CN205646032U - High energy compares, cylindrical lithium ion battery of low internal resistance - Google Patents
High energy compares, cylindrical lithium ion battery of low internal resistance Download PDFInfo
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- CN205646032U CN205646032U CN201620365656.8U CN201620365656U CN205646032U CN 205646032 U CN205646032 U CN 205646032U CN 201620365656 U CN201620365656 U CN 201620365656U CN 205646032 U CN205646032 U CN 205646032U
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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 utility model discloses a high energy compares, cylindrical lithium ion battery of low internal resistance, including electric core, the electricity core includes positive plate, negative pole piece, interior unfamiliar and outer diaphragm, the positive plate with blank paper tinsel district as the conductive electrode ear on the negative pole piece lies in respectively the both ends of electricity core, interior unfamiliar the dressing of negative pole piece district outer diaphragm with the dressing district of positive plate laminates in proper order and convolutes the electricity core, the flat full utmost point ear that forms is rubbed through the supersound respectively in the both ends of electricity core. The utility model discloses a conductive electrode ear regard as with the blank paper tinsel district of positive plate and negative pole piece to high energy compares, cylindrical lithium ion battery of low internal resistance's positive negative pole, adopts full utmost point ear supersound to rub the fine and close compact full utmost point ear that electrode that flat design made electric core both ends formed the follow -up laser welding of being convenient for, greatly reduced the internal resistance of battery, promoted the performance of battery, productivity efficiency has been taken into account to adoption coiling mode, whole roll of core design is simple, and the electrical property is good, and the productivity is high, and the practicality is strong.
Description
Technical field
This utility model belongs to technical field of lithium batteries, particularly relates to a kind of high energy ratio, the cylindrical lithium ion battery of low internal resistance.
Background technology
At present, the core of cylindrical lithium ion battery is mainly the takeup type core of monopole ear or multi pole ears and stacked core.Although the takeup type core core of monopole ear or multi pole ears capacity efficiency when winding is high, but by core self lug number and area constraints, there is the electrical property aspect inferior positions such as mental retardation ratio, high internal resistance；Although stacked core has an advantage of the aspect of performances such as high energy ratio, low internal resistance, but when having that capacity efficiency is low, number of laminations increases, foil turns the problems such as welding electrode ear difficulty great Yi rosin joint.A kind of the high energy ratio of core winding efficiency and battery electrical property, the cylindrical lithium ion battery of low internal resistance is taken into account therefore, it is necessary to develop.
Utility model content
The purpose of this utility model is to provide a kind of high energy ratio, the cylindrical lithium ion battery of low internal resistance.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of high energy ratio, the cylindrical lithium ion battery of low internal resistance, including battery core, described battery core includes positive plate, negative plate, inner septum and outer barrier film, on described positive plate and described negative plate, the blank foil district as conduction lug lays respectively at the two ends of described battery core, the dressing district of described inner septum, the dressing district of described negative plate, described outer barrier film and described positive plate fits successively and is wound into described battery core, and the full lug of flat formation is rubbed through ultrasonic respectively in the two ends of described battery core.
Preferably, the dressing district of described negative plate is positioned at the centre position of described inner septum, and the dressing district of described positive plate is positioned at the centre position of described outer barrier film.
Preferably, the width in the blank foil district of described positive plate is 2 mm-10 mm, and the width in the blank foil district of described negative plate is 2 mm-10 mm.
Preferably, 0.5mm-2mm is rubbed by ultrasonic square formula of rubbing by the two ends full lug of conduction of described battery core respectively in the blank foil district of described positive plate and the blank foil district of described negative plate.
Preferably, described battery core use determine diameter wind termination mode wind.
Compared with prior art, the beneficial effects of the utility model are: a kind of high energy ratio of the present utility model, low internal resistance the both positive and negative polarity of cylindrical lithium ion battery using the blank foil district of positive plate and negative plate as conduction lug, use the ultrasonic full lug rubbing the compact that flat design makes the electrode formation at battery core two ends be easy to post laser welding of full lug, greatly reduce the internal resistance of battery, improve the performance of battery, use winding method, take into account capacity efficiency；Whole core design is simple, and electrical property is good, and productivity is high, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Detailed description of the invention
Embodiment:
As shown in Figure 1, a kind of high energy ratio of the present embodiment, the cylindrical lithium ion battery of low internal resistance, including battery core, battery core includes positive plate 1, negative plate 2, inner septum 3 and outer barrier film 4, on positive plate 1 and negative plate 2, the blank foil district 11 and 21 as conduction lug lays respectively at the two ends of battery core, and the employing of fit successively of the dressing district 12 of inner septum 3, the dressing district 22 of negative plate 2, outer barrier film 4 and positive plate 1 is determined diameter and wound termination mode and be wound into battery core.The width in the blank foil district 11 of positive plate 1 is 2 mm-10 mm.The width in the blank foil district 21 of negative plate 2 is 2 mm-10 mm.The two ends of battery core flat make the blank foil district 11 of positive plate 1 and the blank foil district 21 of negative plate 2 rub 0.5mm-2mm respectively to form full lug through ultrasonic rubbing respectively.The dressing district 22 of negative plate 2 is positioned at the centre position of inner septum 3, and the dressing district 12 of positive plate 1 is positioned at the centre position of outer barrier film 4.
During application the present embodiment, positive plate 1 and negative plate 2 use continuously coating, and the blank foil of convenient width is respectively stayed at two ends in dressing district 12 and 22, toasted, roll, cut into front end and stay the blank foil district 11 and 21 of 2 mm-10 mm.Adjust up-coiler, negative plate 2 is added after inner septum 3 first pre-roll 2 circle, the dressing district 22 of negative plate 2 is placed in the middle of inner septum 3, the blank foil district 21 of negative plate 2 extends along the left side of the width of inner septum 3, inner septum 3, outer barrier film 4 adds positive plate 1 after enclosing with negative plate 2 one roll set 1.5, the dressing district 12 of positive plate 1 is placed in the middle of outer barrier film 4, the blank foil district 11 of positive plate 1 extends along the right side of the width of outer barrier film 4, with negative plate 2, inner septum 3, outer barrier film 4 winds together, finally terminate winding determining diameter mode, cut off barrier film and electrode plates, again by the blank foil district 11 and 21 at the two ends of battery core by ultrasonic rub to divide equally do not rub 0.5mm-2mm and form full lug, i.e. can get high energy ratio, the cylindrical lithium ion battery of low internal resistance.Negative plate 2 is for the negative pole of battery, when battery electrical property is tested between its layer of charcoal of lithium ion deintercalation, inner septum 3 and outer barrier film 4 are used for isolating positive and negative electrode and prevent battery internal short-circuit, and positive plate 1 is for the positive pole of battery, when battery electrical property is tested between the main material such as its LiFePO4 of the deintercalation of lithium ion.
A kind of high energy ratio of the present embodiment, low internal resistance the both positive and negative polarity of cylindrical lithium ion battery using the blank foil district 11 and 21 of positive plate 1 and negative plate 2 as conduction lug, use the ultrasonic full lug rubbing the compact that flat design makes the electrode formation at battery core two ends be easy to post laser welding of full lug, greatly reduce the internal resistance of battery, improve the performance of battery, use winding method, take into account capacity efficiency；Whole core design is simple, and electrical property is good, and productivity is high, practical.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, on the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (5)
1. a high energy ratio, the cylindrical lithium ion battery of low internal resistance, including battery core, it is characterized in that: described battery core includes positive plate, negative plate, inner septum and outer barrier film, on described positive plate and described negative plate, the blank foil district as conduction lug lays respectively at the two ends of described battery core, the dressing district of described inner septum, the dressing district of described negative plate, described outer barrier film and described positive plate fits successively and is wound into described battery core, and the full lug of flat formation is rubbed through ultrasonic respectively in the two ends of described battery core.
A kind of high energy ratio the most according to claim 1, the cylindrical lithium ion battery of low internal resistance, it is characterised in that: the dressing district of described negative plate is positioned at the centre position of described inner septum, and the dressing district of described positive plate is positioned at the centre position of described outer barrier film.
A kind of high energy ratio the most according to claim 1, the cylindrical lithium ion battery of low internal resistance, it is characterised in that: the width in the blank foil district of described positive plate is 2 mm-10 mm, and the width in the blank foil district of described negative plate is 2 mm-10 mm.
A kind of high energy ratio the most according to claim 3, the cylindrical lithium ion battery of low internal resistance, it is characterised in that: 0.5mm-2mm is rubbed by ultrasonic square formula of rubbing by the two ends full lug of conduction of described battery core respectively in the blank foil district of described positive plate and the blank foil district of described negative plate.
A kind of high energy ratio the most according to claim 1, the cylindrical lithium ion battery of low internal resistance, it is characterised in that: the employing of described battery core is determined diameter winding termination mode and is wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620365656.8U CN205646032U (en) | 2016-04-27 | 2016-04-27 | High energy compares, cylindrical lithium ion battery of low internal resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620365656.8U CN205646032U (en) | 2016-04-27 | 2016-04-27 | High energy compares, cylindrical lithium ion battery of low internal resistance |
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| CN205646032U true CN205646032U (en) | 2016-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742721A (en) * | 2016-04-27 | 2016-07-06 | 国轩新能源（苏州）有限公司 | High-energy-ratio low-internal-resistance cylindrical lithium ion battery |
| CN108808114A (en) * | 2018-05-29 | 2018-11-13 | 江苏海基新能源股份有限公司 | A kind of rectangular multi pole ears wound lithium-ion battery assembly method |
| CN111725552A (en) * | 2020-08-05 | 2020-09-29 | 广州鹏辉能源科技股份有限公司 | Button cell and manufacturing method thereof |
-
2016
- 2016-04-27 CN CN201620365656.8U patent/CN205646032U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742721A (en) * | 2016-04-27 | 2016-07-06 | 国轩新能源（苏州）有限公司 | High-energy-ratio low-internal-resistance cylindrical lithium ion battery |
| CN108808114A (en) * | 2018-05-29 | 2018-11-13 | 江苏海基新能源股份有限公司 | A kind of rectangular multi pole ears wound lithium-ion battery assembly method |
| CN111725552A (en) * | 2020-08-05 | 2020-09-29 | 广州鹏辉能源科技股份有限公司 | Button cell and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
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Address after: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric GuoXuan new energy technology (Suzhou) Co.,Ltd. Address before: No.100 Yuanfeng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: GUOXUAN NEW ENERGY (SUZHOU) Co.,Ltd. |