CN105552446A - Battery fixture having temperature control protection function and high-capacity battery pack - Google Patents
Battery fixture having temperature control protection function and high-capacity battery pack Download PDFInfo
- Publication number
- CN105552446A CN105552446A CN201610052406.3A CN201610052406A CN105552446A CN 105552446 A CN105552446 A CN 105552446A CN 201610052406 A CN201610052406 A CN 201610052406A CN 105552446 A CN105552446 A CN 105552446A
- Authority
- CN
- China
- Prior art keywords
- battery
- heat
- temperature control
- battery pack
- heat absorption
- 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
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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
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
-
- 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
Abstract
The invention discloses a battery fixture having a temperature control protection function and a high-capacity battery pack using the battery fixture. The battery fixture comprises a fixture body, wherein a plurality of battery installation holes are formed on the fixture body and used for placing single batteries, the fixture body is made of insulated heat conduction material, packing holes are further formed on the fixture body and arranged among the battery installation holes, and the packing holes are filled with heat absorption phase-changing materials or/and fire extinguishing agent materials. The high-capacity battery pack is mainly formed by connecting a plurality of low-capacity cylindrical single batteries in series and in parallel and also adopts the battery fixture with the above structure. By the battery fixture, the heat conduction performance of the high-capacity battery pack can be improved, the temperature of the battery pack is controlled within an appropriate range, the temperature consistency of the battery pack is improved, and through heat exchange, the heat is prevented from being accumulated in the battery pack to reduce the service lifetime of the battery or cause thermal runaway of the battery pack.
Description
Technical field
The present invention relates to a kind of battery clamp and the large-capacity battery pack with temperature control defencive function, belong to cylinder type lithium battery group technical field of temperature control.
Background technology
Along with the fast development of electronic technology, high-energy-density, high performance column lithium ion battery obtains to be applied widely.This kind of battery not only performance is good but also do not contain hazardous substance, and is green power supply.Its each performance nearly all reaches the best degree that current battery can reach.But its storage power is high.Use organic electrolyte again, have danger that is on fire and blast, and this kind of accident occurred really.
The main hidden danger of safety of battery is mainly from the thermal runaway of battery, the thermal response of battery is mainly divided into reaction heat, Joule heat and polarization heat, these are hot again respectively from physics heat production and the chemical heat production of battery, so as on lithium ion battery safe design and manufacture, the primary mechanism analyzing heat production, from material, in structure, in system, battery heat production is brought in capital, so optimal control heat production and heat dissipation problem are the primary of Design and manufacture cell safety, substantially liquid system is divided into system, gel state system, solid-state system, the manufacturing process of the every individual system of multi-hole state system and the performance that battery brings all is had nothing in common with each other, liquid system conducts electricity very well but poor in fail safe, gel state and the solid-state security performance of standard improve but bring again new problem on high rate performances, many-sided design irrationality all can bring battery heat production to be all the factor affecting cell safety.
Jumbo Li-ion batteries piles is formed primarily of battery clamp and battery cell, wherein, battery clamp is isolation material, battery clamp is shaped with the multiple battery settling hole for arranging described battery cell, described battery cell is arranged in described battery settling hole, and in each battery settling hole, be provided with the metallic spring be connected with described battery cell.
The basic reason of large-capacity battery pack blast on fire is that thermal runaway appears in inside battery.When internal temperature of battery is more than 130 DEG C, a series of fierce exothermic reactions such as the decomposition of positive electrode material can be there is, make temperature more and more higher, become thermal runaway, and then blast on fire.Therefore the major issue that the temperature how controlling battery has just become large-capacity battery pack to design.
In the structure of existing large-capacity battery pack, except the sheet metal that spring leaf is good heat conductive, all the other are all insulation and thermal insulation materials, and heat transmission effect is not good.Therefore temperature control is bad.The problem that battery temperature is too high is easily there is in high current charge-discharge and hot environment.
Summary of the invention
The present invention seeks to: in order to overcome the problems referred to above; there is provided a kind of there is the battery clamp of temperature control defencive function and use the large-capacity battery pack of this battery clamp; to improve the heat conductivility of large-capacity battery pack; battery pack temperature is controlled in proper range; improve the temperature consistency of battery pack; by heat exchange, accumulation of heat is avoided in battery pack, to reduce battery or cause battery pack thermal runaway.
Technical scheme of the present invention is: a kind of battery clamp with temperature control defencive function, comprises chuck body, and described chuck body is shaped with the some battery settling hole for arranging battery cell, described chuck body is made up of the insulating heat-conduction material of high tenacity.
This battery clamp of the present invention, on the basis of technique scheme, also comprises following preferred version:
Described insulating heat-conduction material is fire-resistant copolyesters nylon, and the fire-retardant rank of its UL94 reaches V0 level, and conductive coefficient is at more than 0.2W/ (m DEG C).
Middle position in described chuck body, between four battery settling hole of arbitrary neighborhood is provided with stuffing hole, and is filled with heat-absorbing material or/and extinguishing chemical in described stuffing hole.
Described heat-absorbing material is heat absorption phase-change material.
Described heat absorption phase-change material has two kinds, and these two kinds heat absorption phase-change material alternately arrangements in described chuck body, the phase transition temperature of these two kinds heat absorption phase-change materials is respectively 50 ~ 80 DEG C, 80 ~ 100 DEG C.
The heat absorption phase-change material of described phase transition temperature 50 ~ 80 DEG C is paraffin, and the heat absorption phase-change material of described phase transition temperature 80 ~ 100 DEG C is the copolymer of the hard section of polyamide and soft section of aliphatic polyether.
Described heat absorption phase-change material is paraffin, metal alloy, crystalline hydrate salt or fuse salt.
Described extinguishing chemical is powder extinguishing agent.
Described heat-absorbing material or/and after extinguishing chemical is made into columniform heat absorption cylinder, then is inserted in described stuffing hole.
A kind of large-capacity battery pack, the battery clamp comprising said structure and the numerous battery cells be arranged on described battery clamp.
As preferably, described battery cell is lithium ion battery.
Advantage of the present invention is:
1, the battery clamp of large-capacity battery pack adopts insulating heat-conduction material to make by the present invention, when battery cell loads this battery clamp and after forming battery pack, the heat produced in discharge and recharge is just transmitted directly to surrounding quickly by battery clamp, distributes until deliver to shell (i.e. the metal shell of battery case).Substantially increase the heat dispersion of battery pack, battery pack temperature is controlled, in proper range, avoid accumulation of heat.
2, the present invention offers the stuffing hole between battery settling hole on battery clamp, and in stuffing hole, be provided with heat absorption phase-change material, during practical application, described heat absorption phase-change material can absorb the heat that battery set charge/discharge produces, avoid thermal runaway, further ensure the use safety of battery pack.
The extinguishing chemical of 3, filling in stuffing hole can be put out a fire in time when battery pack is surprisingly on fire, by the control of fire in the stage on fire, further ensures the use safety of battery pack.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is one of structural representation of large-capacity battery pack in the embodiment of the present invention;
Fig. 2 is the structural representation two of large-capacity battery pack in the embodiment of the present invention;
Fig. 3 is the structural representation of battery clamp in the embodiment of the present invention;
Wherein: 1-chuck body, 2-battery settling hole, 3-stuffing hole, 4-battery cell, 5-metal clips.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are not limited to for illustration of the present invention limit the scope of the invention.The implementation condition adopted in embodiment can do further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
Fig. 1, Fig. 2 and Fig. 3 show a specific embodiment of this large-capacity battery pack of the present invention, and it comprises battery clamp and is arranged in the numerous battery cells 4 on battery clamp.Wherein, described battery clamp comprises chuck body 1, this chuck body 1 is shaped with the numerous battery settling hole 2 for arranging battery cell, metal clips 5 is provided with in battery settling hole 2, each described battery cell 4 plugs respectively and is arranged in these battery settling hole 2 and is connected with described metal clips 5, and battery cell 4 is columniform lithium ion battery.
The key improvements of the present embodiment is: the chuck body 1 of described battery clamp is made up of the insulating heat-conduction material of high tenacity.
Because the chuck body 1 of battery clamp in this example is made up of insulating heat-conduction material, when battery cell 4 loads this battery clamp, the heat produced in discharge and recharge is just transmitted directly to surrounding quickly by battery clamp, distributes until deliver to extraneous heat dissipation equipment (metal shell as battery case).Substantially increase the heat dispersion of battery pack, battery pack temperature is controlled, in proper range, avoid accumulation of heat.
In this example, described insulating heat-conduction material is fire-resistant copolyesters nylon, and the fire-retardant rank of its UL94 reaches V0 level, and has good heat conductivility, and conductive coefficient is at more than 0.2W/ (m DEG C).
In addition, this example is also shaped with the stuffing hole 3 between described each battery settling hole 2 in described chuck body 1, and is filled with heat-absorbing material in described stuffing hole 3.When battery pack is in charging and discharging state, the heat that each battery cell 4 produces, a part is passed to the heat-absorbing material in stuffing hole 3 by chuck body 1, absorbed by heat-absorbing material; Some heat passes to extraneous heat dissipation equipment (metal shell as battery case) through chuck body 1 and distributes.Thus the temperature of each battery cell is controlled within the specific limits, ensure that the useful life of battery, reduce the possibility that cell safety accident occurs.
And heat-absorbing material described in this example is heat absorption phase-change material (this heat absorption phase-change material is preferably closed in stuffing hole).This heat absorption phase-change material is generally solid-state under normal conditions, and it can undergo phase transition reaction when absorbing abundant heat, becomes liquid state from solid-state, and during phase transformation, this heat absorption phase-change material can absorb a large amount of heat and can not raised temperature.
Heat in battery pack is passed to the heat absorption phase-change material in stuffing hole 3 by chuck body 1, absorbed by heat absorption phase-change material, reaction is undergone phase transition when the heat that the phase-change material that absorbs heat absorbs is enough large, liquid state is become from solid-state, and in this phase transition process, heat absorption phase-change material absorbs and only absorbs heat and can not raised temperature, thus the temperature of each battery cell is controlled within the specific limits.
Described heat absorption phase-change material has two kinds, and these two kinds heat absorption phase-change material alternately arrangements in described chuck body, the phase transition temperature of these two kinds heat absorption phase-change materials is respectively 50 ~ 80 DEG C, 80 ~ 100 DEG C.Wherein, the heat absorption phase-change material of phase transition temperature 50 ~ 80 DEG C generally adopts paraffin, and the heat absorption phase-change material of phase transition temperature 80 ~ 100 DEG C generally adopts the copolymer of the hard section of the polyamide without thermal conductivity and soft section of aliphatic polyether.
The conveniently filling of heat-absorbing material, the axis of each stuffing hole 3 described in this example and the axis being parallel of each battery settling hole 2 are arranged, as shown in figures 1 and 3.After described heat-absorbing material is generally first made into columniform heat absorption cylinder, then be inserted in described stuffing hole 3.
In order to allow heat-absorbing material in each stuffing hole 3 can both the heat of uniform pickup each battery cell 4 around it, to ensure the temperature homogeneity of each battery cell 4, this example have employed following structure: the middle position between four battery settling hole 2 of arbitrary neighborhood is provided with a described stuffing hole 3.
And, we can also fill extinguishing chemical (after extinguishing chemical and above-mentioned heat-absorbing material be first made into columniform heat absorption cylinder in described stuffing hole 3 simultaneously, be inserted in again in stuffing hole), thus put out a fire in time, by the control of fire in the stage on fire when battery pack is surprisingly on fire.Certainly, we also only can fill extinguishing chemical in stuffing hole 3.Described extinguishing chemical is preferably powder extinguishing agent.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. one kind has the battery clamp of temperature control defencive function; comprise chuck body (1); described chuck body (1) being shaped with the some battery settling hole (2) for arranging battery cell, it is characterized in that: described chuck body (1) is made up of the insulating heat-conduction material of high tenacity.
2. the battery clamp with temperature control defencive function according to claim 1, is characterized in that: described insulating heat-conduction material is fire-resistant copolyesters nylon, and the fire-retardant rank of its UL94 reaches V0 level, and conductive coefficient is at more than 0.2W/ (m DEG C).
3. the battery clamp with temperature control defencive function according to claim 1, is characterized in that: upper in described chuck body (1), between four battery settling hole (2) of arbitrary neighborhood middle position is provided with stuffing hole (3) and is filled with heat-absorbing material or/and extinguishing chemical in described stuffing hole (3).
4. the battery clamp with temperature control defencive function according to claim 3, is characterized in that: described heat-absorbing material is heat absorption phase-change material.
5. the battery clamp with temperature control defencive function according to claim 4; it is characterized in that: described heat absorption phase-change material has two kinds; and these two kinds heat absorption phase-change materials are in the upper alternately arrangement of described chuck body (1), the phase transition temperature of these two kinds heat absorption phase-change materials is respectively 50 ~ 80 DEG C, 80 ~ 100 DEG C.
6. the battery clamp with temperature control defencive function according to claim 5; it is characterized in that: the heat absorption phase-change material of described phase transition temperature 50 ~ 80 DEG C is paraffin, the heat absorption phase-change material of described phase transition temperature 80 ~ 100 DEG C is the copolymer of the hard section of polyamide and soft section of aliphatic polyether.
7. the battery clamp with temperature control defencive function according to claim 3, is characterized in that: described extinguishing chemical is powder extinguishing agent.
8. the battery clamp with temperature control defencive function according to claim 3, is characterized in that: described heat-absorbing material or/and after extinguishing chemical is made into columniform heat absorption cylinder, then is embedded in and is located in described stuffing hole (3).
9. a large-capacity battery pack, is characterized in that: it comprises as the some battery cells (4) on the battery clamp as described in arbitrary in claim 1 ~ 8 and battery clamp as described in being arranged in.
10. large-capacity battery pack according to claim 9, is characterized in that: described battery cell (4) is lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052406.3A CN105552446A (en) | 2016-01-26 | 2016-01-26 | Battery fixture having temperature control protection function and high-capacity battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052406.3A CN105552446A (en) | 2016-01-26 | 2016-01-26 | Battery fixture having temperature control protection function and high-capacity battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105552446A true CN105552446A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610052406.3A Pending CN105552446A (en) | 2016-01-26 | 2016-01-26 | Battery fixture having temperature control protection function and high-capacity battery pack |
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| Country | Link |
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| CN (1) | CN105552446A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730498A (en) * | 2017-01-17 | 2017-05-31 | 华霆（合肥）动力技术有限公司 | Supply unit and electric power system |
| WO2018094904A1 (en) * | 2016-11-24 | 2018-05-31 | 苏州安靠电源有限公司 | Battery pack with heat-absorbing casing, and power battery having same |
| CN108110381A (en) * | 2018-02-06 | 2018-06-01 | 华霆（合肥）动力技术有限公司 | Battery modules and electric car |
| CN108232064A (en) * | 2017-12-22 | 2018-06-29 | 天津力神特种电源科技股份公司 | A kind of temperature control safeguard structure of lithium battery system |
| CN108736097A (en) * | 2017-04-19 | 2018-11-02 | 罗伯特·博世有限公司 | The application of battery module and sprawling protection element |
| CN111669956A (en) * | 2019-03-06 | 2020-09-15 | 天津莱尔德电子材料有限公司 | Thermal management and/or electromagnetic interference mitigation materials including coated fillers |
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| CN205646009U (en) * | 2016-01-26 | 2016-10-12 | 苏州安靠电源有限公司 | Battery anchor clamps and big capacity batteries group with accuse temperature protect function |
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| CN201584443U (en) * | 2009-12-17 | 2010-09-15 | 深圳市创明电池技术有限公司 | Mold for adjusting temperature of lithium ion battery group |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018094904A1 (en) * | 2016-11-24 | 2018-05-31 | 苏州安靠电源有限公司 | Battery pack with heat-absorbing casing, and power battery having same |
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| CN108736097A (en) * | 2017-04-19 | 2018-11-02 | 罗伯特·博世有限公司 | The application of battery module and sprawling protection element |
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| CN111669956A (en) * | 2019-03-06 | 2020-09-15 | 天津莱尔德电子材料有限公司 | Thermal management and/or electromagnetic interference mitigation materials including coated fillers |
| CN111669956B (en) * | 2019-03-06 | 2024-04-02 | 天津莱尔德电子材料有限公司 | Thermal management and/or electromagnetic interference mitigation materials and related devices and methods |
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| PB01 | Publication | ||
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Application publication date: 20160504 |