CN219979662U - Battery heat preservation device containing phase-change energy storage material - Google Patents
Battery heat preservation device containing phase-change energy storage material Download PDFInfo
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- CN219979662U CN219979662U CN202321286107.8U CN202321286107U CN219979662U CN 219979662 U CN219979662 U CN 219979662U CN 202321286107 U CN202321286107 U CN 202321286107U CN 219979662 U CN219979662 U CN 219979662U
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- Prior art keywords
- energy storage
- battery
- layer
- box body
- heat preservation
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- 238000004146 energy storage Methods 0.000 title claims abstract description 58
- 239000011232 storage material Substances 0.000 title claims abstract description 31
- 238000004321 preservation Methods 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 229920000742 Cotton Polymers 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a battery heat preservation device containing phase-change energy storage materials, which comprises a box body, a cover body and a battery body, wherein the box body is of a hollow box body structure with an opening at the top end, the battery body is placed in the box body, an energy storage layer and a heat preservation layer are arranged between the inner wall of the box body and the battery body, the phase-change energy storage materials are filled in the energy storage layer, the heat preservation layer is close to the inner wall of the box body, the energy storage layer is close to the battery body, and the outer wall of the energy storage layer is tightly connected with the battery body through a heat conducting sheet; the battery cover is characterized in that an opening is formed in the cover body, a charging and discharging interface is arranged on the battery body, the opening and the charging and discharging interface are correspondingly arranged, and an insulating layer and an energy storage layer are sequentially arranged at the bottom end of the cover body from top to bottom.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a battery heat preservation device containing a phase-change energy storage material.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses nonaqueous electrolyte solution, the lithium ion battery does not contain lithium in a metal state and can be charged, and the lithium battery has wide application due to the advantages of high energy ratio, long service life, high rated voltage, high power tolerance and the like;
when the lithium battery runs, the temperature environment greatly affects the lithium battery, and in general, when the temperature is lower than the optimal working temperature range, the lower the ambient temperature is, the lower the activity of active matters in the battery is, the higher the internal resistance and viscosity of electrolyte are, the more difficult the ion diffusion is, the battery is not easy to charge and discharge, the service life of the battery is seriously influenced, when the temperature is higher than the optimal working temperature range, the higher the temperature is, the charging and discharging efficiency of the battery is also influenced, the damage to the battery is more serious, the chemical balance in the battery is damaged, the performance of battery materials is degraded, and the service life of the battery is reduced;
however, the use of the lithium battery in a low-temperature environment can affect the working performance and the service life of the lithium battery, and a specific structure with a protective effect on the lithium battery in a low-temperature environment is not disclosed at present, so that the use requirement in the environment cannot be met.
Disclosure of Invention
The utility model aims to overcome the defects of the technology and provide a battery heat preservation device containing a phase-change energy storage material.
In order to solve the technical problems, the technical scheme provided by the utility model is that the battery heat preservation device containing the phase-change energy storage material comprises a box body, a cover body and a battery body, wherein the box body is of a hollow box body structure with an opening at the top end, the battery body is placed in the box body, an energy storage layer and a heat preservation layer are arranged between the inner wall of the box body and the battery body, the phase-change energy storage material is arranged in the energy storage layer, the heat preservation layer is close to the inner wall of the box body, the energy storage layer is close to the battery body, and the outer wall of the energy storage layer is tightly connected with the battery body through a heat conducting sheet;
the battery cover is characterized in that an opening is formed in the cover body, a charging and discharging interface is arranged on the battery body, the opening and the charging and discharging interface are correspondingly arranged, and an insulating layer and an energy storage layer are sequentially arranged at the bottom end of the cover body from top to bottom.
Further, the box is provided with two symmetrically arranged guide rails, the bottom end of the cover body is provided with a sliding groove which is arranged corresponding to the guide rails, and the cover body can linearly move along the extending direction of the guide rails.
Further, the heat preservation layer comprises a polyurethane layer, a mineral cotton layer and a phenolic foam layer which are sequentially arranged from inside to outside.
Further, connecting holes are respectively formed in four corners of the cover body and the box body, and the cover body and the box body form a detachable connecting structure through the connecting holes and bolts.
Further, temperature-resistant epoxy glue is arranged between the polyurethane layer and the mineral cotton layer and between the mineral cotton layer and the phenolic foam layer.
Compared with the prior art, the utility model has the advantages that:
1) The phase change energy storage material is arranged in the energy storage layer, the outer wall of the energy storage layer is tightly connected with the battery body through the heat conducting sheet, the phase change temperature of the phase change energy storage material is close to the optimal working temperature of the battery body, and the phase change energy storage material can absorb heat (cold) from the environment or release heat to the environment in the phase change process of the phase change energy storage material, so that the purposes of energy storage, energy release and energy demand and supply regulation are achieved; the heat conducting fin also has the function of improving heat conduction, and avoids supercooling and overheating of the working environment of the battery body, so that the temperature is kept constant;
2) The heat preservation layer has the function of preserving heat and plays an auxiliary role in keeping the working environment of the battery body constant temperature.
Drawings
FIG. 1 is a schematic diagram of a battery thermal insulation device containing a phase change energy storage material according to the present utility model;
FIG. 2 is a perspective view of a housing of a battery thermal insulation device containing a phase change energy storage material according to the present utility model;
FIG. 3 is a front view of a housing of a battery thermal insulation device containing a phase change energy storage material according to the present utility model;
FIG. 4 is a cross-sectional view A-A of FIG. 3 of a battery thermal insulation device containing a phase change energy storage material according to the present utility model;
FIG. 5 is a perspective view of a cover of a battery thermal insulation device containing a phase change energy storage material according to the present utility model;
FIG. 6 is a front view of a cover of a battery thermal insulation device containing phase change energy storage material according to the present utility model;
FIG. 7 is a cross-sectional view B-B of FIG. 6 of a battery thermal insulation device containing a phase change energy storage material according to the present utility model.
As shown in the figure: 1. the battery comprises a box body, 2, a cover body, 3, a guide rail, 4, a battery body, 5, an energy storage layer, 6, an insulating layer, 7, a charge-discharge interface, 8, a heat conducting fin, 9, a chute, 10 and an opening.
Detailed Description
The battery thermal insulation device containing the phase change energy storage material is further described in detail below with reference to the accompanying drawings.
Referring to the drawings, the battery heat preservation device containing phase-change energy storage materials comprises a box body 1, a cover body 2 and a battery body 4, wherein the box body 1 is of a hollow box body structure with an opening at the top end, the battery body 4 is placed in the box body 1, an energy storage layer 5 and a heat preservation layer 6 are arranged between the inner wall of the box body 1 and the battery body 4, the phase-change energy storage materials are arranged in the energy storage layer 5, the heat preservation layer 6 is close to the inner wall of the box body 1, the energy storage layer 5 is close to the battery body 4, and the outer wall of the energy storage layer 5 is tightly connected with the battery body 4 through a heat conducting sheet 8;
the battery cover is characterized in that an opening 10 is formed in the cover body 2, a charging and discharging interface 7 is arranged on the battery body 4, the opening 10 is correspondingly arranged with the charging and discharging interface 7, and an insulating layer 6 and an energy storage layer 5 are sequentially arranged at the bottom end of the cover body 2 from top to bottom.
As a preferred embodiment of this embodiment, the case 1 is provided with two symmetrically arranged guide rails 3, the bottom end of the cover 2 is provided with a chute 9 corresponding to the guide rails 3, and the cover 2 can perform linear movement along the extending direction of the guide rails 3.
As a preferred embodiment of this example, the heat insulation layer 6 includes a polyurethane layer, a mineral wool layer and a phenolic foam layer sequentially disposed from inside to outside.
As a preferred implementation manner of this embodiment, the four corners of the cover 2 and the box 1 are respectively provided with a connecting hole, and the cover 2 and the box 1 form a detachable connecting structure through the connecting holes and bolts.
As a preferred implementation of this example, a temperature-resistant epoxy glue is provided between the polyurethane layer and the mineral wool layer, and between the mineral wool layer and the phenolic foam layer.
When the battery body 4 is put into the inner cavity of the box body 1, the cover body 2 is connected with the box body 1 through the matching of the guide rail 3 and the sliding chute 9, the four corners of the cover body 2 and the box body 1 are respectively provided with a connecting hole, and the cover body 2 and the box body 1 form a detachable connecting structure through the connecting holes and bolts;
the inner cavity of the box body 1 is provided with the energy storage layer 5 and the heat preservation layer 6, and the outer wall of the energy storage layer 5 is tightly connected with the battery body 4 through the heat conducting sheet 8, wherein the main components of the phase change energy storage material are paraffin and metal powder, the phase change temperature of the phase change energy storage material is close to the optimal working temperature of the battery body 4, and the phase change energy storage material can absorb heat (cold) from the environment or release heat to the environment in the phase change process, so that the purposes of energy storage, energy release and energy demand and supply regulation are achieved;
the heat conducting fin 6 also has the function of improving heat conduction, and avoids supercooling and overheating of the working environment of the battery body 4, so that the temperature is kept constant; the heat preservation layer has the function of preserving heat and plays an auxiliary role in keeping the working environment of the battery body constant temperature; therefore, the method can be used for solving the problems of poor working performance and shortened service life of the lithium battery in a low-temperature environment;
in addition, in order to take account of the fact that the charge and discharge interfaces of the battery bodies 4 of different models may have different setting orientations, the opening 10 is not limited to be formed on the cover 2, but may be formed at any position of the case 1.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (5)
1. The battery heat preservation device with the phase-change energy storage materials is characterized by comprising a box body (1), a cover body (2) and a battery body (4), wherein the box body (1) is of a hollow box body structure with an opening at the top end, the battery body (4) is placed in the box body (1), an energy storage layer (5) and a heat preservation layer (6) are arranged between the inner wall of the box body (1) and the battery body (4), the phase-change energy storage materials are filled in the energy storage layer (5), the heat preservation layer (6) is close to the inner wall of the box body (1), the energy storage layer (5) is close to the battery body (4), and the outer wall of the energy storage layer (5) is tightly connected with the battery body (4) through a heat conducting sheet (8);
the battery is characterized in that an opening (10) is formed in the cover body (2), a charging and discharging interface (7) is arranged on the battery body (4), the opening (10) is arranged corresponding to the charging and discharging interface (7), and an insulating layer (6) and an energy storage layer (5) are sequentially arranged at the bottom end of the cover body (2) from top to bottom.
2. The battery heat preservation device containing the phase-change energy storage material according to claim 1, wherein the box body (1) is provided with two symmetrically arranged guide rails (3), a sliding groove (9) which is arranged corresponding to the guide rails (3) is formed in the bottom end of the cover body (2), and the cover body (2) can linearly move along the extending direction of the guide rails (3).
3. The battery thermal insulation device containing the phase-change energy storage material according to claim 1, wherein the thermal insulation layer (6) comprises a polyurethane layer, a mineral wool layer and a phenolic foam layer which are sequentially arranged from inside to outside.
4. The battery heat preservation device with the phase-change energy storage material according to claim 1, wherein connecting holes are respectively formed in four corners of the cover body (2) and the box body (1), and the cover body (2) and the box body (1) form a detachable connecting structure through the connecting holes and bolts.
5. A battery thermal insulation device containing phase change energy storage material according to claim 3, wherein a temperature resistant epoxy glue is arranged between the polyurethane layer and the mineral wool layer and between the mineral wool layer and the phenolic foam layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321286107.8U CN219979662U (en) | 2023-05-25 | 2023-05-25 | Battery heat preservation device containing phase-change energy storage material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321286107.8U CN219979662U (en) | 2023-05-25 | 2023-05-25 | Battery heat preservation device containing phase-change energy storage material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979662U true CN219979662U (en) | 2023-11-07 |
Family
ID=88592846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321286107.8U Active CN219979662U (en) | 2023-05-25 | 2023-05-25 | Battery heat preservation device containing phase-change energy storage material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979662U (en) |
-
2023
- 2023-05-25 CN CN202321286107.8U patent/CN219979662U/en active Active
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