CN218242050U - Battery unit - Google Patents
Battery unit Download PDFInfo
- Publication number
- CN218242050U CN218242050U CN202222288382.5U CN202222288382U CN218242050U CN 218242050 U CN218242050 U CN 218242050U CN 202222288382 U CN202222288382 U CN 202222288382U CN 218242050 U CN218242050 U CN 218242050U
- Authority
- CN
- China
- Prior art keywords
- electrode
- group
- electrically connected
- core
- battery cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a battery unit, its characterized in that has: a feedthrough assembly having an external terminal; a housing having an upper cover and a body, a first sidewall of the body having a through hole to which the feedthrough assembly is mounted, a receiving portion being formed between the upper cover and the body; and a core body formed by winding an electrode stack body including a positive electrode and a negative electrode and accommodated in the accommodating part, wherein one end of the core body is at least provided with a first group of electrode plates having the same polarity, the other end of the core body is at least provided with a second group of electrode plates having a polarity different from that of the first group of electrode plates, the first group of electrode plates and the second group of electrode plates include more than 3 electrode plates in total, at least one of the first group of electrode plates is electrically connected with the feed-through assembly, and at least one of the second group of electrode plates is electrically connected with the second side wall of the body.
Description
Technical Field
The present invention relates to a battery unit, and more particularly, to a battery unit having a metal case.
Background
As mobile devices have been increasingly developed, and the demand for mobile devices has increased, research into batteries of different needs has been conducted. In the past, a general battery cell is of a bipolar plate structure, and two pole plates are located on the same side of the battery cell, which may cause the battery cell to shake in a steel shell for too large stroke in the processes of carrying, transferring and using the battery cell after assembly, and easily cause the pole plates to be torn, or even cause short circuit, short circuit and structural damage risks.
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication No. 2010-509711
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above-mentioned technical problems, one embodiment of the present invention provides a battery unit, including: a feedthrough assembly having an external terminal; a housing having an upper cover and a body, a first sidewall of the body having a through hole to which the feedthrough assembly is mounted, a receiving portion being formed between the upper cover and the body; and a core body formed by winding an electrode stack body including a positive electrode and a negative electrode and accommodated in the accommodating part, wherein one end of the core body is at least provided with a first group of electrode plates having the same polarity, the other end of the core body is at least provided with a second group of electrode plates having a polarity different from that of the first group of electrode plates, the first group of electrode plates and the second group of electrode plates include more than 3 electrode plates in total, at least one electrode plate of the first group of electrode plates is electrically connected with the feed-through assembly, and at least one electrode plate of the second group of electrode plates is electrically connected with a second side wall of the body.
In the battery cell according to this embodiment, by providing the first group of electrode tabs and the second group of electrode tabs so as to include 3 or more electrode tabs in total, that is, by providing at least one of the first group of electrode tabs and the second group of electrode tabs so as to include a plurality of electrode tabs, it is possible to reduce the impedance between the electrode tabs and the portions to which the electrode tabs are welded, to optimize the welding positions of the electrode tabs and the case, to increase the welding strength, and to reduce cell rattling.
In the battery cell according to an embodiment of the present invention, the two ends of the core body are formed with electrode foils, the first group of electrode plates is electrically connected to the positive electrode through being connected to the electrode foil of the one end of the core body, and the second group of electrode plates is electrically connected to the negative electrode through being connected to the electrode foil of the other end of the core body.
The first group of electrode tabs are electrically connected to the positive electrode via an electrode foil connected to the one end of the core body, and the second group of electrode tabs are electrically connected to the negative electrode via an electrode foil connected to the other end of the core body, so that the electrode tabs can be provided at both ends of the core body, respectively, and short-circuiting can be suppressed.
In one embodiment of the present invention, a portion of at least one of the first group of electrode sheets and the second group of electrode sheets is embedded in the electrode laminate in a wound form.
By directly embedding a part of at least one of the first group of electrode sheets and the second group of electrode sheets in the electrode laminate in a wound form, the impedance at the connecting portion between the electrode sheets and the core can be suppressed.
In one embodiment of the present invention, the electrode plates of the first group of electrode plates are electrically connected to each other through the external electrode plate.
And all the electrode plates in the first group of electrode plates are mutually and electrically connected through the external electrode plates, so that the welding space of the electrode plates is reduced, and the product precision and the product energy density are improved.
In an embodiment of the present invention, each of the electrode plates of the second group of electrode plates is electrically connected to each other through an external electrode plate.
And all the electrode plates in the second group of electrode plates are electrically connected with each other through the external electrode plates, so that the welding space of the electrode plates is reduced, and the product precision and the product energy density are improved.
In an embodiment of the present invention, the at least one electrode plate of the first group of electrode plates is disposed on the core body, and the at least one electrode plate of the second group of electrode plates is disposed on the other end of the core body, and the at least one electrode plate of the first group of electrode plates is disposed on the other end of the core body, and the at least one electrode plate of the second group of electrode plates is disposed on the other end of the core body
Through the core one serve be close to the position of upper cover, one serve middle part perhaps one serve be close to the position of the bottom of body sets up the electrode slice, can optimize the welding position of electrode slice and casing, increase welding strength, reduce electric core and rock.
In one embodiment of the present invention, at least one of the first group of electrode sheets and the second group of electrode sheets is connected to a head portion, a middle portion, or a tail portion of the electrode stack in a wound form.
The electrode plate is connected with the head part, the middle part or the tail part of the coil in the electrode laminated body, so that the welding position of the electrode plate and the shell can be optimized, the welding strength is increased, and the shaking of the battery cell is reduced.
In the battery cell according to an embodiment of the present invention, the first group of electrode tabs includes a first electrode tab and a second electrode tab,
the first electrode plate and the second electrode plate are electrically connected through an external electrode plate,
the first and second electrode pads are both welded to the feedthrough assembly to electrically connect with the feedthrough assembly.
By adding the external series electrode plates of the plurality of electrode plates, the welding space of the electrode plates can be reduced, and the product precision and the product energy density are improved.
In the battery cell according to an embodiment of the present invention, the first group of electrode tabs includes a first electrode tab and a second electrode tab,
the first electrode plate and the second electrode plate are electrically connected through an external electrode plate,
the first electrode pad is soldered to the feedthrough assembly for electrical connection therewith, while the second electrode pad is not soldered to the feedthrough assembly.
The electrode plates with the same polarity positioned on the same side are connected in series with the external electrode plates, so that the welding frequency of the electrode plates on the shell of the battery unit and the occupied space of welding are reduced.
In the battery cell according to an embodiment of the present invention, the first group of electrode tabs includes a first electrode tab and a second electrode tab,
the first electrode plate and the second electrode plate are electrically connected through an external electrode plate,
the external electrode pad is soldered to the feedthrough assembly to be electrically connected with the feedthrough assembly, while the first and second electrode pads are not soldered to the feedthrough assembly.
The electrode plates with the same polarity positioned on the same side are connected in series with the external electrode plates, so that the welding frequency of the electrode plates on the shell of the battery unit and the occupied space of welding are reduced.
Effect of the utility model
According to the battery unit of this embodiment, the resistance can be reduced by improving the weak point of the conventional wound steel-can battery having a large resistance. In addition, for the characteristic of low strength of the current battery pole piece and the shell after welding, the strength is increased by welding the multiple pole pieces in opposite directions, and the shaking of the battery core is reduced. By adding the external series-connection pole pieces of the multiple pole pieces, the welding space of the pole pieces is reduced, and the product precision and the product energy density are improved.
As described above, according to the utility model discloses an embodiment's battery unit can prevent that electric core from rocking in order to reduce battery pole piece fracture, electric core short circuit, open a way inefficacy risk in the stainless steel seal shell, when the pole piece welding of electric core is more than 3, can reduce electric core impedance more than 10%.
Drawings
Fig. 1 is a cross-sectional view showing an example of the structure of a battery cell according to the embodiment.
Fig. 2 is a perspective view showing an example of a core of a battery unit according to the embodiment.
Fig. 3 is a partially enlarged view illustrating one end of the battery cell according to the embodiment of fig. 1.
Fig. 4 is a partially enlarged view illustrating the other end of the battery cell according to the embodiment of fig. 1.
Fig. 5 is a diagram for explaining embodiment 1.
Fig. 6 is a diagram for explaining embodiment 2.
Fig. 7 is a diagram for explaining embodiment 3.
Description of reference numerals:
1: a battery cell; 2: a core body; 10: a housing; 11: an upper cover; 12: a body; 31: a feedthrough assembly; 311. 32: an external terminal; 21: an electrode laminate; 22, 23: an electrode foil; 24. 25: an electrode sheet; 26. 27, 28: connecting an electrode plate externally; 241. 243, 245: a first electrode sheet; 242. 244, 246: and a second electrode sheet.
Detailed Description
Next, a specific embodiment of the battery unit according to the present invention will be described in detail.
Fig. 1 shows an example of the structure of a battery cell according to an embodiment of the present invention. The battery unit 1 is a so-called laminate type battery unit, and has a case 10 and a core 2. The material constituting the case 10 of the battery unit 1 is not limited, and may be a metal material such as aluminum, iron, and stainless steel is preferable.
The housing 10 has a body 10 having a top surface and four side surfaces, a planar upper cover 11, and a feedthrough assembly 31 provided on a first side wall 122 of the body 12.
The top surface and the four side surfaces of the body 10 may be integrally formed or may be separately formed. The body 12 and the outer peripheral portion of the upper cover 11 are joined by welding or adhesive, forming a receiving portion between the body 12 and the upper cover 11. In addition, a through hole 121 for mounting the feedthrough assembly 31 is formed on the first sidewall 122 of the body 12. The housing portion for housing the core body 2 is formed as a sealed space by the engagement of the body 12 with the outer peripheral portion of the upper lid 11 and the provision of the feedthrough assembly 31 at the through hole 121.
The core 2 is obtained by laminating a positive electrode and a negative electrode with a separator interposed therebetween to form an electrode laminate 21, and winding the electrode laminate in the longitudinal direction.
Fig. 2 is a perspective view showing an example of a core of a battery unit according to the embodiment. One end of the core body 2 is provided with at least one positive electrode tab 24 electrically connected to the positive electrode of the core body 2, and the other end is provided with at least one negative electrode tab 25 electrically connected to the negative electrode of the core body 2.
In the battery cell 1, there are at least 3 electrode tabs, for example, 2 positive electrode tabs 24 and 1 or more negative electrode tabs 25. Alternatively, 1 or more positive electrode tabs 24 and 2 negative electrode tabs 25 may be provided. The positive electrode tab 24 is electrically connected to the external connection terminal 311 of the feedthrough assembly 31 on the first side wall 122. The negative electrode tab 25 is electrically connected to an inner wall of the second side wall 123 opposite the first side wall 122.
Fig. 3 is a partially enlarged view illustrating one end of the battery cell according to the embodiment of fig. 1. One end of the positive electrode tab 24 is electrically connected to the positive electrode of the core 2 by welding to a positive electrode foil 22 provided on the positive electrode side of the core 2, the positive electrode foil 22 being made of, for example, a metal foil containing aluminum or an aluminum alloy, and the positive electrode tab 24 being made of, for example, a conductive material containing aluminum or the like. The positive electrode foil 22 may be omitted, and the positive electrode tab 24 may be embedded in the electrode laminate 21 in the wound form and electrically connected to the positive electrode of the core 2.
The positive electrode tab 24 may be connected to a leading portion, a middle portion, or a trailing portion of the electrode laminate 21 in the wound form.
As shown in fig. 3, at least one of the positive electrode tabs 24 is disposed on one end of the core 2 at a position near the bottom of the body 12. However, at least one of the positive electrode tabs 24 may be provided at one end of the core body 2 near the upper cover 11 or at a middle portion of the one end.
As shown in fig. 3, the feedthrough assembly 31 includes: an external connection terminal 311, a rivet 312, an outer washer 313, an inner washer 314, and an insulator 315.
The outer washer 313 includes a flange extending from the outside of the housing 10 to the inside of the housing 10 through the through hole 121, and the inner diameter of the flange of the outer washer 313 is substantially the same as the outer diameter of the rivet 312. The inner gasket 314 is formed in a ring shape having a thickness substantially equal to the height of a flange extending to the inside of the housing 10, and the inner diameter of the inner gasket 314 is substantially equal to the outer diameter of the flange of the outer gasket 313. The insulator 315 is formed in a ring shape, an outer diameter thereof is formed larger than a diameter of the cap portion of the rivet 312 and smaller than an outer diameter of the inner washer 314, and an inner diameter thereof is formed larger than a shank portion diameter of the rivet 312.
The rivet 312 has a shank portion that protrudes from the inside of the body 12 to the outside of the housing 10 through the through hole 121, and the outer washer 313, the inner washer 314, and the insulator 315 are fixed to the first side wall 122 of the body 12 by caulking. The portion of the rivet 312 located outside the case 10 constitutes an external connection terminal 311, and can be electrically connected to the outside of the battery cell 1.
The other end of the positive electrode tab 24 is electrically connected to the rivet 312 of the feed-through assembly 31, and the connection method is not limited, but is preferably a laser welding method.
Fig. 4 is a partially enlarged view illustrating the other end of the battery cell according to the embodiment of fig. 1. One end of the negative electrode tab 25 is electrically connected to the negative electrode of the core 2 by welding to a negative electrode foil 23 provided on the negative electrode side of the core 2, the negative electrode foil 23 being made of, for example, a metal foil containing nickel, a nickel alloy, copper, or a copper alloy, and the negative electrode tab 25 being made of, for example, a conductive material containing nickel or the like. Negative electrode foil 23 may be omitted, and negative electrode tab 25 may be embedded in electrode laminate 21 in the wound form and electrically connected to the negative electrode of core 2.
The negative electrode tab 25 may be connected to a leading portion, a middle portion, or a trailing portion of the electrode laminate 21 in the wound form.
As shown in fig. 4, at least one of the negative electrode tabs 25 is provided on the other end of the core 2 at a position close to the bottom of the body 12. However, at least one of the positive electrode tabs 24 may be provided at the other end of the core body 2 near the upper cover 11 or at the center of the other end.
The other end of the negative electrode tab 25 is electrically connected to the external terminal 32 provided on the second side wall 123, and the connection method is not limited, and is preferably a laser welding method.
Therefore, the two ends of the electrode plates in the length direction of the core body are welded in the opposite direction, so that the strength of the core body positioned in the battery unit can be increased, and the shaking of the core body is reduced.
Next, an example of the battery cell according to the present invention will be described.
[ example 1]
As shown in fig. 5, the positive electrode tab 24 includes a first electrode tab 241 and a second electrode tab 242, and the first electrode tab 241 and the second electrode tab 242 are electrically connected in series in an external connection via the external electrode tab 26. The connection method is not limited, and is preferably a welding method. Also, the first and second electrode tabs 241 and 242 are each welded to the feedthrough assembly 31 to be electrically connected thereto.
[ example 2]
As shown in fig. 6, the positive electrode tab 24 includes a first electrode tab 243 and a second electrode tab 244, and the first electrode tab 243 and the second electrode tab 244 are electrically connected in series via the external electrode tab 27. The connection method is not limited, and is preferably a welding method. And, only the first electrode plate 243 is welded to the feedthrough assembly 31 to be electrically connected to the feedthrough assembly 31.
[ example 3]
As shown in fig. 7, the positive electrode tab 24 includes a first electrode tab 245 and a second electrode tab 246, and the first electrode tab 245 and the second electrode tab 246 are electrically connected in series in an external connection via the external connection electrode tab 28. The connection method is not limited, but is preferably a welding method. The outer electrode pad 28 has an extension portion 281, and is welded to the feedthrough assembly 31 through the extension portion 281 of the outer electrode pad 28 to be electrically connected to the feedthrough assembly 31, while the first and second electrode pads 245 and 246 are not welded to the feedthrough assembly 31.
According to embodiments 1 to 3, the homopolar electrode plates located on the same side reduce the welding frequency and the space occupied by welding of the electrode plates in the case of the battery cell by connecting external electrode plates in series, so that the welding space of the electrode plates can be reduced by adding the external electrode plates of the plurality of electrode plates, and the product precision and the product energy density are improved. When the pole pieces of the battery cell are welded for more than 3, the impedance of the battery cell can be reduced by more than 10%.
Although an embodiment of the present invention has been described with reference to an example in which 2 positive electrode tabs and 1 negative electrode tab, the present invention is not limited to this, and the battery unit 1 may have 2 positive electrode tabs and 2 or more negative electrode tabs, or the battery unit 1 may have 1 or more than 2 positive electrode tabs and 2 negative electrode tabs.
Although an embodiment of the present invention has been described with reference to an example in which the positive electrode sheet and the negative electrode sheet are located at different ends of the core, the present invention is not limited to this, and the positive electrode sheet set and the negative electrode sheet set may be provided at one end of the core, and the positive electrode sheet set and the negative electrode sheet set may also be provided at the other end of the core, and each of the electrode sheet sets includes one or more electrode sheets, so that the welding manner may be more flexible, and the fixation of the core in the housing may be ensured.
Although some embodiments of the present invention have been described, these embodiments are presented as examples only, and are not intended to limit the scope of the invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the spirit of the present invention. These embodiments and modifications are included in the scope and gist of the invention, and also included in the invention described in the claims and equivalent ranges thereof.
Claims (10)
1. A battery cell (1), characterized by having:
a feedthrough assembly (31) having an external connection terminal (311);
a case (10) having an upper lid (11) and a body (12), a first side wall (122) of the body (12) having a through hole (121) to which the feedthrough assembly (31) is mounted, a housing portion being formed between the upper lid (11) and the body (12); and
a core (2) wound from an electrode laminate (21) including a positive electrode and a negative electrode and housed in the housing section,
one end of the core body (2) is at least provided with a first group of electrode plates (24) with the same polarity, the other end of the core body (2) is at least provided with a second group of electrode plates (25) with the polarity different from that of the first group of electrode plates (24),
the first group of electrode plates (24) and the second group of electrode plates (25) comprise more than 3 electrode plates,
at least one of the first set of electrode pads (24) is electrically connected with the feed-through assembly (31), and at least one of the second set of electrode pads (25) is electrically connected with a second sidewall (123) of the body (12).
2. The battery cell of claim 1,
electrode foils (22, 23) are formed at both ends of the core (2), the first group of electrode tabs (24) are electrically connected to the positive electrode through the electrode foil connected to the one end of the core (2), and the second group of electrode tabs (25) are electrically connected to the negative electrode through the electrode foil connected to the other end of the core (2).
3. The battery cell of claim 1,
a part of at least one of the first group of electrode sheets (24) and the second group of electrode sheets (25) is embedded in the electrode laminate (21) in a wound state.
4. The battery cell of claim 1,
the electrode plates of the first group of electrode plates (24) are electrically connected with each other through external electrode plates.
5. The battery cell of claim 1,
and each electrode plate in the second group of electrode plates (25) is electrically connected with each other through an external electrode plate.
6. The battery cell of claim 1,
the at least one of the first set of electrode pads (24) is disposed at a position on the one end of the core (2) that is close to the upper cover (11), a middle portion on the one end, or a position on the one end that is close to the bottom of the body (12), and the at least one of the second set of electrode pads (25) is disposed at a position on the other end of the core (2) that is close to the upper cover (11), a middle portion on the other end, or a position on the other end that is close to the bottom of the body (12).
7. The battery cell of claim 1,
at least one of the first group of electrode sheets (24) and the second group of electrode sheets (25) is connected to a roll-to-roll portion, or a roll-to-roll portion in the electrode laminate (21) in a rolled configuration.
8. The battery cell according to any one of claims 1 to 7,
the first set of electrode sheets (24) comprises a first electrode sheet (241) and a second electrode sheet (242),
the first electrode sheet (241) and the second electrode sheet (242) are electrically connected through an external electrode sheet (26),
the first and second electrode plates (241, 242) are each welded to the feed-through assembly (31) to electrically connect with the feed-through assembly (31).
9. The battery cell according to any one of claims 1 to 7,
the first set of electrode sheets (24) comprises a first electrode sheet (243) and a second electrode sheet (244),
the first electrode sheet (243) and the second electrode sheet (244) are electrically connected through an external electrode sheet (27),
the first electrode plate (243) is welded to the feedthrough assembly (31) for electrical connection with the feedthrough assembly (31), while the second electrode plate (244) is not welded to the feedthrough assembly (31).
10. The battery cell according to any one of claims 1 to 7,
the first set of electrode sheets (24) comprises a first electrode sheet (245) and a second electrode sheet (246),
the first electrode sheet (245) and the second electrode sheet (246) are electrically connected through an external electrode sheet (28),
the outer electrode pad (28) is welded to the feedthrough assembly (31) to electrically connect with the feedthrough assembly (31), while the first and second electrode pads (245, 246) are not welded to the feedthrough assembly (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288382.5U CN218242050U (en) | 2022-08-30 | 2022-08-30 | Battery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288382.5U CN218242050U (en) | 2022-08-30 | 2022-08-30 | Battery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218242050U true CN218242050U (en) | 2023-01-06 |
Family
ID=84686007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222288382.5U Active CN218242050U (en) | 2022-08-30 | 2022-08-30 | Battery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218242050U (en) |
-
2022
- 2022-08-30 CN CN202222288382.5U patent/CN218242050U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110462881B (en) | Flexible battery with reinforced tab junction structure and electrode lead bending structure | |
| JP5345114B2 (en) | Secondary battery | |
| US20060099504A1 (en) | Secondary battery | |
| KR20080019311A (en) | Pouch-type secondary battery having improved safety by preventing internal moving of electrode assembly | |
| EP2783406B1 (en) | Battery comprising an electric connector | |
| US20050221178A1 (en) | Electrode package and secondary battery using the same | |
| US11271274B2 (en) | Secondary battery | |
| CN210136949U (en) | Secondary battery | |
| CN108140779A (en) | Battery modules and battery pack and vehicle comprising the battery modules | |
| US11695190B2 (en) | Secondary battery | |
| WO2023185285A1 (en) | Battery | |
| EP4250465A2 (en) | Battery | |
| US20230307798A1 (en) | Battery | |
| CN111969171A (en) | Electrochemical device and electronic device | |
| JP2001357825A (en) | Battery | |
| US20110262787A1 (en) | Electrochemical Cell with Reduced Magnetic Field Emission and Corresponding Devices | |
| CN211265619U (en) | Button cell | |
| CN218242050U (en) | Battery unit | |
| EP4156356A1 (en) | Cylindrical secondary battery | |
| CN215118945U (en) | Battery cell and electronic equipment | |
| CN211265602U (en) | Button cell | |
| CN114223077A (en) | Battery and electric equipment | |
| JP2004241353A (en) | Terminal structure of storage element, and storage element | |
| CN219246879U (en) | Secondary battery and electronic device | |
| CN217062447U (en) | Battery with a battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |