IP Library Granted Patent US 11,976,197
Granted Patent B2
US 11,976,197 · App. 17/463,116 · Granted May 7, 2024

Separators, batteries, systems, and methods for idle start stop vehicles

Inventors: J. Kevin Whear (Utica, KY); John R. Timmons (Owensboro, KY); Jeffrey K. Chambers (Piney Flats, TN); Tejas R. Shah (Burlington, MA)
Assignee: Daramic, LLC
C08L89/00H01M10/10H01M50/406H01M50/417H01M50/44H01M50/463H01M50/429Y02E60/10Y02T10/70
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,976,197
App. No.
17/463,116
Granted
May 7, 2024
Kind
B2
Abstract

In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or high performance ISS lead acid battery separators, such as improved ISS flooded lead acid battery separators, ISS batteries including such separators, methods of production, and/or methods of use. The preferred ISS separator may include negative cross ribs and/or PIMS minerals. In accordance with more particular embodiments or examples, a PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.

Claims (5)

1. An ISS battery separator having negative cross ribs, a silica to polymer ratio from greater than 3:1 to 5:1, latex, or rubber, wherein fish bone powder is added as a substitute for a portion of the silica at a substitution level from 1% to 20% of the silica or ground fish meal is added as a substitute for a portion of the silica at a substitution level from 5% to 30% of the silica.

2. The ISS battery separator of claim 1 , having both fish bone powder and ground fish meal.

3. The ISS battery separator of claim 2 , wherein the polymer is polyethylene.

4. In a flooded lead acid battery, the improvement comprising the ISS battery separator of claim 1 .

5. In an ISS electrical system, the improvement comprising the battery of claim 4 .

Assignments (2)
ASSIGNMENT OF SECURITY INTERESTS IN PATENT COLLATERAL Recorded Apr 22, 2026
From: ENCINA PRIVATE CREDIT SPV 2, LLC, AS RESIGNING AGENT
To: ACF FINCO I LP, AS SUCCESSOR AGENT
Reel/Frame 075435/0811 →
SHORT-FORM PATENTS SECURITY AGREEMENT Recorded Jan 12, 2026
From: DARAMIC, LLC
To: ENCINA PRIVATE CREDIT SPV 2, LLC, AS COLLATERAL AGENT
Reel/Frame 074315/0795 →