Flowing electrolyte battery separator
AssigneeRedFlow R&D Pty Ltd
InventorAlexander Rudolf Winter
Life of this patent
Estimating the term…
Abstract
A separator for a flowing electrolyte battery, and a method of forming such a separator, enable improved efficiency in a flowing electrolyte battery. The separator includes a sheet having a first surface and a second surface opposing the first surface. A first spacer element is disposed on the first surface, and a second spacer element is disposed on the second surface. The first spacer element is wider than the second spacer element in a direction that is both parallel to the first and second surfaces and perpendicular to longitudinal axes of the first and second spacer elements.
Claims5
A method of forming a separator for a flowing electrolyte battery, the method comprising:
- positioning a first plurality of spacing ribs in a plurality of channels of a first portion of a clamping device;
- positioning a second plurality of spacing ribs in a plurality of channels of a second portion of the clamping device, wherein the ribs of the first plurality of spacing ribs have a different width than the ribs of the second plurality of spacing ribs;
- positioning a separator sheet between the first and second portions of the clamping device;
- clamping the first and second portions of the clamping device together, whereby the first plurality of spacing ribs are on a first side of the separator sheet and lie centrally in footprints of the second plurality of spacing ribs on a second side of the separator sheet;
- extending an ultrasonic welding device through a plurality of slots in the first portion of the clamping device, wherein the slots overlap the channels of the first portion such that the welding device contacts the first plurality of spacing ribs;
- and
- applying ultrasonic vibration to the welding device to simultaneously bond both the first and second plurality of spacing ribs to the separator sheet.
Dependencies are inferred from the claim text.