CN205543095U - Thin slice lithium ion battery - Google Patents
Thin slice lithium ion battery Download PDFInfo
- Publication number
- CN205543095U CN205543095U CN201620325075.1U CN201620325075U CN205543095U CN 205543095 U CN205543095 U CN 205543095U CN 201620325075 U CN201620325075 U CN 201620325075U CN 205543095 U CN205543095 U CN 205543095U
- Authority
- CN
- China
- Prior art keywords
- negative pole
- pole
- positive pole
- battery
- lithium ion
- 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.)
- Expired - Fee Related
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
- Primary Cells (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a thin slice lithium ion battery, is including anodal, negative pole and locate diaphragm between the two, the reaction was not participated in to the negative pole the part active material that does not coat, and the part of not participating in the reaction is scribbled polymer insulating and is glued, and the thickness of gluing is less than the deposited active material's of negative pole single face institute thickness. The utility model discloses a some of one side or one side of not participating in the reaction at the negative pole is scribbled polymer insulating and is glued, effectively utilizes the space of battery, promotes the capacity and the specific energy of battery, also avoid the waste of not participating in the partial active material that coats of reaction, reduced the battery cost, if anything is not scribbled to this part, because the tension of pole piece both sides is different, often curls easily when rolling and warp, follow -up being difficult to is processed, curling deformation in the time of can effectively avoiding the pole piece to roll through the mode of scribbling the insulating cement to its thickness and weight all are lighter than deposited active material, neither can disturb the performance of battery, still are favorable to the security of battery, the battery requirement of satisfied preparation that can be fine.
Description
Technical field
This utility model belongs to electrical storage device field, especially relates to a kind of thin slice lithium ion battery.
Background technology
Along with the miniaturization of electronic product, battery used is more and more thinner, in such as some intelligent cards
Lithium ion battery the thinnest, existing Thin film cell is usually by negative pole, positive pole, negative pole the most successively
The laminated structure arranged, and the two sides of the conductive base of negative pole is coated with active material, like this two
The active material of the outermost surface of individual negative pole is just not involved in reaction, exists and takies battery space and waste material
Problem, but if negative pole be one side coating active material, arise that volume when electrode rolls
Bent phenomenon, can bring a lot of trouble, the most how design one and neither waste material following process,
The Thin film cell that will not crimp again when electrode rolls becomes the problem of those skilled in the art's research.
Utility model content
In view of this, this utility model is directed to one and can reduce and take up room, and does not the most waste former material
Material, will not crimp again when electrode rolls simultaneously, facilitate the thin slice lithium ion battery of following process.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of thin slice lithium ion battery, including positive pole, negative pole be located at barrier film between the two, described negative
Pole be not involved in reaction part be not coated by active substance, described in be not involved in reaction part be coated with polymer insulation
Glue, the thickness of described glue is less than the thickness of the active substance coated by described negative pole one side.
The thickness of described glue is 2-50 micron.
Described battery include a piece of by two folding lines by the negative pole of its trisection, and the positive pole of a piece of doubling,
The part of said two folding line both sides all to mid portion the same face fold, a side of described positive pole and
One side alignment of negative pole, aligns at folding line, and another side of positive pole inserts another folding of described negative pole
In the space that place is formed after folding, between described positive pole and described negative pole, it is provided with barrier film, described negative pole
A topcoating polymer insulation glue discontiguous with described positive pole.
Described battery includes a piece of negative pole and the positive pole of a piece of doubling, and it is described right that one end of described negative pole is inserted
Inside the positive pole of folding, remainder encases the outside of the positive pole of described doubling, described positive pole and described
Barrier film, described negative pole and the discontiguous topcoating polymer insulation glue of described positive pole it is provided with between negative pole.
Described battery includes a piece of positive pole and a piece of negative pole, described positive pole, described barrier film and described negative pole by
Aliging the most successively, after winding, the outermost of negative pole scribbles polymer insulation without the one side of corresponding positive pole
Glue.
Described battery includes positive pole and the negative pole of multi-disc formed objects of multi-disc formed objects, described negative pole,
Described barrier film and described positive pole align lamination successively, after lamination upper and lower ragged edge both sides be negative pole and negative pole
Outside scribbles polymer insulation glue without the one side of corresponding positive pole.
Relative to prior art, Thin film cell described in the utility model has the advantage that
It is exhausted that a part for this utility model one side or one side by being not involved in reaction at negative pole is coated with macromolecule
Edge glue, effectively utilizes the space of battery, promotes capacity and the specific energy of battery；It also avoid and be not involved in instead
Should partly coat the waste of active material, reduce battery cost；If this part is not coated with anything,
Owing to the tension force of pole piece both sides is different, tend to when rolling Texturized, follow-up be difficult to；Logical
Cross and be coated with the mode of insulating cement and can be prevented effectively from Texturized phenomenon when pole piece rolls, and its thickness and
Weight is respectively less than the active substance of coating, not only without interference with the performance of battery, also helps the peace of battery
Quan Xing, can well meet the battery request made.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is the structural representation of the battery of a kind of embodiment of this utility model；
Fig. 2 is the structural representation of the battery of this utility model another kind embodiment；
Fig. 3 is the structural representation of the battery of the third embodiment of this utility model.
Description of reference numerals:
1-positive conductive base material, 2-positive pole the first active material layer, 3-positive pole the second active material layer, 4-
Barrier film, 5-negative pole the first active material layer, 6-negative conductive base material, 7-negative pole the second active material layer,
8-glue.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment 1: as in figure 2 it is shown, a kind of thin slice lithium ion battery, described battery includes a piece of positive pole
With the negative pole of a piece of doubling, described positive pole is clipped in the middle of the negative pole of described doubling, described positive pole and described negative
Being provided with barrier film between pole, the two sides of described positive pole is coated with active material, and the inner side of described negative pole doubling is coated with
Covering active material, the outside of described negative pole doubling is coated with polymer insulation glue.
According to practical situation, the thickness of glue can accomplish that 2-50 micron is thick.Remaining operation is normal process steps.
Polymer insulation glue can be PVDF, CMC, SBR etc..
Embodiment 2: as it is shown on figure 3, a kind of thin slice lithium ion battery, described battery includes a piece of by two
Individual folding line is by the negative pole of its trisection, and the positive pole of a piece of doubling, and the part of said two folding line both sides is equal
Folding to the same face of mid portion, a side of described positive pole and a side alignment of negative pole, at folding line
Alignment, in the space that another side of positive pole is formed after inserting another burst folding of described negative pole, institute
State and between described positive pole and described negative pole, be provided with barrier film, described negative pole and the discontiguous topcoating of described positive pole
Polymer insulation glue.
According to practical situation, the thickness of glue can accomplish that 2-50 micron is thick.Remaining operation is normal process steps.
Polymer insulation glue can be PVDF, CMC, SBR etc..
Embodiment 3: a kind of thin slice lithium ion battery, described battery includes a piece of positive pole and a piece of negative pole,
Described positive pole, described barrier film and described negative pole align the most successively, after winding the outermost of negative pole without
The one side (as shown in Figure 1) of corresponding positive pole scribbles polymer insulation glue.
According to practical situation, the thickness of glue can accomplish that 2-50 micron is thick.Remaining operation is normal process steps.
Polymer insulation glue can be PVDF, CMC, SBR etc..
Embodiment 4: described battery includes positive pole and the negative pole of multi-disc formed objects of multi-disc formed objects,
Described negative pole, described barrier film and described positive pole align lamination successively, and after lamination, upper and lower ragged edge both sides are negative
Pole and negative pole outermost scribble polymer insulation glue without the one side of corresponding positive pole.The thickness of glue can be according to reality
Border situation accomplishes that 2-50 micron is thick.Remaining operation is normal process steps.Polymer insulation glue can be PVDF,
CMC, SBR etc..Not shown in figure.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made
Deng, within should be included in protection domain of the present utility model.
Claims (6)
1. a thin slice lithium ion battery, it is characterised in that: include positive pole, negative pole and be located at both it
Between barrier film, described negative pole be not involved in reaction part be not coated by active substance, described in be not involved in reaction
Part is coated with polymer insulation glue, and the thickness of described glue is less than the active substance coated by described negative pole one side
Thickness.
Thin slice lithium ion battery the most according to claim 1, it is characterised in that: the thickness of described glue
Degree is 2-50 micron.
Thin slice lithium ion battery the most according to claim 1 and 2, it is characterised in that: described electricity
Pond includes a piece of positive pole and the negative pole of a piece of doubling, and described positive pole is clipped in the middle of the negative pole of described doubling, institute
Stating and be provided with barrier film between positive pole and described negative pole, the two sides of described positive pole is coated with active material, described negative
The inner side coating active material of pole doubling, the outside of described negative pole doubling is coated with polymer insulation glue.
Thin slice lithium ion battery the most according to claim 1 or claim 2, it is characterised in that: described battery
Including a piece of by two folding lines by the negative pole of its trisection, and the positive pole of a piece of doubling, said two folding line
The part of both sides all folds to the same face of mid portion, a side of described positive pole and a side of negative pole
Alignment, aligns at folding line, and another burst of another side described negative pole of insertion of positive pole is formed after folding
Space in, be provided with barrier film between described positive pole and described negative pole, described negative pole is with described positive pole not
One topcoating polymer insulation glue of contact.
Thin slice lithium ion battery the most according to claim 1 or claim 2, it is characterised in that: described battery
Including a piece of positive pole and a piece of negative pole, described positive pole, described barrier film and described negative pole are the most right
Together, after winding, the outermost of negative pole scribbles polymer insulation glue without the one side of corresponding positive pole.
Thin slice lithium ion battery the most according to claim 1 or claim 2, it is characterised in that: described battery
Including positive pole and the negative pole of multi-disc formed objects of multi-disc formed objects, described negative pole, described barrier film and institute
State positive pole to align successively lamination, after lamination upper and lower ragged edge both sides be negative pole and negative pole outermost without correspondence just
The one side of pole scribbles polymer insulation glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620325075.1U CN205543095U (en) | 2016-04-15 | 2016-04-15 | Thin slice lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620325075.1U CN205543095U (en) | 2016-04-15 | 2016-04-15 | Thin slice lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205543095U true CN205543095U (en) | 2016-08-31 |
Family
ID=56792672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620325075.1U Expired - Fee Related CN205543095U (en) | 2016-04-15 | 2016-04-15 | Thin slice lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205543095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845969A (en) * | 2016-04-15 | 2016-08-10 | 辉能（天津）科技发展有限公司 | Slice lithium ion battery capable of effectively utilizing battery space |
-
2016
- 2016-04-15 CN CN201620325075.1U patent/CN205543095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845969A (en) * | 2016-04-15 | 2016-08-10 | 辉能（天津）科技发展有限公司 | Slice lithium ion battery capable of effectively utilizing battery space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW492213B (en) | Stacked electrochemical cell | |
| CN104681858B (en) | Ultrathin flexible lithium ion battery and preparation method thereof | |
| KR101637071B1 (en) | Electrode assembly having partly folded function and battery cell including the same | |
| CN107240671A (en) | Flexible electrode and flexible battery core | |
| CN106129480A (en) | A kind of preparation method of soft-package battery | |
| CN205543095U (en) | Thin slice lithium ion battery | |
| CN103579684A (en) | Lithium ion battery and battery core thereof | |
| CN212848488U (en) | Pole piece, battery and electronic device | |
| CN106505210A (en) | 3D foils, the preparation method and applications of the positive/negative plate containing the foil | |
| CN109326831A (en) | Core strueture, battery core manufacturing method and battery | |
| CN214956957U (en) | Battery with a battery cell | |
| CN105655534A (en) | Coiled primary lithium battery cathode structure | |
| CN207664142U (en) | Laminated lithium ion battery and its pole piece | |
| CN111640993A (en) | Negative electrode assembly for lithium metal battery, lithium metal battery prepared therefrom and related methods | |
| CN206992216U (en) | Flexible electrode and flexible battery core | |
| CN103579683A (en) | Lithium ion battery and battery core thereof | |
| CN108400274A (en) | A kind of battery with diaphragm bag making | |
| JP5293539B2 (en) | Electrode active material sheet with support and method for producing electrode for electrochemical device | |
| CN105845969A (en) | Slice lithium ion battery capable of effectively utilizing battery space | |
| CN106941150A (en) | Lithium ion battery plus-negative plate plate and preparation method, core and lithium ion battery | |
| CN205863313U (en) | A kind of takeup type battery core | |
| CN206379431U (en) | Takeup type pole group | |
| CN106571443A (en) | Battery pole piece rolling device and battery pole piece | |
| CN209461573U (en) | A kind of positive plate with tab and the polymer Li-ion battery containing the positive plate | |
| CN218039281U (en) | Negative plate and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |