Safety system for batteries

Patent metadata

Field	Value
Publication number	US-9761912-B2
Application number	US-201214374387-A
Country	US
Kind code	B2
Filing date	Dec 3, 2012
Priority date	Jan 24, 2012
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A battery, particularly a lithium-metal battery or a lithium-ion battery, having at least one galvanic cell surrounded by a cell housing. To increase the safety of the battery and to close up again a cell opened by a safety device or by a leakage, the inner chamber of the cell housing of the at least one cell includes a first chemical component, a chamber bordering on at least one section of the outer side of the housing including a second chemical component; a solid reaction product being developable by the chemical reaction of the first and second chemical components. The first component is containable in the electrolyte of the cell and the second component in a cooling and/or tempering arrangement. Also described is a cooling and/or tempering arrangement based on it, and an electrolyte, an electrolytic liquid, a safety system, a method and a mobile or stationary system.

First claim

What is claimed is:

1. A battery, comprising:
a cell housing; and
at least one galvanic cell surrounded by the cell housing;
wherein an inner chamber of the cell housing of the at least one cell includes a first chemical component,
wherein a chamber, which borders on at least one section of the outside of the cell housing of the at least one cell, includes a second chemical component, and
wherein by a chemical reaction of the first chemical component with the second chemical component, a solid reaction product is formed.

2. The battery of claim 1 , wherein the at least one cell includes an electrolytic liquid, and the first chemical component is contained in the electrolytic liquid.

3. The battery of claim 1 , further comprising:
at least one of a cooling arrangement and a tempering arrangement, wherein the second chemical component is contained in the at least one of a cooling arrangement and a tempering arrangement.

4. The battery of claim 1 , wherein the chamber bordering on at least one section of the outside of cell housing of the at least one cell is configured to convey the cooling and/or tempering arrangement.

5. The battery of claim 1 , wherein the cell housing of the at least one cell has a safety device, by which the housing is open-able in case of an overpressure in the inner chamber of the housing.

6. The battery of claim 1 , wherein the battery has a battery housing and within the battery housing is a plurality of galvanic cell, which are each surrounded by a cell housing, and wherein between the outsides of the cell housings and the inside of the battery housing a chamber is configured for conveying a cooling and/or tempering arrangement, the chamber partially or completely surrounding the cell housing and including the second chemical component.

7. The battery of claim 1 , wherein the chemical reaction is one of a polyreaction or a precipitation reaction.

8. The battery of claim 1 , wherein the chemical reaction is one of a radical cationic an an anionic polymerization reaction, wherein the first component includes one of a radical polymerization starter, a cationic polymerisation starter, and an anionic polymerisation starter, and wherein the second component includes at least one monomer that is polymerizable by a radical or cationic or anionic polymerization reaction.

9. The battery of claim 1 , wherein the chemical reaction is a polycondensation reaction, and wherein one of the following is satisfied:
(i) the first component includes a phenol and the second component includes an aldehyde, or vice versa;
(ii) the first component includes a dicarboxylic acid and the second component includes a diol, a triol, or a polyol, or vice versa; and
(iii) the first component includes a dicarboxylic acid and the second component includes a diamine, or vice versa.

10. The battery of claim 1 , wherein the chemical reaction is a polyaddition reaction, and wherein the first component includes an isocyanate and the second component includes a diol or a triol or a polyol, or vice versa.

11. The battery of claim 1 , wherein the chemical reaction is a precipitation reaction, and wherein the first component includes a chloride, sulfide and/or carbonate that is soluble and the second component includes a metal salt that is soluble, or vice versa.

12. The battery of claim 1 , wherein the battery includes a lithium-metal battery or a lithium-ion battery.

13. The battery of claim 1 , wherein the chamber bordering on at least one section of the outside of cell housing of the at least one cell is configured to convey the cooling and/or tempering arrangement, and wherein the cell housing of the at least one cell is partially or completely surrounded by the chamber for conveying the cooling and/or tempering arrangement.

14. The battery of claim 1 , wherein the chemical reaction is one of (i) a precipitation reaction and (ii) one of a polymerization reaction, a polycondensation reaction, a polyaddition reaction.

15. The battery of claim 1 , wherein the chemical reaction is one of a radical cationic an an anionic polymerization reaction, wherein the first component includes a radical polymerization starter, especially dibenzoyl peroxide and/or diacetyl peroxide, or a cationic polymerisation starter, especially tetrafluoroboric acid, or an anionic polymerisation starter, particularly a lithium organyl, and wherein the second component includes at least one monomer that is able to be polymerized by a radical or cationic or anionic polymerization reaction, particularly propylene, styrene, aniline, vinyl chloride and/or vinyl carbonate, or vice versa.

16. The battery of claim 1 , wherein the chemical reaction is a precipitation reaction, and wherein the first component includes a chloride, sulfide and/or carbonate that is soluble in the electrolytic liquid and the second component includes a metal salt that is soluble, or vice versa.

17. The battery of claim 1 , wherein the first chemical component dissolved in a solvent, and is selected from the group made up of chlorides, sulfides, carbonates, metal salts, radical polymerization starters, particularly dibenzoyl peroxide and/or diacetyl peroxide, cationic polymerization starters, particularly tetrafluoroboric acid, anionic polymerization starters, particularly lithium organyls, monomers able to be polymerized by radical or cationic or anionic polymerization reaction, particularly propylene, styrene, aniline, vinyl chloride and/or vinyl carbonate, phenols, aldehydes, dicarboxylic acids, polyols, diamines, and isocyanates.

18. The battery of claim 1 , wherein the first chemical component dissolved in a solvent, and is selected from the group made up of chlorides, sulfides, carbonates, metal salts, radical polymerization starters, particularly dibenzoyl peroxide and/or diacetyl peroxide, cationic polymerization starters, particularly tetrafluoroboric acid, anionic polymerization starters, particularly lithium organyls, monomers able to be polymerized by radical or cationic or anionic polymerization reaction, particularly propylene, styrene, aniline, vinyl chloride and/or vinyl carbonate, phenols, aldehydes, dicarboxylic acids, diols, triols, polyols, diamines, and isocyanates.

Assignees

• Tenzer Martin
• Grimminger Jens
• Fanous Jean
• Wegner Marcus
• Bosch Gmbh Robert

Inventors

• Tenzer Martin
• Grimminger Jens
• Fanous Jean
• Wegner Marcus

Classifications

• H01M10/6567

  Liquids · CPC title

• H01M10/052

  Li-accumulators · CPC title

• Y02T10/7011

  Cross-Sectional Technologies · mapped topic

• H01M2300/00

  Electrolytes · CPC title

• H01M10/056

  characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes · CPC title