CN211182258U - Novel lithium battery shell and shell cover applying same - Google Patents
Novel lithium battery shell and shell cover applying same Download PDFInfo
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- CN211182258U CN211182258U CN201921822567.1U CN201921822567U CN211182258U CN 211182258 U CN211182258 U CN 211182258U CN 201921822567 U CN201921822567 U CN 201921822567U CN 211182258 U CN211182258 U CN 211182258U
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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 discloses a novel lithium battery case and use cap of this shell relates to lithium cell apparatus technical field, and this shell comprises two at least parts, through hot melt adhesive sealing connection between each part of shell, also is connected through the hot melt adhesive between cap and the shell. The utility model discloses the security performance is good, long service life, and low cost has the advantage of hard casing and soft casing concurrently to can each other be positive negative pole or positive negative pole is directly formed to the cap between casing and the cap, simple structure just saves the cost greatly.
Description
Technical Field
The utility model relates to a lithium cell apparatus technical field especially relates to a novel lithium cell shell and use cap of this shell.
Background
The lithium battery has the advantages of high specific energy, long cycle life, no pollution to the environment and the like, and has gradually replaced batteries of lead acid and the like.
The structure of the lithium battery shell on the market at present consists of a shell and a battery unit in the shell. The lithium battery shell is divided into a soft shell and a hard shell, the two shells have respective advantages and disadvantages, the soft shell generally adopts a mode that a layer of aluminum plastic film shell is sleeved outside the lithium battery, and the aluminum plastic film shell can only blow and crack at most under the condition of potential safety hazard, so that the lithium battery shell has the advantages of good safety performance and explosion resistance, but has short service life, is easy to deform, is difficult to recover and easily causes environmental pollution; the hard shell is generally in a cylindrical or rectangular structure, the lithium battery is sealed in a metal or other hard shell, the lithium battery has the advantages of long service life and difficulty in damage, but the lithium battery has poor explosion-proof capability, and when the internal pressure of the lithium battery is too high, the pressure cannot be relieved in the sealed shell, so that the shell is extremely easy to break and explode, and the problems are to be improved.
In addition, the existing shell cover for the lithium battery shell is difficult to realize insulation between the shell cover and the shell, so that an anode and a cathode are required to be additionally arranged on the shell cover, and the structure is obviously higher in cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a long service life, low cost, the security performance is good, can be effectively fire-retardant explosion-proof novel lithium battery shell and use the cap of this shell, have the advantage of hard shell and soft shell concurrently to can each other be positive negative pole or the cap directly forms positive negative pole between casing and the cap, simple structure just saves the cost greatly.
The utility model adopts the technical proposal that: the utility model provides a novel lithium battery shell, includes the casing, is equipped with the cavity that can hold the lithium cell in the casing, and the cap installing port has been seted up to casing department, its characterized in that, the casing comprises two at least parts, through hot melt adhesive sealing connection between each part of casing.
Furthermore, the shell is divided into an upper shell and a lower shell, the upper shell and the lower shell are both cylindrical or cuboid structures, the top of the upper shell is provided with a shell cover mounting opening, the bottom of the upper shell is opened, and the top of the lower shell is opened; when the inner diameters of the upper shell and the lower shell are different, the upper shell is sleeved on the outer side or the inner side of the lower shell, and the shell walls of the upper shell and the lower shell are hermetically connected through hot melt adhesive; when the inner diameters of the upper shell and the lower shell are the same, the bottom surface of the upper shell is connected with the top surface of the lower shell in a sealing mode through hot melt adhesive.
Furthermore, the shell is divided into an upper shell and a lower shell, the upper shell and the lower shell are in cylindrical or cuboid structures with the same inner diameter, the top of the upper shell is provided with a shell cover mounting opening, the bottom of the upper shell is opened, and the top of the lower shell is opened; the lower part of the upper shell and the shell wall at the upper part of the lower shell are respectively provided with a circle of annular steps, the annular steps of the upper shell and the lower shell are mutually corresponding and are hermetically spliced through hot melt adhesive, the upper shell and the lower shell are combined to form a complete cylindrical or rectangular shell, and the inner cavities of the upper shell and the lower shell are combined to form a complete cylindrical or rectangular inner cavity.
Further, the shell is divided into an upper shell and a lower shell; the upper shell is of a cylindrical or cuboid structure, the top of the upper shell is provided with a shell cover mounting opening, the bottom of the upper shell is provided with a lower shell mounting opening, and a gap is reserved between the edge of the lower shell mounting opening and the outer edge of the shell; the lower shell is a circular plate or a square plate; the lower shell is connected to the bottom surface of the upper shell through hot melt adhesive.
Further, the hot melt adhesive is a modified PP adhesive.
Further, the shell is a steel or nickel-plated steel shell.
Furthermore, the upper shell is a steel or nickel-plated steel shell, and the lower shell is one of an aluminum plate, a nickel-plated steel plate and an aluminum steel plate.
Further, a gap is reserved between the edge of the shell cover mounting opening and the outer edge of the shell.
The shell cover applying the shell is characterized in that the shell cover is of a plate-shaped or cap-shaped structure, and the shell cover is connected with the shell body at a shell cover mounting opening through hot melt adhesive.
Further, the shell cover is made of one of aluminum, nickel-plated steel, aluminum steel and engineering plastic materials; when the shell cover is made of one of aluminum, nickel-plated steel and aluminum steel, the shell cover is composed of two parts, and the two parts of the shell cover are connected through hot melt adhesive; when the shell cover is made of engineering plastic materials, a metal sheet for conducting electricity is embedded on the shell cover.
Compared with the prior art, the utility model has the following obvious advantage: the welding seal of the hard shell of the traditional lithium battery is optimized to be hot melt adhesive filling heat seal, the service life of the hard shell is prolonged, the hard shell is not easy to damage, and the explosion-proof characteristic of the soft shell is maintained.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
Fig. 2 is a schematic structural view of embodiment 2.
Fig. 3 is a schematic structural view of embodiment 3.
Fig. 4 is a schematic structural view of embodiment 4.
FIG. 5 is a schematic structural view of example 5.
Fig. 6 is a schematic structural view of embodiment 6.
FIG. 7 is a schematic structural view of example 7.
FIG. 8 is a schematic structural view of example 8.
In the figure: casing 1, cap installing port 2, hot melt adhesive 3, go up casing 4, lower casing 5, lower casing installing port 6, annular step 7, cap 8, sheetmetal 9.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a novel lithium battery shell comprises a shell 1, wherein a cavity capable of accommodating a lithium battery is arranged in the shell 1, a shell mounting opening 2 is formed at one position of the shell 1, a space is reserved between the edge of the shell mounting opening 2 and the outer edge of the shell 1, a shell cover 8 is connected with the outer wall of the shell 1 at the position of the shell mounting opening 2 through a hot melt adhesive 3, and the shell cover 8 is of a plate-shaped structure; the shell 1 is divided into an upper shell 4 and a lower shell 5, the upper shell 5 and the lower shell 5 are both cylindrical or cuboid structures, the top of the upper shell 4 is provided with a shell mounting opening 2, the bottom of the upper shell 4 is open, and the top of the lower shell 5 is open; when the inner diameters of the upper shell and the lower shell are different, the upper shell 4 is sleeved on the outer side or the inner side of the lower shell 5, and the shell walls of the upper shell 4 and the lower shell 5 are hermetically connected through hot melt adhesives 3; when the inner diameters of the upper shell and the lower shell are the same, the bottom surface of the upper shell 4 is hermetically connected with the top surface of the lower shell 5 through the hot melt adhesive 3; the hot melt adhesive 3 is modified PP adhesive; the upper shell 4 is a steel or nickel-plated steel shell 1, the lower shell 5 is one of an aluminum plate, a nickel-plated steel plate and an aluminum-steel composite plate, and the shell cover 8 is one of aluminum, nickel-plated steel and aluminum-steel.
Example 2
As shown in fig. 2, a novel lithium battery shell comprises a shell 1, wherein a cavity capable of accommodating a lithium battery is arranged in the shell 1, a shell mounting opening 2 is formed at one position of the shell 1, a space is reserved between the edge of the shell mounting opening 2 and the outer edge of the shell 1, a shell cover 8 is connected with the outer wall of the shell 1 at the position of the shell mounting opening 2 through a hot melt adhesive 3, and the shell cover 8 is in a cap-shaped structure; the shell 1 is divided into an upper shell 4 and a lower shell 5, the upper shell 5 and the lower shell 5 are in cylindrical or cuboid structures with the same inner diameter, the top of the upper shell 4 is provided with a shell mounting opening 2, the bottom of the upper shell 4 is open, and the top of the lower shell 5 is open; the wall of the shell 1 at the lower part of the upper shell 4 and the upper part of the lower shell 5 is respectively provided with a circle of annular steps 7, the annular steps 7 of the upper shell 5 and the lower shell 5 are mutually corresponding and are hermetically spliced through a hot melt adhesive 3, the hot melt adhesive 3 is a modified PP adhesive, the upper shell 5 and the lower shell 5 are combined to form a complete cylindrical or rectangular shell 1, and the inner cavities of the upper shell 5 and the lower shell 5 are combined to form a complete cylindrical or rectangular inner cavity; wherein, the upper shell 4 is a steel or nickel-plated steel shell 1, the lower shell 5 is one of an aluminum plate, a nickel-plated steel plate and an aluminum steel composite plate, and the shell cover 8 is one of aluminum, nickel-plated steel and aluminum steel.
Example 3
As shown in fig. 3, a novel lithium battery shell comprises a shell 1, wherein a cavity capable of accommodating a lithium battery is arranged in the shell 1, a shell mounting opening 2 is formed at one position of the shell 1, a space is reserved between the edge of the shell mounting opening 2 and the outer edge of the shell 1, a shell cover 8 is connected with the outer wall of the shell 1 at the position of the shell mounting opening 2 through a hot melt adhesive 3, and the shell cover 8 is of a plate-shaped structure; the shell 1 is divided into an upper shell 4 and a lower shell 5; the upper shell 4 is of a cylindrical or cuboid structure, the top of the upper shell 4 is provided with a shell mounting opening 2, the bottom of the upper shell 4 is provided with a lower shell mounting opening 6, and a space is reserved between the edge of the lower shell mounting opening 6 and the outer edge of the shell 1; the lower shell 5 is a circular plate or a square plate; lower casing 5 is connected on the bottom surface of last casing 4 through hot melt adhesive 3, and hot melt adhesive 3 is modified PP and glues, goes up casing 4 and is steel or nickel-plated steel casing 1, and lower casing 5 is one of aluminum plate, nickel-plated steel sheet, aluminium steel composite sheet, and cap 8 is one of aluminium, nickel-plated steel, aluminium steel material.
In the above embodiments 1-3, when the internal pressure of the lithium battery is too high, the hot melt adhesive 3 is damaged, and the gas inside the casing 1 is exhausted from the gap between the upper and lower casings 5, thereby avoiding the occurrence of explosion phenomenon; because the shell cover 8 is insulated from the shell 1, a positive electrode and a negative electrode can be directly formed between the shell cover 8 and the shell 1, the shell cover 8 is not required to be provided with the positive electrode and the negative electrode, and the cost is reduced.
Example 4
Referring to the embodiment 1, as shown in fig. 4, the rest features are unchanged, the housing cover 8 is composed of two parts, the two parts of the housing cover 8 are connected through the hot melt adhesive 3, and the two parts of the housing cover 8 can directly form the positive electrode and the negative electrode due to the insulation between the two parts of the housing cover 8, so that the positive electrode and the negative electrode do not need to be arranged on the housing cover 8, and the cost is reduced.
Example 5
Referring to the embodiment 2, as shown in fig. 5, the rest features are unchanged, the housing cover 8 is composed of two parts, the two parts of the housing cover 8 are connected through the hot melt adhesive 3, and the two parts of the housing cover 8 can directly form the positive electrode and the negative electrode due to the insulation between the two parts of the housing cover 8, so that the positive electrode and the negative electrode do not need to be arranged on the housing cover 8, and the cost is reduced.
Example 6
Referring to embodiment 3, as shown in fig. 6, the remaining features are unchanged, the housing cover 8 is composed of two parts, the two parts of the housing cover 8 are connected by the hot melt adhesive 3, and the two parts of the housing cover 8 can directly form a positive electrode and a negative electrode due to the insulation between the two parts of the housing cover 8, so that the housing cover 8 is not required to be provided with the positive electrode and the negative electrode, and the cost is reduced.
Example 7
Referring to the embodiment 1-3, as shown in fig. 7, the case cover 8 is made of engineering plastic, the other characteristics are not changed, the metal sheet 9 for conducting electricity is embedded on the case cover 8, the metal sheet 9 is a single metal sheet, and the metal sheet 9 on the case cover 8 and the case 1 interact with each other to form the positive electrode and the negative electrode of the lithium battery.
Example 8
Referring to example 7, as shown in fig. 8, the remaining features are unchanged, the metal sheets 9 are two metal sheets, and the two metal sheets 9 on the case cover 8 can interact with the positive electrode and the negative electrode of the lithium battery.
Claims (10)
1. The utility model provides a novel lithium battery shell, includes the casing, is equipped with the cavity that can hold the lithium cell in the casing, and the cap installing port has been seted up to casing department, its characterized in that, the casing comprises two at least parts, through hot melt adhesive sealing connection between each part of casing.
2. The novel lithium battery shell according to claim 1, wherein the shell is divided into an upper shell and a lower shell, the upper shell and the lower shell are both cylindrical or cuboid-shaped, a shell cover mounting opening is formed in the top of the upper shell, the bottom of the upper shell is open, and the top of the lower shell is open; when the inner diameters of the upper shell and the lower shell are different, the upper shell is sleeved on the outer side or the inner side of the lower shell, and the shell walls of the upper shell and the lower shell are hermetically connected through hot melt adhesive; when the inner diameters of the upper shell and the lower shell are the same, the bottom surface of the upper shell is connected with the top surface of the lower shell in a sealing mode through hot melt adhesive.
3. The novel lithium battery shell according to claim 1, wherein the shell is divided into an upper shell and a lower shell, the upper shell and the lower shell are in cylindrical or rectangular structures with the same inner diameter, a shell cover mounting opening is formed in the top of the upper shell, the bottom of the upper shell is open, and the top of the lower shell is open; the lower part of the upper shell and the shell wall at the upper part of the lower shell are respectively provided with a circle of annular steps, the annular steps of the upper shell and the lower shell are mutually corresponding and are hermetically spliced through hot melt adhesive, the upper shell and the lower shell are combined to form a complete cylindrical or rectangular shell, and the inner cavities of the upper shell and the lower shell are combined to form a complete cylindrical or rectangular inner cavity.
4. The novel lithium battery shell as claimed in claim 1, wherein the shell is divided into two parts, an upper shell and a lower shell; the upper shell is of a cylindrical or cuboid structure, the top of the upper shell is provided with a shell cover mounting opening, the bottom of the upper shell is provided with a lower shell mounting opening, and a gap is reserved between the edge of the lower shell mounting opening and the outer edge of the shell; the lower shell is a circular plate or a square plate; the lower shell is connected to the bottom surface of the upper shell through hot melt adhesive.
5. The novel lithium battery shell as claimed in claim 1, wherein the hot melt adhesive is a modified PP adhesive.
6. The novel lithium battery shell as claimed in claim 1, wherein the shell is a steel or nickel plated steel shell.
7. The novel lithium battery shell as claimed in claim 4, wherein the upper shell is a steel or nickel-plated steel shell, and the lower shell is one of an aluminum plate, a nickel-plated steel plate and an aluminum steel plate.
8. The novel lithium battery shell as claimed in claim 1, wherein a space is left between the edge of the shell cover mounting opening and the outer edge of the shell body.
9. A shell cover is characterized in that the shell cover is of a plate-shaped or cap-shaped structure, and the shell cover is connected with a shell body at a shell cover mounting opening of a novel lithium battery shell as claimed in any one of claims 1 to 7 through hot melt adhesive.
10. A housing cover according to claim 9, wherein the housing cover is one of aluminium, nickel plated steel, aluminium steel, engineering plastics material; when the shell cover is made of one of aluminum, nickel-plated steel and aluminum steel, the shell cover is composed of two parts, and the two parts of the shell cover are connected through hot melt adhesive; when the shell cover is made of engineering plastic materials, a metal sheet for conducting electricity is embedded on the shell cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822567.1U CN211182258U (en) | 2019-10-28 | 2019-10-28 | Novel lithium battery shell and shell cover applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822567.1U CN211182258U (en) | 2019-10-28 | 2019-10-28 | Novel lithium battery shell and shell cover applying same |
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| Publication Number | Publication Date |
|---|---|
| CN211182258U true CN211182258U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921822567.1U Active CN211182258U (en) | 2019-10-28 | 2019-10-28 | Novel lithium battery shell and shell cover applying same |
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| CN (1) | CN211182258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880564A (en) * | 2019-10-28 | 2020-03-13 | 宜兴市惠华复合材料有限公司 | Novel lithium battery shell and shell cover applying same |
| WO2024082095A1 (en) * | 2022-10-17 | 2024-04-25 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electrical device |
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2019
- 2019-10-28 CN CN201921822567.1U patent/CN211182258U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880564A (en) * | 2019-10-28 | 2020-03-13 | 宜兴市惠华复合材料有限公司 | Novel lithium battery shell and shell cover applying same |
| WO2024082095A1 (en) * | 2022-10-17 | 2024-04-25 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electrical device |
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