CN209266424U - A kind of cell piece mould group and the component comprising it - Google Patents

Abstract

The utility model provides a kind of cell piece mould group and the component comprising it, is related to technical field of solar batteries.Including multiple cell pieces and multiple interconnecting strips, the shady face of the cell piece is provided with multi-group electrode, and each group electrode includes first electrode column and second electrode column；One end of each interconnecting strip connects the first electrode column of a cell piece, and the other end connects the second electrode column of another adjacent cell piece, and the adjacent cell piece is connected in series with the interconnecting strip.Multi-group electrode is set in the shady face of the cell piece, and the interconnecting strip that the cell piece can be connected in series is set, in order to which the electric current realized between cell piece by interconnecting strip transmits.One end of the interconnecting strip provided by the present application is used to connect the first electrode column or second electrode column positioned at the cell piece back side, therefore the interconnecting strip can't cause to block to the light-receiving surface of cell piece, so that the light-receiving area of the light-receiving surface of cell piece improves.

Description

A kind of cell piece mould group and the component comprising it

Technical field

The utility model relates to technical field of solar batteries, in particular to a kind of cell piece mould group and include it Component.

Background technique

In the crystal silicon class component for currently occupying mainstream market, the cost of silicon wafer accounts for 30% or so of all costs of material, Belong to the highest material of cost, the cell piece and cell piece component prepared in the prior art by silicon wafer, due to needing using existing Interconnecting strip welding connection cell piece front and back main grid mode, therefore have the following technical problems: when needing to promote cell piece Power generation region, it is necessary to limit the front main grid quantity of cell piece, with reduce light-receiving surface is blocked；As shown in Figure 1, interconnection Welding one end can block light-receiving surface, waste cell piece part power generation region for connecting front main grid.

Utility model content

To solve main grid limited amount in hexagon battery component application process in the prior art, waste cell piece power generation area The technical issues of domain, the main purpose of the utility model are to provide a kind of raising cell piece light-receiving area and cell piece power generation A kind of cell piece mould group in region and the component comprising it.

In a first aspect, the utility model embodiment provides a kind of cell piece mould group, including multiple cell pieces and it is multiple mutually Bracing, the shady face of the cell piece are provided with multi-group electrode, and each group electrode includes first electrode column and second electrode column；Respectively One end of the interconnecting strip connects the first electrode column of a cell piece, and the other end connects another adjacent battery The adjacent cell piece is connected in series with the interconnecting strip for the second electrode column of piece.

Further, in the utility model preferred embodiment, the first electrode column is connected to the cell piece Light-receiving surface, and the first electrode column runs through the cell piece and protrudes from the shady face of the cell piece；The second electrode Column is connected to the shady face of the cell piece.

Further, in the utility model preferred embodiment, be provided on the cell piece by the cell piece by For smooth surface to the perforative first through hole of cell piece shady face, the first electrode column is fixed on the first through hole, and described First electrode insulating film is provided between first electrode column and the inner wall of the first through hole.

Further, in the utility model preferred embodiment, connect the interconnecting strip of the first electrode column with It connects and is provided with the second isolation film between the interconnecting strip of the second electrode column.

Further, in the utility model preferred embodiment, the shady face of the cell piece be additionally provided with first every From film, one end that the interconnecting strip is used to connect the first electrode column is located at first isolation film and second isolation film Between.

Further, in the utility model preferred embodiment, being provided on first isolation film allows described the The first fenestra that one electrode column passes through and the second fenestra for allowing the second electrode column to pass through.

Further, in the utility model preferred embodiment, being provided on second isolation film allows described the The third fenestra that two electrode columns pass through.

Further, in the utility model preferred embodiment, the cell piece is hexagon cell piece, described in multiple groups Electrode annular array on the cell piece.

Further, in the utility model preferred embodiment, the interconnecting strip includes the first branch of split settings And second branch, one end of one end of first branch and second branch, which is adapted to, to be connected on the cell piece The first electrode column or the second electrode column.

Further, in the utility model preferred embodiment, the interconnecting strip is used to connect with the first electrode column The one end connect is provided with the second through-hole, and the second electrode column can be passed through by second through-hole, and the second electrode column Second electrode insulating film is provided between the inner wall of second through-hole.

It further, further include busbar in the utility model preferred embodiment, multiple cell pieces are flat with it Capable adjacent edge successively arranges and forms battery strings, and the every two adjacent cell piece passes through the interconnecting strip in the battery strings Concatenation；It is parallel and be staggered between two adjacent battery strings；The two neighboring battery strings pass through the busbar Connection.

Second aspect, the utility model embodiment provide a kind of cell piece component, including sequentially connected front glass, preceding Glue film, cell piece mould group, back-adhesive film, backboard and terminal box, the cell piece mould group are cell piece mould described in any of the above embodiments Group.

A kind of cell piece mould group provided by the utility model and the component comprising it are arranged in the shady face of the cell piece Multi-group electrode, and the interconnecting strip that the cell piece can be connected in series is set, in order to realize cell piece by interconnecting strip Between electric current transmission.It is located at described the of the cell piece back side since one end of the interconnecting strip provided by the present application is used to connect One electrode column or second electrode column, therefore the interconnecting strip can't cause to block to the light-receiving surface of cell piece, so that electric The light-receiving area of the light-receiving surface of pond piece improves, and can make full use of the power generation region of cell piece, improves the power generation of cell piece component Efficiency.

Detailed description of the invention

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is prior art cell piece attachment structure schematic diagram；

Fig. 2 is the schematic diagram for the cell piece mould group that an embodiment of the present invention provides；

Fig. 3 is the structural schematic diagram for the cell piece that an embodiment of the present invention provides；

Fig. 4 is the structural schematic diagram for the interconnecting strip that an embodiment of the present invention provides；

Fig. 5 is the cell piece connection schematic diagram that an embodiment of the present invention provides；

Fig. 6 is the cell piece connection structure cross-sectional view that an embodiment of the present invention provides；

Fig. 7 is the assembly encapsulation structure schematic diagram that an embodiment of the present invention provides；

Fig. 8 is the first isolation membrane structure diagram that an embodiment of the present invention provides；

Fig. 9 is the second isolation membrane structure diagram that an embodiment of the present invention provides；

Figure 10 is the first electrode insulating film schematic diagram that an embodiment of the present invention provides；

Figure 11 is the second electrode insulating film schematic diagram that an embodiment of the present invention provides.

Appended drawing reference:

1- cell piece mould group

11 ' -12 '-front main grid of cell piece, 13 '-back side main grid 14 '-interconnecting strip weldings

The non-back electrode film region 11- cell piece 12- first electrode column 121-

13- second electrode column 14- interconnecting strip 141- first connecting portion the second through-hole of 1411-

The first branch of 142- second connecting portion 143- third interconnecting piece 144-

145- the second branch 15- first electrode insulating film 16- second electrode insulating film

17- the first isolation film 171- the first fenestra the second fenestra of 172-

18- the second isolation film 181- third fenestra 19- conducting resinl 20- busbar

Glue film 4- back-adhesive film 5- backboard 6- terminal box before 2- front glass 3-

Specific embodiment

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the application embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is cell piece attachment structure schematic diagram in the prior art；Adjacent nearly quadrangle cell piece 11 ' in the prior art The back side main grid 13 ' of front main grid 12 ' and another battery is connected by conventional bar shaped interconnecting strip, interconnecting strip welding 14 ' needs Front main grid and back side main grid are connected, light-receiving surface can be caused to block.

Fig. 2 is the structural schematic diagram according to the cell piece mould group shown in an embodiment of the present invention；Fig. 3 is according to this reality The structural schematic diagram for implementing the cell piece exemplified with novel one；Fig. 4 is according to the interconnection shown in an embodiment of the present invention The structural schematic diagram of item；Fig. 5 is according to the cell piece connection schematic diagram shown in an embodiment of the present invention；Fig. 6 is according to this Utility model one implements the cell piece connection structure cross-sectional view exemplified.As shown in Figures 2 to 6, the utility model embodiment mentions A kind of cell piece mould group 1 supplied, including multiple cell pieces and multiple interconnecting strips 14, the shady face of the cell piece are provided with multiple groups Electrode, each group electrode include first electrode column 12 and second electrode column 13；One end of each interconnecting strip 14 connects an institute The first electrode column 12 of cell piece is stated, the other end connects the second electrode column 13 of another adjacent cell piece, with The adjacent cell piece is connected in series the interconnecting strip 14.Cell piece is the component for converting light energy into electric energy, in institute The shady face setting multi-group electrode of cell piece is stated, and the interconnecting strip 14 that the cell piece can be connected in series is set, so as to It is transmitted in by the electric current between the realization cell piece of interconnecting strip 14.Since one end of the interconnecting strip 14 provided by the present application is used for Connection is located at the first electrode column 12 or second electrode column 13 at the cell piece back side, therefore the interconnecting strip 14 can't be to electricity The light-receiving surface of pond piece causes to block, so that the light-receiving area of the light-receiving surface of cell piece improves, can make full use of cell piece Power generation region, improve cell piece component generating efficiency.

Specifically in the present embodiment, the first electrode column 12 is connected to the light-receiving surface of the cell piece, and described the One electrode column 12 runs through the cell piece and protrudes from the shady face of the cell piece；The second electrode column 13 is connected to described The shady face of cell piece.Light-receiving surface can be utmostly utilized, the power generation region of cell piece is efficiently used.As shown in fig. 6, this is practical In the cell piece mould group 1 that a novel embodiment provides, conduction is provided between the interconnecting strip 14 and the electrode of the cell piece Glue 19 is heating and curing convenient for interconnecting strip 14 and first electrode column 12 or second electrode column 13.

The cell piece mould group 1 provided in the utility model embodiment, be provided on the cell piece by the cell piece by For smooth surface to the perforative first through hole of cell piece shady face, the first electrode column 12 is fixed on the first through hole, and institute It states and is provided with first electrode insulating film 15 between first electrode column 12 and the inner wall of the first through hole, it is as shown in Figure 10, described First electrode insulating film 15 is for preventing the first electrode column 12 and the second electrode column 13 adjacent thereto from electrically conducting. It forms back-contact electrode on cell piece, and is attached by interconnecting strip 14, interconnecting strip 14 is deformable metal strip, can be with Play the role of main grid in prior art cell piece, and avoids main grid waste cell piece part power generation region simultaneously, increases component Internal resistance and consumption, the idle work region for increasing non-battery piece in component.

In the prior art, the cost of silicon wafer accounts for 30% or so of all costs of material, belongs to the highest material of cost, and mesh When preceding silicon rod (cylindric) is cut into mainstream silicon wafer (approximating square), more waste material can be generated.To reduce silicon wafer cost, change The shape of silicon wafer, by silicon wafer is changed to hexagon by subquadrate, effectively promotes single silicon chip usable area, and it is former to save silicon wafer Material reduces waste material, the cell piece mould group 1 that an embodiment of the present invention provides, and the cell piece is hexagon cell piece, such as schemes Shown in 3, first electrode column 12 and second electrode column 13 intersect and are uniformly distributed, electricity described in preferred multiple groups in cell piece shady face Pole annular array on the cell piece.The cell piece that hexagon is arranged is compared compared with the cell piece of subquadrate, can be by single piece of silicon Piece area promotes 19% or so, reduces the generation of waste material, efficiently utilizes silicon raw material.

Due to the hexagon cell piece of setting its usable floor area it is more rectangular to increase it is very much, in order to make full use of hexagon The power generation region of cell piece, cell piece mould group 1 provided in this embodiment, the electrode being arranged on hexagon cell piece is along circular row Column, as shown in figure 3, being convenient for the power generation region of large-area applications cell piece；It is corresponding, it is described in order to effectively connect each electrode Two connecting pins of interconnecting strip 14 are set as arc, guarantee photovoltaic module power generation performance.

As shown in figure 2, figure 5 and figure 6, in the cell piece mould group 1 that an embodiment of the present invention provides, the interconnecting strip 14 The first branch 144 and the second branch 145 including split settings, one end of first branch 144 and second branch 145 One end be adapted to the first electrode column 12 or the second electrode column 13 being connected on the cell piece, it is described mutually First branch 144 of bracing 14 is identical with 145 structure setting of the second branch, symmetrical to use, 144 He of the first branch in use process Second branch 145 forms the circular ring shape of two notches of band on the same cell piece.With the first branch 144 of the interconnecting strip 14 Or second for branch 145, includes arc-shaped first connecting portion 141, second connecting portion 142 and intermediate straight panel shape knot The third interconnecting piece 143 of structure, i.e. " semi-annular shape+straight panel shape+semi-annular shape " form, circular both ends are convenient for connection cell piece On electrode column；Wherein, first connecting portion 141 is to connect one end of first electrode column 12, and second connecting portion 142 is to connect One end of second electrode column 13.Convenient for assembly in other embodiments, the mutual of an integral structure also can be set in separate structure Bracing 14 can take " non-closed annular shape+straight panel shape+non-closed loop effectively to connect with the electrode on hexagon cell piece Formula is circular " form.The interconnecting strip 14 of split settings can select quantity according to actual needs, and the interconnecting strip 14 being wholely set is selected With one.

In the present embodiment, first connecting portion 141, the second connecting portion 142 of any interconnecting strip 14 should cover same simultaneously The first electrode column 12 of cell piece and second electrode column 13 adjacent thereto, interconnecting strip 14 with a thickness of 0mm-10mm, it is preferably thick Degree is 0.1mm.The length of third interconnecting piece 143 be 0mm-400mm, width 0mm-250mm, with a thickness of 0mm-10mm, preferably Length is 50mm, width 35mm, with a thickness of 0.1mm.

Since the same interconnecting strip 14 needs the first electrode column 12 of one cell piece of connection simultaneously and adjacent cell piece Second electrode column 13, in the cell piece mould group 1 that an embodiment of the present invention provides, the interconnecting strip 14 is used for and described the One end (i.e. first connecting portion 141) of one electrode column 12 connection is provided with the second through-hole 1411, and the second electrode column 13 can It being passed through by second through-hole 1411, the quantity of the second through-hole 1411 is set according to 13 quantity of second electrode column, as shown in fig. 6, In the present embodiment, the height of second electrode column 13 (back electrode column) is greater than first electrode column 12 (preceding electrode column), therefore, in order to ensure that Interconnecting strip 14 is connect with first electrode column 12, and the second through-hole 1411 of setting passes through second electrode column 13.In addition, in the present embodiment, As shown in Fig. 6, Figure 11, second electrode insulation is provided between the second electrode column 13 and the inner wall of second through-hole 1411 Film 16, the second electrode insulating film 16 is for preventing from electrically conducting between the second electrode column 13 and interconnecting strip 14.Second The planar dimension of through-hole 1411 and the maximum planes size disparity 0mm-10mm, preferably gap 1mm of second electrode insulating film 16.

There is heating can melt for above-mentioned first electrode insulating film 15, second electrode insulating film 16, mobility is strong, insulating properties Feature good, flame retardant rating is high, can be glue, or glue film, or be the exhausted of " glue+insulant+glue " structure Edge film；Preferably glue film.First electrode insulating film 15, second electrode insulating film 16 shape can be circular, " returning " word Shape or other shapes can be determined according to the shape of electrode column.

As shown in Fig. 2, further include busbar 20 in the utility model preferred embodiment, multiple cell pieces with Its parallel adjacent edge, which is successively arranged, forms battery strings, and the every two adjacent cell piece passes through described mutual in the battery strings Bracing 14 concatenates；It is parallel and be staggered between two adjacent battery strings；The two neighboring battery strings pass through described Busbar 20 connects, and busbar 20 further connects external cabling box 6, thus by charge transport.Busbar 20 can be to battery The internal current of piece component transmits and electric current is output to component external.

Fig. 8 is according to 17 structural schematic diagram of the first isolation film shown in an embodiment of the present invention；Fig. 9 is according to this reality Implement 18 structural schematic diagram of the second isolation film exemplified with novel one；Wherein,

As shown in Fig. 6, Fig. 9, for prevent on same cell piece connect first electrode column 12 interconnecting strip 14 with connect second The interconnecting strip 14 of electrode column 13 electrically conducts, and the cell piece mould group 1 that an embodiment of the present invention provides connects described the Be provided between the interconnecting strip 14 of one electrode column 12 and the interconnecting strip 14 of the connection second electrode column 13 second every From film 18, second isolation film 18 is for preventing first interconnecting strip 14 and its adjacent interconnecting strip 14 from electrically conducting.

As shown in Fig. 6, Fig. 8, in the present embodiment, the shady face of the cell piece is additionally provided with the first isolation film 17, described One end that interconnecting strip 14 is used to connect the first electrode column 12 is located at first isolation film 17 and second isolation film 18 Between, the second isolation film 18 can further prevent electrically conducting between first electrode column 12 and second electrode column 13, while It can guarantee that interconnecting strip 14 is electrically conducted by first electrode column 12 and the shady face of cell piece.

The planar dimension of first isolation film 17 meets: identical as the planar dimension of cell piece；Or it is less than normal in the flat of cell piece Face size, but to meet the overlapping region size greater than 14 first connecting portion 141 and hexagon cell piece shady face of interconnecting strip；Or Planar dimension less than normal in cell piece, but to meet the size of the annular greater than 14 first connecting portion 141 of interconnecting strip.

The planar dimension of second isolation film 18 meets: identical as the planar dimension of cell piece；Or it is less than normal in the flat of cell piece Face size, but to meet Chong Die with adjacent 14 second connecting portion 142 of another interconnecting strip greater than 14 first connecting portion 141 of interconnecting strip Area size.

The thickness of first isolation film 17 or the second isolation film 18 is in 0mm-10mm, preferred thickness 1mm.

As shown in Fig. 6, Fig. 8, in the present embodiment, being provided on first isolation film 17 allows the first electrode column 12 The first fenestra 171 passed through and the second fenestra 172 for allowing the second electrode column 13 to pass through.As shown in Fig. 6, Fig. 9, this reality It applies in example, the third fenestra 181 for allowing the second electrode column 13 to pass through is provided on second isolation film 18.Above-mentioned fenestra Quantity according to the quantity of electrode column to be connected determine.Wherein, the planar dimension of the first fenestra 171 (or second fenestra 172) The planar dimension gap 0mm-10mm of (being diameter in the present embodiment) with first electrode column 12 (or second electrode column 13), preferably Gap 2mm；The planar dimension of third fenestra 181 and the planar dimension gap 0mm-10mm of second electrode column 13, preferred gap 2mm。

There is heating can melt for above-mentioned first isolation film 17, the second isolation film 18, mobility is strong, good insulating, fire-retardant etc. The high feature of grade, can be glue, or glue film, or be the insulation film of " glue+insulant+glue " structure, it is excellent Choosing, the insulation film of " glue+insulant+glue " structure.

Fig. 7 is according to the assembly encapsulation structure schematic diagram shown in an embodiment of the present invention, as shown in fig. 7, this is practical A kind of cell piece component that novel another embodiment provides, including sequentially connected front glass 2, preceding glue film 3, cell piece mould group 1, Back-adhesive film 4, backboard 5 and terminal box 6, the cell piece mould group 1 are cell piece mould group 1 described in any of the above embodiments.Front glass 2 is adopted With the pattern glass for being coated with antireflective film, destruction of the cell piece mould group 1 by moisture attacks or other natural calamities is prevented, setting exists The cell piece light-receiving surface side of component.Bonding cell piece mould group 1 and front glass 2, back-adhesive film 4 are glued after melting after preceding glue film 3 melts Cell piece mould group 1 and backboard 5 are connect, backboard 5 uses low permeability rate backboard 5.Cell piece mould group 1 be component internal generate power generation and it is interior The electricity that cell piece mould group 1 generates then is drawn out in electricity needs system equipment by the important component of portion's conveying, terminal box 6. Cell piece component provided in this embodiment makes full use of silicon raw material, and due to electricity due to the above-mentioned cell piece mould group 1 taken The light-receiving area of pond piece improves, and the available power generation region of cell piece component is more abundant, and the generating efficiency of component is higher.

The packaging method of cell piece component is additionally provided in an embodiment of the present invention, is included the following steps:

S1 simply connected: it is exhausted that S11 places first electrode in the non-back electrode film region 121 on cell piece at first electrode column 12 Velum 15；S12 is laid with the first isolation film 17 in the shady face of cell piece；S13 applies conducting resinl 19, simultaneously in 12 region of first electrode column Interconnecting strip 14 is placed, being heating and curing is fixedly connected with interconnecting strip 14 with first electrode column 12.

S2 series connection: on the basis of the cell piece that step S1 simply connected is completed, second electrode column 13 is pierced by S21 in interconnecting strip 14 Place is laid with second electrode insulating film 16, and the second isolation film 18 is laid in interconnecting strip 14；S22 is applied in 13 region of second electrode column Conducting resinl 19 simultaneously places another interconnecting strip 14, and being heating and curing keeps this interconnecting strip 14 and second electrode column 13 fixed.

Cell piece is connected into battery strings according to step S1, step S2 by S3.

S4 typesetting: S41 is laid with preceding glue film 3 on front glass 2, is then sequentially placed battery strings according to default typesetting scheme； S42 busbar 20 is sequentially connected the interconnecting strip 14 of battery strings two ends, until all battery strings are connected, carries out forming cell piece Mould group 1；S43 lays back-adhesive film 4, backboard 5, and 20 exit side of busbar is then passed through back-adhesive film 4, backboard 5 and is paved.

S5 lamination: by typesetted component to be laminated, first passing through EL equipment (electroluminescent test equipment) screening, qualified Component directly carries out laminating process.

S6 frames up: lamination being finished and the semi-finished product module for the processing that cools down, in its surrounding rim frame curing process.

Terminal box 6 is placed at the exit of busbar 20 by S7 attaching wire box 6:S71, and busbar 20 is made to pass through terminal box 6； Terminal box 6 is fixed on the outside of semi-finished product module backboard 5 by bonded adhesives by S72, trims extra busbar 20, and by busbar 20 It is connected with 6 terminal of terminal box；Wherein, when filling if necessary to encapsulating, then encapsulating curing process is carried out.

S8 test: by said modules by the test of component simulator, EL equipment postsearch screening, qualified then packing processes.

Wherein, conducting resinl 19 has cementability and electric conductivity.

Cell piece mould group 1 provided by the embodiment of the utility model and cell piece component have following technical advantage: reducing silicon Piece cost；Cell piece front generated output that is unobstructed and increasing by 1/ component of cell piece mould group；Under identical size of components, Advantageously, highly-safe, market competitiveness is strong for the application component cost.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (12)

1. a kind of cell piece mould group, which is characterized in that including multiple cell pieces and multiple interconnecting strips, the shady face of the cell piece It is provided with multi-group electrode, each group electrode includes first electrode column and second electrode column；One end connection one of each interconnecting strip The first electrode column of a cell piece, the other end connect the second electrode column of another adjacent cell piece, with The adjacent cell piece is connected in series the interconnecting strip.

2. cell piece mould group according to claim 1, which is characterized in that the first electrode column is connected to the cell piece Light-receiving surface, and the first electrode column through the cell piece and protrudes from the shady face of the cell piece；Second electricity Pole is connected to the shady face of the cell piece.

3. cell piece mould group according to claim 2, which is characterized in that be provided on the cell piece by the cell piece For light-receiving surface to the perforative first through hole of cell piece shady face, the first electrode column is fixed on the first through hole, and institute It states and is provided with first electrode insulating film between first electrode column and the inner wall of the first through hole.

4. cell piece mould group according to claim 1, which is characterized in that connect the interconnecting strip of the first electrode column The second isolation film is provided between the interconnecting strip for connecting the second electrode column.

5. cell piece mould group according to claim 4, which is characterized in that the shady face of the cell piece is additionally provided with first Isolation film, one end that the interconnecting strip is used to connect the first electrode column are located at first isolation film and are isolated with described second Between film.

6. cell piece mould group according to claim 5, which is characterized in that be provided with described in permission on first isolation film The first fenestra that first electrode column passes through and the second fenestra for allowing the second electrode column to pass through.

7. cell piece mould group according to claim 4, which is characterized in that be provided with described in permission on second isolation film The third fenestra that second electrode column passes through.

8. cell piece mould group according to claim 1, which is characterized in that the cell piece is hexagon cell piece, multiple groups Electrode annular array on the cell piece.

9. cell piece mould group according to claim 1, which is characterized in that the interconnecting strip includes first point of split settings One end of portion and the second branch, one end of first branch and second branch, which is adapted to, is connected to the cell piece On the first electrode column or the second electrode column.

10. cell piece mould group according to claim 1, which is characterized in that the interconnecting strip is used for and the first electrode One end of column connection is provided with the second through-hole, and the second electrode column can be passed through by second through-hole, and second electricity Second electrode insulating film is provided between pole and the inner wall of second through-hole.

11. cell piece mould group according to claim 1, which is characterized in that further include busbar, multiple cell pieces with Its parallel adjacent edge, which is successively arranged, forms battery strings, and the every two adjacent cell piece passes through described mutual in the battery strings Bracing concatenation；It is parallel and be staggered between two adjacent battery strings；The two neighboring battery strings pass through the remittance Flow item connection.

12. a kind of cell piece component, which is characterized in that including sequentially connected front glass, preceding glue film, cell piece mould group, gum Film, backboard and terminal box, the cell piece mould group are the described in any item cell piece mould groups of claim 1-11.