CN205723828U - Takeup type battery core - Google Patents
Takeup type battery core Download PDFInfo
- Publication number
- CN205723828U CN205723828U CN201620661316.XU CN201620661316U CN205723828U CN 205723828 U CN205723828 U CN 205723828U CN 201620661316 U CN201620661316 U CN 201620661316U CN 205723828 U CN205723828 U CN 205723828U
- Authority
- CN
- China
- Prior art keywords
- collector
- battery core
- type battery
- takeup type
- blank
- 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- Withdrawn - After Issue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
- 239000012528 membrane Substances 0.000 claims abstract description 46
- 239000011149 active material Substances 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims description 12
- 239000005030 aluminium foil Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000007773 negative electrode material Substances 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 5
- 239000007774 positive electrode material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
This utility model provides a kind of takeup type battery core, and it includes the first pole piece, the second pole piece and isolating membrane.First pole piece includes: the first collector；And first active material layer.Second pole piece includes: the second collector；And second active material layer.At the winding ending of takeup type battery core, the most uncoated first active material layer and be defined as the first blank collector on positive and negative two surfaces of the first collector, the most uncoated second active material layer and be defined as the second blank collector on positive and negative two surfaces of the second collector.The initial segment of the second blank collector is in inside the initial segment of the first blank collector, the length of the second blank collector is the length of blank collector more than first, and second the part beyond the first blank collector of blank collector form the folding part of the second blank collector, at least one in two big faces of folding part parcel takeup type battery core and two sides.When testing for drift bolt, drift bolt is effective, safe to use.
Description
Technical field
This utility model relates to field of batteries, particularly relates to a kind of takeup type battery core.
Background technology
In prior art, positive electrode plate and negative electrode plate of lithium ion battery is wound into battery core, owing to positive/negative plate is finished up by dressing district,
When carrying out drift bolt test, after draw point thrusts the battery completely filled, the positive and negative plate instantaneous short circuit of band dressing, release substantial amounts of immediately
Heat, easily catching fire.In order to improve the drift bolt performance of battery, prior art employing arranges one section at positive plate afterbody and adds vast sky
Aluminium foil, arranges one section at negative plate afterbody and adds vast sky Copper Foil, and extend barrier film, and according to empty aluminium foil-barrier film-sky copper
The order that paper tinsel-barrier film is arranged from outside to inside was around battery core outer ring one week, and this structure is referred to as waistcoat (MJ) structure, thus when outside
When sharp conductor pierces through battery, empty aluminium foil and empty Copper Foil can be short-circuited rapidly, and by sky aluminium foil and anode strip (Al-Anode),
The short circuit current shunting of anode strip and cathode sheets (Anode-Cathode), makes the electricity within battery core release, to prevent battery from rising
Fire, thus improve the safety of battery.
But prior art yet suffers from some problems: first, reduce the energy density of battery core, because MJ structure is not wrapped
Containing active substance, the most around the number of plies, energy density is the lowest, relatively big for surface area, energy in the case of particularly battery core is relatively thin
Amount loss is bigger.Secondly, add cost, because this structure includes one layer of empty Copper Foil, one layer of empty aluminium foil, two-layer barrier film, use
Area is big.Again, in particular cases without improvement result, owing to the fusing point of empty aluminium foil is relatively low, when battery core capacity is excessive, or battery core
During change in size, the fusing of sky aluminium foil can be made to cause the shunting action of MJ structure to disappear, in this case for MJ structure only
Its number of turns can be increased to improve action effect, thus cause the problem that previous cost improves and energy density reduces.
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, and it carries
The safety that high battery core uses, adds the energy density of battery core, reduces cost, and drift bolt is imitated when test for drift bolt
The best.
To achieve these goals, this utility model provides a kind of takeup type battery core, and it has two big faces and two
Side, including the first pole piece, the second pole piece and isolating membrane.
First pole piece includes: the first collector: and the first active material layer, it is coated on the surface of the first collector.
Second pole piece and the first pole piece electric polarity are contrary, including: the second collector；And second active material layer, it is coated in the second collection
On the surface of fluid.Isolating membrane is arranged between the second pole piece and the first pole piece.
At the winding ending of takeup type battery core, the most uncoated first active matter on positive and negative two surfaces of the first collector
Matter layer and be defined as the first blank collector, on positive and negative two surfaces of the second collector the most uncoated second active material layer and
It is defined as the second blank collector.
Wherein, the initial segment of the second blank collector is in inside the initial segment of the first blank collector, the second blank collection
The length of fluid is the length of blank collector more than first, and the part beyond the first blank collector of the second blank collector
Form the folding part of the second blank collector, at least in two big faces of folding part parcel takeup type battery core and two sides
Individual.
The beneficial effects of the utility model are as follows:
According in takeup type battery core of the present utility model, the initial segment of the second blank collector is in the first blank afflux
Inside the initial segment of body, owing to the second blank collector is longer than the first blank collector, and the second blank collector beyond the
At least one in two big faces of the portion envelops takeup type battery core of one blank collector and two sides, to such an extent as to second is empty
White collector ratio first blank collector many parcels at least one of which on this at least one face, and then when carrying out drift bolt test,
Second blank collector and the first blank collector can be short-circuited rapidly, and drift bolt is effective, improves the peace that battery core uses
Quan Xing.Additionally, at the winding ending of takeup type battery core of the present utility model, it is not necessary to by the first pole piece, the second pole piece and isolation
Film winds multi-turn simultaneously can realize good drift bolt effect, thus adds the energy density of battery core, reduces cost.
Accompanying drawing explanation
Fig. 1 is according to takeup type battery core of the present utility model winding schematic diagram in one embodiment；
Fig. 2 is according to takeup type battery core of the present utility model winding schematic diagram in another embodiment；
Fig. 3 is the deformation pattern of Fig. 2；
Fig. 4 is the deformation pattern of Fig. 1；
Fig. 5 is the another deformation pattern of Fig. 1.
Wherein, description of reference numerals is as follows:
The initial segment of the 1 first blank collector of pole piece S21 second
11 first collector S22 folding parts
12 first active material layer S221 folding lines
Blank collector 3 isolating membrane of S1 first
The initial segment 31 Article 1 isolating membrane of the blank collector of S11 first
The ending end of 2 second pole piece B1 Article 1 isolating membrane
21 second collector 32 Article 2 isolating membrane
The ending end of 22 second active material layer B2 Article 2 isolating membrane
Blank collector 4 fixing glue of S2 second
Detailed description of the invention
Describe in detail with reference to the accompanying drawings according to takeup type battery core of the present utility model.
Referring to figs. 1 through Fig. 5, having two big faces and two sides according to takeup type battery core of the present utility model, it includes
First pole piece the 1, second pole piece 2 and isolating membrane 3.
First pole piece 1 includes: the first collector 11: and the first active material layer 12, it is coated in the first collector 11
On surface.Second pole piece 2 is contrary with the first pole piece 1 electric polarity, including: the second collector 21；And second active material layer 22,
It is coated on the surface of the second collector 11.Isolating membrane 3 is arranged between the second pole piece 2 and the first pole piece 1.
At the winding ending of takeup type battery core, the most uncoated first activity on positive and negative two surfaces of the first collector 11
Material layer 12 and be defined as the first blank collector S1, the most uncoated second activity on positive and negative two surfaces of the second collector 21
Material layer 22 and be defined as the second blank collector S2.
Wherein, the initial segment S21 of the second blank collector is in inside the initial segment S11 of the first blank collector, and second
The length of blank collector S2 is the length of blank collector S1 more than first, and the second blank collector S2's is blank beyond first
Two of folding part S22, the folding part S22 parcel takeup type battery core that the part of collector S1 forms the second blank collector S2 big
At least one in face and two sides.
According in takeup type battery core of the present utility model, it is blank that the initial segment S21 of the second blank collector is in first
Inside the initial segment S11 of collector, owing to the second blank collector S2 is longer than the first blank collector S1, and the second blank afflux
Partially folded, in two big faces of parcel takeup type battery core and two sides extremely beyond the first blank collector S1 of body S2
Few one, to such an extent as to the second blank collector S2 on this at least one face than the first blank many parcels at least of collector S1
Layer, and then when carrying out drift bolt test, the second blank collector S1 of blank collector S2 and first can be short-circuited rapidly, by
In many blank collectors of parcel at least one of which first, it is possible to prevent wherein one layer of blank collector fusing during short circuit, thus
Causing short-circuit failure, drift bolt is effective, improves the safety that battery core uses.Additionally, in takeup type battery core of the present utility model
Winding ending at, it is not necessary to first pole piece the 1, second pole piece 2 and isolating membrane 3 are wound multi-turn simultaneously and can realize good drift bolt
Effect, thus add the energy density of battery core, reduce cost.
According to takeup type battery core of the present utility model, in one embodiment, referring to figs. 1 through Fig. 5, isolating membrane 3 includes: first
Bar isolating membrane 31；And Article 2 isolating membrane 32.
In one embodiment, Article 1 isolating membrane 31 and Article 2 isolating membrane 32 can be interconnected together is one.
In one embodiment, Article 1 isolating membrane 31 and Article 2 isolating membrane 32 can be two separated.
In one embodiment, for anode pole piece, the second pole piece 2 is cathode pole piece to the first pole piece 1, and the first collector 11 is
Plus plate current-collecting body and the second collector 21 is negative current collector, the first active material layer 12 second is lived for positive electrode active material layer
Property material layer 22 is negative electrode active material layer.Or for cathode pole piece, the second pole piece 2 is anode pole piece to the first pole piece 1, first
For negative current collector, the second collector 21 is plus plate current-collecting body to collector 11, and the first active material layer 12 is negative electrode active material
Layer and the second active material layer 22 is positive electrode active material layer.
According to takeup type battery core of the present utility model, in one embodiment, with reference to Fig. 2 and Fig. 3, the second blank collector S2
The part beyond the first blank collector S1 there is the folding part of folding line S221 to takeup type battery core internal bend formation
S22, and folding part S22 is between Article 1 isolating membrane 31 and Article 2 isolating membrane 32 and wraps up at least the one of takeup type battery core
Individual big face.Specifically, folding part S22 can be between Article 1 isolating membrane 31 and the second blank collector S2 (as shown in Figure 2),
Folding part S22 can also be between Article 2 isolating membrane 32 and the second blank collector S2 (as shown in Figure 3).
In one embodiment, with reference to Fig. 2 and Fig. 3, folding line S221 less than the ending end B1 and the of Article 1 isolating membrane
Article two, the ending end B2 of isolating membrane.So purpose of winding is in order to avoid the folding line S221 of the second blank collector S2 exposes
Outside Article 1 isolating membrane 31 and Article 2 isolating membrane 32, thus prevent the second blank collector of blank collector S2 and first
S1 contacts, and then avoids both positive and negative polarity short circuit, contributes to protecting the use safety of takeup type battery core.
According to takeup type battery core of the present utility model, in one embodiment, with reference to Fig. 1, Fig. 4 and Fig. 5, Article 2 isolating membrane
32 beyond the first blank collector S1 part along takeup type battery core coiling direction be reversely bent to the first blank afflux
The outside of body S1, correspondingly, the part beyond the first blank collector S1 of the second blank collector S2 is along takeup type battery core
The outside being reversely bent to Article 2 isolating membrane 32 of coiling direction formation have the folding part S22 of folding line S221, and fold
At least one big of portion S22 parcel takeup type battery core.
Here remark additionally, when the coiling direction of takeup type battery core is clockwise, Article 2 isolating membrane 32
Beyond the part of the first blank collector S1 and the second blank collector S2 beyond the Partial Inverse of the first blank collector S1 time
Pin (coiling direction of wound battery core reverse) bends；When the coiling direction of takeup type battery core is counterclockwise, Article 2 is isolated
The part beyond the first blank collector S1 of film 32 and the portion beyond the first blank collector S1 of the second blank collector S2
Divide (coiling direction of wound battery core reverse) bending clockwise.
In one embodiment, with reference to Fig. 1 and Fig. 4, the end of Article 2 isolating membrane 32 is beyond the second blank collector S2's
The end of folding part S22.So purpose of winding is in order to avoid the second blank collector S1 of blank collector S2 and first connects
Touch, thus avoid both positive and negative polarity short circuit, contribute to protecting the use safety of takeup type battery core.
In one embodiment, one of them big that takeup type battery core can be wrapped up with reference to Fig. 1, folding part S22.
In one embodiment, two big faces of folding part S22 parcel takeup type battery core.
In one embodiment, with reference to two big faces and two sides of Fig. 4, folding part S22 parcel takeup type battery core, thus
Realize the omnibearing parcel of takeup type battery core, strengthen the adaptability that the drift bolt to not coplanar is tested.
In one embodiment, the folding line S221 of folding part S22 can be one or more.
In one embodiment, with reference to Fig. 5, when the folding line S221 of folding part S22 is two or more, folding part
The shape of S22 can be " Z " shape.Now can greatly strengthen the takeup type battery core residing for two or more folding lines S221
The thermal diffusivity of surface (in Figure 5 for being in the big face of top) folding part S22 when drift bolt, increase folding part S22 simultaneously
Thickness and intensity, reduce fusing risk, improve drift bolt test reliability.
In one embodiment, the end Pasting referring to figs. 1 through Fig. 5, folding part S22 has fixing glue 4.Here add
Bright, pasting fixing glue 4 is for the end of fixed fold portion S11.And in figs. 2 and 3, fixing glue 4 can also play
Prevent folding part S22 from piercing through Article 1 isolating membrane 31 (corresponding diagram 3) or the purpose of Article 2 isolating membrane 32 (corresponding diagram 2), in order to
Reach this purpose, also fixing glue 4 can be pasted onto on the surface of Article 1 isolating membrane 31 corresponding to the end of folding part S22
In (corresponding diagram 3) or the surface of Article 2 isolating membrane 32 (corresponding diagram 2).
In one embodiment, with reference to Fig. 1, Fig. 4 and Fig. 5, at the folding line S221 of folding part S22, it is pasted with fixing glue 4, first
The end of blank collector S1 is also pasted with fixing glue 4.Here remarking additionally, fixing glue 4 is pasted onto at folding line S221
It is to fix folding line S111, and the end being pasted onto the first blank collector S1 is to prevent the first blank collector S1 thorn
Wear isolating membrane 3 directly to contact with the second blank collector S2.
In one embodiment, fixing glue 4 can be green glue.
In one embodiment, the material of isolating membrane 3 can be polypropylene or polyethylene.
In one embodiment, plus plate current-collecting body can be aluminium foil, and negative current collector can be Copper Foil.
In one embodiment, the negative electrode active material in negative electrode active material layer is selected from Delanium, native graphite, nothing
One or more in setting carbon, hard charcoal.
In one embodiment, the positive active material in the active material layer of positive pole pole is selected from cobalt acid lithium, LiMn2O4, ternary
One or more in material, LiFePO 4.
Claims (10)
1. a takeup type battery core, has two big faces and two sides, including；
First pole piece (1), including:
First collector (11)；And
First active material layer (12), is coated on the surface of the first collector (11)；
Second pole piece (2), contrary with the first pole piece (1) electric polarity, including:
Second collector (21)；And
Second active material layer (22), is coated on the surface of the second collector (11)；
Isolating membrane (3), is arranged between the second pole piece (2) and the first pole piece (1)；
At the winding ending of takeup type battery core, the most uncoated first active matter on positive and negative two surfaces of the first collector (11)
Matter layer (12) and be defined as the first blank collector (S1), on positive and negative two surfaces of the second collector (21) the most uncoated second
Active material layer (22) and be defined as the second blank collector (S2)；
It is characterized in that,
The initial segment (S21) of the second blank collector is in the initial segment (S11) inner side of the first blank collector；
The length of the second blank collector (S2) is the length of blank collector (S1) more than first, and the second blank collector (S2)
The part beyond the first blank collector (S1) form the folding part (S22) of the second blank collector (S2), folding part (S22)
At least one in two big faces of parcel takeup type battery core and two sides.
Takeup type battery core the most according to claim 1, it is characterised in that isolating membrane (3) including:
Article 1, isolating membrane (31)；And
Article 2 isolating membrane (32).
Takeup type battery core the most according to claim 1, it is characterised in that the first pole piece (1) is anode pole piece and the second pole
Sheet (2) is cathode pole piece, and the first collector (11) is plus plate current-collecting body and the second collector (21) is negative current collector, and first lives
Property material layer (12) is positive electrode active material layer and the second active material layer (22) is negative electrode active material layer；Or
First pole piece (1) is cathode pole piece and the second pole piece (2) is anode pole piece, the first collector (11) be negative current collector and
Second collector (21) is plus plate current-collecting body, and the first active material layer (12) is negative electrode active material layer and the second active material layer
(22) it is positive electrode active material layer.
Takeup type battery core the most according to claim 2, it is characterised in that the second blank collector (S2) empty beyond first
The part of white collector (S1) has the folding part (S22) of folding line (S221), and folding to takeup type battery core internal bend formation
Folded portion (S22) is between Article 1 isolating membrane (31) and Article 2 isolating membrane (32) and wraps up at least one of takeup type battery core
Big face.
Takeup type battery core the most according to claim 4, it is characterised in that
Folding line (S221) is less than ending end (B1) and the ending end (B2) of Article 2 isolating membrane of Article 1 isolating membrane.
Takeup type battery core the most according to claim 2, it is characterised in that
The part beyond the first blank collector (S1) of Article 2 isolating membrane (32) is along coiling direction anti-of takeup type battery core
To the outside being bent to the first blank collector (S1)；
The part beyond the first blank collector (S1) of the second blank collector (S2) is along the coiling direction of takeup type battery core
Reversely it is bent to the outside of Article 2 isolating membrane (32) and forms the folding part (S22) with folding line (S221), and folding part
(S22) wrap up takeup type battery core at least one big.
Takeup type battery core the most according to claim 6, it is characterised in that
One of them big of folding part (S22) parcel takeup type battery core；Or
Two big faces of folding part (S22) parcel takeup type battery core.
Takeup type battery core the most according to claim 6, it is characterised in that the folding line (S221) of folding part (S22) is one
Or it is multiple.
Takeup type battery core the most according to claim 1, it is characterised in that
The end of folding part (S22) is pasted with fixing glue (4)；
Folding line (S221) place of folding part (S22) is pasted with fixing glue (4).
Takeup type battery core the most according to claim 3, it is characterised in that plus plate current-collecting body is aluminium foil, negative current collector is
Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620661316.XU CN205723828U (en) | 2016-06-28 | 2016-06-28 | Takeup type battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620661316.XU CN205723828U (en) | 2016-06-28 | 2016-06-28 | Takeup type battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723828U true CN205723828U (en) | 2016-11-23 |
Family
ID=57317977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620661316.XU Withdrawn - After Issue CN205723828U (en) | 2016-06-28 | 2016-06-28 | Takeup type battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205723828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546421A (en) * | 2016-06-28 | 2018-01-05 | 宁德新能源科技有限公司 | Takeup type battery core |
| CN108206302A (en) * | 2017-12-25 | 2018-06-26 | 惠州市豪鹏科技有限公司 | A kind of lithium ion battery winds structure |
| CN109585928A (en) * | 2017-09-29 | 2019-04-05 | 比亚迪股份有限公司 | Battery core and battery with it |
-
2016
- 2016-06-28 CN CN201620661316.XU patent/CN205723828U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546421A (en) * | 2016-06-28 | 2018-01-05 | 宁德新能源科技有限公司 | Takeup type battery core |
| CN107546421B (en) * | 2016-06-28 | 2024-04-05 | 宁德新能源科技有限公司 | Winding type battery cell |
| CN109585928A (en) * | 2017-09-29 | 2019-04-05 | 比亚迪股份有限公司 | Battery core and battery with it |
| CN108206302A (en) * | 2017-12-25 | 2018-06-26 | 惠州市豪鹏科技有限公司 | A kind of lithium ion battery winds structure |
| CN108206302B (en) * | 2017-12-25 | 2020-08-25 | 惠州市豪鹏科技有限公司 | Lithium ion battery winding structure |
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| Date | Code | Title | Description |
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Granted publication date: 20161123 Effective date of abandoning: 20240405 |
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| AV01 | Patent right actively abandoned |