# US 10,119,025 B2 · Separators, batteries, systems, and methods for idle start stop vehicles

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,119,025 B2
- Document ID: US10119025B2
- Status: Granted
- Kind: B2
- Application number: 13/239,483
- Filed: 2011-09-22
- Published: 2012-03-22
- Granted: 2018-11-06
- Earliest claimed: 2010-09-22
- Assignees: Daramic, LLC
- Applicants: J. Kevin Whear; John R. Timmons; Jeffrey K. Chambers; Tejas R. Shah
- Inventors: J. Kevin Whear; John R. Timmons; Jeffrey K. Chambers; Tejas R. Shah
- Web page: https://patentgrep.com/patent/US10119025B2

## CPC

- C08L 89/00: Compositions of proteins; Compositions of derivatives thereof
- H01M 10/10: Immobilising of electrolyte
- H01M 50/406: Moulding; Embossing; Cutting
- H01M 50/417: Polyolefins
- H01M 50/44: Fibrous material
- H01M 50/463: Separators, membranes or diaphragms characterised by their shape
- H01M 50/429: Natural polymers
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## 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

### Claim 1

A lead acid battery separator comprising a microporous membrane comprising polymer, oil, and a filler, said filler comprising silica and at least one phosphate induced metal stabilization (PIMS) mineral for reducing the lead concentration in the acid of the battery, the PIMS mineral comprises hydroxyapatite, the filler comprises 5-30% of hydroxyapatite, and the PIMS mineral is extruded with the polymer and the silica to polymer ratio is from 3.0/1.0 to 5.0/1.0.

### Claim 2 (depends on 1)

The battery separator according to claim 1, wherein the phosphate induced metal stabilization mineral further comprises apatite, ground fish meal, fish bone powder, zeolite, or a mixture thereof.

### Claim 3 (depends on 2)

The battery separator according to claim 2, wherein the phosphate induced metal stabilization mineral comprises fish bone powder.

### Claim 4 (depends on 3)

The battery separator according to claim 3, wherein the filler comprises 1-20% of fish bone powder.

### Claim 5 (depends on 2)

The battery separator according to claim 2, wherein the phosphate induced metal stabilization mineral comprises ground fish meal.

### Claim 6 (depends on 5)

The battery separator according to claim 5, wherein the filler comprises 5-30% of ground fish meal.

### Claim 7 (depends on 1)

The battery separator according to claim 1, wherein the polymer comprises polyethylene.

### Claim 8 (depends on 1)

The battery separator according to claim 1, wherein the silica has a surface area greater than 200 g/m2.

### Claim 9 (depends on 1)

The battery separator according to claim 1, wherein the battery separator is selected from the group consisting of a deep cycle separator, an ISS separator, and a micro-hybrid separator, which separator comprises at least two of the following: features that help minimize acid stratification, that occupies approximately 15% less volume than traditional separators, has negative cross ribs, has a multitude of small mini-ribs in the horizontal direction, has a mechanical barrier that will hinder an acid gradient from developing, has hundreds of mini dams to keep heavier acid from flowing downward, has hundreds of mini dams which create hundreds of mini pools of acid uniformly across the surface of the electrode, and that improves power delivery and reduces acid stratification in micro-hybrid batteries.

### Claim 10 (depends on 1)

The battery separator according to claim 1, wherein the battery separator is an ISS battery separator having multiple separator properties of improved charge acceptance, improved power delivery, reduced hydration shorts, improved cycle life, and reduced acid stratification optimized simultaneously.

### Claim 11 (depends on 1)

The battery separator according to claim 1, wherein said separator is a laminate or composite separator comprising a nonwoven layer, said nonwoven layer comprising glass fibers, polymeric fibers, or a combination thereof.