High performance lead acid battery with advanced electrolyte system

Patent metadata

Field	Value
Publication number	US-10355316-B2
Application number	US-201313942192-A
Country	US
Kind code	B2
Filing date	Jul 15, 2013
Priority date	Jul 17, 2012
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

Herein provided is an electrochemical cell electrolyte formed from ingredients comprising: water, sulfuric acid, and at least one octylphenol ethoxylate of Formula 1:

where n is a natural number from at least 1 to at most 16.

First claim

What is claimed is:

1. An electrochemical cell electrolyte formed from ingredients comprising: water, sulfuric acid, one or more sulfate salts, and at least one octylphenol ethoxylate of Formula 1:

where n is a natural number from at least 1 to at most 16, wherein the octylphenol ethoxylate is present at a concentration effective to substantially reduce hydrogen gas evolution when a lead-acid battery having the electrochemical cell electrolyte is subjected to an overpotential, and wherein the one or more sulfate salts of the electrochemical cell electrolyte consist of sodium sulfate, potassium sulfate, aluminum sulfate, cobalt sulfate, copper sulfate, magnesium sulfate, cadmium sulfate, or any combination thereof.

2. The cell electrolyte of claim 1 , where n is a natural number from at least 4 to at most 14.

3. The cell electrolyte of claim 1 , where n is a natural number from at least 7 to at most 12.

4. The cell electrolyte of claim 1 , where n is a natural number from at least 8 to at most 11.

5. The cell electrolyte of claim 1 , where the octylphenol ethoxylate concentration is at least 0.0005 wt % to at most 0.015 wt %.

6. The cell electrolyte of claim 1 , where the octylphenol ethoxylate concentration is at least 0.0010 wt % to at most 0.010 wt %.

7. The cell electrolyte of claim 1 , where the octylphenol ethoxylate concentration is at least 0.0014 wt % and at most 0.005 wt %.

8. The cell electrolyte of claim 1 , where the one or more sulfate salts of the electrochemical cell electrolyte consist of sodium sulfate or potassium sulfate, or a combination thereof.

9. A lead acid battery comprising a positive lead-based electrode, a negative lead-based electrode, and a cell electrolyte formed from ingredients comprising water, sulfuric acid, one or more sulfate salts, and at least one octylphenol ethoxylate of Formula 1:

where n is a natural number from at least 1 to at most 16, wherein the octylphenol ethoxylate is present at a concentration effective to substantially reduce hydrogen gas evolution when the lead acid battery is subjected to an overpotential, and wherein the one or more sulfate salts of the cell electrolyte consist of sodium sulfate, potassium sulfate, aluminum sulfate, cobalt sulfate, copper sulfate, magnesium sulfate, cadmium sulfate, or any combination thereof.

10. The lead acid battery of claim 9 , where the positive electrode is a PbO 2 electrode and the negative electrode is a sponge lead electrode.

11. The lead acid battery of claim 9 , where the positive lead-based electrode is a PbO 2 electrode and the negative lead-based electrode is a carbon-coated lead electrode.

12. The lead acid battery of claim 9 , wherein the negative lead-based electrode includes a first sponge lead negative electrode and a second carbon-coated lead negative electrode.

13. The lead acid battery of claim 9 , where the battery is a lead carbon hybrid battery.

14. The lead acid battery of claim 9 , where n is a natural number from at least 4 to at most 14.

15. The lead acid battery of claim 9 , where n is a natural number from at least 7 to at most 12.

16. The lead acid battery of claim 9 , where n is a natural number from at least 8 to at most 11.

17. The lead acid battery of claim 9 , where the octylphenol ethoxylate concentration is at least 0.0005 wt % to at most 0.015 wt %.

18. The lead acid battery of claim 9 , where the octylphenol ethoxylate concentration is at least 0.0010 wt % to at most 0.010 wt %.

19. The lead acid battery of claim 9 , where the octylphenol ethoxylate concentration is at least 0.0014 wt % and at most 0.005 wt %.

Assignees

• Johnson Controls Tech Co
• Cps Tech Holdings Llc

Inventors

• Loganathan Kavi Geetharani
• Jiang Junwei
• Wyatt Perry M

Classifications

• H01M2300/0011

  Sulfuric acid-based · CPC title

• H01M10/4235

  Safety or regulating additives or arrangements in electrodes, separators or electrolyte (H01M10/4242 takes precedence) · CPC title

• H01M10/08 Primary

  Selection of materials as electrolytes · CPC title

• H01M4/583

  Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title

• H01M4/14

  Electrodes for lead-acid accumulators · CPC title