CN210837809U - Soft package shell for lithium battery, soft package lithium battery applying same and lithium battery pack - Google Patents
Soft package shell for lithium battery, soft package lithium battery applying same and lithium battery pack Download PDFInfo
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- CN210837809U CN210837809U CN201921108026.2U CN201921108026U CN210837809U CN 210837809 U CN210837809 U CN 210837809U CN 201921108026 U CN201921108026 U CN 201921108026U CN 210837809 U CN210837809 U CN 210837809U
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- lithium battery
- lithium cell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a soft packet of lithium cell casing and use its soft packet of lithium cell for lithium cell, its characterized in that: the shape and the size of soft packet of casing and the appearance and the size phase-match of the lithium cell of its cladding, the casing comprises two-layer packing material like the plastic-aluminum membrane at least, each layer packing material has the ductility, has a plurality of cavity between the adjacent two-layer packing material wherein at least, gaseous state or solid-state filler or its combination have in the cavity, soft packet of casing has simple structure, and the thinking is novel, be convenient for advantages such as installation, has extensive application prospect in the aspect of lithium cell packing and protection.
Description
Technical Field
The utility model relates to a casing for lithium cell and lithium cell thereof, concretely relates to soft packet of casing for lithium cell and use its soft packet of lithium cell and lithium cell group.
Background
With the proposal of green energy concept and the development of lithium battery technology, the application of lithium batteries is more and more extensive, and the lithium batteries are generally divided into two types, namely soft shells and hard shells according to different shell materials. In order to ensure the use and transportation safety of the lithium battery, the lithium battery cannot be strongly extruded in the use and transportation processes, so that the shock absorption is needed, and the danger caused by extrusion or vibration is prevented. Different from a hard shell lithium battery, the soft shell lithium battery is generally protected by a single or a plurality of soft shell lithium batteries connected in series and parallel and then a shell because the outer package is made of soft materials such as the existing common aluminum plastic film. However, if the added shell is hard, the volume and the weight of the single battery and the battery pack are increased, even the capacitance density of the battery is reduced, and the hard shell is easy to deform under the extrusion, so that the serious safety hazard is also existed. Therefore, it is important to provide a pouch case for a lithium battery, which can absorb shock, prevent the battery from being strongly pressed or withstand the pressing, and can be safely and reliably used without reducing the capacity density of the battery.
Disclosure of Invention
For overcoming exist not enough among the background art, the utility model provides a soft packet of casing and use its soft packet of lithium cell and lithium cell group for lithium cell, the utility model relates to a simply, the structure is ingenious, and can improve soft packet of lithium cell's shock resistance, insulating nature effectively and avoid powerful extrusion, can realize protection etc. to lithium cell inner core to reduce and use and transport the risk, improve soft packet of lithium cell's security, stability and life-span.
An object of the utility model is to provide a soft packet of casing for lithium cell.
The second purpose of the utility model is to provide an adopt the first purpose soft packet of lithium cell or lithium cell group of soft packet of casing.
In order to achieve the above purpose, the first purpose of the present invention adopts the following technical solution: the utility model provides a soft packet of casing for lithium cell which characterized in that: the shape and the size of soft packet of casing and the appearance and the size phase-match of the lithium cell of its cladding, soft packet of casing comprises two-layer packing material at least, has a plurality of cavity between two adjacent layer packing material wherein at least, have gaseous state or solid-state filler or its combination in the cavity.
In order to realize better technical effect, the utility model discloses purpose one a soft packet of casing's for lithium cell technical characterstic can also specifically be following technical characterstic:
1. the soft package shell is made of materials and at least comprises a PP layer, an aluminum film layer and a nylon three-layer package from inside to outside, wherein a plurality of cavities are arranged between the PP layer and the aluminum film layer or between the aluminum film layer and the nylon, and gaseous or solid fillers or combinations thereof are arranged in the cavities.
2. The soft package shell is at least composed of a PP layer, an aluminum film layer and a nylon three-layer package material from inside to outside, wherein a plurality of cavities are arranged between the PP layer and the aluminum film layer and between the aluminum film layer and the nylon at the same time, and gaseous or solid fillers or combinations thereof are arranged in the cavities.
3. Further, the gaseous filling is one or a combination of several of nitrogen, inert gas and flame retardant gas.
4. Further, the solid filler is flame retardant powder.
5. Further, the layers of wrapper are extensible.
Realize the utility model discloses purpose two's a soft packet of lithium cell of using soft packet of casing can adopt following technical scheme: the utility model provides an use soft packet of lithium cell of soft packet of casing, contains lithium cell core and soft packet of casing, its characterized in that: soft packet of casing does the utility model discloses a purpose technical scheme a soft packet of casing for lithium cell, the cladding of soft packet of casing is in the outside of lithium cell core, and the electrode of lithium cell core stretches out outside soft packet of casing.
Similarly, the soft package shell of the first object of the present invention can also be applied to a lithium battery pack.
The third purpose of the utility model is to provide a soft packet of lithium cell group of using soft packet of casing, use the utility model discloses the technical scheme of first purpose soft packet of casing of lithium cell form the group battery that has soft packet of casing in the group battery combination.
The technical scheme is as follows: the utility model provides an use soft packet of lithium cell group of soft packet of casing, contains lithium cell group and soft packet of casing, lithium cell group is formed by the combination of a plurality of lithium cell, its characterized in that: soft packet of casing does the utility model aims at one technical scheme a soft packet of casing for lithium cell, soft packet of casing cladding is in the outside of lithium cell group, and the electrode of lithium cell group exposes or stretches out outside soft packet of casing.
In order to realize better technical effect, the utility model discloses the technical scheme of purpose two, three lithium cell/lithium cell group technical characterstic can also specifically be following technical characteristics:
1. the lithium battery pack is characterized in that the periphery of the soft package shell is sealed with the lithium battery core, and a cavity is formed between the inner side face of the soft package shell and the outer surface of the lithium battery core.
2. And a cavity between the inner side surface of the soft package shell and the outer surface of the lithium battery core is filled with gas and/or solid fillers.
3. The gas filled in the cavity is one or a combination of several of nitrogen, inert gas and flame retardant gas; the solid filler is flame-retardant powder.
Adopt technical scheme as above, the utility model discloses the superiority as follows has:
1. compared with a lithium battery or a lithium battery pack packaged by a hard shell, the soft package shell effectively reduces the weight of the shell, increases the capacitance density of the battery, increases the capacitance density of each gram of battery, and improves the overall performance of the lithium battery or the lithium battery pack;
2. the soft package shell is adopted to protect the lithium battery, so that hidden dangers caused by vibration, extrusion and other conditions of the lithium battery in the using process can be reduced;
3. the chamber is arranged in the soft package shell, and gas or solid filler is filled in the chamber, so that the shock absorption is uniform, and the shock absorption and extrusion prevention effects are stable;
4. compared with the common soft package battery, the soft package shell of the utility model has the advantages that a protective layer is added on the lithium battery or the lithium battery pack, especially the soft package lithium battery, double insulation and double protection are realized, the soft package shell is more wear-resistant, extrusion-resistant and shock-resistant, the insulation performance and explosion-proof performance are improved, the safety and reliability of the soft package battery are improved, and the service life is prolonged;
5. the battery core monomer can be packaged and precisely protected, and the lithium battery pack can be packaged and protected to reduce the volume;
6. a cavity is sealed and arranged between the soft package shell and the battery cell/battery pack, gas or solid filler such as nitrogen, inert gas, flame retardant gas and/or flame retardant powder or a combination of several of the nitrogen, the inert gas, the flame retardant gas and/or the flame retardant powder is filled in the cavity, the shock resistance and the flame retardant effect are good, and the safety of the battery is improved;
7. the utility model discloses a soft packet of casing simple structure easily makes and installs, effective reduce cost.
Drawings
FIG. 1 is a front view of a first embodiment of a soft pack housing for a lithium battery, object one of the present invention
Fig. 2 is a top view of the pouch casing of the lithium battery shown in fig. 1
Fig. 3 is a schematic view showing the soft pack case of the lithium battery shown in fig. 1 being unfolded
Fig. 4 is a schematic perspective view of an embodiment of a soft-packed lithium battery of a soft-packed case of a second objective of the present invention
Fig. 5 is a front view of the soft-packed lithium battery of the soft-packed case of the second objective of the present invention shown in fig. 4
In the figure, 1 is a soft package shell; 2 is a chamber; 3 is the lithium cell core, and 4 is the electrode of lithium cell core, and 11 are soft packet of shell 1's first layer packing material (PP layer), and 12 are soft packet of shell 1's second packing material (aluminium membrane), and 13 are soft packet of shell 1's third layer packing material (nylon layer).
The specific implementation mode is as follows:
the first embodiment of the first object of the present invention will be described in detail below with reference to fig. 1 to 3.
The first embodiment is as follows:
as shown in fig. 1-3, in this embodiment, realize the utility model discloses a soft-packaged shell for lithium cell of a purpose one, soft-packaged shell's shape and size and the appearance and the size phase-match of the lithium cell of its cladding, soft-packaged shell is the plastic-aluminum membrane, and soft-packaged shell 1 comprises PP layer 11, aluminium rete 12 and nylon layer 13 three-layer packing material by interior and outside at least, the PP layer is first layer packing material 11, and the aluminium rete is second packing material 12, and the nylon layer is the nylon layer for third layer packing material 13. In this embodiment, a plurality of chambers 2 are arranged between the first packaging material PP layer 11 and the second packaging material aluminum film layer 12, and the chambers 2 are filled with gaseous filling materials. In practical applications, the chamber 2 may be filled with a solid filling or with a solid and gaseous filling at the same time.
In practical application, the soft package shell can also be formed by two or three layers of aluminum-plastic films, a plurality of cavities 2 are arranged between two adjacent layers of aluminum-plastic films, and gaseous or solid fillers or a combination of the gaseous or solid fillers are arranged in the cavities 2.
In practice, the wrapper layers may be made of other materials having extensibility.
Preferably, the gaseous filling is a flame retardant gas.
Preferably, the gaseous filling is one or a combination of several of nitrogen, inert gas and flame retardant gas.
Preferably, the solid filler is a flame retardant powder.
Example two
An embodiment of the second object of the present invention will be described in detail below with reference to fig. 4 to 5.
The utility model provides an use soft packet of lithium cell of soft packet of casing, contains lithium cell core and soft packet of casing, its characterized in that: soft packet of casing 1 does the utility model discloses purpose one technical scheme the soft packet of casing of lithium cell, soft packet of casing 1 cladding is in lithium cell 3's outside, soft packet of casing 1's shape and size and the appearance and the size phase-match of lithium cell 3 that its cladding was covered, the electrode of lithium cell stretches out outside soft packet of casing 1. In this embodiment, soft packet of casing is the soft packet of casing that fig. 1-3 are shown, soft packet of casing 1 comprises three- layer packing material 11, 12, 13, first layer packing material 11 is the PP layer, and second time packing material 12 is the aluminium rete, and third layer packing material 13 is the nylon layer, a plurality of cavity 2 has between first layer packing material 11 and the first layer packing material 12, gaseous filler has in the cavity 2. In practical applications, the chamber 2 may be filled with solid filler instead or with solid and gaseous fillers simultaneously.
In practice, the layers of wrapper may also be of other suitable materials.
In practical application, the soft package shell can also be formed by two or three layers of aluminum-plastic films, a plurality of cavities 2 are arranged between two adjacent layers of aluminum-plastic films, and gaseous or solid fillers or a combination of the gaseous and solid fillers are arranged in the cavities 2.
In practical application, it is sealed all around between soft packet of casing 1 and the lithium cell 3, can closely laminate also can have a cavity between soft packet of 1 medial surface of casing and the 3 surface of lithium cell, and pack gas and/or solid-state filler in the cavity.
Preferably, the gas filled in the cavity is one or a combination of several of nitrogen, inert gas and flame retardant gas, and the solid filler can be flame retardant powder.
The third purpose of the utility model is to provide a soft packet of lithium cell group of using soft packet of casing, use the utility model discloses the technical scheme of first purpose soft packet of casing of lithium cell form the group battery that has soft packet of casing in the group battery combination. Technical scheme as follows, a soft packet of lithium cell group of soft packet of casing of application contains lithium cell group and soft packet of casing, lithium cell group is formed by the combination of a plurality of lithium cell, its characterized in that: soft packet of casing 1 does the utility model aims at a technical scheme the soft packet of casing of lithium cell, the cladding of soft packet of casing is in the outside of lithium cell group, and the electrode of lithium cell group exposes or stretches out outside soft packet of casing.
In practice, the layers of wrapper may also be of other suitable materials. The soft package shell can also be composed of two layers or three layers of aluminum-plastic films, a plurality of cavities 2 are arranged between two adjacent layers of aluminum-plastic films, and gaseous or solid fillers or a combination of the gaseous and solid fillers are arranged in the cavities 2.
The part of the utility model not detailed is prior art. The technical solution of the first object of the present invention can be explained in more detail by the above embodiments, but the present invention is not limited to the above embodiments, and all other changes and modifications belonging to the embodiments within the scope of the present invention are within the protection scope of the present invention.
The utility model has the advantages of simple structure, novel thought, the installation of being convenient for, have extensive application prospect in the aspect of lithium cell packing and protection.
Claims (14)
1. The utility model provides a soft packet of casing for lithium cell which characterized in that: the shape and the size of soft packet of casing and the appearance and the size phase-match of the lithium cell that it wraps, and packet of casing (1) comprises two-layer packing thing at least, each layer packing thing has the ductility, has a plurality of cavity (2) between two adjacent layer packing thing wherein at least, gaseous state or solid-state filler have in cavity (2).
2. The pouch casing for a lithium battery as claimed in claim 1, wherein: soft packet of casing (1) comprises PP layer, aluminium rete and nylon three-layer packing by interior to outer at least, wherein has a plurality of cavity (2) between PP layer and aluminium rete or between aluminium rete and the nylon, has gaseous state or solid-state filler in cavity (2).
3. The pouch casing for a lithium battery as claimed in claim 1 or 2, wherein: soft packet of casing (1) is the plastic-aluminum membrane, and it comprises PP layer, aluminium rete and nylon three-layer packing material by interior to outer at least, has a plurality of cavity (2) simultaneously between PP layer and aluminium rete, aluminium rete and nylon, has gaseous state or solid-state filler in cavity (2).
4. The pouch casing for a lithium battery as set forth in any one of claims 1 to 2, wherein: the gaseous filling is one of nitrogen, inert gas and flame retardant gas.
5. The pouch casing for a lithium battery as set forth in any one of claims 1 to 2, wherein: the solid filler is flame-retardant powder.
6. The pouch casing for a lithium battery as claimed in claim 1, wherein: the layers of wrapper are extensible.
7. The pouch casing for a lithium battery as claimed in claim 3, wherein: the gaseous filling is one of nitrogen, inert gas and flame retardant gas.
8. The pouch casing for a lithium battery as claimed in claim 3, wherein: the solid filler is flame-retardant powder.
9. The pouch casing for a lithium battery as claimed in claim 4, wherein: the solid filler is flame-retardant powder.
10. The utility model provides an use soft packet of lithium cell of soft packet of casing, contains lithium cell core and soft packet of casing, its characterized in that: the soft package shell (1) is the soft package shell for the lithium battery as claimed in any one of claims 1 to 9, the soft package shell (1) is wrapped outside the lithium battery core (3), and an electrode of the lithium battery core extends out of the soft package shell (1).
11. The lithium battery pack using a soft pack case according to claim 10, wherein: seal all around between soft packet of casing (1) and lithium cell core (3), there is the cavity between soft packet of casing (1) medial surface and lithium cell core (3) surface.
12. The lithium battery pack using a soft pack case according to claim 11, wherein: and a cavity between the inner side surface of the soft package shell (1) and the outer surface of the lithium battery core (3) is filled with gas and/or solid fillers.
13. The lithium battery pack using a soft pack case according to claim 12, wherein: the gas filled in the cavity is one of nitrogen, inert gas and flame retardant gas; the solid filler is flame-retardant powder.
14. The utility model provides an use soft packet of lithium cell group of soft packet of casing, contains lithium cell group and soft packet of casing, lithium cell group is formed by the combination of a plurality of lithium cell, its characterized in that: the soft pack case according to any one of claims 1 to 9, wherein the soft pack case is coated outside the lithium battery pack, and electrodes of the lithium battery pack are exposed or protrude outside the soft pack case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108026.2U CN210837809U (en) | 2019-07-16 | 2019-07-16 | Soft package shell for lithium battery, soft package lithium battery applying same and lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108026.2U CN210837809U (en) | 2019-07-16 | 2019-07-16 | Soft package shell for lithium battery, soft package lithium battery applying same and lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210837809U true CN210837809U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921108026.2U Active CN210837809U (en) | 2019-07-16 | 2019-07-16 | Soft package shell for lithium battery, soft package lithium battery applying same and lithium battery pack |
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| CN (1) | CN210837809U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331966A (en) * | 2019-07-16 | 2021-02-05 | 福建福夏科技有限责任公司 | Soft package shell for lithium battery and soft package lithium battery applying same |
| CN114883716A (en) * | 2021-02-05 | 2022-08-09 | 天津海狸新能源科技有限公司 | Soft packet of casing's modularization lithium cell |
-
2019
- 2019-07-16 CN CN201921108026.2U patent/CN210837809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331966A (en) * | 2019-07-16 | 2021-02-05 | 福建福夏科技有限责任公司 | Soft package shell for lithium battery and soft package lithium battery applying same |
| CN114883716A (en) * | 2021-02-05 | 2022-08-09 | 天津海狸新能源科技有限公司 | Soft packet of casing's modularization lithium cell |
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