claim text.