CN205960106U - Bury utmost point ear formula pole piece and lithium ion battery - Google Patents
Bury utmost point ear formula pole piece and lithium ion battery Download PDFInfo
- Publication number
- CN205960106U CN205960106U CN201620989755.3U CN201620989755U CN205960106U CN 205960106 U CN205960106 U CN 205960106U CN 201620989755 U CN201620989755 U CN 201620989755U CN 205960106 U CN205960106 U CN 205960106U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- lug
- utmost point
- point ear
- bury
- 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.)
- Active
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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a bury utmost point ear formula pole piece, including pole piece and utmost point ear, the pole piece on remove to reserve blank foreign about the both sides face all coated extremely whitewashedly, the blank position of reservation in pole piece side edge and corresponding with utmost point ear size, utmost point ear welding be in the blank district of reservation. The utility model discloses a pole piece only stays local blank district of reservation and the welding utmost point ear that corresponds with utmost point ear size on the pole piece for pole piece cavity paper tinsel still less makes the energy density of battery improve to some extent, and the increase of the effective area of pole piece makes the thickness attenuate to some extent of battery, thereby makes the high energy density of preparation, high -performance future lithium ion battery of new generation open up new direction.
Description
Technical field
The present invention relates to technical field of lithium ion, more particularly to one kind bury lug formula pole piece and lithium ion battery.
Background technology
At present, lithium ion battery is divided into circular battery, square battery, polymer battery.In its pole group structure, lug is basic
On be all on the collector (Copper Foil or aluminium foil) of pole piece side.There is following defect in such structure：
1, there is no pole powder due to above the collector of welding electrode ear, belong to sky paper tinsel, the empty paper tinsel in battery pole piece structure is not due to having
Painting pole powder is had to reduce the energy density of battery.
2, the lug winding on the other hand, for polymer battery, on pole piece structure hollow paper tinsel and empty paper tinsel
In the inside of pole group, itself has an increased the thickness of whole pole group, then increased the thickness of battery, and polymer battery is for thickness
The requirement of degree is very strict, and the battery thickening has underproof risk.
Content of the invention
The purpose of the present invention is for technological deficiency present in prior art, and provides one kind to bury lug formula pole piece.
Be employed technical scheme comprise that by realizing the purpose of the present invention：
One kind buries lug formula pole piece, including pole piece and lug, on described pole piece in addition to reserved clear area upper and lower two sides
It is coated with pole powder, described reserved clear area is at described pole piece lateral edges and corresponding with lug size, described
Tab welding is in described reserved clear area.
It is correspondingly formed on before and after described reserved clear area on the two sides in front and back of pole piece.
It is covered with protection adhesive tape in described lug root to screen wherein in reserved clear area.
The width ratio lug width width 1-4mm of described coating clear area.
Described pole piece side is provided with multiple corresponding coating clear areas in front and back.
A kind of lithium ion battery, has and described buries lug formula pole piece.
Described lithium ion battery is stacked or takeup type.
Compared with prior art, the invention has the beneficial effects as follows：
The pole piece of the present invention local reserved clear area corresponding with lug size is only stayed on pole piece and soldering polar ear so that
Less so that the energy density of battery increases, the effective area of pole piece increases so that the thickness of battery has pole piece hollow paper tinsel
Institute is thinning, so that preparing high-energy-density, high performance future new era lithium ion battery has opened up new direction.
Brief description
Fig. 1 show the overlooking the structure diagram burying lug formula pole piece of the present invention；
Fig. 2 show the cross section structure schematic diagram shown in Fig. 1.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be appreciated that it is described herein
Specific embodiment only in order to explain the present invention, be not intended to limit the present invention.
As illustrated in fig. 1 and 2, the lug formula pole piece that buries of the present invention includes pole piece 1 and lug 3, described pole piece 1 removes reserved
Pole powder 2 is coated with all areas outside clear area, described reserved clear area be located at described pole piece one lateral edges and with pole
Ear 3 size is corresponding, and described tab welding is in described reserved clear area.The positive and negative of the pole piece at soldering polar ear simultaneously
Patch protection adhesive tape 4 is to prevent burr.The collector of described pole piece is aluminium foil or Copper Foil, and described pole powder is corresponding lithium ion
Battery coating material, this similarly to the prior art, the not reinflated description of concrete here.
Local clear area corresponding with lug size is only stayed on the pole piece of the present invention and soldering polar ear is so that pole piece hollow paper tinsel
It is less that so that the energy density of battery increases, the effective area of pole piece increases so that the thickness of battery is thinning, from
And so that preparing high-energy-density, high performance future new era lithium ion battery has opened up new direction.
Specifically, it is correspondingly formed on before and after described reserved clear area on the two sides in front and back of pole piece, certainly also may be used
To be provided with multipair corresponding reserved clear area in front and back to realize the design of multi pole ears pole piece in described pole piece side.Wherein, it is
It is easy to the welding of pole piece, described the width ratio lug width width 1-4mm coating clear area, such as 3mm.
Meanwhile, the invention also discloses a kind of lithium ion battery, its have described bury lug formula pole piece, wherein, described
Lithium ion battery be stacked or takeup type, concrete preparation method similarly to the prior art, the not reinflated description of here.New
Battery has 2% lifting compared with conventional batteries in energy density, on cell thickness 1% thinning, in internal resistance, multiplying power, low
Warm nature can be gone up and all increase.
The above is only the preferred embodiment of the present invention it is noted that common skill for the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (7)
1. one kind buries lug formula pole piece it is characterised in that including pole piece and lug, described pole piece removes reserved clear area outside upper
Lower two sides are coated with pole powder, and described reserved clear area is located at described pole piece lateral edges and relative with lug size
Should, described tab welding is in described reserved clear area.
2. bury lug formula pole piece as claimed in claim 1 it is characterised in that being correspondingly formed before and after described reserved clear area
On two sides before and after pole piece.
3. bury lug formula pole piece as claimed in claim 1 it is characterised in that being covered with protection adhesive tape in described lug root
To be screened wherein in reserved clear area.
4. bury lug formula pole piece as claimed in claim 1 it is characterised in that the width ratio lug width of described coating clear area
The wide 1-4mm of degree.
5. bury lug formula pole piece as claimed in claim 1 it is characterised in that described pole piece side be provided with multiple before and after
Corresponding coating clear area.
6. a kind of lithium ion battery buries lug formula pole piece it is characterised in that having as described in any one of claim 1-5.
7. lithium ion battery as claimed in claim 6 is it is characterised in that described lithium ion battery is stacked or winding
Formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989755.3U CN205960106U (en) | 2016-08-29 | 2016-08-29 | Bury utmost point ear formula pole piece and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989755.3U CN205960106U (en) | 2016-08-29 | 2016-08-29 | Bury utmost point ear formula pole piece and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205960106U true CN205960106U (en) | 2017-02-15 |
Family
ID=57978669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620989755.3U Active CN205960106U (en) | 2016-08-29 | 2016-08-29 | Bury utmost point ear formula pole piece and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205960106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159196A (en) * | 2016-08-29 | 2016-11-23 | 天津力神电池股份有限公司 | Bury lug formula pole piece and lithium ion battery |
-
2016
- 2016-08-29 CN CN201620989755.3U patent/CN205960106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159196A (en) * | 2016-08-29 | 2016-11-23 | 天津力神电池股份有限公司 | Bury lug formula pole piece and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206332097U (en) | A kind of secondary cell battery core | |
| CN106159196A (en) | Bury lug formula pole piece and lithium ion battery | |
| CN202373667U (en) | Electrical core of lithium ion battery and pole piece thereof | |
| CN205303580U (en) | Lithium ion battery pole piece and contain lithium ion battery of this pole piece | |
| CN207320232U (en) | A kind of lithium ion battery negative electrode and lithium ion battery | |
| CN206098526U (en) | Coiling formula secondary electricity core | |
| CN206834277U (en) | Takeup type battery core | |
| US20180342759A1 (en) | Lithium-ion battery cell and lithium-ion battery | |
| CN205542997U (en) | Polyvinylidene fluoride coating non -woven fabrics diaphragm paper polymer lithium ion secondary cell | |
| CN102428600B (en) | Laminated secondary battery, and method for manufacturing the laminated secondary battery | |
| CN105742721A (en) | High-energy-ratio low-internal-resistance cylindrical lithium ion battery | |
| CN108713271A (en) | Battery core and the battery for using this battery core | |
| CN106898823A (en) | A kind of preparation method of water storage type flexible packing lithium ion electric core and battery | |
| CN107369837A (en) | A kind of battery core pole piece and lithium ion battery cell | |
| US20190013550A1 (en) | Wound-type cell | |
| CN106129481A (en) | The preparation method of takeup type spill battery core and battery core | |
| CN109065839A (en) | A kind of full tab positive plate, winding battery core and preparation method thereof | |
| CN205429100U (en) | Lithium ion cell | |
| JP2019537210A5 (en) | ||
| CN203481318U (en) | Battery pole piece and high-power battery | |
| CN206379431U (en) | Takeup type pole group | |
| CN205960106U (en) | Bury utmost point ear formula pole piece and lithium ion battery | |
| CN206947451U (en) | A kind of stacked solid state battery | |
| CN103066321A (en) | High capacity and high rate type soft-package lithium iron phosphate battery | |
| CN113036076A (en) | Positive plate and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230206 Address after: 300000 No.38 Haitai South Road, Huayuan Industrial Zone (outside the ring), High-tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: 300384 Tianjin Xiqing District Binhai hi tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |