CN200953357Y - Soft package lithium ion battery device - Google Patents
Soft package lithium ion battery device Download PDFInfo
- Publication number
- CN200953357Y CN200953357Y CNU2006200273052U CN200620027305U CN200953357Y CN 200953357 Y CN200953357 Y CN 200953357Y CN U2006200273052 U CNU2006200273052 U CN U2006200273052U CN 200620027305 U CN200620027305 U CN 200620027305U CN 200953357 Y CN200953357 Y CN 200953357Y
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- negative
- ion battery
- blank
- battery
- 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
Abstract
The utility model belongs to a soft packing lithium ion battery system, which comprises a plurality of battery cores formed by cascade of anode and cathode pole plate, and anode, and cathode tab at two ends of the battery core, fluid phases of a plurality of blank anode collectors of each group are dislocated at one end of the battery core, and fluid phases of a plurality of blank cathode collectors of each group are dislocated the other end of the battery core. The anode and cathode tabs are fluid connected with relevant blank connectors of each group separately, and are sealed together with the battery cores by packing film, part of the tabs are exposed outside the packing film. The utility model improves mass ratio of the battery; reduces welding thickness between anode and cathode connector and the tab, operated easily and avoids fluid leakage; moreover, avoids short circuit of anode and cathode tab, decreases current density and calorific power by means of increasing tab quantity, which has a bright future in the field of soft packing lithium ion battery high power orientation.
Description
Technical field
The utility model belongs to the lithium ion battery structure technical field, particularly relates to a kind of flexible packing lithium ion battery device.
Background technology
Lithium ion battery is widely used in communication, electron trade as a kind of high efficient energy sources carrier, particularly on person-to-person communication such as mobile phone, the PDA instrument, and flexible packing lithium ion battery has high working voltage and very high specific energy and volumetric specific energy because of it, more and more is subjected to the favor in market.And can be widely used in electric motor car, hybrid vehicle and electric tool etc. as high power electrokinetic cell formula high capacity cell, flexible packing lithium ion battery comprises the lithium ion battery and the polymer Li-ion battery of liquid electrolyte plastic-aluminum stack membrane packing.
Along with continuing to increase that flexible packing lithium ion battery capacity and high-discharge-rate are required, the lug that battery is drawn becomes the key factor that influences the battery high-rate discharge ability.At present for improving the flexible packing lithium ion battery high-rate discharge ability, increase lug area and lug number as far as possible, though this structure effectively reduces the lug current density, but brought inconvenience for the flexible package of battery, occur easily because of the encapsulation leakage cause battery defect rate, influenced the battery qualification rate.
The utility model content
The utility model is for solving problems of the prior art, providing a kind of is improving on the flexible packing lithium ion battery high-rate discharge ability basis, it is defective to prevent the battery that causes because of the encapsulation leakage, improves the high flexible packing lithium ion battery device of battery qualification rate.
The utility model for the technical scheme that solves the technical problem employing that exists in the known technology is:
The flexible packing lithium ion battery device, comprise that anode plate and negative plates that multi-disc is isolated by barrier film stack gradually the battery that forms and just be positioned at the battery two ends, negative lug, every anode plate one end has the blank plus plate current-collecting body of part, every negative plates one end has the blank negative current collector of part, be characterized in: multi-disc is described respectively to be organized blank plus plate current-collecting body and interlaces and be positioned at battery one end, multi-disc is described respectively to be organized blank negative current collector and interlaces and be positioned at the battery other end, just, negative lug respectively with respectively organize blank collector accordingly and be connected, described battery and just, negative lug is hermetically sealed by packaging film to be one, and part just, negative lug is positioned at the packaging film outside.
The utility model can also adopt following technical measures:
The flexible packing lithium ion battery device is characterized in: described positive and negative electrode lug and packaging film contact site are provided with heat-seal adhesive; Described barrier film is the cover that the inside dimension pocket-type identical with anode plate or negative plates overall dimension centers on shape entirely; Described packaging film is the aluminum plastic film composite material; Described plus plate current-collecting body is the aluminium foil of thickness 18～22 μ m; Described negative current collector is Copper Foil or the nickel foil of thickness 8～12 μ m; The number difference of described battery two ends positive and negative electrode lug; The number of described battery two ends positive and negative electrode lug is identical.
Advantage that the utlity model has and good effect: because the positive and negative electrode pole plate has only the blank collector of an end reserve part, unnecessary blank collector is dismissed, alleviated weight, improved the specific energy of battery; Because blank positive and negative electrode collector interlaces and is positioned at the battery two ends, when being connected with lug, has reduced throat thickness, and is easy and simple to handle, and is difficult for causing the phenomenon of leakage; Can effectively avoid short circuit between positive and negative lug; Also can effectively increase lug quantity, reduce current density, reduce caloric value.Be with a wide range of applications aspect the flexible packing lithium ion battery high powerization.
Description of drawings
Fig. 1 is a kind of execution mode schematic diagram of the utility model flexible packing lithium ion battery device;
Fig. 2 is Fig. 1 empty collector and lug connection diagram;
Fig. 3 is the blank collector position view of positive and negative electrode among Fig. 1;
Fig. 4 is blank collector of the another kind of execution mode of the utility model flexible packing lithium ion battery device and lug connection diagram;
Fig. 5 is the blank collector position view of positive and negative electrode among Fig. 4;
Fig. 6 is blank collector of the positive and negative electrode of Fig. 3 and Fig. 5 combination and lug connection diagram.
Wherein, 1-barrier film, the blank plus plate current-collecting body of 2-, 3-negative plates, 4-anode plate, the blank negative current collector of 5-, 6-battery, 7-positive pole ear, 8-heat-seal adhesive, 9-negative lug, 10-packaging film.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following example now and be described with reference to the accompanying drawings as follows:
With reference to accompanying drawing 3, select for use thickness be 18～22 μ m aluminium foils as plus plate current-collecting body, scribble with LiCoO on aluminium foil according to dimensional requirement
2Or LiNi
xMn
yCo
zO
2Be behind the main positive electrode, tailor Cheng Yiduan leave the part aluminium foil as blank plus plate current-collecting body 2, all the other all scribble the anode plate 4 that above-mentioned positive electrode forms, described blank plus plate current-collecting body 2 width are 20～50% of anode plate 4 width, and are positioned at apart from anode plate 4 one edges 3mm～15mm place; Selecting thickness for use is that 18～22 μ m Copper Foils are as negative current collector, according to dimensional requirement scribble on the Copper Foil carbon or Si base or Sn base and their composite material as negative material after, tailor Cheng Yiduan leave the part Copper Foil as blank negative current collector 5, all the other all scribble the negative plates 3 that above-mentioned negative material forms, described blank negative current collector 5 width are 20～50% of negative plates 3 width, and are positioned at apart from negative plates 3 one edges 3mm～15mm place; Negative plates 3 sizes are not less than anode plate 4.The TPO material that will comprise three layers of perforated membrane of Celgard is made the barrier film 1 of an end opening, its excess-three end sealing, put anode plate 4 rear enclosed openends, expose blank plus plate current-collecting body 2, successively positive and negative electrode pole plate 4,3 is pressed: just/negative/just/negative ... / positive sequential cascade is made battery 6, battery 6 one ends of making are two groups of blank plus plate current-collecting bodies 2, and the other end is two groups of blank negative current collectors 5; As shown in Figure 2, with ultrasonic spot welder stacked positive and negative blank collector 2,5 and the positive and negative electrode lug 7,9 that has heat-seal adhesive 8 are accordingly welded together; The aluminium moulding material encases battery 6 as packaging film 10, and behind heat-seal adhesive 8 heat seals on positive and negative electrode lug 7,9, forms flexible packing lithium ion battery device shown in Figure 1.
With reference to accompanying drawing 5, select for use and be enclosed within the barrier film 1 and have the anode plate 4 of aluminium foil as blank plus plate current-collecting body 2, have the negative plates 3 of Copper Foil as blank negative current collector 5, the width of blank aluminium foil or Copper Foil is about 18%～30% of plate width, place on the right side according to blank plus plate current-collecting body 2 on first anode plate 4 from top to bottom, blank plus plate current-collecting body 2 is in the centre on second anode plate 4, blank plus plate current-collecting body 2 side that keeps left on the 3rd anode plate 4, negative plates 3 between positive plate also puts in order by the relevant position, the rest may be inferred lamination, making battery shown in Figure 46 one ends is three groups of blank plus plate current-collecting bodies 2, three groups of blank negative current collectors 5 of the other end, just having heat-seal adhesive 8 with 1～4 of ultrasonic spot welder weldering on every group of blank utmost point collector, negative electrode lug 7,9, seal by the mode that seals at last and make another kind of flexible packing lithium ion battery device.
As shown in Figure 6, present embodiment empty plus plate current-collecting body 2 adopts the aluminium foil of embodiment 1 to keep mode and stacks mode, blank negative current collector 5 adopts the Copper Foil of embodiment 2 to keep mode and stacks mode, weld 1～4 corresponding positive and negative lug 7,9 that has heat-seal adhesive 8 with ultrasonic spot welder on every group of blank utmost point collector, positive and negative electrode lug number can be inequality, draw from battery 6 two ends respectively, seal into another flexible packing lithium ion battery device at last.
The respective embodiments described above all can be enclosed within negative plates 3 in the barrier film 1, press: negative/just/negative/just ... / negative sequential cascade is made the mode of battery 6, is made different flexible packing lithium ion battery devices.
Claims (8)
1. flexible packing lithium ion battery device, comprise that positive plate and negative plate that multi-disc is isolated by barrier film stack gradually the battery that forms and just be positioned at the battery two ends, negative electrode lug, every positive plate one end has the blank positive collector of part, every negative plate one end has the blank negative collector of part, it is characterized in that: each group of the positive collector of the described blank of multi-disc interlaces and is positioned at battery one end, each group of the negative collector of the described blank of multi-disc interlaces and is positioned at the battery other end, just, negative electrode lug respectively with respectively organize blank collector accordingly and be connected, described battery and just, negative electrode lug is hermetically sealed by packaging film to be one, and part just, negative electrode lug is positioned at the packaging film outside.
2. flexible packing lithium ion battery device according to claim 1 is characterized in that: described positive and negative lug and packaging film contact site are provided with heat-seal adhesive.
3. flexible packing lithium ion battery device according to claim 1 is characterized in that: described barrier film is the cover that the inside dimension pocket-type identical with positive plate or negative plate overall dimension centers on shape entirely.
4. flexible packing lithium ion battery device according to claim 1 is characterized in that: described packaging film is the aluminum plastic film composite material.
5. flexible packing lithium ion battery device according to claim 1 and 2 is characterized in that: described positive collector is the aluminium foil of thickness 18～22 μ m.
6. flexible packing lithium ion battery device according to claim 1 and 2 is characterized in that: described negative collector is Copper Foil or the nickel foil of thickness 8～12 μ m.
7. flexible packing lithium ion battery device according to claim 1 and 2 is characterized in that: the number difference of the positive and negative lug in described battery two ends.
8. flexible packing lithium ion battery device according to claim 1 and 2 is characterized in that: the number of the positive and negative lug in described battery two ends is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200273052U CN200953357Y (en) | 2006-09-15 | 2006-09-15 | Soft package lithium ion battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200273052U CN200953357Y (en) | 2006-09-15 | 2006-09-15 | Soft package lithium ion battery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953357Y true CN200953357Y (en) | 2007-09-26 |
Family
ID=38811659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200273052U Expired - Lifetime CN200953357Y (en) | 2006-09-15 | 2006-09-15 | Soft package lithium ion battery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953357Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011004330A1 (en) * | 2009-07-07 | 2011-01-13 | Gp Batteries International Limited | Prismatic batteries and electronic components comprising a stack of insulated electrode plates |
| EP2500972A1 (en) * | 2010-12-20 | 2012-09-19 | LG Chem, Ltd. | Lithium secondary battery having multi-directional lead-tab structure |
| CN105489938A (en) * | 2015-07-31 | 2016-04-13 | 万向A一二三系统有限公司 | Lithium ion battery lamination mode |
| CN105529412A (en) * | 2016-01-06 | 2016-04-27 | 浙江汇同电源有限公司 | Novel storage battery |
| CN106129479A (en) * | 2016-08-22 | 2016-11-16 | 深圳拓邦新能源技术有限公司 | Core strueture and preparation method thereof, button secondary lithium battery |
| EP3196961A1 (en) * | 2016-01-20 | 2017-07-26 | Ningde Amperex Technology Limited | Secondary battery |
| CN112670601A (en) * | 2019-10-15 | 2021-04-16 | 通用汽车环球科技运作有限责任公司 | Ultra high power hybrid battery design with uniform heat distribution |
-
2006
- 2006-09-15 CN CNU2006200273052U patent/CN200953357Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011004330A1 (en) * | 2009-07-07 | 2011-01-13 | Gp Batteries International Limited | Prismatic batteries and electronic components comprising a stack of insulated electrode plates |
| CN102484277A (en) * | 2009-07-07 | 2012-05-30 | 金山电池国际有限公司 | Prismatic battery and electronic component comprising a stack of insulated electrode plates |
| EP2500972A1 (en) * | 2010-12-20 | 2012-09-19 | LG Chem, Ltd. | Lithium secondary battery having multi-directional lead-tab structure |
| CN103098285A (en) * | 2010-12-20 | 2013-05-08 | 株式会社Lg化学 | Lithium secondary battery having multi-directional lead-tab structure |
| EP2500972A4 (en) * | 2010-12-20 | 2013-11-27 | Lg Chemical Ltd | Lithium secondary battery having multi-directional lead-tab structure |
| US8968910B2 (en) | 2010-12-20 | 2015-03-03 | Lg Chem, Ltd. | Lithium secondary battery having multi-directional lead-tab structure |
| CN105489938A (en) * | 2015-07-31 | 2016-04-13 | 万向A一二三系统有限公司 | Lithium ion battery lamination mode |
| CN105529412A (en) * | 2016-01-06 | 2016-04-27 | 浙江汇同电源有限公司 | Novel storage battery |
| CN105529412B (en) * | 2016-01-06 | 2019-03-08 | 浙江汇同电源有限公司 | Battery |
| EP3196961A1 (en) * | 2016-01-20 | 2017-07-26 | Ningde Amperex Technology Limited | Secondary battery |
| US10340497B2 (en) | 2016-01-20 | 2019-07-02 | Ningde Amperex Technology Limited | Secondary battery |
| CN106129479A (en) * | 2016-08-22 | 2016-11-16 | 深圳拓邦新能源技术有限公司 | Core strueture and preparation method thereof, button secondary lithium battery |
| CN112670601A (en) * | 2019-10-15 | 2021-04-16 | 通用汽车环球科技运作有限责任公司 | Ultra high power hybrid battery design with uniform heat distribution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200953357Y (en) | Soft package lithium ion battery device | |
| JP4736580B2 (en) | Bipolar battery, battery pack and vehicle equipped with these batteries | |
| US9350008B2 (en) | Automobile cell and related method | |
| EP2811571B1 (en) | Secondary battery having improved energy density | |
| US7438989B2 (en) | Flat cell, battery, combined battery, and vehicle | |
| US10147911B2 (en) | Lithium ion prismatic cell comprising multiple jelly rolls with additional material between jelly rolls | |
| CN1808760A (en) | Cylindrical flexible packed lithium ion storage cell with aluminum-plastic composite film | |
| CN104871358A (en) | Battery cell comprising stepped structure | |
| CN201766132U (en) | High-capacity polymer lithium ion battery structure | |
| CN110998894A (en) | Lead tab for battery terminal | |
| JP2019053862A (en) | Laminated electrode body and power storage element | |
| WO2019121332A1 (en) | Pouch cell and method of manufacturing same | |
| CN202150519U (en) | Lithium ion secondary battery without polar ears | |
| CN104681878A (en) | Manufacturing method of winding type lithium ion battery and winding type lithium ion battery | |
| CN202601777U (en) | Large-capacity high-magnification square lithium ion power battery | |
| KR100810601B1 (en) | Crude cell for large secondary battery and manufacturing method thereof | |
| JP2013033688A (en) | Secondary battery | |
| CN213601929U (en) | Special-shaped battery pack structure | |
| WO2019008546A1 (en) | Laminated electrode body manufacturing method, and energy storage element manufacturing method | |
| CN202917600U (en) | Aluminum-plastic packed high-power lithium ion battery | |
| EP2899769A1 (en) | Pouch for secondary battery and secondary battery comprising same | |
| CN2909545Y (en) | Secondary battery | |
| CN211879546U (en) | Soft packet of power battery of jumbo size | |
| CN210325964U (en) | Battery module electricity core, battery and vehicle | |
| CN115425170A (en) | Preparation method of high-rate battery positive plate and 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: 20070926 |
|
| EXPY | Termination of patent right or utility model |