CN206116542U - A electric core and lithium ion battery for lithium ion battery - Google Patents
A electric core and lithium ion battery for lithium ion battery Download PDFInfo
- Publication number
- CN206116542U CN206116542U CN201621211919.6U CN201621211919U CN206116542U CN 206116542 U CN206116542 U CN 206116542U CN 201621211919 U CN201621211919 U CN 201621211919U CN 206116542 U CN206116542 U CN 206116542U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- ear
- negative
- positive pole
- 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.)
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- 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
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Abstract
The utility model provides a lithium ion battery's electric core level lithium ion battery, wherein, lithium ion battery includes the casing and sets up the electric core in the casing, the electricity core includes positive plate, anodal utmost point ear, negative pole piece, negative pole utmost point ear and diaphragm, positive plate, diaphragm and place after the post is coiled into to the negative pole piece in the casing, with the positive plate links to each other anodal utmost point ear is bipolar ear, with the negative pole piece links to each other anodal utmost point ear is bipolar ear equally. The utility model discloses the electric core described is through the design of bipolar ear to length, material through the two poles of the earth utmost point ear are selected to prescribe a limit to, and when making the improvement of electric core capacity, the internal resistance can not increased too much, guarantee that the lithium ion battery who has it has good rate properties.
Description
Technical field
This utility model is related to secondary rechargeable battery technical field, more particularly to a kind of battery core for lithium ion battery
And lithium ion battery.
Background technology
Lithium ion battery has high output voltage, energy density, high cycle life, it has also become most have development potentiality
Electrokinetic cell.Release after 18650 type cylindrical lithium ion batteries, through the development of more than 20 years from Sony's nineties in last century, 18650
The maturation that type cylindrical lithium ion battery processing technology has compared.The monomer capacity of 18650 type cylindrical lithium ion batteries is generally
1500-3000mAh, is applied to the fields such as balance car, electric tool.18650 type lithium ion battery of monomer is used for into electric automobile
Field, cell usage quantity are big, and battery management is difficult.To improve the capacity of cell, can suitably increase cylindrical shell
Volume, then the diameter of core can also be accordingly increased, the increase of core coil core diameter, if still using original lug weldering
Mode is connect, the internal resistance of battery can rise in certain degree, in order to ensure the internal resistance of battery, it is ensured that the high rate performance of battery,
In addition to the housing design to cylindrical battery, also it is necessary further to design battery core.
Utility model content
A purpose of the present utility model is to provide for a kind of battery core for lithium ion battery, and which ensure that raising is single
While body lithium battery capacity, the increase of the internal resistance of cell is prevented.
This utility model one further objective is that and will cause the lithium ion battery with above-mentioned battery core with forthright again
Can, improve the performance of lithium ion battery.
Especially, this utility model provide a kind of battery core for lithium ion battery, lithium ion battery include housing and
The battery core being arranged in housing, the battery core include positive plate, positive pole ear, negative plate, negative lug and barrier film, the positive pole
Piece, barrier film and negative plate are placed on after being wound into post in the housing, and the positive pole ear being connected with the positive plate is double
Lug, the positive pole ear being connected with the negative plate are similarly Double-pole lug.
For above-mentioned technical proposal, inventor also has further optimal enforcement scheme.
Preferably, the positive pole ear includes being separately positioned on the first positive pole pole that the anode pole piece both sides are left white part
The exposed parts of ear and the second positive pole ear, first positive pole ear and second positive pole ear and the embedment positive pole pole
The equal length of the part of piece.
Further, the total length of the total length and the second positive pole ear of first positive pole ear is equal.
Further, the positive pole ear is made using aluminium strip.
Preferably, the negative lug includes that the two ends for being separately positioned on the cathode pole piece are left white the first negative pole of part
The exposed parts of lug and the second negative lug, first negative lug and second negative lug and the embedment negative pole
The equal length of the part of pole piece, the exposed parts of second negative lug are more than the length of the part of the embedment cathode pole piece
Degree.
Further, total length of the total length of second negative lug more than the first negative lug.
Further, the negative lug is made using nickel strap.
Further purpose is to provide a kind of lithium ion battery to this utility model, including housing, is arranged in the housing
Battery core and the block being arranged on above the housing, the battery core adopt battery core as previously described.
Further, the periphery edge in the block has a circle sealing ring.
Further, the material of the sealing ring is the one kind in natural rubber, silicone rubber or EP rubbers.
Design of the battery battery core of the present utility model by Double-pole lug, and selected by the length of the two poles of the earth lug, material
Select restriction so that while the raising of battery core capacity, internal resistance will not be increased excessively, it is ensured that the lithium ion battery with which has good
Good high rate performance.
According to the detailed description below in conjunction with accompanying drawing to this utility model specific embodiment, those skilled in the art will be more
Plus understand of the present utility model above-mentioned and other purposes, advantages and features.
Description of the drawings
Describe some concrete realities of the present utility model hereinafter with reference to the accompanying drawings by way of example, and not by way of limitation in detail
Apply example.In accompanying drawing, identical reference denotes same or similar part or part.It should be appreciated by those skilled in the art that
What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the structural representation of the lithium ion battery according to this utility model one embodiment；
Fig. 2 is the structural representation of the anode pole piece according to this utility model one embodiment and positive pole ear；
Fig. 3 is the structural representation of the cathode pole piece according to this utility model one embodiment and negative lug；
Fig. 4 is the structural representation of the lithium ion battery cover according to this utility model one embodiment.
Wherein：
1st, housing；2nd, battery core；3rd, block；4th, slot rolling；5th, the first positive pole ear；6th, the second positive pole ear；7th, the first negative pole
Lug；8th, the second negative lug；9th, sealing ring；10th, insulating trip.
Specific embodiment
Fig. 1 is the structural representation of the lithium ion battery according to this utility model embodiment；Fig. 2 is according to this utility model
The anode pole piece of embodiment and the structural representation of positive pole ear；Fig. 3 be according to the cathode pole piece of this utility model embodiment with
The structural representation of negative lug；Fig. 4 is the structural representation of the lithium ion battery cover according to this utility model embodiment.
As shown in figure 1, present embodiment describes a kind of lithium ion battery, including cylinder housing 1, be arranged on the shell
Battery core 2 and the block 3 being arranged on above the housing 1 in body 1, including positive plate, positive pole ear, negative plate, negative pole pole
Ear and barrier film, the positive plate, barrier film and negative plate are placed on after being wound into post in the housing 1, are connected with the positive plate
The positive pole ear be Double-pole lug, the positive pole ear being connected with the negative plate is similarly Double-pole lug.Again by two just
Pole lug is welded in block 3 jointly, used as the positive pole of battery；Described two negative lugs are welded on the bottom of box hat as lithium
The negative pole of ion battery.
The housing 1 is cylinder, and its upper end is opening, first by the positive/negative plate of the battery according to said structure shape
Formula carries out positive and negative tab welding, then positive plate, barrier film, the negative plate Cheng Zhu after winding, and on pad, upper and lower insulating trip 10, inserts
In housing 1.1 inside slot rolling of housing 4 forms groove.The upper insulating trip 10 is located at the lower section of slot rolling 4, the lower insulating trip 10
In shell bottom.
As shown in Fig. 2 the positive pole ear includes being separately positioned on the anode pole piece both sides is just being left white the first of part
The exposed parts of pole lug 5 and the second positive pole ear 6, first positive pole ear 5 and second positive pole ear 6 and embedment institute
State the equal length of the part of anode pole piece.The total length phase of the total length of first positive pole ear 5 and the second positive pole ear 6
Deng.
Further, the positive pole ear is made using aluminium strip.
As shown in figure 3, the negative lug includes that the two ends for being separately positioned on the cathode pole piece are left white the first of part
The exposed parts of negative lug 7 and the second negative lug 8, first negative lug 7 and second negative lug 8 and embedment
The equal length of the part of the cathode pole piece, the exposed parts of second negative lug 8 are more than the embedment cathode pole piece
Part length.Total length of the total length of second negative lug 8 more than the first negative lug 7.
Further, the negative lug is made using nickel strap.
As shown in figure 4, the periphery edge in the block 3 has a circle sealing ring 9.The material of the sealing ring 9 is natural
One kind in rubber, silicone rubber or EP rubbers.No leakage when flexible rubber seal 9 is able to ensure that sealing, plays double again
The effect of layer insulation ensures battery security and stability
Design of the battery core described by the present embodiment by Double-pole lug, and selected by the length of the two poles of the earth lug, material
Select restriction so that while the raising of battery core capacity, internal resistance will not be increased excessively, it is ensured that the lithium ion battery with which has good
Good high rate performance.
So far, although those skilled in the art will appreciate that herein it is detailed illustrate and describe it is of the present utility model many
Individual exemplary embodiment, but, in the case of without departing from this utility model spirit and scope, still can be public according to this utility model
The content opened directly determines or derives many other variations or modifications for meeting this utility model principle.Therefore, this practicality is new
The scope of type is understood that and regards as covering all these other variations or modifications.
Claims (10)
1. a kind of battery core for lithium ion battery, lithium ion battery include housing and the battery core being arranged in housing, its feature
It is that the battery core includes positive plate, positive pole ear, negative plate, negative lug and barrier film, the positive plate, barrier film and negative pole
Piece is placed on after being wound into post in the housing, and the positive pole ear being connected with the positive plate is Double-pole lug, negative with described
The positive pole ear that pole piece is connected is similarly Double-pole lug.
2. the battery core for lithium ion battery according to claim 1, it is characterised in that the positive pole ear includes difference
Be arranged on the first positive pole ear and the second positive pole ear that the anode pole piece both sides are left white part, first positive pole ear and
The equal length of the part of the exposed parts and the embedment anode pole piece of second positive pole ear.
3. the battery core for lithium ion battery according to claim 2, it is characterised in that first positive pole ear it is total
The total length of length and the second positive pole ear is equal.
4. the battery core for lithium ion battery according to any one of claim 1 to 3, it is characterised in that the positive pole
Lug is made using aluminium strip.
5. the battery core for lithium ion battery according to claim 1, it is characterised in that the negative lug includes difference
The two ends for being arranged on the cathode pole piece are left white first negative lug and the second negative lug of part, first negative lug
With the exposed parts of second negative lug and the equal length of the part of the embedment cathode pole piece, the second negative pole pole
Length of the exposed parts of ear more than the part of the embedment cathode pole piece.
6. the battery core for lithium ion battery according to claim 5, it is characterised in that second negative lug it is total
Total length of the length more than the first negative lug.
7. the battery core for lithium ion battery according to claim 5 or 6, it is characterised in that the negative lug is adopted
Nickel strap is made.
8. a kind of lithium ion battery, including housing, the battery core being arranged in the housing and it is arranged on above the housing
Block, it is characterised in that the battery core is using the battery core as described in claim 1 to 7.
9. lithium ion battery according to claim 8, it is characterised in that have a circle to seal in the periphery edge of the block
Circle.
10. lithium ion battery according to claim 9, it is characterised in that the material of the sealing ring is natural rubber, silicon
One kind in rubber or EP rubbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211919.6U CN206116542U (en) | 2016-11-10 | 2016-11-10 | A electric core and lithium ion battery for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211919.6U CN206116542U (en) | 2016-11-10 | 2016-11-10 | A electric core and lithium ion battery for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116542U true CN206116542U (en) | 2017-04-19 |
Family
ID=58526436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211919.6U Expired - Fee Related CN206116542U (en) | 2016-11-10 | 2016-11-10 | A electric core and lithium ion battery for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729446A (en) * | 2019-09-27 | 2020-01-24 | 惠州市众鑫达科技有限公司 | Polymer soft-package single-end tab cylindrical battery and manufacturing process thereof |
| CN111106302A (en) * | 2019-11-25 | 2020-05-05 | 深圳市卓能新能源股份有限公司 | Cylindrical lithium ion battery and preparation method thereof |
-
2016
- 2016-11-10 CN CN201621211919.6U patent/CN206116542U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729446A (en) * | 2019-09-27 | 2020-01-24 | 惠州市众鑫达科技有限公司 | Polymer soft-package single-end tab cylindrical battery and manufacturing process thereof |
| CN111106302A (en) * | 2019-11-25 | 2020-05-05 | 深圳市卓能新能源股份有限公司 | Cylindrical lithium ion battery and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170419 Termination date: 20181110 |