CN211980816U - Battery cell structure and battery - Google Patents
Battery cell structure and battery Download PDFInfo
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- CN211980816U CN211980816U CN202021003630.1U CN202021003630U CN211980816U CN 211980816 U CN211980816 U CN 211980816U CN 202021003630 U CN202021003630 U CN 202021003630U CN 211980816 U CN211980816 U CN 211980816U
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- 239000011888 foil Substances 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000004804 winding Methods 0.000 description 9
- 239000007772 electrode material Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
The utility model provides an electricity core structure and battery, this electricity core structure includes: the electrode comprises a first pole piece, a second pole piece, an insulating diaphragm, a first electrode and a second electrode; the first electrode and the second electrode are oppositely embedded to form a first cylinder, the insulating diaphragm is arranged between the first electrode and the second electrode, the first pole piece, the insulating diaphragm and the second pole piece are wound by taking the first cylinder as an axis, and the first cylinder is positioned at the axis of the battery cell structure. The embodiment of the utility model provides a can improve the energy density of electric core structure.
Description
Technical Field
The utility model relates to a battery technology field, in particular to electricity core structure and battery.
Background
With the development and progress of science and technology, the market demand for wearable electronic devices, such as wireless earphones, sports watches, and wristbands, is increasing, and lithium batteries are important components of wearable electronic devices. In addition to small-sized electric appliances for civil use, lithium batteries are also widely used in military applications. The cell structure of the current battery comprises: the positive plate, the diaphragm and the negative plate are formed by winding, the space in the battery cell is not fully utilized after winding and needle drawing, and the energy density of the battery cell is low.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an electricity core structure and battery to solve the lower problem of energy density of electricity core structure.
In order to achieve the above object, an embodiment of the present invention provides an electrical core structure, including: the electrode comprises a first pole piece, a second pole piece, an insulating diaphragm, a first electrode and a second electrode; the first electrode and the second electrode are oppositely embedded to form a first cylinder, the insulating diaphragm is arranged between the first electrode and the second electrode, the first pole piece, the insulating diaphragm and the second pole piece are wound by taking the first cylinder as an axis, and the first cylinder is positioned at the axis of the battery cell structure.
Optionally, the first electrode includes: the device comprises a first semi-cylinder and a first semi-disc, wherein the first semi-cylinder and the first semi-disc are vertically arranged, and the first semi-disc is arranged at one end of the first semi-cylinder; the second electrode includes: the second half cylinder and second semicircle dish, the second half cylinder with the second semicircle dish sets up perpendicularly, the second semicircle dish set up in the one end of second half cylinder.
Optionally, the first end of the first pole piece and the first end of the second pole piece are both arranged inside the first cylinder, the first end of the first pole piece is attached to the first semi-cylinder, the first end of the second pole piece is attached to the second semi-cylinder, and the insulating diaphragm is arranged between the first pole piece and the second pole piece.
Optionally, the first end of the first pole piece and the first end of the second pole piece are both arranged on the outer side of the first cylinder, the first end of the first pole piece is attached to the first semi-cylinder, and the first end of the second pole piece is attached to the second semi-cylinder.
Optionally, a first empty foil section is disposed at a first end of the first pole piece, and the first empty foil section is electrically connected to the first electrode; and a second empty foil section is arranged at the first end of the second pole piece and is electrically connected with the second electrode.
Optionally, a first insulating layer is arranged between the first semicircular disc and the second semicircular cylinder, and a second insulating layer is arranged between the second semicircular disc and the first semicircular cylinder.
Optionally, the first electrode and the second electrode each comprise a metal.
Optionally, the sum of the lengths of the first pole piece and the second pole piece is smaller than the length of the insulating diaphragm, and the outermost layer of the cell structure is the insulating diaphragm.
Optionally, in the height direction of the cell structure, the height of the first cylinder is greater than the height of the insulating diaphragm.
The embodiment of the utility model provides a still provide a battery, a serial communication port, the battery includes the embodiment of the utility model provides an electricity core structure.
One of the above technical solutions has the following advantages or beneficial effects:
in the embodiment of the utility model, the electricity core structure includes: the electrode comprises a first pole piece, a second pole piece, an insulating diaphragm, a first electrode and a second electrode; the first electrode and the second electrode are oppositely embedded to form a first cylinder, the insulating diaphragm is arranged between the first electrode and the second electrode, and the first cylinder is located in the axis of the battery cell structure due to the fact that the first pole piece, the insulating diaphragm and the second pole piece are wound by taking the first cylinder as an axis. Compare positive plate, diaphragm and negative pole piece among the prior art coiling shaping like this, the coiling is taken out needle back electric core inner space and is utilized inadequately, the embodiment of the utility model provides a can improve the energy density of electric core structure.
Drawings
Fig. 1 is a schematic cross-sectional view of a cell structure provided in an embodiment of the present invention;
fig. 2 is an exploded view of a cell structure according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of another electrical core structure provided in an embodiment of the present invention;
fig. 4 is an exploded view of another cell structure provided in an embodiment of the present invention;
fig. 5 is another schematic cross-sectional view of an electrical core structure provided in an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a section schematic diagram of a battery cell structure, as shown in fig. 1, including: a first pole piece 11, a second pole piece 12, an insulating diaphragm 13, a first electrode 14 and a second electrode 15; the first electrode 14 and the second electrode 15 are relatively embedded to form a first cylinder, the insulating diaphragm 13 is arranged between the first electrode 14 and the second electrode 15, the first pole piece 11, the insulating diaphragm 13 and the second pole piece 12 are wound around the first cylinder as an axis, and the first cylinder is located at the axis of the cell structure.
Fig. 2 is an exploded view of a cell structure provided in an embodiment of the present invention.
In the manufacturing process of the battery, the first pole piece 11 may serve as a positive pole piece in a cell structure, the second pole piece 12 may serve as a negative pole piece in the cell structure, the first electrode 14 may serve as a positive pole in the cell structure, the second electrode 15 may serve as a negative pole in the cell structure, and the insulating diaphragm 13 separates the positive pole and the negative pole in the battery to prevent internal short circuit of the battery.
The embodiment of the utility model provides an in, to including the kind of the battery of electricity core structure does not do the restriction, for example, the battery can be rechargeable battery, the battery also can be for primary battery, and is this the embodiment of the utility model provides a do not do the restriction. First pole piece 11 the insulating diaphragm 13 with second pole piece 12 with first cylinder is the axle winding and sets up, and the direction of winding can be clockwise, also can be anticlockwise, and is not limited to this the embodiment of the utility model provides a.
The first electrode 14 and the second electrode 15 are relatively embedded to form a first cylinder. For example, the first electrode 14 and the second electrode 15 may be both in a semi-cylindrical shape, and the first electrode 14 and the second electrode 15 may also be in other shapes, which is not limited in the embodiment of the present invention. The insulating diaphragm 13 is arranged between the first electrode 14 and the second electrode 15, and the insulating diaphragm 13 separates the first electrode 14 and the second electrode 15 to prevent the internal short circuit of the battery.
The embodiment of the utility model provides an in, first cylinder is located the axle center of electric core structure sets up in the axle center first electrode 14 with second electrode 15 just fills the hole that the electric core structure coiling was left, first electrode 14 with second electrode 15 does not occupy unnecessary space, and the space utilization is abundant reasonable, improves the energy density of electric core structure. The cell structure does not need to be drawn after winding, so that the process flow is simplified, and the production efficiency is improved.
As an alternative embodiment, as shown in fig. 1 or fig. 2, the first electrode 14 includes: the device comprises a first semi-cylinder and a first semi-disc, wherein the first semi-cylinder and the first semi-disc are vertically arranged, and the first semi-disc is arranged at one end of the first semi-cylinder; the second electrode 15 includes: the second half cylinder and second semicircle dish, the second half cylinder with the second semicircle dish sets up perpendicularly, the second semicircle dish set up in the one end of second half cylinder.
In this embodiment, the height of the first semi-cylinder is equal to the height of the second semi-cylinder. The inner diameter of the bottom surface of the first semi-cylinder is equal to the inner diameter of the bottom surface of the second semi-cylinder.
As an alternative embodiment, as shown in fig. 1 or fig. 2, the first end of the first pole piece 11 and the first end of the second pole piece 12 are both disposed inside the first cylinder, the first end of the first pole piece 11 is attached to the first semi-cylinder, the first end of the second pole piece 12 is attached to the second semi-cylinder, and the insulating diaphragm 13 is disposed between the first pole piece 11 and the second pole piece 12.
In this embodiment, the first end of the first pole piece 11 is arranged inside the first cylinder as the winding start end of the first pole piece 11. The first end of the second pole piece 12 is used as the winding start end of the second pole piece 12 and is arranged inside the first cylinder. The insulating diaphragm 13 is used to separate the first pole piece 11 from the second pole piece 12, and prevent internal short circuit of the battery. The first end of the first pole piece 11 is attached to the first semi-cylinder, the first end of the second pole piece 12 is attached to the second semi-cylinder, electrodes are attached to the pole pieces, electric conductivity is good, and connection is stable.
The first end of the first pole piece 11 and the first end of the second pole piece 12 may be disposed at the axis of the first cylinder.
As an alternative implementation manner, as shown in fig. 3 or fig. 4, the first end of the first pole piece 11 and the first end of the second pole piece 12 are both disposed outside the first cylinder, the first end of the first pole piece 11 is attached to the first half-cylinder, and the first end of the second pole piece 12 is attached to the second half-cylinder.
In this embodiment, the first end of the first pole piece 11 is arranged outside the first cylinder as the winding start end of the first pole piece 11. The first end of the second pole piece 12 is used as the winding start end of the second pole piece 12 and is arranged on the outer side of the first cylinder. The first end of the first pole piece 11 is attached to the first semi-cylinder, the first end of the second pole piece 12 is attached to the second semi-cylinder, electrodes are attached to the pole pieces, electric conductivity is good, and connection is stable.
As an alternative embodiment, as shown in fig. 4, a first empty foil segment 111 is disposed at a first end of the first pole piece 11, and the first empty foil segment 111 is electrically connected to the first electrode 14; a second empty foil segment 121 is disposed at a first end of the second pole piece 12, and the second empty foil segment 121 is electrically connected to the second electrode 15.
In this embodiment, the electrical connection between the first pole piece 11 and the first electrode 14 is not limited, and for example, the first empty foil segment 111 and the first electrode 14 may be connected by laser welding, riveting, resistance welding, or the like. Similarly, the second empty foil segment 121 and the second electrode 15 can be connected by laser welding, riveting or resistance welding.
The first electrode plate 11 includes a base foil and an electrode material, the electrode material is uniformly coated on the surface of the base foil, wherein the first empty foil section 111 is an area where the electrode material is not coated. Similarly, the second pole piece 12 includes a base foil and an electrode material uniformly coated on the surface of the base foil, wherein the second empty foil section 121 is an area not coated with the electrode material.
As an alternative embodiment, as shown in fig. 3 or fig. 4, a first insulating layer 16 is disposed between the first half-circular disc and the second half-cylinder, and a second insulating layer 17 is disposed between the second half-circular disc and the first half-cylinder.
The thickness of the first insulating layer 16 and the second insulating layer 17 is 0.02-0.2 mm. The first insulating layer 16 and the second insulating layer 17 are used for preventing positive and negative electrodes in the cell structure from contacting, so that the safety of the cell structure is improved.
As an alternative embodiment, the first electrode 14 and the second electrode 15 each comprise a metal.
Because including the metal in the electric core structure, the staff is removing electric core structure perhaps during the battery, can adopt magnet absorption back to remove, make things convenient for the staff to operate, improve production efficiency.
As an optional implementation manner, the sum of the lengths of the first pole piece 11 and the second pole piece 12 is less than the length of the insulating diaphragm 13, and the outermost layer of the cell structure is the insulating diaphragm 13.
As shown in fig. 5, the outermost layer of the cell structure is the insulating membrane 13, so as to improve the safety of the cell structure.
As an alternative embodiment, the height of the first cylinder in the height direction of the cell structure is greater than the height of the insulating membrane 13.
As shown in fig. 1, in the height direction of the cell structure, the first electrode 14 or the second electrode 15 is located outside the axial center position of the cell structure, the outer end face of the first electrode 14 exceeds the end face of the insulating diaphragm 13 by 0.1-1.0mm, the outer end face of the second electrode 15 exceeds the end face of the insulating diaphragm 13 by 0.1-1.0mm, as shown in fig. 1, that is, the thickness of the first half disc and the second half disc is 0.1-1.0 mm; the first electrode 14 and the second electrode 15 are conveniently connected with other substances in the battery, for example, the first electrode 14 and the second electrode 15 are conveniently connected with a battery shell.
In the embodiment of the utility model, the electricity core structure includes: the electrode comprises a first pole piece, a second pole piece, an insulating diaphragm, a first electrode and a second electrode; the first electrode and the second electrode are oppositely embedded to form a first cylinder, the insulating diaphragm is arranged between the first electrode and the second electrode, and the first cylinder is located in the axis of the battery cell structure due to the fact that the first pole piece, the insulating diaphragm and the second pole piece are wound by taking the first cylinder as an axis. Compare positive plate, diaphragm and negative pole piece among the prior art coiling shaping like this, the coiling is taken out needle back electric core inner space and is utilized inadequately, the embodiment of the utility model provides a can improve the energy density of electric core structure.
Additionally, the embodiment of the utility model provides an in, still provide a battery and include the embodiment of the utility model provides an arbitrary embodiment's electric core structure.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A cell structure, comprising: the electrode comprises a first pole piece, a second pole piece, an insulating diaphragm, a first electrode and a second electrode; the first electrode and the second electrode are oppositely embedded to form a first cylinder, the insulating diaphragm is arranged between the first electrode and the second electrode, the first pole piece, the insulating diaphragm and the second pole piece are wound by taking the first cylinder as an axis, and the first cylinder is positioned at the axis of the battery cell structure.
2. The cell structure of claim 1, wherein the first electrode comprises: the device comprises a first semi-cylinder and a first semi-disc, wherein the first semi-cylinder and the first semi-disc are vertically arranged, and the first semi-disc is arranged at one end of the first semi-cylinder; the second electrode includes: the second half cylinder and second semicircle dish, the second half cylinder with the second semicircle dish sets up perpendicularly, the second semicircle dish set up in the one end of second half cylinder.
3. The cell structure of claim 2, wherein the first end of the first pole piece and the first end of the second pole piece are both disposed inside the first cylinder, the first end of the first pole piece is attached to the first half-cylinder, the first end of the second pole piece is attached to the second half-cylinder, and the insulating diaphragm is disposed between the first pole piece and the second pole piece.
4. The cell structure of claim 2, wherein the first end of the first pole piece and the first end of the second pole piece are both disposed outside the first cylinder, the first end of the first pole piece is attached to the first half-cylinder, and the first end of the second pole piece is attached to the second half-cylinder.
5. The cell structure of claim 3 or 4, wherein a first end of the first pole piece is provided with a first empty foil segment, and the first empty foil segment is electrically connected with the first electrode; and a second empty foil section is arranged at the first end of the second pole piece and is electrically connected with the second electrode.
6. The cell structure of claim 5, wherein a first insulating layer is disposed between the first half-disk and the second half-cylinder, and a second insulating layer is disposed between the second half-disk and the first half-cylinder.
7. The cell structure of claim 1, the first electrode and the second electrode each comprising a metal.
8. The cell structure of claim 1, wherein a sum of the lengths of the first and second pole pieces is less than the length of the insulating membrane, and an outermost layer of the cell structure is the insulating membrane.
9. The cell structure of claim 1, wherein a height of the first cylinder is greater than a height of the insulating membrane in a height direction of the cell structure.
10. A battery comprising a cell structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021003630.1U CN211980816U (en) | 2020-06-04 | 2020-06-04 | Battery cell structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021003630.1U CN211980816U (en) | 2020-06-04 | 2020-06-04 | Battery cell structure and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980816U true CN211980816U (en) | 2020-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021003630.1U Active CN211980816U (en) | 2020-06-04 | 2020-06-04 | Battery cell structure and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980816U (en) |
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2020
- 2020-06-04 CN CN202021003630.1U patent/CN211980816U/en active Active
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