CN204760501U - Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof - Google Patents
Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof Download PDFInfo
- Publication number
- CN204760501U CN204760501U CN201520365813.0U CN201520365813U CN204760501U CN 204760501 U CN204760501 U CN 204760501U CN 201520365813 U CN201520365813 U CN 201520365813U CN 204760501 U CN204760501 U CN 204760501U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- collector
- ion battery
- laminated
- 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.)
- Active
Links
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 utility model provides a lamination lithium ion battery with and group battery that constitutes with and pole piece thereof, the pole piece includes: the mass flow body and coating are in active material layer on the mass flow body the first width tip end of pole piece has one section continuous not coating regional, regional top surface of coating and bottom surface all the coating have active material layer the coating is not regional the mass flow body exposes outside, and is exposed the conduct of the mass flow body the utmost point ear of pole piece. Use the heat dispersion that this technical scheme is favorable to reducing lithium ion battery's internal resistance and improves the battery.
Description
Technical field
The utility model relates to field of lithium ion battery, particularly relates to a kind of laminated lithium ion battery and its battery pack formed and its pole piece.
Background technology
Lithium ion battery is due to the characteristic of its environmental protection and energy saving, instead of traditional energy more and more widely, it can be the most promising current power source, more and more being widely used as power provides energy source use to arrive various field, for example lithium ion battery is more and more widely used in electric automobile, as the power source of electric automobile.
The present inventor is carrying out finding in research process of the present utility model, and the lithium ion battery of prior art exists following defect in application process:
Powerful lithium ion battery operationally, lithium ion battery produces heat and causes the temperature of battery to raise, and lithium ion battery is more responsive to variations in temperature, when the temperature of battery exceeds its normal temperature range, the electric property of its battery can reduce with the rising of temperature, and the performance change of the higher battery of temperature is larger, if temperature is too high, also may cause battery explosion, cause potential safety hazard.
Utility model content
One of object of the utility model embodiment is to provide a kind of laminated lithium ion battery and its battery pack formed and its pole piece.Apply this technical scheme be conducive to reducing the internal resistance of lithium ion battery and improve the heat dispersion of battery.
A kind of laminated lithium ion battery that the utility model embodiment provides, comprising: laminated battery core body and housing, and described laminated battery core body is encapsulated in described housing,
Described laminated battery core body, the membrane layer comprising positive plate, negative plate and to be interposed between every positive plate and negative plate;
Each described positive plate comprises the first collector and is coated in the positive electrode active material layer on described first collector, one section of uncoated region of continuous print is had at the first width end end of described positive plate, the end face in described uncoated region and bottom surface is all uncoated described positive electrode active material layer, described in described uncoated region, the first collector is outside exposed, exposed described first collector is as the anode ear of described positive plate
Each exposed described first collector is all positioned at a width end of described laminated battery core body, and exposed described first collector stacked on top of one another contacts connection face-to-face, as the positive pole of described laminated battery core body, the positive pole of described laminated battery core body is connected with the first metal decking of described housing;
Each described negative plate comprises the second collector, the negative electrode active material layer be coated on described second collector, one section of uncoated region of continuous print is had at the first width end end of described negative plate, the end face in described uncoated region and bottom surface is all uncoated described negative electrode active material layer, described in described uncoated region, the second collector is outside exposed, exposed described second collector is as the negative electrode lug of described negative plate
Each exposed described second collector is all positioned at another width end of described laminated battery core body, and exposed described second collector stacked on top of one another contacts connection face-to-face, as the negative pole of described laminated battery core body, the negative pole of described laminated battery core body is connected with the second metal decking of described housing, described second metal decking and described first metal decking are the panel of described housing, are connected between them by insulating element.
Alternatively, the end segment of the positive pole of described laminated battery core body, is welded on the inwall of described first metal decking face-to-face.
Alternatively, the end segment of the negative pole of described laminated battery core body, is welded on the inwall of described second metal decking face-to-face.
Alternatively, the width everywhere of described first collector is consistent.
Alternatively, the width everywhere of described second collector is consistent.
Alternatively, described first metal decking, the second metal decking are facing each other on the housing.
Alternatively, described first metal decking, the second metal decking are respectively: L shape metal decking.
Alternatively, described first metal decking, the setting facing each other of the second metal decking,
Connected by L shape insulating panel or arc insulating panel between the end face that described first metal decking, the second metal decking are relative.
Alternatively, on each described positive plate, described positive electrode active material layer is covered to the end of the second width end of described positive plate.
Alternatively, on each described negative plate, described negative electrode active material layer is covered to the end of the second width end of described negative plate.
The utility model embodiment provides a kind of Li-ion batteries piles rearranged by above-mentioned arbitrary described laminated lithium ion battery.
Alternatively, for two lithium ion batteries of arbitrary neighborhood, wherein the first metal decking of a lithium ion battery contacts face-to-face with the second metal decking of another lithium ion battery and gets together.
Alternatively, each described lithium ion battery is connected in parallel and forms described Li-ion batteries piles:
Also comprise the first hardware, the second hardware,
Described first hardware contacts, as the positive pole of described Li-ion batteries piles with the described first metal plate opposite of each described lithium ion battery;
Described second hardware contacts, as the negative pole of described Li-ion batteries piles with the described second metal plate opposite of each described lithium ion battery.
Alternatively, at described Li-ion batteries piles body and be encapsulated between this external battery housing of described Li-ion batteries piles and be also provided with at least one pressure sensor.
A kind of pole piece being applicable to laminated lithium ion battery that the utility model embodiment provides, it comprises:
Collector and the active material layer be coated on described collector, one section of uncoated region of continuous print is had at the first width end end of described pole piece, the end face in described uncoated region and bottom surface is all uncoated described active material layer, described in described uncoated region, collector is outside exposed, and exposed described collector is as the lug of described pole piece.
Alternatively, the width everywhere of described collector is consistent.
Alternatively, on described pole piece, described active material layer is covered to the end of the second width end of described pole piece.
Therefore application technique scheme can have following technique effect:
When the pole piece of application the present embodiment makes laminated lithium ion battery, make positive plate, the exposed collector of the width end of negative plate lays respectively at two relative width end of laminated battery core body, link together stacked for collector exposed for each width end side face-to-face, form the positive pole and the negative pole that lay respectively at this battery core body of two relative width end of battery core body, when carrying out cell package, the end of the stacked exposed collector linked together of battery core body two width end is only needed to be welded in the two panels on housing, using the two panels on housing as the positive pole of this lithium ion battery and negative pole.
On the one hand, the laminated lithium ion battery of the present embodiment is without the need to soldering polar ear, save tab welding operation, and directly exposed one section of collector using as the positive pole of lithium ion battery and negative pole, more be conducive to the heat radiation of inside lithium ion cell, reduce inside lithium ion cell thermal accumlation and cause temperature too high, guaranteeing that lithium ion battery has good heat dispersion.
On the other hand, for the lithium ion battery of the aluminum plastic film encapsulation connected relative to the employing tab welding of prior art, the positive pole of the lithium ion battery of the present embodiment and the collector area of negative pole increase, and the collector of both positive and negative polarity is welded direct on the panel as shell, collector is increased without the need to increasing the volume of battery, be conducive to the internal resistance reducing battery, temperature when improving the capacity of battery and reduce battery high-multiplying power discharge.The present embodiment technical scheme is specially adapted to the lithium ion battery of high-power high-multiplying power discharge.
On the one hand, the present embodiment is using the panel of the housing of lithium ion battery as the positive pole of battery and negative pole, when carrying out lithium ion battery pack combination, can be made by the face-to-face contact between the panel of lithium ion battery that lithium ion battery is arranged together can be realized the series connection of each lithium ion battery and be connected in parallel, the assembling of its battery pack is convenient, connect without the need to welding leads, and when a certain lithium ion battery in Li-ion batteries piles breaks down, when keeping in repair, the good direct lithium ion battery by fault takes off slowly, contacting face-to-face again of other is got together, it changes convenient, flexibly.
As the signal of the present embodiment, the present embodiment can also arrange one or more pressure sensor between the Li-ion batteries piles body be made up of multiple lithium ion battery and battery housing, by the pressure between pressure sensor monitoring cell group body and battery housing, and detect the current state of Li-ion batteries piles, whether expand or whether expand excessive situation, to monitor the state of Li-ion batteries piles at any time, avoid lithium ion battery parectasis and cause the potential safety hazards such as blast.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, does not form improper restriction of the present utility model.
A kind of pole piece structure schematic diagram being applicable to laminated lithium ion battery that Fig. 1 provides for the utility model embodiment 1;
The pole piece displacement structure figure of the lamination lithium-ion electric core body that Fig. 2 provides for the utility model embodiment 2;
The casing packing structure schematic diagram of the video disc lithium ion battery that Fig. 3 provides for the utility model embodiment 2;
Fig. 4 is the structural representation of the first metal decking in the utility model embodiment 2, the second metal decking;
Fig. 5 is the structural representation of the second metal decking in the utility model embodiment 2;
The structural representation being made up of battery pack the laminated lithium ion battery in embodiment 2 that Fig. 6 provides for the utility model embodiment 3.
Reference numeral:
101: collector; 102: active material layer; 103: uncoated region;
201: negative electrode lug; 202: anode ear; 401: the second metal deckings;
501: the first metal deckings.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Embodiment 1:
Shown in Figure 1, present embodiments provide a kind of pole piece being applicable to laminated lithium ion battery, this pole piece comprises: collector 101, the active material layer 102 be coated on collector 101.
Active material layer 102 is coated to the end of the first width end of pole piece, one section of uncoated region 103 of continuous print is reserved with at the end of the second width end of pole piece, the front in this uncoated district and bottom surface are all uncoated active material layer 102, the collector 101 being positioned at uncoated region 103 is outside exposed, when applying this pole piece, can using exposed collector 101 as the lug of pole piece, and without the need to other soldering polar ear.
The length of the exposed collector 101 in the present embodiment can pre-determine, and makes the length of exposed collector 101 longer, make its can as bent, be welded to connect with external component.
As the signal of the present embodiment, the width of the active material layer 102 on the present embodiment pole piece and pole piece with wide, namely with collector 101 with wide.
As the signal of the present embodiment, the collector 101 of the present embodiment is rectangular-shaped, makes the exposed collector 101 sections in pole piece one width end identical with the width of other sections of this collector 101.
As the signal of the present embodiment, collector 101 width everywhere of the present embodiment pole piece is consistent, and the width of namely exposed collector 101 is consistent with the width of pole piece.When carrying out the cutting of pole piece cross cutting without the need to the collector 101 of width end end is cut out narrow, make the die-cutting process of pole piece, die-cutting mould simpler, and the present embodiment using with pole piece with the lug of wide exposed collector 101 as pole piece, and without the need to other soldering polar ear.When the pole piece applying the present embodiment makes laminated lithium ion battery, the internal resistance of the both positive and negative polarity of the present embodiment laminated lithium ion battery is less, more be conducive to the capacity improving battery, and the volume of the both positive and negative polarity of the present embodiment battery is larger, and collector 101 integrated molding of both positive and negative polarity and pole piece, more be conducive to the heat conduction of inside battery, be conducive to the heat of deriving inside battery, avoid battery temperature too high.
The present embodiment pole piece structure can be applied to positive plate, also can be applied to negative plate.
When being applied to positive plate, this collector 101 can be, but not limited to aluminium paillon foil, and its active material layer 102 is for comprising the positive electrode active material layer 102 of lithium ion active material.
When being applied to negative plate, this collector 101 can be, but not limited to select copper foil, and its active material layer is negative electrode active material layer 102.
Embodiment 2:
Shown in Fig. 2-5, present embodiments provide the structure that the positive plate of structure described in a kind of Application Example 1 and negative plate make a kind of lamination lithium-ion electric core body.
Shown in Figure 2, in the present embodiment, the collector of positive plate is designated as the first collector, at a width end end of positive plate, the first exposed collector can as the lug of positive plate (i.e. anode ear 202).The collector of negative plate is designated as the second collector, and at a width end end of negative plate, the second exposed collector section can as the lug of negative plate (i.e. negative electrode lug 201).
Adopt lamination process, positive plate, negative plate is stacked together, be separated with a membrane layer between making between the positive plate of arbitrary neighborhood and negative plate respectively.Positive plate, negative plate and barrier film are up and down just to stacked composition one laminated battery core body.
Shown in Figure 3, on this laminated battery core body, the width end end of all positive plates, the first exposed collector be all positioned at the first width end of laminated battery core body, the first exposed for each layer collector stacked on top of one another is contacted connection (such as electric welding, Laser Welding or riveted joint etc.) together, face-to-face as the positive pole of this laminated battery core body.Width end end, the second exposed collector of all negative plates are all positioned at the second width end of laminated battery core body, in like manner, the second exposed for each layer collector stacked on top of one another are contacted face-to-face and link together, as the negative pole of this laminated battery core body.
After obtaining laminated battery core body, laminated battery core body is encapsulated in a housing, wherein this housing at least comprises the first metal decking 501 and the second metal decking 401, first metal decking 501, second metal decking 401 is respectively the panel of housing, by insulating element connection, mutually insulated isolation between them.
When the laminated battery core body of the present embodiment is assemblied in housing, stacked on top of one another is contacted the end forming holistic the first exposed collector linked together face-to-face, be connected to (such as being welded to by electric welding or laser welding on the inwall of the first metal decking 501) on the first metal decking 501 of housing, this first metal decking 501 is as the positive pole of the laminated lithium ion battery of the present embodiment.
In like manner, stacked on top of one another is contacted the end forming holistic the second exposed collector linked together face-to-face, be connected on the second metal decking 401 of housing, this second metal decking 401 is as the negative pole of the laminated lithium ion battery of the present embodiment.
As the signal of the present embodiment, on the housing of the present embodiment laminated battery core body, first metal decking 501, second metal decking 401 can be, but not limited to setting facing each other, and make an end face of laminated lithium ion battery housing be positive pole, another opposing end surface is negative pole.
As the signal of the present embodiment, such as can be, but not limited to select flat board as the first metal decking 501 and the second metal decking 401.
As the signal of the present embodiment, L shape metal decking can also be selected as first metal decking 501, second metal decking 401 of the present embodiment, can be, but not limited to this two L shape metal decking opening is oppositely arranged, L shape insulating panel or arc insulating panel is adopted to connect at the joint of two L shape metal deckings, mutually insulated between two L shape metal deckings is linked together, such that two adjacent surfaces of the housing of lithium ion battery are positive pole, its relative other two adjacent surfaces are negative pole.
As the signal of the present embodiment, above-mentioned positive pole using two sides as lithium ion battery, two sides are signal as the negative pole of lithium ion battery, but be actually not limited in this, can also but the positive pole be not limited to using three of housing sides as lithium ion battery, using other three sides as the negative pole of lithium ion battery.
Adopt the polyhedral metal of the present embodiment to form as the first metal decking 501, second metal decking 401, being conducive to when carrying out battery combination, improving the diversity of lithium ion battery orientation, further facilitate the permutation and combination assembling of lithium ion battery.
Embodiment 3:
Shown in Figure 6, present embodiments provide a kind of Li-ion batteries piles be made up of the laminated lithium ion battery described in embodiment 2.
When utilizing the laminated lithium ion battery of embodiment 2 to be composed in series Li-ion batteries piles, make each lithium ion battery respectively face-to-face contact get together arrangement and can form a Li-ion batteries piles, specifically, to two laminated lithium ion batteries of arbitrary neighborhood, first metal decking 501 of the housing of one laminated lithium ion battery is contacted face-to-face with the second metal decking 401 of the housing of another laminated lithium ion battery get together, being connected in series between laminated lithium ion battery can be realized.Visible, when the laminated lithium ion battery of application the present embodiment forms battery pack, due to the plane of positive and negative very its housing of battery, therefore only need between battery to contact to get together face-to-face to realize being connected in series between laminated lithium ion battery, and without the need to adopting wire to connect, make being connected of battery pack more flexible, be easier to operation.
When utilizing the laminated lithium ion battery of the present embodiment to compose in parallel Li-ion batteries piles, all battery cells can be made mutually to rearrange battery row, first metal decking 501 of the positive pole as battery cell is in line, be all positioned at battery row one outside (being the first side), the second metal decking 401 as the negative pole of battery cell is all in line, outside another relative with the first metal decking 501 being all positioned at battery row (being the second side), can respectively by the first hardware after arrangement, second hardware covers the first side of battery row respectively face-to-face, on second side, compress the first hardware, second hardware, each first metallic plate in making them arrange with battery respectively, second metal plate opposite contact tightly gets together, now, each laminated lithium ion battery forms Li-ion batteries piles in parallel, first hardware, second hardware is respectively as the positive pole of Li-ion batteries piles, and negative pole.
Therefore application technique scheme can have following technique effect:
When the pole piece of application the present embodiment makes laminated lithium ion battery, make positive plate, the exposed collector of the width end of negative plate lays respectively at two relative width end of laminated battery core body, link together stacked for collector exposed for each width end side face-to-face, form the positive pole and the negative pole that lay respectively at this battery core body of two relative width end of battery core body, when carrying out cell package, the end of the stacked exposed collector linked together of battery core body two width end is only needed to be welded in the two panels on housing, using the two panels on housing as the positive pole of this lithium ion battery and negative pole.
On the one hand, the laminated lithium ion battery of the present embodiment is without the need to soldering polar ear, save tab welding operation, and directly exposed one section of collector using as the positive pole of lithium ion battery and negative pole, more be conducive to the heat radiation of inside lithium ion cell, reduce inside lithium ion cell thermal accumlation and cause temperature too high, guaranteeing that lithium ion battery has good heat dispersion.
On the other hand, for the lithium ion battery of the aluminum plastic film encapsulation connected relative to the employing tab welding of prior art, the positive pole of the lithium ion battery of the present embodiment and the collector area of negative pole increase, and the collector of both positive and negative polarity is welded direct on the panel as shell, collector is increased without the need to increasing the volume of battery, be conducive to the internal resistance reducing battery, temperature when improving the capacity of battery and reduce battery high-multiplying power discharge.The present embodiment technical scheme is specially adapted to the lithium ion battery of high-power high-multiplying power discharge.
On the one hand, the present embodiment is using the panel of the housing of lithium ion battery as the positive pole of battery and negative pole, when carrying out lithium ion battery pack combination, can be made by the face-to-face contact between the panel of lithium ion battery that lithium ion battery is arranged together can be realized the series connection of each lithium ion battery and be connected in parallel, the assembling of its battery pack is convenient, connect without the need to welding leads, and when a certain lithium ion battery in Li-ion batteries piles breaks down, when keeping in repair, the good direct lithium ion battery by fault takes off slowly, contacting face-to-face again of other is got together, it changes convenient, flexibly.
As the signal of the present embodiment, the present embodiment can also arrange one or more pressure sensor between the Li-ion batteries piles body be made up of multiple lithium ion battery and battery housing, by the pressure between pressure sensor monitoring cell group body and battery housing, and detect the current state of Li-ion batteries piles, whether expand or whether expand excessive situation, to monitor the state of Li-ion batteries piles at any time, avoid lithium ion battery parectasis and cause the potential safety hazards such as blast.
analysis of experimental data:
In order to further illustrate the technique effect of this enforcement 1,2,3, below in conjunction with experimental data, its effect is analyzed:
Experimental example:
Present embodiments provide a kind of laminated lithium ion battery, the specification of this lithium ion battery is ASP7042126-S2A.Wherein, AS represents pure cobalt water-base cathode, and 7042126 represent that the thick, wide, long of this polymer Li-ion battery is of a size of 7mm, 42mm, 126mm, and S represents that nominal multiplying power is 20C, and 2 represent that battery is high capacity type, and A represents just very pure cobalt acid lithium.
The positive plate of this lithium ion battery, negative plate respectively as shown in Fig. 1 in embodiment 1, shown in Fig. 2 that the structure of this laminated lithium ion battery provides as embodiment 2.
The housing of this experimental example battery and the annexation of laminated battery core body and housing are as shown in Fig. 2 in embodiment 2.
Adopt the assembled arrangement structure described in enforcement 3, the laminated lithium ion battery of 50 said structures is composed in series a Li-ion batteries piles, is designated as Li-ion batteries piles experimental example.
Reference examples:
The specification of the laminated lithium ion battery battery of the present embodiment is with experimental example 1.Its structure is shown in Figure 3, as seen from Figure 3, the pole piece forming this laminated lithium ion battery is shown in Figure 2, a tab welding position is reserved with in the width end of pole piece, the tab welding position of positive plate, negative plate lays respectively at two relative width end of laminated battery core body, tab welding portion stacked for each width end is mediated face-to-face and welds together, and then soldering polar ear bar (posting tab on this lug bar), then adopt aluminum plastic film encapsulation composition one lithium ion battery.
The laminated lithium ion battery of 50 said structures is connected to form a Li-ion batteries piles by wired in series, is designated as Li-ion batteries piles reference examples.
Obtained above-mentioned laminated lithium ion battery experimental example, laminated lithium ion battery group experimental example, laminated lithium ion battery reference examples, laminated lithium ion battery group reference examples respectively, obtain two groups of chance samples 100, circulation test is carried out to wherein one group of grab sample, battery surface temperature is measured after continuous 100 cycle periods, temperature is averaged, thermal shock test is carried out to another group random sampling, obtains the experimental data table of comparisons shown in table one:
| Project | Circulation 100 weeks temperature | Thermal shock (160 DEG C of 30min) |
| Cell Experimentation An example | 42℃ | 92％pass |
| Battery reference examples | 56℃ | 46％pass |
| Battery pack experimental example | 44℃ | --- |
| Battery pack reference examples | 62℃ | --- |
Therefore, adopt the present embodiment technical scheme, be conducive to the temperature greatly reducing the laminated lithium ion battery adopting the present embodiment pole piece, avoid the problem that temperature rise in use procedure is too high, and adopt the present embodiment technical scheme to also help the thermal shock resistance improving battery, improve the fail safe of battery.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The amendment done within any spirit at above-mentioned execution mode and principle, equivalently to replace and improvement etc., within the protection range that all should be included in this technical scheme.
Claims (17)
1. a laminated lithium ion battery, is characterized in that, comprising: laminated battery core body and housing, and described laminated battery core body is encapsulated in described housing,
Described laminated battery core body, the membrane layer comprising positive plate, negative plate and to be interposed between every positive plate and negative plate;
Each described positive plate comprises the first collector and is coated in the positive electrode active material layer on described first collector, one section of uncoated region of continuous print is had at the first width end end of described positive plate, the end face in described uncoated region and bottom surface is all uncoated described positive electrode active material layer, described in described uncoated region, the first collector is outside exposed, exposed described first collector is as the anode ear of described positive plate
Each exposed described first collector is all positioned at a width end of described laminated battery core body, and exposed described first collector stacked on top of one another contacts connection face-to-face, as the positive pole of described laminated battery core body, the positive pole of described laminated battery core body is connected with the first metal decking of described housing;
Each described negative plate comprises the second collector, the negative electrode active material layer be coated on described second collector, one section of uncoated region of continuous print is had at the first width end end of described negative plate, the end face in described uncoated region and bottom surface is all uncoated described negative electrode active material layer, described in described uncoated region, the second collector is outside exposed, exposed described second collector is as the negative electrode lug of described negative plate
Each exposed described second collector is all positioned at another width end of described laminated battery core body, and exposed described second collector stacked on top of one another contacts connection face-to-face, as the negative pole of described laminated battery core body, the negative pole of described laminated battery core body is connected with the second metal decking of described housing, described second metal decking and described first metal decking are the panel of described housing, are connected between them by insulating element.
2. laminated lithium ion battery according to claim 1, is characterized in that,
The end segment of the positive pole of described laminated battery core body, is welded on the inwall of described first metal decking face-to-face.
3. laminated lithium ion battery according to claim 1, is characterized in that,
The end segment of the negative pole of described laminated battery core body, is welded on the inwall of described second metal decking face-to-face.
4. laminated lithium ion battery according to claim 1, is characterized in that,
The width everywhere of described first collector is consistent.
5. laminated lithium ion battery according to claim 1, is characterized in that,
The width everywhere of described second collector is consistent.
6., according to arbitrary described laminated lithium ion battery of claim 1 to 5, it is characterized in that,
Described first metal decking, the second metal decking are facing each other on the housing.
7., according to arbitrary described laminated lithium ion battery of claim 1 to 5, it is characterized in that,
Described first metal decking, the second metal decking are respectively: L shape metal decking.
8. laminated lithium ion battery according to claim 7, is characterized in that,
Described first metal decking, the setting facing each other of the second metal decking,
Connected by L shape insulating panel or arc insulating panel between the end face that described first metal decking, the second metal decking are relative.
9., according to arbitrary described laminated lithium ion battery of claim 1 to 5, it is characterized in that,
On each described positive plate, described positive electrode active material layer is covered to the end of the second width end of described positive plate.
10., according to arbitrary described laminated lithium ion battery of claim 1 to 5, it is characterized in that,
On each described negative plate, described negative electrode active material layer is covered to the end of the second width end of described negative plate.
11. 1 kinds of Li-ion batteries piles, is characterized in that being rearranged by arbitrary described laminated lithium ion battery of at least two claims 1 to 10.
12. Li-ion batteries piles according to claim 11, is characterized in that,
For two lithium ion batteries of arbitrary neighborhood, wherein the first metal decking of a lithium ion battery contacts face-to-face with the second metal decking of another lithium ion battery and gets together.
13. Li-ion batteries piles according to claim 11, is characterized in that,
Each described lithium ion battery is connected in parallel and forms described Li-ion batteries piles:
Also comprise the first hardware, the second hardware,
Described first hardware contacts, as the positive pole of described Li-ion batteries piles with the described first metal plate opposite of each described lithium ion battery;
Described second hardware contacts, as the negative pole of described Li-ion batteries piles with the described second metal plate opposite of each described lithium ion battery.
14. Li-ion batteries piles according to claim 11 or 12 or 13, is characterized in that,
At described Li-ion batteries piles body and be encapsulated between this external battery housing of described Li-ion batteries piles and be also provided with at least one pressure sensor.
15. 1 kinds of pole pieces being applicable to laminated lithium ion battery, is characterized in that, comprising:
Collector and the active material layer be coated on described collector, one section of uncoated region of continuous print is had at the first width end end of described pole piece, the end face in described uncoated region and bottom surface is all uncoated described active material layer, described in described uncoated region, collector is outside exposed, and exposed described collector is as the lug of described pole piece.
16. pole pieces being applicable to laminated lithium ion battery according to claim 15, is characterized in that,
The width everywhere of described collector is consistent.
17. pole pieces being applicable to laminated lithium ion battery according to claim 15 or 16, is characterized in that,
On described pole piece, described active material layer is covered to the end of the second width end of described pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365813.0U CN204760501U (en) | 2015-05-30 | 2015-05-30 | Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520365813.0U CN204760501U (en) | 2015-05-30 | 2015-05-30 | Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760501U true CN204760501U (en) | 2015-11-11 |
Family
ID=54475181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520365813.0U Active CN204760501U (en) | 2015-05-30 | 2015-05-30 | Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204760501U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882635A (en) * | 2015-05-30 | 2015-09-02 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery, battery pack comprising same and pole piece of laminated lithium ion battery |
| WO2019001468A1 (en) * | 2017-06-28 | 2019-01-03 | 湖南妙盛汽车电源有限公司 | Lithium-ion power battery |
| US11668756B2 (en) | 2020-09-25 | 2023-06-06 | Google Llc | Battery degradation monitoring system and methods |
| US11680918B2 (en) | 2020-09-25 | 2023-06-20 | Google Llc | Thermal gradient battery monitoring system and methods |
| US12057592B2 (en) | 2020-09-25 | 2024-08-06 | Google Llc | Battery expansion control system |
-
2015
- 2015-05-30 CN CN201520365813.0U patent/CN204760501U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882635A (en) * | 2015-05-30 | 2015-09-02 | 深圳市格瑞普电池有限公司 | Laminated lithium ion battery, battery pack comprising same and pole piece of laminated lithium ion battery |
| WO2019001468A1 (en) * | 2017-06-28 | 2019-01-03 | 湖南妙盛汽车电源有限公司 | Lithium-ion power battery |
| US11668756B2 (en) | 2020-09-25 | 2023-06-06 | Google Llc | Battery degradation monitoring system and methods |
| US11680918B2 (en) | 2020-09-25 | 2023-06-20 | Google Llc | Thermal gradient battery monitoring system and methods |
| US12050190B2 (en) | 2020-09-25 | 2024-07-30 | Google Llc | Thermal gradient battery monitoring system and methods |
| US12057592B2 (en) | 2020-09-25 | 2024-08-06 | Google Llc | Battery expansion control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104882635A (en) | Laminated lithium ion battery, battery pack comprising same and pole piece of laminated lithium ion battery | |
| CN204760501U (en) | Lamination lithium ion battery with and group battery that constitutes with and pole piece thereof | |
| CN102823023B (en) | There is the battery of multiple battery cell | |
| JP3591523B2 (en) | Battery pack | |
| US20130196210A1 (en) | Lithium Secondary Battery Having Multi-Directional Lead-Tab Structure | |
| US20080213657A1 (en) | High Capacity Lithium Ion Secondary Battery with Metal Case | |
| US11121439B2 (en) | Secondary battery | |
| JP3173575U (en) | Lithium-ion battery module structure | |
| JP6948645B2 (en) | battery | |
| CN105703015A (en) | Laminated lithium ion battery | |
| WO2020192206A1 (en) | Battery, electrical apparatus and cell installation method | |
| JP2014026980A (en) | Electrochemical device | |
| CN206961931U (en) | A kind of cylindrical batteries | |
| JP2016207267A (en) | Battery pack | |
| CN104600236A (en) | Heavy-current lithium-ion battery pack | |
| CN110783619A (en) | Lithium battery with self-heating function and preparation method thereof | |
| JP2010527499A (en) | Electrochemical cell and energy storage device | |
| WO2008074239A1 (en) | Stacked-type lithium ion battery | |
| CN102779970B (en) | Pole ear output connector for multi-layer positive-negative pole of high ratio power poly-lithium battery | |
| CN202259518U (en) | Combined lithium battery with welded tabs | |
| CN107331826B (en) | Connection method of power battery pack and battery pack produced by using same | |
| CN201601187U (en) | Lithium ion battery | |
| CN204204982U (en) | A kind of fastening lithium ionic cell | |
| JP2010033937A (en) | Lithium-ion battery | |
| JP2010525552A (en) | Electrochemical unit cell and energy storage device with welding point connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |