CN201812891U - Lithium battery - Google Patents
Lithium battery Download PDFInfo
- Publication number
- CN201812891U CN201812891U CN2010205035625U CN201020503562U CN201812891U CN 201812891 U CN201812891 U CN 201812891U CN 2010205035625 U CN2010205035625 U CN 2010205035625U CN 201020503562 U CN201020503562 U CN 201020503562U CN 201812891 U CN201812891 U CN 201812891U
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium battery
- wound
- negative electrode
- plate
- 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.)
- Expired - Lifetime
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
-
- 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
Abstract
The utility model provides a lithium battery, which comprises two or more battery wound cores and a flexible packaging casing for packaging the battery wound cores. Each battery wound core consists of an anode plate, a diaphragm and a cathode plate which are stacked prior to being wound to form the battery wound core, and an anode lug and a cathode lug are respectively arranged on each anode plate and each cathode plate. The lithium ion battery is formed by stacking together the battery wound cores which are formed by independent winding, the anode lugs on the battery wound cores are overlapped in position and welded together after being wound, and the cathode lugs on the battery wound cores are overlapped in position and welded together after being wound. The lithium battery is compatible to production process of a traditional lithium battery in a wound structure, guarantees high production efficiency, reduces internal resistance, and improves magnification performance.
Description
Technical field
The utility model relates to a kind of lithium battery, relates in particular to the multipole ear lithium battery of a kind of multireel core.
Background technology
Lithium battery is widely used in numerous areas because of operating voltage height, outstanding feature such as specific energy is big, self discharge is little.Structure, performance and manufacturing process at lithium battery are also updated.
At present, people are when the design high power lithium battery, and majority adopts laminated structures.Because electric each layer of core pole piece of laminated structure lithium battery has a lug, cause lug quantity many, each layer lug is connected in parallel, though make the internal resistance of cell diminish, help high power discharge, but this class formation battery exists lamination complex process, inefficiency, is not easy to realize the problem of automated production.
And if adopt traditional takeup type structure, though takeup type structure lithium battery technology is brief, the efficient height is realized automated production easily, its internal resistance is bigger than normal again, is difficult to reach the requirement of high power discharge.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, provides that a kind of preparation technology is simple, efficient is high, internal resistance is less, and the higher lithium battery of high rate performance.
Above-mentioned purpose of the present utility model is achieved by following scheme:
Existing coiling type lithium battery comprises the flexible package shell of battery roll core and packaged battery volume core, and battery roll core is reeled by the stacked back of positive plate, barrier film and negative plate and formed, and is respectively equipped with anode ear and negative electrode lug on positive plate and the negative plate.
The utility model improves on the basis of existing coiling type lithium battery structure, its improvement project is that stacked and two kinds of structures of takeup type are combined, thereby obtain a kind of lithium battery, this lithium battery is stacked together with the battery roll core that two or more independent coilings form, location overlap welded together after anode ear on each battery roll core was reeled, and location overlap welded together after the negative electrode lug on each battery roll core was reeled.
The positive plate of above-mentioned lithium battery is provided with two or more anode ears, also is provided with two or more negative electrode lugs on its negative plate.
The anode ear of above-mentioned lithium battery and negative electrode lug are on positive plate and negative plate and are not equally spaced.
The anode ear of above-mentioned lithium battery and negative electrode lug are positioned at the homonymy or the both sides of battery roll core, and preferred anode ear and negative electrode lug are positioned at the both sides of battery roll core, and the both sides that anode ear and negative electrode lug are positioned at battery roll core have made things convenient for the series connection and the parallel connection of battery, are convenient to install.
Compared with prior art, the utlity model has following beneficial effect:
Lithium battery of the present utility model, the structure that it adopts a plurality of takeup type volume sandwich layers to stack, and on the positive plate of rolling up core and negative plate, be respectively equipped with a plurality of anode ears and negative electrode lug, reel back location overlap and welding together respectively of anode ear and negative electrode lug, this structure not only makes the production technology compatibility of the utility model lithium battery and traditional takeup type structure lithium battery, guarantee the high efficiency of producing, and reduced the internal resistance of battery, improved the high rate performance of battery.
Description of drawings
Fig. 1 is the utility model embodiment one positive plate cross section structure schematic diagram;
Fig. 2 is embodiment one a negative plate cross section structure schematic diagram;
Fig. 3 is embodiment one a volume sandwich layer overlapping state internal structure schematic diagram;
Fig. 4 is embodiment one a cell package state plan structure schematic diagram;
Fig. 5 is the utility model embodiment two volume sandwich layer overlapping state internal structure schematic diagrames;
Fig. 6 is embodiment two cell package state plan structure schematic diagrames;
Fig. 7 is embodiment two perspective view.
Embodiment
For the ease of those skilled in the art's understanding, the utility model structural principle is further described in detail below in conjunction with embodiment and accompanying drawing:
Embodiment one:
Shown in accompanying drawing 1～4, what present embodiment disclosed is that a kind of preparation technology is simple, efficient is high, internal resistance is less, and the higher lithium battery of high rate performance.Described lithium battery comprises the flexible package shell 2 of battery roll core 1 and packaged battery volume core 1, and described battery roll core 1 is reeled and formed by positive plate 3, barrier film, negative plate 4 stacked backs, is respectively equipped with anode ear 31 and negative electrode lug 41 on positive plate 3 and negative plate 4.
Wherein, this lithium ion battery is that two or more battery roll cores 1 of forming of reeling separately are stacked together, the positive plate 3 of battery roll core 1 is provided with two or more anode ears 31, location overlap welded together after anode ear 31 on each battery roll core 1 was reeled, weld together for the ease of a plurality of anode ears 31 back location overlaps of reeling, described anode ear 31 is at positive plate 3 and is not equally spaced; The negative plate 4 of battery roll core 1 is provided with two or more negative electrode lugs 41, location overlap welded together after negative electrode lug 41 on each battery roll core 1 was reeled, weld together for the ease of a plurality of negative electrode lugs 41 back location overlaps of reeling, described negative electrode lug 41 is at negative plate 4 and is not equally spaced.
The series connection of battery for convenience and being installed in parallel, anode ear 31 and negative electrode lug 41 are positioned at the both sides of battery roll core 1.
The utility model lithium battery adopts a plurality of takeup type volume sandwich layers to stack, and on the positive plate 3 of rolling up core and negative plate 4, be respectively equipped with a plurality of anode ears 31 and negative electrode lug 41, reel back location overlaps and welding together respectively of anode ear 31 and negative electrode lug 41, this structure not only makes the production technology compatibility of the utility model lithium battery and traditional takeup type structure lithium battery, guaranteed the high efficiency of producing, and reduced the internal resistance of battery, improved the high rate performance of battery.
Embodiment two:
Shown in accompanying drawing 5～7, structure proximate among lithium battery that present embodiment disclosed and the embodiment one, difference is that anode ear 31 and negative electrode lug 41 positions are positioned at homonymy, this structure can reach the reduction internal resistance of cell equally, improves the effect of battery high rate performance.
The foregoing description only is a preferred implementation of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model design, any conspicuous replacement all should fall within the protection range of the present utility model.
Claims (5)
1. lithium battery, the flexible package shell that comprises battery roll core and packaged battery volume core, described battery roll core is reeled by the stacked back of positive plate, barrier film and negative plate and is formed, be respectively equipped with anode ear and negative electrode lug on described positive plate and the negative plate, it is characterized in that: this lithium ion battery is that two or more battery roll cores of forming of reeling separately are stacked together, location overlap welded together after anode ear on each battery roll core was reeled, and location overlap welded together after the negative electrode lug on each battery roll core was reeled.
2. lithium battery according to claim 1 is characterized in that: described positive plate is provided with two or more anode ears, and described negative plate is provided with two or more negative electrode lugs.
3. lithium battery according to claim 2 is characterized in that: described anode ear is at positive plate and is not equally spaced, and described negative electrode lug is on negative plate and is not equally spaced.
4. lithium battery according to claim 1 is characterized in that: described anode ear and negative electrode lug are positioned at the homonymy or the both sides of battery roll core.
5. lithium battery according to claim 4 is characterized in that: described anode ear and negative electrode lug are positioned at the both sides of battery roll core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205035625U CN201812891U (en) | 2010-08-20 | 2010-08-20 | Lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205035625U CN201812891U (en) | 2010-08-20 | 2010-08-20 | Lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812891U true CN201812891U (en) | 2011-04-27 |
Family
ID=43895829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205035625U Expired - Lifetime CN201812891U (en) | 2010-08-20 | 2010-08-20 | Lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812891U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010473A1 (en) * | 2011-07-15 | 2013-01-24 | 深圳市吉阳自动化科技有限公司 | Method of winding cell of lithium ion battery |
| CN105244506A (en) * | 2015-10-15 | 2016-01-13 | 青岛领军节能与新材料研究院 | Lithium-ion battery material and lithium-ion battery structure and preparation method of lithium-ion battery material |
| CN109273758A (en) * | 2017-07-17 | 2019-01-25 | 通用汽车环球科技运作有限责任公司 | Multi pole ears electrode with electric current Optimization-type Electronic barriers and include its battery |
-
2010
- 2010-08-20 CN CN2010205035625U patent/CN201812891U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010473A1 (en) * | 2011-07-15 | 2013-01-24 | 深圳市吉阳自动化科技有限公司 | Method of winding cell of lithium ion battery |
| CN105244506A (en) * | 2015-10-15 | 2016-01-13 | 青岛领军节能与新材料研究院 | Lithium-ion battery material and lithium-ion battery structure and preparation method of lithium-ion battery material |
| CN109273758A (en) * | 2017-07-17 | 2019-01-25 | 通用汽车环球科技运作有限责任公司 | Multi pole ears electrode with electric current Optimization-type Electronic barriers and include its battery |
| CN109273758B (en) * | 2017-07-17 | 2022-02-11 | 通用汽车环球科技运作有限责任公司 | Multi-tab electrode with current optimized electron barrier and battery comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206332097U (en) | A kind of secondary cell battery core | |
| CN102569901B (en) | A kind of lithium ion battery, core of lithium ion cell and preparation method thereof | |
| CN2909544Y (en) | Winding lithium battery electro-chip structure | |
| CN101901934A (en) | Coiled laminate square lithium-ion battery cell and preparation method thereof | |
| CN101656330A (en) | Method for making lithium-ion battery cells | |
| WO2017092520A1 (en) | Lithium-ion battery cell and lithium-ion battery | |
| CN210443627U (en) | Bendable and foldable battery core and battery | |
| CN201556685U (en) | Super capacity cell | |
| CN105742721A (en) | High-energy-ratio low-internal-resistance cylindrical lithium ion battery | |
| CN202172108U (en) | Coiled core structure for lithium ion battery | |
| CN202454681U (en) | High-efficiency lithium ion battery | |
| CN201812891U (en) | Lithium battery | |
| CN102208679A (en) | Wound continuous laminated square lithium ion power battery | |
| CN102024990A (en) | Method for manufacturing cells of power lithium ion batteries | |
| CN202384439U (en) | Lithium ion battery winding structure | |
| CN209119243U (en) | A kind of stacked wound lithium-ion battery structure | |
| CN202308207U (en) | Multi-pole-piece winding-type cell and square flexible-package lithium battery | |
| CN203774408U (en) | Power energy-storage polymer lithium ion battery | |
| CN202308205U (en) | Lithium ion battery pole core and lithium ion battery | |
| CN201741765U (en) | Battery cell of power-type lithium ion battery | |
| CN203367419U (en) | Wound electrode plate and lithium ion battery formed by winding same | |
| CN103346353B (en) | A kind of battery battery core, its manufacture method and battery thereof | |
| CN201741762U (en) | High-capacity high-power lithium ion battery | |
| CN202339959U (en) | Multi-winding core lithium ion battery | |
| CN202601790U (en) | Laminated lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |