CN102544437A - Differential pitch pole piece and power battery adopting same - Google Patents
Differential pitch pole piece and power battery adopting same Download PDFInfo
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- CN102544437A CN102544437A CN2012100347198A CN201210034719A CN102544437A CN 102544437 A CN102544437 A CN 102544437A CN 2012100347198 A CN2012100347198 A CN 2012100347198A CN 201210034719 A CN201210034719 A CN 201210034719A CN 102544437 A CN102544437 A CN 102544437A
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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 invention discloses a differential pitch pole piece and a power battery adopting the same, wherein the power battery comprises a battery cell, a positioning cover, an aluminium cover and a shell, the battery cell is arranged in the shell, the positioning cover is arranged above the battery cell, the aluminium cover is arranged above the positioning cover and is fixedly connected with the shell, the battery cell comprises a positive pole piece, a first membrane, a negative pole piece and a second membrane, both the positive and the negative pole pieces are differential pitch pole pieces, each differential pitch pole piece comprises a coating part and a non-coating part which is positioned above the coating part, the non-coating parts are punched at intervals to form a plurality of projecting parts, the widths of the projecting parts are the same, pitches between every two adjacent projecting parts are sequentially increased from front to back for forming a single differential pitch structure, or the pitches between every two spaced projecting parts are sequentially increased from front to back for forming a double-differential pitch structure, after the whole differential pitch pole pieces are wound, all the projecting parts are superposed with one another to form a pole lug, and the positive pole piece, the first membrane, the negative pole piece and the second membrane are stacked orderly to be wound into the battery cell. In the invention, the structure and the technology are simplified, the volume is reduced, and the quality of the power battery is improved.
Description
[technical field]
The present invention relates to a kind of electrokinetic cell that differs from the pitch pole piece and adopt this difference pitch pole piece.
[background technology]
Lug in the electrokinetic cell of producing generally is to adopt metal tape and pole piece to weld together at present, and welding needs a lot of welding equipments, and the fracture of lug is a common occurrence in welding process, and rosin joint once in a while also is to be difficult to control; Therefore, this welded product is complex technical process not only, and production efficiency is low; And current impedance is big, and product quality is difficult to control, therefore; The applicant has proposed the patent No. on May 7th, 2010: 201020184982.1, and name is called a kind of patent application of elliptic dynamic lithium ion battery, and this electrokinetic cell comprises housing, case top lid, housing bottom; Be provided with the volume core in the said housing, said case top lid is provided with positive terminal, negative terminal, and said volume core upper end is provided with the negative pole currect collecting circle corresponding with negative terminal; Said volume core lower end is provided with the anode collection circle corresponding with positive terminal, and the production process of the elliptic dynamic battery of this improvement structure is simple, and production efficiency obviously improves; And can lower the current impedance when discharging, have effect preferably, still; This structure is to establish the negative pole currect collecting circle corresponding with negative terminal in the upper end of volume core, establishes the anode collection circle corresponding with positive terminal in the lower end of volume core, and negative pole currect collecting circle and anode collection circle are connected on negative terminal and the positive terminal through negative pole brace and positive strap respectively again; This structure will be carried out afflux in the top and bottom of volume core respectively, and it is very big to take up room, and makes oval volume of battery very big; Thereby having influenced its application in a plurality of fields, and, still need be drawn out to behind the afflux of lower end on the pole of upper end; Structure is complicated, has also increased volume to a certain extent, though the positive terminal of part battery and the two ends that negative terminal lays respectively at the volume core are also arranged; But poor for applicability with applied environment of this battery, application is limited to very much, and battery is installed inconvenient on specific product.
[summary of the invention]
The object of the invention solves the problems of the prior art exactly, proposes a kind of electrokinetic cell that differs from the pitch pole piece and adopt this pole piece, not only can reduce the elliptic dynamic volume of battery, and can simplified structure, improves product quality.
For realizing above-mentioned purpose; The present invention proposes a kind of poor pitch pole piece that is used for electrokinetic cell; Comprise coating portion and the uncoated portion that is positioned at coating portion top; Said uncoated portion is the some protuberances of die-cut formation at interval, and the width of all protuberances equates, the spacing between the two adjacent protuberances increases successively after by forward direction and forms be separated by spacing between the protuberance of single poor pitch structure or two and increase successively after by forward direction and forms pair poor pitch structures; Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances.
For realizing above-mentioned purpose, the invention allows for a kind of electrokinetic cell that adopts poor pitch pole piece, comprise electric core, location lid, aluminium lid and housing; Said electric core places in the said housing, and electric core top is provided with the location lid, and the side of covering, location is provided with aluminium lid; Said aluminium lid is fixedly connected with housing; Said electric core comprises positive plate, first barrier film, negative plate and second barrier film, and said positive plate and negative plate are poor pitch pole piece, and said poor pitch pole piece comprises coating portion and the uncoated portion that is positioned at coating portion top; The some protuberances of said uncoated portion's die-cut formation in interval; The width of all protuberances equates, the spacing between the two adjacent protuberances increases successively after by forward direction and forms be separated by spacing between the protuberance of single poor pitch structure or two and increase successively after by forward direction and forms pair poor pitch structures, behind whole poor pitch pole piece coiling; The overlapped formation lug of all protuberances, said positive plate, first barrier film, negative plate and second barrier film neatly stack the back coiling and form electric core.
As preferably, the spacing between the said two adjacent protuberances increases successively after by forward direction and forms single poor pitch structure, and the spacing between the two adjacent protuberances becomes the arithmetic progression increase successively.
As preferably, the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4, and the tolerance of said arithmetic progression is 2k π (r1+r2+r3+r4), wherein, and k >=1.
As preferably; Said two be separated by spacings between the protuberance increase successively after by forward direction and form two pitch structures that differ from; And first group of spacing of being separated by between the protuberance becomes first arithmetic progression to increase successively, and second group of spacing of being separated by between the protuberance becomes second arithmetic progression to increase successively.
As preferably, the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4, and the tolerance of said first arithmetic progression and second arithmetic progression is k π (r1+r2+r3+r4), wherein, and k >=1.
Beneficial effect of the present invention: the present invention adopts poor pitch pole piece, make positive plate, barrier film, negative plate stack the oval electric core of type of being wound into after, the overlapped anode ear that forms position of the protuberance of all positive plates; The protuberance of all negative plates is overlapped to form negative electrode lug a position, and this lug and pole piece are structure as a whole, and internal resistance is very little; The battery rapid heat dissipation, and anode ear and negative electrode lug all be positioned at the top of electric core, not only saved the space of electrokinetic cell; Reduced volume; And anode ear is very convenient with being connected of anode and cathode terminals with negative electrode lug, can adopt modes such as screw, riveted joint directly to connect, and not only simplifies the structure and technology; And avoided occurring phenomenons such as rosin joint and disconnected lug, thereby improved the quality of electrokinetic cell.
Characteristic of the present invention and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is the die-cut sketch map of difference pitch pole piece embodiment one among the present invention;
Fig. 2 is the coiling sketch map of difference pitch pole piece embodiment one among the present invention;
Fig. 3 is the die-cut sketch map of difference pitch pole piece embodiment two among the present invention;
Fig. 4 is the coiling sketch map of difference pitch pole piece embodiment two among the present invention;
Fig. 5 is the structural representation of medium power battery of the present invention;
Fig. 6 is the structural representation of the aluminium lid of medium power battery of the present invention;
Fig. 7 is the A-A cutaway view of Fig. 6.
[embodiment]
Embodiment one:
Like Fig. 1, shown in 2, be used for the poor pitch pole piece of electrokinetic cell, comprise coating portion and the uncoated portion that is positioned at coating portion top, the some protuberances of said uncoated portion's die-cut formation in interval; The width of all protuberances equates, the spacing between the two adjacent protuberances increases successively after by forward direction and forms single poor pitch structure, and the spacing between the two adjacent protuberances becomes the arithmetic progression increase successively, and the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4; The tolerance of said arithmetic progression is 2k π (r1+r2+r3+r4), wherein, and k>=1; Under the theory state, fit when reeling fully, k should equal 1; In actual winding process, because the difference of elasticity, k can be slightly larger than 1; Certainly, be the effect that guarantees to reel, the scope of adjustment factor k is generally 1≤k≤1.2.Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances.Aforesaid poor pitch pole piece comprises positive plate and negative plate, and die-cut lug is symmetrically distributed after being wound into electric core on positive plate and the negative plate, and distribution is connected with positive terminal, negative terminal.Aforesaid lug is the monopole ear structure, processes more convenient.To the die-cut employing cutting die cross cutting of the protuberance that forms lug or adopt laser cutting, cutting accurately, efficient is high.Pole piece elder generation spacing as shown in Figure 1 is carried out die-cut, and a is the width (that is: the width of lug) of protuberance among the figure, and b is the spacing between first protuberance and second protuberance; Be the first term of Geometric Sequence, the tolerance of arithmetic progression is x, x=2k π (r1+r2+r3+r4); Spacing between the adjacent protuberance in 1≤k≤1.2, two increases after by forward direction successively, has just formed structure shown in Figure 2 through reeling after the die-cut like this completion; All protuberances overlap fully, form lug, and positive plate, first barrier film, negative plate, the mutual integral body of second barrier film are reeled after stacking; Thereby form independently anode ear and negative electrode lug on the top of pole piece, the coexist structure on pole piece top of anode ear and negative electrode lug has been simplified the structure of battery; Reduced volume, made things convenient for and being connected of anode and cathode terminals.
Like Fig. 5,6, shown in 7, electrokinetic cell comprises that electric core 2, location cover 3, aluminium lid 4 and housing 1; Said electric core 2 places in the said housing 1, and electric core 2 tops are provided with the location and cover 3, and the location is covered 3 tops and is provided with aluminium lid 4; Said aluminium lid 4 is fixedly connected with housing 1, and said electric core 2 comprises positive plate, first barrier film, negative plate and second barrier film, and said positive plate and negative plate are poor pitch pole piece; Said poor pitch pole piece comprises coating portion and the uncoated portion that is positioned at coating portion top, the some protuberances of said uncoated portion's die-cut formation in interval, and the width of all protuberances equates; Spacing between the two adjacent protuberances increases successively after by forward direction and forms singly poor pitch structure; Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances, said positive plate, first barrier film, negative plate and second barrier film neatly stack the back coiling and form electric core 2; Electricity core 2 can place in the aluminum metal case, also can place and form electrokinetic cell in the external packings such as stainless steel casing, plastic casing, aluminum-plastic composite membrane.Like Fig. 6 and shown in Figure 7, the edge ring of said aluminium lid 4 is provided with a circle crimping 41, and said aluminium lid 4 welds together through the inwall of said crimping 41 with said housing 1, this sound construction, and processing technology is simple.The anode ear of aforementioned structure and negative electrode lug can both neatly overlap preposition after reeling; Be convenient to be connected with the anode and cathode terminals of battery; Ways of connecting is after overlapping anode ear and negative electrode lug are put in order respectively, to go out an aperture therebetween, directly is connected with the anode and cathode terminals of battery with screw; Perhaps directly adopt riveted structure to be connected, can also adopt Welding Structure to be connected with the anode and cathode terminals of battery with the anode and cathode terminals of battery.Therefore, the neat overlapping extreme ear structure that this poor pitch forms is applicable to multiple connected mode; Not only the product internal resistance is very little; The battery rapid heat dissipation, and simplify the structure and technology, the volume of electrokinetic cell reduced; Avoid occurring phenomenons such as rosin joint and disconnected lug, thereby improved the quality and the production efficiency of electrokinetic cell.
Embodiment two:
Like Fig. 3, shown in 4, be used for the poor pitch pole piece of electrokinetic cell, comprise coating portion and uncoated portion; Said uncoated portion is the some protuberances of die-cut formation at interval, and the width of all protuberances equates, two be separated by spacings between the protuberance increase successively after by forward direction and form two poor pitch structures; And first group of spacing of being separated by between the protuberance becomes first arithmetic progression to increase successively, and second group of spacing of being separated by between the protuberance becomes second arithmetic progression to increase successively, and the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4; The tolerance of said first arithmetic progression and second arithmetic progression is k π (r1+r2+r3+r4), wherein, and k>=1; Under the theory state, fit when reeling fully, k should equal 1; In actual winding process, because the difference of elasticity, k can be slightly larger than 1; Certainly, be the effect that guarantees to reel, the scope of adjustment factor k is generally 1≤k≤1.2.Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances, this lug is divided into two parts; A part is in the front portion of coiling body; Another part is at the rear portion of coiling body, and so bipolar ear structure can pass through bigger electric current, thereby has promoted the high-rate performance of battery.Aforesaid poor pitch pole piece comprises positive plate and negative plate, and die-cut lug is symmetrically distributed after being wound into electric core on positive plate and the negative plate, and distribution is connected with positive terminal, negative terminal.To the die-cut employing cutting die cross cutting of the protuberance that forms lug or adopt laser cutting, cutting accurately, efficient is high.Pole piece elder generation spacing as shown in Figure 3 is carried out die-cut, and a is the width (that is: the width of lug) of protuberance among the figure, and b is the spacing between first protuberance and second protuberance; Be the first term of first Geometric Sequence, c is the spacing between second protuberance and the 3rd protuberance, is the first term of second Geometric Sequence; The tolerance of two ordered series of numbers is y, y=k π (r1+r2+r3+r4), 1≤k≤1.2; The width of b can guarantee to reel the lug of latter two position can be neatly overlapping, improving convenience and the reliability that is connected with anode and cathode terminals, two be separated by spacing between the protuberance by forward direction after increase successively; Just formed structure shown in Figure 4 through reeling after the die-cut like this completion, all protuberances overlap fully, form lug; Positive plate and negative plate replace overlapping coiling, thereby form independently anode ear and negative electrode lug on the top of pole piece, the coexist structure on pole piece top of anode ear and negative electrode lug; Simplified the structure of battery, made things convenient for and being connected of terminal.
Like Fig. 5,6, shown in 7, electrokinetic cell comprises that electric core 2, location cover 3, aluminium lid 4 and housing 1; Said electric core 2 places in the said housing 1, and electric core 2 tops are provided with the location and cover 3, and the location is covered 3 tops and is provided with aluminium lid 4; Said aluminium lid 4 is fixedly connected with housing 1, and said electric core 2 comprises positive plate, first barrier film, negative plate and second barrier film, and said positive plate and negative plate are poor pitch pole piece; Said poor pitch pole piece comprises coating portion and the uncoated portion that is positioned at coating portion top, the some protuberances of said uncoated portion's die-cut formation in interval, and the width of all protuberances equates; Two be separated by spacings between the protuberance increase successively after by forward direction and form two pitch structures that differ from; Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances, said positive plate, first barrier film, negative plate and second barrier film neatly stack the back coiling and form electric core 2; Electricity core 2 can place in the aluminum metal case, also can place and form electrokinetic cell in the external packings such as stainless steel casing, plastic casing, aluminum-plastic composite membrane.Like Fig. 6 and shown in Figure 7, the edge ring of said aluminium lid 4 is provided with a circle crimping 41, and said aluminium lid 4 welds together through the inwall of said crimping 41 with said housing 1, this sound construction, and processing technology is simple.The anode ear of aforementioned structure and negative electrode lug can both neatly overlap preposition after reeling; Be convenient to be connected with the anode and cathode terminals of battery; Ways of connecting is after overlapping lug (anode ear and negative electrode lug) is put in order, goes out an aperture therebetween, directly is connected with the anode and cathode terminals of battery with screw; Perhaps directly adopt riveted structure to be connected, can also adopt Welding Structure to be connected with the anode and cathode terminals of battery with the anode and cathode terminals of battery.Therefore, the neat overlapping extreme ear structure that this poor pitch forms is applicable to multiple connected mode; Not only the product internal resistance is very little; The battery rapid heat dissipation, and simplify the structure and technology, the volume of electrokinetic cell reduced; Avoid occurring phenomenons such as rosin joint and disconnected lug, thereby improved the quality and the production efficiency of electrokinetic cell.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (6)
1. the poor pitch pole piece that is used for electrokinetic cell; It is characterized in that: comprise coating portion and the uncoated portion that is positioned at coating portion top; Said uncoated portion is the some protuberances of die-cut formation at interval, and the width of all protuberances equates, the spacing between the two adjacent protuberances increases successively after by forward direction and forms be separated by spacing between the protuberance of single poor pitch structure or two and increase successively after by forward direction and forms pair poor pitch structures; Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances.
2. adopt the electrokinetic cell of difference pitch pole piece, it is characterized in that: comprise electric core, location lid, aluminium lid and housing, said electric core places in the said housing; Electricity core top is provided with the location lid; The side of covering, location is provided with aluminium lid, and said aluminium lid is fixedly connected with housing, and said electric core comprises positive plate, first barrier film, negative plate and second barrier film; Said positive plate and negative plate are poor pitch pole piece; Said poor pitch pole piece comprises coating portion and the uncoated portion that is positioned at coating portion top, the some protuberances of said uncoated portion's die-cut formation in interval, and the width of all protuberances equates; Spacing between the two adjacent protuberances increases successively after by forward direction and forms be separated by spacing between the protuberance of single poor pitch structure or two and increase successively after by forward direction and forms pair poor pitch structures; Behind whole poor pitch pole piece coiling, the overlapped formation lug of all protuberances, said positive plate, first barrier film, negative plate and second barrier film neatly stack the back coiling and form electric core.
3. the electrokinetic cell of employing difference pitch pole piece as claimed in claim 2 is characterized in that: the spacing between the said two adjacent protuberances increases successively after by forward direction and forms single poor pitch structure, and the spacing between the two adjacent protuberances becomes the arithmetic progression increase successively.
4. the electrokinetic cell of employing difference pitch pole piece as claimed in claim 3; It is characterized in that: the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4; The tolerance of said arithmetic progression is 2k π (r1+r2+r3+r4), wherein, and k >=1.
5. the electrokinetic cell of employing difference pitch pole piece as claimed in claim 2; It is characterized in that: said two be separated by spacings between the protuberance increase successively after by forward direction and form two pitch structures that differ from; And first group of spacing of being separated by between the protuberance becomes first arithmetic progression to increase successively, and second group of spacing of being separated by between the protuberance becomes second arithmetic progression to increase successively.
6. the electrokinetic cell of employing difference pitch pole piece as claimed in claim 5; It is characterized in that: the thickness of establishing positive plate, first barrier film, negative plate, second barrier film is respectively r1, r2, r3, r4; The tolerance of said first arithmetic progression and second arithmetic progression is k π (r1+r2+r3+r4); Wherein, k >=1.
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| CN2012100347198A CN102544437A (en) | 2012-02-16 | 2012-02-16 | Differential pitch pole piece and power battery adopting same |
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| CN2012100347198A CN102544437A (en) | 2012-02-16 | 2012-02-16 | Differential pitch pole piece and power battery adopting same |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931441A (en) * | 2012-10-31 | 2013-02-13 | 湖北宇隆新能源有限公司 | Method for winding multi-pole-piece lithium battery winding core |
| CN103594736A (en) * | 2012-08-17 | 2014-02-19 | 迪吉亚节能科技股份有限公司 | Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core |
| CN105355983A (en) * | 2015-11-30 | 2016-02-24 | 珠海格力电器股份有限公司 | Lithium ion battery cell and lithium ion battery |
| CN105375060A (en) * | 2015-11-24 | 2016-03-02 | 东莞市特瑞斯电池科技有限公司 | High-rate polymer lithium ion battery and preparation method therefor |
| CN105762325A (en) * | 2016-04-15 | 2016-07-13 | 辉能（天津）科技发展有限公司 | Flexible lithium-ion battery electrode higher in electroconductivity and battery comprising same |
| CN107579284A (en) * | 2017-09-13 | 2018-01-12 | 广东亿鑫丰智能装备股份有限公司 | 360 ° of winding Double-pole lug battery cores and its production technology |
| CN108475826A (en) * | 2015-11-25 | 2018-08-31 | 罗伯特·博世有限公司 | The electrode assembly of interlacing |
| CN109148931A (en) * | 2018-08-14 | 2019-01-04 | 银隆新能源股份有限公司 | A kind of control method, device and battery winding diaphragm |
| CN110085920A (en) * | 2018-01-26 | 2019-08-02 | 上海瑞浦青创新能源有限公司 | Multi pole ears coiled lithium ion battery pole piece and preparation method thereof |
| CN113644389A (en) * | 2020-04-27 | 2021-11-12 | 北京小米移动软件有限公司 | Battery module and manufacturing method thereof |
| WO2023045490A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrode assembly and manufacturing method and system, battery cell, battery, and power utilization apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731619A (en) * | 2005-09-09 | 2006-02-08 | 深圳市邦凯电子有限公司 | Folding type reel and method for manufacturing same folding type reel |
| CN101714624A (en) * | 2009-09-11 | 2010-05-26 | 广州丰江电池新技术股份有限公司 | Spiral-line multi-pole lug lithium ion battery and method for manufacturing same |
| CN202454658U (en) * | 2012-02-16 | 2012-09-26 | 浙江兴海能源科技有限公司 | Differential pitch pole piece and power battery adopting same |
-
2012
- 2012-02-16 CN CN2012100347198A patent/CN102544437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731619A (en) * | 2005-09-09 | 2006-02-08 | 深圳市邦凯电子有限公司 | Folding type reel and method for manufacturing same folding type reel |
| CN101714624A (en) * | 2009-09-11 | 2010-05-26 | 广州丰江电池新技术股份有限公司 | Spiral-line multi-pole lug lithium ion battery and method for manufacturing same |
| CN202454658U (en) * | 2012-02-16 | 2012-09-26 | 浙江兴海能源科技有限公司 | Differential pitch pole piece and power battery adopting same |
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|---|---|---|---|---|
| CN103594736A (en) * | 2012-08-17 | 2014-02-19 | 迪吉亚节能科技股份有限公司 | Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core |
| CN102931441B (en) * | 2012-10-31 | 2015-10-07 | 湖北宇隆新能源有限公司 | A kind of method for winding of multi-pole-piece lithium battery coiling core |
| CN102931441A (en) * | 2012-10-31 | 2013-02-13 | 湖北宇隆新能源有限公司 | Method for winding multi-pole-piece lithium battery winding core |
| CN105375060A (en) * | 2015-11-24 | 2016-03-02 | 东莞市特瑞斯电池科技有限公司 | High-rate polymer lithium ion battery and preparation method therefor |
| CN108475826A (en) * | 2015-11-25 | 2018-08-31 | 罗伯特·博世有限公司 | The electrode assembly of interlacing |
| CN108475826B (en) * | 2015-11-25 | 2022-01-18 | 罗伯特·博世有限公司 | Cross-woven electrode assembly |
| CN105355983B (en) * | 2015-11-30 | 2018-05-11 | 珠海格力电器股份有限公司 | Lithium ion battery cell and lithium ion battery |
| CN105355983A (en) * | 2015-11-30 | 2016-02-24 | 珠海格力电器股份有限公司 | Lithium ion battery cell and lithium ion battery |
| EP3386025A4 (en) * | 2015-11-30 | 2019-07-10 | Gree Electric Appliances, Inc. of Zhuhai | Lithium-ion battery cell and lithium-ion battery |
| AU2016364095B2 (en) * | 2015-11-30 | 2020-02-06 | Gree Electric Appliances, Inc. Of Zhuhai | Lithium-ion battery cell and lithium-ion battery |
| CN105762325A (en) * | 2016-04-15 | 2016-07-13 | 辉能（天津）科技发展有限公司 | Flexible lithium-ion battery electrode higher in electroconductivity and battery comprising same |
| CN107579284A (en) * | 2017-09-13 | 2018-01-12 | 广东亿鑫丰智能装备股份有限公司 | 360 ° of winding Double-pole lug battery cores and its production technology |
| CN110085920A (en) * | 2018-01-26 | 2019-08-02 | 上海瑞浦青创新能源有限公司 | Multi pole ears coiled lithium ion battery pole piece and preparation method thereof |
| CN109148931A (en) * | 2018-08-14 | 2019-01-04 | 银隆新能源股份有限公司 | A kind of control method, device and battery winding diaphragm |
| CN113644389A (en) * | 2020-04-27 | 2021-11-12 | 北京小米移动软件有限公司 | Battery module and manufacturing method thereof |
| WO2023045490A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrode assembly and manufacturing method and system, battery cell, battery, and power utilization apparatus |
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Application publication date: 20120704 |