CN210576210U - Electrode composite unit of even number layer - Google Patents

Electrode composite unit of even number layer Download PDF

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Publication number
CN210576210U
CN210576210U CN201921269326.9U CN201921269326U CN210576210U CN 210576210 U CN210576210 U CN 210576210U CN 201921269326 U CN201921269326 U CN 201921269326U CN 210576210 U CN210576210 U CN 210576210U
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electrode
layer
units
unit
equal
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段镭
许金龙
谭华明
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Dongguan Chaohong Automation Equipment Co ltd
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Dongguan Chaohong Automation Equipment Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model discloses an electrode composite unit on even layer includes a plurality of layers of electrode slice, all there is the diaphragm layer between the adjacent two-layer electrode slice, and the number of piles on diaphragm layer is the odd number, polarity between the adjacent two-layer electrode slice is opposite, the polarity that is located the top layer electrode slice on electrode composite unit top layer is opposite with the polarity that is located the bottom electrode slice of electrode composite unit bottom, and the top layer electrode slice includes a plurality of top layer electrode units of arranging the in line, the bottom electrode slice includes a plurality of bottom electrode units of arranging the in line, it has the blank region that is greater than or equal to an electrode unit length to reserve between two adjacent top layer electrode units, reserve the blank region that has more than or equal to an electrode unit length between two adjacent bottom electrode units. Therefore the utility model discloses an above electrode composite unit on even number layer has not only simplified the range upon range of technology of electric core but also has improved the range upon range of efficiency of electric core.

Description

Electrode composite unit of even number layer
Technical Field
The utility model relates to an electrode compound unit for turning over into electric core especially relates to an electrode compound unit on even layer.
Background
With the rapid development of society, lithium batteries are applied to a plurality of digital products such as electric bicycles, notebook computers and the like because of the disadvantages of light weight, high energy storage density, long service life, low self-discharge and environmental protection.
As is well known, the conventional lithium battery cell is mainly formed by stacking a negative plate and a positive plate at intervals, a diaphragm is arranged between the negative plate and the positive plate, and the topmost electrode plate and the bottommost electrode plate of the battery cell are both negative plates.
The existing method for manufacturing the lithium battery cell mainly comprises the steps of firstly paving a diaphragm on a platform, then placing a negative plate on the diaphragm, then placing a diaphragm on the negative plate, then placing a positive plate … … on the diaphragm, and repeatedly placing the diaphragm, the negative plate or the positive plate for a plurality of times to manufacture a complete cell, but the existing method for manufacturing the lithium battery cell has the following defects: (1) before stacking the diaphragm, the negative plate and the positive plate, the diaphragm, the negative plate and the positive plate are cut respectively, so that the step of producing the lithium battery cell is complicated; (2) in the process of producing the lithium battery core, the diaphragm, the negative pole piece and the positive pole piece need to be stacked in a certain order, so that the production efficiency is low.
Therefore, an even number of layers of electrode composite units that simplify the manufacturing process and improve the manufacturing efficiency are needed to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrode composite unit on simplification production technology and improvement production efficiency's even layer
In order to achieve the above object, the present invention provides an electrode assembly unit with even number layers, the electrode assembly unit includes a plurality of electrode sheets, a membrane layer is disposed between two adjacent electrode sheets, the number of the membrane layer is odd, the polarity between two adjacent electrode sheets is opposite, the polarity of the top electrode sheet at the top layer of the electrode assembly unit is opposite to the polarity of the bottom electrode sheet at the bottom layer of the electrode assembly unit, the top electrode sheet includes a plurality of top electrode units arranged in a line, the bottom electrode sheet includes a plurality of bottom electrode units arranged in a line, a blank region larger than or equal to one electrode unit length is reserved between two adjacent top electrode units, a blank region larger than or equal to one electrode unit length is reserved between two adjacent bottom electrode units, and blank areas which are larger than or equal to the length of one electrode unit are reserved on at least the top layer and the bottom layer of the head end and/or the tail end of the electrode combination unit.
Preferably, the electrode combination unit sequentially comprises the top electrode plate, the first diaphragm layer, the first electrode plate, the second diaphragm layer, the second electrode plate, the third diaphragm layer and the bottom electrode plate from top to bottom.
Preferably, the first electrode sheet comprises a plurality of first electrode units spaced apart from each other and arranged in a row, the second electrode sheet comprises a plurality of second electrode units spaced apart from each other and arranged in a row, the first electrode units and the second electrode units are aligned in the vertical direction, the top electrode units are aligned with the first electrode units, and the bottom electrode units are aligned with the second electrode units.
Preferably, the first and second electrode sheets are each a continuous strip-shaped electrode sheet.
Preferably, the top electrode units and the bottom electrode units are staggered in the vertical direction, the number of the bottom electrode units is one more than that of the top electrode units, the polarities of the top electrode units are all positive, and the polarities of the bottom electrode units are all negative.
Preferably, the top layer electrode units and the bottom layer electrode units are staggered in the vertical direction, the number of the bottom layer electrode units is equal to that of the top layer electrode units, the polarity of the top layer electrode units is positive, and the polarity of the bottom layer electrode units is negative.
Preferably, the number of the bottom electrode units is one more than that of the top electrode units, each top electrode unit is aligned with one bottom electrode unit in the vertical direction, the polarity of the top electrode unit is positive, and the polarity of the bottom electrode unit is negative.
Preferably, the number of the top layer electrode units is equal to the number of the bottom layer electrode units, the top layer electrode units and the bottom layer electrode units are aligned in the vertical direction, the polarity of the top layer electrode units is positive, and the polarity of the bottom layer electrode units is negative.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on a top electrode plate at the head end of the electrode combination unit, and blank areas which are greater than or equal to one electrode unit length are reserved on the top electrode plate, a first electrode plate, a second electrode plate and a bottom electrode plate at the tail end of the electrode combination unit.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate at the tail end of the electrode combination unit.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and a blank area which is greater than or equal to one electrode unit length is reserved on the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate at the head end of the electrode combination unit, and blank areas which are greater than or equal to one electrode unit length are reserved on the top electrode plate, the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate at the tail end of the electrode combination unit.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate and the bottom layer electrode plate at the head end of the electrode combination unit, a tail section is reserved at the tail end of the electrode combination unit, a blank area which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate and the bottom layer electrode plate at one end of the tail section, and a blank area which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate, the second layer electrode plate and the bottom layer electrode plate at the other end of the tail section.
Preferably, a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and a blank area which is greater than or equal to one electrode unit length is reserved on the top electrode plate, the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
Compared with the prior art, because the electrode composite unit of the even number layer of the utility model comprises a plurality of electrode plates, a diaphragm layer is arranged between two adjacent electrode plates, the number of the membrane layers is odd, the polarities of the adjacent two electrode plates are opposite, the polarity of the top electrode plate positioned at the top layer of the electrode combination unit is opposite to the polarity of the bottom electrode plate positioned at the bottom layer of the electrode combination unit, the top electrode sheet comprises a plurality of top electrode units arranged in a row, the bottom electrode sheet comprises a plurality of bottom electrode units arranged in a row, a blank area with the length being more than or equal to one electrode unit is reserved between two adjacent top electrode units, a blank area with the length being more than or equal to one electrode unit is reserved between two adjacent bottom electrode units, and blank areas which are larger than or equal to the length of one electrode unit are reserved on at least the top layer and the bottom layer of the head end and/or the tail end of the electrode combination unit. Therefore, in the actual working process, the head end of the electrode composite unit is turned and stacked up and down alternately by taking the length of one electrode unit as the turning and folding unit every time to form the battery cell, in the battery cell formed after turning and folding, the polarities of two adjacent electrode units are opposite, the electrode units on the top layer and the bottom layer of the battery cell are both negative electrodes, and the electrode units on the top layer and the bottom layer are both coated by the diaphragm layer. Therefore the utility model discloses an adopt the electrode composite unit on even number layer, can avoid cutting off into a plurality of diaphragm pieces with the diaphragm, and then simplified production technology, simultaneously, because the utility model discloses a one end through with the electrode composite unit is turned over the unit and is done for turning over the unit and turn over a range upon range of in turn from top to bottom and fold up in order to form electric core with an electrode unit's length at every turn, so avoided traditional superpose diaphragm piece, negative pole piece and positive plate in proper order, improved the production efficiency of electric core.
Drawings
Fig. 1 is a schematic structural view of an electrode assembly unit according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a battery cell according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an electrode assembly unit according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a battery cell according to a second embodiment of the present invention.
Fig. 5 is a schematic structural view of an electrode assembly unit according to a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a battery cell according to a third embodiment of the present invention.
Fig. 7 is a schematic structural view of an electrode assembly unit according to a fourth embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a battery cell according to a fourth embodiment of the present invention.
Fig. 9 is a schematic structural view of an electrode assembly unit according to a fifth embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a battery cell according to a fifth embodiment of the present invention.
Fig. 11 is a schematic structural view of an electrode assembly unit according to a sixth embodiment of the present invention.
Fig. 12 is a schematic structural diagram of a battery cell according to a sixth embodiment of the present invention.
Fig. 13 is a schematic structural view of an electrode assembly unit according to a seventh embodiment of the present invention.
Fig. 14 is a schematic structural diagram of a battery cell according to a seventh embodiment of the present invention.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
Referring to fig. 1 to 14, the present invention provides an electrode assembly unit 100 with even number layers, each electrode assembly unit includes a plurality of electrode sheets, each adjacent electrode sheet has a membrane layer therebetween, the number of membrane layers is odd, the polarities of the adjacent electrode sheets are opposite, the polarity of a top electrode sheet 10 on the top layer of the electrode assembly unit 100 is opposite to the polarity of a bottom electrode sheet 70 on the bottom layer of the electrode assembly unit 100, each top electrode sheet 10 includes a plurality of top electrode units 11 arranged in a row, each bottom electrode sheet 70 includes a plurality of bottom electrode units 71 arranged in a row, a blank area 80 with a length greater than or equal to one electrode unit is reserved between two adjacent top electrode units 11, a blank area 80 with a length greater than or equal to one electrode unit is reserved between two adjacent bottom electrode units 71, and at least the top layer and the bottom layer of the head end and/or the tail end of the electrode assembly unit 100 are both reserved with a length greater than or equal to one electrode unit Blank regions of degree 80. Specifically, as shown in fig. 1 to 14, the electrode complex unit 100 includes, in order from top to bottom, a top electrode sheet 10, a first separator layer 20, a first layer electrode sheet 30, a second separator layer 40, a second layer electrode sheet 50, a third separator layer 60, and a bottom electrode sheet 70, but is not limited thereto. For example, as a modification of the present invention, a third, a fourth and a fifth membrane layer may be further disposed between the third membrane layer 60 and the bottom electrode sheet 70, so that the electrode assembly unit 100 in other embodiments may include the top electrode sheet 10, the first membrane layer 20, the first electrode sheet 30, the second membrane layer 40, the second electrode sheet 50, the third membrane layer 60, the third electrode sheet, the fourth membrane, the fourth electrode sheet, the fifth membrane and the bottom electrode sheet 70; as long as it is ensured that the polarities of the adjacent two electrode sheets are opposite, and the polarities of the top electrode sheet 10 and the bottom electrode sheet 70 are opposite, and the number of the separator layers included in the provided electrode composite unit 100 is odd, but not limited thereto. Preferably, the first electrode sheet 30 includes a plurality of first electrode units 31 spaced apart from each other and arranged in a row, the second electrode sheet 50 includes a plurality of second electrode units 51 spaced apart from each other and arranged in a row, the first electrode units 31 and the second electrode units 51 are aligned in the up-down direction, the top electrode unit 11 is aligned with the first electrode unit 31, and the bottom electrode unit 71 is aligned with the second electrode units 51; alternatively, the first and second electrode sheets 30 and 50 may be continuous strip-shaped electrode sheets, respectively, but not limited thereto. More specifically, the following:
referring to fig. 1 and 2, a first embodiment of the present invention is shown, wherein the top electrode unit 11 and the bottom electrode unit 71 are staggered in the vertical direction, the number of the bottom electrode units 71 is one more than that of the top electrode unit 11, the polarities of the top electrode units 11 are all positive, the polarities of the bottom electrode units 71 are all negative, a blank region 80 with a length greater than or equal to one electrode unit is reserved on the top electrode sheet 10 at the head end of the electrode combination unit 100, a blank region 80 with a length greater than or equal to one electrode unit is reserved on the top electrode sheet 10 at the tail end of the electrode combination unit 100, and a blank region 80 with a length greater than or equal to one electrode unit is reserved on the top electrode sheet 10, the first electrode sheet 30, the second electrode sheet 50 and the bottom electrode sheet 70 at the tail end of the electrode combination unit 100, as shown in fig. 1, when a blank region 80 with a length greater than or equal to one electrode unit is reserved on the top electrode sheet 10, that is, the trailing end of the electrode assembly unit 100 is now the composite separator layer that is composited together. As shown in fig. 1, in the first embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 1), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 in the leftmost position obtained after turning over is turned over upward, then the turning-over unit 110 in the leftmost position obtained after turning over is turned over downward … … until the turning-over is turned over to the previous row of the tail end of the electrode assembly unit 100, and finally the tail end of the electrode assembly unit 100 is turned over downward to cover the bottom electrode unit 71 in the previous row.
Referring to fig. 3 and 4, a second embodiment of the present invention is shown, wherein the top electrode unit 11 and the bottom electrode unit 71 are staggered in the vertical direction, the number of the bottom electrode units 71 is one more than that of the top electrode unit 11, a blank area 80 greater than or equal to one electrode unit length is reserved on both the top electrode sheet 10 and the bottom electrode sheet 70 at the head end of the electrode combination unit 100, and a blank area 80 greater than or equal to one electrode unit length is reserved on the top electrode sheet 10 at the tail end of the electrode combination unit 100. As shown in fig. 3, in the second embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 3), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
Please refer to fig. 5 and fig. 6, which illustrate a third embodiment of the present invention, wherein the top electrode unit 11 and the bottom electrode unit 71 are staggered in the vertical direction, the number of the bottom electrode units 71 is equal to the number of the top electrode units 11, the polarity of the top electrode unit 11 is positive, the polarity of the bottom electrode unit 71 is negative, a blank area 80 greater than or equal to one electrode unit length is reserved on the top electrode sheet 10 and the bottom electrode sheet 70 at the head end of the electrode assembly unit 100, and a blank area 80 greater than or equal to one electrode unit length is reserved on the second electrode sheet 50 and the bottom electrode sheet 70 at the tail end of the electrode assembly unit 100. As shown in fig. 5, in the third embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 5), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
Please refer to fig. 7 and 8, which are a fourth embodiment of the present invention, wherein the top electrode unit 11 and the bottom electrode unit 71 are staggered in the vertical direction, the number of the bottom electrode units 71 is equal to the number of the top electrode units 11, a blank area 80 greater than or equal to one electrode unit length is reserved on the top electrode sheet 10 at the head end of the electrode combination unit 100, and the blank area 80 greater than or equal to one electrode unit length is reserved on the top electrode sheet 10, the second electrode sheet 50 and the bottom electrode sheet 70 at the tail end of the electrode combination unit 100. As shown in fig. 7, in the fourth embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 7), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
Please refer to fig. 9 and 10, which are a fifth embodiment of the present invention, wherein the number of the bottom electrode units 71 is one more than the number of the top electrode units 11, each top electrode unit 11 is aligned with one bottom electrode unit 71 in the vertical direction, the polarity of the top electrode unit 11 is positive, the polarity of the bottom electrode unit 71 is negative, a blank area 80 greater than or equal to one electrode unit length is reserved on each of the top electrode sheet 10 and the bottom electrode sheet 70 at the head end of the electrode combination unit 100, and a blank area 80 greater than or equal to one electrode unit length is reserved on the top electrode sheet 10 at the tail end of the electrode combination unit 100. As shown in fig. 9, in the fifth embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 9), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
Referring to fig. 11 and 12, a sixth embodiment of the present invention is shown, wherein the number of top electrode units 11 is equal to the number of bottom electrode units 71, the top electrode units 11 are aligned with the bottom electrode units 71 in the vertical direction, and the polarity of the top electrode unit 11 is positive, the polarity of the bottom electrode unit 71 is negative, and a blank area 80 which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate 10 and the bottom layer electrode plate 70 at the head end of the electrode combination unit 100, an end section 90 is reserved at the tail end of the electrode combination unit 100, a blank area 80 which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate 10 and the bottom layer electrode plate 70 at one end of the end section 90, and a blank area 80 which is greater than or equal to one electrode unit length is reserved on the top layer electrode plate 10, the second layer electrode plate 50 and the bottom layer electrode plate 70 at the other end of the end section 90. As shown in fig. 11, in the sixth embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 11), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
Please refer to fig. 13 and 14, which are a seventh embodiment of the present invention, wherein the number of the top electrode units 11 is equal to the number of the bottom electrode units 71, the top electrode units 11 are aligned with the bottom electrode units 71 in the vertical direction, a blank area 80 greater than or equal to one electrode unit length is reserved on each of the top electrode sheet 10 and the bottom electrode sheet 70 at the head end of the electrode combination unit 100, and a blank area 80 greater than or equal to one electrode unit length is reserved on each of the top electrode sheet 10, the second electrode sheet 50 and the bottom electrode sheet 70 at the tail end of the electrode combination unit 100. As shown in fig. 13, in the seventh embodiment of the present invention, the electrode assembly unit 100 is turned over from the head end (i.e. the left end shown in fig. 13), the turning-over unit 110 in the first row is turned over downward, then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over upward, and then the turning-over unit 110 located at the leftmost position obtained after turning over is turned over downward … … until the turning-over unit 100 is turned over to the tail end.
It is noted that in various embodiments provided above, the two separator layers are hot pressed directly together when there is no electrode element between the two separator layers.
Compared with the prior art, because the utility model discloses an electrode composite unit 100 on even layer includes a plurality of layers of electrode slice, all there is the diaphragm layer between the adjacent two-layer electrode slice, and the number of piles on diaphragm layer is the odd, polarity between the adjacent two-layer electrode slice is opposite, the polarity that is located top layer electrode slice 10 on electrode composite unit 100 top layer is opposite with the polarity that is located bottom electrode slice 70 on electrode composite unit 100 bottom layer, and top layer electrode slice 10 includes a plurality of top layer electrode units 11 of arranging the in line, bottom electrode slice 70 includes a plurality of bottom electrode units 71 of arranging the in line, reserve between two adjacent top layer electrode units 11 and have the blank region 80 that is greater than or equal to an electrode unit length, reserve between two adjacent bottom electrode units 71 and have the blank region 80 that is greater than or equal to an electrode unit length, and the at least top layer and the bottom of the head end and/or the tail end of electrode composite unit 100 all reserve the blank region that is A white region 80. Therefore, in an actual working process, the head end of the electrode composite unit 100 is turned and stacked up and down alternately by taking the length of one electrode unit as the turning and folding unit 110 to form a battery cell, in the battery cell formed after turning and folding, the polarities of two adjacent electrode units are opposite, the electrode units on the top layer and the bottom layer of the battery cell are both negative electrodes, and the electrode units on the top layer and the bottom layer are both coated by the diaphragm layer. Therefore the utility model discloses an adopt the electrode composite unit 100 on even number layer, can avoid cutting off the diaphragm into a plurality of diaphragm pieces, and then simplified production technology, simultaneously, because the utility model discloses a through turn over the unit 110 with the length of an electrode unit at every turn with the one end of electrode composite unit 100 and do to turn over from top to bottom turn over and roll over a range upon range of in order and form electric core, so avoided traditional with diaphragm piece, negative pole piece and positive plate superpose in proper order, improved the production efficiency of electric core.
The above disclosure is only a preferred embodiment of the present invention, and the function is to facilitate the understanding and implementation of the present invention, which is not to be construed as limiting the scope of the present invention, and therefore, the present invention is not limited to the claims.

Claims (15)

1. An even-numbered layer of electrode assembly units, comprising: the electrode composite unit comprises a plurality of layers of electrode plates, a diaphragm layer is arranged between every two adjacent layers of electrode plates, the number of the membrane layers is odd, the polarities of the adjacent two electrode plates are opposite, the polarity of the top electrode plate positioned at the top layer of the electrode combination unit is opposite to the polarity of the bottom electrode plate positioned at the bottom layer of the electrode combination unit, the top electrode sheet comprises a plurality of top electrode units arranged in a row, the bottom electrode sheet comprises a plurality of bottom electrode units arranged in a row, a blank area with the length being more than or equal to one electrode unit is reserved between two adjacent top electrode units, a blank area with the length being more than or equal to one electrode unit is reserved between two adjacent bottom electrode units, and blank areas which are larger than or equal to the length of one electrode unit are reserved on at least the top layer and the bottom layer of the head end and/or the tail end of the electrode combination unit.
2. The even-numbered layer of electrode recombination units of claim 1, wherein: the electrode composite unit sequentially comprises the top electrode plate, the first diaphragm layer, the first electrode plate, the second diaphragm layer, the second electrode plate, the third diaphragm layer and the bottom electrode plate from top to bottom.
3. The even-numbered layer of electrode recombination units of claim 2, wherein: the first electrode sheet comprises a plurality of first electrode units which are spaced apart from each other and arranged in a row, the second electrode sheet comprises a plurality of second electrode units which are spaced apart from each other and arranged in a row, the first electrode units and the second electrode units are aligned in the vertical direction, the top electrode units are aligned with the first electrode units, and the bottom electrode units are aligned with the second electrode units.
4. The even-numbered layer of electrode recombination units of claim 2, wherein: the first layer of electrode sheet and the second layer of electrode sheet are each a continuous strip-shaped electrode sheet.
5. The even-numbered layer of electrode assembly units of claim 3 or 4, wherein: the top layer electrode units and the bottom layer electrode units are staggered in the vertical direction, the number of the bottom layer electrode units is one more than that of the top layer electrode units, the polarities of the top layer electrode units are all positive electrodes, and the polarity of the bottom layer electrode units is negative electrodes.
6. The even-numbered layer of electrode assembly units of claim 3 or 4, wherein: the top layer electrode units and the bottom layer electrode units are staggered in the vertical direction, the number of the bottom layer electrode units is equal to that of the top layer electrode units, the polarity of the top layer electrode units is positive, and the polarity of the bottom layer electrode units is negative.
7. The even-numbered layer of electrode assembly units of claim 3 or 4, wherein: the number of the bottom electrode units is one more than that of the top electrode units, each top electrode unit is aligned with one bottom electrode unit in the vertical direction, the polarity of the top electrode unit is positive, and the polarity of the bottom electrode unit is negative.
8. The even-numbered layer of electrode assembly units of claim 3 or 4, wherein: the number of the top layer electrode units is equal to that of the bottom layer electrode units, the top layer electrode units are aligned with the bottom layer electrode units in the vertical direction, the polarity of the top layer electrode units is positive, and the polarity of the bottom layer electrode units is negative.
9. The even-numbered layer of electrode recombination units of claim 5, wherein: a blank area which is larger than or equal to one electrode unit length is reserved on the top electrode plate at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate, the first electrode plate, the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
10. The even-numbered layer of electrode recombination units of claim 5, wherein: blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate at the tail end of the electrode combination unit.
11. The even-numbered layer of electrode recombination units of claim 6, wherein: blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
12. The even-numbered layer of electrode recombination units of claim 6, wherein: a blank area which is larger than or equal to one electrode unit length is reserved on the top electrode plate at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate, the second electrode plate and the bottom electrode plate at the tail end of the electrode combination unit.
13. The even-numbered layer of electrode recombination units of claim 7, wherein: blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate and the bottom electrode plate at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the top electrode plate at the tail end of the electrode combination unit.
14. The even-numbered layer of electrode recombination units of claim 8, wherein: blank areas which are larger than or equal to one electrode unit length are reserved on the top layer electrode slice and the bottom layer electrode slice at the head end of the electrode combination unit, a tail section is reserved at the tail end of the electrode combination unit, blank areas which are larger than or equal to one electrode unit length are reserved on the top layer electrode slice and the bottom layer electrode slice at one end of the tail section, and blank areas which are larger than or equal to one electrode unit length are reserved on the top layer electrode slice, the second layer electrode slice and the bottom layer electrode slice at the other end of the tail section.
15. The even-numbered layer of electrode recombination units of claim 8, wherein: blank areas which are larger than or equal to one electrode unit length are reserved on the top layer electrode slice and the bottom layer electrode slice at the head end of the electrode combination unit, and blank areas which are larger than or equal to one electrode unit length are reserved on the top layer electrode slice, the second layer electrode slice and the bottom layer electrode slice at the tail end of the electrode combination unit.
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