EP2533864B1 - Agent d'extinction - Google Patents
Agent d'extinction Download PDFInfo
- Publication number
- EP2533864B1 EP2533864B1 EP10799020.2A EP10799020A EP2533864B1 EP 2533864 B1 EP2533864 B1 EP 2533864B1 EP 10799020 A EP10799020 A EP 10799020A EP 2533864 B1 EP2533864 B1 EP 2533864B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extinguishing agent
- water
- sparingly soluble
- lithium
- extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0064—Gels; Film-forming compositions
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/005—Dispersions; Emulsions
Definitions
- the present invention relates to a use of an extinguishing agent for fire fighting and fire prevention, especially in lithium-ion batteries.
- US2008176141 discloses a flame retardant polymer electrolyte composition comprising a modified maleimide, a lithium salt, and at least one ionic solution.
- the present polymer electrolyte composition serves as a flame retardant in lithium batteries. It is also known to use water as an extinguishing agent and to add thickening agents or so-called gel formers to the water in order to increase the viscosity. Water with increased viscosity or water in gel form has a better cooling performance.
- a lithium-ion cell means a galvanic element which contains at least one electrode which can reversibly remove or store lithium ions.
- extinguishing agent which is adapted to fire fighting in lithium-ion systems.
- Conventional extinguishing agents either have a too low cooling capacity, that is, they evaporate to a large extent ineffective, or they are not able to bind especially in lithium-ion systems escaping hazardous substances and thus prevent them from entering the environment.
- LiPF 6 lithium hexafluorophosphate
- phosphorus trifluoride (POF 3 ), phosphoric acid (H 3 PO 4 ) and hydrogen fluoride (HF) can arise. This species represents a great danger to humans and the environment.
- an extinguishing agent from a suspension comprising at least water, a sparingly water-soluble salt with an alkaline earth metal cation and a water thickening agent, for fire fighting and fire prevention, whereby a lithium-ion battery is extinguished.
- this extinguishing agent With the use according to the invention of this extinguishing agent, it is advantageously possible to prevent a fire on lithium-ion systems, or even to extinguish them after they have arisen.
- the sparingly soluble salt with an alkaline earth metal cation also binds phosphorus trifluoride, phosphoric acid and hydrogen fluoride.
- dissolved salts such as calcium chloride CaCl 2
- the suspended powder which is finely distributed in water, exerts no competing interaction with the gelling agent, which would reduce the cooling effect of the extinguishing agent.
- the water thickener causes an increase in viscosity and gelification of the liquid.
- the extinguishing agent according to the invention therefore has a gel-like consistency. This advantageously prevents ineffective evaporation of the water from impinging on a fire and at the same time the gelling agent itself and the sparingly soluble suspended powder in this gel-type extinguishing agent is stable and evenly distributed.
- the extinguishing agent according to the invention can be advantageously adapted to a particular application.
- a combination of a water-based gel extinguishing agent with a sparingly soluble salt with a cation based on calcium, magnesium or strontium, which with hydrogen fluoride (HF) to a water-insoluble fluoride salt is suitable to combat lithium-ion fires.
- the gel extinguishing agent provides sufficient cooling and the reactive salt chemically binds the hydrogen fluoride and other toxic species that may be formed.
- extinguishing agent according to the invention can also be used in a wide variety of extinguishing systems, for example in stationary high-pressure mist systems for lithium-ion test stands, hand-held fire extinguishers or transport containers from which extinguishing agents are dispensed in a hazardous situation.
- the calcium carbonate (CaCO 3 ) is the sparingly soluble salt with an alkaline earth metal cation.
- calcium carbonate or lime is advantageously used a comparatively inexpensive and environmentally friendly substance.
- Calcium carbonate binds hydrogen fluoride (HF) to form sparingly soluble calcium fluoride (CaF 2 ).
- the extinguishing agent with a proportion of between 5 wt.% And 30 wt.% Has the sparingly soluble salt.
- a quantity of the reactive, sparingly soluble salt is advantageously provided in the case of fire fighting or fire prevention, with which virtually all pollutants, such as hydrogen fluoride, can be bound.
- the sparingly soluble salt has an average particle size between 0.2 ⁇ m and 10 ⁇ m. This advantageously provides a grain size of the sparingly soluble salt with which the sparingly soluble salt has an optimally large surface in order to rapidly bind the harmful species by chemical reaction.
- the extinguishing agent used in the inventive use is based on water, as a base, a sparingly water-soluble salt with an alkaline earth metal cation, such as a carbonate to bind, for example, resulting hydrogen fluoride or phosphorus trifluoride (POF 3 ) by a chemical reaction, and on a thickener , whereby the extinguishing agent receives a higher viscosity and thus a gel-like consistency.
- a water-based gel has an increased cooling effect. This results from the fact that the water molecules are held in some degree by interaction with the gelling agent and can be separated only by additional energy supply.
- the thickener can be used as the thickener.
- the viscosity of the extinguishing agent according to the invention can be adapted to the respective application.
- protective layers of the extinguishing agent which are arranged as a precaution in containers for safety, have a greater viscosity in order to facilitate the handling of such containers, and sprayed extinguishing agent can be compared to obtain a lower viscosity to ensure good sprayability.
- salt with an alkaline earth metal cation lime, so calcium carbonate is preferably used.
- the mean grain diameter of the salt is between 0.2 ⁇ m and 10 ⁇ m, preferably 1 to 2 ⁇ m, and is added to the extinguishing agent in a proportion of between 5% by weight and 30% by weight, preferably 15% by weight.
- other salts with the cations magnesium (Mg), calcium (Ca), strontium (Sr) of the second main group of the periodic table are also provided, wherein Be is not suitable and Ba is too poisonous.
- the process according to the invention for producing the extinguishing agent will be described in more detail below.
- a viscous quenching gel eg Firesorp TM
- the extinguishing gel such as Firesorp TM dissolved in water (for example, 2%) and, for example, lime entered with a mean grain diameter of 2 microns (eg, 15 weight percent).
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dispersion Chemistry (AREA)
- Fire-Extinguishing Compositions (AREA)
Claims (4)
- Utilisation d'un agent d'extinction constitué d'une suspension, qui comprend au moins de l'eau, un sel peu soluble dans l'eau avec un cation à base de calcium, de magnésium ou de strontium et un agent d'épaississement de l'eau, pour la lutte contre le feu et la prévention des incendies, caractérisée en ce qu'une batterie lithium-ions est éteinte.
- Utilisation selon la revendication 1, le carbonate de calcium (CaCO3) étant le sel peu soluble.
- Utilisation selon la revendication 1 ou 2, l'agent d'extinction contenant le sel peu soluble dans une proportion comprise entre 5 % en poids et 30 % en poids.
- Utilisation selon l'une quelconque des revendications 1 à 3, le sel peu soluble présentant une taille de grain moyenne comprise entre 0,2 µm et 10 µm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010001741A DE102010001741A1 (de) | 2010-02-10 | 2010-02-10 | Löschmittel |
PCT/EP2010/070363 WO2011098188A1 (fr) | 2010-02-10 | 2010-12-21 | Agent d'extinction |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2533864A1 EP2533864A1 (fr) | 2012-12-19 |
EP2533864B1 true EP2533864B1 (fr) | 2016-03-16 |
Family
ID=43896814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10799020.2A Not-in-force EP2533864B1 (fr) | 2010-02-10 | 2010-12-21 | Agent d'extinction |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130207018A1 (fr) |
EP (1) | EP2533864B1 (fr) |
DE (1) | DE102010001741A1 (fr) |
WO (1) | WO2011098188A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012003017A1 (de) * | 2012-02-15 | 2013-08-22 | Key Safety Systems, Inc. | Brandvorbeugung oder Brandbeseitigung in einem elektrochemischen Energiespeicher |
DE102013215544A1 (de) | 2013-08-07 | 2015-02-12 | Robert Bosch Gmbh | Reinigungsmittel und/oder Verpackungsmittel |
KR102010012B1 (ko) | 2015-11-26 | 2019-08-12 | 주식회사 엘지화학 | 소화 장치가 포함된 배터리 팩 및 이를 이용한 제어 방법 |
CN110478842A (zh) * | 2019-06-28 | 2019-11-22 | 浙江南都电源动力股份有限公司 | 锂电用复合灭火剂 |
CN110433419B (zh) * | 2019-06-28 | 2021-09-07 | 浙江南都电源动力股份有限公司 | 锂电热失控火灾抑制胶囊及锂离子电池 |
CN110812765A (zh) * | 2019-11-14 | 2020-02-21 | 江苏佳泰消防科技有限公司 | 一种高分子凝胶超浓缩灭火剂及制备方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR85910E (fr) * | 1964-01-31 | 1965-11-05 | Soc Etu Chimiques Ind Et Agri | Nouveaux agents extincteurs |
US3877990A (en) * | 1973-07-02 | 1975-04-15 | Occidental Energy Dev Company | Method of slowing escape of chlorine from metal-chlorine battery |
GB2068725A (en) * | 1980-02-06 | 1981-08-19 | Total Foerstner Gmbh & Co | Fire-extinguishing powder composition |
DE3817859A1 (de) * | 1988-05-26 | 1989-11-30 | Kalk Chemische Fabrik Gmbh | Brandschutzmittel fuer bau- und grubenholz |
DE4012549A1 (de) * | 1990-04-19 | 1991-10-24 | Aquamot Ag | Verfahren zur bekaempfung und loeschung von braende und vorrichtung zu seiner duchfuehrung |
IL118088A0 (en) * | 1995-06-07 | 1996-08-04 | Anzon Inc | Colloidal particles of solid flame retardant and smoke suppressant compounds and methods for making them |
GB9828045D0 (en) * | 1998-12-18 | 1999-02-17 | Danionics As | Hydrofluoric acid scavenger |
DE10050181A1 (de) * | 2000-10-09 | 2002-04-25 | Peter Lell | Vorrichtung zum Bekämpfen von Brandherden |
DE602004006276T2 (de) * | 2003-07-23 | 2007-12-27 | Basf Ag | Mischung zur brandüberwachung und verfahren |
US7276640B2 (en) * | 2004-10-18 | 2007-10-02 | Nanoscale Corporation | Metal oxide nanoparticles for smoke clearing and fire suppression |
DE102004056830A1 (de) | 2004-11-24 | 2006-06-08 | Basf Ag | Brandlöschende und/oder brandhemmende Zusammensetzungen |
DE102005023800A1 (de) * | 2005-05-19 | 2006-11-23 | Basf Ag | Verwendung von wässrigen Dispersionen von wasserlöslichen und/oder in Wasser quellbaren Polymeren in Löschmitteln und Verfahren zur Bekämpfung von Bränden |
NO323306B1 (no) * | 2005-09-28 | 2007-03-05 | Thermos As | Brannslukningsmiddel, fremgangsmate til dets fremstilling samt fremgangsmate ved slukking av brann |
TWI338964B (en) * | 2006-12-25 | 2011-03-11 | Ind Tech Res Inst | A flame retardant-type polymer electrolyte composition containing maleimides |
CN101106185A (zh) * | 2007-09-04 | 2008-01-16 | 北京中润恒动电池有限公司 | 高安全性锂离子动力电池及其装配方法 |
DE102008001707A1 (de) * | 2008-05-09 | 2009-11-12 | Robert Bosch Gmbh | Energiewandler- und/oder Energiespeichervorrichtung mit fluorabsorberierender Ummantelung |
DE102008040863A1 (de) * | 2008-07-30 | 2010-02-04 | Robert Bosch Gmbh | Vorrichtung zur Erzeugung oder Speicherung elektrischer oder mechanischer Energie und Verfahren zur Brandvermeidung |
DE102009035908A1 (de) * | 2009-08-03 | 2011-02-10 | Robert Bosch Gmbh | Verfahren zur Bekämpfung und/oder Vorbeugung eines Brandes von Lithium-Ionen-Zellen und Lithium-Ionen-Polymer-Zellen |
-
2010
- 2010-02-10 DE DE102010001741A patent/DE102010001741A1/de not_active Withdrawn
- 2010-12-21 EP EP10799020.2A patent/EP2533864B1/fr not_active Not-in-force
- 2010-12-21 US US13/578,087 patent/US20130207018A1/en not_active Abandoned
- 2010-12-21 WO PCT/EP2010/070363 patent/WO2011098188A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102010001741A1 (de) | 2011-08-11 |
WO2011098188A1 (fr) | 2011-08-18 |
US20130207018A1 (en) | 2013-08-15 |
EP2533864A1 (fr) | 2012-12-19 |
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