CN108598578A - A kind of anti-liquid-jet device of lithium ion battery chemical conversion - Google Patents

A kind of anti-liquid-jet device of lithium ion battery chemical conversion Download PDF

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Publication number
CN108598578A
CN108598578A CN201810159541.7A CN201810159541A CN108598578A CN 108598578 A CN108598578 A CN 108598578A CN 201810159541 A CN201810159541 A CN 201810159541A CN 108598578 A CN108598578 A CN 108598578A
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CN
China
Prior art keywords
pipe component
collection chamber
fluid collection
lithium ion
ion battery
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Granted
Application number
CN201810159541.7A
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Chinese (zh)
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CN108598578B (en
Inventor
龚根飞
田坤
陈炜
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Hefei Gotion High Tech Power Energy Co Ltd
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Hefei Guoxuan High Tech Power Energy Co Ltd
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/446Initial charging measures
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/691Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01M50/70Arrangements for stirring or circulating the electrolyte
    • H01M50/77Arrangements for stirring or circulating the electrolyte with external circulating path
    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a kind of lithium ion batteries to be melted into anti-liquid-jet device, including connecting pipe component, valve, fluid collection chamber, communicating pipe, the first end of connecting pipe component is located at the outside of fluid collection chamber, the second end of connecting pipe component is located in fluid collection chamber, first end opening of connecting pipe component is arranged, the second end closing setting of connecting pipe component;Connecting pipe component is equipped with return port, drainage hole, and return port, drainage hole are respectively positioned in fluid collection chamber, and drainage hole is located at the side of first end of the return port far from connecting pipe component, and the aperture of drainage hole is more than the aperture of return port;Valve is mounted on connecting pipe component;Communicating pipe is connected to fluid collection chamber.

Description

A kind of anti-liquid-jet device of lithium ion battery chemical conversion
Technical field
The present invention relates to battery technology fields more particularly to a kind of lithium ion battery to be melted into anti-liquid-jet device.
Background technology
Since first lithium ion battery is produced by Sony, lithium ion battery be successfully applied to mobile phone, The digital products such as notebook.Nearly ten years, lithium ion battery develops in passenger car, commercial car, public transport bus electric vehicle field Rapidly.Nowadays, people increasingly pay close attention to the long cruising ability of lithium ion battery, to the mass energy density and body of lithium ion battery Product energy density requires higher and higher so that lithium ion battery manufacturer is in the fabrication process for battery case internal volume Utilization rate is increasing.With the promotion of material compacted density, the design porosity of pole piece reduces, and electrolyte becomes difficult to infiltrate Pole piece;The activity space of the promotion of core volume accounting, electrolyte is reduced;Composite factor causes electrolyte in initial charge process In, hydrojet phenomenon frequently occurs.
Existing formation device lacks the management and control for lithium ion battery hydrojet phenomenon and handles.In formation process, battery In the case of inadequate buffer space in shell, electrolyte in charging process is caused to overflow.This not only wastes electrolyte, increases system This is caused, the weight of hydrojet also can not be estimated accurately, and the weight consistency of battery is caused to be deteriorated.The acidic electrolysis bath of ejection can be right Battery case carries out burn into and causes burn into pollute the environment equipment, brings a series of puzzlements to production, therefore proposes this Application.
Invention content
In order to solve technical problem present in background technology, the present invention proposes a kind of anti-hydrojet of lithium ion battery chemical conversion Device, effect are good.
A kind of anti-liquid-jet device of lithium ion battery chemical conversion, including connecting pipe component, valve, fluid collection chamber, communicating pipe, connecting tube The first end of component is located at the outside of fluid collection chamber, and the second end of connecting pipe component is located in fluid collection chamber, and the first of connecting pipe component End opening is arranged, the second end closing setting of connecting pipe component;Connecting pipe component is equipped with return port, drainage hole, return port, row Fluid apertures is respectively positioned in fluid collection chamber, and drainage hole is located at the side of first end of the return port far from connecting pipe component, the aperture of drainage hole More than the aperture of return port;Valve is mounted on connecting pipe component;Communicating pipe is connected to fluid collection chamber.
Preferably, the aperture of return port is 0.2-2mm.
Preferably, return port is located at the junction of connecting pipe component and fluid collection chamber.
Preferably, the quantity of return port is 2-4, and return port is around the circumferentially distributed of connecting pipe component.
Preferably, the aperture of drainage hole is 0.5-5mm.
Preferably, the spacing between drainage hole and the second end of connecting pipe component is 2-20mm.
Preferably, the second end of connecting pipe component is arc.
Preferably, valve is globe valve.
Preferably, further include sealing mouth, first end of the sealing mouth mounted on connecting pipe component.
Preferably, connecting pipe component includes return duct, explosion stack, and return duct is connect with explosion stack, one end position of return duct In the outside of fluid collection chamber, the other end of return duct is located in fluid collection chamber;Explosion stack is located in fluid collection chamber;The return port is located at back In flow tube;The drainage hole is located on explosion stack.
It in the present invention, solves in formation process, electrolyte waste, battery weight consistency caused by electrolyte hydrojet The problems such as difference, battery case burn into equipment burn into environmental pollution.
The configuration of the present invention is simple, it is easy to use.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is lithium ion battery structure schematic diagram.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutual combination;Below with reference to the accompanying drawings it and in conjunction with the embodiments elaborates to the present invention.
Referring to Fig.1,2:
A kind of lithium ion battery proposed by the present invention is melted into anti-liquid-jet device, including connecting pipe component, valve, fluid collection chamber, Communicating pipe, the first end of connecting pipe component are located at the outside of fluid collection chamber, and the second end of connecting pipe component is located in fluid collection chamber, connection First end opening of tube assembly is arranged, the second end closing setting of connecting pipe component;Connecting pipe component is equipped with return port, drain Hole, return port, drainage hole are respectively positioned in fluid collection chamber, and drainage hole is located at the side of first end of the return port far from connecting pipe component, The aperture of drainage hole is more than the aperture of return port;Valve is mounted on connecting pipe component;Communicating pipe is connected to fluid collection chamber.
In further embodiment, the aperture of return port is 0.2-2mm.Electrolyte in fluid collection chamber is returned by return port Stream.
In further embodiment, return port is located at the junction of connecting pipe component and fluid collection chamber.It is returned convenient for electrolyte Stream.
In further embodiment, the quantity of return port is 2-4, and return port is around the circumferentially distributed of connecting pipe component. It flows back convenient for electrolyte.
In further embodiment, the aperture of drainage hole is 0.5-5mm.It prevents electrolyte bumping from spraying, and will spray Electrolyte be drained in fluid collection chamber.2-4 drainage hole can be set, be distributed in a ring, disperse to flow around convenient for electrolyte It is dynamic.
In further embodiment, the spacing between drainage hole and the second end of connecting pipe component is 2-20mm.
In further embodiment, the second end of connecting pipe component is arc.The second end of connecting pipe component can be Hemispherical can effectively alleviate impact of the electrolyte to the second end of connecting pipe component in this way.
In further embodiment, valve is globe valve.The spouting liquid and rate of electrolyte are controlled, and clear safeguarding Globe valve can be closed when reason, prevent remaining electrolyte from leaking.
Further include sealing mouth in further embodiment, sealing mouth is mounted on the first end of connecting pipe component.Seal mouth For corrosion-resistant, anti-oxidant material, including polytetrafluoroethylene (PTFE), silica gel, rubber.
In further embodiment, connecting pipe component includes return duct, explosion stack, and return duct is connect with explosion stack, is returned One end of flow tube is located at the outside of fluid collection chamber, and the other end of return duct is located in fluid collection chamber;Explosion stack is located in fluid collection chamber;It is described Return port is located on return duct;The drainage hole is located on explosion stack.It is easy to process by the design of return duct, explosion stack, raw Production, installation, it is easy to use.
Fluid collection chamber shape can be spherical shape, elliposoidal, cuboid, square, and the electrolyte for spraying explosion stack is facilitated to draw It flow to return duct.
The first step, lithium ion battery A are installed to formation cabinet, and sealing mouth is depressed into the liquid injection port of battery, forms sealing automatically Connection.It is connected to negative pressure equipment communicating pipe, electrolyte is more easy to spray under negative pressure.External negative pressure equipment is implemented to be evacuated to communicating pipe Action reaches a timing in fluid collection chamber air pressure inside, and globe valve is slowly opened, and the inside of battery and the present apparatus is respectively formed negative at this time Pressure;.
Second step, formation cabinet carry out charge and discharge to battery, empty with the beginning aerogenesis and pole piece of inside battery side reaction Remaining gas starts to move to battery liquid-filling mouth at gap, and electrolyte flows to explosion stack along the tube wall of return duct, in explosion stack Electrolyte pass through drainage hole flow into fluid collection chamber in.
Third walks, and with the release of inside battery residual gas, the electrolyte in fluid collection chamber is begun through on return duct Return port back flows back into battery case.It is return duct, explosion-proof since the aperture of drainage hole is larger according to atmosphere device principle Liquid in pipe is discharged to by drainage hole in fluid collection chamber, then is flowed back into return duct from return port.
4th step is restored to normal pressure, globe valve is automatically closed communicating pipe with the end of chemical conversion.Without electricity during this It is excessive to solve liquid, the raffinate amount < 0.1mL in fluid collection chamber.
In above-mentioned steps, fluid collection chamber air pressure inside is -10~-90Kpa;The air pressure inside of battery and the present apparatus be -10~- 90Kpa;
Lithium ion battery interface under the conditions of the present invention is without blackspot, analysis lithium, and SEI is formed completely, and interface state is good;Battery Electrolyte solution loss amount accounting<0.2%, battery weight consistency is improved;Battery case without remaining electrolyte, equipment surface without Electroless liquid smell in remaining electrolyte, environment;Production material, human cost are saved.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (10)

1. a kind of lithium ion battery is melted into anti-liquid-jet device, which is characterized in that including connecting pipe component, valve, fluid collection chamber, connection Pipe, the first end of connecting pipe component are located at the outside of fluid collection chamber, and the second end of connecting pipe component is located in fluid collection chamber, connecting tube group First end opening of part is arranged, the second end closing setting of connecting pipe component;Connecting pipe component is equipped with return port, drainage hole, Return port, drainage hole are respectively positioned in fluid collection chamber, and drainage hole is located at the side of first end of the return port far from connecting pipe component, drain The aperture in hole is more than the aperture of return port;Valve is mounted on connecting pipe component;Communicating pipe is connected to fluid collection chamber.
2. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that the aperture of return port is 0.2-2mm。
3. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that return port is located at connecting tube The junction of component and fluid collection chamber.
4. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that the quantity of return port is 2- 4, return port is around the circumferentially distributed of connecting pipe component.
5. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that the aperture of drainage hole is 0.5-5mm。
6. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that drainage hole and connecting tube group Spacing between the second end of part is 2-20mm.
7. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that the second of connecting pipe component End is arc.
8. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that valve is globe valve.
9. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that further include sealing mouth, it is close Seal the first end that mouth is mounted on connecting pipe component.
10. lithium ion battery according to claim 1 is melted into anti-liquid-jet device, which is characterized in that connecting pipe component includes Return duct, explosion stack, return duct are connect with explosion stack, and one end of return duct is located at the outside of fluid collection chamber, the other end of return duct In fluid collection chamber;Explosion stack is located in fluid collection chamber;The return port is located on return duct;The drainage hole is located at explosion stack On.
CN201810159541.7A 2018-02-26 2018-02-26 Lithium ion battery formation liquid-spraying prevention device Active CN108598578B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810159541.7A CN108598578B (en) 2018-02-26 2018-02-26 Lithium ion battery formation liquid-spraying prevention device

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Application Number Priority Date Filing Date Title
CN201810159541.7A CN108598578B (en) 2018-02-26 2018-02-26 Lithium ion battery formation liquid-spraying prevention device

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CN108598578B CN108598578B (en) 2020-11-06

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164040A (en) * 2000-11-22 2002-06-07 Sony Corp Electrolyte removing method and electrolyte removing device
CN101582519A (en) * 2008-05-13 2009-11-18 周云祥 Storage battery with automatic balancing and feeding electrolyte
CN201466149U (en) * 2009-07-01 2010-05-12 江苏富朗特新能源有限公司 Backflow device used for formatting flexible-packaging lithium ion battery
CN102117936A (en) * 2009-12-30 2011-07-06 江苏富朗特新能源有限公司 Method for forming flexibly packaged lithium ion battery
CN102412382A (en) * 2010-09-21 2012-04-11 江苏春兰清洁能源研究院有限公司 Liquid receiving device of power battery safety valve
CN203165988U (en) * 2012-08-28 2013-08-28 合肥国轩高科动力能源股份公司 A lithium ion battery blowout preventer
CN103682458A (en) * 2013-12-11 2014-03-26 高平唐一新能源科技有限公司 Method for solving residue of internal gas and electrolyte in formation of hard-shell lithium battery
CN203553288U (en) * 2013-11-08 2014-04-16 合肥国轩高科动力能源股份公司 Square aluminum shell lithium battery negative-pressure formation auxiliary device
CN203812987U (en) * 2014-04-24 2014-09-03 合肥国轩高科动力能源股份公司 Temporary sealing device for square lithium ion battery opening formation
CN203910908U (en) * 2014-05-06 2014-10-29 杨通胜 Dedicated plug and device for supplying liquid into storage battery
CN204441398U (en) * 2015-02-13 2015-07-01 合肥国轩高科动力能源股份公司 A kind of lithium battery negative pressure formation device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164040A (en) * 2000-11-22 2002-06-07 Sony Corp Electrolyte removing method and electrolyte removing device
CN101582519A (en) * 2008-05-13 2009-11-18 周云祥 Storage battery with automatic balancing and feeding electrolyte
CN201466149U (en) * 2009-07-01 2010-05-12 江苏富朗特新能源有限公司 Backflow device used for formatting flexible-packaging lithium ion battery
CN102117936A (en) * 2009-12-30 2011-07-06 江苏富朗特新能源有限公司 Method for forming flexibly packaged lithium ion battery
CN102412382A (en) * 2010-09-21 2012-04-11 江苏春兰清洁能源研究院有限公司 Liquid receiving device of power battery safety valve
CN203165988U (en) * 2012-08-28 2013-08-28 合肥国轩高科动力能源股份公司 A lithium ion battery blowout preventer
CN203553288U (en) * 2013-11-08 2014-04-16 合肥国轩高科动力能源股份公司 Square aluminum shell lithium battery negative-pressure formation auxiliary device
CN103682458A (en) * 2013-12-11 2014-03-26 高平唐一新能源科技有限公司 Method for solving residue of internal gas and electrolyte in formation of hard-shell lithium battery
CN203812987U (en) * 2014-04-24 2014-09-03 合肥国轩高科动力能源股份公司 Temporary sealing device for square lithium ion battery opening formation
CN203910908U (en) * 2014-05-06 2014-10-29 杨通胜 Dedicated plug and device for supplying liquid into storage battery
CN204441398U (en) * 2015-02-13 2015-07-01 合肥国轩高科动力能源股份公司 A kind of lithium battery negative pressure formation device

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