CN115084732A - Preparation method of battery shell, battery shell and battery - Google Patents
Preparation method of battery shell, battery shell and battery Download PDFInfo
- Publication number
- CN115084732A CN115084732A CN202210858432.0A CN202210858432A CN115084732A CN 115084732 A CN115084732 A CN 115084732A CN 202210858432 A CN202210858432 A CN 202210858432A CN 115084732 A CN115084732 A CN 115084732A
- Authority
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- China
- Prior art keywords
- box body
- side plates
- bottom plate
- battery
- body side
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002360 preparation method Methods 0.000 title abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a preparation method of a battery shell, the battery shell and a battery, and relates to the field of batteries. The preparation method of the battery shell comprises the following steps: cutting a box body bottom plate, a box body upper cover and a plurality of box body side plates on the plate raw material, so that the plurality of box body side plates are sequentially distributed on the periphery of the box body bottom plate, and the box body upper cover is connected with one of the plurality of box body side plates; pressing creases along the connecting tracks of the side plates of the box body, which are respectively connected with the bottom plate of the box body and the upper cover of the box body; folding the plurality of box body side plates relative to the box body bottom plate by taking the creases corresponding to the plurality of box body side plates as folding positions, so that the plurality of box body side plates and the box body bottom plate form included angles; and welding gaps between the plurality of groups of adjacent box body side plates to form a battery cell accommodating space which is selectively sealed by the box body upper cover by the plurality of box body side plates and the box body bottom plate, so as to obtain the battery shell. The preparation method of the battery shell provided by the invention can be used for preparing the battery shell with better structural stability and higher strength.
Description
Technical Field
The invention relates to the field of batteries, in particular to a battery shell, a preparation method of the battery shell and a battery.
Background
At present, a shell adopted by a battery on the market is generally formed by assembling and welding a plurality of independent split structures, the structural stability is poor, the strength is low, and the situations of deformation, liquid leakage and the like are easy to occur.
Disclosure of Invention
The invention aims to provide a preparation method of a battery shell, which can be used for preparing the battery shell with better structural stability and higher strength.
Another object of the present invention is to provide a battery case having improved structural stability and strength.
It is still another object of the present invention to provide a battery having improved structural stability and strength.
The invention provides a technical scheme that:
a battery case preparation method, comprising:
cutting a box body bottom plate, a box body upper cover and a plurality of box body side plates from a plate material, so that the plurality of box body side plates are sequentially distributed on the periphery of the box body bottom plate, and the box body upper cover is connected with one of the plurality of box body side plates;
the box body bottom plate is connected with the box body upper cover through a plurality of box body side plates;
folding the box body side plates relative to the box body bottom plate by taking the creases corresponding to the box body side plates as folding positions, so that the box body side plates and the box body bottom plate form included angles;
and welding a plurality of groups of gaps between the adjacent two box body side plates to form a plurality of battery cell accommodating spaces which are selectively covered by the box body upper cover by enclosing the box body side plates and the box body bottom plate, so as to obtain the battery shell.
Further, before the step of cutting the box bottom plate, the box upper cover and the plurality of box side plates from the plate material, the method for manufacturing the battery shell further comprises the following steps:
and shaping the plate raw material.
Further, the shaping treatment comprises processing the thickness of the plate raw material to be 0.1 mm-0.5 mm, and processing the surface flatness of the plate raw material to be within +/-0.05 mm.
Further, before the step of creasing the connection tracks respectively connected to the case bottom plate and the case upper cover along the plurality of case side plates, the method for manufacturing a battery case further includes:
and respectively pressing reinforcing ribs on the box body side plates, wherein the directions of the pressing reinforcing ribs are consistent with the directions of the pressing creases.
Further, the step of welding gaps between a plurality of groups of adjacent two box body side plates comprises:
and laser welding is adopted, after the gaps between the box body side plates are sequentially prewelded, the gaps between the box body side plates are sequentially fully welded.
The invention also provides a battery shell, which comprises an integrally formed box body bottom plate, a box body upper cover and a plurality of box body side plates, wherein the box body side plates are respectively arranged on the periphery of the box body bottom plate, the box body side plates and the box body bottom plate jointly enclose an electric core accommodating space with an opening at the top end, the box body upper cover is connected with one of the box body side plates, and the box body upper cover is used for being turned over relative to the box body side plates under the action of external force so as to seal and cover the electric core accommodating space.
Furthermore, a plurality of box body side plates are all included angles with the box body bottom plate, and are randomly adjacent to each other, and laser welding is carried out between the box body side plates.
Furthermore, a plurality of reinforcing ribs are arranged on the side plates of the box body.
Furthermore, the extending directions of the plurality of reinforcing ribs and the side edges of the box body bottom plate corresponding to the reinforcing ribs are respectively the same.
The invention also provides a battery, which comprises the battery shell, wherein the battery shell comprises a box body bottom plate, a box body upper cover and a plurality of box body side plates which are integrally formed, the plurality of box body side plates are respectively arranged on the periphery of the box body bottom plate, the plurality of box body side plates and the box body bottom plate jointly enclose an electric core accommodating space with an opening at the top end, the box body upper cover is connected with one of the plurality of box body side plates, and the box body upper cover is used for being turned over relative to the box body side plates under the action of external force so as to seal and cover the electric core accommodating space.
Compared with the prior art, the preparation method of the battery shell provided by the invention has the advantages that the battery shell with the integrated structure is obtained by cutting, creasing, folding and welding the plate raw material with the integrated structure. Therefore, the preparation method of the battery shell provided by the invention has the beneficial effects that: the battery shell with better structural stability and higher strength can be prepared.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a block flow diagram of a method for manufacturing a battery case according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a plate material after cutting;
FIG. 3 is a schematic structural diagram of a plate material after being pressed with reinforcing ribs and folding marks;
FIG. 4 is a schematic structural view of a battery case;
fig. 5 is a schematic structural view of the battery case shown in fig. 4 in a closed state.
Icon: 10-plate raw material; 11-folding; 12-reinforcing ribs; 100-a battery case; 110-cassette bottom plate; 120-box body upper cover; 130-box side plate; 140-cell storage space.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Examples
Referring to fig. 1, fig. 1 is a block flow diagram illustrating a method for manufacturing a battery case 100 according to the present embodiment, where the method for manufacturing the battery case 100 includes the following steps:
step S101 is to perform a shaping process on the sheet material 10.
The sheet material 10 is actually an aluminum plate or a steel plate, and in the actual processing, the shaping process is actually to perform a preliminary processing on the sheet material 10 to meet the process requirements for producing the battery case 100.
The shaping process includes adjusting the size, shape, and the like of the raw plate material 10, and in this embodiment, the shaping process includes processing the thickness of the raw plate material 10 to 0.1mm to 0.5mm, and further includes processing the surface flatness of the raw plate material 10 to within ± 0.05 mm. In other embodiments, the specific content of the shaping process is adjusted according to the parameters of the battery case 100 to be actually produced.
Referring to fig. 1, the method for manufacturing the battery case 100 further includes:
step S102, cutting the plate material 10 to form a box bottom plate 110, a box top cover 120 and a plurality of box side plates 130, so that the plurality of box side plates 130 are sequentially distributed on the periphery of the box bottom plate 110, and the box top cover 120 is connected to one of the plurality of box side plates 130.
Referring to fig. 2, fig. 2 is a schematic structural diagram of the plate material 10 after cutting.
The plate material 10 can be cut by die cutting, laser cutting, water cutting, etc., and it can be understood that the cut plate material 10 has the box bottom plate 110, the box top cover 120 and the plurality of box side plates 130 as an integral structure.
It is understood that step S102 actually cuts out the sheet material margin in advance, which is generated in the subsequent folding process.
Referring to fig. 1, the method for manufacturing the battery case 100 further includes:
in step S103, the reinforcing ribs 12 are pressed on the plurality of case side plates 130, respectively.
In order to further improve the strength of the prepared battery case 100, the reinforcing ribs 12 are respectively pressed on the plurality of case body side plates 130 before the case is molded through step S103, and the reinforcing ribs 12 are molded on each of the plurality of case body side plates 130, so that the structural strength of the plurality of case body side plates 130 is significantly improved.
The reinforcing ribs 12 with different shapes, such as triangle, straight line, diamond, etc., can be formed on the plurality of box body side plates 130 by replacing the pressing mold. The depth of the reinforcing rib 12 is 0.1mm to 0.5mm in the embodiment, in other embodiments, the depth value can be adjusted according to actual requirements, and the reinforcing rib 12 can be of a continuous structure or a segmented structure.
Referring to fig. 1, the method for manufacturing the battery case 100 further includes:
step S104 is to press the folding line 11 along the connection tracks of the plurality of case side plates 130 respectively connected to the case bottom plate 110 and the case top cover 120.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a plate material 10 after pressing a reinforcing rib 12 and a fold 11.
In fact, in this embodiment, the direction of the pressing rib 12 is kept coincident with the direction of the pressing crease 11. I.e. both the ribs 12 and the folds 11 are recessed from the same side of the sheet material 10 to the other side. After the sheet material 10 is subsequently folded and formed by the fold 11, the reinforcing ribs 12 are all protruded to the outside of the battery case 100, so that the internal space of the battery case 100 is prevented from being occupied, and the capacity of the battery case 100 is improved.
Referring to fig. 1, the method for manufacturing the battery case 100 further includes:
step S105, taking the fold 11 corresponding to each of the plurality of box side panels 130 as a folding position, folding the plurality of box side panels 130 relative to the box bottom panel 110, so that the plurality of box side panels 130 form an included angle with the box bottom panel 110.
In this embodiment, the plurality of box side panels 130 are folded at 90 ° with the respective creases 11 as the folding positions with respect to the box bottom panel 110, that is, the plurality of box side panels 130 after being folded are all perpendicular to the box bottom panel 110.
Referring to fig. 1, the method for manufacturing the battery case 100 further includes:
step S106, welding a plurality of groups of gaps between two adjacent box body side plates 130, so that the plurality of box body side plates 130 and the box body bottom plate enclosure 110 form a battery cell accommodating space 140 selectively covered by the box body upper cover 120, and the battery case 100 is obtained.
Referring to fig. 4, fig. 4 is a schematic structural diagram of the battery case 100 prepared in fig. 4.
After the folding process in step S105 is completed, the battery case 100 is preliminarily formed, but there is a gap between adjacent box side plates 130, so that the gaps enclosed by all the box side plates 130 in pairs are welded and sealed in step S106, so that the plurality of box side plates 130 and the box bottom plate 110 enclose a battery cell accommodating space 140 that is open at one end away from the box bottom plate 110.
In this embodiment, laser welding is adopted, and after the gaps between the two adjacent box body side plates 130 of the plurality of groups are sequentially prewelded, the gaps between the two adjacent box body side plates 130 of the plurality of groups are sequentially fully welded.
In practical applications, after the battery cell is placed in the casing, an acting force is applied to the box upper cover 120 to drive the box upper cover 120 to turn over relative to the box side plates 130, so that the battery cell accommodating space 140 can be accurately sealed by the box upper cover 120. In this case, the top ends of the cartridge upper cover 120 and the plurality of cartridge side plates 130 are welded, so that the cell storage space 140 can be accurately and reliably sealed.
In summary, according to the method for manufacturing the battery case 100 provided by this embodiment, the plate material 10 of the integral structure is cut, folded and welded to obtain the battery case 100 of the integral structure, and the battery case 100 has better structural stability and higher structural strength. Moreover, since the box upper cover 120 and the box side plate 130 pre-press the folding line 11, the accurate positioning of the box upper cover 120 can be ensured during the subsequent cover closing, thereby ensuring the accurate welding and fixing of the box upper cover 120.
Fig. 4 and 5 are combined, and fig. 5 is a schematic structural diagram of the battery case 100 in a closed state.
The battery casing 100 provided in this embodiment includes an integrally formed casing bottom plate 110, a casing upper cover 120 and a plurality of casing side plates 130, the plurality of casing side plates 130 are respectively disposed at the periphery of the casing bottom plate 110, and the plurality of casing side plates 130 and the casing bottom plate 110 jointly enclose an electric core accommodating space 140 with an open top end, the casing upper cover 120 is connected to one of the plurality of casing side plates 130, and the casing upper cover 120 is used for turning over the electric core accommodating space 140 relative to the casing side plates 130 under the action of an external force.
In fact, the battery case 100 provided in this embodiment is prepared by the aforementioned method for preparing the battery case 100, i.e. the battery case is integrally formed by the plate material 10 made of aluminum or copper. The plurality of box side plates 130 are perpendicular to the box bottom plate 110, and any two adjacent box side plates 130 are laser welded. The plurality of box body side plates 130 are provided with reinforcing ribs 12, and the plurality of reinforcing ribs 12 are respectively the same as the extending direction of the side edge of the corresponding box body bottom plate 110.
Therefore, the battery case 100 provided by the embodiment has the characteristics of better structural stability and higher strength, and can ensure accurate packaging and improve the sealing property.
In addition, the present embodiment further provides a battery, which includes a battery cell and the aforementioned battery case 100, where the battery cell is accommodated in the cell accommodating space 140 of the battery case 100, and is sealed by welding after being covered by the case upper cover 120. Therefore, the battery that this embodiment provided has that structural stability is better, intensity is higher, the better characteristics of leakproofness.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of making a battery case, comprising:
cutting a box body bottom plate, a box body upper cover and a plurality of box body side plates from a plate material, so that the plurality of box body side plates are sequentially distributed on the periphery of the box body bottom plate, and the box body upper cover is connected with one of the plurality of box body side plates;
the box body bottom plate is connected with the box body upper cover through a plurality of box body side plates;
folding the box body side plates relative to the box body bottom plate by taking the creases corresponding to the box body side plates as folding positions, so that the box body side plates and the box body bottom plate form included angles;
and welding a plurality of groups of gaps between the adjacent two box body side plates to form a plurality of battery cell accommodating spaces which are selectively covered by the box body upper cover by enclosing the box body side plates and the box body bottom plate, so as to obtain the battery shell.
2. The method of claim 1, wherein prior to the step of cutting the case bottom plate, the case top cover, and the plurality of case side plates from the sheet material, the method further comprises:
and shaping the plate raw material.
3. The method of manufacturing a battery case according to claim 2, wherein the shaping process includes processing the plate material to a thickness of 0.1mm to 0.5mm, and further includes processing the plate material to a surface flatness within ± 0.05 mm.
4. The method of manufacturing a battery case according to claim 1, wherein before the step of creasing the connection tracks connected to the case bottom plate and the case top cover along the plurality of case side plates, respectively, the method further comprises:
and respectively pressing reinforcing ribs on the box body side plates, wherein the directions of the pressing reinforcing ribs are consistent with the directions of the pressing creases.
5. The method for preparing a battery case according to claim 1, wherein the step of welding a plurality of groups of gaps between two adjacent case side plates comprises:
and laser welding is adopted, after the gaps between the box body side plates are sequentially prewelded, the gaps between the box body side plates are sequentially fully welded.
6. The utility model provides a battery shell, its characterized in that, includes integrated into one piece's box body bottom plate, box body upper cover and a plurality of box body curb plate, a plurality of the box body curb plate set up respectively in the periphery of box body bottom plate, and a plurality of the box body curb plate with the box body bottom plate encloses into top open-ended electric core accommodation space jointly, the box body upper cover is with a plurality of one of them of box body curb plate is connected, the box body upper cover is used for turning over the book relatively the box body curb plate under the exogenic action, with the closing cap electric core accommodation space.
7. The battery case according to claim 6, wherein a plurality of the case side plates are each angled with respect to the case bottom plate, and any two adjacent case side plates are laser welded to each other.
8. The battery case as set forth in claim 6, wherein a plurality of the case side plates are provided with reinforcing ribs.
9. The battery case as set forth in claim 8, wherein a plurality of the reinforcing ribs are respectively extended in the same direction as the side edges of the bottom plate of the case body corresponding to each.
10. A battery comprising a battery case according to any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858432.0A CN115084732A (en) | 2022-07-20 | 2022-07-20 | Preparation method of battery shell, battery shell and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210858432.0A CN115084732A (en) | 2022-07-20 | 2022-07-20 | Preparation method of battery shell, battery shell and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115084732A true CN115084732A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210858432.0A Pending CN115084732A (en) | 2022-07-20 | 2022-07-20 | Preparation method of battery shell, battery shell and battery |
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| CN (1) | CN115084732A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1097850A (en) * | 1996-09-20 | 1998-04-14 | Mitsubishi Plastics Ind Ltd | Outer packaging sheet for parallelepiped battery |
| JP2001035451A (en) * | 1999-06-25 | 2001-02-09 | Mitsubishi Chemicals Corp | Battery packaging material and packaging method for battery |
| JP2012230859A (en) * | 2011-04-27 | 2012-11-22 | Sanyo Electric Co Ltd | Battery housing case and battery housing body |
| CN205790141U (en) * | 2016-07-13 | 2016-12-07 | 宁德时代新能源科技股份有限公司 | Battery modules |
| CN209045658U (en) * | 2018-12-29 | 2019-06-28 | 宁德时代新能源科技股份有限公司 | Battery case and battery modules |
| CN114374030A (en) * | 2022-02-10 | 2022-04-19 | 中创新航科技股份有限公司 | Battery, battery pack and preparation method of battery |
| KR20220068646A (en) * | 2020-11-19 | 2022-05-26 | 주식회사 성우하이텍 | Manufacturing method of battery module case for electric vehicle |
| CN114597468A (en) * | 2022-02-22 | 2022-06-07 | 上海兰钧新能源科技有限公司 | Battery manufacturing method and battery |
-
2022
- 2022-07-20 CN CN202210858432.0A patent/CN115084732A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1097850A (en) * | 1996-09-20 | 1998-04-14 | Mitsubishi Plastics Ind Ltd | Outer packaging sheet for parallelepiped battery |
| JP2001035451A (en) * | 1999-06-25 | 2001-02-09 | Mitsubishi Chemicals Corp | Battery packaging material and packaging method for battery |
| JP2012230859A (en) * | 2011-04-27 | 2012-11-22 | Sanyo Electric Co Ltd | Battery housing case and battery housing body |
| CN205790141U (en) * | 2016-07-13 | 2016-12-07 | 宁德时代新能源科技股份有限公司 | Battery modules |
| CN209045658U (en) * | 2018-12-29 | 2019-06-28 | 宁德时代新能源科技股份有限公司 | Battery case and battery modules |
| KR20220068646A (en) * | 2020-11-19 | 2022-05-26 | 주식회사 성우하이텍 | Manufacturing method of battery module case for electric vehicle |
| CN114374030A (en) * | 2022-02-10 | 2022-04-19 | 中创新航科技股份有限公司 | Battery, battery pack and preparation method of battery |
| CN114597468A (en) * | 2022-02-22 | 2022-06-07 | 上海兰钧新能源科技有限公司 | Battery manufacturing method and battery |
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