CN105552479A - Power lithium battery module - Google Patents
Power lithium battery module Download PDFInfo
- Publication number
- CN105552479A CN105552479A CN201610127138.7A CN201610127138A CN105552479A CN 105552479 A CN105552479 A CN 105552479A CN 201610127138 A CN201610127138 A CN 201610127138A CN 105552479 A CN105552479 A CN 105552479A
- Authority
- CN
- China
- Prior art keywords
- phase change
- heat
- lithium battery
- change device
- power lithium
- 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
Links
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to an energy storage device field especially relates to a power lithium battery module, including phase change device, power lithium battery monomer, module shell and heat-transfer device, phase change device sets up one side of module shell, heat-transfer device sets up in the module shell, and extend to phase change device, power lithium battery monomer sets up in the module shell, and with the heat-transfer device laminating, phase change device includes main part and solid-liquid phase change material, be provided with a plurality of absorption holes in the main part, solid-liquid phase change material fills adsorb downtheholely, it can adsorb to be in liquid to adsorb the hole solid-liquid phase change material. The power lithium battery module provided by the application can reduce the distribution area of the phase change device as much as possible and limit the flow of the solid-liquid phase change material in a liquid state, so that the probability that the solid-liquid phase change material corrodes other components in the battery module can be obviously reduced.
Description
[technical field]
The application relates to energy storage device field, particularly relates to a kind of power lithium battery module.
[background technology]
Dynamic lithium battery exists when hot operation that temperature rise is too high causes the potential safety hazards such as thermal runaway; Dynamic lithium battery exists when low-temperature working analyses lithium and energy can not play equivalent risk completely; Operationally also there is temperature distributing disproportionation in power lithium battery module, causes the risk of battery module reduction in useful life.Prior art carries out temperature control by liquid cooling mode and cooling air mode usually.Liquid cooling temperature control normally adds liquid cooling apparatus in power lithium battery module, adopts and is similar to heat exchanger temperature control method, controls the temperature of power lithium battery module.It needs additionally to add the parts such as flow channel for liquids, water pump.Gas temperature control normally adds airflow path in power lithium battery module, adopts and is similar to heat exchanger temperature control method, controls the temperature of power lithium battery module.And also need the parts additionally adding airflow path, air compressor and expansion valve.So no matter be liquid cooling mode or cooling air mode, all need additionally to increase the parts such as power transmission and fluid communication means; And these parts are once malfunctioning, then this cooling system no longer has temperature control function.The failure risk of these parts and then add the security risk of electric motor car.
Existing new temperature control method is phase-change temperature control, and phase-change temperature control without the need to increasing extra power set, but adds the phase change material of solid liquid phase transformation, the temperature of controlled braking force battery module in power battery module.But solid liquid phase transformation before and after phase change material phase transformation, can be there is, power battery module needs sealing to prevent phase change material from flowing; This manufacture craft to power battery module proposes challenge greatly.In addition, there is the corrosion risk to power battery module in the phase change material of post liquefaction.
[summary of the invention]
The object of the application is to provide a kind of power battery module, effectively can prevent phase change material from flowing arbitrarily in module and cause the corrosion of module.
For achieving the above object, the application adopts following technical scheme:
This application provides a kind of power lithium battery module, comprise phase change device, dynamic lithium battery monomer, module shell and heat-transfer device,
Described phase change device is arranged on the side of described module shell, and described heat-transfer device is arranged in described module shell, and extends to described phase change device, and described dynamic lithium battery monomer is arranged in described module shell, and fits with described heat-transfer device,
Described phase change device comprises main body and solid-liquid phase change material, and described main body is provided with some adsorption holes, and described solid-liquid phase change material is filled in described adsorption hole, and described adsorption hole can adsorb the described solid-liquid phase change material being in liquid state.
Preferably, described module shell surrounds upper lower open mouth structure jointly by two end plates and two blocks of side plates, and described phase change device is arranged on the bottom of described module shell.
Preferably, described module shell comprises some monomers and holds chamber, and adjacent two described monomers hold between chamber all to be separated by described heat-transfer device, and dynamic lithium battery monomer described in every block embeds a described monomer respectively and holds in chamber.
Preferably, described heat-transfer device comprises heat-conducting layer and intercepts the thermal insulation layer that adjacent two described monomers hold heat transmission between chamber, and described heat-conducting layer is arranged on the both sides of described thermal insulation layer, and is connected with described phase change device.
Preferably, the bottom of described heat-transfer device extends to the inside of described phase change device.
Preferably, described main body is porous honeycomb skeleton structure or network structure.
Preferably, the aperture of described adsorption hole is 1nm ~ 1000nm.
Preferably, also comprise heat-conducting piece, described heat-conducting piece and described main body are fitted.
Preferably, described main body and described heat-conducting piece are intervally arranged.
Preferably, also comprise reinforcement, described reinforcement covers the surface of described phase change device.
Compared with prior art, the present invention has following beneficial effect: phase change device is arranged on the side of module shell by the power lithium battery module that the application provides, and by heat-transfer device, the heat in battery modules is passed on phase change device, the distributed areas of phase change device can be reduced as far as possible, utilize the adsorption hole absorption solid-liquid phase change material of phase change device self simultaneously, make it also arbitrarily can not flow in module shell in a liquid state, therefore, it is possible to significantly reduce the probability of other parts in solid-liquid phase change material corrosion cell module.
[accompanying drawing explanation]
The overall structure schematic diagram of the power lithium battery module that Fig. 1 provides for the embodiment of the present application.
The internal structure schematic diagram of the phase change device that Fig. 2 provides for the embodiment of the present application.
Fig. 3 for main body that the embodiment of the present application provides be the structural representation of porous honeycomb skeleton structure.
Fig. 4 for the main body that the embodiment of the present application provides be cancellated structural representation.
The internal structure schematic diagram of the power lithium battery module that Fig. 5 provides for the embodiment of the present application.
Reference numeral:
10-phase change device;
100-main body;
100a-adsorption hole;
102-solid-liquid phase change material;
104-heat-conducting piece;
106-reinforcement;
20-dynamic lithium battery monomer;
30-module shell;
300-end plate;
302-side plate;
40-heat-transfer device.
[embodiment]
Present embodiments provide a kind of power lithium battery module, as shown in Figure 1, comprise phase change device 10, dynamic lithium battery monomer 20, module shell 30 and heat-transfer device 40.Wherein, phase change device 10 can be arranged on any side of module shell 30, to reduce the occupied area of phase change device 10.Generally, module shell 30 surrounds by two end plates 300 and two blocks of side plates 302 structure that is gone up lower open mouth jointly, now preferably phase change device is arranged on the bottom of module shell 30, even if there is the inside that leakage situation also can not flow directly to battery modules 30 like this.Because phase change device 10 is arranged on the side of battery modules 30, therefore only rely on and self cannot carry out heat exchange with other position in battery modules 30 timely, therefore heat-transfer device 40 is arranged on the inside of module shell 30 by the present embodiment, and extend to phase change device 10, dynamic lithium battery monomer 20 to be arranged in module shell 30 and to fit with heat-transfer device 40, so that the heat that dynamic lithium battery monomer 20 can be made to produce is passed on phase change device 10 in time.
As shown in Figures 2 to 4, phase change device 10 comprises main body 100 and solid-liquid phase change material 102, also comprises heat-conducting piece 104 and reinforcement 106.Main body 100 is provided with some adsorption hole 100a, and solid-liquid phase change material 102 is filled in these adsorption holes 100a.In the present embodiment, adsorption hole 100a, except for holding except solid-liquid phase change material, also will have an important function, and that is exactly can adsorb to be in liquid solid-liquid phase change material 102.
The solid-liquid phase change material 102 being in liquid condition self has surface tension, when the material of adsorption hole 100a, shape and aperture satisfy condition, the surface tension effects of the solid-liquid phase change material 102 of liquid condition just can overcome Action of Gravity Field, thus the solid-liquid phase change material 102 of liquid condition still can be stably present in adsorption hole 100a, and adsorption hole 100a can not be flowed out.Utilize this characteristic, just the adsorption hole 100a of applicable condition can be adopted to coordinate suitable solid-liquid phase change material 102, and when solid-liquid phase change material 102 is solid-state, it is in adsorption hole 100a, and after solid-liquid phase change material 102 heat absorption becomes liquid state, also can not arbitrarily flow out adsorption hole 100a.
Therefore, the power lithium battery module of this phase change device is adopted just without the need to worrying that the phase change material of post liquefaction exists the risk of corroding other parts in power battery module.
Solid-liquid phase change material 102 can adopt homogenous material, as paraffin, two or more materials also can be adopted to mix, such as, paraffin and the additive with conductive force, fire retardation, reinforcing material plasticity or elastic reaction are carried out compound.
For the structure of main body, generally can adopt porous honeycomb skeleton structure (see Fig. 3), such as porous graphite material, or also can adopt network structure (see Fig. 4), such as, there is netted organic rubber material.This bi-material all has great specific area and absorption affinity, can fill a large amount of solid-liquid phase change materials 102.The aperture of adsorption hole 100a generally at nanoscale and micron order, as within the scope of 1nm ~ 1000nm.If aperture is excessive, easily cause adsorption capacity to weaken, aperture is too small be difficult to again shaping.
Because specific area and absorption affinity are mainly considered in the selection of main body 100, therefore the thermal transmission coefficient of main body 100 may be just lower.The too low meeting of thermal transmission coefficient makes the passing time of heat extend, and may liquefy already, and distant solid-liquid phase change material 102 still keeps solid-state near the solid-liquid phase change material 102 of heat production source.This situation will be more unfavorable when tackling in the short time and concentrating fulminant heat production, may cause serious consequence.In the present embodiment, heat just can be passed to each position of main body 100, especially distant with heat production source position by the setting of heat-conducting piece 104 rapidly from heat production source.Heat-conducting piece 104 generally adopts the good material of conductive coefficient, such as metal etc. are made, therefore, it is possible to significantly shorten the passing time of heat, make position distant with heat production source in main body 100 also can accept heat very soon and be lowered the temperature by the liquefaction of solid-liquid phase change material 102.That transmits to make heat is more evenly extensive, and main body 100 and heat-conducting piece 104 preferably adopt the mode be intervally arranged to arrange.
In the present embodiment, the effect of reinforcement 106 is the overall construction intensity improving phase change device 10, can bear stronger impact and load.Reinforcement 106 can adopt the such as mode such as tower structure or local strengthening, but comparatively preferred scheme is the surface all covering phase change device 10, and other such as main body 100, solid-liquid phase change material 102 and heat-conducting piece 104 etc. are all wrapped in inside.Such one side can make phase change device 10 obtain omnibearing strengthening, solid-liquid phase change material 102 can wrap up by second aspect completely, prevents it from flowing to the outside of phase change device 10 further, in addition, the Connection Step of main body 100 and heat-conducting piece 104 can also be saved, simplified manufacturing technique.Reinforcement 106 can adopt metal material, such as metallic aluminum material, also can adopt non-metallic material, such as carbon fibre material.
As shown in Figure 1, also directly can be separated into some monomers in module shell 30 in the present embodiment and hold chamber (in figure non-label), adjacent two monomers hold between chamber all to be separated by heat-transfer device 40, every block dynamic lithium battery monomer 20 embeds a monomer respectively and holds in chamber, just the both sides of every block dynamic lithium battery monomer 20 can be made all by heat-transfer device 40, heat can be passed to phase change device 10, therefore, it is possible to significantly improve cooling effect.Further, heat-transfer device 40 can be set to the structure possessing different conductive coefficient at different directions.Particularly, heat-transfer device 40 can be made to point on direction (hereinafter referred to as normal direction) that another monomer holds chamber and possess lower conductive coefficient being held chamber by a monomer, such as at 0.2W/ (mK) below, thus heat cannot to be held between chamber at adjacent two monomers by heat-transfer device 40 substantially transmit.Meanwhile, heat-transfer device 40 is made to possess higher conductive coefficient perpendicular on the extension direction (hereinafter referred to as radial direction) of normal direction, such as at more than 100W/ (mK), thus heat can be radially passed on phase change device 10 by heat-transfer device 40 rapidly.
The scheme realizing the above-mentioned effect of heat-transfer device 40 is a lot, such as heat-transfer device 40 comprises the heat-conducting layer of high thermal conductivity coefficient and the thermal insulation layer of low thermal conductivity, thermal insulation layer is intercepted adjacent two monomers and hold chamber, heat-conducting layer is then arranged on the both sides of thermal insulation layer, and is connected with phase change device.
At phase change device 10, there is reinforcement 106, especially when there is the reinforcement 106 that the relatively poor nonmetallic materials of heat conductivility make, in order to improve heat transfer efficiency, heat-transfer device 40 can consider the inside directly bottom being extended to phase change device 10, both can improve heat transfer efficiency in this way, the connection between heat-transfer device 40 and phase change device 10 also can be made more tight simultaneously.As shown in Figure 5, when phase change device 10 self does not arrange heat-conducting piece 104, the bottom of heat-transfer device 40 can adopt the bifurcation structure of T-shaped or other shape to improve the overlay area of heat-transfer device 40.And when phase change device 10 self has been provided with heat-conducting piece 104, heat-transfer device 40 can directly be connected with heat-conducting piece 104.
Relative to existing liquid cooling mode and cooling air mode, the present invention does not need extra power consumption device, as air-cooled compressor, and the pump etc. of liquid cooling.The power lithium battery module that the present embodiment provides simultaneously can reduce the distributed areas of phase change device 10 as far as possible and limit solid-liquid phase change material 102 flowing in a liquid state, therefore, it is possible to significantly reduce the probability of other parts in solid-liquid phase change material 102 corrosion cell module.
In sum, these are only preferred embodiment of the present invention, should not limit the scope of the invention with this, namely every simple equivalence done according to claims of the present invention and description changes and modifies, and all still should belong to the scope that patent of the present invention contains.
Claims (10)
1. a power lithium battery module, is characterized in that, comprises phase change device, dynamic lithium battery monomer, module shell and heat-transfer device,
Described phase change device is arranged on the side of described module shell, and described heat-transfer device is arranged in described module shell, and extends to described phase change device, and described dynamic lithium battery monomer is arranged in described module shell, and fits with described heat-transfer device,
Described phase change device comprises main body and solid-liquid phase change material, and described main body is provided with some adsorption holes, and described solid-liquid phase change material is filled in described adsorption hole, and described adsorption hole can adsorb the described solid-liquid phase change material being in liquid state.
2. power lithium battery module as claimed in claim 1, it is characterized in that, described module shell surrounds upper lower open mouth structure jointly by two end plates and two blocks of side plates, and described phase change device is arranged on the bottom of described module shell.
3. power lithium battery module as claimed in claim 2, it is characterized in that, described module shell comprises some monomers and holds chamber, and adjacent two described monomers hold between chamber all to be separated by described heat-transfer device, and dynamic lithium battery monomer described in every block embeds a described monomer respectively and holds in chamber.
4. power lithium battery module as claimed in claim 3, it is characterized in that, described heat-transfer device comprises heat-conducting layer and intercepts the thermal insulation layer that adjacent two described monomers hold heat transmission between chamber, and described heat-conducting layer is arranged on the both sides of described thermal insulation layer, and is connected with described phase change device.
5. the power lithium battery module as described in any one of Claims 1-4, is characterized in that, the bottom of described heat-transfer device extends to the inside of described phase change device.
6. power lithium battery module as claimed in claim 1, it is characterized in that, described main body is porous honeycomb skeleton structure or network structure.
7. power lithium battery module as claimed in claim 1, it is characterized in that, the aperture of described adsorption hole is 1nm ~ 1000nm.
8. phase change device as claimed in claim 1, it is characterized in that, also comprise heat-conducting piece, described heat-conducting piece and described main body are fitted.
9. phase change device as claimed in claim 8, it is characterized in that, described main body and described heat-conducting piece are intervally arranged.
10. the phase change device as described in any one of claim 6 to 9, is characterized in that, also comprises reinforcement, and described reinforcement covers the surface of described phase change device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127138.7A CN105552479A (en) | 2016-03-07 | 2016-03-07 | Power lithium battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127138.7A CN105552479A (en) | 2016-03-07 | 2016-03-07 | Power lithium battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105552479A true CN105552479A (en) | 2016-05-04 |
Family
ID=55831527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610127138.7A Pending CN105552479A (en) | 2016-03-07 | 2016-03-07 | Power lithium battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105552479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329027A (en) * | 2016-11-07 | 2017-01-11 | 天津力神特种电源科技股份公司 | High-safety lithium ion battery pack |
| CN107146924A (en) * | 2017-05-24 | 2017-09-08 | 华霆（合肥）动力技术有限公司 | A kind of heat abstractor and supply unit |
| CN111492532A (en) * | 2018-10-12 | 2020-08-04 | 株式会社Lg化学 | Battery module |
| US11404734B2 (en) * | 2019-09-10 | 2022-08-02 | Yazaki Corporation | Vehicle battery pack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958439A (en) * | 2010-09-16 | 2011-01-26 | 赛恩斯能源科技有限公司 | Battery bank with thermosistor |
| CN102117945A (en) * | 2009-12-31 | 2011-07-06 | 财团法人工业技术研究院 | Heat dissipation and thermal runway dispersion protection structure in cell system |
| CN102364747A (en) * | 2011-11-11 | 2012-02-29 | 上海鸣源新能源科技有限公司 | Storage battery temperature management system based on phase change material |
| CN103178314A (en) * | 2013-02-28 | 2013-06-26 | 广东工业大学 | Battery heat management equipment with efficient balanced radiating function and electric heating function |
| CN205406680U (en) * | 2016-03-07 | 2016-07-27 | 宁德时代新能源科技股份有限公司 | Power lithium battery module |
-
2016
- 2016-03-07 CN CN201610127138.7A patent/CN105552479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117945A (en) * | 2009-12-31 | 2011-07-06 | 财团法人工业技术研究院 | Heat dissipation and thermal runway dispersion protection structure in cell system |
| CN101958439A (en) * | 2010-09-16 | 2011-01-26 | 赛恩斯能源科技有限公司 | Battery bank with thermosistor |
| CN102364747A (en) * | 2011-11-11 | 2012-02-29 | 上海鸣源新能源科技有限公司 | Storage battery temperature management system based on phase change material |
| CN103178314A (en) * | 2013-02-28 | 2013-06-26 | 广东工业大学 | Battery heat management equipment with efficient balanced radiating function and electric heating function |
| CN205406680U (en) * | 2016-03-07 | 2016-07-27 | 宁德时代新能源科技股份有限公司 | Power lithium battery module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329027A (en) * | 2016-11-07 | 2017-01-11 | 天津力神特种电源科技股份公司 | High-safety lithium ion battery pack |
| CN107146924A (en) * | 2017-05-24 | 2017-09-08 | 华霆（合肥）动力技术有限公司 | A kind of heat abstractor and supply unit |
| CN111492532A (en) * | 2018-10-12 | 2020-08-04 | 株式会社Lg化学 | Battery module |
| US11404734B2 (en) * | 2019-09-10 | 2022-08-02 | Yazaki Corporation | Vehicle battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102544622B (en) | Power battery cooling system based on foam metal/composite phase change material | |
| CN103904267B (en) | Based on the battery thermal management system of capillary pumped two-phase fluid loop and phase-change material Coupling Thermal control techniques | |
| CN103682517A (en) | Combined heat dissipation device of power battery pack | |
| CN105552479A (en) | Power lithium battery module | |
| Lin et al. | Research progress of phase change storage material on power battery thermal management | |
| CN109686887A (en) | A kind of cylinder power battery liquid cooling heat management structure for preventing thermal runaway from extending | |
| CN102376997B (en) | Battery system with temperature adjusting device | |
| CN203503756U (en) | Thermal management system of power battery based on flat plate loop heat pipes | |
| CN203367447U (en) | Battery pack two-way temperature regulating system based on inorganic quantum superconducting heat pipe | |
| CN213071218U (en) | Novel thermal management device for vehicle lithium battery | |
| CN104538700A (en) | Flat micro heat pipe cooling device inserted in power battery for vehicle and cooling method of device | |
| CN108511850B (en) | Power battery composite thermal management system and method based on natural circulation | |
| CN103996888A (en) | Honeycomb-shaped liquid cooling device of lithium battery | |
| CN203644903U (en) | Composite heat dissipation device for traction battery pack | |
| CN202384449U (en) | Power battery cooling system based on foam metal/composite phase-change materials | |
| CN111799529B (en) | Battery thermal management system and management method based on high-thermal-conductivity phase-change material | |
| CN108808160A (en) | High intensity heat transfer structure for cooling down power battery | |
| Dong et al. | Review of latent thermal energy storage systems for solar air‐conditioning systems | |
| CN110259768B (en) | Temperature control device of hydraulic system | |
| CN103367837A (en) | Power battery thermal management system based on flat loop heat pipes | |
| CN110247001A (en) | A kind of heat management battery combination device | |
| CN105390638B (en) | Battery modules temperature difference balancer | |
| CN108321448B (en) | Efficient rail transit energy storage thermal management system and thermal management method thereof | |
| CN205406680U (en) | Power lithium battery module | |
| CN209487579U (en) | A kind of heat management battery combination device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
|
| RJ01 | Rejection of invention patent application after publication |