CN109585738A - Li-ion batteries piles - Google Patents

Li-ion batteries piles Download PDF

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Publication number
CN109585738A
CN109585738A CN201811459635.2A CN201811459635A CN109585738A CN 109585738 A CN109585738 A CN 109585738A CN 201811459635 A CN201811459635 A CN 201811459635A CN 109585738 A CN109585738 A CN 109585738A
Authority
CN
China
Prior art keywords
ion batteries
batteries piles
shell
electrolyte
storage space
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
CN201811459635.2A
Other languages
Chinese (zh)
Inventor
李伟峰
王贺武
欧阳明高
张亚军
李成
李建秋
卢兰光
韩雪冰
杜玖玉
冯旭宁
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.)
Tsinghua University
Original Assignee
Tsinghua University
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 Tsinghua University filed Critical Tsinghua University
Priority to CN201811459635.2A priority Critical patent/CN109585738A/en
Publication of CN109585738A publication Critical patent/CN109585738A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

This application provides a kind of Li-ion batteries piles, including shell, bracket and multiple battery cores.The shell includes top blind flange, backing plate at bottom and multiple sidings being sequentially connected end to end.Window door is offered in each described siding, so that the battery core freely enters and leaves the shell by the window door.Li-ion batteries piles structure provided by the present application, on the one hand, bracket is set in the shell of Li-ion batteries piles, the intracorporal storage space of shell is divided into the sub- storage space of multiple branch's independent closeds, substantially reduce the volume of the Li-ion batteries piles electrolyte inside reaction when thermal runaway occurs, electrolyte reaction rate is greatly reduced, to check the further development of thermal runaway；On the other hand, on the siding of the shell, window door is offered, the battery core in Li-ion batteries piles can be when thermal runaway occurs, the shell is removed by battery core described in the window goalkeeper, effectively prevents further to generate violent chemical reaction inside Li-ion batteries piles.

Description

Li-ion batteries piles
Technical field
This application involves technical field of lithium ion, more particularly to a kind of Li-ion batteries piles.
Background technique
In recent years, the market share of electric car is promoted steadily.There is lithium ion battery high voltage, high-energy-density, length to follow The excellent performances such as ring service life and no pollution to the environment, the highest attention by ev industry.However, lithium ion battery is warm Burning mixture, such as H can be generated in runaway event2, CO or CH4Deng accumulating in inside battery.It is reached in inside lithium ion cell To after certain pressure boundary, safety valve is washed open by burning mixture, is discharged into external environment as battery erupts.? In battery ejection process, surface temperature of lithium ion battery can reach 1000 DEG C or so, lithium ion battery cell internal temperature It is higher, it is usually associated with Mars, surface temperature is about 600~1200 DEG C or so.Due to the high temperature surface of lithium ion battery And Mars temperature is much higher than the ignition temperature of gaseous state eruption, once the injection of gaseous state eruption connects in air and with oxygen Touching, Ignition Phenomena will easily occurs, and cause fire.In addition, even if the gaseous state eruption that generates is not after lithium ion battery eruption There is Ignition Phenomena, if gradually running up to certain amount, will likely also will appear explosion phenomenon, harmfulness will be bigger.Cause This, lithium ion battery eruption is to cause one of the security risk of lithium-ion electric Pool fire even explosion accident.Lithium ion battery The fire and explosion accident that thermal runaway causes appear in the newspapers repeatly, and the safety issue that lithium ion battery uses, which becomes, hinders it dynamic One of the principal element of power power industry large-scale commercial application.
Lithium ion battery thermal runaway process is made of series of chemical.In traditional scheme, due to lithium ion The limitation of this body structure of battery only changes the stability of lithium ion battery material, Wu Fazhi in the lithium ion battery design phase It connects and the chemical reaction boundary inside lithium-ion battery monomer is controlled, also can not effectively control the generation of thermal runaway process And the problem of development process.
Summary of the invention
Based on this, it is necessary to can not be carried out to the chemical reaction boundary inside battery cell for conventional lithium ion battery The problem of control, provides a kind of Li-ion batteries piles.
A kind of Li-ion batteries piles, comprising:
Shell, including top blind flange, backing plate at bottom and multiple sidings being sequentially connected end to end, the top blind flange, bottom Backing plate and the multiple siding surround to form storage space jointly；
Bracket is set to the storage space, is multiple sub- storage spaces for separating the storage space；
Multiple battery cores, each described battery core are set to a sub- storage space；
Each described siding offers window door, so that the battery core freely enters and leaves the shell by the window door Body.
In one embodiment, the battery core includes:
Anode pole piece；
Cathode pole piece, the anode pole piece and the cathode pole piece are wound into mutually cylindrical shape；
Positive pole ear is set to the battery core close to the side of the top blind flange, and is electrically connected with the anode pole piece It connects；And
Negative lug is set to the battery core close to the side of the top blind flange, and is electrically connected with the cathode pole piece It connects.
In one embodiment, the bottom surface of the top blind flange is provided with multiple grooves, each described positive pole ear It is connected with a groove, each described negative lug is connected with a groove.
In one embodiment, the top blind flange is made of an electrically conducting material, and removes institute in the bottom surface of the top blind flange It states the position except groove and is coated with insulated paint.
In one embodiment, the top surface of the bracket is fixedly connected with the bottom surface of the top blind flange, the bracket Bottom surface be fixedly connected with the top surface of the backing plate at bottom, to form the closed sub- storage space, the surface of the bracket Insulated paint is coated with the top surface of the backing plate at bottom.
In one embodiment, the bracket is provided with multiple buckles, so that each described battery core (160) and institute State bracket clamping.
In one embodiment, a locating clip is provided in each described sub- storage space, the locating clip is used In clamping the battery core, so that the battery core is fixedly connected on the shell.
In one embodiment, the locating clip includes locating shaft, the locating shaft and the fixed company of the backing plate at bottom It connects, the locating clip is made of heat-resisting and insulation material.
In one embodiment, the siding offers through-hole, and the size of the through-hole is greater than the ruler of the battery core It is very little, so that the battery core freely enters and leaves the shell by the through-hole；
The Li-ion batteries piles further include shaft, and the shaft is set between the window door and the siding, with The window door is set to cover the through-hole.
In one embodiment, the Li-ion batteries piles further include observation window, are embedded at the window door, are used for The internal state of the Li-ion batteries piles is observed, the observation window is made of heat resistant glass.
This application provides a kind of Li-ion batteries piles.The Li-ion batteries piles include shell, bracket and multiple electricity Core.The shell includes top blind flange, backing plate at bottom and multiple sidings being sequentially connected end to end.It is opened in each described siding Equipped with window door, so that the battery core freely enters and leaves the shell by the window door.The lithium ion provided by the present application Battery pack structure, on the one hand, bracket is set in the shell of Li-ion batteries piles, the intracorporal storage space of shell is divided into more It is anti-to substantially reduce the Li-ion batteries piles electrolyte inside when thermal runaway occurs for the sub- storage space of a branch's independent closed The volume answered greatly reduces electrolyte reaction rate, to check the further development of thermal runaway；On the other hand, in institute It states on the siding of shell, offers window door, the battery core in Li-ion batteries piles can pass through the window when thermal runaway occurs Battery core described in mouth goalkeeper removes the shell, effectively prevents Li-ion batteries piles inside is further from generating violent chemistry instead It answers.
Detailed description of the invention
Fig. 1 is the perspective view for the Li-ion batteries piles that one embodiment of the application provides；
Fig. 2 is the top view for the Li-ion batteries piles that one embodiment of the application provides；
The assembling schematic diagram of battery core and top blind flange in the Li-ion batteries piles that Fig. 3 provides for one embodiment of the application；
Fig. 4 is the top view for the Li-ion batteries piles that one embodiment of the application provides；
Fig. 5 is the top view for the Li-ion batteries piles that one embodiment of the application provides；
Fig. 6 is the perspective view for the Li-ion batteries piles that one embodiment of the application provides；
Fig. 7 is the top view for the Li-ion batteries piles thermal runaway processing system that one embodiment of the application provides；
Fig. 8 is the top view for the Li-ion batteries piles thermal runaway processing system that one embodiment of the application provides；
Fig. 9 is the structural schematic diagram for the Li-ion batteries piles cooling system that one embodiment of the application provides；
Figure 10 is the structural schematic diagram for the Li-ion batteries piles cooling system that one embodiment of the application provides；
Figure 11 is the structural schematic diagram for the Li-ion batteries piles cooling system that one embodiment of the application provides；
The assembly of battery core and radiating core is shown in the Li-ion batteries piles cooling system that Figure 12 provides for one embodiment of the application It is intended to；
Figure 13 is the top view for the Li-ion batteries piles cooling system that one embodiment of the application provides；
Figure 14 is the top view for the Li-ion batteries piles thermal runaway processing system that one embodiment of the application provides；
Figure 15 is the top view for the Li-ion batteries piles thermal runaway processing system that one embodiment of the application provides.
Appended drawing reference:
10 shells；100 Li-ion batteries piles；110 top blind flanges；111 grooves；120 backing plate at bottom；
130 sidings；131 window doors；132 through-holes；133 shafts；134 observation windows；135 first valves
136 second valves；137 third valves；138 apertures；140 storage spaces；141 sub- storage spaces
150 brackets；151 buckles；160 battery cores；161 anode pole pieces；162 cathode pole pieces；
163 positive pole ears；164 negative lugs；170 locating clips；171 locating shafts；180 location holes
190 electrolyte；191 transmission pipelines；192 recovery channels；200 pressure test devices
300 caissons；400 dilution devices；500 controllers；600 radiators；610 radiator coil tubes
611 radiator coil tube cavitys；612 first nozzles；613 second nozzles；620 water-cooling units
621 water tanks；622 water pumps；623 water outlets；624 water inlets；625 first pumping holes
626 second pumping holes；630 radiating cores；631 radiating core cavitys；632 connection buckles
640 wind-cooling heat dissipating units；641 radiators；642 hot channels
700 electrolyte suction units；710 electrolyte storage boxes；720 capacity check components
730 suction unit valves；740 first pressures pump；800 temperature-detecting devices
900 electrolyte recycling devices；910 electrolyte recycling bins；920 recyclable device valves；
930 second pressures pump
Specific embodiment
In order to make the purpose of the application, technical solution and advantage are more clearly understood, right with reference to the accompanying drawings and embodiments Li-ion batteries piles provided by the present application are further elaborated.It should be appreciated that specific embodiment described herein is only To explain the application, it is not used to limit the application.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
This application provides a kind of Li-ion batteries piles 100.It should be noted that lithium ion battery provided by the present application Group 100 does not limit the application scenarios of the Li-ion batteries piles 100.Lithium provided by the present application can be used in any application scenarios Ion battery group 100.Optionally, Li-ion batteries piles 100 provided by the present application are applied to electric car field.Specifically, institute Li-ion batteries piles 100 are stated to be applied to prevent lithium ion battery generation thermal runaway phenomenon from causing grinding for the disasters such as catch fire or explode Study carefully.
Fig. 1 and Fig. 2 are please referred to, in the embodiment of the application, the Li-ion batteries piles 100 include shell 10, branch Frame 150 and multiple battery cores 160.Specifically, the Li-ion batteries piles 100 further include filling in the electrolysis in the shell 10 Liquid.It can be connected in series between the battery core 160, also can be connected in parallel.
The shell 10 includes top blind flange 110, backing plate at bottom 120 and multiple sidings 130 being sequentially connected end to end.Institute It states common surround of top blind flange 110, backing plate at bottom 120 and the multiple siding 130 and forms storage space 140.The bracket 150 are set to the storage space 140, are multiple sub- storage spaces 141 for separating the storage space 140.Each institute It states battery core 160 and is set to a sub- storage space 141.Each described siding 130 offers window door 131, so that the electricity Core 160 freely enters and leaves the shell 10 by the window door 131.
Specifically, the material of the shell 10 can be one of aluminium alloy and iron-carbon alloy.The bracket 150 Top surface is fixedly connected with the top blind flange 110, and the bottom surface of the bracket 150 is fixedly connected with the backing plate at bottom 120, with The storage space 140 is divided into the multiple sub- storage space 141.The setting of the bracket 150 can the lithium from When thermal runaway phenomenon occurs for sub- battery pack 100, reduces the response area of the electrolyte, avoid chain reaction, avoid energy same When release and cause 100 internal temperature of Li-ion batteries piles and surface temperature to rise sharply.The top blind flange 110 can be made For the positive terminal of the Li-ion batteries piles 100, the backing plate at bottom 120 can be used as the negative of the Li-ion batteries piles 100 Extremely.
In the present embodiment, 100 structure of Li-ion batteries piles provided by the present application, on the one hand, by lithium-ion electric The bracket 150 being arranged in the shell 10 of pond group 100, is divided into multiple branch's independent closeds for the storage space 140 in shell 10 Sub- storage space 141, substantially reduce thermal runaway occur when 100 electrolyte inside of Li-ion batteries piles reaction volume, Electrolyte reaction rate is greatly reduced, to check the further development of thermal runaway；On the other hand, in the shell 10 Siding 130 on, offer window door 131, the battery core 160 in Li-ion batteries piles 100 can thermal runaway occur when, pass through The battery core 160 is removed the shell 10 by the window door 131, and 100 inside of Li-ion batteries piles is effectively prevented further to produce Raw violent chemical reaction.
As shown in figure 3, the battery core 160 includes anode pole piece 161, cathode pole piece in the embodiment of the application 162, positive pole ear 163 and negative lug 164.The anode pole piece 161 and the cathode pole piece 162 are wound into mutually cylinder Shape.The positive pole ear 163 is set to the battery core 160 close to the side of the top blind flange 110, and with the positive pole Piece 161 is electrically connected.The negative lug 164 is set to the battery core 160 close to the side of the top blind flange 110, and with The cathode pole piece 162 is electrically connected.
Specifically, the battery core 160 further includes diaphragm, is set to the anode pole piece 161 and the cathode pole piece 162 Between.The surface of the anode pole piece 161 is coated with positive electrode material.The surface of the cathode pole piece 162 is coated with cathode Electrode material.Optionally, the material of the anode pole piece 161 can be aluminium.The material of the cathode pole piece 162 can be copper. The battery core 160 is takeup type battery core 160.The battery core 160 is by the anode pole piece 161, the diaphragm and the cathode pole Piece 162 is wound.The positive pole ear 163 is electrically connected with the anode pole piece 161, and the negative lug 164 is born with described Pole pole piece 162 is electrically connected.
In the present embodiment, the positive pole ear 163 is set and the negative lug 164 is in the same of the battery core 160 Side is connect with the top cover board by the positive pole ear 163 and the negative lug 164 convenient for the battery core 160, is kept away Exempting from the 10 inside cabling confusion of shell causes short circuit to be caught fire.
Please continue to refer to Fig. 3, in the embodiment of the application, the bottom surface of the top blind flange 110 is provided with multiple recessed Slot 111.Each described positive pole ear 163 and a groove 111 connect.Each described negative lug 164 with One groove 111 connects.
Specifically, the bottom surface of the top blind flange 110 is provided with multiple grooves 111, the top surface of the bracket 150 and institute Top blind flange 110 is stated to be fixedly connected so that each described sub- storage space 141 has at least two grooves 111.
In addition, the size of the groove 111 is consistent with the positive pole ear 163, the size of the negative lug 164, with So that the positive pole ear 163 and the negative lug 164 are distinguished when the battery core 160 is installed on 10 inside of shell It is tightly contacted with two grooves 111 of the top blind flange 110, realizes the connection of battery core 160 and top blind flange 110.It needs Bright, the positive pole ear 163 or the negative lug 164 are with the connection type of the groove 111 to connect, It is not to be fixedly connected.
In the present embodiment, by the way that the groove 111 is arranged, the shell 10 when the Li-ion batteries piles 100 can be made In a certain sub- storage space 141 when thermal runaway phenomenon occurs, can open easily and fast described on the siding 130 Window door 131 takes out the battery core 160 in the sub- storage space 141.
In the embodiment of the application, the top blind flange 110 is made of an electrically conducting material.In the top blind flange 110 Position of the bottom surface in addition to the groove 111 be coated with insulated paint.
Specifically, the position in the bottom surface of the top blind flange 110 in addition to the groove 111 is coated with insulated paint, can With keep the sub- storage space 141 have good insulating properties and airtightness, prevent the multiple sub- storage space 141 it Between electrolyte reveal, generate the chain reaction of thermal runaway.In addition, the top blind flange 110 can be used as the lithium ion battery The positive terminal of group 100.Conducting wire can be arranged in the top blind flange 110, the top blind flange 110 passes through the conducting wire and institute It states multiple grooves 111 to be electrically connected with the multiple battery core 160, the embedding lithium circulation of the de- lithium normally to realize lithium ion battery.It is described Multiple battery cores 160 can also be realized by the conducting wire and be connected in series or be connected in parallel.
In the embodiment of the application, the bottom surface of the top surface of the bracket 150 and the top blind flange 110 is fixed to be connected It connects, the bottom surface of the bracket 150 is fixedly connected with the top surface of the backing plate at bottom 120, to form multiple independent and closed institute State sub- storage space 141.The surface of the bracket 150 and the top surface of the backing plate at bottom 120 are coated with insulated paint.
Specifically, the bracket 150 can be material that is heat-resisting and not generating deformation under high temperature environment.Optionally, institute The bottom surface of the top surface and the top blind flange 110 of stating bracket 150 is welded, the bottom surface of the bracket 150 and the backing plate at bottom 120 top surface welding.
As shown in figure 4, the bracket 150 is provided with multiple buckles 151, so that each in the embodiment of the application A battery core 160 is clamped with the bracket 150.
Specifically, the bracket 150 is provided with multiple buckles 151, and each described sub- storage space 141 is had There is the buckle 151.Each described 151 one described battery core 160 of clamping of buckle.The buckle 151 has clamping shape State and relaxed state.When the buckle 151 is in the gripping orientation, the battery core 160 can pass through the buckle 151 It is fixed on the bracket 150.When the buckle 151 is in the relaxed state, it is fixed on the electricity of the bracket 150 Core 160 can be detached from the bracket 150 by the buckle 151.
In the present embodiment, by the way that the buckle 151 is arranged, allow the battery core 160 in Li-ion batteries piles 100 When thermal runaway phenomenon not occurring, it is fixed in the shell 10 and executes the embedding lithium work of normally de- lithium.In Li-ion batteries piles When 100 generation thermal runaway phenomenon, the buckle 151 dismantles the battery core 160 from the bracket 150, and through institute State the shell 10 that the window door 131 on siding 130 is detached from the Li-ion batteries piles 100.
As shown in figure 5, being provided with one in each described sub- storage space 141 in the embodiment of the application and determining Position folder 170.The locating clip 170 is for clamping the battery core 160, so that the battery core 160 is fixedly connected on the shell 10。
Specifically, the buckle 151 of the locating clip 170 being functionally equivalent in above-described embodiment.
In the embodiment of the application, the locating clip 170 include locating shaft 171, the locating shaft 171 with it is described Backing plate at bottom 120 is fixedly connected, and the locating clip 170 is made of heat-resisting and insulation material.
Specifically, spring and locating shaft 171 are provided in the locating clip 170.The locating shaft 171 and the bottom Backing plate 120 is fixedly connected, and the spring passes through the backing plate at bottom 120.The cooperation of the spring and the locating shaft 171, makes The battery core 160 can be clamped by obtaining the locating clip 170, be fixed in the sub- storage space 141.
As shown in fig. 6, the siding 130 offers through-hole 132 in the embodiment of the application.The through-hole 132 Size be greater than the size of the battery core 160 so that the battery core 160 freely enters and leaves the shell by the through-hole 132 10.The Li-ion batteries piles 100 further include shaft 133.The shaft 133 is set to the window door 131 and the siding Between 130, so that the window door 131 covers the through-hole 132.
Specifically, the window door 131 is made of insulating material or 131 surface of window door is coated with insulated paint.? When the Li-ion batteries piles 100 are normally carried out charging and discharging work and thermal runaway phenomenon does not occur, the window door 131 covers The through-hole 132 is covered, so as to be air-tight state inside the Li-ion batteries piles 100, prevents the Li-ion batteries piles 100 The internal electrolyte overflows, and causes leaky.It, can be with when thermal runaway phenomenon occurs for the Li-ion batteries piles 100 By opening the window door 131, by the battery core 160 in the sub- storage space 141 for thermal runaway phenomenon occur via The through-hole 132 takes out, and 100 inside of Li-ion batteries piles is effectively prevented further to generate violent chemical reaction.
In addition, each sub- storage space 141 has the corresponding through-hole 132 and the window door 131, make Obtain some the described battery core 160 or a certain of 100 maintenance personnel of Li-ion batteries piles in the discovery Li-ion batteries piles 100 When thermal runaway phenomenon occurs for the electrolyte in region, it is not necessary to which whole battery cores 160 are taken out or damaged.There is heat mistake taking out After controlling the battery core 160 in the sub- storage space 141 of phenomenon, the battery core in remaining described sub- storage space 141 160 and the electrolyte still can work normally.
Please continue to refer to Fig. 6, in the embodiment of the application, the Li-ion batteries piles 100 further include observation window 134.The observation window 134 is embedded at the window door 131, for observing the internal state of the Li-ion batteries piles 100. The observation window 134 is made of heat resistant glass.
Specifically, 100 maintenance personnel of Li-ion batteries piles can be observed at any time by the observation window 134 lithium from The internal state of sub- battery pack 100, convenient for that can be sent out in time when the inside of the Li-ion batteries piles sends thermal runaway phenomenon Now and take countermeasure.
This application provides a kind of Li-ion batteries piles 100, including shell 10, bracket 150 and multiple battery cores 160.It is described Shell 10 includes top blind flange 110, backing plate at bottom 120 and multiple sidings 130 being sequentially connected end to end.In each wall Plate offers window door 131, so that the battery core 160 freely enters and leaves the shell 10 by the window door 131.The branch Frame 150 is provided with buckle 151 or locating clip 170.100 structure of Li-ion batteries piles provided by the present application, on the one hand, lithium from Bracket 150 is set in the shell 10 of sub- battery pack 100, it is independently close that the storage space 140 in shell 10 is divided into multiple branches The sub- storage space 141 closed substantially reduces the body of 100 electrolyte inside of the Li-ion batteries piles reaction when thermal runaway occurs Product, greatly reduces electrolyte reaction rate, to check the further development of thermal runaway；On the other hand, in the shell On the siding 130 of body, window door 131 is offered, the battery core 160 in Li-ion batteries piles 100 can lead to when thermal runaway occurs It crosses the window door 131 and the battery core 160 is removed into the shell 10, effectively prevent 100 inside of Li-ion batteries piles further Generate violent chemical reaction.
Present invention also provides a kind of Li-ion batteries piles thermal runaway processing system and methods.
As shown in fig. 7, in the embodiment of the application, at the Li-ion batteries piles thermal runaway provided by the present application Reason system, the Li-ion batteries piles 100 referred to including foregoing teachings.The Li-ion batteries piles thermal runaway processing system It further include pressure test device 200, caisson 300, dilution device 400 and controller 500.The caisson 300 and institute Dilution device 400 is stated to connect with the Li-ion batteries piles 100 by gas pipeline respectively.The controller 500 respectively with institute Pressure test device 200, the caisson 300 and the dilution device 400 is stated to be electrically connected.The pressure test device 200 It is set in the Li-ion batteries piles 100.
Specifically, the controller 500, which can be set, is connecting with the Li-ion batteries piles thermal runaway processing system In monitoring module.The controller 500 caisson 300 can be controlled by the monitoring module or the dilution fills Set the 400 accesses Li-ion batteries piles 100.
It should be noted that the Li-ion batteries piles thermal runaway processing system does not limit its application environment.Optionally, The Li-ion batteries piles thermal runaway processing system can be applied to scientific research.Optionally, the Li-ion batteries piles heat is lost Control processing system can be applied to electric car.Specifically, the Li-ion batteries piles thermal runaway processing system can be assemblied in On electric car, to cope with the issuable thermal runaway phenomenon of battery of electric vehicle.Optionally, the Li-ion batteries piles heat is lost Control processing system can be applied to the terminal or charging station of electric car, pass through the terminal or charging station in electric vehicle When, the thermal runaway state of battery of electric vehicle is monitored.
In the present embodiment, the Li-ion batteries piles 100 include shell 10 and the multiple electricity being set in the shell 10 Core 160.The pressure test device 200 is set in the shell 10, for detecting the gas pressure intensity in the shell 10. The controller 500 is used to control the caisson 300 or dilution dress according to the gas pressure intensity in the shell 10 Set the gas pressure intensity in the 400 adjustment shell 10.The controller 500 can be processor.
In the present embodiment, the Li-ion batteries piles thermal runaway processing system provided by the present application, on the one hand, described The setting pressure test device 200, can monitor the lithium ion battery in real time in the shell 10 of Li-ion batteries piles 100 The air pressure inside situation of group 100, so that monitoring personnel can be according to the Li-ion batteries piles after the generation of thermal runaway process 100 air pressure inside situation, makes rapidly action.On the other hand, the Li-ion batteries piles 100 are electrically connected with the gas storage Device 300 and the dilution device 400, can be when thermal runaway occurs for the battery core 160 in Li-ion batteries piles 100, by described The battery core 160 is removed the shell 10 by window door 131, controls the caisson 300 or the dilution device 400 is adjusted Gas pressure intensity in the whole shell 10 effectively prevents 100 inside of Li-ion batteries piles from further generating violent chemistry anti- It answers.
In the embodiment of the application, the shell 10 include top blind flange 110, backing plate at bottom 120 and it is multiple successively The siding 130 of head and the tail connection.The top blind flange 110, backing plate at bottom 120 and the multiple siding 130 are received around formation jointly Receive space 140.The shell 10 further includes bracket 150.The shell 10 further includes bracket 150, and the bracket 150 is set to The storage space 140 is multiple sub- storage spaces 141 for separating the storage space 140.
The present embodiment has been mentioned in foregoing teachings, and details are not described herein again.
In the embodiment of the application, each described battery core 160 is set to a sub- storage space 141.Each The battery core 160 is electrically connected with the top blind flange 110 respectively.
The present embodiment has been mentioned in foregoing teachings, and details are not described herein again.
As shown in figure 8, being provided with an institute in each described sub- storage space 141 in the embodiment of the application State pressure test device 200.The pressure test device 200 is used to detect the gas pressure of each sub- storage space 141 By force.
Specifically, the pressure test device 200 can be baroceptor.The pressure test device 200 can be consolidated Due to the inner wall of the shell 10.By taking the embodiment in Fig. 4 as an example, the bracket 150 in the shell 10 is by the shell The storage space 140 in 10 is divided into four sub- storage spaces 141.Correspondingly, being provided in the shell 10 Four pressure test devices 200.The air pressure detection dress is provided in each described sub- storage space 141 200 are set, respectively the gas pressure intensity in the different sub- storage spaces 141 of detection.The multiple pressure test device 200 also divides It is not electrically connected in the controller 500, the gas pressure intensity in the shell 10 will test acquisition is sent to the controller 500。
In the present embodiment, by the way that the air pressure detection dress is arranged in the sub- storage space 141 in the shell 10 Set 200, realize the real time monitoring of the pressure status to sub- storage space 141 described in the shell 10, once the lithium from Thermal runaway phenomenon occurs for the inside of sub- battery pack 100, and the pressure test device 200 can detect the shell at the first time Pressure change in body 10 finds that the maintenance personnel of the Li-ion batteries piles 100 in time and correspondence is taken to arrange It applies.
With continued reference to Fig. 8, in the embodiment of the application, the siding 130 offers multiple first valves 135, more A second valve 136 and multiple third valves 137.Each described sub- storage space 141 has corresponding one first 135, second valves 136 of valve and a third valve 137.The multiple first valve 135 and the caisson 300 are connected by gas pipeline.The multiple third valve 137 is connect with the dilution device 400 by gas pipeline.
In the present embodiment, by the way that multiple are arranged on the siding 130 of 100 shell 10 of Li-ion batteries piles One valve 135, multiple second valves 136 and multiple third valves 137, can be when thermal runaway phenomenon occurs, by opening phase The caisson 300 or the dilution device 400 are accessed the Li-ion batteries piles 100 by the valve answered, to have in time Effect the gas pressure intensity in the shell 10 is adjusted, inside Li-ion batteries piles 100 prevent thermal runaway phenomenon into The development of one step.
In the embodiment of the application, Li-ion batteries piles thermal runaway processing method provided by the present application includes as follows Step S100 to step S160:
S100 receives the gas pressure intensity for the sub- storage space 141 that the pressure test device 200 obtains.
Specifically, the pressure test device 200 obtains the gas pressure intensity in the sub- storage space 141, and will be described The gas pressure intensity of sub- storage space 141 is sent to the controller 500.
S110, judges whether the gas pressure intensity of the sub- storage space 141 is greater than the described first default pressure.
After the gas pressure intensity that the controller 500 receives the sub- storage space 141, the controller 500 transfers institute State the pre-stored first default pressure in monitoring module.The first default pressure is Li-ion batteries piles prison Control personnel preset.Further, the controller 500 compares the gas pressure intensity and described the of the sub- storage space 141 The numerical value of one default pressure, judges whether the gas pressure intensity of the sub- storage space 141 is greater than the described first default pressure.
S120 continues to judge institute if the gas pressure intensity of the sub- storage space 141 is greater than the described first default pressure Whether the gas pressure intensity for stating sub- storage space 141 is greater than the described second default pressure.The second default pressure is greater than described the One default pressure.
Specifically, the numerical value of the described second default pressure is greater than the described first default pressure.The first default pressure is Low risk pressure.The second default pressure is high risk pressure.If the gas pressure intensity of the sub- storage space 141 is big In the described first default pressure, then illustrate that the electrolyte 190 or battery core 160 inside the Li-ion batteries piles 100 have begun It reacts, and has produced thermal runaway phenomenon, but danger coefficient is lower.Whether to detect the Li-ion batteries piles 100 Thermal runaway state in high-risk coefficient, needs further to judge whether the gas pressure intensity of the sub- storage space 141 is greater than The second default pressure.
S130, if the gas pressure intensity of the sub- storage space 141 be not more than the described second default pressure, control described in Admixture of gas in sub- storage space 141 enters the caisson 300.
Specifically, if the gas pressure intensity of the sub- storage space 141 is not more than the described second default pressure, illustrate institute It states electrolyte 190 or battery core 160 inside Li-ion batteries piles 100 and vigorous reaction not yet occurs, also do not generate serious heat and lose Control phenomenon.There is the danger caught fire or exploded at any time in the Li-ion batteries piles 100.Then, the controller 500 is made low The solution of danger coefficient thermal runaway phenomenon, that is, the admixture of gas controlled in the sub- storage space 141 enter the storage Device of air 300.In addition, the controller 500, which can distinguish the multiple sub- storage space 141, executes the step S100 extremely Step S130, to open the caisson 300 to the sub- storage space 141 for gas pressure intensity exception occur.The storage Device of air 300, because of the flammable gaseous mixture sucking that thermal runaway reaction generates, can subtract in the sub- storage space 141 Delay the thermal runaway reaction speed in the sub- storage space 141.
S150 returns to the step S100.
Specifically, the controller 500 returns to the step S100, continues to monitor the gas in the sub- storage space 141 Press pressure change.
In the present embodiment, the lithium ion battery processing method obtains the lithium-ion electric by pressure test device 200 Gas pressure intensity in the sub- storage space 141 of pond group 100, further, the gas pressure intensity according to the sub- storage space 141 With the comparison of the comparison result of the first default pressure and the gas pressure intensity of the sub- storage space 141 and the second default pressure As a result, controlling the caisson 300 stores admixture of gas in the sub- storage space 141, generation can be effectively reduced After thermal runaway reaction, the density of the admixture of gas in the sub- storage space 141 avoids 100 inside of Li-ion batteries piles quick-fried It fries and catches fire.
In the embodiment of the application, the step S130 includes:
S131 controls first valve 135 and opens, and controls second valve 136 and the third valve 137 closes It closes.
Specifically, first valve 135 is connect with the caisson 300 by gas pipeline, therefore, the control Device 500 processed controls first valve 135 and opens, and controls second valve 136 and the third valve 137 is closed, by institute It states caisson 300 and the sub- storage space 141 is connected.
As shown in figure 11, in the embodiment of the application, the Li-ion batteries piles thermal runaway processing method further includes Following steps S140 to step S160:
S140 is controlled described dilute if the gas pressure intensity of the sub- storage space 141 is greater than the described second default pressure Release device 400 inputs diluent gas to the sub- storage space 141.
Specifically, if the gas pressure intensity of the sub- storage space 141 be greater than the described second default pressure, illustrate described in Electrolyte 190 or battery core 160 inside Li-ion batteries piles 100 have occurred and that vigorous reaction, and it is existing to generate serious thermal runaway As.There is the danger caught fire or exploded at any time in the Li-ion batteries piles 100.At this point, being absorbed using the caisson 300 Combustible gas mixture in the sub- storage space 141 can not play the role of effectively controlling thermal runaway reaction, the control Device 500 processed closes the connection of the shell 10 and the caisson 300, and the dilution device 400 and the shell 10 are connected It is logical.
400 storage inside of dilution device has the diluent gas.The diluent gas is non-flammable protection gas. The protection gas can be CO2Gas.The admixture of gas inside the shell 10 is fuel gas H2, CO and CH4Deng.
The present embodiment is passed through the non-flammable protection to the sub- storage space 141 by the dilution device 400 Gas can effectively dilute the concentration of the fuel gas in the sub- storage space 141, thus effectively containment thermal runaway reaction Further development.
S160 returns to the step S100.
Specifically, the controller 500 returns to the step S100, continues to monitor the gas in the sub- storage space 141 Press pressure change.
In the embodiment of the application, the step S140 includes:
S141 controls second valve 136 and opens, and controls first valve 135 and closes and the third valve 137 close, and continue preset time.
Specifically, second valve 136 is connect with the caisson 300 by gas pipeline, therefore, the control Device 500 processed controls second valve 136 and opens, and controls second valve 136 and the third valve 137 is closed, by institute It states dilution device 400 and the sub- storage space 141 is connected.The preset time is the Li-ion batteries piles maintenance personnel Artificial setting.Continue preset time by controlling second valve 136 and opening, can make in the sub- storage space 141 The combustible gas mixture and the non-flammable protective gas be sufficiently mixed, realize and dilute fuel gas mixing The effect of object.
S142 controls second valve 136 and the third valve 137 opens, control after the preset time First valve 135 is made to close.
Specifically, the third valve 137 is set on the siding 130 of the shell 10, for the mixing after diluting The shell 10 is discharged in gas.The third valve 137 can connect a processing unit, by the gaseous mixture after the dilution Body collects, and facilitates subsequent independent processing.The third valve 137 can also directly be in communication with the outside, and being convenient for will be described dilute Mixed gas after releasing is emitted into the external world.While the third valve 137 is opened, second valve 136 is kept it turning on State further dilutes the sub- storage space 141 in order to which the diluent gas continues to be filled with the sub- storage space 141 The interior combustible gas mixture.
In the present embodiment, the controller 500 is by the unlatching of second valve 136 and third valve 137, in institute When stating generation severe thermal runaway phenomenon inside Li-ion batteries piles 100, by the dilution device 400 and the lithium ion battery Connection, so that the combustible gas mixture in the sub- storage space 141 is diluted, effectively from the lithium-ion electric The further development of the internal control thermal runaway reaction of pond group 100.
In the embodiment of the application, the Li-ion batteries piles thermal runaway processing method further includes following steps S170:
S170, if the gas pressure intensity of the sub- storage space 141 be not more than the described first default pressure, control described in First valve 135, second valve 136 and the third valve 137 are closed.
Specifically, if the gas pressure intensity of the sub- storage space 141 is not more than the described first default pressure, illustrate institute It states electrolyte 190 or battery core 160 inside Li-ion batteries piles 100 not yet to react, does not generate thermal runaway phenomenon.It is described Li-ion batteries piles 100 are in comparatively safe state.
Lithium ion battery processing method provided by the present application obtains the lithium ion battery by pressure test device 200 Gas pressure intensity in the sub- storage space 141 of group 100, according to the gas pressure intensity of the sub- storage space 141 and the first default pressure The gas pressure intensity of strong comparison result and the sub- storage space 141 and the comparison result of the second default pressure control institute It states caisson 300 and stores admixture of gas in the sub- storage space 141, can effectively reduce and generate thermal runaway reaction Afterwards, the density of the admixture of gas in the sub- storage space 141 avoids 1 inside Li-ion batteries piles 100 from exploding and lose Fire.
Present invention also provides a kind of 100 cooling systems of Li-ion batteries piles.
As shown in figure 9,100 cooling system of Li-ion batteries piles includes in aforementioned in the embodiment of the application Hold the Li-ion batteries piles 100 and radiator 600 referred to.The radiator 600 and the Li-ion batteries piles 100 connect.
The Li-ion batteries piles 100 include shell 10 and the multiple battery cores 160 being set in the shell 10.It is described Radiator 600 is used for will be inside the Li-ion batteries piles 100 when thermal runaway occurs for the Li-ion batteries piles 100 Heat transmission is to the external world.The radiator 600 includes radiator coil tube 610.The radiator coil tube 610 is wound around the shell 10 outer surface.
Specifically, the radiator coil tube 610 is made of the material of heat-resisting material and excellent heat conductivity.Optionally, described The material of radiator coil tube 610 is ceramics.The size of the radiator coil tube 610 and the size of the shell 10 match, so that institute It is close with the shell 10 and come into full contact with to state radiator coil tube 610.
In the present embodiment, 100 cooling system of Li-ion batteries piles passes through the shell 10 in Li-ion batteries piles 100 Outer surface winding radiator coil tube 610 so that the Li-ion batteries piles 100 occur thermal runaway reaction when, in time by the lithium The a part in heat generated inside ion battery group 100 is transmitted to radiator coil tube 610, to reduce the lithium ion Security risk of the battery pack 100 under thermal runaway.
Please continue to refer to Fig. 9, in the embodiment of the application, the radiator coil tube 610 is provided with radiator coil tube cavity 611.The radiator coil tube cavity 611 is contained with recirculated water.
Specifically, the recirculated water in the radiator coil tube cavity 611 can be replaced periodically, maintain the radiator coil tube 610 Superior heat radiation performance.Other excellent heat-conducting mediums can also be held in the radiator coil tube cavity 611.
As shown in Figure 10, in the embodiment of the application, the radiator 600 further includes water-cooling unit 620.The water-cooling unit 620 is connect with the radiator coil tube 610 by waterway pipe.The water-cooling unit 620 Including water tank 621 and water pump 622.The water tank 621 is connect with the radiator coil tube 610 by waterway pipe.The water pump 622 are set on the waterway pipe between the water tank 621 and the radiator coil tube 610.The water pump 622 is used for will be described Recirculated water in water tank 621 is delivered to the radiator coil tube 610, to realize the water tank 621 and the Li-ion batteries piles Heat exchange between 100.
It, can will be described in the water-cooling unit 620 by the way that the water-cooling unit 620 is arranged in the present embodiment The recirculated water in water tank 621 is delivered to the radiator coil tube 610 by the water pump 622, to the radiator coil tube 610 In the recirculated water and the Li-ion batteries piles 100 the shell 10 exchange heat after, the recirculated water is again defeated Enter in the water tank 621, realize circulation cooling, at low cost and enforcement difficulty is small.
With continued reference to Figure 10, in the embodiment of the application, the water tank 621 includes water outlet and water inlet 624. The water pump 622 includes the first pumping hole 625 and the second pumping hole 626.The radiator coil tube 610 includes the first nozzle 612 and second Nozzle 613.The water outlet is connect with first pumping hole 625 by waterway pipe, second pumping hole 626 and described the One nozzle 612 is connected by waterway pipe, and second nozzle 613 is connect with the water inlet 624 by waterway pipe.
Specifically, the recirculated water in the water tank 621 is flowed out by water outlet, is flowed into through first pumping hole 625 The water pump 622 flows out the water pump 622 through second pumping hole 626.It is followed after bad water flows out the water pump 622 described, Enter the radiator coil tube 610 through first nozzle 612, after exchanging heat with the shell 10, through second nozzle 613 The water inlet 624 is flowed into, and then returns to the water tank 621 and realizes circulation cooling.
As shown in figure 11, in the embodiment of the application, the radiator 600 further includes radiating core 630.It is described Radiating core 630 is provided with radiating core cavity 631, and the radiating core cavity 631 is contained with heat-conducting medium.
Specifically, the radiating core 630 is made of the material of heat-resisting material and excellent heat conductivity.Optionally, described to dissipate The material of hot core 630 is ceramics.
As shown in figure 12, in the embodiment of the application, the battery core 160 includes anode pole piece 161 and cathode pole piece 162.The anode pole piece 161 and the cathode pole piece 162 are axle center with the radiating core 630, be wound into mutually it is cylindric simultaneously It is attached on the radiating core 630.
Specifically, in the production process of the Li-ion batteries piles 100, can by the radiating core 630 with it is described just Pole pole piece 161, the cathode pole piece 162 are co-wound, form the battery core 160.It is worked normally in Li-ion batteries piles 100 When, once thermal runaway phenomenon occurs, the radiating core 630 can take away the heat generated in the battery core 160.
With continued reference to Figure 11, in the embodiment of the application, the radiator 600 further includes wind-cooling heat dissipating unit 640.The wind-cooling heat dissipating unit 640 includes radiator 641 and hot channel 642.The hot channel 642 is set to described Between radiator 641 and the radiating core 630.The radiator 641 is used for and air heat-exchange.It is described to be used for the heat dissipation The heat transmission of core 630 is to the radiator 641.
Specifically, multiple cooling fins and multiple fans can be set in the radiator 641.
In the present embodiment, by the way that the radiating core 630 and the wind-cooling heat dissipating unit 640 is arranged, in the lithium-ion electric When thermal runaway phenomenon occurs for pond group 100, not only heat dissipation effect is may be implemented in the radiating core 630, can also continue the electricity The heat of generation in core 160 is exported through the hot channel 642 to the radiator 641, realizes high efficiency heat radiation.
The both ends of the radiating core 630 are respectively arranged with connection card, one end of the radiator 641 and the connection card 632151 engaging of button.The other end of the radiator 641 is fixedly connected with the radiator 641.
Specifically, the connection type of the radiating core 630 and the radiator 641 can not be limited, except through described Connection buckle 632151 connects, and can also be connected by other ways of contact.
In the embodiment of the application, the shell 10 further include top blind flange 110, backing plate at bottom 120 and it is multiple according to The siding 130 of secondary head and the tail connection.The top blind flange 110, backing plate at bottom 120 and the multiple siding 130 are jointly around formation Storage space 140.The top blind flange 110 and the backing plate at bottom 120 offer location hole 180 respectively, so that the heat dissipation The connection buckle 632151 at 630 both ends of core can stretch out the shell 10 by the location hole 180.
In the present embodiment, by the way that the location hole 180 is arranged, the radiating core 630 can be made to stretch out the shell 10, convenient for the connection of the radiating core 630 and the radiator 641.
In the embodiment of the application, 100 cooling system of Li-ion batteries piles further includes bracket 150.The branch Frame 150 is set to the storage space 140, is multiple sub- storage spaces 141 for separating the storage space 140.
The present embodiment refers to that details are not described herein again in foregoing teachings.
As shown in figure 13, in the embodiment of the application, it is empty that each described battery core 160 is set to a son storage Between 141.A wind-cooling heat dissipating unit 640 is arranged in each described sub- storage space 141.
The present embodiment refers to that details are not described herein again in foregoing teachings.In the present embodiment, by the way that the multiple son is arranged Storage space 141, and the wind-cooling heat dissipating unit 640 corresponding with the multiple sub- storage space 141, so that when described When simultaneously thermal runaway phenomenon occurs for multiple sub- storage spaces 141, multiple wind-cooling heat dissipating units 640 can be simultaneously to described Li-ion batteries piles 100 generate excellent heat dissipation effect, when thermal runaway phenomenon occurs simultaneously for the single sub- storage space 141 When, will not waste of resource, radiating mode is flexible and radiating efficiency is high, and radiating rate is fast.
The Li-ion batteries piles cooling system provided by the present application, on the one hand passes through the shell in Li-ion batteries piles 100 10 outer surface winding radiator coil tube 610 of body, forms the water-cooling unit 620, so that the Li-ion batteries piles 100 exist When thermal runaway reaction occurs, a part in the heat generated inside Li-ion batteries piles 100 is transmitted to radiator coil tube in time 610, from reducing security risk of the Li-ion batteries piles 100 under thermal runaway；On the other hand, by Li-ion batteries piles Setting is contained with the radiating core 630 of heat-conducting medium and described in connecting with the radiating core 630 inside 100 battery core 160 Radiator 641 forms the wind-cooling heat dissipating unit 640 so that the Li-ion batteries piles 100 occur thermal runaway reaction when, The water-cooling unit 620 and 640 collective effect of wind-cooling heat dissipating unit, in the Li-ion batteries piles 100 Portion is effectively cooled down, and contains the further development of 100 thermal runaway of the Li-ion batteries piles reaction.
Present invention also provides another Li-ion batteries piles thermal runaway processing system and methods.
As shown in figure 14, in the embodiment of the application, before the 100 thermal runaway system of Li-ion batteries piles includes State the Li-ion batteries piles 100, electrolyte suction unit 700, temperature-detecting device 800 and foregoing teachings that content refers to The controller 500 referred to.The Li-ion batteries piles 100 include shell 10, the multiple electricity being set in the shell 10 It core 160 and fills in the electrolyte 190 in the shell 10.The electrolyte suction unit 700 connects with the shell 10 It connects.The temperature-detecting device 800 is fixedly installed on 10 inner wall of shell.The controller 500 respectively with the electrolyte Suction unit 700 and the temperature-detecting device 800 are electrically connected.The temperature-detecting device 800 is for detecting the shell 10 Internal temperature.The controller 500 is for controlling the electricity that the electrolyte suction unit 700 is sucked out in the shell 10 Solve liquid 190.
Specifically, the electrolyte suction unit 700 can accommodate the electrolyte 190 extracted out out of described shell 10. The capacity of the electrolyte suction unit 700 is greater than or equal to the capacity of the shell 10, so that in the lithium ion battery When the thermal runaway phenomenon of high-risk coefficients occurs for group 100, the electrolyte suction unit 700 can will be in the shell 10 Whole electrolyte 190 are extracted out, and the reaction source of thermal runaway reaction is broken off.
The temperature-detecting device 800 can be temperature sensor.The temperature sensor can be multiple.When described When temperature sensor is multiple, the controller 500 can detecte multiple shells that the temperature-detecting device 800 obtains 10 internal temperature of body, and take the average value of the multiple 10 internal temperature of the shell as final detected value, so that The testing result of 10 internal temperature of shell is accurate, closing to reality value.
In the present embodiment, the Li-ion batteries piles thermal runaway processing system provided by the present application, on the one hand, by Temperature-detecting device 800 is arranged in 10 inner wall of shell of Li-ion batteries piles 100, can monitor the Li-ion batteries piles in real time 100 internal temperature situation, so that monitoring personnel can be according to the Li-ion batteries piles 100 after thermal runaway phenomenon generation Internal temperature situation, can find in time thermal runaway phenomenon and implement solution.On the other hand, the lithium ion battery The shell 10 of group 100 is connected with the electrolyte suction unit 700, and it is existing that thermal runaway can occur inside Li-ion batteries piles 100 As when, the electrolyte 190 inside 100 shell 10 of Li-ion batteries piles is extracted out by the electrolyte suction unit 700, 100 electrolyte inside 190 of Li-ion batteries piles is prevented to continue vigorous reaction, to fundamentally break off thermal runaway reaction Source is reacted, the development of thermal runaway reaction is effectively contained inside Li-ion batteries piles 100.
In the embodiment of the application, the Li-ion batteries piles 100 include the shell 10 and the bracket 150. The shell 10, including top blind flange 110, backing plate at bottom 120 and multiple sidings 130 being sequentially connected end to end.The top cover Plate 110, backing plate at bottom 120 and the multiple siding 130 surround jointly and form storage space 140.The bracket 150 is set to The storage space 140 is multiple sub- storage spaces 141 for separating the storage space 140.
The present embodiment refers to that details are not described herein again in foregoing teachings.
In the embodiment of the application, each described battery core 160 is set to a sub- storage space 141, each The battery core 160 is electrically connected with the top blind flange 110 respectively.
The present embodiment refers to that details are not described herein again in foregoing teachings.
Please continue to refer to Figure 13, in the embodiment of the application, the electrolyte suction unit 700 be it is multiple, it is each A electrolyte suction unit 700 adsorbs the electrolyte 190 in a sub- storage space 141.
In the present embodiment, by the way that multiple electrolyte suction units are arranged in each described sub- storage space 141 700, it realizes when thermal runaway reacting phenomenon occurs in the part sub- storage space 141, only it is existing thermal runaway reaction occur for suction The electrolyte 190 in the sub- storage space 141 of elephant, other normal described sub- storage spaces 141 are not by shadow Picture, the Li-ion batteries piles 100 can continue to work normally, and flexibly and reduce cost.
With continued reference to Figure 15, in the embodiment of the application, the siding 130 offers multiple apertures 138, each A electrolyte suction unit 700 is connect with an aperture 138 by transmission pipeline 191.
Specifically, the electrolyte suction unit 700 is connect by the aperture 138 with the shell 10.
Please continue to refer to Figure 14, in the embodiment of the application, the electrolyte suction unit 700 includes electrolyte Storage box 710, capacity check component 720, suction unit valve 730 and first pressure pump 740.The electrolyte storage box 710 It is connect with the aperture 138 by the transmission pipeline 191.Capacity check component 720 is fixedly installed on the electrolyte and deposits In storage tank 710.The suction unit valve 730 is set to the transmission pipeline 191.The first pressure pump 740, is set to The transmission pipeline 191.The electrolyte storage box 710 is for storing the electrolyte being sucked out from the shell 10 190.The capacity check component 720 is used to detect the appearance of the electrolyte 190 stored in the electrolyte storage box 710 Amount.The first pressure pump 740 provides power for the electrolyte 190 to be sucked out for the electrolyte suction unit 700.
Specifically, the capacity check component 720 is used to detect the electricity stored in the electrolyte storage box 710 Solve the capacity of liquid 190.710 surface of electrolyte storage box is provided with warning light.When 710 memory of electrolyte storage box When the electrolyte 190 of storage exceeds preset threshold, the warning light flashing prompts to need to clear up the electrolyte storage box 710。
As shown in figure 15, in the embodiment of the application, the Li-ion batteries piles thermal runaway processing system is also wrapped Include electrolyte recycling device 900.The electrolyte recycling device 900 passes through recycling with the multiple electrolyte suction unit 700 Pipeline 192 connects.The electrolyte recycling device 900 is used to collect the institute stored in the multiple electrolyte suction unit 700 State electrolyte 190.The electrolyte recycling device 900 is also electrically connected with the controller 500, for receiving the controller The electrolyte 190 stored in the multiple electrolyte suction unit 700 is delivered to the electrolysis by 500 control information Liquid recyclable device 900.
Specifically, the electrolyte recycling device 900 is a closed container, for collecting the electrolyte suction dress Set 700 electrolyte 190 aspirated out of described shell 10.Since the electrolyte 190 is Li-ion batteries piles hair Suction obtains after heat runaway reaction, belongs to depleted electrolytes, and the electrolyte recycling device 900 is used for the electrolysis The unified recycling of liquid 190 saves, and prevents pollution environment.
Please continue to refer to Figure 15, in the embodiment of the application, the electrolyte recycling device 900 includes electrolyte Recycling bins 910, recyclable device valve 920 and second pressure pump 930.The electrolyte recycling bins 910 and the multiple electrolyte Storage box 710 is connected by the recovery channel 192.The recyclable device valve 920 is set to the recovery channel 192.Institute Second pressure pump 930 is stated, the recovery channel 192 is set to.The electrolyte recycling bins 910 are for collecting the multiple electricity Solve the electrolyte 190 stored in liquid storage box 710.The second pressure pump 930 is for being that will be stored in the electrolyte The electrolyte 190 in storage box 710 is transmitted to the electrolyte recycling bins 910 and provides power.
In the present embodiment, the electrolyte recycling device 900 passes through the recyclable device valve 920 and second pressure The collective effect of power pump 930, is recycled to the electrolyte for the electrolyte 190 in the multiple electrolyte storage box 710 Recycling bins 910 realize that the unified of the depleted electrolytes after thermal runaway phenomenon occurs recycles, can recycle multiple electricity simultaneously The electrolyte 190 in liquid storage box 710 is solved, it is high-efficient, save man power and material.
This application provides a kind of Li-ion batteries piles thermal runaway processing systems.At the Li-ion batteries piles thermal runaway Reason system includes Li-ion batteries piles 100, electrolyte suction unit 700, temperature-detecting device 800 and controller 500.It is described Li-ion batteries piles 100 include shell 10, the multiple battery cores 160 being set in the shell 10 and fill in the shell 10 Interior electrolyte 190.The electrolyte suction unit 700 is connect with the shell 10, and the temperature-detecting device 800 is fixed It is set to 10 inner wall of shell.The Li-ion batteries piles thermal runaway processing system provided by the present application, on the one hand, in lithium Temperature-detecting device 800 is arranged in 10 inner wall of shell of ion battery group 100, can monitor the Li-ion batteries piles 100 in real time Internal temperature situation so that thermal runaway phenomenon generation after, monitoring personnel can be according to the Li-ion batteries piles 100 Internal temperature situation can find in time thermal runaway phenomenon and implement solution；On the other hand, the Li-ion batteries piles 100 shell 10 is connected with the electrolyte suction unit 700, thermal runaway phenomenon can occur inside Li-ion batteries piles 100 When, the electrolyte 190 inside 100 shell 10 of Li-ion batteries piles is extracted out by the electrolyte suction unit 700, is hindered Only 100 electrolyte inside 190 of Li-ion batteries piles continues vigorous reaction, to fundamentally break off the anti-of thermal runaway reaction Source is answered, the development of thermal runaway reaction is effectively contained inside Li-ion batteries piles 100.
The application also provides a kind of Li-ion batteries piles thermal runaway processing method.
In the embodiment of the application, the Li-ion batteries piles thermal runaway processing method includes the following steps S200 To step S240:
S200 receives 10 internal temperature of the shell that the temperature-detecting device 800 obtains.
Specifically, the temperature-detecting device 800 obtains 10 internal temperature of shell, and will be inside the shell 10 Temperature is sent to the controller 500.
S210, judges whether 10 internal temperature of shell is greater than the default thermal runaway triggering temperature.
Specifically, after the controller 500 receives 10 internal temperature of shell, the controller 500 is transferred described The pre-stored default thermal runaway triggers temperature in monitoring module.The default thermal runaway triggering temperature be the lithium from Sub- battery pack monitoring personnel is preset.Further, the controller 500 compare 10 internal temperature of shell with it is described The numerical value of default thermal runaway triggering temperature, judges whether 10 internal temperature of shell is greater than the default thermal runaway triggering temperature Degree.
S220 controls suction unit valve if 10 internal temperature of the shell is greater than the default thermal runaway and triggers temperature Door 820 is opened, and is controlled the first pressure pump 740 and is opened, controlling the electrolyte suction unit 700 will be in the shell 10 The electrolyte 190 suck the electrolyte storage box 710.
Specifically, if 10 internal temperature of the shell is greater than the default thermal runaway and triggers temperature, the controller 500 judge that thermal runaway phenomenon occurs inside the Li-ion batteries piles 100, control the first pressure pump 740 and open, control The electrolyte 190 in the shell 10 is sucked the electrolyte storage box 710 by the electrolyte suction unit 700.
S240 continues to 10 internal temperature of the shell that the temperature-detecting device 800 obtains, until the shell 10 internal temperature of body is less than the default thermal runaway and triggers temperature, controls the suction unit valve 820 and the first pressure Pump 740 is closed, and is controlled the electrolyte suction unit 700 and is stopped working.
Specifically, the controller 500 can control the pumping power of the electrolyte suction unit 700, to accelerate State the suction operation of electrolyte suction unit 700.
In the present embodiment, provided by the present application kind of Li-ion batteries piles thermal runaway processing system and method are examined by temperature 10 internal temperature of shell that device 800 obtains the Li-ion batteries piles 100 is surveyed, further, inside the shell 10 The comparison result of temperature and default thermal runaway triggering temperature, controlling the electrolyte suction unit 700 will be in the shell 10 Electrolyte 190 sucks the electrolyte suction unit 700, can effectively prevent 100 electrolyte inside 190 of Li-ion batteries piles The reaction was continued, avoids 100 internal explosion of Li-ion batteries piles and catches fire.
In the embodiment of the application, the Li-ion batteries piles thermal runaway processing method includes the following steps S230 To step S500:
S230 controls the suction if 10 internal temperature of the shell triggers temperature no more than the default thermal runaway Device valve 720 and first pressure pump 740 are closed.
Specifically, if 10 internal temperature of the shell triggers temperature, the controller no more than the default thermal runaway 500 judge that 100 internal temperature of Li-ion batteries piles has restored normally, and thermal runaway phenomenon has been effectively controlled, and can hold Subsequent 190 recovery operation of electrolyte of row.
S250 receives the electrolyte 190 in the electrolyte storage box 710 that the capacity check component 720 obtains Capacity.
Specifically, electrolyte measurement component can be set in the outer surface of the electrolyte storage box 710.The electrolyte Measurement component is connect with the capacity check component 720, so that 100 maintenance personnel of the Li-ion batteries piles can be intuitive The capacity for knowing the electrolyte 190 in the electrolyte storage box 710.
S260, judges whether the capacity of 710 electrolyte inside 190 of electrolyte storage box is greater than default electrolyte volume.
Specifically, the default electrolyte volume is artificially arranged by 100 maintenance personnel of Li-ion batteries piles.
S270, if the capacity of the electrolyte 190 is greater than the default electrolyte appearance in the electrolyte storage box 710 Amount then controls the recyclable device valve 920 and opens, and controls the second pressure pump 930 and opens, controls the electrolyte and return The electrolyte 190 in the electrolyte storage box 710 is sucked the electrolyte recycling bins 910 by receiving apparatus 900.
Specifically, if the capacity of the electrolyte 190 is greater than the default electrolyte in the electrolyte storage box 710 Capacity, then the controller 500 judge the capacity of the electrolyte 190 in the electrolyte storage box 710 it is necessary to recycle, Otherwise it will lead to 710 electrolyte inside 190 of the electrolyte storage box accumulation, influence subsequent electrolyte suction operation.
S280 continues to the electrolysis in the electrolyte storage box 710 that the capacity check component 720 obtains The capacity of liquid 190, until the capacity of the electrolyte 190 is less than the default electrolyte appearance in the electrolyte storage box 710 Amount, controls the recyclable device valve 920 and second pressure pump 930 is closed, and controls the electrolyte recycling device 900 It stops working.
Specifically, if the capacity of the electrolyte 190 is not more than the default electrolysis in the electrolyte storage box 710 Liquid capacity, then the controller 500 judges that the capacity of the electrolyte 190 in the electrolyte storage box 710 is seldom, does not have Necessity recycling, and have no effect on subsequent electrolyte suction operation.
This application provides a kind of Li-ion batteries piles thermal runaway processing methods.The lithium ion battery processing method one Aspect obtains 10 internal temperature of shell of the Li-ion batteries piles 100 by temperature-detecting device 800, according to the shell The comparison result of 10 internal temperatures and default thermal runaway triggering temperature, controls the electrolyte suction unit 700 for the shell Electrolyte 190 in 10 sucks the electrolyte suction unit 700, can effectively prevent to be electrolysed inside Li-ion batteries piles 100 The reaction was continued for liquid 190, avoids 100 internal explosion of Li-ion batteries piles and catches fire.On the other hand, it is recycled by the electrolyte The electrolyte 190 stored in the electrolyte suction unit 700 is recycled to the electrolyte recycling device by device 900 900, convenient for unified recovery processing, clean and environmental protection.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously The limitation to the application the scope of the patents therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.

Claims (10)

1. a kind of Li-ion batteries piles characterized by comprising
Shell (10), including top blind flange (110), backing plate at bottom (120) and multiple sidings (130) being sequentially connected end to end, institute It states common surround of top blind flange (110), backing plate at bottom (120) and the multiple siding (130) and forms storage space (140)；
Bracket (150) is set to the storage space (140), is that multiple sub- storages are empty for separating the storage space (140) Between (141)；
Multiple battery cores (160), each described battery core (160) are set to a sub- storage space (141)；And
Each described siding (130) offers window door (131), so that the battery core (160) passes through the window door (131) Freely enter and leave the shell (10).
2. Li-ion batteries piles according to claim 1, which is characterized in that the battery core (160) includes:
Anode pole piece (161)；
Cathode pole piece (162), the anode pole piece (161) and the cathode pole piece (162) are wound into mutually cylindrical shape；
Positive pole ear (163), be set to the battery core (160) close to the top blind flange (110) side, and with the anode Pole piece (161) electrical connection；And
Negative lug (164), be set to the battery core (160) close to the top blind flange (110) side, and with the cathode Pole piece (162) electrical connection.
3. Li-ion batteries piles according to claim 2, which is characterized in that the bottom surface of the top blind flange (110) is arranged There are multiple grooves (111), each described positive pole ear (163) connects with the groove (111), described in each Negative lug (164) is connected with a groove (111).
4. Li-ion batteries piles according to claim 3, which is characterized in that the top blind flange (110) is by conductive material It is made, is coated with insulated paint in position of the bottom surface of the top blind flange (110) in addition to the groove (111).
5. Li-ion batteries piles according to claim 4, which is characterized in that the top surface and the top of the bracket (150) The bottom surface of portion's cover board (110) is fixedly connected, the fixed company in the bottom surface of the bracket (150) and the top surface of the backing plate at bottom (120) It connects, to form the closed sub- storage space (141), the surface of the bracket (150) and the top of the backing plate at bottom (120) Face is coated with insulated paint.
6. Li-ion batteries piles according to claim 5, which is characterized in that the bracket (150) is provided with multiple buckles (151), so that each described battery core (160) and the bracket (150) are clamped.
7. Li-ion batteries piles according to claim 5, which is characterized in that in each described sub- storage space (141) It is provided with a locating clip (170), the locating clip (170) is for clamping the battery core (160), so that the battery core (160) It is fixedly connected on the shell (10).
8. Li-ion batteries piles according to claim 7, which is characterized in that the locating clip (170) includes locating shaft (171), the locating shaft (171) is fixedly connected with the backing plate at bottom (120), and the locating clip (171) is by heat-resisting and insulation Material be made.
9. the Li-ion batteries piles according to claim 6 or 8, which is characterized in that the siding (130) offers through-hole (132), the size of the through-hole (132) is greater than the size of the battery core (160), so that the battery core passes through the through-hole (132) shell (10) are freely entered and left；
The Li-ion batteries piles (100) further include shaft (133), the shaft (133) be set to the window door (131) with Between the siding (130), so that the window door (131) covers the through-hole (132).
10. Li-ion batteries piles according to claim 9, which is characterized in that further include:
Observation window (134) is embedded at the window door (131), for observing the inside shape of the Li-ion batteries piles (100) State, the observation window (134) are made of heat resistant glass.
CN201811459635.2A 2018-11-30 2018-11-30 Li-ion batteries piles Pending CN109585738A (en)

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CN115513589A (en) * 2022-08-30 2022-12-23 岚图汽车科技有限公司 Device and method for improving safety of lithium ion battery

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CN111554852A (en) * 2020-05-19 2020-08-18 湖南铃本环保科技有限公司 Electric vehicle with fire-proof device
CN115513589A (en) * 2022-08-30 2022-12-23 岚图汽车科技有限公司 Device and method for improving safety of lithium ion battery

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