CN205846168U - Large-capacity battery pack attemperating unit and the large-capacity battery pack with this device - Google Patents
Large-capacity battery pack attemperating unit and the large-capacity battery pack with this device Download PDFInfo
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- CN205846168U CN205846168U CN201620074418.1U CN201620074418U CN205846168U CN 205846168 U CN205846168 U CN 205846168U CN 201620074418 U CN201620074418 U CN 201620074418U CN 205846168 U CN205846168 U CN 205846168U
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- heat
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- battery pack
- attemperating unit
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of large-capacity battery pack attemperating unit and there is the large-capacity battery pack of this device, wherein attemperating unit includes the heat conducting sleeve being made up of insulating heat-conduction material, offer on described heat conducting sleeve and wear hole with several batteries one to one of the some battery cells in set of cells, it is further opened with in described heat conduction wearing the stuffing hole between hole at each battery, and in described stuffing hole, is filled with heat absorption phase-change material or/and extinguishing chemical material.Large-capacity battery pack is made up of multiple low capacity cylinder cell connection in series-parallel, and have employed the heat conducting sleeve of said structure.This utility model can improve the heat conductivility of high capacity cell, high capacity cell temperature is controlled in proper range, improve the temperature consistency of set of cells, pass through heat exchange, it is to avoid accumulation of heat reduces battery in set of cells or causes set of cells thermal runaway.
Description
Technical field
This utility model relates to a kind of large-capacity battery pack attemperating unit and has the large-capacity battery pack of this device, belongs to
Battery pack temperature controls technical field.
Background technology
Along with the fast development of electronic technology, high-energy-density, high performance column lithium ion battery obtains more extensive
Application.This kind of battery not only performance good and also without harmful substance, be green power supply.Its each performance nearly all reaches
The best degree that current battery can reach.But, it is high that it stores energy.Use again organic electrolyte, have on fire and blast
Danger, and really there is this kind of accident.
The main hidden danger of safety of battery is essentially from the thermal runaway of battery, and the thermal response of battery is broadly divided into reaction heat, joule
Heat and heat, these heat physics again respectively from battery that polarizes produce thermally and chemically heat production, then set safely as lithium ion battery
On meter and manufacture, the primary mechanism analyzing heat production；From material, in structure, in system, all can bring battery heat production, then excellent
Change control heat production and heat dissipation problem is design and manufactures the primary of cell safety, from system, be essentially divided into liquid body
System, gel state system, solid-state system, the manufacturing process of the every individual system of multi-hole state system and the performance bringing battery are all respectively arranged with not
With, liquid system conducts electricity very well but poor in safety, and gel state and quasi-solid-state security performance improve but on high rate performance
Bringing again new problem, many design irrationalities all can bring battery heat production to be all the factor affecting cell safety.
Large-capacity battery pack is mainly made up of battery clamp and battery cell, and wherein, battery clamp is isolation material, battery
Being shaped with the multiple battery settling hole for arranging described battery cell on fixture, described battery cell is arranged in described battery and installs
Kong Zhong, and in each battery settling hole, it is provided with the metallic spring being connected with described battery cell.
The basic reason of large-capacity battery pack blast on fire is that inside battery thermal runaway occurs.When internal temperature of battery exceedes
When 130 DEG C, it may occur that a series of fierce exothermic reaction such as the decomposition of positive electrode material, make temperature more and more higher, become thermal runaway,
And then blast on fire.The temperature the most how controlling battery has just become the major issue of cell stack designs.
In the structure of existing large-capacity battery pack, in addition to the sheet metal that spring leaf is good heat conductive, remaining is all insulation
Adiabator, heat transmission effect is the best.Therefore temperature control is bad.Battery temperature easily occurs in high current charge-discharge and hot environment
Spend high problem.
Utility model content
This utility model purpose is: in order to overcome the problems referred to above, it is provided that a kind of large-capacity battery pack attemperating unit and having
The large-capacity battery pack of this device, to control in proper range by the set of cells temperature when discharge and recharge, improves set of cells
Temperature consistency, it is to avoid accumulation of heat reduces battery in set of cells or causes thermal runaway.
The technical solution of the utility model is: a kind of large-capacity battery pack attemperating unit, it is characterised in that this device includes
The heat conducting sleeve being made up of insulating heat-conduction material, described heat conducting sleeve offers and the some battery cell one_to_one corresponding in set of cells
Several batteries wear hole.
This utility model this large-capacity battery pack attemperating unit, on the basis of technique scheme, also includes following excellent
Select scheme:
Described heat conducting sleeve is made up of the thermoplastic elastomer composite material with high-termal conductivity and high tenacity.
The described thermoplastic elastomer composite material with high-termal conductivity and high tenacity is by thermoplastic elastomer (TPE) and heat conduction
The high-heat-conductive composite material that material is mixing, its heat conductivity is at more than 0.2W/ (m DEG C).
Described thermoplastic elastomer (TPE) is thermoplastic polyurethane (TPU) or can the heat-conducting silicon rubber of direct injection mo(u)lding.
The described Heat Conduction Material any one or two kinds in alumina powder, aluminium nitride powder, the boron nitride powder with
On mixture, described alumina powder, aluminium nitride powder, the particle diameter of boron nitride powder are 5～50 microns.
The stuffing hole wearing between hole at described each battery it is further opened with on described heat conducting sleeve, and in described stuffing hole
It is filled with heat-absorbing material or/and extinguishing chemical.
Described heat-absorbing material be phase transition temperature be the heat absorption phase-change material of 50～80 DEG C.
Described battery wears the Kong Yanchu at two ends, hole and is shaped with chamfering.
The axis that the axis of described each stuffing hole and each battery wear hole is arranged in parallel, and described extinguishing chemical is dry-chemical fire extinguishing
Agent.
This set of cells that this utility model is announced, including battery clamp and be arranged on this battery clamp some
Battery cell, also includes that the attemperating unit of said structure, described each battery cell are located in each battery on described heat conducting sleeve respectively
Wear in hole, and wear the hole wall in hole with battery and be close to arrange.
The utility model has the advantages that:
1, this utility model introduces the heat conducting sleeve structure as attemperating unit on the battery pack, and on the one hand it can also lead to
Cross heat conducting sleeve and the heat that battery cell produces in charge and discharge process is passed to outside heat sinks (outside the metal of battery case
Shell), then distributed by outside heat sinks；On the other hand each battery list can be absorbed by the heat-absorbing material in stuffing hole
The heat that body produces in charge and discharge process.Thus avoid heat to concentrate in battery cell, extend the use longevity of set of cells
Life, reduces the probability that cell safety accident occurs.
2, the extinguishing chemical filled in stuffing hole can be put out a fire, by the control of fire on fire in time when set of cells is the most on fire
In the stage, further ensure the use safety of set of cells.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, required in embodiment being described below
The accompanying drawing used is briefly described, and the accompanying drawing in describing below is only embodiments more of the present utility model, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the overall structure schematic diagram of large-capacity battery pack in this utility model embodiment；
Fig. 2 is the structural representation of heat conducting sleeve in this utility model embodiment；
Wherein: 1-heat conducting sleeve, 2-battery wears hole, 3-stuffing hole, 4-battery clamp, 5-battery cell, 6-metal clips.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are for illustrating
This utility model and be not limited to limit scope of the present utility model.The implementation condition used in embodiment can be according to concrete producer
Condition do further adjustment, not marked implementation condition is usually the condition in normal experiment.
Fig. 1 shows as one specific embodiment of this large-capacity battery pack of this utility model, and it includes battery clamp 4,
It is provided with battery settling hole on battery clamp 4, battery settling hole is disposed with metal clips 6 and battery cell 5, wherein battery list
Body 5 is cylindrical lithium ion battery.
The key improvements of the present embodiment is: this set of cells also includes the heat conducting sleeve 1 being made up of insulating heat-conduction material, described
Offer on heat conducting sleeve 1 and wear hole 2 with several batteries one to one of the some battery cells in set of cells.Described each battery
Monomer 5 is located in each battery on described heat conducting sleeve 1 respectively and wears in hole 2, and wears the hole wall in hole 2 with battery and be close to arrange.
When this battery set charge/discharge, the heat that each battery cell 5 produces will be by heat conducting sleeve 1 directly to the most very fast
Ground transmission, distributes until delivering to extraneous heat dissipation equipment (such as the metal shell of battery case).Substantially increase dissipating of set of cells
Hot property, controls battery pack temperature in proper range, it is to avoid accumulation of heat.
In this example, described heat conducting sleeve 1 is made up of the thermoplastic elastomer composite material with high-termal conductivity and high tenacity.
The described thermoplastic elastomer composite material with high-termal conductivity and high tenacity is by thermoplastic elastomer (TPE) and heat conduction
The high-heat-conductive composite material that material is mixing, its heat conductivity, can more preferably 1.2W/ at more than 0.2W/ (m DEG C)
More than (m DEG C).Wherein, described thermoplastic elastomer (TPE) is thermoplastic polyurethane (TPU) or can the thermal conductive silicon of direct injection mo(u)lding
Rubber, described Heat Conduction Material (the most aforementioned heat conductivity is at the Heat Conduction Material of more than 0.2W/ (m DEG C)) selected from alumina powder,
Any one or two or more mixture, described alumina powder, aluminum nitride powder in aluminium nitride powder, boron nitride powder
End, the particle diameter of boron nitride powder are 5～50 microns or other materials.
As in figure 2 it is shown, additionally, this example is also shaped with on described heat conducting sleeve 1 wears filling out between hole 2 at described each battery
Material hole 3, and it is filled with heat-absorbing material in described stuffing hole 3.When set of cells is in charging and discharging state, each battery cell 5 produces
Raw heat, a part is transferred to the heat-absorbing material in stuffing hole 3 by heat conducting sleeve 1, is absorbed by heat-absorbing material；Some
Heat passes to the heat dissipation equipment (such as the metal shell of battery case) in the external world through heat conducting sleeve 1 and distributes.Thus by each electricity
The temperature of pond monomer controls within the specific limits, it is ensured that the service life of battery, and reduce that cell safety accident occurs can
Can property.
And, for heat absorption phase-change material, (this heat absorption phase-change material is closed in stuffing hole to heat-absorbing material described in this example
In).This heat absorption phase-change material is generally solid-state under normal conditions, and it can undergo phase transition reaction when absorbing abundant heat, by
Solid-state becomes liquid, and during phase transformation, this heat absorption phase-change material can absorb substantial amounts of heat without a liter high-temperature.
The heat absorption phase-change material that heat in set of cells is transferred in stuffing hole 3 by heat conducting sleeve 1, by heat absorption phase-change material
Absorb, undergo phase transition reaction when the heat that the phase-change material that absorbs heat absorbs is sufficiently large, solid-state become liquid, and in this phase transformation
During, heat absorption phase-change material absorption only absorption heat is without a liter high-temperature, thus the temperature of each battery cell is controlled
Within the specific limits.
Described heat absorption phase-change material can use paraffin, metal alloy, crystalline hydrate salt or fuse salt, and its phase transition temperature is
Fortunately in the range of 50～80 DEG C (more preferably 60～80 DEG C).
The filling of heat-absorbing material for convenience, the axis of each stuffing hole 3 described in this example and each battery wear the axis in hole 2
It is arranged in parallel.
In order to allow heat-absorbing material in each stuffing hole 3 can the heat of uniform pickup each battery cell 5 about,
To ensure the temperature homogeneity of each battery cell 5, this example have employed following structure: four batteries of arbitrary neighborhood wear hole 2
Between middle position be provided with a described stuffing hole 3.
In this example, after described heat-absorbing material is made into cylindrical structural in advance, more fixing it is filled in described stuffing hole 3
In.
In order to allow the heat-absorbing material in each stuffing hole 3 can uniform pickup each cylindrical battery monomer 5 about
Heat, to ensure the temperature homogeneity of each cylindrical battery monomer 5, this example have employed following structure: the four of arbitrary neighborhood
Individual battery wears the middle position between hole 2 and is provided with a described stuffing hole 3, as shown in Figure 1.
Moreover, it is also possible to fill extinguishing chemical in described stuffing hole 3 simultaneously, thus go out in time when set of cells is the most on fire
Fire, by the control of fire in the stage on fire.
So that described heat conducting sleeve 1 can be set in outside a battery cell 5 more conveniently, this example is worn at described battery
The Kong Yanchu at trepanning 2 two ends is shaped with chamfering.During assembling, each battery wears each that hole 2 is respectively aligned to and is set in set of cells
Outside cylindrical battery monomer 5.
And, we can also fill extinguishing chemical in described stuffing hole 3 simultaneously, thus set of cells unexpected the most on fire time and
Time fire extinguishing, by the control of fire in the stage on fire.Certainly, we only can also fill extinguishing chemical in stuffing hole 3 and be not filled with
State heat-absorbing material.Described extinguishing chemical is preferably powder extinguishing agent.
Visible, described heat conducting sleeve 1 in this example can be considered the attemperating unit of this set of cells.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow people will appreciate that
Content of the present utility model is also implemented according to this, can not limit protection domain of the present utility model with this.All new according to this practicality
Equivalent transformation that the spirit of type main technical schemes is done or modification, all should contain protection domain of the present utility model it
In.
Claims (8)
1. a large-capacity battery pack attemperating unit, it is characterised in that this device includes the heat conducting sleeve being made up of insulating heat-conduction material
(1), described heat conducting sleeve (1) offers wear hole with several batteries one to one of the some battery cells in set of cells
(2)；It is further opened with on described heat conducting sleeve (1) being positioned at the stuffing hole (3) that described each battery wears between hole (2), and fills out described
Material hole (3) is filled with heat-absorbing material or/and extinguishing chemical.
Large-capacity battery pack attemperating unit the most according to claim 1, it is characterised in that: described heat conducting sleeve (1) is by having
The thermoplastic elastomer composite material of high-termal conductivity and high tenacity is made.
Large-capacity battery pack attemperating unit the most according to claim 2, it is characterised in that there is described in: high-termal conductivity and height
The thermoplastic elastomer composite material of toughness is the high-heat-conductive composite material mixing by thermoplastic elastomer (TPE) and Heat Conduction Material,
Its heat conductivity is at more than 0.2W/ (m DEG C).
Large-capacity battery pack attemperating unit the most according to claim 3, it is characterised in that: described thermoplastic elastomer (TPE) is heat
Plastic polyurethane or can the heat-conducting silicon rubber of direct injection mo(u)lding.
Large-capacity battery pack attemperating unit the most according to claim 1, it is characterised in that: described heat-absorbing material is phase alternating temperature
Degree is the heat absorption phase-change material of 50～80 DEG C.
Large-capacity battery pack attemperating unit the most according to claim 1, it is characterised in that: described battery wears hole (2) two
The Kong Yanchu of end is shaped with chamfering.
Large-capacity battery pack attemperating unit the most according to claim 1, it is characterised in that: the axle of described each stuffing hole (3)
Line and each battery wear the axis in hole (2) and are arranged in parallel, and described extinguishing chemical is powder extinguishing agent.
8. a large-capacity battery pack, including battery clamp (4) and some battery cells of being arranged on this battery clamp
(5), it is characterised in that: also including the attemperating unit as described in arbitrary in claim 1～7, described each battery cell (5) is respectively
It is located in the upper each battery of described heat conducting sleeve (1) to wear in hole (2), and wears the hole wall in hole (2) with battery and be close to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620074418.1U CN205846168U (en) | 2016-01-26 | 2016-01-26 | Large-capacity battery pack attemperating unit and the large-capacity battery pack with this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620074418.1U CN205846168U (en) | 2016-01-26 | 2016-01-26 | Large-capacity battery pack attemperating unit and the large-capacity battery pack with this device |
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| Publication Number | Publication Date |
|---|---|
| CN205846168U true CN205846168U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620074418.1U Active CN205846168U (en) | 2016-01-26 | 2016-01-26 | Large-capacity battery pack attemperating unit and the large-capacity battery pack with this device |
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| CN (1) | CN205846168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552472A (en) * | 2016-01-26 | 2016-05-04 | 苏州安靠电源有限公司 | High-capacity battery pack temperature control apparatus and high-capacity battery pack with same |
| CN110832694A (en) * | 2017-07-24 | 2020-02-21 | 三洋电机株式会社 | Battery pack and method for manufacturing same |
-
2016
- 2016-01-26 CN CN201620074418.1U patent/CN205846168U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552472A (en) * | 2016-01-26 | 2016-05-04 | 苏州安靠电源有限公司 | High-capacity battery pack temperature control apparatus and high-capacity battery pack with same |
| CN110832694A (en) * | 2017-07-24 | 2020-02-21 | 三洋电机株式会社 | Battery pack and method for manufacturing same |
| CN110832694B (en) * | 2017-07-24 | 2023-12-29 | 松下新能源株式会社 | Battery pack and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230518 Address after: Room J2243, No. 6, Lane 129, Huajiang Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Qike Network Technology Co.,Ltd. Address before: No. 29, Huahong street, Suhong East Road, Suzhou Industrial Park, Jiangsu Province, 215026 Patentee before: ANKAO (SUZHOU) ENERGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |