CN103531742A - Flexible packaging lithium ion battery - Google Patents
Flexible packaging lithium ion battery Download PDFInfo
- Publication number
- CN103531742A CN103531742A CN201310450030.8A CN201310450030A CN103531742A CN 103531742 A CN103531742 A CN 103531742A CN 201310450030 A CN201310450030 A CN 201310450030A CN 103531742 A CN103531742 A CN 103531742A
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- CN
- China
- Prior art keywords
- battery
- pole
- lithium ion
- pole column
- ion battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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
Abstract
The invention provides a flexible packaging lithium ion battery. The flexible packaging lithium ion battery comprises an even number of battery cores, a pole column, a battery upper cover, a battery lower shell and a pole column sleeve piece which is inlaid in the battery upper cover, wherein a tab of each battery core penetrates through a tab groove of the pole column sleeve piece and is fit with the opposite inclined surfaces of the pole column sleeve piece and the pole column; the pole column is fixedly connected with the pole column sleeve piece through a connecting bolt; and the battery upper cover is fixedly connected with the battery lower shell. The flexible packaging lithium ion battery has the benefits that the tab and the pole column are connected through the inclined surface structures on the pole column sleeve piece and the pole column; the two inclined surfaces are pressed vertically and oppositely to generate inclined pressure similar to a shear force so as to realize firm connection between the pole column and the tab; according to the tab high-efficiency inclined-pressing structure, the contact resistance of the battery is greatly reduced, the stability of the battery is improved, excellent conductivity of the battery is guaranteed, and the application range of the flexible packaging lithium ion battery in the aspect of new energy is greatly enlarged.
Description
Technical field
The present invention relates to field of batteries, refer to especially a kind of flexible packing lithium ion battery.
Background technology
New energy electric vehicle generally adopts lithium ion battery as power source, and flexible packing lithium ion battery is applied very extensive on electric automobile as power source, and the lithium ion battery of this large capacity flexible package is comprised of a plurality of battery cores additional inflaming retarding shell in parallel.The both positive and negative polarity of battery core is drawn by battery electrode column, cell polar ear is band type structure, it with pole between adopt the mode of pressing plate crimping to be connected, the pole of this battery is comprised of pole body, crimping pressing plate and impacted bolt, during crimping, can increase not contact internal resistance because of the effective contact-making surface crimp force of lug, battery can cause pole heating when heavy-current discharge, reduces the multiplying power discharging ability of lithium ion battery.
In addition, above-mentioned lithium ion battery pole is split type, and such pole has a lot of tie points, thereby has increased the unsteadiness of battery.Although adopt Welding Structure to replace bolt crimping can reduce contact resistance, waste time and energy not easy to operate.The core strueture form of flexible packing lithium ion battery is different from the lithium battery of cylinder or steel aluminum hull rectangular cell or other form completely, the battery core of flexible packing lithium ion battery is square and with two rectangle lugs, and its external packing aluminum plastic film structural strength is low, overall dimension tolerance is large and be electriferous state during its combination.Based on above-mentioned various reasons, cause the battery core group technology of flexible packing lithium ion battery to be difficult for realizing.
Summary of the invention
The present invention proposes a kind of flexible packing lithium ion battery, has solved that flexible packing lithium ion battery contact resistance in prior art is large, the problem of poor stability.
Technical scheme of the present invention is achieved in that
, comprising: battery core, pole, cell cover, battery lower casing and be embedded in the pole external member in described cell cover; The quantity of described battery core is even number; The lug of described battery core passes the lug groove of described pole external member and fits with the relative inclined-plane of described pole external member, described pole; Between described pole and described pole external member, by connecting bolt, be fixedly connected with; Described cell cover is fixedly connected with described battery lower casing.
The quantity of described battery core is 4 or 6.
The present invention also comprises protective cover; Described protective cover is located at the top of described pole, and with described cell cover between by pin, be connected.
The surrounding cover of described pole has sealing ring.
Described sealing ring is silica gel sealing ring.
Fixed by snap connection between described cell cover and described battery lower casing.
Implementation procedure of the present invention is as follows:
First by all battery cores of flexible packing lithium ion battery parallel combination side by side, again by lug through the lug groove of pole external member and lug is affixed to respectively to the inclined-plane of pole external member, then pole is vertically put into pole external member, and pole external member and pole are compressed with connecting bolt.Again the battery core combining, lug, pole, pole external member are put into battery lower casing, cell cover is connected with battery lower casing buckle.Finally the sealing ring of different colours is enclosed within respectively on both positive and negative polarity pole.In addition, protective cover is fixedly connected with by pin with cell cover.
So far, it is complete that lithium-ion battery monomer just combines, and the connection in series-parallel that can also realize several lithium-ion battery monomers with connecting band by the connection in series-parallel bolt on pole is connected.
The effect that protective cover is set is as follows: (1) can play the effect of blocking the mixed and disorderly connection cable of inside battery, guaranteeing cell integrated aesthetic property; (2) can protect battery plus-negative plate pole, avoid extraneous electric conductor to drop between both positive and negative polarity pole and cause short circuit, guarantee the stability of battery and good conductivity.
The sealing ring color being enclosed within outside Positive Poles and negative pole pole is different, can distinguish by the color of sealing ring the both positive and negative polarity of battery like this; In addition, sealing ring can also play the effect in gap between sealing pole and pole external member, blocks inner lug and other connection cables, plays beauty function, plays sealing function simultaneously, guarantees cell integrated good sealing.
Beneficial effect of the present invention is:
By the ramp structure on pole external member and pole, realize being connected of lug and pole, two inclined-planes are vertically to pressing the diagonal compression that produces similar shearing force, realizing pole is connected with the firm of lug, the efficient baroclinic structure mode of such lug has greatly reduced the contact resistance of battery, improve the stability of battery, guarantee the conductive capability that battery is good, greatly widened the scope of application of flexible packing lithium ion battery aspect new forms of energy.Can be widely used in the fields such as motorcycle, electric automobile, communication energy storage, microgrid energy storage, large-scale honourable energy storage.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is sectional perspective structural representation of the present invention;
Fig. 2 is part plan structure cutaway view of the present invention;
Fig. 3 is the left view of Fig. 2;
In figure:
1, battery core, 2, lug, 3, lug groove, 4, pole external member, 5, pole, 6, connecting bolt, 7, cell cover, 8, sealing ring.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment is as shown in Figure 1-Figure 3 known, a kind of flexible packing lithium ion battery of the present invention,, comprising: battery core 1, pole 5, cell cover 7, battery lower casing, protective cover and be embedded in the pole external member 4 in described cell cover 7; The quantity of described battery core 1 is 4; The lug 2 of described battery core 1 passes the lug groove 3 of described pole external member 4 and fits with the relative inclined-plane of described pole external member 4, described pole 5; Between described pole 5 and described pole external member 4, by connecting bolt 6, be fixedly connected with; Described cell cover 7 and described fixed by snap connection of battery lower casing.Described protective cover is located at the top of described pole 5, and with described cell cover 7 between by pin, be connected.
The surrounding cover of described pole 5 has sealing ring 8.Described sealing ring 8 is silica gel sealing ring.
The effect that protective cover is set is as follows: (1) can play the effect of blocking the mixed and disorderly connection cable of inside battery, guaranteeing cell integrated aesthetic property; (2) can protect battery plus-negative plate pole 5, avoid extraneous electric conductor to drop between both positive and negative polarity pole 5 and cause short circuit, guarantee the stability of battery and good conductivity.
Sealing ring 8 colors that are enclosed within outside Positive Poles and negative pole pole are different, can distinguish by the color of sealing ring 8 both positive and negative polarity of battery like this; In addition, sealing ring can also play the effect in gap between sealing pole and pole external member, blocks inner lug and other connection cables, plays beauty function, plays sealing function simultaneously, guarantees cell integrated good sealing.
Implementation procedure of the present invention is as follows:
First by all battery cores 1 of flexible packing lithium ion battery parallel combination side by side, again by lug 2 through the lug groove 3 of pole external member 4 and lug 2 is affixed to respectively to the inclined-plane of pole external member 4, then pole 5 is vertically put into pole external member 4, and pole external member 4 and pole 5 use connecting bolts are compressed.Again the battery core combining 1, lug 2, pole 5, pole external member 4 are put into battery lower casing, cell cover 7 is connected with battery lower casing buckle.Finally the sealing ring of different colours 8 is enclosed within respectively on both positive and negative polarity pole.In addition, protective cover is fixedly connected with by pin with cell cover 7.
So far, it is complete that lithium-ion battery monomer just combines, and the connection in series-parallel that can also realize several lithium-ion battery monomers with connecting band by the connection in series-parallel bolt on pole is connected.
Together with cell cover 7 is embedded in pole external member 4, can facilitate battery core 1, pole external member 4 and the combiner of pole 5 and being connected of battery lower casing.
By the ramp structure of lug groove 3 in pole external member 4, realize being connected of lug 2 and pole 5, two inclined-planes are vertically to pressing the diagonal compression that produces similar shearing force, realizing pole 5 is connected with the firm of lug 2, so efficient baroclinic structure mode of lug 2 has greatly reduced the contact resistance of battery, improve the stability of battery, guarantee the conductive capability that battery is good, greatly improved the practicality of flexible packing lithium ion battery aspect new forms of energy.Can be widely used in the fields such as motorcycle, electric automobile, communication energy storage, microgrid energy storage, large-scale honourable energy storage.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a flexible packing lithium ion battery, is characterized in that, comprising: battery core (1), pole (5), cell cover (7), battery lower casing and be embedded in the pole external member (4) in described cell cover (7); The quantity of described battery core (1) is even number; The lug (2) of described battery core (1) passes the lug groove (3) of described pole external member (4) and fits with the relative inclined-plane of described pole external member (4), described pole (5); Between described pole (5) and described pole external member (4), by connecting bolt (6), be fixedly connected with; Described cell cover (7) is fixedly connected with described battery lower casing.
2. a kind of flexible packing lithium ion battery according to claim 1, is characterized in that, the quantity of described battery core (1) is 4 or 6.
3. a kind of flexible packing lithium ion battery according to claim 1 and 2, is characterized in that, also comprises protective cover; Described protective cover is located at the top of described pole (5), and with described cell cover (7) between by pin, be connected.
4. a kind of flexible packing lithium ion battery according to claim 3, is characterized in that, the surrounding cover of described pole (5) has sealing ring (8).
5. a kind of flexible packing lithium ion battery according to claim 4, is characterized in that, described sealing ring (8) is silica gel sealing ring.
6. a kind of flexible packing lithium ion battery according to claim 1, is characterized in that, fixed by snap connection between described cell cover (7) and described battery lower casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450030.8A CN103531742B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible packing lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450030.8A CN103531742B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible packing lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103531742A true CN103531742A (en) | 2014-01-22 |
| CN103531742B CN103531742B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310450030.8A Active CN103531742B (en) | 2013-09-27 | 2013-09-27 | A kind of flexible packing lithium ion battery |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000082609A (en) * | 1998-09-07 | 2000-03-21 | Matsushita Electric Ind Co Ltd | Variable resistor |
| CN201149877Y (en) * | 2008-01-28 | 2008-11-12 | 苏州星恒电源有限公司 | Battery electrode drawing-off sealing structure |
| TWM382594U (en) * | 2009-12-15 | 2010-06-11 | Gloso Co Ltd | Secondary battery of lithium series |
| CN101752611A (en) * | 2008-12-04 | 2010-06-23 | 深圳市比克电池有限公司 | Lithium battery |
| JP2011138633A (en) * | 2009-12-25 | 2011-07-14 | Sanyo Electric Co Ltd | Cylindrical lithium-ion battery |
| CN202268426U (en) * | 2011-09-15 | 2012-06-06 | 苏州星恒电源有限公司 | Lithium battery electrode leading structure |
| CN202633433U (en) * | 2012-05-30 | 2012-12-26 | 隋明奎 | Single storage battery with lead clad copper grid |
| CN202839819U (en) * | 2012-08-14 | 2013-03-27 | 风帆股份有限公司 | Lug and terminal connection structure of power lithium-ion battery |
| CN202905985U (en) * | 2012-11-23 | 2013-04-24 | 戴敏武 | Combined-type terminal |
| CN203553258U (en) * | 2013-09-27 | 2014-04-16 | 河南环宇赛尔新能源科技有限公司 | Flexible-package lithium ion battery |
-
2013
- 2013-09-27 CN CN201310450030.8A patent/CN103531742B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000082609A (en) * | 1998-09-07 | 2000-03-21 | Matsushita Electric Ind Co Ltd | Variable resistor |
| CN201149877Y (en) * | 2008-01-28 | 2008-11-12 | 苏州星恒电源有限公司 | Battery electrode drawing-off sealing structure |
| CN101752611A (en) * | 2008-12-04 | 2010-06-23 | 深圳市比克电池有限公司 | Lithium battery |
| TWM382594U (en) * | 2009-12-15 | 2010-06-11 | Gloso Co Ltd | Secondary battery of lithium series |
| JP2011138633A (en) * | 2009-12-25 | 2011-07-14 | Sanyo Electric Co Ltd | Cylindrical lithium-ion battery |
| CN202268426U (en) * | 2011-09-15 | 2012-06-06 | 苏州星恒电源有限公司 | Lithium battery electrode leading structure |
| CN202633433U (en) * | 2012-05-30 | 2012-12-26 | 隋明奎 | Single storage battery with lead clad copper grid |
| CN202839819U (en) * | 2012-08-14 | 2013-03-27 | 风帆股份有限公司 | Lug and terminal connection structure of power lithium-ion battery |
| CN202905985U (en) * | 2012-11-23 | 2013-04-24 | 戴敏武 | Combined-type terminal |
| CN203553258U (en) * | 2013-09-27 | 2014-04-16 | 河南环宇赛尔新能源科技有限公司 | Flexible-package lithium ion battery |
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| CN103531742B (en) | 2016-04-27 |
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Effective date of registration: 20190729 Granted publication date: 20160427 |
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