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.
Claims27
A rechargeable battery cell comprising:
- an anode comprising a plurality of particles comprising zinc (Zn);
- an ion exchange material in a form of a layer arranged to define an interpenetrating interface with at least a portion of the anode, thereby at least partially embedding the anode in the ion exchange material, wherein:
- the interpenetrating interface is formed by one or more of melting, fusing, laminating, or pressure attachment of the ion exchange material, in the form of the layer, with the anode,
- the ion exchange material comprises 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
- the ion exchange material, in the form of the layer, contacts at least a portion of the plurality of particles of the anode;
- a cathode, wherein the ion exchange material is positioned and provides ionic conductivity between the anode and the cathode;
- and
- a liquid alkaline electrolyte contacting the anode and the cathode and providing ionic conductivity between the anode and the cathode.
Dependencies are inferred from the claim text.