Absorbent glass mat battery

Patent metadata

Field	Value
Publication number	US-12288897-B2
Application number	US-202418405603-A
Country	US
Kind code	B2
Filing date	Jan 5, 2024
Priority date	Jun 9, 2017
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

A lead-acid battery is disclosed. The lead-acid storage battery has a container with a cover, the container including one or more compartments. One or more cell elements are provided in the one or more compartments. The one or more cell elements include a positive plate, the positive plate having a positive grid and a positive electrochemically active material on the positive grid; a negative plate, the negative plate having a negative grid and a negative electrochemically active material on the negative grid, wherein the negative electrochemically active material comprises barium sulfate and an organic expander; and a separator between the positive plate and the negative plate. Electrolyte is provided within the container. One or more terminal posts extend from the cover and are electrically coupled to the one or more cell elements.

First claim

The invention claimed is:

1. A lead-acid storage battery comprising:
a container with a compartment;
a cell element in the compartment, the cell element comprising:
a positive plate;
a negative plate, the negative plate having a negative electrochemically active material, the negative electrochemically active material having fine particle size barium sulfate, and a carbon, with the carbon comprising one or more selected from natural and synthetic carbons having a high aspect ratio in relation to a length of the respective carbons, with 0.01 to 0.1 percent by weight of the carbon having a high aspect ratio; and
an absorbent glass mat separator between the positive plate and the negative plate;

electrolyte within the container; and
one or more terminal posts extending from one or more of the container or a cover of the container, and electrically coupled to the one or more cell elements.

2. The lead-acid storage battery of claim 1 , wherein the positive plate has a positive grid and a positive electrochemically active material on the positive grid.

3. The lead-acid storage battery of claim 2 , wherein at least one of the positive electrochemically active material and the negative electrochemically active material has a bimodal particle size distribution of oxide.

4. The lead-acid storage battery of claim 1 , wherein the negative plate has a negative grid, with the negative electrochemically active material positioned on the negative grid, the negative electrochemically active material further comprising an organic expander with the organic expander being a wood chemical.

5. The lead-acid storage battery of claim 1 , further comprising the carbon selected from a group consisting of activated carbon, high surface area conductive carbon black, and graphene.

6. The lead-acid storage battery of claim 1 , wherein the electrolyte comprises a sulfuric acid solution including one or more metal sulfates, wherein the metal sulfates are soluble metal sulfates selected from the group consisting of elements Al, Mg, Na, K, Li, and Zn.

7. The lead-acid storage battery of claim 1 , further comprising an additional separator between the positive plate and the negative plate.

8. The lead-acid storage battery of claim 1 , further comprising a pasting paper.

9. A lead-acid storage battery comprising:
a container with a cover, the container including one or more compartments;
one or more cell elements in the one or more compartments, the one or more cell elements comprising:
a positive plate; and
a negative plate, the negative plate having a negative grid and a negative electrochemically active material on the negative grid, the negative electrochemically active material having fine particle size barium sulfate, and conductive carbon having a high surface area and extended linear structure, with 0.01 to 0.1 percent by weight of the conductive carbon being the conductive carbon having the high surface area and the extended linear structure;
an electrolyte; and

one or more terminal posts extending from the container or the cover and electrically coupled to the one or more cell elements.

10. The lead-acid storage battery of claim 9 , wherein the positive plate has a positive grid and a positive electrochemically active material on the positive grid.

11. The lead-acid storage battery of claim 10 , wherein at least one of the positive electrochemically active material and the negative electrochemically active material has a bimodal particle size distribution of oxide.

12. The lead-acid storage battery of claim 9 , wherein the negative electrochemically active material further comprising an organic expander with the organic expander being a wood chemical.

13. The lead-acid storage battery of claim 9 , wherein the conductive carbon is selected from a group consisting of activated carbon, high surface area conductive carbon black, natural or synthetic graphite and graphene.

14. The lead-acid storage battery of claim 9 , wherein the electrolyte comprises a sulfuric acid solution including one or more metal sulfates, wherein the metal sulfates are soluble metal sulfates selected from the group consisting of elements Al, Mg, Na, K, Li, and Zn.

15. The lead-acid storage battery of claim 9 , further comprising an additional separator between the positive plate and the negative plate.

16. The lead-acid storage battery of claim 9 , further comprising a pasting paper.

17. A lead-acid storage battery comprising:
a container with a cover, the container including one or more compartments;
one or more cell elements in the one or more compartments, the one or more cell elements comprising:
a positive plate, the positive plate having a positive grid and a positive electrochemically active material on the positive grid;
a negative plate, the negative plate having a negative grid and a negative electrochemically active material on the negative grid;
the negative electrochemically active material having carbons, including a plurality of large-scale carbon structures with a high surface area, with 0.01 to 0.1 percent by weight of the carbons being the plurality of large-scale carbon structures with the high surface area, and fine particle size barium sulfate; and
an absorbent glass mat separator between the positive plate and the negative plate;

electrolyte within the container, wherein the electrolyte comprises a sulfuric acid solution; and
one or more terminal posts extending from the container or the cover and electrically coupled to the one or more cell elements.

18. The lead-acid storage battery of claim 17 , further comprising carbons selected from a group consisting of activated carbon, high surface area conductive carbon black, natural or synthetic graphite, and graphene.

19. The lead-acid storage battery of claim 17 , wherein the sulfuric acid solution includes one or more metal sulfates, wherein the metal sulfates are soluble metal sulfates selected from the group consisting of elements Al, Mg, Na, K, Li, and Zn.

20. The lead-acid storage battery of claim 17 , wherein at least one of the positive electrochemically active material and the negative electrochemically active material has a bimodal particle size distribution of oxide.

Assignees

• Cps Tech Holdings Llc
• Clarios Germany Gmbh & Co Kg

Inventors

• Johns Frank-Thomas
• Bitomsky Uwe
• Dudenbostel Andreas
• Spence Matthew A
• Loganathan Kavi G
• Shi Qingfang
• Brendel Cornelia

Classifications

• H01M50/431

  Inorganic material · CPC title

• H01M50/543

  Terminals · CPC title

• H01M50/437

  Glass · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M2300/0011

  Sulfuric acid-based · CPC title