CN209675314U - Imbrication Double-sided battery pack - Google Patents
Imbrication Double-sided battery pack Download PDFInfo
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- CN209675314U CN209675314U CN201920277194.8U CN201920277194U CN209675314U CN 209675314 U CN209675314 U CN 209675314U CN 201920277194 U CN201920277194 U CN 201920277194U CN 209675314 U CN209675314 U CN 209675314U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to imbrication Double-sided battery packs.Imbrication Double-sided battery pack is constituted by multiple cell pieces are stacked, each cell piece has front and the back side opposite with front, front has front electrode, the back side has the rear electrode for being parallel to front electrode and being located at opposite side, the back side further includes a plurality of back side grid line for extending parallel to each other and intersecting with rear electrode, and the rear electrode of top cell piece is connect with the front electrode of underlying battery piece in two adjacent cell pieces when cell piece is stacked.Rear electrode include main body and be connected to body side for carrying out overlapped clinch with a plurality of back side grid line, for bond the main body of the conductive glue of the front electrode of the rear electrode and underlying battery piece of top cell piece in two adjacent cell pieces overleaf electrode.
Description
Technical field
The utility model relates to a kind of solar battery, in particular to a kind of imbrication Double-sided battery pack.
Background technique
As the conventional fossil energy consumption speed such as worldwide coal, petroleum, natural gas is accelerated, ecological environment constantly deteriorates,
Especially greenhouse gas emission leads to increasingly serious Global climate change, and the sustainable development of human society has been subjected to seriously
It threatens.In view of the storage of non-renewable energy resources is limited, and conventional fossil energy brings serious environmental pollution, countries in the world
Respective energy development strategy is formulated, one after another to cope with the finiteness and development and utilization bring environment of conventional fossil energy resources
Problem.Under this world trends, solar energy is filled by its reliability, safety, popularity, longevity, the feature of environmental protection, resource
The characteristics of foot, has become one of most important renewable energy, is expected to become the mainstay of the following global power supply.
Widely popularize and background using solar energy green energy resource under, through scientific research personnel the study found that imbrication component skill
Art can be obviously improved component power.Imbrication technology is designed by special graph, full wafer solar battery is cut into again small
Figure, then adjacent two panels is glued together using conducting resinl, to be prepared into component.Imbrication technology passes through to the excellent of modular construction
Change, reduces interconnecting strip, Module Dissipation can be reduced, improve the output power of component.The two-sided double glass of imbrication can be obviously improved component
Comprehensive power, component power can be obviously improved by reducing imbrication lap, and low lap requires narrow electrode width.
In addition, the back side grid line of imbrication double-side cell and the connection of rear electrode also influence mentioning for imbrication component power
It rises.Existing double-side cell back side grid line and rear electrode overlapping mode have direct overlapping mode and grid line overlap joint rear electrode side
Formula.Direct overlapping mode is as shown in Fig. 7 A, 7B, and wherein Fig. 7 A is the state that do not overlap, and Fig. 7 B is to have overlapped state, clear from figure
As it can be seen that each grid line 1 is directly overlapped in rear electrode 2, the overlapping regions of back side grid line 1 and rear electrode 2 is formed.Grid line
Rear electrode mode is overlapped as shown in Fig. 8 A, 8B, wherein Fig. 8 A is the state that do not overlap, and Fig. 8 B is to have overlapped state, clear from figure
Chu forms back side grid line 1 and rear electrode 2 as it can be seen that all grid lines 1 overlap after linking together to rear electrode 2 again
Overlapping regions.
These overlapping modes in the prior art have the following problems: firstly, back side grid line and rear electrode overlap
Domain overleaf forms difference in height at electrode.As shown in fig. 9 a and fig. 9b, wherein back side grid line 1 and rear electrode 2 and front electrode 5
The place of connecting is met due to multiple surfaces will form difference in height, and Fig. 9 A and Fig. 9 B are respectively the excessive and how many situation of conducting resinl,
Wherein conducting resinl excessively leads to connection injustice, waste conducting resinl, and conducting resinl is very few to cause back side grid line 1 to make somebody a mere figurehead adjacent cell piece 8,
Conducting resinl cannot effectively fill the gap between cell piece.Again, as shown in Figure 9 C, the overleaf overlap of grid line and welding
Domain, back side grid line 1 make somebody a mere figurehead welding 7, overleaf form gap between grid line 1, rear electrode 2 and welding 7, cause effective welding surface
Product becomes smaller.
Due to the influence of three above factor, cause to connect not between cell piece and cell piece in imbrication component manufacturing process
Good, the welding of rear electrode and lead-out wire rosin joint easy to form influences process rate, limits overlapping widths, is unfavorable for imbrication group
The promotion of part power.
Therefore a kind of improved imbrication Double-sided battery pack that can overcome disadvantages described above is needed.
Utility model content
To overcome the above problem in the prior art, the utility model provides a kind of imbrication Double-sided battery pack.Specifically
Content is as follows.
(1) a kind of imbrication Double-sided battery pack is constituted by multiple cell pieces are stacked, each cell piece have front and with
The opposite back side in the front, front have front electrode, and the back side has the back side electricity for being parallel to front electrode and being located at opposite side
Pole, the back side further include a plurality of back side grid line for extending parallel to each other and intersecting with rear electrode, two adjacent cell pieces when being stacked
The rear electrode of middle top cell piece is connect with the front electrode of underlying battery piece, wherein rear electrode includes main body and connection
To body side for a plurality of back side grid line clinch that carries out that overlapped, for bonding top battery in two adjacent cell pieces
The conductive glue of the front electrode of the rear electrode and underlying battery piece of piece is overleaf in the main body of electrode.
(2) such as the imbrication Double-sided battery pack of (1) Xiang Suoshu, wherein set in the edge of imbrication Double-sided battery pack
There is the lead-out wire for drawing electric current, the lead-out wire is only connect with the main body of rear electrode.
(3) such as (1) item or the imbrication Double-sided battery pack of (2) Xiang Suoshu, wherein the clinch is to protrude from master
The multiple portions extended except the portion of side along side.
(4) imbrication component as described such as (3) item, wherein the multiple part is to protrude from outside main body, along side
Truncated cone shape, semicircle, triangle or the polygon segments that face extends.
(5) such as (1) item or the imbrication Double-sided battery pack of (2) Xiang Suoshu, wherein the clinch is added in master
The those widened sections extended except body along side.
(6) such as (1) item or the imbrication Double-sided battery pack of (2) Xiang Suoshu, wherein the thickness of rear electrode is less than back
The thickness of face grid line.
(7) as (3) Xiang Suoshu imbrication Double-sided battery pack, wherein the clinch (3) of the rear electrode (2) and
Main body is integrally to print.
Imbrication Double-sided battery pack according to the present utility model, overcomes foregoing problems existing in the prior art, avoids
Overleaf electrode welding region forms difference in height, improves the connection between cell piece and cell piece, while increasing back side electricity
The efficient weld area of pole and lead-out wire improves the Weldability of component, and allows to design narrower electrode area, with
Trend with the lower lap of imbrication component.
Detailed description of the invention
Fig. 1 shows the rear electrode that the utility model embodiment does not cut cell piece.
Fig. 2 shows the back side grid lines that the utility model embodiment does not cut cell piece.
Fig. 3 shows the front view for not cutting cell piece of the utility model embodiment.
Fig. 4 A shows back side grid line and rear electrode under the non-overlap joint state of the utility model embodiment.
Fig. 4 B shows back side grid line and rear electrode under the state of overlap joint of the utility model embodiment.
Fig. 5 shows the imbrication Double-sided battery pack of the utility model embodiment.
Fig. 6 A shows the amplification sectional view along C-C cutting of a-quadrant in Fig. 5 of the utility model embodiment, wherein for
For the sake of clear, the top cell piece back side and the positive electrode of underlying battery piece and grid line and conducting resinl therebetween illustrate only.
Fig. 6 B shows the amplification sectional view along C-C cutting of B area in Fig. 5 of the utility model embodiment, wherein for
For the sake of clear, the electrode and grid line and welding at the cell piece back side illustrate only.
Fig. 7 A shows back side grid line and rear electrode under one kind overlap joint state non-in the prior art.
Fig. 7 B shows a kind of back side grid line and rear electrode under overlap joint state in the prior art.
Fig. 8 A shows back side grid line and rear electrode under another overlap joint state non-in the prior art.
Fig. 8 B shows another back side grid line and rear electrode under overlap joint state in the prior art.
Fig. 9 A and Fig. 9 B respectively illustrate the sectional view of the overlapping regions of back side grid line and rear electrode in the prior art,
Middle Fig. 9 A and Fig. 9 B is respectively the excessive and how many situation of conducting resinl, wherein illustrating only relevant portion.
Fig. 9 C shows the sectional view of the overlapping regions of back side grid line and welding in the prior art, wherein illustrating only correlation
Part.
Each appended drawing reference respectively indicates in figure: 1, back side grid line；2, rear electrode；3, overlapping regions；4, loci；5, just
Face electrode；6, conducting resinl；7, welding；8, cell piece.
Specific embodiment
The technical solution of the utility model is further described in a manner of specific embodiment below in conjunction with attached drawing, but
The utility model is not limited to these examples.
Referring to figure 1, figure 2 and figure 3, for the cell piece of imbrication Double-sided battery pack it is generally square before cutting or
Approximating square has front and the back side opposite with front.As shown in Figure 1, being formed at the back side for not cutting cell piece
The a plurality of rear electrode 2 extended parallel to each other extends along the direction for one group of parallel edges for being parallel to cell piece.Fig. 2 shows
The back side grid line 1 that the utility model embodiment does not cut cell piece, direction and the rear electrode 2 of these back side grid lines 1 are gone out
Direction intersection, it is preferably vertical with the direction of rear electrode 2, for collecting electric current caused by cell piece and being conveyed by electrode
It is used to outside batteries.As shown in figure 3, being formed with a plurality of extend parallel to each other just in the front for not cutting cell piece
Face electrode extends also along the direction for the same set of parallel edges for being parallel to cell piece, closes with rear electrode 2 there are corresponding
System.Front electrode 5 and the main material of rear electrode 2 are generally silver.
It is above-mentioned not cut after cell piece cut, that is, form the multiple cell pieces 8 for being used for imbrication Double-sided battery pack.Each
Cell piece 8 has front electrode 5 in front, overleaf has rear electrode 2, and the front electrode 5 of same cell piece 8 and the back side
Electrode 2 is located at the opposite side of the cell piece 8.The two-sided electricity of imbrication is formed by bonding of conducting resinl 6 etc. after multiple cell pieces 8 are stacked
Pond component.
Fig. 5 shows the imbrication Double-sided battery pack of the utility model embodiment comprising multiple stacked double-side cells
Piece 8.As shown, in the present invention, imbrication Double-sided battery pack is stacked structure by multiple cell pieces 8 above and below its both ends
There is front and the back side opposite with the front at, cell piece 8, a plurality of front gate line be located at the front of cell piece 8 and that
This is extended parallel to, while a plurality of back side grid line 1 is located at the back side of cell piece 8 and is parallel to a plurality of front gate line extension.It is folded
The electric current that watt Double-sided battery pack is formed is exported by the lead-out wire for being located at component edge.Wherein, the battery by being located above
The rear electrode 2 of piece 8 is electrically connected with the formation of the front electrode 5 of underlying cell piece 8.According to the utility model, overleaf
Increase clinch 3 except 2 main body of electrode, for connecting with back side grid line 1.Make back side grid line 1 snap into 2 main body of rear electrode it
Outer clinch 3 can form difference in height to avoid in cell piece join domain, improve the company between cell piece 8 and cell piece 8
It connects, while ensure that the efficient weld area between rear electrode 2 and lead-out wire (welding), the Weldability of lifting assembly can
To design narrower electrode area, the lower lap trend of matching imbrication component.
Fig. 4 A and Fig. 4 B respectively illustrate the back side under the non-overlap joint state of the utility model embodiment and under overlap joint state
Grid line 1 and rear electrode 2.As shown, rear electrode 2 according to the present utility model includes main body and is connected to body side
Clinch 3 (shown in the section that may further reference Fig. 6 A and Fig. 6 B), clinch 3 with multiple back side grid lines 1 for being overlapped.It is preferred that
Ground, the clinch 3 can be the multiple portions for protruding from and extending except body side along side, be also possible to add in main body
Except along side extend those widened sections.Fig. 4 A and 4B, which are shown, protrudes from the multiple generally frustoconical of 2 main body of rear electrode
Clinch 3, for being overlapped with multiple back side grid lines 1.Certainly, the shape of clinch 3 is without being limited thereto, can be and protrudes from back
Semicircle, triangle, polygon or the other irregular shapes extended along side outside 2 main body of face electrode, as long as ensuring to take
Socket part 3 can be used in being overlapped with multiple back side grid lines 1.Those widened sections merely are set as overlap joint to rear electrode 2
The back side electricity of the cell piece 8 is avoided so that the overlapping regions of back side grid line 1 and rear electrode 2 is only positioned in the those widened sections in portion 3
The region of the front electrode 5 of pole 2 and another cell piece 8 engagement and the region engaged with lead-out wire (welding) with rear electrode 4
It is also feasible.It is preferred that the clinch 3 and 2 main body of rear electrode are integrated, such as integrally print.
Referring to Fig. 6 A, which is the amplification sectional view along C-C cutting of a-quadrant in Fig. 5 of the utility model embodiment,
In for clarity, illustrate only top 8 back side of cell piece and the positive electrode of underlying battery piece 8 and grid line and leading therebetween
Electric glue 6.Wherein, in order to distinguish clinch 3, clinch 3 is depicted as in figures 6 a and 6b it is different from 2 main body of rear electrode,
It is preferred that the clinch 3 and 2 main body of rear electrode are integrated, such as integrally print.Reality according to the present utility model
Example is applied, when the cell piece 8 of imbrication Double-sided battery pack overlaps two-by-two, by orientation in figure, the back side grid line 1 of top cell piece 8
The thickness of the clinch 3 of the left end of right end overlap joint rear electrode 2, rear electrode 2 shown in figure and its clinch 3 is less than the back side
The thickness of grid line 1.The specific structure of the left end clinch 3 of the right end overlap joint rear electrode 2 of back side grid line 1 are as follows: back side grid line 1
The upper half of right end is retracted to the left, and lower half encases the part clinch 3 positioned at the left end of rear electrode 2.Underlying battery piece 8
Upside is front electrode 5 and front gate line from left to right, and the right end of front electrode 5 is contacted with the left end of the front gate line.It leads
Electric glue 6 is coated between the main body of rear electrode 2 and the front electrode 5 of underlying battery piece 8 of top cell piece 8.More specifically,
As shown, in the upside and 8 junction of top cell piece of underlying battery piece 8, by orientation in figure, in the upper of underlying battery piece 8
Side left end is front electrode 5, coats conducting resinl 6 thereon, the main body downside of the upside of conducting resinl 6 and rear electrode 2 (and it is non-overlapping
Portion 3) contact, and the width of conducting resinl 6 is less than the width of 2 main body of rear electrode, conducting resinl 6 (containing main body and is taken with rear electrode 2
Socket part 3) the sum of thickness be substantially equal to top cell piece 8 back side grid line 1 thickness.Also, since clinch 3 protrudes from back
2 main body of face electrode, thus the left end of conducting resinl 6 is not in contact with the right end of the back side grid line 1 of top cell piece 8, but leading
There are one section of gaps between the right end lower half outstanding of the back side grid line 1 of the left end and top cell piece 8 of electric glue 6.Pass through this
Kind construction, so that conducting resinl 6 is only in contact with 2 main body of rear electrode, the height of appearance is converged so as to avoid aforementioned more planes
Poor problem, back side grid line 1 will not make somebody a mere figurehead adjacent cell piece 8, and conducting resinl 6 can not only effectively fill the gap between cell piece, and
And reduce the dosage of conducting resinl 6.
It is the amplification sectional view along C-C of B area in Fig. 5 of the utility model embodiment, wherein to be clear referring to Fig. 6 B
For the sake of, it illustrate only the electrode and grid line and lead-out wire (welding) at the cell piece back side.Wherein, in order to distinguish clinch 3,
Clinch 3 is depicted as it is different from 2 main body of rear electrode, it is preferred that the clinch 3 and 2 main body of rear electrode be it is integrated,
Such as it integrally prints.Embodiment according to the present utility model, by orientation in figure, the right side of the back side grid line 1 of cell piece 8 is taken
The clinch 3 being connected to except 2 main body of rear electrode, the thickness of rear electrode 2 are less than the thickness of back side grid line 1.Back side grid line 1
Right end snaps into the specific structure of the clinch 3 of the left end of rear electrode 2 are as follows: contracts to the left the upper half of the right end of back side grid line 1
Into lower half encases the part clinch 3 of the left end of rear electrode 2.It is overleaf lead-out wire, that is, welding on the downside of the main body of electrode 2
7, the main body contacts-side-down of the upside of the left end of welding 7 and rear electrode 2.The sum of welding 7 and the thickness of rear electrode 2 are substantially etc.
In the thickness of the back side grid line 1 of top cell piece 8.Also, since clinch 3 protrudes from 2 main body of rear electrode, thus welding 7
Left end be not in contact with the right end of the back side grid line 1 of top cell piece 8, but in the left end of welding 7 and top cell piece 8
There are one section of gaps between the right end of back side grid line 1 lower half outstanding.
The manufacturing method of the imbrication Double-sided battery pack according to the utility model embodiment is described below.It is practical new according to this
The embodiment of type makes the clinch 3 of rear electrode 2 and back side grid line 1 overleaf outside 2 main body of electrode, avoids adjacent during fabrication
Difference in height at 8 interconnecting piece of cell piece between each plane, in order to avoid influence the connection and battery between cell piece 8 and cell piece 8
Welding between piece 8 and lead-out wire.
Manufacturing method mainly comprises the steps that
Making herbs into wool step: surface wool manufacturing is carried out to obtain good suede structure, to increase silicon wafer to mono-/multi- crystal silicon chip
Surface area reduces the reflection of incident light to receive more photons (energy).
Optionally, residual liquid when can be with cleaning and texturing after making herbs into wool step, to reduce acid and alkaline matter pair
The influence of battery knot.
Diffusion step: being reacted for example, by phosphorus oxychloride and silicon wafer, obtains phosphorus atoms.After a period of time,
Phosphorus atoms enter the superficial layer of silicon wafer, and are spread by the gap between silicon atom to silicon wafer internal penetration, form N-type and partly lead
The interface of body and P-type semiconductor completes diffusion process, realizes the conversion of luminous energy to electric energy.It is appreciated that other types
Alternative step of cell piece knot technology.
Etch step: since diffusion forms short-channel, light collected by the front of PN junction in silicon chip edge
Raw electrons flow to the back side of PN junction along the region that edge-diffusion has phosphorus and cause short circuit, it is therefore desirable to for example, by plasma
Edge PN junction is etched and is removed by etching, and edge is avoided to cause short circuit.
Since diffusion process can make silicon chip surface form one layer of phosphorosilicate glass, it can optionally pass through dephosphorization silicon
Glass process reduces the influence to imbrication battery efficiency.
Plating steps: existed using atomic layer deposition (ALD) method or passivation emitter and back side battery (PERC) mode
The certain thickness aluminum oxide passivation layer of back side lamination.In order to reduce the surface reflection of silicon wafer, the transfer efficiency of battery is improved,
Need to deposit one or more layers silicon nitride anti-reflecting film on front side of silicon wafer surface, it can be for example, by plasma enhancing
It learns vapour deposition process (PECVD) process and completes antireflective coating preparation.In addition, in order to realize good passivation effect, it can be in electricity
The opposite backside surface deposition back passivating film of pond piece is to reduce the compound of carrier.
Print steps: in the step, according to back side grid line figure, laser slotting is carried out in corresponding position, back side design swashs
Light loci 4, using the loci 4 that one CCD camera captures laser positioning point 4 and printing screen plate together carry out precision contraposition with
Printed back electrode 2 prints out 2 main body of rear electrode in printing and is connected to taking for body side according to the utility model
Socket part 3, the loci 4 for capturing loci 4 and two printing screen plates after printing together using two CCD cameras later carry out essence
Degree contraposition is with printed back grid line.Preferably, printed clinch 3 can be to protrude from and prolong except main body along body side
The multiple portions stretched are also possible to add the those widened sections extended except main body along side.It can be printed referring to Fig. 4 A and 4B
The multiple generally frustoconical clinch 3 extended along side for protruding from 2 main body of rear electrode, are used for and multiple back side grid lines 1
It is overlapped.Certainly, the shape of printed clinch 3 is without being limited thereto, can be protrude from outside 2 main body of rear electrode along
Side extend semicircle, triangle, polygon or other irregular shapes, as long as ensure clinch 3 can be used in it is multiple
Back side grid line 1 is overlapped.
In print steps, also progress front electrode and front gate line prints, and front electrode and front gate line can use
Single printing technology, secondary printing technique or substep printing technology are completed.
Sintering curing step: being sintered solidification for the silicon wafer through silk-screen printing at high temperature, to realize effective ohm
Contact forms imbrication cell piece.
Testing procedure: the imbrication battery small pieces after cutting separation can enter on-line testing unit according to sequencing,
For example, may include electrical property (IV) test cell, electroluminescent (EL) test cell, apparent visual (VI) test cell etc.,
The testing, sorting for completing single battery small pieces, to test the performance of imbrication piece.
In the manufacturing method, the rear electrode 2 and underlying battery of top cell piece in bonding two adjacent cell pieces 8
When the front electrode 5 of piece 8, conducting resinl 6 is coated in the main body of rear electrode 2, the clinch 3 without being coated in rear electrode 2,
Also, back side grid line 1 is only overlapped with the clinch 3 of rear electrode 2, without the body contact with rear electrode 2.
In the manufacturing method, wherein the extraction for drawing electric current is arranged in the edge of imbrication Double-sided battery pack
When line, lead-out wire is only connect with the main body of rear electrode 2.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but not deviate from the spirit of the utility model or beyond the scope of the appended claims.
Claims (7)
1. a kind of imbrication Double-sided battery pack, is constituted by multiple cell pieces (8) are stacked, each cell piece (8) have front with
The opposite back side with the front, front have front electrode (5), and the back side has the back for being parallel to front electrode and being located at opposite side
Face electrode (2), the back side further include a plurality of back side grid line (1) for extending parallel to each other and intersecting with rear electrode (2), when being stacked
The rear electrode (2) of top cell piece (8) is connect with the front electrode (5) of underlying battery piece (8) in two adjacent cell pieces (8),
It is characterized by:
Rear electrode (2) include main body and be connected to body side for a plurality of back side grid line (1) carry out overlapped overlap joint
Portion (3), rear electrode (2) and underlying battery piece (8) for bonding the middle top cell piece (8) of two adjacent cell pieces (8) are just
The conducting resinl (6) of face electrode (5) is coated in the main body of rear electrode (2).
2. imbrication Double-sided battery pack as described in claim 1, which is characterized in that in the edge of imbrication Double-sided battery pack
Equipped with the lead-out wire for drawing electric current, the lead-out wire is only connect with the main body of rear electrode (2).
3. imbrication Double-sided battery pack as claimed in claim 1 or 2, which is characterized in that the clinch (3) is to protrude from master
The multiple portions extended except the portion of side along side.
4. imbrication Double-sided battery pack as claimed in claim 3, which is characterized in that the multiple part is to protrude from main body
Outside, truncated cone shape, semicircle, triangle or the polygon segments extended along side.
5. imbrication Double-sided battery pack as claimed in claim 1 or 2, which is characterized in that the clinch (3) is added in master
The those widened sections extended except body along side.
6. imbrication Double-sided battery pack as claimed in claim 1 or 2, which is characterized in that the thickness of rear electrode (2) is less than back
The thickness of face grid line (1).
7. imbrication Double-sided battery pack as claimed in claim 3, which is characterized in that the clinch (3) of the rear electrode (2)
It is integrally to print with main body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277194.8U CN209675314U (en) | 2019-03-05 | 2019-03-05 | Imbrication Double-sided battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277194.8U CN209675314U (en) | 2019-03-05 | 2019-03-05 | Imbrication Double-sided battery pack |
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| Publication Number | Publication Date |
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| CN209675314U true CN209675314U (en) | 2019-11-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802002A (en) * | 2019-03-05 | 2019-05-24 | 成都晔凡科技有限公司 | Imbrication Double-sided battery pack and its manufacturing method |
-
2019
- 2019-03-05 CN CN201920277194.8U patent/CN209675314U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802002A (en) * | 2019-03-05 | 2019-05-24 | 成都晔凡科技有限公司 | Imbrication Double-sided battery pack and its manufacturing method |
| CN109802002B (en) * | 2019-03-05 | 2024-04-12 | 通威太阳能（合肥）有限公司 | Stacked double-sided battery assembly and manufacturing method thereof |
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| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TONGWEI SOLAR ENERGY (HEFEI) Co.,Ltd. Assignor: CHENGDU YEFAN SCIENCE AND TECHNOLOGY Co.,Ltd. Contract record no.: X2023990000264 Denomination of utility model: Tiled double-sided battery assembly Granted publication date: 20191122 License type: Common License Record date: 20230221 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231207 Address after: 230000 No.888 Changning Avenue, hi tech Zone, Hefei City, Anhui Province Patentee after: TONGWEI SOLAR ENERGY (HEFEI) Co.,Ltd. Address before: No. 505, building 6, Zone D, Tianfu Software Park, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan 610041 Patentee before: CHENGDU YEFAN SCIENCE AND TECHNOLOGY Co.,Ltd. |