CN205564899U - Coiling type battery cell - Google Patents
Coiling type battery cell Download PDFInfo
- Publication number
- CN205564899U CN205564899U CN201620318807.4U CN201620318807U CN205564899U CN 205564899 U CN205564899 U CN 205564899U CN 201620318807 U CN201620318807 U CN 201620318807U CN 205564899 U CN205564899 U CN 205564899U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- collector
- lug
- type battery
- initial segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model provides a coiling type battery cell, include: first pole piece has the first mass flow body and coats at a first album of fluidic active material layer, the second pole piece has the second mass flow body and has the blank second mass flow body with the coating at the 2nd active material layer of second collection fluidic, the second coiling initial section of second pole piece, first pole piece and second pole piece are kept apart to the barrier film, the first ploe ear is connected with first mass flow body electricity, the second ploe ear is fixed in the blank second mass flow body. The first volume of first pole piece includes around initial section: the main part is in second coiling initial section's the outside, and main part length is greater than second coiling initial section's length, inflection portion, at the inboard of main part, inflection portion does not overlap in the thickness direction with the second ploe ear, inflection portion has the blank first mass flow body. The position of first ploe ear surpasss second coiling initial section's tip, the third coiling initial section of barrier film just lies in between first ploe ear and the second ploe ear to inboard inflection.
Description
Technical field
This utility model relates to field of batteries, particularly relates to a kind of takeup type battery core.
Background technology
Along with the business-like development of lithium-ion electric core, market is more and more higher to the requirement of its energy density.With reference to Fig. 1, often
The blank plus plate current-collecting body 111 (Al foil, aluminium foil) of the head of the takeup type battery core of rule is shorter than negative current collector 211 (Cu
Foil, Copper Foil), and the inside of takeup type battery core need blank coil two-layer isolating membrane 3 (Fig. 1 dashed box around part isolating membrane i.e.
Isolating membrane for blank coil), not only cause the waste of isolating membrane 3, and isolating membrane 3 and positive pole ear 4, negative lug 5 are existed
On thickness direction T, overlap, therefore increases the thickness of battery core thus reduces the energy density of battery core.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of takeup type battery core, its energy
Minimizing isolating membrane and the usage amount of gummed paper, and reduce the thickness of takeup type battery core, improve the energy density of takeup type battery core.
To achieve these goals, this utility model provides a kind of takeup type battery core, comprising: the first pole piece, has
First collector and the first active material layer being coated at least one surface of the first collector；Second pole piece, has second
Collector and the second active material layer being coated at least one surface of the second collector, the volume Two of the second pole piece is around initial
Section has blank second collector of uncoated second active material layer；Isolating membrane, be arranged at the first pole piece and the second pole piece it
Between, so that the first pole piece and the second pole piece are kept apart；First lug, electrically connects with the first collector；Second lug, is fixed on sky
White second collector.
Wherein, the first volume of the first pole piece includes around the initial segment: main part, is in volume Two around the initial segment through-thickness
Outside, and the length that main part is along its length more than volume Two around the initial segment length along its length；And revers turn part,
It is connected with main part and is in the inner side of main part through-thickness, and revers turn part does not weighs in a thickness direction with the second lug
Folded；Revers turn part has blank first collector of uncoated first active material layer.
In the longitudinal direction, the position of the first lug exceeds volume Two around the end of the initial segment；At least one of isolation
The 3rd winding the initial segment inner side inflection to thickness direction of film, and in the longitudinal direction, to the inner side inflection of thickness direction
The 3rd winding the initial segment between the first lug and the second lug.
The beneficial effects of the utility model are as follows:
According in takeup type battery core of the present utility model, volume Two is less than the length of main part around the initial segment, so every
Wind the initial segment blank coil without long length as prior art from the 3rd of film, thus reduce the usage amount of isolating membrane, fall
Low cost.Further, since the 3rd winding the initial segment of isolating membrane is in the longitudinal direction between the first lug and the second lug,
So the thickness no longer thickness with the first lug and the second lug of the 3rd winding the initial segment of isolating membrane superposes, thus reduce volume
The thickness of wound battery core, improves the energy density of takeup type battery core.Meanwhile, described takeup type battery core can realize automatic metaplasia
Produce；Further, since revers turn part is not the most overlapping with the second lug, revers turn part will not increase the thickness of battery core, and
The most only side, the end of revers turn part is relative with the second pole piece, therefore only need to paste gummed paper in this side, and another
Side is relative with main part, therefore without pasting gummed paper, compared with prior art, decreases the consumption of gummed paper, has saved cost,
And further reduce battery core thickness.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the takeup type battery core of prior art；
Fig. 2 is the schematic diagram of the embodiment according to takeup type battery core of the present utility model, wherein the first volume around the initial segment,
Volume Two all indicates by dashed box around the initial segment, the 3rd winding the initial segment；
Fig. 3 is the schematic diagram of another embodiment according to takeup type battery core of the present utility model, and wherein the first volume is around initial
Section, volume Two all indicate by dashed box around the initial segment, the 3rd winding the initial segment；
Fig. 4 is the schematic diagram of the another embodiment according to takeup type battery core of the present utility model, and wherein the first volume is around initial
Section, volume Two all indicate by dashed box around the initial segment, the 3rd winding the initial segment；
Fig. 5 is the schematic diagram of the another embodiment according to takeup type battery core of the present utility model, and wherein the first volume is around initial
Section, volume Two all indicate by dashed box around the initial segment, the 3rd winding the initial segment；
Fig. 6 is the schematic diagram of an embodiment of formation the first lug according to takeup type battery core of the present utility model, wherein
For the sake of clarity, the first collector is not directed to the first active material layer；
Fig. 7 is the schematic diagram of another embodiment of formation the first lug according to takeup type battery core of the present utility model, its
In for the sake of clarity, the first collector is not directed to the first active material layer；
Fig. 8 is the shaping schematic diagram according to takeup type battery core of the present utility model.
Wherein, description of reference numerals is as follows:
1 first pole piece 5 second lug
The 11 first collector E1 first volumes are around the initial segment
111 blank first collector E11 main parts
12 first active material layer E12 revers turn parts
13 first groove E2 volume Twos are around the initial segment
2 second pole piece E3 the 3rd wind the initial segment
21 second collector S1 first volume pins
211 blank second collector S2 volume Two pins
22 second active material layer G clip slots
3 isolating membrane T thickness directions
4 first lug L length directions
Detailed description of the invention
Describe takeup type battery core of the present utility model with reference to the accompanying drawings in detail.
With reference to Fig. 2 to Fig. 5, include according to takeup type battery core of the present utility model: the first pole piece 1, there is the first collector
11 and the first active material layer 12 of being coated on first at least one surface of collector 11；Second pole piece 2, has the second afflux
Body 21 and the second active material layer 22 being coated on second at least one surface of collector 21, the volume Two of the second pole piece 2 around
The initial segment E2 has blank second collector 211 of uncoated second active material layer 22；Isolating membrane 3, is arranged at the first pole piece 1
With second between pole piece 2, so that the first pole piece 1 and the second pole piece 2 are kept apart；First lug 4, is electrically connected with the first collector 11
Connect；Second lug 5, is fixed on blank second collector 211.
Wherein, the first volume of the first pole piece 1 includes around the initial segment E1: main part E11, is in volume Two around the initial segment E2 edge
The outside of thickness direction T, and the length of main part E11 L along its length more than volume Two around the initial segment E2 L's along its length
Length (i.e. the main part E11 of part exceeds volume Two in the length directionl around the end of the initial segment E2)；And revers turn part E12,
Be connected with main part E11 and be in the inner side of main part E11 through-thickness T, and revers turn part E12 not with the second lug 5 in thickness
Overlap on degree direction T；Revers turn part E12 has blank first collector 111 of uncoated first active material layer 12.
In the length directionl, the position of the first lug 4 exceeds volume Two around the end of the initial segment E2；At least one of
The 3rd winding the initial segment E3 inner side inflection to thickness direction T of isolating membrane 3, and in the length directionl, to thickness direction T
Inner side inflection the 3rd winding the initial segment E3 between the first lug 4 and the second lug 5.
According in takeup type battery core of the present utility model, volume Two is less than the length of main part E11, institute around the initial segment E2
Wind the initial segment E3 blank coil without long length as prior art with the 3rd of isolating membrane 3 the, thus reduce making of isolating membrane 3
Consumption, reduces cost.Further, since the 3rd winding the initial segment E3 of isolating membrane 3 is positioned at the first lug 4 He in the length directionl
Between second lug 5, thus the thickness of the 3rd winding the initial segment E3 of isolating membrane 3 no longer with the first lug 4 and the second lug 5
Thickness superposition, thus reduce the thickness of takeup type battery core, improve the energy density of takeup type battery core.Meanwhile, described takeup type electricity
Core can realize automated production；Further, since revers turn part E12 is not the most overlapping with the second lug 5, revers turn part
E12 will not increase the thickness of battery core, and the most only side, the end of revers turn part E12 is relative with the second pole piece 2,
Therefore only gummed paper need to be pasted in this side (owing to, in actual production, burr can be left in the end of revers turn part E12, easily punctures isolation
Film 3 and contact with the second pole piece 2, and cause short circuit), and opposite side is relative with main part E11, therefore without glue
Paper, compared with prior art, decreases the consumption of gummed paper, has saved cost, and has further reduced battery core thickness.
In the embodiment according to takeup type battery core of the present utility model, through-thickness T, at the of the second pole piece 2
The two adjacent inner side and outer side of winding the initial segment E2 are respectively equipped with one layer of isolating membrane 3, and described two-layer isolating membrane 3 is all beyond the
The end of two winding the initial segment E2, collectively constitutes isolation beyond the volume Two described two-layer isolating membrane 3 around the end of the initial segment E2
3rd winding the initial segment E3 of film 3.In other words, in the takeup type battery core after final molding, the 3rd of isolating membrane 3 winds
Beginning section E3 by beyond volume Two around the isolating membrane of the non-inflection of the end of the initial segment E2 and through-thickness T inflection at volume Two
Part isolating membrane composition inside the initial segment E2.The length of the 3rd winding the initial segment E3 of isolating membrane 3 regards takeup type battery core
Depending on length, minimum length is more than or equal to 3mm, preferably 3mm～100mm, further preferred 8mm～30mm.Formed
In takeup type battery core, the 3rd winding the initial segment E3 is two-layer isolating membrane, it is preferable that this two-layer isolating membrane fits together.
In the embodiment according to takeup type battery core of the present utility model, the first pole piece 1 can be anode pole piece or
Cathode pole piece, accordingly, the second pole piece 2 is cathode pole piece or anode pole piece.Preferably, the first pole piece 1 is anode pole piece, the
Two pole pieces 2 are cathode pole piece, and accordingly, the first active material layer 12 is positive electrode active material layer, is specifically as follows cobalt acid lithium, phosphorus
At least one in acid ferrum lithium, LiMn2O4.Second active material layer 22 is negative electrode active material layer, is specifically as follows in carbon and silicon
At least one.
In the embodiment according to takeup type battery core of the present utility model, the first lug 4 is one or more；Second pole
Ear 5 is one.With reference to Fig. 5, when the first lug 4 of takeup type battery core is multiple, multiple first preferred through-thickness of lug 4
T aligns, but, due to mismachining tolerance, the aligned position of each first lug 4 allows also to certain deviation.
In the embodiment according to takeup type battery core of the present utility model, the first collector 11 is aluminium foil, the second afflux
Body 21 is Copper Foil.
In the embodiment according to takeup type battery core of the present utility model, have not with reference to Fig. 2 and Fig. 3, main part E11
Coat blank first collector 111 of the first active material layer 12.
In the embodiment according to takeup type battery core of the present utility model, the edge with reference to Fig. 4 and Fig. 5, main part E11 is thick
It is first surface that degree direction T deviates from volume Two around a side surface of the initial segment E2, and first surface is coated with the first active material layer
12, and the second pole piece 2 with first surface directly relative to side surface-coated have the second active material layer 22.
In the embodiment according to takeup type battery core of the present utility model, with reference to Fig. 2 to Fig. 4, the second collector 21
With blank first collector 111 directly relative to uncoated second active material layer 22 in side.Due to blank first collector 111
Upper uncoated first active material layer 12, if with blank first collector 111 directly relative to the second collector 21 on coat
Upper second active material layer 22, not only capacity is not helped (blank first collector 111 and with blank first collector
111 directly relative to the second collector 21 between, lithium ion cannot realize come and go embed and deintercalation), on the contrary increase battery core thickness
Thus reduce battery core energy density, so the second collector 21 with blank first collector 111 directly relative to side
Two active material layers 22 can save, it is to avoid the waste of material, and improves battery core energy density.
In the embodiment according to takeup type battery core of the present utility model, with reference to Fig. 2 to Fig. 4, the first collector 11
With blank second collector 211 directly relative to uncoated first active material layer 12 in side.Due to blank second collector 211
Upper uncoated second active material layer 22, if with blank second collector 211 directly relative to the first collector 11 on coat
Upper first active material layer 12, not only capacity is not helped (blank second collector 211 and with blank second collector
211 directly relative to the first collector 11 between, lithium ion cannot realize come and go embed and deintercalation), on the contrary increase battery core thickness
Thus reduce battery core energy density, so the first collector 11 with blank second collector 211 directly relative to side
One active material layer 12 can save, it is to avoid the waste of material, and improves battery core energy density.
In the embodiment according to takeup type battery core of the present utility model, with reference to Fig. 2, the main part E11 of the first pole piece 1
It it is all blank first collector 111 with revers turn part E12.
In the embodiment according to takeup type battery core of the present utility model, with reference to Fig. 5, the first pole piece 1 also has first
Groove 13, bottom for blank the first collector 111 of exposing week side be the first active material layer 12, and the first groove 13 is being grown
Position on degree direction L exceeds volume Two around the end of the initial segment E2.
In the embodiment according to takeup type battery core of the present utility model, the first lug 4 and the first collector 11 one
Formed.For example, referring to Fig. 6, the first lug 4 is directly formed by the first collector 11 cutting.It is further preferred that as it is shown in fig. 7,
First lug 4 is directly cut by the first collector 11 and is bent and forms.When the first lug 4 is multiple, it is preferable that the first lug
4 are integrally formed with the first collector 11.
In the embodiment according to takeup type battery core of the present utility model, the first lug 4 independently form and be fixed on right
(such as, the first lug 4 is fixed on blank the first collector 111 (reference at revers turn part E12 to blank the first collector 111 answered
Fig. 3 to Fig. 5), or the first lug 4 is fixed on blank the first collector at the first groove 13 111 (with reference to Fig. 5), or the
The main part E11 of one pole piece 1 is blank first collector 111 (with reference to Fig. 2) and the first lug 4 is fixed on main part E11's
Blank first collector 111).
In the embodiment according to takeup type battery core of the present utility model, with reference to Fig. 2, the first lug 4 is fixed on main body
Blank first collector 111 of portion E11, revers turn part E12 is not the most overlapping around the initial segment E2 with volume Two, preferably
Revers turn part E12 is not the most overlapping with the first lug 4.
In the embodiment according to takeup type battery core of the present utility model, the first lug 4 can be by being fixedly welded on
Corresponding blank the first collector 111, described in be welded as Laser Welding, ultrasonic bonding or electric resistance welding.Second lug 5 preferably employs
It is fixedly welded on volume Two blank the second collector 211 around the initial segment E2.
In the embodiment according to takeup type battery core of the present utility model, the end of revers turn part E12 is in the thickness directiont
With the second pole piece 2 directly relative to side post gummed paper (not shown)；Or second the end with revers turn part E12 of pole piece 2 direct
Gummed paper (not shown) is posted in relative side.The burr of the end that gummed paper is prevented from revers turn part E12 punctures isolating membrane 3 and with
Two pole pieces 2 contact and cause short circuit.
According in takeup type battery core of the present utility model, with reference to Fig. 8, described takeup type battery core is by the length directionl
The first volume pin S1 being sequentially placed and volume Two pin S2 winding forms.The part clamping of the 3rd winding the initial segment E3 of isolating membrane 3
In clip slot G between first volume pin S1 and volume Two pin S2, when first volume pin S1 and volume Two pin S2 rotates, isolating membrane 3
And the first pole piece 1 and the second pole piece 2 separated by isolating membrane 3 is wound on first volume pin S1 and volume Two pin S2, to be spooled complete
Cheng Hou, extracts first volume pin S1 and volume Two pin S2 out, i.e. completes the molding of takeup type battery core.
Claims (12)
1. a takeup type battery core, including:
First pole piece (1), has the first collector (11) and be coated on the first collector (11) at least one surface first
Active material layer (12)；
Second pole piece (2), has the second collector (21) and be coated on the second collector (21) at least one surface second
Active material layer (22), the volume Two of the second pole piece (2) has uncoated second active material layer (22) around the initial segment (E2)
Blank second collector (211)；
Isolating membrane (3), is arranged between the first pole piece (1) and the second pole piece (2), with by the first pole piece (1) and the second pole piece (2)
Keep apart；
First lug (4), electrically connects with the first collector (11)；
Second lug (5), is fixed on blank second collector (211)；
It is characterized in that,
The first volume of the first pole piece (1) including around the initial segment (E1):
Main part (E11), is in the volume Two outside around the initial segment (E2) through-thickness (T), and main part (E11) is along length
The length in direction (L) is more than the volume Two length around the initial segment (E2) (L) along its length；And
Revers turn part (E12), is connected with main part (E11) and is in the inner side of main part (E11) through-thickness (T), and inflection
Portion (E12) is not upper overlapping at thickness direction (T) with the second lug (5)；Revers turn part (E12) has uncoated first active material layer
(12) blank the first collector (111)；
On length direction (L), the position of the first lug (4) exceeds volume Two around the end of the initial segment (E2)；At least partially
The 3rd winding the initial segment (E3) of isolating membrane (3) to the inner side inflection of thickness direction (T), and on length direction (L), to
3rd winding the initial segment (E3) of the inner side inflection of thickness direction (T) is positioned between the first lug (4) and the second lug (5).
Takeup type battery core the most according to claim 1, it is characterised in that through-thickness (T), at the second pole piece (2)
Volume Two is respectively equipped with one layer of isolating membrane (3), and described two-layer isolating membrane (3) around the inner side and outer side that the initial segment (E2) is adjacent
All beyond volume Two around the end of the initial segment (E2), beyond the volume Two described two-layer isolating membrane around the end of the initial segment (E2)
(3) the 3rd winding the initial segment (E3) of isolating membrane (3) is collectively constituted.
Takeup type battery core the most according to claim 1, it is characterised in that the first pole piece (1) is anode pole piece, the second pole piece
(2) it is cathode pole piece.
Takeup type battery core the most according to claim 1, it is characterised in that
First lug (4) is one or more；
Second lug (5) is one.
Takeup type battery core the most according to claim 1, it is characterised in that main part (E11) has uncoated first activity
The blank the first collector (111) of material layer (12).
Takeup type battery core the most according to claim 1, it is characterised in that the through-thickness (T) of main part (E11) deviates from
Volume Two is first surface around a side surface of the initial segment (E2), and first surface is coated with the first active material layer (12), and
Second pole piece (2) with first surface directly relative to side surface-coated have the second active material layer (22).
Takeup type battery core the most according to claim 1, it is characterised in that the second collector (21) with blank first afflux
Body (111) directly relative to uncoated second active material layer in side (22).
Takeup type battery core the most according to claim 1 or 5, it is characterised in that the first collector (11) with blank second
Collector (211) directly relative to uncoated first active material layer in side (12).
Takeup type battery core the most according to claim 1, it is characterised in that the first pole piece (1) also has the first groove (13),
For the blank the first collector (111) exposed, all sides are the first active material layer (12) in bottom, and the first groove (13) is being grown
Position on degree direction (L) exceeds volume Two around the end of the initial segment (E2).
Takeup type battery core the most according to claim 1, it is characterised in that the first lug (4) and the first collector (11)
Body is formed；Or
First lug (4) independently forms and is fixed on the blank the first collector (111) of correspondence.
11. takeup type battery cores according to claim 1, it is characterised in that
The end of revers turn part (E12) thickness direction (T) upper with the second pole piece (2) directly relative to side post gummed paper；Or
Second pole piece (2) with the end of revers turn part (E12) directly relative to side post gummed paper.
12. takeup type battery cores according to claim 5, it is characterised in that
First lug (4) is fixed on the blank the first collector (111) of main part (E11), revers turn part (E12) not with volume Two around
The initial segment (E2) is not upper heavy at thickness direction (T) with the first lug (4) in the upper overlap of thickness direction (T), preferably revers turn part (E12)
Folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318807.4U CN205564899U (en) | 2016-04-15 | 2016-04-15 | Coiling type battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318807.4U CN205564899U (en) | 2016-04-15 | 2016-04-15 | Coiling type battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564899U true CN205564899U (en) | 2016-09-07 |
Family
ID=56808092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620318807.4U Withdrawn - After Issue CN205564899U (en) | 2016-04-15 | 2016-04-15 | Coiling type battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564899U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848118A (en) * | 2017-03-21 | 2017-06-13 | 惠州亿纬锂能股份有限公司 | A kind of button lithium battery capacitor and its assembly method |
| CN107302110A (en) * | 2016-04-15 | 2017-10-27 | 宁德新能源科技有限公司 | Takeup type battery core |
| WO2018054332A1 (en) * | 2016-09-22 | 2018-03-29 | 宁德新能源科技有限公司 | Wound cell |
| CN109980178A (en) * | 2019-04-03 | 2019-07-05 | 焦作市亿星锂电科技有限公司 | A kind of coiled lithium ion battery pole piece |
| CN113258028A (en) * | 2021-05-12 | 2021-08-13 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
-
2016
- 2016-04-15 CN CN201620318807.4U patent/CN205564899U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302110A (en) * | 2016-04-15 | 2017-10-27 | 宁德新能源科技有限公司 | Takeup type battery core |
| CN107302110B (en) * | 2016-04-15 | 2023-05-16 | 宁德新能源科技有限公司 | Winding type battery cell |
| WO2018054332A1 (en) * | 2016-09-22 | 2018-03-29 | 宁德新能源科技有限公司 | Wound cell |
| EP3518315A4 (en) * | 2016-09-22 | 2020-05-27 | Ningde Amperex Technology Limited | Wound cell |
| CN106848118A (en) * | 2017-03-21 | 2017-06-13 | 惠州亿纬锂能股份有限公司 | A kind of button lithium battery capacitor and its assembly method |
| CN106848118B (en) * | 2017-03-21 | 2020-01-03 | 惠州亿纬锂能股份有限公司 | Button type lithium battery capacitor and assembling method thereof |
| CN109980178A (en) * | 2019-04-03 | 2019-07-05 | 焦作市亿星锂电科技有限公司 | A kind of coiled lithium ion battery pole piece |
| CN113258028A (en) * | 2021-05-12 | 2021-08-13 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205564899U (en) | Coiling type battery cell | |
| CN205828578U (en) | Secondary cell takeup type battery core | |
| CN105161673B (en) | The manufacturing process and multi pole ears battery of a kind of multi pole ears battery core | |
| CN205882096U (en) | Coiling type battery cell | |
| CN205828571U (en) | Takeup type battery core | |
| WO2007071122A1 (en) | A wind type lithium ion battery with a soft package case and a method of manufacture the same | |
| CN102136603A (en) | Polymer lithium-ion battery and manufacture method thereof | |
| CN205508963U (en) | Coiling type battery cell | |
| CN201556685U (en) | Super capacity cell | |
| US20190067746A1 (en) | Wound-type cell | |
| CN205508964U (en) | Coiling type battery cell | |
| CN107785606A (en) | Battery and preparation method thereof | |
| CN107302110A (en) | Takeup type battery core | |
| CN205828576U (en) | Takeup type battery core | |
| CN205828577U (en) | Takeup type battery core | |
| CN205508965U (en) | Winding - type batteries and book needle | |
| CN216436083U (en) | Roll core and battery | |
| CN107293805B (en) | Winding type battery cell and winding needle | |
| CN205882099U (en) | Coiling type battery cell | |
| CN106992313B (en) | Secondary battery | |
| CN205564900U (en) | Coiling type battery cell | |
| CN102024990A (en) | Method for manufacturing cells of power lithium ion batteries | |
| CN107302109B (en) | Winding type battery cell | |
| CN205828550U (en) | Takeup type battery core | |
| CN205723828U (en) | Takeup type battery core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20230516 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20230516 |