CN207409606U - It is easy to the Li-ion batteries piles of heat dissipation - Google Patents
It is easy to the Li-ion batteries piles of heat dissipation Download PDFInfo
- Publication number
- CN207409606U CN207409606U CN201721416671.1U CN201721416671U CN207409606U CN 207409606 U CN207409606 U CN 207409606U CN 201721416671 U CN201721416671 U CN 201721416671U CN 207409606 U CN207409606 U CN 207409606U
- Authority
- CN
- China
- Prior art keywords
- lug
- battery core
- lithium ion
- laminated battery
- pole piece
- 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)
- Secondary Cells (AREA)
Abstract
The utility model is related to field of lithium ion battery,Disclose a kind of Li-ion batteries piles for being easy to heat dissipation,Including multiple lithium ion laminated battery core bodies connected in parallel or in series,Each lithium ion laminated battery core body includes pole piece and membrane respectively,At least one first lug is respectively arranged on each pole piece,First lug of each pole piece is welded to connect and is connected with the electrode welding of the lithium ion laminated battery core body jointly,Each lithium ion laminated battery core body connects the composition battery pack in parallel or series by the electrode of each lithium ion laminated battery core body,At least one second lug is also reserved with respectively on each positive plate and/or each negative plate in the pole piece,Each second lug on same lithium ion laminated battery core body is welded to each other together,When each lithium ion laminated battery core body forms the battery pack,Second lug between each lithium ion laminated battery core body is mutually isolated and is respectively welded on a heat conductive insulating plate.
Description
Technical field
The utility model is related to lithium ion battery manufacturing field more particularly to a kind of Li-ion batteries piles for being easy to heat dissipation.
Background technology
Lithium ion battery is since operating voltage is high, power density and energy density are high, charge discharge life is long, memoryless effect
The advantages that answering, is pollution-free, the application on electric vehicle has good prospect.Temperature is to the various aspects of performance of lithium ion battery
All have an impact, working condition, cycle efficieny, capacity, power, security, reliability, uniformity and longevity including electro-chemical systems
Life etc., and then performance, reliability, security and service life for influencing whether electric vehicle etc..
Since each monomer lithium ion battery energy density is inconsistent, the heat in charge and discharge process is also inconsistent,
Therefore the charge-discharge performance of single battery is inconsistent, and then can influence the performance of entire battery pack.
Utility model content
The first purpose of the utility model embodiment is to provide a kind of Li-ion batteries piles for being easy to heat dissipation, using the skill
Art scheme is conducive to improve the thermal balance performance of Li-ion batteries piles.
The utility model embodiment provide it is a kind of be easy to heat dissipation Li-ion batteries piles, including it is multiple in parallel or in series
The lithium ion laminated battery core body of connection, each lithium ion laminated battery core body include pole piece and membrane, each pole piece respectively
On be respectively arranged at least one first lug, the first lug of each pole piece be welded to connect jointly and with the lithium ion
The electrode welding connection of laminated battery core, the electricity that each lithium ion laminated battery core body passes through each lithium ion laminated battery core body
Pole connects the composition battery pack in parallel or series, it is characterized in that,
At least one second lug is also reserved on each positive plate and/or each negative plate in the pole piece respectively, it is same
Each second lug on lithium ion laminated battery core body is welded to each other together, is formed in each lithium ion laminated battery core body
During the battery pack, second lug between each lithium ion laminated battery core body mutually isolates and is respectively welded at one
On heat conductive insulating plate.
Optionally, the heat conductive insulating plate is alumina ceramic plate.
Optionally, second lug is reserved with respectively on the positive plate in the pole piece.
Optionally, second lug is reserved with respectively on the negative plate in the pole piece.
Optionally, second lug is reserved with respectively on the positive plate and negative plate in the pole piece.
Therefore using the present embodiment technical solution, due to bent in the bent lithium ion battery of the present embodiment
The surface density of the active material of pole piece on position less than other can not bending part active material surface density or at this
Active material is not coated by bent position, therefore when user bends the bent position, which active matter is less likely to occur
Matter comes off, and advantageously reduces the short circuit ratio of battery using the present embodiment technical solution and improves the cycle performance of battery.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The improper restriction to the utility model is not formed.
Fig. 1 is pole piece structure schematic diagram provided in this embodiment；
Fig. 2 is the outline structural diagram using laminated battery core made of pole piece shown in Fig. 1；
Fig. 3 is the outline structural diagram of another laminated battery core provided in this embodiment；
Fig. 4 is the outline structural diagram of a Li-ion batteries piles provided in this embodiment.
101：First lug；102：Second lug；103：Heat conductive insulating plate.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing and specific embodiment, in the signal of this utility model
Property embodiment and explanation be used for explaining the utility model, but be not intended to limit the scope of the present invention.
Embodiment 1：
Present embodiments provide a kind of Li-ion batteries piles for the thermal balance degree for being conducive to improve battery pack, this lithium-ion electric
Pond group lithium ion laminated battery core body is formed, and the electrode of each lamination battery core bodies in battery pack connects in parallel or in series.
The present embodiment lithium ion laminated battery core body includes the pole piece being stacked (containing positive plate and negative plate) and membrane,
At least one first lug, the first lug of pole piece layer poststack are respectively arranged on every pole piece (containing positive plate and negative plate)
It is layered on top of each other, all first lugs that laminated battery core middle level is folded weld together jointly, and first will welded together
Lug is connected with the electrode welding in this battery core bodies.
I.e. on positive plate there are one or multiple first lugs, the first lug is anode ear at this time, and anode ear is welded on
It is welded to connect together and with the anode of laminated battery core, wherein the number of anode ear can be for one or 2 or more
It is a；On negative plate there are one or multiple first lugs, the first lug is negative electrode lug at this time, by negative pole lug welding together and with
The cathode of laminated battery core is welded to connect, and wherein the number of negative electrode lug can be for one or 2 or multiple.This implementation
The lug that example will be connected on pole piece with the electrode welding of laminated battery core, i.e. the present embodiment will have the pole being connected in technology with electrode
Earmark is the first lug.
The battery core bodies of the present embodiment laminated battery core and prior art institute is the difference is that be：It is shown in Figure 1, this
(either negative plate or positive plate and negative plate, the present embodiment is with positive plate for positive plate in the in vivo pole piece of laminated cell
Exemplified by) on be also reserved with another lug (being denoted as the second lug), after pole piece laminating, the second lug is layered on top of each other, in this lamination
The second lug being stacked in battery core bodies, which is welded to each other, to link together, and makes the second lug welded together from laminated battery core
Aluminum plastic film housing in extend, reserve as heat dissipation equalizer section, the external shape of laminated cell at this time is as shown in Figure 2.
It should be noted that Fig. 2 is on one of positive plate or negative plate exemplified by setting the second lug, this reality
The second lug can be set respectively on positive plate, negative plate respectively by applying example, structure such as Fig. 3 institutes of the laminated battery core obtained at this time
Show.In addition, the present embodiment using set beside the first lug of pole piece the second lug as signal, in practice can as needed by
Second lug is arranged on the opposite end of the first lug or is stretched out from the other positions of pole piece.
After by the prior art, each lamination battery core bodies are connected in series or in parallel according to predetermined combination, lead to
It crosses heat conductive insulating plate the second tab welding between each lamination battery core bodies links together, at this time second between each battery core bodies
Lug is mutually isolated.
If lamellar body trunk shown in Fig. 2 forms battery pack, then the second lug of each lamination battery core bodies is mutual
Face can be used an alumina ceramic plate and connects the second lug between each lamination battery core bodies at this time, battery at this time
Group shape is shown in Figure 4.
If lamellar body trunk shown in Fig. 3 forms battery pack, then the positive plate of each lamination battery core bodies is drawn
Second lug is facing each other, and the second lug that negative plate is drawn is also facing each other, and an alumina ceramic plate can be respectively adopted at this time
Second lug of the positive plate between each lamination battery core bodies is connected, using another alumina ceramic plate by each laminated cell
Second lug of the negative plate between body connects, and battery pack at this time is aerobic as shown in Figure 4 except the top in battery pack
Change outside aluminium ceramic wafer, the second lug being additionally provided in its bottom for cathode leads hot linked another alumina ceramic plate.
It is each in battery pack therefore due to being also reserved with the second pole piece in each lamination battery core bodies of the present embodiment
The second lug is also reserved on electrode slice, when forming battery pack, the heat of each pole piece inside each lamination battery core bodies passes through
The heat conductive insulating plate of two lugs connection conducts, and heat conductive insulating plate realizes heat conduction and do not influence the installation and connection of battery pack, and one
Aspect improves the heat dissipation performance of battery pack, on the other hand mitigates the heat differential even eliminated between each lamination battery core bodies monomer
It is different, the thermal balance performance in battery pack is improved, improves the electric property of battery pack, extends the service life.
The present embodiment battery pack has the characteristics that following and advantageous effect：
X1：Existing technology is mainly to be embodied in the heat dissipation of battery pack (multiple battery cores form a battery pack), is passed through
Air cooling radiates, and this technology is that thermal balance is carried out on the elementary cell pole piece of heat dissipation, and equilibrium heat dissipation is more complete；
X2：Extra lug size can meet the requirement of spot welding and not influence the group of battery core without what particular/special requirement
Dress, theoretically size is bigger, and heat dissipation effect is better；
X3:The material of heat conduction non-conducting, aluminium oxide ceramics simply one of selection；
X4：Advantage is mainly reflected in temperature, capacity and the capacity holding being recycled for a long time of battery pack heavy-current discharge
In rate.
Embodiments described above does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (5)
1. a kind of Li-ion batteries piles for being easy to heat dissipation, including multiple lithium ion laminated battery core bodies connected in parallel or in series,
Each lithium ion laminated battery core body includes pole piece and membrane respectively, and at least one first is respectively arranged on each pole piece
Lug, the first lug of each pole piece are welded to connect and connect with the electrode welding of the lithium ion laminated battery core body jointly
It connects, each lithium ion laminated battery core body connects composition institute in parallel or series by the electrode of each lithium ion laminated battery core body
Battery pack is stated, it is characterized in that,
Also be reserved at least one second lug on each positive plate and/or each negative plate in the pole piece respectively, same lithium from
Each second lug on sub- laminated battery core is welded to each other together, described in each lithium ion laminated battery core body composition
During battery pack, second lug between each lithium ion laminated battery core body mutually isolates and is respectively welded at a heat conduction
On insulation board.
2. the Li-ion batteries piles according to claim 1 for being easy to heat dissipation, it is characterized in that,
The heat conductive insulating plate is alumina ceramic plate.
3. the Li-ion batteries piles according to claim 1 for being easy to heat dissipation, it is characterized in that,
Second lug is reserved on positive plate in the pole piece respectively.
4. the Li-ion batteries piles according to claim 1 for being easy to heat dissipation, it is characterized in that,
Second lug is reserved on negative plate in the pole piece respectively.
5. the Li-ion batteries piles according to claim 1 for being easy to heat dissipation, it is characterized in that,
Second lug is reserved on positive plate and negative plate in the pole piece respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093486 | 2017-02-21 | ||
| CN2017100934861 | 2017-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409606U true CN207409606U (en) | 2018-05-25 |
Family
ID=62408629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416671.1U Active CN207409606U (en) | 2017-02-21 | 2017-10-27 | It is easy to the Li-ion batteries piles of heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409606U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888397A (en) * | 2019-02-26 | 2019-06-14 | 余姚天开能源技术有限公司 | A kind of thermal balance polymer lithium ion secondary battery |
| WO2020177635A1 (en) * | 2019-03-05 | 2020-09-10 | 苏州阿福机器人有限公司 | High-efficiency heat dissipation core structure of power storage device |
| CN111900511A (en) * | 2020-08-28 | 2020-11-06 | 傲普(上海)新能源有限公司 | Lithium ion battery radiating through pole piece |
| WO2022252165A1 (en) * | 2021-06-02 | 2022-12-08 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power-consuming apparatus, and apparatus and method for manufacturing battery cell |
-
2017
- 2017-10-27 CN CN201721416671.1U patent/CN207409606U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888397A (en) * | 2019-02-26 | 2019-06-14 | 余姚天开能源技术有限公司 | A kind of thermal balance polymer lithium ion secondary battery |
| WO2020177635A1 (en) * | 2019-03-05 | 2020-09-10 | 苏州阿福机器人有限公司 | High-efficiency heat dissipation core structure of power storage device |
| CN111900511A (en) * | 2020-08-28 | 2020-11-06 | 傲普(上海)新能源有限公司 | Lithium ion battery radiating through pole piece |
| WO2022252165A1 (en) * | 2021-06-02 | 2022-12-08 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, power-consuming apparatus, and apparatus and method for manufacturing battery cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207409606U (en) | It is easy to the Li-ion batteries piles of heat dissipation | |
| CN101589487B (en) | Lithium secondary battery | |
| CN209691893U (en) | Composite power energy storage battery core | |
| CN101867069A (en) | Power lithium-ion battery with heat dissipation performance | |
| CN209607862U (en) | A kind of High Efficiency Thermal budget metals case lithium ion secondary cell | |
| CN207909939U (en) | A kind of new structural aluminum hull battery core | |
| CN108321391B (en) | Graphene-based all-solid-state metal lithium battery and working method thereof | |
| CN212695281U (en) | Battery cell structure, battery and battery module | |
| WO2020207362A1 (en) | Energy storage device having bipolar conductive film connecting structure | |
| CN208767406U (en) | All-solid-state battery | |
| CN218160737U (en) | Full utmost point ear electricity core structure and lithium ion battery | |
| CN109244599B (en) | Composite negative pole piece with rapid heating function, and battery cell and battery adopting composite negative pole piece | |
| CN103346356B (en) | Lithium ion battery as well as preparation method thereof and lithium-ion battery pack | |
| CN109830770A (en) | Vast capacity energy storage lithium ion battery with monitoring function | |
| CN201408807Y (en) | Dual-lug winding-type lead-acid accumulator controlled by sealing valve | |
| CN209401735U (en) | Electrode assembly and secondary cell | |
| CN210325964U (en) | Battery module electricity core, battery and vehicle | |
| CN207676983U (en) | A kind of battery pack | |
| CN109244598B (en) | Composite positive pole piece with rapid heating function, and battery cell and battery adopting composite positive pole piece | |
| CN205543093U (en) | Even current distribution structure lithium ion battery group has | |
| CN206610857U (en) | A kind of novel lithium battery | |
| CN201008003Y (en) | High multiplying power lithium ion battery | |
| CN220710572U (en) | Battery, battery pack and vehicle | |
| CN221727255U (en) | Lithium battery, battery pack and energy storage product | |
| CN211556031U (en) | Battery cell and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |