CN106654389B - Shaping device before welding of high-power electrodeless ear lithium ion battery current collector - Google Patents

Shaping device before welding of high-power electrodeless ear lithium ion battery current collector Download PDF

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Publication number
CN106654389B
CN106654389B CN201611244243.5A CN201611244243A CN106654389B CN 106654389 B CN106654389 B CN 106654389B CN 201611244243 A CN201611244243 A CN 201611244243A CN 106654389 B CN106654389 B CN 106654389B
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China
Prior art keywords
shaping
driving handle
ion battery
lithium ion
lower limiting
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CN201611244243.5A
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CN106654389A (en
Inventor
杨彩玲
张健
张超
罗萍
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CETC 18 Research Institute
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CETC 18 Research Institute
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • H01M10/0587Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention relates to a shaping device before welding of a current collector of a high-power electrodeless-ear lithium ion battery. The invention belongs to the technical field of chemical power sources. A shaping device before welding of a high-power electrode-less ear lithium ion battery current collector is characterized in that a cylindrical structure is arranged at the upper end of each shaping block and matched with a corresponding long hole in a driving handle, a cuboid structure is arranged at the lower end of each shaping block and connected with a lower limiting plate, a plurality of long holes are uniformly distributed in the driving handle along the axial direction, and a plurality of cuboid grooves are uniformly distributed in the lower limiting plate along the axial direction; the shaping blocks move under the common limit of the rectangular hole of the driving handle and the rectangular groove of the lower limiting plate, the inner wall of a regular polyhedron formed by the front ends of the shaping blocks approaches to the cylindrical surface, the cylindrical surface with continuous diameter change is realized, the current collector of the battery core and the positive and negative electrodes are effectively pressed together to be led out, and the shaping of the current collector before welding is realized. The invention has the advantages of simple structure, strong operability, high working efficiency, good controllability of production process, wide application range and the like.

Description

A kind of preceding apparatus for shaping of high power electrodeless lug lithium ion battery collector welding
Technical field
The invention belongs to technical field of chemical power, more particularly to a kind of high power electrodeless lug lithium ion battery collector Apparatus for shaping before welding.
Background technique
Currently, well known coiled lithium ion battery manufacturing technology, in electrode coating procedure, positive plate upside and cathode Lateral edge coiling direction reserves the collector blank of one fixed width under piece, and during electric core winding, positive/negative plate is left white position edge Then coiling direction soldering polar ear spaced apart again draws the positive and negative anodes of tab welding to battery that battery core upper annular is distributed Outlet, all there are the following problems for these existing well known collector connection types: the export and introducing of electric current are confined to limited On solder joint, ducting capacity is poor, and internal resistance is high, current distribution is uneven in charge and discharge process, it is difficult to realize heavy-current discharge;High current is put When electric, internal resistance is big, causes fever serious, battery temperature is excessively high, and there are security risks;Additionally, due to the introducing of tab, result in Battery specific energy decline.
The positive/negative plate for being left white tubular in existing technology is welded direct to the structure of the exit of the positive and negative anodes of battery Design, it is main as shown in figure 9b to rub one plane of Heisei using by the collector end face being left white, then by welding mean with it is positive and negative The connection of pole exit, the main problem of this structure are that it is along battery core that flat rear and positive and negative anodes exit welding direction is rubbed in end face Axis direction carries out, and deposits and is easy to a series of problems, such as causing damage to battery core in the welding process.
Summary of the invention
The present invention is to solve technical problem present in well-known technique and provide a kind of high power electrodeless lug lithium ion battery Apparatus for shaping before collector welds.
The object of the present invention is to provide one kind to have structure simple, and strong operability, work efficiency is high, and production technology is controllable Property good, applied widely, the features such as realizing shaping before the welding of multiple diameter battery and multiple diameter positive and negative anodes exit High power electrodeless lug lithium ion battery collector weld before apparatus for shaping.
Present invention firstly provides a kind of electricity that will be left white collector end face and radially weld with positive and negative anodes exit Pool structure as is shown in fig. 9 c, secondly in order to realize this welding manner, provides a kind of collector apparatus for shaping, before welding will Tubular positive/negative plate is left white collector and positive and negative anodes exit is efficient is effectively pressed, and does standard for radial welding in next step It is standby.
Apparatus for shaping is adopted the technical scheme that before high power electrodeless lug lithium ion battery collector of the present invention welds:
A kind of preceding apparatus for shaping of high power electrodeless lug lithium ion battery collector welding, its main feature is that: high power electrodeless ear Apparatus for shaping includes dressing stick, driving handle, briquetting, lower limiting board and firm banking before affluxion body in lithium ion batteries welds;Often A dressing stick upper end have is corresponded on a cylindrical structure and driving handle strip hole cooperation, dressing stick lower end have a rectangular parallelepiped structure with Lower limiting board connection, driving handle are uniformly distributed several strip holes along axial direction, and lower limiting board is uniformly distributed several rectangular along axial direction Body slot;Dressing stick moves under the common limit of the strip hole of driving handle and the cuboid slot of lower limiting board, several dressing sticks The regular polygon inner wall that is formed of front end, level off to cylindrical surface, realize the cylindrical surface of continuous diameter change, by battery core collector with Collector shaping before welding is realized in effective pressing of positive and negative anodes exit;Firm banking realizes that driving handle drives equipped with briquetting Dressing stick moves steady.
Apparatus for shaping can also use following technical side before high power electrodeless lug lithium ion battery collector of the present invention welds Case:
Apparatus for shaping before the high power electrodeless lug lithium ion battery collector welds, its main feature is that: briquetting passes through spiral shell Nail is fixed on the fixed base, and lower limiting board is fixed by screws on firm banking.
Apparatus for shaping before the high power electrodeless lug lithium ion battery collector welds, its main feature is that: briquetting and driving The contact surface of handle is added with lubricant, and the contact surface between dressing stick and driving handle and lower limiting board is added with lubricant.
The advantages and positive effects of the present invention are:
Apparatus for shaping is due to using the completely new technology of the present invention before high power electrodeless lug lithium ion battery collector welds Scheme, compared with prior art, the invention has the following advantages that
1, the present invention is realization collector directly with shaping before the welding of battery plus-negative plate exit, provides operability By force, high-efficient, the controllable solution route of production technology.
2, strong applicability of the present invention, realize multiple diameter battery with it is whole before the welding of multiple diameter positive and negative anodes exit Shape.
Detailed description of the invention
Fig. 1 is apparatus for shaping structural schematic diagram before high power electrodeless lug lithium ion battery collector of the present invention welds;
Fig. 2 is the A-A schematic cross-sectional view of Fig. 1;
Fig. 3 is the structural schematic diagram of Fig. 1 lower limit position plate;
Fig. 4 and Fig. 5 is the structural schematic diagram of dressing stick in Fig. 1;
Fig. 6 is the structural schematic diagram of driving handle in Fig. 1;
Fig. 7 is after high power electrodeless lug lithium ion battery collector apparatus for shaping hides power down core and pole, to be formed Maximum gauge status diagram;
Fig. 8 is after high power electrodeless lug lithium ion battery collector apparatus for shaping hides power down core and pole, to be formed Minimum diameter status diagram;
Fig. 9 a is electrodeless ear winding schematic diagram of cell structure;
Fig. 9 b is electrodeless ear winding battery core axial direction welding structure schematic diagram;
Fig. 9 c is electrodeless ear winding battery core radial direction welding structure schematic diagram.
Wherein, 1- lithium ion battery cell, 2- lithium ion battery exit, 3- dressing stick, 4- lower limiting board, 5- briquetting, 6- driving handle, 7- firm banking.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing Detailed description are as follows:
Refering to attached drawing 1 to Fig. 8.
Embodiment 1
A kind of high power electrodeless lug lithium ion battery collector apparatus for shaping, including dressing stick, driving handle, briquetting and under Limit plate and firm banking;Several each dressing stick upper ends of dressing stick, which have, to be corresponded to strip hole on a cylindrical structure and driving handle and matches It closes, dressing stick lower end has a rectangular parallelepiped structure to connect with lower limiting board, and driving handle is uniformly distributed several strip holes along axial direction, under Limit plate is uniformly distributed several cuboid slots along axial direction, and when the both ends nigger for driving the driving handle, dressing stick is described The lower movement of the common limit of the cuboid slot of the strip hole and lower limiting board of driving handle, the front end of several dressing sticks is formed just Polyhedron inner wall, levels off to cylindrical surface, and the cylindrical surface of continuous diameter change may be implemented, and realizes the battery core afflux of different-diameter The positive and negative anodes exit of body and different-diameter efficiently effectively presses, and realizes collector shaping before welding.Briquetting is to realize The driving handle drives the steady of the dressing stick movement.Briquetting is fixed by screws on the firm banking, under described Limit plate is fixed by screws on the firm banking, and the contact surface of the briquetting and the driving handle needs to lubricate, institute The contact surface between dressing stick and the driving handle and the lower limiting board is stated to be required to lubricate.
The present embodiment specific structure and implementation process:
High power electrodeless lug lithium ion battery collector apparatus for shaping structural schematic diagram, the apparatus for shaping in figure includes portion Part: 1- lithium ion battery cell, 2- lithium ion battery exit, 3- dressing stick, 4- lower limiting board, 5- briquetting, 6- driving handle, 7- firm banking etc., the core component of above-mentioned apparatus for shaping are dressing stick 3, lower limiting board 4 and driving handle 6.
Wherein: each dressing stick upper end of dressing stick 3, which has, corresponds to strip hole cooperation on a cylindrical structure and driving handle 6, whole 3 lower end of shape block has a rectangular parallelepiped structure to connect with the lower limiting board 4, and driving handle 6 is uniformly distributed several strip holes along axial direction, Lower limiting board 4 is along axial uniformly several cuboid slots, and when the both ends nigger of driving driving handle 6, dressing stick 3 is in driving handle Strip hole and the lower limiting board 4 cuboid slot the lower movement of common limit, the front end of several dressing sticks 3 forms just more Wall in the body of face, levels off to cylindrical surface, and the cylindrical surface of continuous diameter change may be implemented, and realizes the battery core collector of different-diameter It is efficiently effectively pressed with the positive and negative anodes exit of different-diameter, realizes collector shaping before welding.Briquetting 5 is to realize and drive Fixed handle drives the steady of the dressing stick movement.Briquetting 5 is fixed by screws on the firm banking 7, and lower limiting board 4 is logical Cross screw fixed on the fixed base 7, the contact surface of the briquetting and driving handle needs to lubricate, dressing stick and the drive Contact surface between fixed handle and the lower limiting board is required to lubricate.
In the specific implementation, as depicted in figs. 1 and 2, lithium ion battery exit 2 is fixed on lower limiting board 4, lithium ion Battery battery core 1 is placed in the regular dodecahedron center of 12 dressing sticks 3 formation, adjusts the height of lithium ion battery cell 1, makes lithium The collector upper surface that is left white of ion battery battery core 1 is flushed with 3 upper surface of dressing stick, drives the both ends of the driving handle 6 long Handle drives 12 dressing sticks 3 along the fluting spaced motion in 6 structure of lower limiting board 4 and driving handle, radially The even tubular to lithium ion battery cell 1 be left white collector squeeze until lithium ion battery cell 1 tubular be left white collector with The compacting of 2 outer diameter of lithium ion battery exit realizes that the tubular of lithium ion battery cell 1 is left white collector and lithium ion battery is drawn Shaping before 2 welding of end.As shown in fig. 7, can be designed to that the maximum gauge that 12 dressing sticks 3 can be formed is the lithium-ion electric The tubular of pond battery core 1 is left white collector outer diameter size, as shown in figure 8, the minimum that can be designed to that 12 dressing sticks 3 can be formed is straight Diameter is the outer diameter size of lithium ion battery exit 2.
The present embodiment has the structure simple, and strong operability, work efficiency is high, and production technology controllability is good, fits It is wide with range, realize the good effects such as multiple diameter battery and shaping before the welding of multiple diameter positive and negative anodes exit.

Claims (3)

  1. Apparatus for shaping before 1. a kind of high power electrodeless lug lithium ion battery collector welds, it is characterized in that: high power electrodeless ear lithium Apparatus for shaping includes dressing stick, driving handle, briquetting, lower limiting board and firm banking before ion battery collector welds;Each Dressing stick upper end, which has, corresponds to strip hole cooperation on a cylindrical structure and driving handle, dressing stick lower end has a rectangular parallelepiped structure under Limit plate connection, driving handle are uniformly distributed several strip holes along axial direction, and lower limiting board is uniformly distributed several cuboids along axial direction Slot;Dressing stick moves under the common limit of the strip hole of driving handle and the cuboid slot of lower limiting board, several dressing sticks The regular polygon inner wall that front end is formed, levels off to cylindrical surface, realize cylindrical surface diameter consecutive variations and battery core collector with Collector shaping before welding is realized in effective pressing of positive and negative anodes exit;Firm banking realizes that driving handle drives equipped with briquetting Dressing stick moves steady.
  2. Apparatus for shaping before 2. high power electrodeless lug lithium ion battery collector according to claim 1 welds, it is characterized in that: Briquetting is fixed by screws on firm banking, and lower limiting board is fixed by screws on firm banking.
  3. Apparatus for shaping before 3. high power electrodeless lug lithium ion battery collector according to claim 1 or 2 welds, feature Be: the contact surface of briquetting and driving handle added with lubricant, contact surface between dressing stick and driving handle and lower limiting board added with Lubricant.
CN201611244243.5A 2016-12-29 2016-12-29 Shaping device before welding of high-power electrodeless ear lithium ion battery current collector Active CN106654389B (en)

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CN201611244243.5A CN106654389B (en) 2016-12-29 2016-12-29 Shaping device before welding of high-power electrodeless ear lithium ion battery current collector

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Application Number Priority Date Filing Date Title
CN201611244243.5A CN106654389B (en) 2016-12-29 2016-12-29 Shaping device before welding of high-power electrodeless ear lithium ion battery current collector

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102820450A (en) * 2012-07-24 2012-12-12 浙江海悦自动化机械设备有限公司 Reshaping apparatus for terminal posts of storage battery
JP2013134979A (en) * 2011-12-27 2013-07-08 Toyota Industries Corp Manufacturing device of electrode, power storage device, vehicle, manufacturing method of electrode
CN104868174A (en) * 2015-01-30 2015-08-26 中天储能科技有限公司 Winding type high-diameter-to-length-ratio electrochemical energy-storage conversion device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013134979A (en) * 2011-12-27 2013-07-08 Toyota Industries Corp Manufacturing device of electrode, power storage device, vehicle, manufacturing method of electrode
CN102820450A (en) * 2012-07-24 2012-12-12 浙江海悦自动化机械设备有限公司 Reshaping apparatus for terminal posts of storage battery
CN104868174A (en) * 2015-01-30 2015-08-26 中天储能科技有限公司 Winding type high-diameter-to-length-ratio electrochemical energy-storage conversion device

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