CN210167462U - Button type lithium ion battery - Google Patents
Button type lithium ion battery Download PDFInfo
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- CN210167462U CN210167462U CN201920786231.8U CN201920786231U CN210167462U CN 210167462 U CN210167462 U CN 210167462U CN 201920786231 U CN201920786231 U CN 201920786231U CN 210167462 U CN210167462 U CN 210167462U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A button-type lithium ion battery comprising: the battery comprises a battery bottom cup, a sealing assembly, a battery top cover shell and an electric core assembly, wherein an accommodating cavity is formed in the battery bottom cup; the sealing assembly comprises a sealing ring, the battery top cover shell is arranged in the sealing ring, and the battery core assembly comprises a battery core and electrolyte. The utility model discloses a button type lithium ion battery is through setting up the bottom cup of battery, seal assembly, battery top cover shell and battery core subassembly, thereby adopt the bottom cup of battery and the sealed mode of sealing washer bordure to cylindrical battery top cover shell seal the operation, so, can get rid of the pit and the process of clapping the neck in traditional processing operation, and cylindrical battery top cover shell can improve holistic structural strength, only need when sealing the operation bottom cup of battery rim of a cup and sealing washer buckling deformation can, thereby guarantee that the inner space of battery top cover shell can not change, the space that makes inside electric core can not change from this, thereby make button battery's capacity higher.
Description
Technical Field
The utility model relates to a lithium ion battery makes the field, especially relates to a button type lithium ion battery.
Background
The button cell is a cavity structure formed by combining a metal bottom shell and a top shell. The bottom shell is typically connected to the positive electrode and the top shell is typically connected to the negative electrode. The bottom and top shells are separated by a plastic rubber ring (usually polypropylene). The rubber ring simultaneously plays the functions of sealing and insulation. When sealing, the edge of the bottom shell is pressed by mechanical force and is inverted inwards to be included with the top shell, thereby forming a closed shell.
Usually, the inside of the casing of the button cell is a cell in a sandwich structure composed of a single-layer positive plate, a single-layer separator paper and a single-layer negative plate, and the cell is horizontally arranged parallel to the upper and lower bottom surfaces of the casing. The capacity of the button cell prepared by the method is very limited. Traditional button cell structure, it need be through the car hole process before sealing up, and the part more than the car hole position is used for depositing the top cap rubber ring, has occupied the space of electric core, still remains the processing of borduring of clapping the neck after the battery seals, and at this moment, the difference in height after the processing of borduring of clapping the neck also can compress the space that holds electric core to cause the battery inner space to reduce. Therefore, how to design a button cell with a simpler and more compact structure and without reducing the internal space of the cell by compression during the cover sealing process is a problem to be solved by developers in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide a button type lithium ion battery that the structure is comparatively simple compact and the closing cap adds man-hour can not reduce battery inner space to the compression.
The purpose of the utility model is realized through the following technical scheme:
a button-type lithium ion battery comprising:
the battery bottom cup is internally provided with an accommodating cavity;
the sealing assembly comprises a sealing ring, the sealing ring is arranged in the accommodating cavity and is attached to the inner cavity wall of the accommodating cavity, a positioning convex ring is arranged at the bottom of the sealing ring, and the positioning convex ring is abutted to the bottom of the accommodating cavity;
the battery top cover shell is arranged in the sealing ring and is attached to the inner ring wall of the sealing ring, a clamping convex ring is arranged at the bottom of the battery top cover shell, a clamping groove is formed in the inner wall, close to the positioning convex ring, of the sealing ring, and the clamping convex ring is clamped in the clamping groove;
the opening end of the battery bottom cup is provided with a covered edge folding part, and when the covered edge folding part is folded, the covered edge folding part is used for enabling the opening of the sealing ring to be folded and pressed to be attached to the top of the battery top cover shell; and
the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the accommodating cavity, and the battery core is respectively electrically connected with the battery bottom cup and the battery top cover shell.
In one embodiment, the battery core assembly further includes a positive conductive sheet and a negative conductive sheet, the positive conductive sheet is connected to the positive electrode of the battery core, and the negative conductive sheet is connected to the negative electrode of the battery core.
In one embodiment, the positive conducting strip is connected with the battery top cover shell, and the negative conducting strip is connected with the battery bottom cup.
In one embodiment, the cell is a cylindrical cell.
In one embodiment, the cell is a laminated cell.
In one embodiment, the top of the battery top cover case is provided with a coupling boss.
In one embodiment, the top of the battery top cover shell is a planar structure.
In one embodiment, the sealing ring is a rubber ring.
In one embodiment, the battery top cover shell is a cylindrical structure.
In one embodiment, the battery bottom cup is a stainless steel bottom cup.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a button type lithium ion battery is through setting up battery end cup, seal assembly, battery top cover shell and battery core subassembly to adopt battery end cup and the sealed mode of sealing washer bordure to seal cylindrical battery top cover shell, so, can get rid of the pit and the process of clapping the neck in traditional processing operation, and cylindrical battery top cover shell can improve holistic structural strength, only need to buckle the rim of a cup of battery end cup and sealing washer when making the operation of sealing and warp can, thereby guarantee that the inner space of battery top cover shell can not change, make the space of inside electric core can not change from this, thereby make the capacity of button battery higher; meanwhile, the problem that the pole piece cannot be produced due to the fact that the width of the pole piece is too narrow due to insufficient internal space is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a button-type lithium ion battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a button-type lithium ion battery according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a battery top case according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a battery top cover case according to another embodiment of the present invention;
fig. 5 is a schematic structural view of a battery top cover case according to another embodiment of the present invention;
fig. 6 is a schematic structural view of a seal assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a sealing assembly according to another embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.
In one embodiment, a button-type lithium ion battery includes: the battery comprises a battery bottom cup, a sealing assembly, a battery top cover shell and a battery core assembly, wherein an accommodating cavity is formed in the battery bottom cup; the sealing assembly comprises a sealing ring, the sealing ring is arranged in the accommodating cavity and is attached to the inner cavity wall of the accommodating cavity, a positioning convex ring is arranged at the bottom of the sealing ring, and the positioning convex ring is abutted against the bottom of the accommodating cavity; the battery top cover shell is arranged in the sealing ring and is attached to the inner ring wall of the sealing ring, a clamping convex ring is arranged at the bottom of the battery top cover shell, a clamping groove is formed in the inner wall, close to the positioning convex ring, of the sealing ring, and the clamping convex ring is clamped in the clamping groove; the opening end of the battery bottom cup is provided with a covered edge folding part, and when the covered edge folding part is folded, the covered edge folding part is used for enabling the opening of the sealing ring to be folded and pressed to be attached to the top of the battery top cover shell; the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the accommodating cavity, and the battery core is respectively electrically connected with the battery bottom cup and the battery top cover shell. The utility model discloses a button type lithium ion battery is through setting up battery end cup, seal assembly, battery top cover shell and battery core subassembly to adopt battery end cup and the sealed mode of sealing washer bordure to seal cylindrical battery top cover shell, so, can get rid of the pit and the process of clapping the neck in traditional processing operation, and cylindrical battery top cover shell can improve holistic structural strength, only need to buckle the rim of a cup of battery end cup and sealing washer when making the operation of sealing and warp can, thereby guarantee that the inner space of battery top cover shell can not change, make the space of inside electric core can not change from this, thereby make the capacity of button battery higher; meanwhile, the problem that the pole piece cannot be produced due to the fact that the width of the pole piece is too narrow due to insufficient internal space is avoided.
In order to better explain the button-type lithium ion battery, the concept of the button-type lithium ion battery is better understood. Referring to fig. 1, a button-type lithium ion battery 10 includes: the battery comprises a battery bottom cup 100, a sealing assembly 200, a battery top cover shell 300 and a battery core assembly 400, wherein a containing cavity 110 is arranged in the battery bottom cup 100, the sealing assembly 200 comprises a sealing ring 210, the sealing ring 210 is arranged in the containing cavity 110, the sealing ring 210 is attached to the inner cavity wall of the containing cavity 110, a positioning convex ring 211 is arranged at the bottom of the sealing ring 210, and the positioning convex ring 211 is abutted to the bottom of the containing cavity 110. In this embodiment, the battery bottom cup 100 is a stainless steel bottom cup, the sealing ring is a rubber ring, and the sealing ring is a cylindrical structure.
It should be noted that the battery bottom cup 100 may be a metal bottom cup such as a stainless steel bottom cup, an electroplated steel shell, or an aluminum shell, or may be a bottom cup structure made of other metals, and the battery bottom cup 100 is a cylindrical structure with an open end, wherein a containing cavity 110 is arranged inside the battery bottom cup 100, and the containing cavity 110 is used for storing a battery core and filling electrolyte; the bottom of sealing washer 210 is provided with location bulge loop 211, and when sealing washer 210 placed the chamber 110 that holds of cup 100 at the bottom of the battery through artifical or the manipulator equipment that corresponds, sealing washer 210 supported with the bottom that holds chamber 110 through the location bulge loop 211 of bottom, so for in sealing washer 210 can be installed to cup 100 at the bottom of the battery fast and accurately, and can improve holistic installation accuracy, make overall structure intensity obtain strengthening. After the sealing washer installation is accomplished, through the elastic force of sealing washer for the sealing washer can closely laminate to the inner chamber wall that holds chamber 110, so, can make overall structure compacter, and can just can hold the space utilization of chamber 110 and obtain improving, thereby improve battery capacity.
Referring to fig. 1 again, the battery top cover case 300 is disposed in the sealing ring 210, the battery top cover case 300 is attached to the inner ring wall of the sealing ring 210, the bottom of the battery top cover case 300 is provided with a clamping convex ring 310, the inner wall of the sealing ring close to the positioning convex ring 211 is provided with a clamping groove 220, and the clamping convex ring 310 is clamped in the clamping groove 220. In the present embodiment, the battery top cap case 300 has a cylindrical structure.
As shown in fig. 3, for the structure diagram of battery top cover shell 300 of an embodiment, the material of battery top cover shell 300 can be nickel, aluminium, combined material or other metals, is located the outside protrusion of joint bulge loop 310 of battery top cover shell 300 bottom, when putting into sealing washer 210 in, joint bulge loop 310 is located on the location bulge loop 211 of sealing washer 210, can carry out the joint through joint bulge loop 310 and the joint recess 220 of sealing washer simultaneously and fix to can make overall structure compacter and firm, thereby improve the holistic stability of battery.
As shown in fig. 4, for the structure diagram of the battery top cover case 300a of another embodiment of the present invention, the material of the battery top cover case 300a may be nickel, aluminum, composite material or other metal, and is located the joint bulge loop 310a at the bottom of the battery top cover case 300a protrudes inwards, and when the sealing ring 210 is placed in, the joint bulge loop 310a is located on the positioning bulge loop 211 of the sealing ring 210, and the joint bulge loop 310a abuts against the positioning bulge loop 211, so that the overall structure can be improved during the sealing process, and the installation accuracy can be improved.
As shown in fig. 5, for the structure diagram of the battery top cover shell 300b of another embodiment of the present invention, the material of the battery top cover shell 300b may be nickel, aluminum, composite material or other metals, the inner and outer sidewalls of the top cover shell bottom 310b of the battery top cover shell 300b are flat structures, and have no protruding structure, so that the battery top cover shell 300b can be more easily inserted into the sealing ring 210, and the battery production and processing operations are more convenient.
As shown in fig. 6, for the structure diagram of the sealing ring 210 of an embodiment of the present invention, the bottom of the sealing ring 210 is provided with the positioning convex ring 211, when the sealing ring 210 is placed in the containing cavity 110 of the bottom cup 100 of the battery through manual work or corresponding mechanical equipment, the sealing ring 210 is supported with the bottom of the containing cavity 110 through the positioning convex ring 211 of the bottom, so that the sealing ring 210 can be rapidly and accurately installed in the bottom cup 100 of the battery, and the overall installation accuracy can be improved, and the overall structure strength is enhanced. The sealing washer is close to and has seted up joint recess 220 on the inner wall of location bulge loop 211, and sealing washer 210 in this embodiment is used for being provided with outside convex joint bulge loop 310 with battery top cap shell 300 bottom and carries out the joint cooperation, so, can carry out the joint through joint bulge loop 310 and the joint recess 220 of sealing washer and fix to can make overall structure compacter and firm, thereby improve the holistic stability of battery.
As shown in fig. 7, for the structure diagram of the sealing ring 210a of another embodiment of the present invention, the bottom of the sealing ring 210 is provided with a positioning convex ring 211a, when the sealing ring 210a is placed in the containing cavity 110 of the bottom cup 100 of the battery through manual work or corresponding mechanical equipment, the sealing ring 210a is supported with the bottom of the containing cavity 110 through the positioning convex ring 211a of the bottom, so that the sealing ring 210a can be quickly and accurately installed in the bottom cup 100 of the battery, and the overall installation accuracy can be improved, and the overall structure strength is enhanced. In this embodiment, the inner wall of the sealing ring 210a is of a flat structure without a clamping groove, and the structure is used for being installed and matched with a battery top cover shell which is provided with an inward convex clamping convex ring or a clamping-free convex ring at the bottom of the battery top cover shell, so that the production process of the sealing ring 210a can be simplified, and the production cost can be saved.
Further, a wrapping folding part 120 is arranged at the opening end of the battery bottom cup 100, and when the wrapping folding part 120 is folded, the opening of the sealing ring 210 is folded and pressed to the top of the battery top cover shell 300.
It should be noted that, the battery top cover case 300 is a cylindrical case structure, and compared with the sheet-type battery cover in the prior art, the battery top cover case 300 with the cylindrical case structure can improve the structural strength of the whole battery, so as to avoid the internal space of the battery bottom cup 100 from being compressed during the battery sealing process, thereby ensuring that the internal space and capacity of the battery are kept constant, and improving the production quality of the battery. When the battery top cover shell 300 is inserted into the accommodating cavity 110, the battery top cover shell 300 is abutted against the positioning convex ring 211 of the sealing ring 210 through the clamping convex ring 310, so that the mounting precision of the battery top cover shell 300 can be improved, the integral mounting and processing efficiency is improved, meanwhile, the battery top cover shell 300 is clamped and fixed with the clamping groove 220 of the sealing ring 210 through the clamping convex ring 310, the battery top cover shell 300 can be mounted and fixed in the accommodating cavity 110, and therefore, the strength of the integral structure can be improved, and internal elements are prevented from shaking or being damaged when the battery falls and collides; after the battery top cover shell 300 is installed and fixed, the sealing ring 210 can be extruded through installation acting force, so that the battery top cover shell 300 is tightly attached to the inner ring wall of the sealing ring 210, the inner space of the accommodating cavity 110 can be fully utilized, the inner space and the capacity of the battery are kept constant, and the production quality of the battery is improved. Accomplish the installation back of battery top cap shell 300, the portion of turning over 120 of borduring of the open end department of cup 100 seals the extrusion operation of borduring through mechanical pressure, make the portion of turning over 120 of borduring turn over to the direction of battery top cap shell 300, thereby make the opening part of sealing washer 210 turn over and press and paste to the top of battery top cap shell 300, so, the sealing washer 210 that is located battery top cap shell 300 top part can be laminated to battery top cap shell 300 department by compression seal, thereby play sealed effect, and can prevent that the inside electrolyte of battery from leaking, reach the duplicate protection effect from this. In this embodiment, the battery top cap case 300 may be made of a nickel aluminum composite material or other metal materials.
Referring to fig. 1 again, the battery core assembly 400 includes a battery core 410 and an electrolyte, the battery core 410 and the electrolyte are respectively disposed in the accommodating cavity 110, and the battery core 410 is electrically connected to the battery bottom cup 100 and the battery top cover case 300 respectively.
Further, the cell assembly 400 further includes a positive conductive plate 420 and a negative conductive plate 430, the positive conductive plate 420 is connected to the positive electrode of the cell, and the negative conductive plate 430 is connected to the negative electrode of the cell. The positive conductive plate 420 is further connected to the battery top cover case 300, and the negative conductive plate 430 is further connected to the battery bottom cup 100, so as to electrically connect the battery core to the battery bottom cup 100 and the battery top cover case 300.
It should be noted that the battery cell 410 and the electrolyte are respectively disposed in the accommodating cavity 110, the battery cell 410 is connected to the battery top cover shell 300 through the positive conducting strip 420, and the battery cell 410 is connected to the battery bottom cup 100 through the negative conducting strip 430, so as to electrically connect the battery cell to the battery bottom cup 100 and the battery top cover shell 300.
As shown in fig. 2, for the structure diagram of the button-type lithium ion battery 20 of another embodiment of the present invention, the electric core of the button-type lithium ion battery 20 is a cylindrical electric core 400a, specifically, the cylindrical electric core includes a positive plate, a diaphragm and a negative plate, the cylindrical electric core is wound into a cylindrical winding electric core by winding the positive plate, the diaphragm and the negative plate on the winding machine in sequence, wherein the diaphragm is arranged between the positive plate and the negative plate, and the outmost layer of the cylindrical winding electric core is the diaphragm.
In another embodiment, the battery cell is a laminated battery cell, and specifically, referring to fig. 1, in the laminated battery cell, the negative plate, the separator paper and the positive plate are sequentially stacked in a plurality of layers, the separator paper is placed between the positive plate and the negative plate, and the separator paper is placed on the top and bottom surfaces, so that the laminated battery cell is obtained.
In one embodiment, the top of the top cap case 300 is provided with a connection boss 320, so that the battery can be electrically connected to external components through the connection boss 320; if the top of the battery top cover shell is of a plane structure, the whole structure is more compact, and the strength of the whole structure is improved.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a button type lithium ion battery 10 is through setting up the bottom cup 100 of battery, seal assembly 200, battery top cap shell 300 and electric core subassembly 400, thereby adopt the bottom cup 100 of battery and the sealed mode of sealing washer 210 bordure to seal cylindrical battery top cap shell 300, so, can get rid of the car hole and the process of clapping the neck in traditional processing operation, and cylindrical battery top cap shell 300 can improve holistic structural strength, only need during the operation of sealing with the rim of a cup of battery bottom cup 100 and sealing washer 210 bending deformation can, thereby guarantee that the inner space of battery top cap shell 300 can not change, make the space of inside electric core can not change from this, thereby make the capacity of button battery higher; meanwhile, the problem that the pole piece cannot be produced due to the fact that the width of the pole piece is too narrow due to insufficient internal space is avoided.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A button-type lithium ion battery, comprising:
the battery bottom cup is internally provided with an accommodating cavity;
the sealing assembly comprises a sealing ring, the sealing ring is arranged in the accommodating cavity and is attached to the inner cavity wall of the accommodating cavity, a positioning convex ring is arranged at the bottom of the sealing ring, and the positioning convex ring is abutted to the bottom of the accommodating cavity;
the battery top cover shell is arranged in the sealing ring and is attached to the inner ring wall of the sealing ring, a clamping convex ring is arranged at the bottom of the battery top cover shell, a clamping groove is formed in the inner wall, close to the positioning convex ring, of the sealing ring, and the clamping convex ring is clamped in the clamping groove;
the opening end of the battery bottom cup is provided with a covered edge folding part, and when the covered edge folding part is folded, the covered edge folding part is used for enabling the opening of the sealing ring to be folded and pressed to be attached to the top of the battery top cover shell; and
the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the accommodating cavity, and the battery core is respectively electrically connected with the battery bottom cup and the battery top cover shell.
2. The button-type lithium ion battery of claim 1, wherein the battery core assembly further comprises a positive conducting strip and a negative conducting strip, the positive conducting strip is connected with the positive electrode of the battery core, and the negative conducting strip is connected with the negative electrode of the battery core.
3. The button-type lithium ion battery according to claim 2, wherein the positive conductive tab is connected to the battery top cap shell and the negative conductive tab is connected to the battery bottom cup.
4. The button-type lithium ion battery according to claim 1, wherein the cells are cylindrical cells.
5. The button-type lithium ion battery of claim 1, wherein the cell is a laminated cell.
6. The button-type lithium ion battery according to claim 1, wherein a connection boss is provided at the top of the battery top cover case.
7. The button-type lithium ion battery according to claim 1, wherein the top of the battery top cover case is a planar structure.
8. The button-type lithium ion battery according to claim 1, wherein the sealing ring is a rubber ring.
9. The button-type lithium ion battery according to claim 1, wherein the battery top cover case is of a cylindrical structure.
10. The button-type lithium ion battery according to claim 1, wherein the battery bottom cup is a stainless steel bottom cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786231.8U CN210167462U (en) | 2019-05-28 | 2019-05-28 | Button type lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786231.8U CN210167462U (en) | 2019-05-28 | 2019-05-28 | Button type lithium ion battery |
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| CN210167462U true CN210167462U (en) | 2020-03-20 |
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| CN201920786231.8U Active CN210167462U (en) | 2019-05-28 | 2019-05-28 | Button type lithium ion battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224172A (en) * | 2019-05-28 | 2019-09-10 | 深圳金山电池有限公司 | Coin shape lithium ion battery and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224172A (en) * | 2019-05-28 | 2019-09-10 | 深圳金山电池有限公司 | Coin shape lithium ion battery and preparation method thereof |
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