CN102881944A - Flexibly packaged lithium ion power battery - Google Patents
Flexibly packaged lithium ion power battery Download PDFInfo
- Publication number
- CN102881944A CN102881944A CN2012104047845A CN201210404784A CN102881944A CN 102881944 A CN102881944 A CN 102881944A CN 2012104047845 A CN2012104047845 A CN 2012104047845A CN 201210404784 A CN201210404784 A CN 201210404784A CN 102881944 A CN102881944 A CN 102881944A
- Authority
- CN
- China
- Prior art keywords
- battery
- lithium ion
- current collector
- positive pole
- negative
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a flexibly packaged lithium ion power battery which comprises a packaging bag. A battery pole group formed by parallelly connecting at least two single batteries made by adopting winding structures, a left end and a right end of the single battery pole group are provided with a cathode current collector and an anode current collector respectively, the cathode current collector is connected with a cathode lug of the battery, and the anode current collector is connected with an anode lug of the battery. The flexible packaging structure is adopted, so that light weight of the battery is realized, specific energy and specific power of the battery are improved; each single battery in parallel connection adopts the winding structures, so that stability and safety of the battery are improved; and the structure that the anode and cathode lugs are directly connected with the anode and cathode current collectors is adopted, so that internal resistance of the battery is lowered, characteristics of large current output of the battery are realized, power density and energy density of the battery can be improved, and integral performances of the lithium ion battery can be improved.
Description
Technical field
The present invention relates to technical field of lithium ion, particularly relate to a kind of soft package lithium ion power battery.
Background technology
The energy is the basic industry of national economy, and the improvement of economic sustainable and stable development and people's living standard is had very important guaranteeing role.Entered since 21 century, the economic society develop rapidly, scientific and technical innovation is maked rapid progress, and population in the world and economic scale constantly increase, and the energy has obtained using more widely as the most basic actuating force.Along with the reinforcement of the day by day exhausted expection of global non-renewable energy resources resource, energy supply and demand contradiction is appeared suddenly; Simultaneously, the problems such as the environmental pollution that causes in the particularly exploitation of fossil energy resources process of the energy and ecological disruption are increasingly outstanding, and the Global climate change that the energy source emission causes has proposed challenge to the mankind's existence and Economic Development Mode.
Tackle climate change, must walk the road of low-carbon (LC) economy.The numerous and confused technical research that strengthens new and renewable sources of energy in countries in the world is accelerated the development and use to the various ways energy, thereby makes energy resource structure and energy utilization technology become trend of the times to the evolution of low-carbon (LC) and near-zero release.The efficient storage of clean energy resourcies such as solar energy, wind energy, nuclear energy, Hydrogen Energy, tidal energy and be converted into the key of reply energy quagmire.Under this background, the effective conversion between the various energy forms just becomes the emphasis that everybody studies with storage.Chemical power source is as conversion and the storage facility of chemical energy and electric energy, and the every field the human lives obtains using more and more widely especially.
Lithium ion battery has that high-energy-density, high power density, high working voltage, long circulation life, security performance are good, memory-less effect, the advantage such as pollution-free, is present state-of-the-art a kind of green secondary cell.Through nearly 20 years developing rapidly, the lithium-ion electric pool technology reaches its maturity.It is not only at the small-sized movable consumer electronics sector such as notebook computer, mobile phone, video camera dominate, and recently all shows the development prospect that attracts people's attention in electric bicycle, electric tool and other large-scale energy-storage battery field.
Want to make lithium ion battery to be more widely used in energy storage field and electric automobile, must on present basis, further improve the specific capacity of cell and power-performance etc. to reach the Special use requirement in energy storage and electric automobile field.Therefore, in the electrokinetic cell field, at present in the urgent need to developing a kind of lithium-ion-power cell, require the higher capacity of its tool and specific energy, also lighter weight will be arranged.
Summary of the invention
The object of the present invention is to provide a kind of soft package lithium ion power battery of large-capacity high-power simple in structure.
For realizing above-mentioned purpose, the technical solution adopted in the present invention is as follows:
A kind of soft package lithium ion power battery comprises packaging bag, is packaged with the battery core utmost point group that is formed in parallel by two monomer battery cores that adopt winding-structure to make at least in described packaging bag; Negative current collector and plus plate current-collecting body are established respectively in the two ends, the left and right sides of described monomer battery core utmost point group; Described negative current collector is connected with the negative lug of battery, and described plus plate current-collecting body is connected with the positive pole ear of battery.
Described plus plate current-collecting body and the welding of described positive pole ear, described negative current collector and the welding of described negative lug.
Described plus plate current-collecting body and negative current collector and described positive pole ear, carry out respectively pre-welding before stating negative lug welding.
Described packaging bag is aluminum-plastic packaging bag, is formed by two case chip packaging by hot pressing up and down.
Described positive pole ear adopts aluminium material, and described negative lug adopts copper material, plating nickel on surface.
Described positive pole ear, negative lug place the both sides of described battery relatively.
The present invention has improved capacity and the energy of battery by a plurality of monomer battery core parallel-connection structures of inner employing; Each cell in parallel adopts winding-structure, stability and the fail safe of battery have been strengthened, and adopt positive and negative lug directly to be connected with positive and negative collector, reduced the internal resistance of cell, realized the High-current output characteristic of battery, can so that the capacity of battery significantly improve, can improve the power density of battery, overall structure is simple, and the afflux function admirable is conducive to improve the overall performance of lithium ion battery.
Description of drawings
Figure 1 shows that the present invention puies forward the overall schematic of the soft package lithium ion power battery of embodiment confession;
Figure 2 shows that the schematic diagram of battery core utmost point group in the soft package lithium ion power battery that the embodiment of the invention provides;
Figure 3 shows that the schematic diagram of monomer battery core in the soft package lithium ion power battery that the embodiment of the invention provides;
Figure 4 shows that the expansion schematic diagram of monomer battery core in the soft package lithium ion power battery that the embodiment of the invention provides;
Figure 5 shows that Fig. 3 along A-A to cutaway view;
Among the figure: 1 is aluminum-plastic packaging bag, and 2 is battery core utmost point group, and 3 is the monomer battery core, and 4 is positive pole ear, and 5 is negative lug, and 6 is plus plate current-collecting body, and 7 is negative current collector, and 8 is barrier film, and 9 is anode pole piece, and 10 is cathode pole piece.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
A kind of soft package lithium ion power battery comprises packaging bag, is packaged with the battery core utmost point group that is formed in parallel by two monomer battery cores that adopt winding-structure to make at least in described packaging bag; Negative current collector and plus plate current-collecting body are established respectively in the two ends, the left and right sides of described monomer battery core utmost point group; Described negative current collector is connected with the negative lug of battery, and described plus plate current-collecting body is connected with the positive pole ear of battery.
Described plus plate current-collecting body and the welding of described positive pole ear, described negative current collector and the welding of described negative lug.
Described plus plate current-collecting body and negative current collector and described positive pole ear, carry out respectively pre-welding before stating negative lug welding.
Described packaging bag is aluminum-plastic packaging bag, is formed by two case chip packaging by hot pressing up and down.
Described positive pole ear adopts aluminium material, and described negative lug adopts copper material, plating nickel on surface.
Described positive pole ear, negative lug place the both sides of battery relatively.
Below, by reference to the accompanying drawings, flexible packing lithium ion battery of the present invention is further elaborated.
Shown in Fig. 1 ~ 5, a kind of flexible packing lithium ion battery includes the aluminum-plastic packaging bag 1 of rectangular shape, and described aluminum-plastic packaging bag 1 is embedded in the battery core utmost point group 2 that two or more monomer battery cores 3 are formed in parallel.
Referring to shown in Figure 4, described monomer battery core 3 adopts winding-structure, and order was barrier film 8, cathode pole piece 10, barrier film 8, anode pole piece 9 after described monomer battery core 3 was launched.Described anode pole piece 9 is comprised of aluminum foil current collector and the electrode active material that is coated on the described aluminum foil current collector, and is reserved with the blank aluminium foil of the described electrode active material of uncoated as plus plate current-collecting body 6 in a side; Described cathode pole piece 10 is comprised of Copper Foil collector and the electrode active material that is coated on the described Copper Foil collector, and is reserved with the blank Copper Foil of the described electrode active material of uncoated as negative current collector 7 in a side.
In winding process, the blank aluminium foil of plus plate current-collecting body 6() be positioned at described monomer battery core 3 one sides, the blank Copper Foil of negative current collector 7() be positioned at described monomer battery core 3 opposite sides; In the longitudinal direction, described cathode pole piece 10 all will surpass described anode pole piece 9 reeling initial and finish, and on Width, the coating of described cathode pole piece 10 partly will cover the coating part of described anode pole piece 9 fully; Described barrier film 8 covers cathode pole piece 10 fully and applies the active material parts, anode pole piece 9 is separated with cathode pole piece 10 and does not contact.
Referring to Fig. 3, after coiling was finished, the sidepiece of described anode pole piece 9 and cathode pole piece 10 all was reserved with corresponding collector (blank metal forming) at the two ends, the left and right sides of monomer battery core 3.
Be specially, described anode pole piece 9 left sides have the blank aluminium foil of plus plate current-collecting body 6() be positioned at the left end of described monomer battery core 3, the blank Copper Foil of the negative current collector 7(that described cathode pole piece 10 right sides have) be positioned at the right-hand member of described monomer battery core 3.The generalized section of described monomer battery core 3 along A-A to (left and right directions) as shown in Figure 5.
After monomer battery core 3 completes, with two or more monomer battery core 3 parallel connections, i.e. the positive pole of monomer battery core 3 overlapping and welding with positive pole, negative pole and negative pole are overlapping to be welded together, and namely makes the described battery core utmost point of embodiment of the invention group 2.
After battery core utmost point group 2 combination is finished, respectively to the blank aluminium foil of the plus plate current-collecting body 6(of left end) and the negative current collector 7(blank Copper Foil of right-hand member) carry out prewelding.
Referring to Fig. 2, the blank aluminium foil of described plus plate current-collecting body 6() and positive pole ear 4 fixing welding, the blank Copper Foil of negative current collector 7() fix welding with negative lug 5.
After positive and negative lug welding is finished, it is placed in ready made a slice aluminum-plastic packaging bag, cover again upper another sheet aluminum-plastic packaging bag after putting well, after two packaging bag alignment it is carried out the hot pressing plastic packaging, and strengthen heat-sealing in described positive pole ear 4, negative lug 5.
Need to prove, described positive pole ear 4 is formed from aluminium for adopting, and described negative lug 5 is what be made of copper, the plating nickel on surface of described negative lug 5.
The structure of the flexible packing lithium ion battery of final molding as shown in Figure 1.
The present invention has reduced the overall weight of battery by adopting soft package structure, has improved specific energy and the specific power of battery, simultaneously, adopts winding-structure owing to forming the monomer battery core of battery core utmost point group, has improved stability test and fail safe; Adopt simultaneously collector directly to connect structure, namely collector and lug large tracts of land directly are welded and fixed, so that battery structure is simple, and the afflux function admirable.The lithium-ion-power cell of flexible package of the present invention has alleviated weight on the whole, has increased specific capacity and specific energy, and winding-structure can improve stability and the fail safe of battery, for condition has been created in its application in energy storage field and electric automobile field.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a soft package lithium ion power battery is characterized in that, comprises packaging bag, is packaged with the battery core utmost point group that is formed in parallel by two monomer battery cores that adopt winding-structure to make at least in described packaging bag; Negative current collector and plus plate current-collecting body are established respectively in the two ends, the left and right sides of described monomer battery core utmost point group; Described negative current collector is connected with the negative lug of battery, and described plus plate current-collecting body is connected with the positive pole ear of battery.
2. lithium-ion-power cell according to claim 1 is characterized in that, described plus plate current-collecting body and the welding of described positive pole ear, described negative current collector and the welding of described negative lug.
3. soft package lithium ion power battery according to claim 2 is characterized in that, described plus plate current-collecting body and negative current collector and described positive pole ear, carries out respectively pre-welding before stating negative lug welding.
4. according to right 1 described soft package lithium ion power battery, it is characterized in that, described packaging bag is aluminum-plastic packaging bag, is formed by two case chip packaging by hot pressing up and down.
5. each described soft package lithium ion power battery is characterized in that according to claim 1 ~ 4, and described positive pole ear adopts aluminium material, and described negative lug adopts copper material, plating nickel on surface.
6. soft package lithium ion power battery according to claim 1 is characterized in that, described positive pole ear, negative lug place the both sides of described battery relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104047845A CN102881944A (en) | 2012-10-22 | 2012-10-22 | Flexibly packaged lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104047845A CN102881944A (en) | 2012-10-22 | 2012-10-22 | Flexibly packaged lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102881944A true CN102881944A (en) | 2013-01-16 |
Family
ID=47483186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104047845A Pending CN102881944A (en) | 2012-10-22 | 2012-10-22 | Flexibly packaged lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102881944A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016014554A1 (en) * | 2014-07-21 | 2016-01-28 | Flexel, Llc | Flexible micro-battery |
| CN107452934A (en) * | 2016-05-31 | 2017-12-08 | 万向二三股份公司 | Soft package lithium ion power battery tab welding structure and its welding method |
| CN109093450A (en) * | 2018-07-13 | 2018-12-28 | 武汉锂鑫自动化科技有限公司 | The welding production line and production technology of soft-package battery switching piece |
| CN111112819A (en) * | 2019-12-17 | 2020-05-08 | 深圳市海盈科技有限公司 | Welding method for laminated tab and battery cell |
| US10879503B2 (en) | 2014-07-21 | 2020-12-29 | Johnson & Johnson Vision Care, Inc. | Methods for the manufacture of flexible microbatteries |
| CN112803124A (en) * | 2021-01-30 | 2021-05-14 | 上海兰钧新能源科技有限公司 | Novel electricity core structure, power battery and electric vehicle |
| CN113782888A (en) * | 2021-09-10 | 2021-12-10 | 合肥国轩高科动力能源有限公司 | Power lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100021810A1 (en) * | 2007-12-25 | 2010-01-28 | Byd Co., Ltd. | End cover assembly for an electrochemical cell |
| CN102110855A (en) * | 2011-02-18 | 2011-06-29 | 珠海光宇电池有限公司 | Power lithium ion battery and manufacturing method thereof |
| CN102437377A (en) * | 2011-12-12 | 2012-05-02 | 深圳市格瑞普电池有限公司 | Winding power core, soft-package lithium ion battery and pole piece |
| CN202423438U (en) * | 2011-12-29 | 2012-09-05 | 广东国光电子有限公司 | High-power winding type polymer lithium ion battery |
| CN202454681U (en) * | 2012-02-25 | 2012-09-26 | 佛山市顺德区精锐电池科技有限公司 | High-efficiency lithium ion battery |
-
2012
- 2012-10-22 CN CN2012104047845A patent/CN102881944A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100021810A1 (en) * | 2007-12-25 | 2010-01-28 | Byd Co., Ltd. | End cover assembly for an electrochemical cell |
| CN102110855A (en) * | 2011-02-18 | 2011-06-29 | 珠海光宇电池有限公司 | Power lithium ion battery and manufacturing method thereof |
| CN102437377A (en) * | 2011-12-12 | 2012-05-02 | 深圳市格瑞普电池有限公司 | Winding power core, soft-package lithium ion battery and pole piece |
| CN202423438U (en) * | 2011-12-29 | 2012-09-05 | 广东国光电子有限公司 | High-power winding type polymer lithium ion battery |
| CN202454681U (en) * | 2012-02-25 | 2012-09-26 | 佛山市顺德区精锐电池科技有限公司 | High-efficiency lithium ion battery |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016014554A1 (en) * | 2014-07-21 | 2016-01-28 | Flexel, Llc | Flexible micro-battery |
| CN107078233A (en) * | 2014-07-21 | 2017-08-18 | 庄臣及庄臣视力保护公司 | Flexible micro cell |
| RU2677630C1 (en) * | 2014-07-21 | 2019-01-18 | Джонсон Энд Джонсон Вижн Кэа, Инк. | Flexible microbattery |
| US10593911B2 (en) | 2014-07-21 | 2020-03-17 | Johnson & Johnson Vision Care, Inc. | Flexible micro-battery |
| US10879503B2 (en) | 2014-07-21 | 2020-12-29 | Johnson & Johnson Vision Care, Inc. | Methods for the manufacture of flexible microbatteries |
| CN107452934A (en) * | 2016-05-31 | 2017-12-08 | 万向二三股份公司 | Soft package lithium ion power battery tab welding structure and its welding method |
| CN109093450A (en) * | 2018-07-13 | 2018-12-28 | 武汉锂鑫自动化科技有限公司 | The welding production line and production technology of soft-package battery switching piece |
| CN111112819A (en) * | 2019-12-17 | 2020-05-08 | 深圳市海盈科技有限公司 | Welding method for laminated tab and battery cell |
| CN112803124A (en) * | 2021-01-30 | 2021-05-14 | 上海兰钧新能源科技有限公司 | Novel electricity core structure, power battery and electric vehicle |
| CN112803124B (en) * | 2021-01-30 | 2024-01-12 | 上海兰钧新能源科技有限公司 | Novel electric core structure, power battery and electric vehicle |
| CN113782888A (en) * | 2021-09-10 | 2021-12-10 | 合肥国轩高科动力能源有限公司 | Power lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102881944A (en) | Flexibly packaged lithium ion power battery | |
| CN201766132U (en) | High-capacity polymer lithium ion battery structure | |
| CN103311490B (en) | Power-type lithium ion battery group and manufacture method thereof | |
| CN102013513A (en) | Lithium ion power battery with bidirectional current collectors | |
| CN201466147U (en) | Lithium ion battery with low contact resistance and high rate | |
| CN202231097U (en) | High-rate lithium-ion battery and composite pole piece thereof | |
| CN205543110U (en) | Square power battery | |
| CN204243090U (en) | A kind of high-performance power lithium-ion battery | |
| CN201466094U (en) | Positive plate and negative plate of lithium-ion battery with low contact resistance | |
| CN103219524B (en) | A kind of laminated lithium ion battery plus plate current-collecting body paillon foil, anode pole piece and battery | |
| CN103427111B (en) | A kind of lithium-ion energy storage battery and manufacture method thereof | |
| CN201323134Y (en) | Active carbon combined electrode supercapacitor | |
| CN205388994U (en) | Cylinder power lithium ion battery | |
| CN202549998U (en) | Lithium ion battery | |
| CN203242691U (en) | Dynamic lithium ion battery pack | |
| CN202127072U (en) | Large-capacity high-power lithium ion battery | |
| CN201369367Y (en) | Power lithium battery bare cell with double-tab structure | |
| CN202917600U (en) | Aluminum-plastic packed high-power lithium ion battery | |
| CN202308197U (en) | Polymer lithium ion battery with internal multi-winding-core parallel structure | |
| CN201877530U (en) | Lithium ion power battery with bidirectional current collectors | |
| CN201616479U (en) | Multi-electrode lug lithium ion battery | |
| CN202585616U (en) | Lithium ion battery and pole piece structure thereof | |
| CN211605338U (en) | Multi-lug quick-charging cylindrical lithium battery | |
| CN203434245U (en) | Lithium-ion energy storage battery | |
| CN201789033U (en) | High-power and high-capacity lithium battery device for electric bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |