CN211088322U - Lithium battery structure - Google Patents
Lithium battery structure Download PDFInfo
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- CN211088322U CN211088322U CN201922497119.5U CN201922497119U CN211088322U CN 211088322 U CN211088322 U CN 211088322U CN 201922497119 U CN201922497119 U CN 201922497119U CN 211088322 U CN211088322 U CN 211088322U
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- battery
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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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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a lithium battery structure, including positive pole casing, negative pole casing and book core, positive pole casing and negative pole casing longitudinal symmetry set up, and positive pole casing bonds or hot pressing in order to form sealed cavity with the negative pole casing, and the cavity intussuseption is filled with electrolyte, roll up the core and set up in the cavity, roll up the one end of core and be connected with the anodal battery on the positive pole casing, roll up the other end of core and be connected with the battery negative pole on the negative pole casing. The advantages of the perfect combination of the soft package battery and the stainless steel/aluminum shell battery of the lithium battery manufactured by adopting the structure have higher safety (explosion prevention), the shapes of the anode shell and the cathode shell are changeable, any shape suitable for installation can be prefabricated according to the installation structure of the battery shell required to be installed, and in addition, the advantages of low production cost and convenience for subsequent series-parallel connection grouping are also realized.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a lithium cell field especially relates to a lithium cell structure.
[ background of the invention ]
The lithium battery technology is more and more widely applied in the energy field of 3C consumer electronics, power batteries, energy storage and the like, and can be divided into three types by taking a packaging shell as a standard, namely a stainless steel cylindrical battery, an aluminum or stainless steel shell square battery and a soft package battery, wherein the stainless steel cylindrical battery, the aluminum or stainless steel shell square battery are all made of metal materials, the shell is generally output by a battery with one polarity, the other opposite polarity needs to be led out independently, the later assembly is relatively simple, but the sealing mode is laser welding, and when the internal pressure of the battery is too high and cannot be discharged in time, the explosion is easy to occur; the external packing of laminate polymer battery is the plastic-aluminum membrane, forms through the encapsulation, and its advantage is that battery internal pressure reachs certain back, and the position of plastic-aluminum membrane encapsulation can be opened automatically, reaches release pressure, avoids the effect of explosion, but the plastic-aluminum membrane packing, the exterior structure is softer, needs extra enhancement extranal packing, and the positive negative pole of battery need draw forth utmost point ear from inside moreover, and the follow-up connection is in groups relatively troublesome.
[ Utility model ] content
The purpose of the utility model is to overcome above-mentioned problem, we provide a lithium battery structure, and this structure has combined laminate polymer battery and cylinder battery square battery's advantage, adopts this kind of lithium battery structure's battery, and it has higher safety shape (explosion-proof), product size diversified, the advantage of connecting in series and in parallel simple etc. in groups.
In order to achieve the above object, the utility model provides a lithium battery structure, including positive pole casing, negative pole casing and book core, positive pole casing and negative pole casing longitudinal symmetry set up, and positive pole casing bonds or hot pressing in order to form sealed cavity with the negative pole casing, and the cavity intussuseption is filled with electrolyte, roll up the core and set up in the cavity, roll up the one end of core and be connected with the anodal battery on the positive pole casing, roll up the other end of core and be connected with the battery negative pole on the negative pole casing.
In one or more embodiments, the positive casing and the negative casing are hot-pressed to form a sealed cavity, and the positive casing and the negative casing are made of one of CPP, PP, PET, PI, and PE materials.
In one or more embodiments, the positive casing and the negative casing are bonded to form a sealed cavity, and a bonding layer is disposed between connecting surfaces of the positive casing and the negative casing.
In one or more embodiments, the positive housing has a positive mounting surface and a first docking portion disposed around the positive mounting surface, and the negative housing has a negative mounting surface and a second docking portion disposed around the negative mounting surface.
In one or more embodiments, the positive electrode mounting surface and the negative electrode mounting surface are both annular mounting surfaces, and the battery positive electrode is embedded on the positive electrode mounting surface or arranged at the top or the bottom of the positive electrode mounting surface; the battery cathode is embedded on the cathode mounting surface or arranged at the top or the bottom of the cathode mounting surface.
In one or more embodiments, the battery positive electrode is hot pressed or adhered to the positive electrode mounting surface, and the battery negative electrode is hot pressed or adhered to the negative electrode mounting surface.
In one or more embodiments, the winding core includes a positive current collector connected to a positive electrode of the battery and a negative current collector connected to a negative electrode of the battery, the positive current collector is connected to a plurality of positive electrode plates, the negative current collector is connected to a plurality of negative electrode plates, and an insulating diaphragm is disposed between the positive electrode plates and the negative electrode plates.
In one or more embodiments, the positive current collector is welded or crimped to the positive electrode of the battery, and the negative current collector is welded or crimped to the negative electrode of the battery.
In one or more embodiments, the battery anode is made of aluminum or titanium alloy material, and the thickness of the battery anode is 0.01mm-3 mm; the negative electrode of the battery is made of copper or steel materials, and the thickness of the negative electrode of the battery is 0.01mm-3 mm.
In one or more embodiments, the positive electrode case and the negative electrode case have one of a rectangular shape, a circular shape, an oval shape, a fan shape, a diamond shape, and an irregular shape.
Compared with the background art, the utility model has the following technical effects: the advantages of the perfect combination of the soft package battery and the stainless steel/aluminum shell battery of the lithium battery manufactured by adopting the structure have higher safety (explosion prevention), the shapes of the anode shell and the cathode shell are changeable, any shape suitable for installation can be prefabricated according to the installation structure of the battery shell required to be installed, and in addition, the advantages of low production cost and convenience for subsequent series-parallel connection grouping are also realized.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a lithium battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a series battery pack of lithium batteries according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a battery positive electrode (negative electrode) disposed on the top of a positive electrode (negative electrode) mounting surface according to an embodiment of the present invention;
fig. 4 is a schematic structural view of the battery according to the embodiment of the present invention, in which the positive electrode (negative electrode) is disposed at the bottom of the positive electrode (negative electrode) mounting surface;
fig. 5 is a schematic structural view illustrating a positive electrode (negative electrode) of a battery according to an embodiment of the present invention being embedded on a positive electrode (negative electrode) mounting surface;
fig. 6 is a schematic structural diagram of the lithium battery of the embodiment of the present invention in different shapes.
[ detailed description ] embodiments
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
Referring to fig. 1-6, the present application provides a lithium battery structure, which includes an anode casing 1, a cathode casing 2 and a winding core, wherein the anode casing 1 and the cathode casing 2 are arranged in a vertically symmetrical manner, the anode casing 1 and the cathode casing 2 are bonded or hot-pressed to form a sealed cavity 3, the cavity 3 is filled with an electrolyte, the winding core is arranged in the cavity 3, one end of the winding core is connected with a battery anode 4 on the anode casing 1, and the other end of the winding core is connected with a battery cathode 5 on the cathode casing 2, the lithium battery adopting the structure has the advantages that because the anode casing 1 and the cathode casing 2 are connected in a hot-pressing or bonding manner, when the internal pressure of the battery is normal or within an acceptable range, the air tightness can be ensured, when the internal pressure is too high, the internal pressure can be released through the connection surface between the anode casing 1 and the cathode casing 2, so as to avoid explosion, has high safety.
The positive electrode shell 1 is provided with a positive electrode mounting surface 6 and a first butt joint part 7 arranged around the positive electrode mounting surface 6, the negative electrode shell 2 is provided with a negative electrode mounting surface 8 and a second butt joint part 9 arranged around the negative electrode mounting surface 8, and the first butt joint part 7 and the second butt joint part 9 can be connected and sealed in the hot pressing or bonding mode, so that the positive electrode shell 1 and the negative electrode shell 2 are conveniently connected.
Referring to fig. 3-5 specifically, the positive electrode mounting surface 6 and the negative electrode mounting surface 8 are both annular mounting surfaces, and the battery positive electrode 4 is embedded on the positive electrode mounting surface 6 or is arranged at the top or the bottom of the positive electrode mounting surface 6; the battery cathode 5 is embedded on the cathode mounting surface 8 or arranged at the top or the bottom of the cathode mounting surface 8, various mounting modes are provided for selection, and during production, selection can be made according to actual needs.
The battery anode 4 is hot-pressed or adhered to the anode mounting surface 6, the battery cathode 5 is hot-pressed or adhered to the cathode mounting surface 8, and when the internal pressure of the battery is overlarge, the internal pressure can be released from the space between the battery anode 4 (battery cathode 5) and the anode mounting surface 6 (cathode mounting surface 8), so that the safety of the battery is enhanced.
In this embodiment, the roll core includes the positive current collector 10 connected with the battery positive pole 4 and the negative current collector 11 connected with the battery negative pole 5, and the positive current collector 10 is connected with a plurality of positive pole pieces 12, and the negative current collector 11 is connected with a plurality of negative pole pieces 13, is provided with insulating diaphragm 14 between positive pole piece 12 and the negative pole piece 13. The positive current collector 10 is welded or pressed with the battery positive electrode 4, and the negative current collector 11 is welded or pressed with the battery negative electrode 5.
The battery anode 4 is made of aluminum or titanium alloy material, and the thickness of the battery anode 4 is 0.01mm-3 mm; the battery cathode 5 is made of copper or steel materials, the thickness of the battery cathode 5 is 0.01mm-3mm, the thicknesses of the battery anode 4 and the battery cathode 5 are determined according to the size of the battery, and the larger the battery is, the thicker the battery is.
The shape of the positive electrode shell 1 and the negative electrode shell 2 is one of rectangle, circle, ellipse, fan, diamond and irregular shape, so as to meet the installation requirement of any battery shell and improve the space utilization rate.
In addition to the above embodiments, the present invention can also have other embodiments, and the technical solutions formed by equivalent replacement or equivalent transformation are adopted and all fall within the protection scope of the present invention.
Claims (10)
1. A lithium battery structure characterized by: including anodal casing (1), negative pole casing (2) and roll up the core, anodal casing (1) sets up with negative pole casing (2) longitudinal symmetry, and anodal casing (1) bonds or hot pressing is in order to form sealed cavity (3) with negative pole casing (2), and cavity (3) intussuseption is filled with electrolyte, roll up the core and set up in cavity (3), roll up the one end of core and be connected with anodal (4) of the battery on anodal casing (1), the other end of rolling up the core is connected with battery negative pole (5) on negative pole casing (2).
2. A lithium battery cell construction in accordance with claim 1, wherein: the positive electrode shell (1) and the negative electrode shell (2) are hot-pressed to form a sealed cavity (3), and the positive electrode shell (1) and the negative electrode shell (2) are made of one of CPP, PP, PET, PI and PE materials.
3. A lithium battery cell construction in accordance with claim 1, wherein: the positive electrode shell (1) is bonded with the negative electrode shell (2) to form a sealed cavity (3), and a gluing bonding layer is arranged between the connecting surfaces of the positive electrode shell (1) and the negative electrode shell (2).
4. A lithium battery cell structure according to any one of claims 1-3, characterized in that: the cathode shell (1) is provided with a cathode mounting surface (6) and a first butt joint part (7) arranged around the cathode mounting surface (6), and the cathode shell (2) is provided with a cathode mounting surface (8) and a second butt joint part (9) arranged around the cathode mounting surface (8).
5. A lithium battery cell construction according to claim 4, characterized in that: the positive electrode mounting surface (6) and the negative electrode mounting surface (8) are both annular mounting surfaces, and the battery positive electrode (4) is embedded on the positive electrode mounting surface (6) or arranged at the top or the bottom of the positive electrode mounting surface (6); the battery cathode (5) is embedded on the cathode mounting surface (8) or arranged at the top or the bottom of the cathode mounting surface (8).
6. A lithium battery cell construction in accordance with claim 5, wherein: the battery anode (4) is hot-pressed or adhered to the anode mounting surface (6), and the battery cathode (5) is hot-pressed or adhered to the cathode mounting surface (8).
7. A lithium battery cell structure according to any one of claims 1-3, characterized in that: the winding core comprises a positive current collector (10) connected with a battery positive electrode (4) and a negative current collector (11) connected with a battery negative electrode (5), the positive current collector (10) is connected with a plurality of positive pole pieces (12), the negative current collector (11) is connected with a plurality of negative pole pieces (13), and an insulating diaphragm (14) is arranged between the positive pole pieces (12) and the negative pole pieces (13).
8. A lithium battery cell construction in accordance with claim 7, wherein: the positive current collector (10) is welded or pressed with the battery positive electrode (4), and the negative current collector (11) is welded or pressed with the battery negative electrode (5).
9. A lithium battery cell structure according to any one of claims 1-3, characterized in that: the battery anode (4) is made of aluminum or titanium alloy material, and the thickness of the battery anode (4) is 0.01mm-3 mm; the battery cathode (5) is made of copper or steel materials, and the thickness of the battery cathode (5) is 0.01mm-3 mm.
10. A lithium battery cell structure according to any one of claims 1-3, characterized in that: the shape of the positive electrode shell (1) and the negative electrode shell (2) is one of rectangle, circle, ellipse, fan, diamond and irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497119.5U CN211088322U (en) | 2019-12-31 | 2019-12-31 | Lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497119.5U CN211088322U (en) | 2019-12-31 | 2019-12-31 | Lithium battery structure |
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| Publication Number | Publication Date |
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| CN211088322U true CN211088322U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922497119.5U Active CN211088322U (en) | 2019-12-31 | 2019-12-31 | Lithium battery structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129368A (en) * | 2019-12-31 | 2020-05-08 | 佛山陀普电子科技有限公司 | Lithium battery structure |
| CN112259842A (en) * | 2020-10-30 | 2021-01-22 | 浙江锂盾新能源材料有限公司 | Hard-shell battery explosion-proof shell with pressure relief function and preparation method thereof |
| CN115799657A (en) * | 2022-12-28 | 2023-03-14 | 楚能新能源股份有限公司 | Cylindrical battery and manufacturing process thereof |
-
2019
- 2019-12-31 CN CN201922497119.5U patent/CN211088322U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129368A (en) * | 2019-12-31 | 2020-05-08 | 佛山陀普电子科技有限公司 | Lithium battery structure |
| CN112259842A (en) * | 2020-10-30 | 2021-01-22 | 浙江锂盾新能源材料有限公司 | Hard-shell battery explosion-proof shell with pressure relief function and preparation method thereof |
| CN115799657A (en) * | 2022-12-28 | 2023-03-14 | 楚能新能源股份有限公司 | Cylindrical battery and manufacturing process thereof |
| CN115799657B (en) * | 2022-12-28 | 2023-11-03 | 楚能新能源股份有限公司 | Cylindrical battery and manufacturing process thereof |
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Address after: No.301-4, block 2, phase I, tianfulai international industrial city, 39 Changbao West Road, Ronggui Rongli neighborhood committee, Shunde District, Foshan City, Guangdong Province, 528303 Patentee after: Foshan Tuopu Technology Co.,Ltd. Address before: No.301-4, block 2, phase I, tianfulai international industrial city, 39 Changbao West Road, Ronggui Rongli neighborhood committee, Shunde District, Foshan City, Guangdong Province, 528303 Patentee before: Foshan Tuopu Electronic Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220826 Address after: Room D039, Building 7, No. F-01-08(01), Start Zone, Guangdong-Guangxi Cooperation Special Experimental Zone, Wanxiu District, Wuzhou City, Guangxi Zhuang Autonomous Region, 543000 Patentee after: Guangxi Gutai Power Technology Co.,Ltd. Address before: No.301-4, block 2, phase I, tianfulai international industrial city, 39 Changbao West Road, Ronggui Rongli neighborhood committee, Shunde District, Foshan City, Guangdong Province, 528303 Patentee before: Foshan Tuopu Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230412 Address after: Room 301-4, Building 2, Phase 1, Tianfulai International Industrial City, No. 39 Changbao West Road, Ronggui Rongju Committee, Shunde District, Foshan City, Guangdong Province, 528305 Patentee after: Foshan Tuopu Technology Co.,Ltd. Address before: Room D039, Building 7, No. F-01-08(01), Start Zone, Guangdong-Guangxi Cooperation Special Experimental Zone, Wanxiu District, Wuzhou City, Guangxi Zhuang Autonomous Region, 543000 Patentee before: Guangxi Gutai Power Technology Co.,Ltd. |