CN106329003A - Lithium battery module - Google Patents
Lithium battery module Download PDFInfo
- Publication number
- CN106329003A CN106329003A CN201610895783.3A CN201610895783A CN106329003A CN 106329003 A CN106329003 A CN 106329003A CN 201610895783 A CN201610895783 A CN 201610895783A CN 106329003 A CN106329003 A CN 106329003A
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- Prior art keywords
- lithium battery
- battery pack
- plate
- metal polar
- present
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Classifications
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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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 provides a lithium battery module. The lithium battery module comprises two plate bodies which are arranged by stacking on each other, wherein a heating component is arranged between the two plate bodies and is used for heating the plate bodies. Because the heating component is arranged between the two plate bodies of the lithium battery module provided by the invention, the lithium battery module can be heated by virtue of the heating component under a low-temperature environment. The lithium battery module has a novel structure and is convenient to manufacture and mount, and the working reliability of the lithium battery module is improved.
Description
Technical field
The present invention relates to electric automobile lithium battery technical field, particularly to a kind of lithium battery pack.
Background technology
At present, in the structure of battery designs, bipolar battery construction is a kind of common design, and bipolar cell can be used
In improving battery energy storage capacity based on weight and volume, reducing the battery that encapsulation weight and volume, offer are stable
Performance and low internal resistance.
The structure of bipolar cell generally comprises the bipolar layer of conduction, the most so-called bipolar plates, and it is used as phase in the battery
Electrical interconnection between adjacent monocell and as the partition between each battery unit.In order to successfully utilize dipolar configuration, double
Pole plate needs to conduct electricity fully, to transmit electric current from a monocell to another monocell, and has good in battery context
Chemical stability.
Refer to the structural representation sketch that Fig. 1, Fig. 1 are a kind of conventional bipolar cells in prior art and (see patent public
The number of opening is the application documents of CN1555584A), in this bipolar battery construction, its bipolar plates 2 is arranged on the inside of battery case 1
With interval formed multiple battery units, the both sides of bipolar plates 2 are respectively the positive and negative electrode of battery (label 3,5 in figure), battery just,
Being insulating barrier 4 between negative pole, electrolyte is filled in the space between each bipolar plates 2.This kind of bipolar battery construction existence
Problematically, when the temperature is too low, bipolar cell work extremely unstable, it is impossible to enough stable normal power supplies.
Summary of the invention
The embodiment of the present invention provides a kind of lithium battery pack, to solve in prior art when the temperature is too low, and bipolar cell
Work extremely unstable, it is impossible to the technical problem of enough stable normal power supplies.
For solving the problems referred to above, embodiments providing a kind of lithium battery pack, described lithium battery pack includes that
Two plate bodys that this stacking is arranged, are provided with heating assembly between wherein said two plate bodys, described heating assembly is for institute
State plate body to carry out heating and then described lithium battery pack being heated.
According to one preferred embodiment of the present invention, described heating assembly is electric hot plate or heating wire.
According to one preferred embodiment of the present invention, described heating wire is bar shaped, shaped as frame, spiral type or S type winding.
According to one preferred embodiment of the present invention, between said two plate body, it is provided with spaced support member, described two
Individual plate body realizes electrical connection by described support member.
According to one preferred embodiment of the present invention, described heating assembly is between described support member.
According to one preferred embodiment of the present invention, at least one in described support member and said two plate body one-body molded or
Person is arranged independent of said two plate body.
According to one preferred embodiment of the present invention, described lithium battery pack farther include temperature sensor, controller and
For thermal switch, wherein said temperature sensor is for detecting the temperature of described lithium battery pack, and described controller is according to described temperature
The degree temperature that detected of sensor controls the described duty for thermal switch, and then when described temperature is less than predetermined threshold value pair
Described heating assembly is powered heating.
According to one preferred embodiment of the present invention, described lithium battery pack includes the lithium battery group that multiple stacking is arranged, each
Described lithium battery group includes multiple battery units that two end plates and stacking are arranged between said two end plate, each battery
Unit includes that at least one metal polar plate and battery, wherein said two plate bodys are two the described end plates being disposed adjacent.
According to one preferred embodiment of the present invention, described lithium battery pack includes that multiple stacking arranges battery unit, Mei Yi electricity
Pool unit includes that the battery core between two metal polar plates and clamping and said two metal polar plate, wherein said two plate bodys are
Two the described metal polar plates being disposed adjacent.
According to one preferred embodiment of the present invention, being provided with cooling element between said two plate body, described cooling element is used
In described plate body being cooled down and then described lithium battery pack being cooled down.
Relative to prior art, the lithium battery pack that the present invention provides is owing to being provided with heating group between two boards body
Part so that lithium battery pack can first pass through heating assembly at low ambient temperatures and heat, its novel structure, the manufacturer side of dress
Just, improve the reliability of lithium battery pack work.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing, wherein:
Fig. 1 is the simplification structural representation sketch of a kind of conventional bipolar cell in prior art；
Fig. 2 is the structural representation of lithium battery group one embodiment of the present invention；
Fig. 3 is the partial structurtes schematic diagram of metal polar plate one embodiment of the present invention；
Fig. 4 is the cross section structure schematic diagram of battery unit one embodiment of the present invention；
Fig. 5 is the partial structurtes schematic diagram of another embodiment of metal polar plate of the present invention；
Fig. 6 is the cross section structure schematic diagram of another embodiment of battery unit of the present invention；
Fig. 7 is the schematic diagram of dielectric one embodiment of the present invention；
Fig. 8 is the schematic diagram of another embodiment of dielectric of the present invention；
Fig. 9 is the schematic diagram of another embodiment of dielectric of the present invention；
Figure 10 is the structural representation of lithium battery pack one embodiment of the present invention；
Figure 11 is the partial structurtes schematic diagram of lithium battery pack one embodiment of the present invention；
Figure 12 is the electrical block diagram of heating module of the present invention；
Figure 13 is the structural representation of heating module one embodiment of the present invention；
Figure 14 is the structural representation of another embodiment of heating module of the present invention；
Figure 15 is the structural representation of another embodiment local of lithium battery pack of the present invention；
Figure 16 is the partial structurtes schematic diagram of another embodiment of lithium battery pack of the present invention；
Figure 17 is the partial structurtes schematic diagram of another embodiment of lithium battery pack of the present invention；
Figure 18 is the structural representation of refrigerating module fluid circuit of the present invention；
Figure 19 is the structural representation of end plate one embodiment of lithium battery group of the present invention；
Figure 20 is the structural representation of another embodiment of end plate of lithium battery group of the present invention；
Figure 21 is the structural representation of another embodiment of end plate of lithium battery group of the present invention；
Figure 22 is the structural representation of another embodiment of end plate of lithium battery group of the present invention；
Figure 23 is the structural representation of another embodiment of end plate of lithium battery group of the present invention；
Figure 24 is the structural representation of another embodiment of end plate of lithium battery group of the present invention；
Figure 25 is the structural representation of another embodiment of end plate of lithium battery group of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is described in further detail.Implement it is emphasized that following
Example is merely to illustrate the present invention, but is not defined the scope of the present invention.Same, following example are only the portion of the present invention
Point embodiment and not all embodiments, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There is other embodiments, broadly fall into the scope of protection of the invention.
Refer to the structural representation that Fig. 2, Fig. 2 are lithium battery group one embodiments of the present invention,
As in figure 2 it is shown, the present invention provides a kind of lithium battery group 10, this lithium battery group 10 includes that at least two stacked in parallel sets
The battery unit 100 put, each battery unit 100 includes metal polar plate 110 and the battery 120 being located in metal polar plate 110,
The outside of the battery unit 100 that stacking is arranged is the two end plates 150 of encapsulation battery unit 100, and the outside of end plate 150 can enter one
Step arranges heating module 160 or refrigerating module 170, and heating module 160 is used for heating lithium battery group at low ambient temperatures,
To improve the reliability of lithium battery group 10 work, refrigerating module 170 is used for lowering the temperature lithium battery group 10 in high temperature environments,
To ensure the safety of lithium battery group 10 work.
In the embodiment depicted in figure 2, lithium battery group 10 includes three battery units 100, certainly, in other embodiments,
The quantity of battery unit 100 is not limited to 3, can be 2,4,5,6 ... or multiple, the tool of battery unit 100
Body quantity can require to determine according to the output voltage of lithium battery group 10.
Seeing also Fig. 3 and Fig. 4, wherein, Fig. 3 is the partial structurtes schematic diagram of metal polar plate one embodiment of the present invention；
Fig. 4 is the cross section structure schematic diagram of battery unit one embodiment of the present invention.
As shown in Figure 3 and Figure 4, battery unit 100 includes metal polar plate 110 and the battery being located in metal polar plate 110
120, metal polar plate 110 includes metal polar plate 112 and lower metal polar plate 114, upper metal polar plate 112 and lower metal polar plate 114
Edge laminating after together inflection formed bound edge 130, battery unit 100 also includes dielectric 140, and dielectric 140 is by upper
The edge insulation of metal polar plate 112 and lower metal polar plate 114 is spaced to avoid upper metal polar plate 112 to lead with lower metal polar plate 114
Logical.
Wherein, battery 120, owing to being not related to inventive point place, is not described further.
As shown in Figure 4, in embodiments of the present invention, bound edge 130 is formed with pre-leaving a blank with the inner chamber 101 of battery unit 100
Gap 102, this is pre-interspaces 102 bulking effects that can absorb battery unit 100, when battery unit 100 works expanded by heating,
Bound edge 130 can suitably deform to absorb the thermal expansion of battery unit 100.
In a preferred embodiment, the outward flange of dielectric 140 protrudes from metal polar plate 112 and/or lower metal polar plate
The outward flange of 114.
As shown in Figure 4, upper metal polar plate 112 and lower metal polar plate 114 are fitted after inflection, and upper metal polar plate 112, insulation are situated between
The edge of matter 140 and lower metal polar plate 114 is the most stepped, be positioned at after inflection inner side metal polar plate slightly longer, insulation be situated between
Matter 140 is placed in the middle, and the metallic plate plate being positioned at outside after inflection is the shortest.
Seeing also Fig. 5 and Fig. 6, wherein, Fig. 5 is the partial structurtes signal of another embodiment of metal polar plate of the present invention
Figure；Fig. 6 is the cross section structure schematic diagram of another embodiment of battery unit of the present invention.
The present embodiment is identical with the embodiment major part shown in Fig. 3 and Fig. 4, and its difference is then at, upper metal polar plate 112
By the way of backrush, bound edge 130' is formed, equally, by dielectric 140 by upper metal with the edge of lower metal polar plate 114
The edge insulation of pole plate 112 and lower metal polar plate 114 is spaced to avoid upper metal polar plate 112 to turn on lower metal polar plate 114.
In embodiments of the present invention, the material of upper metal polar plate 112 can be aluminum, rustless steel or titanium, lower metal polar plate
The material of 114 can be copper or nickel, and upper metal polar plate 112 and lower metal polar plate 114 thickness can be 50um～2mm.
See also the schematic diagram that Fig. 7 to Fig. 9, Fig. 7 to Fig. 9 are three kinds of embodiments of dielectric of the present invention.
In the embodiment shown in fig. 7, dielectric 140 is insulation frame, accordingly, upper metal polar plate 112 or lower metal
The rectangular shape of pole plate 114, insulation frame can be folded in metal pole when upper metal polar plate 112 coordinates with lower metal polar plate 114
Between the edge of plate 112 and lower metal polar plate 114, then carry out inflection or backrush, or, insulation frame is sticked in advance in upper metal pole
On plate 112 and/or lower metal polar plate 114, then carry out inflection or backrush.
Certainly, the shape of dielectric 140 is not limited to rectangle frame, specifically can be according to upper metal polar plate 112 and lower metal
The shape of pole plate 114 determines, when other shapes that battery unit 100 is non-rectangle, and such as triangle or pentagon, insulation
Medium 140 corresponds to triangle insulation frame or pentagon insulation frame.
In the embodiment shown in fig. 8, dielectric 140 is insulation strip, and insulation strip is equally at upper metal polar plate 112
It is folded in when coordinating with lower metal polar plate 114 between the edge of upper metal polar plate 112 and lower metal polar plate 114, then carries out inflection
Or backrush, or, insulation strip is sticked in advance on upper metal polar plate 112 and/or lower metal polar plate 114, then carries out inflection or return
Volume.
Certainly, in other embodiments, dielectric 140 is alternatively insulating coating or coating, is coated with or plates and is located at gold
Belong to pole plate 112 and/or the edge of lower metal polar plate 114 so that upper metal polar plate 112 and lower metal polar plate 114 in inflection or return
Ensure during volume that the two is dielectrically separated from.
In the embodiment shown in fig. 9, dielectric 140 is insulation strip set or insulation frame set, upper metal polar plate 112 with
Metal on ensureing on the edge of upper metal polar plate 112 and/or lower metal polar plate 114 it is nested with before the cooperation of lower metal polar plate 114
Pole plate 112 is dielectrically separated from lower metal polar plate 114.
Please continue to refer to Fig. 4, in embodiments of the present invention, battery unit 100 has multiple bound edge 130, with rectangular-shaped
As a example by battery unit 100, it has 4 bound edges, and the inflection direction of multiple bound edges 130 can be identical or contrary, such as Fig. 2, Fig. 4 and
The inflection direction of the bound edge 130 of battery unit 100 arranged on left and right sides shown in Fig. 6 is contrary.
Please continue to refer to Fig. 4, battery unit 100 also includes that fixture 180, fixture 180 are used for fixing bound edge 130,
In preferred embodiment, fixture 180 can be adhesive tape or plastic cement clip, gets loose after being used for preventing bound edge inflection or backrush.
In the lithium battery group 10 that the present invention provides, the side of battery unit 100 is packaged by above-mentioned bound edge 13, its
Novel structure, easily manufactured, it is possible to thermal expansion effects when well reply battery unit 100 works.
See also the structural representation that Figure 10, Figure 10 are lithium battery pack one embodiments of the present invention.
As shown in Figure 10, the present invention provides a kind of lithium battery pack 20, and this lithium battery pack 20 includes that at least two is put down
Windrow folds the lithium battery group 10 of setting, and each lithium battery group 10 includes the battery unit 100, Mei Yi electricity that at least two stacking is arranged
Pool unit 100 includes metal polar plate 110 and the battery 120 being located in metal polar plate 110, the battery unit 100 that stacking is arranged
Outside be encapsulation battery unit 100 two end plates 150.
In the embodiment shown in fig. 10, lithium battery pack 20 includes two lithium battery groups 10, certainly, in other embodiments
In, the quantity of lithium battery group 10 is not limited to 2, it is also possible to be 3,4,5,6 ... or multiple, lithium battery group 10
Particular number can require to determine according to the output voltage of lithium battery pack.
The lithium battery pack 20 that the present invention provides includes two plate bodys arranged that overlie one another, and sets between two of which plate body
Being equipped with heating module 260, heating module 260 is for heating plate body and then heating lithium lithium battery pack 20.
Seeing also Figure 11, in one embodiment, two plate bodys refer to the end plate 150 of adjacent lithium battery group 10, two
It is provided with heating module 260 between individual end plate 150.
In another kind of embodiment, two plate bodys can also be the metal polar plate 110 of adjacent cell 100, two gold
Belong to and be provided with heating module 260 between pole plate 110.
Wherein, heating module 260 can be electric hot plate or heating wire, heating wire can in the shape as shown in Figure 13 or Figure 14,
Certainly, heating wire can also is that other shapes such as bar shaped, shaped as frame, spiral type or S type winding.
As shown in figure 11, in embodiments of the present invention, spaced support member 230 between two plate bodys, it is provided with, two
Individual plate body realizes electrical connection by support member 230.Heating module 260 is between support member 230.
In a particular embodiment, support member 230 can be one-body molded with at least one in two plate bodys, or support member
230 can be arranged independent of two plate bodys.
See also the electrical block diagram that Figure 12, Figure 12 are heating modules of the present invention.
As shown in figure 12, lithium battery pack 20 farther includes temperature sensor 210, controller 220 and supplies thermal switch
230, wherein temperature sensor 210 is for detecting the temperature of lithium battery pack 20, and controller 220 is according to temperature sensor 210 institute
The temperature of detection controls the duty for thermal switch 230, and then carries out heating module 260 when temperature is less than predetermined threshold value
For electrical heating.
Please continue to refer to Figure 10, in other embodiments of the present invention, refrigerating module 270 also can be set between two plate bodys,
Refrigerating module 270 is for cooling down plate body and then cool down lithium lithium battery pack 20, to ensure lithium battery group 10 work
The safety made.
The lithium battery pack 20 that the present invention provides is owing to being provided with heating assembly 260 between two boards body so that lithium electricity
Pond assembly 20 can first pass through heating assembly 260 at low ambient temperatures and heat, and its novel structure, manufacturer fill conveniently, carry
The high reliability of lithium battery pack 20 work.
Seeing also Figure 10 and Figure 15, the present invention provides a kind of lithium battery pack 20, and this lithium battery pack 20 includes
The lithium battery group 10 that at least two stacked in parallel is arranged, each lithium battery group 10 includes the battery unit that at least two stacking is arranged
100, each battery unit 100 includes metal polar plate 110 and the battery 120 being located in metal polar plate 110, the electricity that stacking is arranged
The outside of pool unit 100 is the two end plates 150 of encapsulation battery unit 100.
The lithium battery pack 20 that the present invention provides includes two plate bodys arranged that overlie one another, and sets between two of which plate body
It is equipped with flow channel for liquids 310.
In one embodiment, two plate bodys refer to the end plate 150 of adjacent lithium battery group 10, set between two end plates 150
It is equipped with flow channel for liquids 310.
In another kind of embodiment, two plate bodys can also be the metal polar plate 110 of adjacent cell 100, two gold
Belong to and be provided with flow channel for liquids 310 between pole plate 110.
As shown in figure 15, being provided with spaced support member 330 between two plate bodys, two plate bodys pass through support member
330 realize electrical connection.Flow channel for liquids 310 is between support member 330.
Preferably, lithium battery pack 20 farther includes insulated conduit 340, and flow channel for liquids 310 is formed at insulated conduit 340
Internal.
See also the partial structurtes schematic diagram that Figure 16, Figure 16 are another embodiments of lithium battery pack of the present invention.
In the present embodiment, flow channel for liquids 310 is formed at the inside of support member 330, is provided with for arranging in support member 330
The passage of insulated conduit 340.
See also the partial structurtes schematic diagram that Figure 17, Figure 17 are another embodiments of lithium battery pack of the present invention.
In the present embodiment, support member 330 includes skin 332 and inner insulating layer 334, outside two plate bodys are by conduction
Layer 332 is electrically connected to each other, and cooling liquid is remained electrically isolated from skin 332 and two plate bodys by inner insulating layer 334.
Wherein, insulated conduit 340, the material of inner insulating layer 334 can be PP (Polypropylene, polypropylene), PET
(Polyethylene terephthalate, polyethylene terephthalate).Cooling liquid can be water, iknsulating liquid or
Other low viscosities, low freezing point, nonflammable liquid.When using iknsulating liquid, it is not necessary to insulated conduit 340 and inner insulating layer are set
334。
In embodiments of the present invention, at least one in support member 330 and two plate bodys is one-body molded or independent of two
Individual plate body is arranged.
See also the structural representation that Figure 18, Figure 18 are refrigerating module fluid circuits of the present invention.
As shown in figure 18, lithium battery pack 20 farther includes temperature sensor 345, controller 350, pump 360 and water
Groove 370, wherein temperature sensor 345 is for detecting the temperature of lithium battery pack 20, and controller 350 is according to temperature sensor 245
The temperature detected controls the duty of pump 360, and then pumps tank when temperature exceedes predetermined threshold value to flow channel for liquids 310
Cooling liquid in 370.
The lithium battery pack that the present invention provides is owing to being provided with cooling assembly 270 between two boards body so that lithium battery
Assembly 20 can be cooled down by cooling assembly 270 in high temperature environments, ensures the safe and stable operation of battery, and its structure is new
Grain husk, manufacturer fill conveniently.
Seeing also Fig. 2 and Figure 19, wherein, Figure 19 is the structural representation of end plate one embodiment of lithium battery group of the present invention
Figure.
The present invention provides a kind of lithium battery group 10, and this lithium battery group 10 includes the battery list that at least two stacked in parallel is arranged
Unit 100, each battery unit 100 includes metal polar plate 110 and the battery 120 being located in metal polar plate 110, and stacking is arranged
The outside of battery unit 100 is the two end plates 150 of encapsulation battery unit 100, and end plate 150 includes upper head plate 150, bottom plate
150。
Wherein, at least one in upper head plate 150 and bottom plate 150 is provided with for connecting connecing of external conductive circuit
The cross-sectional area of at least one in line end 410, upper head plate 150 and bottom plate 150 on the direction towards terminals 410 gradually
Becoming big so that the resistance of upper head plate 150 and bottom plate 150 tapers on the direction towards terminals 410, electric current conducts more
Add safe and reliable.
In the embodiment shown in Figure 19, upper head plate 150 or bottom plate 150 are an overall plate body, its overall region
Thickness become larger on the direction towards terminals 410, certainly, in other embodiments, it is also possible to be subregion
Thickness becomes larger on the direction towards terminals 410, such as from zone line initially towards the direction of terminals 410 by
Gradual change is big.
In the embodiment shown in Figure 20, upper head plate 150 or bottom plate 150 are combinative structure, including a plate body 420 and
Being provided projectingly on multiple fins 430 of at least side of plate body 420, wherein the cross section of plate body 420 is towards terminals 410
Keeping consistent on direction, the cross-sectional area of fin 430 becomes larger on the direction towards terminals 410.
In a particular embodiment, fin 430 can be height and/or width on the direction towards terminals 410 by
Gradual change is big.
In the embodiment shown in Figure 21, the cross-sectional area of fin 430 on the direction towards terminals 410 in camber line
Type becomes larger.
In the embodiment shown in Figure 22, fin 430 is parallel to each other and interval is arranged, and it can be that height is towards wiring
Become larger on the direction of end 410.
In the embodiment shown in Figure 23, fin 430 expands radially relative to terminals 410, and it can be height
Direction towards terminals 410 becomes larger.
In the embodiment shown in Figure 24, the width of fin 430 becomes larger on the direction towards terminals 410.
In the embodiment shown in Figure 25, at least one in upper head plate 150 and bottom plate 150 is provided with multiple borehole
440, upper head plate 150 and bottom plate 150 can an overall rectangular panel body, the plurality of borehole 440 can be to be located at upper head plate 150
With the counterbore (non through hole) on bottom plate 150, borehole 440 gradually becomes on the direction towards terminals 410 to be dredged.The most permissible
Reaching resistance to taper on the direction towards terminals 410, electric current conduction is more safe and reliable, can alleviate again upper head plate
150 and the weight of bottom plate 150.
In embodiments of the present invention, fin 430 is one-body molded with plate body 420 or by the material being more thermally conductive than plate body 420
Make.
In embodiments of the present invention, terminals 410 at least two and are respectively arranged at upper head plate 150 and bottom plate 150
In the side of at least one or opposite sides.
The present invention also provides for a kind of end plate 150, and this end plate 150, in lithium battery group 10, this end plate 150 is provided with use
In connect external conductive circuit terminals 410, the cross-sectional area of its end plates 150 on the direction towards terminals 410 by
Gradual change is big.
The cross-sectional area of end plate 150 of the lithium battery group 10 that the present invention provides on the direction towards terminals 410 gradually
Becoming big so that the resistance of end plate 150 tapers on the direction towards terminals 410, electric current conduction is more safe and reliable.
These are only the section Example of the present invention, not thereby limit the scope of the invention, every utilize this
Equivalent device or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a lithium battery pack, it is characterised in that described lithium battery pack includes two plate bodys arranged that overlie one another, wherein
Being provided with heating assembly between said two plate body, described heating assembly is for heating and then to described lithium described plate body
Battery component heats.
Lithium battery pack the most according to claim 1, it is characterised in that described heating assembly is electric hot plate or heating wire.
Lithium battery pack the most according to claim 2, it is characterised in that described heating wire be bar shaped, shaped as frame, spiral type or
S type winding.
Lithium battery pack the most according to claim 1, it is characterised in that be provided with between said two plate body and be spaced
Support member, said two plate body by described support member realize electrical connection.
Lithium battery pack the most according to claim 4, it is characterised in that described heating assembly be positioned at described support member it
Between.
6. according to the lithium battery pack described in claim 1-5 any one, it is characterised in that described support member and said two
At least one in plate body is one-body molded or arranges independent of said two plate body.
7. according to the lithium battery pack described in claim 1-5 any one, it is characterised in that described lithium battery pack is further
Including temperature sensor, controller and confession thermal switch, wherein said temperature sensor is for detecting described lithium battery pack
Temperature, described controller controls the described duty for thermal switch according to the temperature that described temperature sensor is detected, and then
When described temperature is less than predetermined threshold value, described heating assembly is powered heating.
8. according to the lithium battery pack of claim 1-5 any one, it is characterised in that described lithium battery pack includes multiple heap
The folded lithium battery group arranged, each described lithium battery group includes that two end plates and stacking are arranged between said two end plate
Multiple battery units, each battery unit includes at least one metal polar plate and battery, and wherein said two plate bodys are adjacent setting
Two the described end plates put.
9. according to the lithium battery pack of claim 1-5 any one, it is characterised in that described lithium battery pack includes multiple heap
Folding and arrange battery unit, each battery unit includes the electricity between two metal polar plates and clamping and said two metal polar plate
Core, wherein said two plate bodys are two the described metal polar plates being disposed adjacent.
10. according to the lithium battery pack of claim 1-5 any one, it is characterised in that be provided with between said two plate body
Cooling element, described cooling element is for cooling down described plate body and then cooling down described lithium battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895783.3A CN106329003B (en) | 2016-10-13 | 2016-10-13 | Lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895783.3A CN106329003B (en) | 2016-10-13 | 2016-10-13 | Lithium battery pack |
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| CN106329003A true CN106329003A (en) | 2017-01-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711553A (en) * | 2017-02-24 | 2017-05-24 | 华霆（合肥）动力技术有限公司 | Battery module and battery module heat management system |
| CN112768721A (en) * | 2021-02-02 | 2021-05-07 | 武汉理工大学 | Composite serpentine flow channel structure and all-vanadium redox flow battery comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769158A (en) * | 2011-12-30 | 2012-11-07 | 加拿大派维动力系统有限公司 | Cooling/heating device of battery core |
| CN203406391U (en) * | 2012-01-27 | 2014-01-22 | 昭和电工株式会社 | Cooling and heating structure of battery pack |
| CN204088526U (en) * | 2014-09-23 | 2015-01-07 | 广州汽车集团股份有限公司 | A kind of power battery module and passenger car |
| CN105609892A (en) * | 2014-11-17 | 2016-05-25 | 株式会社Lg化学 | Cooling plate for secondary battery, and secondary battery module having same |
-
2016
- 2016-10-13 CN CN201610895783.3A patent/CN106329003B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769158A (en) * | 2011-12-30 | 2012-11-07 | 加拿大派维动力系统有限公司 | Cooling/heating device of battery core |
| CN203406391U (en) * | 2012-01-27 | 2014-01-22 | 昭和电工株式会社 | Cooling and heating structure of battery pack |
| CN204088526U (en) * | 2014-09-23 | 2015-01-07 | 广州汽车集团股份有限公司 | A kind of power battery module and passenger car |
| CN105609892A (en) * | 2014-11-17 | 2016-05-25 | 株式会社Lg化学 | Cooling plate for secondary battery, and secondary battery module having same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711553A (en) * | 2017-02-24 | 2017-05-24 | 华霆（合肥）动力技术有限公司 | Battery module and battery module heat management system |
| CN112768721A (en) * | 2021-02-02 | 2021-05-07 | 武汉理工大学 | Composite serpentine flow channel structure and all-vanadium redox flow battery comprising same |
Also Published As
| Publication number | Publication date |
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| CN106329003B (en) | 2019-09-20 |
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