IP Library Granted Patent US 9,564,623
Granted Patent B2
US 9,564,623 · App. 11/535,701 · Granted Feb 7, 2017

Battery separator with a conductive layer for extending the cycle life of a battery

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Quick Facts
Patent No.
US 9,564,623
App. No.
11/535,701
Granted
Feb 7, 2017
Kind
B2
Abstract

A battery separator for extending the cycle life of a battery has a separator and a conductive layer. The conductive layer is disposed upon the separator. The conductive layer is adapted to be in contact with the positive electrode of the battery thereby providing a new route of current to and from the positive electrode.

Claims (19)

1. A battery separator for extending the cycle life of a lead-acid battery comprising:

a separator having ribs with tips; and

a conductive layer being disposed only on said tips, said conductive layer being made of a conductive material being selected from the group consisting of lead, gold, antimony, arsenic, tin, and combination alloys thereof, or carbon fibers, graphite, carbon nanotubes, and buckyballs;

whereby said conductive layer being configured to directly contact a positive electrode of the lead-acid battery thereby providing a route for current to and from said positive electrode when the conductive capability of a positive electrode conductor deteriorates, wherein the shape of said ribs being straight, angled or waved.

2. The battery separator of claim 1 where said conductive layer being strips.

3. The battery separator of claim 1 where said conductive layer being a screen.

4. The battery separator of claim 1 where said conductive layer being a foil.

5. The battery separator of claim 1 where said conductive layer being a thread.

6. The battery separator of claim 1 where said conductive layer being a wire.

7. The battery separator of claim 1 where said conductive layer being a coating.

8. The battery separator of claim 1 where said conductive layer being disposed upon said tips by adhesively bonding said conductive layer on said tips.

9. The battery separator of claim 1 where said conductive layer being disposed upon said tips by hot melting said conductive layer on said tips.

10. The battery separator of claim 1 where said conductive layer being disposed upon said tips by painting said conductive layer on said tips.

11. The battery separator of claim 1 , said conductive layer being lead.

12. The battery separator of claim 1 , said conductive layer being gold.

13. The battery separator of claim 1 , said conductive layer being antimony.

14. The battery separator of claim 1 , said conductive layer being carbon fibers, graphite, carbon nanotubes, or buckyballs.

15. The battery separator of claim 1 , said conductive layer being carbon fibers.

16. In a lead acid battery, the improvement comprising the battery separator of claim 1 .

Assignments (2)
TERMINATION AND RELEASE OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Aug 28, 2015
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: DARAMIC, LLC (F/K/A/ DARAMIC, INC.)
Reel/Frame 036502/0654 →
PATENT SECURITY AGREEMENT Recorded Apr 8, 2014
From: DARAMIC, LLC (F/K/A DARAMIC, INC.)
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 032631/0795 →