CN113178649A - Solid button cell - Google Patents
Solid button cell Download PDFInfo
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- CN113178649A CN113178649A CN202110437254.XA CN202110437254A CN113178649A CN 113178649 A CN113178649 A CN 113178649A CN 202110437254 A CN202110437254 A CN 202110437254A CN 113178649 A CN113178649 A CN 113178649A
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- metal shell
- lower metal
- notch
- upper metal
- adhesive layer
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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 invention provides a solid-state button battery, which comprises an upper metal shell, a lower metal shell, an electric core, an insulating support and a packaging adhesive layer, wherein the upper metal shell is of a cylindrical structure with a first opening at one end, the lower metal shell is of a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, a containing cavity is formed between the upper metal shell and the lower metal shell, the electric core is arranged in the containing cavity, the positive electrode and the negative electrode of the electric core are respectively connected with the upper metal shell and the lower metal shell in a one-to-one correspondence manner, the insulating support is arranged between the first opening and the second opening, and the packaging adhesive layer is packaged and wrapped on the outer surfaces of the upper metal shell and the lower metal shell, so that the upper metal shell and the lower metal shell are fixedly connected.
Description
Technical Field
The invention relates to the field of batteries, in particular to a solid button battery.
Background
Button cells are a common power supply device in the market, and are widely applied to various electronic devices, small household appliances, toys and other products. Among them, in prior art, to button cell's encapsulation be through pressurizing the border of metal-back, the border of metal-back warp to form the parcel card solid to metal covering, and this kind of packaging structure suffers destruction, reliability difference because of reasons such as expend with heat and contract with cold or collision easily.
Therefore, it is desirable to provide a solid button cell to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a solid-state button battery, wherein an upper metal shell and a lower metal shell are insulated by adopting an insulating support, are preliminarily connected, and are packaged and fixed by arranging a packaging adhesive layer, so that the problem of poor packaging reliability of the button battery in the prior art is solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: a solid state button cell, comprising:
the upper metal shell is of a cylindrical structure with a first opening at one end;
the lower metal shell is of a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, and an accommodating cavity is formed between the upper metal shell and the lower metal shell;
the battery cell is arranged in the accommodating cavity, and the positive electrode and the negative electrode of the battery cell are respectively connected with the upper metal shell and the lower metal shell in a one-to-one correspondence manner;
an insulating bracket connected between the upper metal case and the lower metal case to isolate the upper metal case from the lower metal case; and
and the packaging adhesive layer is packaged and wrapped on the outer surfaces of the upper metal shell and the lower metal shell so as to fixedly connect the upper metal shell and the lower metal shell.
In the present invention, the insulating support is an annular isolation portion, and the isolation portion is located between the upper metal shell and the lower metal shell.
Further, the insulating support further comprises an extension part connected to the inner side of the isolation part, and the extension part covers the inner surfaces of the upper metal shell and the lower metal shell.
In the invention, the insulating support is an annular extension part, the extension part covers the inner surfaces of the upper metal shell and the lower metal shell, the extension part is respectively contacted with the inner top surface of the upper metal shell and the inner bottom surface of the lower metal shell, a spacing area is formed between the upper metal shell and the lower metal shell at a set distance, and the packaging glue layer fills the spacing area.
The packaging structure comprises a packaging adhesive layer and a partition part, wherein a first notch is formed in the peripheral side face of the partition part, and a first convex part connected with the first notch in a positioning mode is arranged on the inner side of the packaging adhesive layer.
In the invention, a second notch is arranged on the peripheral side surface of the upper metal shell and/or the lower metal shell, and a second convex part which is connected with the second notch in a positioning way is arranged on the inner side of the packaging adhesive layer.
The width of the second gap of the upper metal shell far away from one end of the lower metal shell is larger than the width of the second gap near one end of the lower metal shell, the width of the second gap of the lower metal shell far away from one end of the upper metal shell is larger than the width of the second gap near one end of the upper metal shell, and the second gap can be trapezoidal.
In the invention, a first notch is arranged on the peripheral side surface of the isolation part, a second notch is arranged on the peripheral side surface of the upper metal shell and/or the lower metal shell, the first notch is communicated with the second notch, and a convex part which is connected with the first notch and the second notch in a positioning way is arranged on the inner side of the packaging adhesive layer.
In the invention, an upper notch groove is formed in the periphery of one end, away from the lower metal shell, of the upper metal shell, a lower notch groove is formed in the periphery of one end, away from the upper metal shell, of the lower metal shell, and the upper notch groove and the lower notch groove are filled with the packaging adhesive layer.
In the invention, at least three upper support holes and at least three lower support holes are distributed on the periphery of the packaging adhesive layer, the three upper support holes are opposite to the upper metal shell, the three lower support holes are opposite to the lower metal shell, the three upper support holes are positioned on different sides of the packaging adhesive layer, and the three lower support holes are positioned on different sides of the packaging adhesive layer.
In the invention, the packaging adhesive layer is manufactured in a low-pressure injection molding mode.
In the invention, the insulating bracket is made of hard insulating material.
In the invention, the positive electrode of the battery cell is contacted with the lower metal shell through a positive electrode tab, and the negative electrode of the battery cell is contacted with the upper metal shell through a negative electrode tab.
In the invention, the upper surface of the upper metal shell or the lower surface of the lower metal shell is provided with a sinking groove, an explosion-proof through hole is arranged in the sinking groove, an explosion-proof sheet is arranged in the sinking groove, the explosion-proof sheet seals the explosion-proof through hole, and the surface of the explosion-proof sheet is provided with a crack line.
The crack lines are of an annular structure and are arranged around the explosion-proof through holes in a surrounding mode.
The crack lines comprise two crossed straight crack lines, and the intersection point of the two crack lines is located in the area opposite to the explosion-proof through hole.
The fracture line is U-shaped, and the two ends are respectively provided with a cut end and a closed end.
In the present invention, the upper metal case and the lower metal case have the same structure.
Compared with the prior art, the invention has the beneficial effects that: according to the solid-state button battery, the upper metal shell and the lower metal shell are insulated by the insulating support, primary connection is formed at the same time, and then the upper metal shell and the lower metal shell are packaged and fixed by arranging the packaging adhesive layer, so that the packaging is simple, the cost is low, the packaging structure is very compact, the packaging effect is good, and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.
Fig. 1 is a schematic cross-sectional structure diagram of a solid-state button cell according to the present invention.
Fig. 2 is an exploded schematic view of the solid button cell of the present invention.
Fig. 3 is a schematic structural view of the solid-state button battery according to the present invention when the encapsulation adhesive layer is detached.
Fig. 4 is a schematic view of another embodiment of a second notch of the solid-state button battery according to the present invention.
Fig. 5 is a schematic structural view of an explosion-proof sheet arranged on an upper metal shell of the solid-state button battery of the present invention.
Fig. 6 shows a second embodiment of the rupture disk.
Fig. 7 shows a third embodiment of the rupture disk.
Fig. 8 is a sectional structural view of the annular insulating support of the solid-state button battery of the present invention.
Fig. 9 is a sectional structural view of an annular extension part of an insulating support of the solid-state button battery of the invention.
The reference numbers are named as follows:
an upper metal shell 11; a second notch 111; an upper notch 112; an explosion-proof through hole 113; a lower metal shell 12; a second notch 121; a lower open groove 122; a battery cell 13; an insulating support 14; the partition 141; an extension 142; a first notch 143; a packaging adhesive layer 15; a convex portion 151; an upper support aperture 152; the lower support holes 153; a positive electrode tab 16; a negative electrode tab 17 and an explosion-proof sheet 18; a fracture line 181; a spacer 19.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, the edge of the metal shell is pressurized to package the button cell, the edge of the metal shell deforms to wrap and clamp the metal cover plate, the packaging structure is easily damaged due to expansion with heat and contraction with cold or collision, and the reliability is poor.
The following is a preferred embodiment of the solid button cell provided by the present invention to solve the above technical problems.
Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic cross-sectional structure diagram of a solid-state button battery of the present invention, fig. 2 is a schematic explosion structure diagram of the solid-state button battery of the present invention, and fig. 3 is a schematic structural diagram of the solid-state button battery of the present invention when an encapsulation adhesive layer is detached.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The invention provides a solid button cell, which comprises the following preferred embodiments: a solid button battery comprises an upper metal shell 11, a lower metal shell 12, a battery cell 13, an insulating support 14 and a packaging adhesive layer 15.
The upper metal shell 11 has a cylindrical structure with a first opening at one end.
The lower metal shell 12 is a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, and an accommodating cavity is formed between the upper metal shell 11 and the lower metal shell 12.
The battery cell 13 is disposed in the accommodating cavity, and the positive electrode and the negative electrode of the battery cell 13 are respectively connected to the upper metal shell 11 and the lower metal shell 12 in a one-to-one correspondence manner, where the battery cell 13 may be a laminated battery cell, a wound battery cell, or a lap wound battery cell in the prior art.
The insulating support 14 is disposed between the first opening and the second opening, and insulates and separates the upper metal case 11 and the lower metal case 12.
The packaging glue layer 15 is packaged and wrapped on the outer surfaces of the upper metal shell 11 and the lower metal shell 12, so that the upper metal shell 11 and the lower metal shell 12 are fixedly connected, the packaging is simple and low in cost, the packaging structure is very tight, the packaging effect is good, and the reliability is high.
Referring to fig. 8, the insulating support 14 in the present embodiment may be an annular isolation portion 141, and the isolation portion 141 is located between the upper metal shell 11 and the lower metal shell 12.
Further, referring to fig. 2, the insulating bracket 14 may further include an extension portion 142, the extension portion 142 is connected to the inner side of the isolation portion 141, and the extension portion 142 covers the inner surfaces of the upper metal shell 11 and the lower metal shell 12.
In addition, referring to fig. 9, the insulating support 14 may also be an annular extension portion 142, the extension portion 142 covers the inner surfaces of the upper metal shell 11 and the lower metal shell 12, and the extension portion 142 is in contact with the inner top surface of the upper metal shell 11 and the inner bottom surface of the lower metal shell 12 (both the inner top surface and the inner bottom surface refer to the orientation in the drawing), respectively, a spacing region 19 is formed between the upper metal shell 11 and the lower metal shell 12 at a set distance, and the spacing region 19 is filled with the encapsulating adhesive layer 15, so that the connection structure is compact and stable, the encapsulation effect is good, and the reliability is high.
Preferably, the upper metal shell 11 and the lower metal shell 12 form an interference fit with a set force with the extension portion 142, so that before the encapsulation adhesive layer 15 encapsulates the upper metal shell 11 and the lower metal shell 12, a preliminary fixed connection can be formed among the upper metal shell 11, the lower metal shell 12 and the insulating support 14, and the subsequent injection molding at the periphery of the upper metal shell 11 and the lower metal shell 12 to form the encapsulation adhesive layer 15 is facilitated.
Preferably, the extension 142 extends to contact the upper top surface in the upper metal shell 11 and to contact the lower bottom surface in the lower metal shell 12, insulating the cell 13 from the upper metal shell 11 and from the lower metal shell 12, as viewed in the orientation of fig. 2.
The isolation portion 141 of the present invention may be a complete ring structure, or a first notch 143 as shown in fig. 2 may be provided on the isolation portion 141.
The peripheral side surface of the isolation portion 141 is provided with a first notch 143, the inner side of the package glue layer 15 is provided with a first convex portion connected with the first notch 143 in a positioning manner, the first convex portion can refer to the convex portion 151 in fig. 2, and the connection between the package glue layer 15 and the insulating support 14 is more fastened through the cooperation of the first notch 143 and the first convex portion.
In the present invention, a second notch may be further disposed on the outer peripheral side surface of the upper metal shell 11 and/or the lower metal shell 12, the second notch is, for example, the second notch 111 on the upper metal shell 11 and the second notch 121 on the lower metal shell 12, and a second convex portion connected to the second notch is disposed inside the encapsulating adhesive layer 15, and the second convex portion may refer to the convex portion 151 in fig. 2.
Referring to fig. 4, the width of the second gap 111 of the upper metal shell 11 away from the end of the lower metal shell 12 may be greater than the width of the end close to the lower metal shell 12, and the width of the second gap 121 of the lower metal shell 12 away from the end of the upper metal shell 11 is greater than the width of the end close to the upper metal shell 11, for example, the second gap 111 and the second gap 121 may be configured as a trapezoid structure as shown in fig. 4, so that after the encapsulation adhesive layer 15 is filled in the second gap, the connection between the upper metal shell 11 and the lower metal shell 12 is more secure.
The first notch 143 of the isolation portion 141 and the second notches of the upper metal shell 11 and the lower metal shell 12 may be independent of each other or may be communicated with each other.
Referring to fig. 3, in the present embodiment, the first notch 143 and the second notch are communicated with each other, and the inner side of the packaging adhesive layer 15 is provided with a protrusion 151 connected to the first notch 143 and the second notch 111 in a positioning manner, so that the connection between the packaging adhesive layer 15 and the insulating support 14, the upper metal shell 11 and the lower metal shell 12 is more secure, the packaging effect is good, and the reliability is strong.
In the present invention, an upper notch 112 is disposed on the periphery of one end of the upper metal shell 11 away from the lower metal shell 12, a lower notch 122 is disposed on the periphery of one end of the lower metal shell 12 away from the upper metal shell 11, and the upper notch 112 and the lower notch 122 are filled with the packaging adhesive layer 15, so that the packaging adhesive layer 15 can form a tight package on the upper metal shell 11 and the lower metal shell 12.
In this embodiment, the upper metal shell 11 and the lower metal shell 12 have the same structure, and can be used interchangeably, so that the manufacturing cost is lower.
In this embodiment, the upper metal shell 11 and the lower metal shell 12 both protrude from the encapsulation adhesive layer by 0.3-0.8mm, so that the upper metal shell 11 and the lower metal shell 12 can be electrically connected with corresponding devices.
In the present invention, at least three upper supporting points are distributed on the periphery of the upper metal shell 11, at least three lower supporting points are distributed on the periphery of the lower metal shell 12, the three upper supporting points are located on different sides of the upper metal shell 11 and are distributed in a triangular manner, so that the upper metal shell 11 is stably fixed by the supporting parts, the three lower supporting points are located on different sides of the lower metal shell 12 and are distributed in a triangular manner, so that the lower metal shell 12 is stably fixed by the supporting parts, the supporting parts are in contact with the upper supporting points and the lower supporting points, the supporting parts are used as supports when the encapsulating adhesive layer 15 is injection-molded, the supporting parts are removed after injection molding, and upper supporting holes 152 and lower supporting holes 153 are formed on the encapsulating adhesive layer 15, so that the positions of the upper supporting points can refer to the supporting holes 152 on the encapsulating adhesive layer 15, and the positions of the lower supporting points can refer to the lower supporting holes 153 on the encapsulating adhesive layer 15.
The packaging adhesive layer 15 in the embodiment is manufactured in a low-pressure injection molding mode, the injection molding pressure is low, the upper metal shell 11 and the lower metal shell 12 are not prone to damage, the process cycle is short, the yield is high, and the packaging effect is good.
The insulating support 14 in this embodiment is made of a hard insulating material, such as hard plastic.
In the solid button battery, the positive electrode of the battery cell 13 can be welded with the lower metal shell 12 through the positive electrode tab 16, or can form non-fixed extrusion contact with the lower metal shell 12, and the negative electrode of the battery cell 13 can be welded with the upper metal shell 11 through the negative electrode tab 17, or can form non-fixed extrusion contact with the upper metal shell 11, so that the solid button battery has the advantages of good electrical connection effect, simple packaging process and high packaging efficiency.
The positive electrode tab 16 includes a positive electrode tab for contacting with the lower metal shell 12, and the negative electrode tab 17 includes a negative electrode tab for contacting with the upper metal shell 11, if the battery cell 13 is a laminated battery cell, both the positive electrode tab and the negative electrode tab are parallel to an electrode tab of the battery cell 13 (as shown in fig. 1, the battery cell 13 in this embodiment is a laminated battery cell), and if the battery cell 13 is a wound battery cell, both the positive electrode tab and the negative electrode tab are perpendicular to the electrode tab of the battery cell 13.
Referring to fig. 5, in the present invention, a sinking groove is formed on the upper surface of the upper metal case 11 or the lower surface of the lower metal case 12, an explosion-proof through hole 113 is formed in the sinking groove, an explosion-proof plate 18 is formed in the sinking groove, the explosion-proof plate 18 can be fixed in the sinking groove by a hot pressing method, the explosion-proof plate 18 closes the explosion-proof through hole 113, a crack line 181 is formed on the surface of the explosion-proof plate 18, when the battery generates heat, high-pressure gas is generated inside the battery, and the high-pressure gas can burst the explosion-proof plate 18 along the crack line 181, so that the high-pressure gas can be released through the explosion-proof through hole 113 to prevent the battery from catching fire or exploding.
The fracture line 181 in this embodiment includes two straight fracture lines intersecting in a cross manner, and the intersection of the two fracture lines is located in an area opposite to the explosion-proof through hole 113.
Referring to fig. 6, the fracture line may be an annular structure, and in fig. 6, the fracture line is an annular structure having a fracture, but the fracture line may also be a closed annular structure, and the fracture line is disposed around the explosion-proof through hole 16.
Referring to fig. 7, the crack line may also be U-shaped, and the upper and lower ends are respectively a fracture end and a closed end, so that the explosion-proof piece is not easy to splash after the high-pressure gas breaks the explosion-proof piece 18.
This solid-state button cell of preferred embodiment's last metal-back and adopt insulating support insulating down between the metal-back, form the initial joint simultaneously, then encapsulate fixedly through setting up the encapsulation glue film again, encapsulate simple with low costs, packaging structure is very inseparable, and it is effectual to encapsulate, the good reliability.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A solid state button cell, comprising:
the upper metal shell is of a cylindrical structure with a first opening at one end;
the lower metal shell is of a cylindrical structure with a second opening at one end, the first opening is in butt joint with the second opening, and an accommodating cavity is formed between the upper metal shell and the lower metal shell;
the battery cell is arranged in the accommodating cavity, and the positive electrode and the negative electrode of the battery cell are respectively connected with the upper metal shell and the lower metal shell in a one-to-one correspondence manner;
an insulating bracket connected between the upper metal case and the lower metal case to isolate the upper metal case from the lower metal case; and
and the packaging adhesive layer is packaged and wrapped on the outer surfaces of the upper metal shell and the lower metal shell so as to fixedly connect the upper metal shell and the lower metal shell.
2. Solid state button cell according to claim 1, characterized in that the insulating support is an annular spacer, which is located between the upper metal casing and the lower metal casing.
3. The solid state button cell according to claim 2, wherein the insulating support further comprises an extension connected inside the spacer, the extension covering the inner surfaces of the upper and lower metal cases.
4. The solid state button cell according to claim 1, wherein the insulating support is an annular extension portion covering the inner surfaces of the upper and lower metal cases, and the extension portions are in contact with the inner top surfaces of the upper and lower metal cases, respectively, and form a spacer at a predetermined distance therebetween, and the encapsulant fills the spacer.
5. The solid-state button battery according to claim 2, wherein a first notch is formed on the outer peripheral side of the isolation portion, and a first protrusion connected with the first notch is formed on the inner side of the packaging adhesive layer.
6. The solid-state button battery according to claim 1 or 5, wherein a second notch is provided on the outer peripheral side of the upper metal shell and/or the lower metal shell, and a second protrusion connected with the second notch is provided on the inner side of the encapsulating adhesive layer.
7. The solid state button cell according to claim 6, wherein the width of the second indentation of the upper metal shell at the end away from the lower metal shell is greater than the width at the end near the lower metal shell, and the width of the second indentation of the lower metal shell at the end away from the upper metal shell is greater than the width at the end near the upper metal shell.
8. The solid button cell according to claim 2, wherein a first notch is formed in a peripheral side surface of the isolation portion, a second notch is formed in a peripheral side surface of the upper metal shell and/or the lower metal shell, the first notch and the second notch are communicated, and a protrusion is formed inside the encapsulating adhesive layer and is connected with the first notch and the second notch in a positioning manner.
9. The solid-state button battery according to claim 1, wherein an upper notch is formed in the periphery of one end of the upper metal shell, which is far away from the lower metal shell, a lower notch is formed in the periphery of one end of the lower metal shell, which is far away from the upper metal shell, and the encapsulation adhesive layer fills the upper notch and the lower notch.
10. The solid-state button battery according to claim 1, wherein at least three upper support holes and at least three lower support holes are distributed around the encapsulation adhesive layer, the three upper support holes are located opposite to the upper metal shell, the three lower support holes are located opposite to the lower metal shell, the three upper support holes are located on different sides of the encapsulation adhesive layer, and the three lower support holes are located on different sides of the encapsulation adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110437254.XA CN113178649B (en) | 2021-04-22 | 2021-04-22 | Solid button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110437254.XA CN113178649B (en) | 2021-04-22 | 2021-04-22 | Solid button cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113178649A true CN113178649A (en) | 2021-07-27 |
| CN113178649B CN113178649B (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110437254.XA Active CN113178649B (en) | 2021-04-22 | 2021-04-22 | Solid button cell |
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| Country | Link |
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| CN (1) | CN113178649B (en) |
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| US4640874A (en) * | 1985-07-29 | 1987-02-03 | Duracell Inc. | Metal/air cell |
| US20070128495A1 (en) * | 2005-12-05 | 2007-06-07 | Bobowick Derek R | Zinc/air cell |
| CN202259546U (en) * | 2011-07-18 | 2012-05-30 | 宜昌力佳科技有限公司 | Button-type lithium battery with insert-type supporting ring structure |
| US20150002990A1 (en) * | 2013-06-28 | 2015-01-01 | Feng Chia University | Packaging structures of an energy storage device |
| CN211045533U (en) * | 2019-12-17 | 2020-07-17 | 曙鹏科技（深圳）有限公司 | Button soft package lithium battery |
| CN211629137U (en) * | 2020-01-21 | 2020-10-02 | 珠海微矩实业有限公司 | Button cell |
| CN112201881A (en) * | 2020-11-02 | 2021-01-08 | 深圳聚锂能源有限公司 | Button cell shell and button cell |
| CN112382825A (en) * | 2020-11-11 | 2021-02-19 | 路华置富电子(深圳)有限公司 | Button cell with explosion-proof structure |
| CN212848643U (en) * | 2020-06-18 | 2021-03-30 | 曙鹏科技（深圳）有限公司 | Button cell |
| CN214411337U (en) * | 2021-04-22 | 2021-10-15 | 路华置富电子(深圳)有限公司 | Solid button cell |
-
2021
- 2021-04-22 CN CN202110437254.XA patent/CN113178649B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640874A (en) * | 1985-07-29 | 1987-02-03 | Duracell Inc. | Metal/air cell |
| US20070128495A1 (en) * | 2005-12-05 | 2007-06-07 | Bobowick Derek R | Zinc/air cell |
| CN202259546U (en) * | 2011-07-18 | 2012-05-30 | 宜昌力佳科技有限公司 | Button-type lithium battery with insert-type supporting ring structure |
| US20150002990A1 (en) * | 2013-06-28 | 2015-01-01 | Feng Chia University | Packaging structures of an energy storage device |
| CN211045533U (en) * | 2019-12-17 | 2020-07-17 | 曙鹏科技（深圳）有限公司 | Button soft package lithium battery |
| CN211629137U (en) * | 2020-01-21 | 2020-10-02 | 珠海微矩实业有限公司 | Button cell |
| CN212848643U (en) * | 2020-06-18 | 2021-03-30 | 曙鹏科技（深圳）有限公司 | Button cell |
| CN112201881A (en) * | 2020-11-02 | 2021-01-08 | 深圳聚锂能源有限公司 | Button cell shell and button cell |
| CN112382825A (en) * | 2020-11-11 | 2021-02-19 | 路华置富电子(深圳)有限公司 | Button cell with explosion-proof structure |
| CN214411337U (en) * | 2021-04-22 | 2021-10-15 | 路华置富电子(深圳)有限公司 | Solid button cell |
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| CN113178649B (en) | 2023-01-24 |
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