CN201364930Y - Lithium ion battery and battery pack - Google Patents
Lithium ion battery and battery pack Download PDFInfo
- Publication number
- CN201364930Y CN201364930Y CNU2008202074828U CN200820207482U CN201364930Y CN 201364930 Y CN201364930 Y CN 201364930Y CN U2008202074828 U CNU2008202074828 U CN U2008202074828U CN 200820207482 U CN200820207482 U CN 200820207482U CN 201364930 Y CN201364930 Y CN 201364930Y
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- lithium ion
- ion battery
- flexible coupling
- electrode terminal
- sheet
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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 provides a lithium ion battery which comprises an outer shell, a cover plate and an electric core, wherein the electric core consists of a positive plate, a membrane and a negative plate, and is arranged in the outer shell; electrode lugs are arranged on the electric core; the lithium ion battery also comprises flexible connecting sheets and electric terminals; the electric terminals are arranged on the cover plate; the electrode terminals pass through the cover plate to be connected with the electric lugs through the flexible connecting sheets; the flexible connecting sheets have bending parts; and fracture preventing components are arranged at the bending parts of the flexible connecting sheets, and are used for preventing the fracture of the flexible connecting sheets at the bending parts. Because of the arrangement of the fracture preventing components at the bending parts of the flexible connecting sheets, the connection of the flexible connecting sheets is safe and reliable, and the safety of the lithium ion battery is improved.
Description
Technical field
The present invention relates to the lithium ion battery field, relate to a kind of power-type lithium ion battery more specifically.
Background technology
In common lithium ion battery, prior art has had uses the sheet that is flexible coupling to connect lug and leading-out terminal.CN200420034061 discloses a kind of lithium ion battery, and open in its claim 7, the current-carrying part of positive and negative plate links to each other with the positive and negative electrode pole of battery by brace, and described brace is soft brace.
In lithium ion battery, usually also need to be used as with brace the bridge of Battery Pole Core and electrode, conventional batteries can satisfy the demands with individual layer, thin sheet metal because electric current is little, so there is not technological problems in brace when technology such as realization bending.And the large-sized power battery generally all has the high current charge-discharge demand, and conventional monolayers, thin sheet metal just can not meet the demands, thus need thicker sheet metal, but bending is relatively more difficult again, generally adopts the more suitable of layer flexible/soft.But this soft multilayer brace is in the long-term use of electrokinetic cell, because the factors such as bump, collision that are subjected to of battery, has still that its bending part ruptures easily, and leading-out terminal junction problem such as come off.
As shown in Figure 1, the sheet 3 that is flexible coupling of passing through of the lug 4 of lithium ion battery and electrode terminal 2 is connected in the prior art, and electrode terminal 2 is arranged in the cover plate 1, because the many places bending of the sheet that is flexible coupling, and the angle too small at bending part θ angle makes the sheet that is flexible coupling fracture easily.
Summary of the invention
The technical problem of solution of the present invention is to be power-type lithium ion battery in long-term the use, and the sheet that is flexible coupling fractures easily, the problem of internal short-circuit of battery occurs, and provides a kind of sheet that is flexible coupling to connect safer power lithium-ion battery.
Technical scheme of the present invention is:
A kind of lithium ion battery comprises shell, cover plate, electric core,
Described electric core is made up of positive plate, barrier film, negative plate, and described electric core is arranged in the described shell, has lug on the described electric core;
Wherein, described lithium ion battery also comprises be flexible coupling sheet and electrode terminal,
Described electrode terminal is arranged on the described cover plate, and described electrode terminal passes described cover plate and is connected with described lug by the sheet that is flexible coupling;
The described sheet that is flexible coupling has bending, and the bending part of the described sheet that is flexible coupling is provided with the anti-parts that fracture, and is used to prevent that the described sheet bending part that is flexible coupling from fractureing.
The present invention also provides a kind of power battery pack, comprises a plurality of monomer lithium ion batteries, and described a plurality of monomer lithium ion batteries connect by series, parallel or series-parallel connection, and described a plurality of monomer lithium ion batteries adopt lithium ion battery provided by the invention.
The advantage of power-type lithium ion battery provided by the invention is, be provided with the anti-parts that fracture by bending part at the sheet that is flexible coupling, play the effect that struts the sheet bending part bending both sides that are flexible coupling, make the bending angle of the sheet that is flexible coupling be unlikely to too small situation to occur, thereby avoid it to fracture.Even it is normal that collide for a long time, rock etc. can both guarantee that inside battery connects, the fail safe that improves battery.
Description of drawings
Fig. 1 is the be flexible coupling schematic diagram of connected mode of sheet of lithium ion battery in the prior art.
Fig. 2 is the be flexible coupling schematic diagram of a kind of execution mode that sheet connects of lithium ion battery according to the present invention.
Fig. 3 is the be flexible coupling schematic diagram of another execution mode that sheet connects of lithium ion battery according to the present invention.
Fig. 4 is the be flexible coupling schematic diagram of another embodiment that sheet connects of lithium ion battery according to the present invention.
Fig. 5 is the schematic diagram of the anti-parts that fracture of lithium ion battery according to the present invention.
Fig. 6 is the overall schematic of the lithium ion battery according to the present invention.
Fig. 7 is the electric core schematic diagram of the lithium ion battery according to the present invention.
Fig. 8 is the electrode terminal schematic diagram according to lithium ion battery of the present invention.
Fig. 9 is according to sealed structural representation in the embodiment of lithium ion battery of the present invention.
Figure 10 is the coiling schematic diagram according to the sheet that is flexible coupling of lithium ion battery of the present invention.
Figure 11 is according to power battery pack schematic diagram of the present invention.
Embodiment
Come below with reference to the accompanying drawings the specific embodiment of the present invention is elaborated.
By general knowledge as can be known, anodal part is connected according to its polarity with the negative pole part among the present invention.
The invention provides a kind of lithium ion battery, comprise shell 11, cover plate 1, electric core 10, described electric core 10 is made up of positive plate, barrier film, negative plate, and described electric core 10 is arranged in the described shell 11, has lug 4 on the described electric core 10; Wherein, described lithium ion battery also comprises be flexible coupling sheet 3 and electrode terminal 2, and described electrode terminal 2 is arranged on the described cover plate 1, and described electrode terminal 2 passes described cover plate 1 and is connected with described lug 4 by the sheet 3 that is flexible coupling; The described sheet 3 that is flexible coupling has bending, and the described bending part that is flexible coupling sheet 3 is provided with the anti-parts 5 that fracture, and is used to prevent that described sheet 3 bending parts that are flexible coupling from fractureing.
The described anti-parts 5 that fracture comprise tension member 6 and connector 7, and described tension member 6 is connected with described connector 7 or directly is one, and described tension member 6 provides described sheet 3 bending parts that are flexible coupling to strut tension force, described connector 7 fixing described tension members 6.The described anti-parts 5 that fracture are located at the bending part of the described sheet 3 that is flexible coupling, and described connector is connected with electrode terminal, lug, shell or cover plate, fixing described tension member.Described tension member 6 is selected from a kind of in annulus, cylinder, rectangular post, triangular prism, polygon post, spherical, a plurality of spherical phase disjunctor; It is a kind of in one rectangular, plates, the blocks that described connector 7 is selected from.
A kind of a kind of embodiment of the anti-parts 5 that fracture shown in Figure of description 5, described tension member 6 is an annulus, and described connector 7 is one rectangular, and described annulus 6 rectangularly is connected or directly is one with described; Described annulus is located at the described sheet bending part that is flexible coupling, stacked being connected on the described electrode terminal 2 of described rectangular and described sheet 3 one ends that are flexible coupling, the described rectangular outermost layer that is connected the described sheet 3 that is flexible coupling.
Shown in Figure of description 3, the described sheet 3 that is flexible coupling is connected described lug 4 outsides, and the described outside refers to that with described electrode terminal 2 be the center, away from a side of described electrode terminal 2.So connect, lug is positioned at the sheet bending part inboard that is flexible coupling, and therefore the actual effect of also having played tension member just can not be provided with anti-bending parts herein.
Shown in Figure of description 5, comprise at least two electric cores 10 in the described shell 11, and corresponding with it at least two sheets 3 that are flexible coupling, described electric core 10 two ends have lug 4, and described lug 4 is connected with described electrode terminal 2 by the described sheet 3 that is flexible coupling.
Described electrode terminal 2 be arranged between described lug 4 and the lug 4 ' or described lug 4 and shell 9 between corresponding cover plate 1 position, gap, described sheet 3 one ends that are flexible coupling link to each other with described lug 4 respectively, the other end is connected to described electrode terminal 2 one sides.
Described positive plate, negative plate has dressing district and dressing district not, evenly be coated with active material in the dressing district, a not dressing district with certain width is reserved or scraped to an end parallel with the pole piece length direction, anode ear, negative electrode lug directly is not laminated in the dressing district by one deck at least, anode ear like this, negative electrode lug and place, dressing district are provided with the logical area in bigger electric current road, can prevent that battery is in the large current density electric process or under the situation of abuse, heat is at anode ear, negative electrode lug and auxiliary material district intersection are assembled in a large number, have improved the heavy-current discharge performance and the fail safe of battery.
Shown in Figure of description 8, described electrode terminal 2 is provided with a groove 8 through described electrode terminal 2 surfaces, described groove 8 fractures after being subjected to the external force effect.
Shown in Figure of description 9, described electrode terminal 2 is made one with described cover plate 1, comprises cover plate 1, tubular rivet 12, insulating sealer 9, electrode terminal 2; Described cover plate 1 is provided with through hole, and tubular rivet 12 is arranged on the cover plate 1, and through hole communicates with the hollow space of tubular rivet 12; Described insulating sealer 9 is located in the tubular rivet 12, and electrode terminal 2 passes from insulating sealer 9, and the described insulating sealer 9 of tubular rivet 12 clampings is with enclosed electrode terminal 2; Insulating sealer 9 exceeds tubular rivet 12 tops and encases tubular rivet 12 tops formation turnup structure.
The described sheet 3 that is flexible coupling is formed by the multiple layer metal foil layer is folded, and the thickness in monolayer of described tinsel is 0.005mm～0.2mm.The described sheet 3 that is flexible coupling also can be reeled by metal forming and be formed, and invention is preferably reeled by metal forming and formed, and the thickness in monolayer of described tinsel is 0.005mm～0.2mm.
The present invention also provides a kind of power battery pack, comprises a plurality of monomer lithium ion batteries, and described a plurality of monomer lithium ion batteries connect by series, parallel or series-parallel connection, and described monomer lithium ion battery is according to lithium ion battery of the present invention.
Connect described in the present invention and be selected from a kind of in ultrasonic bonding, resistance welded, the laser welding.
With reference to the accompanying drawings shown in 2, a kind of lithium ion battery that a kind of embodiment of the present invention provides, comprise shell 11, cover plate 1, by positive plate, barrier film, the electric core 10 that negative plate is formed, described electric core 10 is arranged in the described shell 11, described electric core 10 two ends are provided with lug 4, described lithium ion battery also comprises be flexible coupling sheet 3 and electrode terminal 2, described electrode terminal 2 is arranged on the described cover plate 1, the end that described electrode terminal 2 passes described cover plate 1 is connected with described lug 4 by the sheet 3 that is flexible coupling, the described sheet 3 that is flexible coupling has bending, and the described bending part that is flexible coupling sheet 3 is provided with the anti-parts 5 that fracture, and is used to prevent that described sheet 3 bending parts that are flexible coupling from fractureing.
The described sheet 3 that is flexible coupling is connected described lug 4 outsides, and the described outside refers to that with described electrode terminal 2 be the center, away from a side of described electrode terminal 2.As Fig. 2, be the center with electrode terminal 2, the sheet 3 that is flexible coupling is connected the outside of lug 4, and the other end is walked around electrode terminal 2 and is connected the same side of electrode terminal 2 with all the other be flexible coupling sheets 3 and the anti-parts 5 that fracture.So connect, lug 4 is positioned in the middle of the bending part, also can play the effect that struts the sheet 3 bending part angles that are flexible coupling, and prevents its bending part angle too small and fractures.
The described anti-parts 5 that fracture are drawn together an annulus 6 and rectangular 7, and described annulus 6 is connected with described rectangular 7 or directly is one; Described annulus (6) is located at the bending part of the described sheet that is flexible coupling (3), described rectangular 7 with the described sheet 3 stacked sides that are connected electrode terminal 2 that are flexible coupling, described rectangular 7 are connected the outermost layer of the sheet 3 that is flexible coupling.The annulus 6 and rectangular 7 of the described anti-parts 5 that fracture can be made into integration, and also can be that both welding are made.
In the present embodiment, comprise two electric cores 10 in the described shell 11, and two corresponding with it sheets 3 that are flexible coupling, described electrode terminal 2 is located at cover plate 1 position of gap correspondence between two lugs 4, described sheet 3 one ends that are flexible coupling link to each other with lug 4 respectively, the other end is connected to electrode terminal 2 one sides, and the described anti-parts 5 that fracture are arranged at the side that the described sheet 3 that is flexible coupling is connected with described electrode terminal 2.Electric core 10 numbers that battery comprises in the present embodiment are two, but the present invention is not limited to two, can comprise more a plurality of electric cores 10.
As shown in Figure 8, described electrode terminal 2 is provided with a groove 8 through described electrode terminal 2 surfaces, described groove 8 safety effect that ruptured after being subjected to mechanical external force.So, groove 8 designs on the electrode terminal 2 have effectively reduced cell electrode terminal 2 and have been squeezed into the probability of inside battery, and then reduced the hidden danger of internal short-circuit of battery.
Described electrode terminal 2 is made one with described cover plate 1.As shown in Figure 9, cover plate assembly comprises cover plate 1, tubular rivet 12, and insulating sealer 9 and electrode terminal 2, cover plate 1 is provided with through hole, and a tubular rivet 12 is welded in the through hole, and the hollow space of tubular rivet 12 communicates with through hole on the cover plate 1; Electrode terminal 2 is passed through hole on tubular rivet 12 and the cover plate 1, then by injecting sealing material injection moulding in tubular rivet 12 and cover plate 1 through hole, on tubular rivet 12 and cover plate 1, form an insulating sealer 9 in the through hole, this moment, electrode terminal 2 was injection-moulded in the insulating sealer 9, made insulating sealer 9 exceed tubular rivet top and encase tubular rivet 12 tops to form turnup structure 90; Preferably, insulating sealer 9 also can form insulated part in cover plate 1 lower end, be electrically connected with cover plate 1 to prevent lug as spacer ring 91.
Described positive plate, negative plate has dressing district and dressing district not, evenly be coated with active material in the dressing district, a not dressing district with certain width is reserved or scraped to an end parallel with the pole piece length direction, anode ear, negative electrode lug directly is not laminated in the dressing district by one deck at least, anode ear like this, negative electrode lug and place, dressing district are provided with the logical area in bigger electric current road, can prevent that battery is in the large current density electric process or under the situation of abuse, heat is at anode ear, negative electrode lug and auxiliary material district intersection are assembled in a large number, have improved the heavy-current discharge performance and the fail safe of battery.
The described sheet 3 that is flexible coupling is formed by the multiple layer metal foil layer is folded, and the thickness in monolayer of described tinsel is 0.005mm～0.2mm.Wherein, the positive pole that is connected with the described anode ear preferred laminated aluminium foil of sheet that is flexible coupling is laminated, and the negative pole that is connected with the described negative electrode lug preferred multilayer copper foil of sheet that is flexible coupling is laminated.The described in addition sheet 3 that is flexible coupling can annealed PROCESS FOR TREATMENT, to strengthen its toughness.The sheet 3 that is flexible coupling of the present invention also can be reeled by metal forming and be formed, as shown in Figure 9.This be since stacked be flexible coupling sheet make and use in scatter easily, and the takeup type sheet that is flexible coupling does not have this situation and produces; In addition in the coiling course of processing, avoided stacked mould die-cut, can reduce the chance that produces metal fillings in the manufacturing process.Therefore the sheet 3 that is flexible coupling of the present invention is more preferably reeled by metal forming and is formed.
In the present embodiment, because soft pole piece 3 one ends that connect weld together with lug 4, thereby lug 4 also has a bigger bending angle, makes lug 4 become greatly in 8 li flexible scopes of electric core, is not easy to be broken in vibration processes.
The connection of mentioning in the present embodiment can be to adopt a kind of connected mode that is selected from ultrasonic bonding, resistance welded, the laser welding.
As shown in figure 11, this power battery pack is to adopt to have in the present embodiment a plurality of monomer lithium ion batteries of electrode terminal connected mode and be connected and form.
Another execution mode provided by the invention, as shown in Figure 3, compare with embodiment 1, its difference is, comprise three electric cores 10 in this battery case 11, and three corresponding with it sheets 3 that are flexible coupling, described electrode terminal 2 is located at corresponding cover plate 1 position, gap between first lug 4 and second lug 4, described sheet 3 one ends that are flexible coupling link to each other with lug 4 respectively, the other end is connected to electrode terminal 2 one sides, and the described anti-parts 5 that fracture are arranged at the side that the described sheet 3 that is flexible coupling is connected with described electrode terminal 2.Electric core 10 numbers that battery comprises in the present embodiment are three, but the present invention is not limited to three, can comprise more a plurality of electric cores 10.
The connection of mentioning in the present embodiment can be to adopt a kind of connected mode that is selected from ultrasonic bonding, resistance welded, the laser welding.
Another execution mode provided by the invention, as shown in Figure 4, compare with embodiment 1, its difference is pointed out to be, comprises three electric cores 10 in the described shell 11, and three corresponding with it sheets 3 that are flexible coupling, the position of cover plate 1 correspondence of lug 4 correspondences in the middle of described electrode terminal 2 is located at, described sheet 3 one ends that are flexible coupling link to each other with lug 4 respectively, and the other end is connected to electrode terminal 2 one sides, and the described anti-parts 5 that fracture are arranged at the side that the described sheet 3 that is flexible coupling is connected with described electrode terminal 2.On the lug 4, lug 4 is overwhelmed in the middle of electrode terminal 2 just in time is pressed in the present embodiment, it is serious to cause it to tilt, and is easy to generate fold, fracture, causes the safety problem of battery.
Therefore among the present invention, when comprising odd number electricity core in the casing of lithium ion battery, described electrode terminal 2 preferably should be located between lug 4 and the lug 4 or lug 4 and shell 11 between corresponding cover plate 1 position, gap, to prevent the situation of embodiment 3.
The connection of mentioning among the present invention can be to adopt a kind of connected mode that is selected from ultrasonic bonding, resistance welded, the laser welding.
Although carefully described the present invention with reference to its specific execution mode, it will be understood to those of skill in the art that under the prerequisite of the spirit and scope of the present invention that do not deviate from the claims qualification, can make various changes in form and details.
Claims (15)
1. a lithium ion battery comprises shell (11), cover plate (1), electric core (10),
Described electric core (10) is made up of positive plate, barrier film, negative plate, and described electric core (10) is arranged in the described shell (11), has lug (4) on the described electric core (10);
It is characterized in that described lithium ion battery also comprises sheet that is flexible coupling (3) and electrode terminal (2),
Described electrode terminal (2) is arranged on the described cover plate (1), and described electrode terminal (2) passes described cover plate (1) and is connected with described lug (4) by the sheet that is flexible coupling (3);
The described sheet that is flexible coupling (3) has bending, and the bending part of the described sheet that is flexible coupling (3) is provided with the anti-parts (5) that fracture, and is used to prevent that the described sheet that is flexible coupling (3) bending part from fractureing.
2. lithium ion battery according to claim 1, it is characterized in that, the described anti-parts (5) that fracture comprise tension member (6) and connector (7), described tension member (6) is connected with described connector (7) or directly is one, described tension member (6) provides the described sheet that is flexible coupling (3) bending part to strut tension force, and described connector (7) is fixed described tension member (6).
3. lithium ion battery according to claim 2 is characterized in that, the described anti-parts (5) that fracture are located at the bending part of the described sheet that is flexible coupling (3), and described connector is connected with electrode terminal, lug, shell or cover plate, fixing described tension member.
4. lithium ion battery according to claim 2 is characterized in that, described tension member (6) is selected from a kind of in annulus, cylinder, rectangular post, triangular prism, polygon post, spherical, a plurality of spherical phase disjunctor; It is a kind of in one rectangular, plates, the blocks that described connector (7) is selected from.
5. lithium ion battery according to claim 4 is characterized in that, described tension member (6) is an annulus, and described connector (7) is one rectangular, and described annulus rectangularly is connected or directly is one with described; Described annulus is located at the described sheet bending part that is flexible coupling, stacked being connected on the described electrode terminal (2) of described rectangular and described sheet (3) one ends that are flexible coupling, the described rectangular outermost layer that is connected the described sheet that is flexible coupling (3).
7. lithium ion battery according to claim 1 is characterized in that, the described sheet that is flexible coupling (3) is connected described lug (4) outside, and the described outside refers to that with described electrode terminal (2) be the center, away from a side of described electrode terminal (2).
8. lithium ion battery according to claim 1, it is characterized in that, comprise at least two electric cores (10 in the described shell (11), 10 '), and corresponding with it at least two sheets (3 that are flexible coupling, 3 '), described electric core (10) two ends have lug (4), and described lug (4) is connected with described electrode terminal (2) by the described sheet that is flexible coupling (3).
9. lithium ion battery according to claim 1, it is characterized in that, described electrode terminal (2) be arranged between described lug (4) and the lug (4 ') or described lug (4) and shell (9) between corresponding cover plate (1) position, gap, described be flexible coupling sheet (3) one ends respectively with described lug (4,4 ') link to each other, the other end is connected to described electrode terminal (2) one sides.
10, lithium ion battery according to claim 1, it is characterized in that, described positive plate, negative plate are equipped with dressing district and dressing district not, the not dressing district of described positive plate, negative plate forms anode ear, negative electrode lug, and described not dressing district is positioned at and positive plate, the parallel end of negative plate length direction.
11. lithium ion battery according to claim 1 is characterized in that, described electrode terminal (2) surface is provided with one groove (8), described groove (8) fracture after being subjected to the external force effect.
12. lithium ion battery according to claim 1 is characterized in that, described electrode terminal (2) is made one with described cover plate (1), comprises cover plate (1), tubular rivet (12), insulating sealer (9), electrode terminal (2); Described cover plate (1) is provided with through hole, and described tubular rivet (12) is arranged on the cover plate (1), and described through hole communicates with the hollow space of tubular rivet (12); Described insulating sealer (9) is located in the tubular rivet (12), and electrode terminal (2) passes from insulating sealer (9), and the described insulating sealer of tubular rivet (12) clamping (9) is with enclosed electrode terminal (9); Insulating sealer (9) exceeds tubular rivet (12) top and encases tubular rivet (12) top formation turnup structure.
13. lithium ion battery according to claim 1 is characterized in that, the described sheet that is flexible coupling (3) is formed by the multiple layer metal foil layer is folded, and the thickness in monolayer of described tinsel is 0.005mm～0.2mm.
14. lithium ion battery according to claim 1 is characterized in that, the described sheet that is flexible coupling (3) is reeled by metal forming and is formed, and the thickness in monolayer of described tinsel is 0.005mm～0.2mm.
15. lithium ion battery according to claim 1 is characterized in that, described connection is selected from a kind of in ultrasonic bonding, resistance welded, the laser welding.
16. power battery pack, comprise a plurality of monomer lithium ion batteries, described a plurality of monomer lithium ion battery connects by series, parallel or series-parallel connection, it is characterized in that described monomer lithium ion battery is according to any described lithium ion battery of claim 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202074828U CN201364930Y (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142083 | 2008-08-26 | ||
| CN200810142083.2 | 2008-08-27 | ||
| CN200810142088.5 | 2008-08-27 | ||
| CN200810142082.8 | 2008-08-27 | ||
| CN200810142084.7 | 2008-08-27 | ||
| CNU2008202074828U CN201364930Y (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN201364930Y true CN201364930Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202074828U Expired - Lifetime CN201364930Y (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
| CN200810170483.4A Active CN101662044B (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
| CNU2008202074781U Expired - Lifetime CN201364929Y (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810170483.4A Active CN101662044B (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
| CNU2008202074781U Expired - Lifetime CN201364929Y (en) | 2008-08-26 | 2008-11-01 | Lithium ion battery and battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662044B (en) * | 2008-08-26 | 2014-03-12 | 比亚迪股份有限公司 | Lithium ion battery and battery pack |
| CN106384839A (en) * | 2016-10-27 | 2017-02-08 | 惠州亿纬锂能股份有限公司 | Winding type L-shaped soft package battery and preparation method thereof |
| CN110383536A (en) * | 2017-03-06 | 2019-10-25 | 三星Sdi株式会社 | Secondary cell |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709500B (en) * | 2012-05-25 | 2015-09-02 | 丁振荣 | Lithium battery cap, battery core, lithium battery and battery core assemble method |
| CN106784570A (en) * | 2017-01-20 | 2017-05-31 | 深圳市瑞德丰精密制造有限公司 | The chip architecture that is flexible coupling and battery cap |
| CN117861929B (en) * | 2024-03-11 | 2024-05-10 | 常州威斯敦粘合材料有限责任公司 | All-insulation spraying system and all-insulation spraying method for power battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4556428B2 (en) * | 2003-12-24 | 2010-10-06 | 株式会社Ｇｓユアサ | battery |
| JP4495994B2 (en) * | 2004-03-29 | 2010-07-07 | 株式会社東芝 | Nonaqueous electrolyte secondary battery |
| CN201364930Y (en) * | 2008-08-26 | 2009-12-16 | 比亚迪股份有限公司 | Lithium ion battery and battery pack |
-
2008
- 2008-11-01 CN CNU2008202074828U patent/CN201364930Y/en not_active Expired - Lifetime
- 2008-11-01 CN CN200810170483.4A patent/CN101662044B/en active Active
- 2008-11-01 CN CNU2008202074781U patent/CN201364929Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662044B (en) * | 2008-08-26 | 2014-03-12 | 比亚迪股份有限公司 | Lithium ion battery and battery pack |
| CN106384839A (en) * | 2016-10-27 | 2017-02-08 | 惠州亿纬锂能股份有限公司 | Winding type L-shaped soft package battery and preparation method thereof |
| CN110383536A (en) * | 2017-03-06 | 2019-10-25 | 三星Sdi株式会社 | Secondary cell |
| US11489222B2 (en) | 2017-03-06 | 2022-11-01 | Samsung Sdi Co., Ltd. | Secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201364929Y (en) | 2009-12-16 |
| CN101662044A (en) | 2010-03-03 |
| CN101662044B (en) | 2014-03-12 |
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