CN111785887A - High-safety scale interval type lithium ion battery pack - Google Patents
High-safety scale interval type lithium ion battery pack Download PDFInfo
- Publication number
- CN111785887A CN111785887A CN202010746308.6A CN202010746308A CN111785887A CN 111785887 A CN111785887 A CN 111785887A CN 202010746308 A CN202010746308 A CN 202010746308A CN 111785887 A CN111785887 A CN 111785887A
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- China
- Prior art keywords
- lithium ion
- ion battery
- battery pack
- fixing plate
- safety scale
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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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
Abstract
The invention discloses a high-safety scale interval type lithium ion battery pack which comprises a set fixing plate and a plurality of lithium ion battery monomers fixedly connected to the set fixing plate, wherein the lithium ion battery monomers are distributed in a staggered mode, a gap is formed between every two adjacent lithium ion battery monomers, an included angle formed between a plane where the lithium ion battery monomers are located and a plane where the set fixing plate is located is 30-70 degrees, and a protection assembly is sleeved on each lithium ion battery monomer. According to the lithium ion battery pack, the scales of the lithium ion battery cells are distributed at intervals, the protection component is arranged, so that the safety of the lithium ion battery pack can be improved, the temperature change of the environment where the lithium ion battery cells are located can be reduced through the phase-change material, the lithium ion battery cells can absorb and store heat when the temperature of the lithium ion battery cells is higher, the heat can be slowly released for a long time, the inner shell is prevented from being too low in temperature within a certain time, and the charging and discharging performance of the lithium ion battery cells.
Description
Technical Field
The invention belongs to the technical field of lithium ion battery packs, and particularly relates to a high-safety scale interval type lithium ion battery pack.
Background
Lithium ion batteries are the most used power battery technology in today's electric vehicles and related fields due to its high energy density and increased power in the cells, making such batteries less mass and density to develop at competitive prices. The lithium ion battery pack generally comprises a plurality of lithium ion battery monomers, a set fixing plate for connecting the lithium ion battery monomers in series and parallel, and a corresponding control assembly for controlling the power supply of the electric automobile and judging the states of the lithium ion battery monomers.
The free arranging of lithium ion battery among the prior art is generally comparatively intensive, although the space that occupies is less like this, but there is great potential safety hazard, lithium ion battery can produce heat under the circumstances of discharging, and in order to protect the inside lithium cell monomer of group battery, the group battery all can be provided with the higher casing of sealed degree, influence heat dissipation, probably cause the incident, the influence that lithium ion battery received the temperature variation simultaneously is also great, when the temperature is lower, still can direct influence the free charge and discharge performance of lithium cell.
Therefore, in view of the above technical problems, it is necessary to provide a high-safety scale-spacing lithium ion battery pack.
Disclosure of Invention
The invention aims to provide a high-safety scale interval type lithium ion battery pack to solve the problems.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
a high-safety scale interval type lithium ion battery pack comprises a set fixing plate and a plurality of lithium ion battery monomers fixedly connected to the set fixing plate, wherein the lithium ion battery monomers are distributed in a staggered mode, a gap is formed between every two adjacent lithium ion battery monomers, and an included angle formed between a plane where the lithium ion battery monomers are located and a plane where the set fixing plate is located is 30-70 degrees;
the lithium ion battery comprises lithium ion battery monomers, and is characterized in that a protection component is sleeved on each lithium ion battery monomer, a protection groove matched with each lithium ion battery monomer is formed in each protection component, a phase-change material is filled in each protection component, and each phase-change material is located between every two adjacent lithium ion battery monomers.
As a further improvement of the invention, the included angle between the plane of the lithium ion battery monomer and the plane of the collection fixing plate is degree.
As a further improvement of the invention, a control assembly is fixedly connected to the upper end of the integrated fixing plate, and the control assembly comprises a protective shell.
As a further improvement of the invention, one end of the protection shell close to the protection component is provided with a first inclined surface, the protection component is provided with a second inclined surface matched with the first inclined surface, and the first inclined surface is contacted with the second inclined surface.
As a further improvement of the invention, the battery pack further comprises a sealing box and a sealing cover which are matched with each other, a sealing ring is fixedly installed at the edge of the sealing cover, and the integrated fixing plate is fixedly installed on an inner bottom plate of the sealing box.
As a further improvement of the invention, a first threaded hole is formed in the sealing box, a second threaded hole is formed in the sealing cover, and a bolt is connected between the first threaded hole and the second threaded hole in a threaded manner.
As a further improvement of the invention, the upper end of the protection component is fixedly connected with a plurality of damping vertical plates, the upper ends of the damping vertical plates are fixedly connected with abutting plates, and the abutting plates are in contact with the sealing covers.
As a further improvement of the invention, the protection component, the damping vertical plate and the abutting plate are of an integrated structure.
As a further improvement of the invention, a plurality of heat-conducting shells are arranged in the protection assembly, and the phase-change materials are all positioned in the heat-conducting shells.
As a further improvement of the invention, the heat-conducting shell is made of metal, and the inner surface and the outer surface of the heat-conducting shell are both provided with heat-radiating fins.
Compared with the prior art, the invention has the following advantages:
according to the lithium ion battery pack, the scales of the lithium ion battery cells are distributed at intervals, the protection component is arranged, so that the safety of the lithium ion battery pack can be improved, the temperature change of the environment where the lithium ion battery cells are located can be reduced through the phase-change material, the lithium ion battery cells can absorb and store heat when the temperature of the lithium ion battery cells is higher, the heat can be slowly released for a long time, the inner shell is prevented from being too low in temperature within a certain time, and the charging and discharging performance of the lithium ion battery cells.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-safety scale-spacing lithium ion battery pack according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of a high-safety flake-spacer lithium ion battery pack according to the present invention;
FIG. 3 is an exploded view of a high safety scale-type lithium ion battery pack according to an embodiment of the present invention;
FIG. 4 is an exploded view of a second embodiment of a high safety scale-type lithium ion battery pack;
FIG. 5 is a cross-sectional view of a high safety flake-type lithium ion battery pack according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure at A in FIG. 5;
fig. 7 is a schematic structural diagram at B in fig. 5.
In the figure: 1. the lithium ion battery comprises a sealing box, 101, a first threaded hole, 2, a sealing cover, 201, a second threaded hole, 3, a bolt, 4, a collection fixing plate, 5, a lithium ion battery monomer, 6, a control assembly, 7, a protection assembly, 701, a protection groove, 8, a damping vertical plate, 9, an abutting plate, 10, a heat conduction shell, 11, a phase change material and 12, and a sealing ring.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
The high-safety scale interval type lithium ion battery pack disclosed by the embodiment of the invention comprises a collection fixing plate 4 and a plurality of lithium ion battery monomers 5 fixedly connected to the collection fixing plate 4, wherein the plurality of lithium ion battery monomers 5 are distributed in a staggered manner, the upper end of the collection fixing plate 4 is fixedly connected with a control assembly 6, and through the combination of the collection fixing plate 4, the control assembly 6 and the plurality of lithium ion battery monomers 5, the functions of the battery pack can be realized under the coordination of necessary components, and charging and discharging can be realized.
Referring to fig. 3 to 7, a gap is formed between two adjacent lithium ion battery cells 5, an included angle between a plane where the lithium ion battery cell 5 is located and a plane where the collection fixing plate 4 is located is 30 to 70 degrees, preferably, an included angle between the plane where the lithium ion battery cell 5 is located and the plane where the collection fixing plate 4 is located is 45 degrees, and the height of the lithium ion battery cell 5 can be reduced due to the inclined arrangement of the lithium ion battery cell 5, so that the protection and installation of the lithium ion battery cell 5 are facilitated, and meanwhile, the usage scenarios can be increased.
Referring to fig. 1 to 4, the battery pack further includes a sealing box 1 and a sealing cover 2 which are matched with each other, the sealing box 1 and the sealing cover 2 are used for protecting the whole battery pack, a sealing ring 12 is fixedly mounted on the edge of the sealing cover 2, so that the sealing performance is further increased, a set fixing plate 4 is fixedly mounted on an inner bottom plate of the sealing box 1 and used for fixing the set fixing plate 4, a first threaded hole 101 is formed in the sealing box 1, a second threaded hole 201 is formed in the sealing cover 2, a bolt 3 is connected between the first threaded hole 101 and the second threaded hole 201 in a threaded manner, and the sealing box 1 and the sealing cover 2 are convenient to fix and detach.
Referring to fig. 3 to 7, a protection component 7 is sleeved on a lithium ion battery cell 5, a protection groove 701 matched with the lithium ion battery cell 5 is formed in the protection component 7, the lithium ion battery cell 5 is clamped in the protection groove 701, the protection groove 701 contacts with a pair of surfaces with large areas of the lithium ion battery cell 5, and meanwhile, the protection component 7 has a certain heat conduction effect, the heat conduction coefficient of the protection component is more than 50, and the specific material can be a mixed material of graphite and a hard fabric, or can be a porous metal material.
Referring to fig. 5 and fig. 7, a plurality of heat conducting shells 10 are provided in the protection component 7, the phase-change material 11 is filled in the heat conducting shells 10, the phase-change material 11 may be a solid-liquid eutectic phase-change material, and is a phase-change energy storage building material, which is relatively low in cost and good in effect, the heat conducting shells 10 are made of a metal material, specifically, copper or aluminum, heat dissipation fins are provided on the inner and outer surfaces of the heat conducting shells 10, which are not shown in the drawing, so as to facilitate better heat conduction, the heat conducting shells 10 are located between two adjacent lithium ion battery cells 5, so as to facilitate heat absorption or heat release, and can be uniformly distributed to each lithium ion battery cell.
Refer to fig. 5 and combine as shown in fig. 6, control assembly 6 includes protective housing, protective housing is close to protective housing 7's one end and is provided with first inclined plane, protective housing 7 is last be provided with first inclined plane assorted second inclined plane, first inclined plane contacts with the second inclined plane, can realize protective housing 7 along the rising on first inclined plane when meetting great striking or vibrations, all there is certain clearance between protective housing 7 and control assembly 6 and the inside top of sealed lid 2, be convenient for realize protective housing 7's rising, better cushioning effect has, can avoid protective housing 7 to directly cause harm such as great extrusion to lithium ion battery monomer 5 to a certain extent.
Refer to fig. 3, fig. 5 combines fig. 7 to show, a plurality of shock attenuation risers 8 of upper end fixedly connected with of protection component 7, the upper end fixedly connected with butt board 9 of shock attenuation riser 8, shock attenuation riser 8 and butt board 9 all have certain elasticity, the effect of further buffering vibrations and striking has, butt board 9 contacts with sealed lid 2, protection component 7, shock attenuation riser 8 and butt board 9 structure as an organic whole, high stability, shock attenuation riser 8 and butt board 9 can regard as the handle that lifts up protection component 7 simultaneously, be convenient for maintain, when protection component 7's material is the metal material, shock attenuation riser 8 and butt board 9 structure as an organic whole not, the material of shock attenuation riser 8 and butt board 9 is elastic material such as rubber this moment.
During the use, refer to fig. 1 and fig. 2, specifically, still be provided with corresponding power on seal box 1 and the sealed lid 2 and draw forth or insert the subassembly, not marked in the figure, when the temperature that lithium ion battery monomer 5 discharged the production is higher, conduct to heat conduction casing 10 through protection component 7, then conduct to phase change material 11 again, phase change material 11 absorbs heat energy storage, can reduce lithium ion battery monomer 5's temperature, in certain time quantum, when ambient temperature is lower, phase change material 11 dispels the heat, react on lithium ion battery monomer 5 through heat conduction casing 10 and protection component 7, make lithium ion battery monomer 5's ambient temperature unlikely too low, be convenient for keep lithium ion battery monomer 5 better performance.
According to the technical scheme, the invention has the following beneficial effects:
according to the lithium ion battery pack, the scales of the lithium ion battery cells are distributed at intervals, the protection component is arranged, so that the safety of the lithium ion battery pack can be improved, the temperature change of the environment where the lithium ion battery cells are located can be reduced through the phase-change material, the lithium ion battery cells can absorb and store heat when the temperature of the lithium ion battery cells is higher, the heat can be slowly released for a long time, the inner shell is prevented from being too low in temperature within a certain time, and the charging and discharging performance of the lithium ion battery cells.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A high-safety scale interval type lithium ion battery pack comprises a set fixing plate (4) and a plurality of lithium ion battery monomers (5) fixedly connected to the set fixing plate (4), and is characterized in that the lithium ion battery monomers (5) are distributed in a staggered mode, a gap is formed between every two adjacent lithium ion battery monomers (5), and an included angle formed between a plane where the lithium ion battery monomers (5) are located and a plane where the set fixing plate (4) is located is 30-70 degrees;
the lithium ion battery is characterized in that a protection component (7) is sleeved on the lithium ion battery monomer (5), a protection groove (701) matched with the lithium ion battery monomer (5) is formed in the protection component (7), a phase change material (11) is filled in the protection component (7), and the phase change material (11) is located between every two adjacent lithium ion battery monomers (5).
2. The high-safety scale-spacing lithium ion battery pack according to claim 1, wherein an included angle between a plane of the lithium ion battery cells (5) and a plane of the collecting and fixing plate (4) is 45 degrees.
3. The high-safety scale-spacing lithium ion battery pack as claimed in claim 1, wherein a control component (6) is fixedly connected to the upper end of the collecting and fixing plate (4), and the control component (6) comprises a protective shell.
4. The high-safety scale spacer lithium ion battery pack as claimed in claim 3, wherein a first inclined surface is provided at one end of the protective shell close to the protective component (7), and a second inclined surface matched with the first inclined surface is provided on the protective component (7), and the first inclined surface is in contact with the second inclined surface.
5. The high-safety scale spacer lithium ion battery pack as claimed in claim 1, further comprising a sealing box (1) and a sealing cover (2) which are matched with each other, wherein the sealing ring (12) is fixedly installed at the edge of the sealing cover (2), and the collecting and fixing plate (4) is fixedly installed on the inner bottom plate of the sealing box (1).
6. The high-safety scale spacer lithium ion battery pack is characterized in that a first threaded hole (101) is formed in the sealing box (1), a second threaded hole (201) is formed in the sealing cover (2), and a bolt (3) is connected between the first threaded hole (101) and the second threaded hole (201) in a threaded manner.
7. The high-safety scale interval type lithium ion battery pack is characterized in that a plurality of damping vertical plates (8) are fixedly connected to the upper end of the protection component (7), an abutting plate (9) is fixedly connected to the upper ends of the damping vertical plates (8), and the abutting plate (9) is in contact with the sealing cover (2).
8. The high-safety scale spacer lithium ion battery pack as claimed in claim 7, wherein the protection component (7), the vertical damping plate (8) and the abutting plate (9) are of an integrated structure.
9. The high-safety scale-spaced lithium ion battery pack as claimed in claim 1, wherein a plurality of heat-conducting shells (10) are arranged in the protective component (7), and the phase-change material (11) is located in each heat-conducting shell (10).
10. The lithium ion battery pack with high safety scale interval of claim 9, wherein the heat conducting shell (10) is made of metal, and the heat conducting shell (10) has heat dissipating fins on both the inner and outer surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746308.6A CN111785887A (en) | 2020-07-29 | 2020-07-29 | High-safety scale interval type lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746308.6A CN111785887A (en) | 2020-07-29 | 2020-07-29 | High-safety scale interval type lithium ion battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111785887A true CN111785887A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746308.6A Pending CN111785887A (en) | 2020-07-29 | 2020-07-29 | High-safety scale interval type lithium ion battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464940A (en) * | 2022-01-05 | 2022-05-10 | 徐州汉峰新能源科技有限公司 | High-safety rechargeable battery |
-
2020
- 2020-07-29 CN CN202010746308.6A patent/CN111785887A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464940A (en) * | 2022-01-05 | 2022-05-10 | 徐州汉峰新能源科技有限公司 | High-safety rechargeable battery |
| CN114464940B (en) * | 2022-01-05 | 2024-03-15 | 徐州汉峰新能源科技有限公司 | High-safety rechargeable battery |
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