CN115241608A - Collector plate and cylindrical lithium battery - Google Patents

Collector plate and cylindrical lithium battery Download PDF

Info

Publication number
CN115241608A
CN115241608A CN202211002083.9A CN202211002083A CN115241608A CN 115241608 A CN115241608 A CN 115241608A CN 202211002083 A CN202211002083 A CN 202211002083A CN 115241608 A CN115241608 A CN 115241608A
Authority
CN
China
Prior art keywords
collector plate
pole group
battery pole
connecting piece
current collecting
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.)
Granted
Application number
CN202211002083.9A
Other languages
Chinese (zh)
Other versions
CN115241608B (en
Inventor
王晓琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Selmor Star Technology Co ltd
Original Assignee
Shenzhen Selmor Star Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Selmor Star Technology Co ltd filed Critical Shenzhen Selmor Star Technology Co ltd
Priority to CN202211002083.9A priority Critical patent/CN115241608B/en
Publication of CN115241608A publication Critical patent/CN115241608A/en
Application granted granted Critical
Publication of CN115241608B publication Critical patent/CN115241608B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/107—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/673—Containers for storing liquids; Delivery conduits therefor
    • H01M50/682—Containers for storing liquids; Delivery conduits therefor accommodated in battery or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Abstract

The invention provides a current collecting plate and a cylindrical lithium battery, wherein the current collecting plate comprises a top part and a bottom part, the top part and the bottom part are circular, the top part is wound by taking the circle center as a reference and is provided with a notch and a connecting piece, the bottom part is connected with a battery pole group, the notch is used for guiding liquid to the battery pole group, the connecting piece is used for being connected with the battery pole group, and the connecting piece is formed by sinking the top part to the bottom part; the notches and the connecting pieces are in a spiral shape and are distributed at intervals. In the lithium battery electrolyte injection process, the current collecting plate can form an electrolyte injection channel which is diffused around the central spiral line shape through the spiral line-shaped notch, so that the electrolyte can be rapidly permeated, the electrolyte permeation consistency of the electrode plate electrolyte is effectively improved, the electrolyte injection time is reduced, and the product quality is further improved. Moreover, the connecting piece in the shape of the spiral line is connected with the battery pole group, so that the internal resistance of the battery pole group is favorably reduced, the output current of the battery can be improved, the internal heat emission can be reduced, and the safety can be improved.

Description

Collector plate and cylindrical lithium battery
Technical Field
The invention relates to the technical field of batteries, in particular to a current collecting plate and a cylindrical lithium battery.
Background
With the development of economy and society, batteries, particularly lithium batteries, are rapidly developing. The lithium battery has wide application prospect in the aspects of electric vehicle power supply and energy storage. The existing cylindrical battery comprises a battery shell and a current collecting plate arranged at the end part of a pole group, wherein the current collecting plate is provided with a plurality of liquid guide holes for electrolyte to permeate the battery pole group, liquid is guided through the liquid guide holes of the current collecting plate, and current collection leads to the fact that an area (especially a non-porous area) still exists below the current collecting plate and electrolyte permeation cannot be obtained at the first time, particularly, the electrolyte permeation consistency is poor below the welding part of the current collecting plate and the battery pole group, and the electrolyte injection time is long. In addition, the conventional welding of the current cylindrical current collecting plate and the battery pole group is linear welding, the internal resistance of the battery pole group is still high, the charging and discharging performance of the battery is influenced, and the pole group and the current collecting plate are easy to be subjected to desoldering in the charging and discharging process.
Disclosure of Invention
The embodiment of the invention provides a collector plate and a cylindrical lithium battery, and aims to solve the problems of poor electrolyte permeation consistency and high resistance inside a battery pole group.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a current collecting plate, where the current collecting plate is configured to be disposed on a battery pole group, the current collecting plate includes a top and a bottom, the top and the bottom are both circular, the top is wound with a notch and a connecting piece around a circle center as a reference, the bottom is connected to the battery pole group, the notch is used to guide liquid to the battery pole group, the connecting piece is used to be connected to the battery pole group, and the connecting piece is formed by recessing the top to the bottom; the notches and the connecting pieces are both in a spiral shape and are distributed at intervals.
The invention is further configured to: the top comprises a central area and a non-central area, the gap is the width center line of the gap by taking a spiral equation track, and the gap formed by the metal material of the collector plate is removed by taking the track part of the non-central area with equal width.
The invention is further configured to: the connecting piece takes a spiral line equation track as a width central line of the connecting piece, and the track part of the non-central area is taken to punch the metal material of the current collecting plate in an equal width manner to form the connecting piece.
The invention is further configured to: the depth of the groove formed by the connecting piece is larger than the thickness of the current collecting plate.
The invention is further configured to: the top is formed with the cutting seam, the cutting seam is non-closed loop curve, the cutting seam encircles and the equidistance skew is by the connecting piece.
The invention is further configured to: the rotation directions of the notch and the connecting piece are the same; wherein, the direction of rotation of breach and connecting piece is clockwise or anticlockwise.
The invention is further configured to: the current collecting plate is a negative current collecting plate, and the top of the current collecting plate is provided with a central hole.
The invention is further configured to: the top is also provided with a positioning hole.
In a second aspect, an embodiment of the present invention provides a cylindrical lithium battery, including the current collecting plate described above.
Compared with the prior art, the invention has the following beneficial effects: a current collector and a cylindrical lithium battery are provided. In the lithium battery electrolyte injection process, the current collecting plate can form an electrolyte injection channel which is diffused around the central spiral line shape through the spiral line-shaped notch, so that the electrolyte can be rapidly permeated, the electrolyte permeation consistency of the electrode plate electrolyte is effectively improved, the electrolyte injection time is reduced, and the product quality is further improved. Moreover, the connecting piece in the shape of the spiral line is connected with the battery pole group, so that the internal resistance of the battery pole group is favorably reduced, the output current of the battery can be improved, the internal heat emission can be reduced, and the safety can be improved.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a top portion of a collector plate according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a bottom of a current collecting plate according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a top portion of a current collecting plate according to another embodiment of the present invention.
Fig. 4 is a schematic structural view of a central region and a non-central region of a current collecting plate according to an embodiment of the present invention.
In the figure: 1. a top portion; 11. a notch; 12. a connecting member; 13. cutting a seam; 14. a central bore; 15. positioning holes; 2. a bottom; 100. a collector plate; A. a central region; B. a non-central region.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 3, the present invention provides a current collecting plate 100, where the current collecting plate 100 is configured to be disposed on a battery electrode group, and is characterized in that the current collecting plate 100 includes a top portion 1 and a bottom portion 2, where the top portion 1 and the bottom portion 2 are both circular, the top portion 1 is wound with a gap 11 and a connecting member 12 by using a circle center as a reference, the bottom portion 2 is connected with the battery electrode group, the gap 11 is used for guiding a liquid to the battery electrode group, the connecting member 12 is used for being connected with the battery electrode group, and the connecting member 12 is formed by recessing the top portion 1 to the bottom portion 2; the notches 11 and the connecting pieces 12 are both in a spiral line shape, and the notches 11 and the connecting pieces 12 are distributed at intervals.
Specifically, the connecting pieces 12 form grooves, one end of the connecting pieces 12, which is recessed toward the bottom 2, is welded to the battery plate assembly, and the number of the connecting pieces 12 and the notches 11 can be adjusted according to actual conditions, for example, the number of the connecting pieces 12 and the notches 11 can be changed according to changes in the outer diameter of the current collecting plate 100, for example, the number of the spiral connecting pieces 12 and the notches 11 in fig. 1 is 1, and the number of the spiral connecting pieces 12 and the notches 11 in fig. 3 is 2, and thus, the number is not limited herein. Meanwhile, in the embodiment, the battery pole group is formed by winding the battery pole group in a spiral line mode, and the curve of the welding position is set to be the spiral line, so that the radial expansion stress generated in the electrode charging and discharging process can be relieved, and the welding failure can be prevented.
Referring to fig. 4, the top portion 1 includes a central area a and a non-central area B, the notch 11 is formed by taking a spiral equation track as a width center line of the notch 11, and taking a track portion of the non-central area B with an equal width to remove the notch 11 formed by the metal material of the current collecting plate 100.
Specifically, the range of the central area a may be adjusted according to actual conditions, and is not limited herein. As shown in fig. 2, the notches 11 may be hollowed out towards the middle or towards the central area a or towards the non-central area B. The gap 11 is hollow with respect to the current collecting plate 100. In addition, in the spiral equation, the center of a circle is used as a reference, and the radius r is used as a variable parameter. Wherein, the planar Cartesian coordinate equation of the Archimedes spiral is as follows: x = (α + β θ) cos θ; y = (α + β θ) sin θ. An archimedean spiral is a trajectory produced by a point moving away from a fixed point at a constant speed while rotating around the fixed point at a constant angular velocity. The shape of the gap 11 can be changed according to the change of parameters of the spiral equation, and the width of the gap 11 can also be changed according to the liquid flow characteristics, for example, the width of the gap 11 is 2mm as shown in fig. 1. Of course, the width of the notch 11 can be adjusted according to practical situations, and is not limited herein.
Referring to fig. 4, the connecting member 12 is formed by stamping the metal material of the current collecting plate 100 with the same width by taking the spiral equation track as the width center line of the connecting member 12 and taking the track part of the non-central area B.
Specifically, as shown in fig. 2, the connecting member 12 is a bump with respect to the bottom 2, and the bump is welded to the battery pole group. The trajectory of the connecting element 12 is calculated in the same way as the notch 11, wherein the shape of the connecting element 12 can be changed according to the parameter change of the spiral equation, and the width of the connecting element 12 can also be changed according to the size of the welding spot, for example, the width of the connecting element 12 is 2mm as selected in fig. 1. Of course, the width of the connecting member 12 can be adjusted according to practical situations, and is not limited herein.
Referring to fig. 2, the depth of the groove formed by the connecting member 12 is greater than the thickness of the current collecting plate 100.
Specifically, the connector 12 is recessed from the top 1 to the bottom 2 by a depth greater than the thickness of the current collecting plate 100, thereby facilitating the welding of the connector 12 to the battery cell.
Referring to fig. 1 and 3, the top portion 1 is formed with a cutting slit 13, the cutting slit 13 is a non-closed loop curve, and the cutting slit 13 surrounds and is equidistantly offset beside the connecting member 12.
Specifically, the cutting seam 13 is used for ensuring that the helical line connecting piece 12 has flexible deformation, namely, the connecting piece 12 has a certain free movement space distance with the position of the cutting seam 13, so that welding and desoldering are prevented. Wherein, the width of the cutting seam 13 in the schematic diagram is 5mm. Of course, the width of the cutting seam 13 can be adjusted according to practical situations, and is not limited herein.
Referring to fig. 1, the rotation directions of the notch 11 and the connecting member 12 are the same; the rotation direction of the notch 11 and the connecting piece 12 is clockwise or counterclockwise.
As shown in fig. 1, the direction of rotation of the connector 12 and the groove is clockwise.
Referring to fig. 1 to 3, the current collecting plate 100 is an anode current collecting plate 100, and the top 1 is provided with a central hole 14.
Specifically, the central hole 14 or no central hole 14 may be provided according to the difference of the positive and negative polarities of the battery pole group, the negative electrode has a central hole 14, and the positive electrode has no central hole 14. In this embodiment, the central hole 14 facilitates insertion of a welding pin into the cell and penetration of electrolyte.
Referring to fig. 1 to 3, the top portion 1 is further formed with a positioning hole 15.
Specifically, there are 2 positioning holes 15 as shown in fig. 1 and 3 for circumferential positioning purposes.
Further, the current collecting plate 100 is made of a material with good electrical conductivity, such as aluminum, nickel, copper or an alloy.
In this embodiment, the present invention further provides a cylindrical lithium battery (not shown in the drawings), including the collector plate 100 described above.
In summary, compared with the prior art, the invention has the beneficial effects that: a current collecting plate 100 and a cylindrical lithium battery are provided. In the lithium battery electrolyte injection process, the current collecting plate 100 can form an electrolyte injection channel which is diffused around the central spiral line shape through the spiral line-shaped notch 11, so that the electrolyte can permeate quickly, the consistency of the electrode plate electrolyte injection is effectively improved, the electrolyte injection time is reduced, and the product quality is improved. Moreover, the connecting piece 12 in the shape of the spiral line is connected with the battery pole group, so that the internal resistance of the battery pole group is favorably reduced, the output current of the battery can be improved, the internal heat emission can be reduced, and the safety can be improved. Meanwhile, the battery pole group is formed by winding the spiral line, so that the curve of the welding part is set into the spiral line, which is beneficial to relieving the radial expansion stress generated in the electrode charging and discharging process, and further preventing the desoldering.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. A current collecting plate is used for being arranged on a battery pole group and is characterized by comprising a top and a bottom, wherein the top and the bottom are both circular, the top is wound with a notch and a connecting piece by taking the circle center as the reference, the bottom is connected with the battery pole group, the notch is used for guiding liquid to the battery pole group, the connecting piece is used for being connected with the battery pole group, and the connecting piece is formed by sinking the top to the bottom; the notches and the connecting pieces are both in a spiral shape and are distributed at intervals.
2. The collector plate according to claim 1, wherein said top portion comprises a central region and a non-central region, said gap is a width centerline of said gap defined by a helical locus, and said non-central region is a part of said locus having a constant width, and said gap is formed by removing said metal material of said collector plate.
3. The collector plate according to claim 2, wherein said connecting member is a connecting member formed by punching a metal material of said collector plate with a constant width by taking a trajectory portion of said non-central region as a center line of a width of said connecting member in a helical equation trajectory.
4. The collector plate as claimed in claim 1, wherein the depth of the recess formed by the connector is greater than the thickness of the collector plate.
5. The collector plate of claim 1, wherein said top portion is formed with cutting slits, said cutting slits being non-closed loop curves, said cutting slits encircling and equidistantly offset from said connecting members.
6. The collector plate according to claim 1, wherein said notches and said connectors rotate in the same direction; wherein, the direction of rotation of breach and connecting piece is clockwise or anticlockwise.
7. The collector plate of claim 1, wherein said collector plate is an anode collector plate, said top portion having a central aperture.
8. The collector plate of claim 1, wherein said top portion further defines positioning holes.
9. A cylindrical lithium battery comprising the current collecting plate according to any one of claims 1 to 8.
CN202211002083.9A 2022-08-20 2022-08-20 Current collecting plate and cylindrical lithium battery Active CN115241608B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211002083.9A CN115241608B (en) 2022-08-20 2022-08-20 Current collecting plate and cylindrical lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211002083.9A CN115241608B (en) 2022-08-20 2022-08-20 Current collecting plate and cylindrical lithium battery

Publications (2)

Publication Number Publication Date
CN115241608A true CN115241608A (en) 2022-10-25
CN115241608B CN115241608B (en) 2024-03-22

Family

ID=83680791

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211002083.9A Active CN115241608B (en) 2022-08-20 2022-08-20 Current collecting plate and cylindrical lithium battery

Country Status (1)

Country Link
CN (1) CN115241608B (en)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11233107A (en) * 1998-02-13 1999-08-27 Sanyo Electric Co Ltd Alkaline storage battery using nonsintred type electrode, and its manufacture
JP2000058038A (en) * 1998-08-07 2000-02-25 Honda Motor Co Ltd Accumulating element
JP2000077054A (en) * 1998-09-01 2000-03-14 Sanyo Electric Co Ltd Battery and its manufacture
EP1134819A2 (en) * 2000-03-14 2001-09-19 Sanyo Electric Co., Ltd. Nonaqueous electrolyte secondary cells
JP2003272600A (en) * 2002-03-13 2003-09-26 Sanyo Electric Co Ltd Secondary battery
JP2005108535A (en) * 2003-09-29 2005-04-21 Sanyo Electric Co Ltd Cylindrical secondary battery
CN1832228A (en) * 2005-03-09 2006-09-13 三洋电机株式会社 Battery and method of manufacturing the same
EP2182566A1 (en) * 2008-10-31 2010-05-05 Sanyo Electric Co., Ltd. cylindrical secondary battery having structure in which electrode assembly is connected with sealing cover via combination of current collector plate and current collector lead
EP2367219A2 (en) * 2010-03-18 2011-09-21 Sanyo Electric Co., Ltd. Cylindrical secondary battery and method of manufacturing the same
US20170149046A1 (en) * 2014-07-24 2017-05-25 Hitachi Automotive Systems, Ltd. Secondary Battery
CN106953062A (en) * 2017-04-15 2017-07-14 陈学琴 The continuous asymmetric netted pole piece electrode winding battery in the same direction of mixing of lug
CN107611329A (en) * 2017-09-18 2018-01-19 华霆（合肥）动力技术有限公司 Battery welding device and battery modules
CN207149616U (en) * 2017-09-18 2018-03-27 华霆（合肥）动力技术有限公司 Battery welding device and battery modules
CN208284552U (en) * 2018-06-01 2018-12-25 苏州安靠电源有限公司 The uniform end face weld battery of fluid injection
CN111081966A (en) * 2019-11-21 2020-04-28 国轩新能源(庐江)有限公司 Lithium ion cylindrical battery and processing method thereof
CN114512673A (en) * 2020-10-29 2022-05-17 深圳市比克动力电池有限公司 Collector plate and cylindrical lithium battery
CN114695855A (en) * 2022-03-24 2022-07-01 湘潭大学 Lithium/titanium co-doped sodium ion battery composite cathode material and preparation method and application thereof
KR102420876B1 (en) * 2021-08-20 2022-07-14 주식회사 유로셀 Jelly roll and current collector plate assembly for secondary cell

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11233107A (en) * 1998-02-13 1999-08-27 Sanyo Electric Co Ltd Alkaline storage battery using nonsintred type electrode, and its manufacture
JP2000058038A (en) * 1998-08-07 2000-02-25 Honda Motor Co Ltd Accumulating element
JP2000077054A (en) * 1998-09-01 2000-03-14 Sanyo Electric Co Ltd Battery and its manufacture
EP1134819A2 (en) * 2000-03-14 2001-09-19 Sanyo Electric Co., Ltd. Nonaqueous electrolyte secondary cells
JP2003272600A (en) * 2002-03-13 2003-09-26 Sanyo Electric Co Ltd Secondary battery
JP2005108535A (en) * 2003-09-29 2005-04-21 Sanyo Electric Co Ltd Cylindrical secondary battery
CN1832228A (en) * 2005-03-09 2006-09-13 三洋电机株式会社 Battery and method of manufacturing the same
EP2182566A1 (en) * 2008-10-31 2010-05-05 Sanyo Electric Co., Ltd. cylindrical secondary battery having structure in which electrode assembly is connected with sealing cover via combination of current collector plate and current collector lead
EP2367219A2 (en) * 2010-03-18 2011-09-21 Sanyo Electric Co., Ltd. Cylindrical secondary battery and method of manufacturing the same
US20170149046A1 (en) * 2014-07-24 2017-05-25 Hitachi Automotive Systems, Ltd. Secondary Battery
CN106953062A (en) * 2017-04-15 2017-07-14 陈学琴 The continuous asymmetric netted pole piece electrode winding battery in the same direction of mixing of lug
CN107611329A (en) * 2017-09-18 2018-01-19 华霆（合肥）动力技术有限公司 Battery welding device and battery modules
CN207149616U (en) * 2017-09-18 2018-03-27 华霆（合肥）动力技术有限公司 Battery welding device and battery modules
CN208284552U (en) * 2018-06-01 2018-12-25 苏州安靠电源有限公司 The uniform end face weld battery of fluid injection
CN111081966A (en) * 2019-11-21 2020-04-28 国轩新能源(庐江)有限公司 Lithium ion cylindrical battery and processing method thereof
CN114512673A (en) * 2020-10-29 2022-05-17 深圳市比克动力电池有限公司 Collector plate and cylindrical lithium battery
KR102420876B1 (en) * 2021-08-20 2022-07-14 주식회사 유로셀 Jelly roll and current collector plate assembly for secondary cell
CN114695855A (en) * 2022-03-24 2022-07-01 湘潭大学 Lithium/titanium co-doped sodium ion battery composite cathode material and preparation method and application thereof

Also Published As

Publication number Publication date
CN115241608B (en) 2024-03-22

Similar Documents

Publication Publication Date Title
CN107710459B (en) Battery and battery pack
JP5583421B2 (en) Square sealed secondary battery and method for manufacturing square sealed secondary battery
US10205152B2 (en) Bushing forming a terminal for a lithium storage battery and related storage battery
US9819017B2 (en) Sealed battery and battery jacket can
CN217444585U (en) Cylindrical battery core and cylindrical battery
JP6436097B2 (en) Capacitors
KR100637440B1 (en) Secondary battery and terminal assembly using the same
CN111886715A (en) Battery, battery pack, power storage device, vehicle, and flying object
JPH11111259A (en) Winding type battery
CN115241608A (en) Collector plate and cylindrical lithium battery
CN216133955U (en) Collector plate and cylindrical battery
CN216793829U (en) Cylindrical battery and battery pack
EP4007023A1 (en) Battery
CN111919312B (en) Cylindrical battery and method for manufacturing same
JP6994682B2 (en) battery
JP2008135357A (en) Tubular electric power source, and electric power source body
JP2000100415A (en) Storage battery
US10468657B2 (en) Electrical storage device and manufacturing method for electrical storage device
CN219832704U (en) Negative electrode current collecting disc, battery cover plate assembly and cylindrical battery
CN216648530U (en) Tab and top cover connecting structure and secondary battery
EP4303974A1 (en) Cylindrical battery
CN220155622U (en) Battery shell and cylindrical battery
CN220358118U (en) Full-tab battery cell and battery
CN219086202U (en) Bipolar lug battery pole piece structure and battery
CN220585433U (en) Battery and battery device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant