CN109065768A - A kind of Multicarity battery and battery pack - Google Patents

A kind of Multicarity battery and battery pack Download PDF

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Publication number
CN109065768A
CN109065768A CN201810948812.7A CN201810948812A CN109065768A CN 109065768 A CN109065768 A CN 109065768A CN 201810948812 A CN201810948812 A CN 201810948812A CN 109065768 A CN109065768 A CN 109065768A
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CN
China
Prior art keywords
battery
cavity
multicarity
flame retardant
liquid flame
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.)
Pending
Application number
CN201810948812.7A
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Chinese (zh)
Inventor
曾庆程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bong Tai Hon Tu (shenzhen) Science And Technology LLC
Original Assignee
Bong Tai Hon Tu (shenzhen) Science And Technology LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bong Tai Hon Tu (shenzhen) Science And Technology LLC filed Critical Bong Tai Hon Tu (shenzhen) Science And Technology LLC
Priority to CN201810948812.7A priority Critical patent/CN109065768A/en
Publication of CN109065768A publication Critical patent/CN109065768A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • H01M50/342Non-re-sealable arrangements
    • H01M50/3425Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • H01M50/375Vent means sensitive to or responsive to temperature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention provides a kind of Multicarity batteries, including Battery case and battery box cover, it is tightly connected between Battery case and battery box cover, the Battery case is internally provided with multiple cavities, battery core is placed in the cavity of part, liquid flame retardant is placed in remaining cavity, wherein, it is described any one be placed with battery core cavity it is adjacent with the cavity that one of them is placed with liquid flame retardant and formed one connection side wall, the connection side wall up to being provided with an explosion-proof valve less, it is connected to when thermal failure occurs for battery core by the explosion-proof valve and places the cavity of battery core and place the cavity of liquid flame retardant so that liquid flame retardant enters in the cavity for placing battery core.The present invention can be rapidly cooled and cool down to battery when thermal failure occurs for battery, guarantee the safety of battery.

Description

A kind of Multicarity battery and battery pack
Technical field
The invention belongs to battery safety management technical field more particularly to a kind of Multicarity battery and battery packs.
Background technique
In recent years, increasingly extensive with battery applications, the example that safety accident occurs for battery is also commonplace.
By taking lithium ion battery as an example.Lithium battery in Charging state inside put aside huge energy, once work as lithium battery institute When the control such as the environment temperature at place is improper or internal short-circuit occurs, the accidents such as explosion, kindling easily occur for lithium battery.If not taking When accident occurs for appropriate one battery of measure, other neighbouring batteries can be involved, cause fire spreading, then cause bigger thing Therefore.
Summary of the invention
The embodiment of the present invention provides a kind of Multicarity battery, it is intended to it solves to cool down to battery under battery superheat state, The chemical property of battery is not influenced again simultaneously.
The embodiments of the present invention are implemented as follows, a kind of Multicarity battery, including Battery case and battery box cover, battery case It being tightly connected between body and battery box cover, the Battery case is internally provided with multiple cavities, it is placed with battery core in the cavity of part, Liquid flame retardant is placed in remaining cavity, wherein any one described cavity for being placed with battery core is placed with one of them The cavity of liquid flame retardant is adjacent and forms a connection side wall, and the connection side wall up to an explosion-proof valve is provided with less, in electricity It is connected to when thermal failure occurs for core by the explosion-proof valve and places the cavity of battery core and place the cavity of liquid flame retardant so that liquid Fire retardant enters in the cavity for placing battery core.
Further, the liquid flame retardant is water or anti-icing fluid.
Further, the liquid flame retardant is the water or anti-icing fluid added with inorganic salts.
Further, the explosion-proof valve is a metallic film.
Further, the metallic film is formed by way of mechanical score, laser-induced thermal etching, chemical etching or welding.
Further, the segment space of the cavity of liquid flame retardant is placed with described in the liquid flame retardant filling.
Further, the cross section of the cavity is quadrangle, wherein the connecting side where at least one side of quadrangle Wall is equipped with the explosion-proof valve.
Further, the cavity for placing battery core is staggered with the cavity for placing liquid flame retardant.
Further, the explosion-proof valve is positioned close to the position of the Battery case bottom.
The embodiments of the present invention also provide a kind of battery pack, the battery pack includes above-mentioned at least two Multicarities electricity Pond.
Multicarity battery of the invention, is arranged a plurality of cavities in Battery case, and each cavity forms a cavity, passes through To placing battery core in the cavity of part, to placing liquid flame retardant in remaining cavity, and in battery core cavity and liquid flame retardant cavity Explosion-proof valve is set on the adjacent connection side wall formed, explosion-proof valve automatically opens when thermal failure occurs for battery core, makes liquid flame retardant Liquid flame retardant in cavity flows into adjacent battery core cavity by explosion-proof valve, so that effective temperature-reducing is carried out to battery battery core, from And the chain reaction of the thermal failure of battery is influenced, play the role of improving battery security.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of Multicarity battery of the present invention.
Fig. 2 is a kind of schematic diagram of internal structure of embodiment of battery case of Multicarity battery of the present invention.
Fig. 3 is Multicarity battery portion structure perspective diagram of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The present invention provides a kind of Multicarity battery of embodiment, including Battery case and battery box cover, Battery case and electricity It is tightly connected between the case lid of pond, the Battery case is internally provided with multiple cavities, and battery core, remaining chamber are placed in the cavity of part It is placed with liquid flame retardant in vivo, wherein any one described cavity for being placed with battery core is placed with liquid resistance with one of them The cavity of combustion agent is adjacent and forms a connection side wall, and the connection side wall occurs up to an explosion-proof valve is provided with less in battery core It is connected to when thermal failure by the explosion-proof valve and places the cavity of battery core and place the cavity of liquid flame retardant so that liquid flame retardant Into in the cavity for placing battery core, that is to say, that the explosion-proof valve is used to automatically open and be connected to when thermal failure occurs for battery core It places the cavity of battery core and places the cavity of liquid flame retardant.
As shown in Figure 1, the structural schematic diagram of the Multicarity battery of an embodiment of the present invention, the Multicarity battery include Battery case 20 and battery box cover 10, the battery box cover 10 are fastened on the Battery case 20: Battery case 20 and battery Case lid 10 directly seals close connection, and the battery box cover 10 is equipped with positive terminal 30 and negative terminal 40, the Multicarity Battery is powered by positive terminal 30 and negative terminal 40 to external device (ED), such as gives electric tool, electric car, luminaire It is powered.
As shown in connection with fig. 2, multiple cavities, each cavity tool are equipped with inside the Battery case 20 of Multicarity battery of the invention There is a cavity, is set inside the Battery case 20 in the present embodiment there are four cavity, the first cavity 21, the second cavity 22, third Cavity 23 and the 4th cavity 24 form multiple connection side walls 25 between the two neighboring cavity, wherein the second cavity 22 and Battery core 50 is equipped in four cavitys 24 respectively, is respectively provided with liquid flame retardant 60 in first cavity 21 and third cavity 23. Certainly, Multicarity battery of the invention is not limited to shape shown in Fig. 2, can be cylindrical body, other polygonal bodies.Institute 20 internal cavity of Battery case stated be it is multiple, particular number be also not limited to only there are four, can be other quantity, but fill Have the cavity of battery core with equipped with liquid flame retardant cavity needs be staggered, i.e., so that it is described any one be placed with battery core Cavity is adjacent with the cavity that one of them is placed with liquid flame retardant and forms a connection side wall.
The shape of the Multicarity battery and the concrete shape of the cavity can be carried out according to the concrete application of battery Setting.The liquid flame retardant 60 can be water or anti-icing fluid, or the water or anti-icing fluid of inorganic salts is added, it is described inorganic Salt is one or more of chlorate, sulfate, calcium chloride, magnesium chloride, sodium nitrate, sodium nitrite etc..
It as shown in connection with fig. 3, is the perspective view of two neighboring cavity in Fig. 2, in Fig. 3, the first cavity 21 and the second cavity 22 is adjacent and form connection side wall 25, and the connection side wall is equipped with explosion-proof valve 70.In the present embodiment, the cavity is preferably four Side shape cylinder, the cross section of the cavity are quadrangle, and the connection side wall 25 just forms a line of the quadrangle, On connection side wall where this side, the explosion-proof valve 70 can be set multiple, and explosion-proof valve 70 can be uniformly arranged on the company It connects on side wall, it can also be with concentrated setting on a certain position of connection side wall.
In the present embodiment, the explosion-proof valve 70 is preferably a metallic film, which is lost by mechanical score, laser The mode at quarter, chemical etching or welding is formed.It, can due to the intracorporal imbalance of pressure of chamber when battery once thermal failure reaction occurs Explosion-proof valve is caused to be first turned on, directly cavity of the connection equipped with battery core is then equipped with liquid with equipped with the cavity of liquid flame retardant The intracorporal liquid fire proofing of the chamber of fire retardant will enter the cavity equipped with battery core by explosion-proof valve, by liquid flame retardant to electricity Core cooling, to effectively influence the thermal failure chain reaction of battery, is played and is changed so that the temperature for reducing entire inside battery can be realized The effect of kind battery security, ensures the working performance and safety of battery.
Further, when battery overheat occurs, in order to which the cooling to Multicarity battery for effectively enhancing the present embodiment is cold But effect, the position of the explosion-proof valve 70 is as close as possible to 20 bottom of Battery case, when battery once thermal failure reaction occurs When explosion-proof valve 70 being caused to be opened, more liquid flame retardants can be effectively ensured and be flowed into the cavity equipped with battery core, thus into The cooling effect when enhancing of one step overheats battery.
Liquid flame retardant 60 described in the present embodiment can't fill entire cavity, i.e., the described liquid flame retardant fills institute The segment space for being placed with the cavity of liquid flame retardant is stated, expand with heat and contract with cold causes between Battery case 20 and case lid 10 in order to prevent Swelling fracture and leakage.
The Multicarity battery of the present embodiment is preferably lithium battery, or the new energy such as ferric phosphate lithium cell, ternary battery Source battery.
The embodiments of the present invention also provide a kind of battery pack, the battery pack includes at least two above-mentioned Multicarity electricity Pond.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of Multicarity battery, including Battery case and battery box cover, are tightly connected between Battery case and battery box cover, Be characterized in that: the Battery case is internally provided with multiple cavities, and battery core is placed in the cavity of part, is placed in remaining cavity Liquid flame retardant, wherein any one described cavity for being placed with battery core is placed with the cavity of liquid flame retardant with one of them Adjacent and one connection side wall of formation, the connection side wall lead to up to an explosion-proof valve is provided with less when thermal failure occurs for battery core The explosion-proof valve connection is crossed to place the cavity of battery core and place the cavity of liquid flame retardant so that liquid flame retardant enters placement electricity In the cavity of core.
2. Multicarity battery as described in claim 1, it is characterised in that: the liquid flame retardant is water or anti-icing fluid.
3. Multicarity battery as described in claim 1, it is characterised in that: the liquid flame retardant be added with inorganic salts water or Anti-icing fluid.
4. Multicarity battery as described in claim 1, it is characterised in that: the explosion-proof valve is a metallic film.
5. Multicarity battery as claimed in claim 4, it is characterised in that: the metallic film is lost by mechanical score, laser The mode at quarter, chemical etching or welding is formed.
6. Multicarity battery as described in claim 1, it is characterised in that: be placed with liquid described in the liquid flame retardant filling The segment space of the cavity of fire retardant.
7. Multicarity battery as described in claim 1, it is characterised in that: the cross section of the cavity is quadrangle, wherein four The explosion-proof valve is equipped on connection side wall where in at least one of shape.
8. Multicarity battery as described in claim 1, it is characterised in that: the cavity and the placement liquid for placing battery core The cavity of fire retardant is staggered.
9. Multicarity battery as described in claim 1, it is characterised in that: the explosion-proof valve is positioned close to the Battery case The position of bottom.
10. a kind of battery pack, it is characterised in that: the battery pack includes described in any one of claim 1-9 at least two Multicarity battery.
CN201810948812.7A 2018-08-20 2018-08-20 A kind of Multicarity battery and battery pack Pending CN109065768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810948812.7A CN109065768A (en) 2018-08-20 2018-08-20 A kind of Multicarity battery and battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810948812.7A CN109065768A (en) 2018-08-20 2018-08-20 A kind of Multicarity battery and battery pack

Publications (1)

Publication Number Publication Date
CN109065768A true CN109065768A (en) 2018-12-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111921132A (en) * 2020-06-03 2020-11-13 孝感锐创机械科技有限公司 Flame-retardant structure of lithium battery

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442137A (en) * 2005-05-03 2009-05-27 三星Sdi株式会社 Cylinderical lithium rechargeable battery
JP2014107219A (en) * 2012-11-29 2014-06-09 Toyota Industries Corp Electricity storage device
CN203954502U (en) * 2014-07-04 2014-11-26 华擎机械工业股份有限公司 Battery extinguishing device
CN204760489U (en) * 2015-06-08 2015-11-11 浙江超威创元实业有限公司 Prevent electric core structure of explosion on fire and lithium ion battery who has this electricity core structure
CN107537111A (en) * 2017-10-09 2018-01-05 深圳市鸿嘉利消防科技有限公司 Battery case automatic extinguishing device
CN207474569U (en) * 2017-09-29 2018-06-08 郑州宇通客车股份有限公司 A kind of battery, battery modules and battery case, the vehicle using the battery modules
CN207587793U (en) * 2017-09-29 2018-07-06 郑州宇通客车股份有限公司 A kind of battery case, safety battery, battery modules, battery case and vehicle
CN208722930U (en) * 2018-08-20 2019-04-09 邦泰宏图(深圳)科技有限责任公司 A kind of Multicarity battery and battery pack

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442137A (en) * 2005-05-03 2009-05-27 三星Sdi株式会社 Cylinderical lithium rechargeable battery
JP2014107219A (en) * 2012-11-29 2014-06-09 Toyota Industries Corp Electricity storage device
CN203954502U (en) * 2014-07-04 2014-11-26 华擎机械工业股份有限公司 Battery extinguishing device
CN204760489U (en) * 2015-06-08 2015-11-11 浙江超威创元实业有限公司 Prevent electric core structure of explosion on fire and lithium ion battery who has this electricity core structure
CN207474569U (en) * 2017-09-29 2018-06-08 郑州宇通客车股份有限公司 A kind of battery, battery modules and battery case, the vehicle using the battery modules
CN207587793U (en) * 2017-09-29 2018-07-06 郑州宇通客车股份有限公司 A kind of battery case, safety battery, battery modules, battery case and vehicle
CN107537111A (en) * 2017-10-09 2018-01-05 深圳市鸿嘉利消防科技有限公司 Battery case automatic extinguishing device
CN208722930U (en) * 2018-08-20 2019-04-09 邦泰宏图(深圳)科技有限责任公司 A kind of Multicarity battery and battery pack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111921132A (en) * 2020-06-03 2020-11-13 孝感锐创机械科技有限公司 Flame-retardant structure of lithium battery
CN111921132B (en) * 2020-06-03 2021-06-29 忆伯网络科技(上海)股份有限公司 Flame-retardant structure of lithium battery

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