CN208986074U - Soft bag lithium ionic cell and battery pack - Google Patents
Soft bag lithium ionic cell and battery pack Download PDFInfo
- Publication number
- CN208986074U CN208986074U CN201821716290.XU CN201821716290U CN208986074U CN 208986074 U CN208986074 U CN 208986074U CN 201821716290 U CN201821716290 U CN 201821716290U CN 208986074 U CN208986074 U CN 208986074U
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- CN
- China
- Prior art keywords
- soft bag
- lithium ionic
- bag lithium
- ionic cell
- shell
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- 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
Abstract
The utility model provides a kind of soft bag lithium ionic cell and battery pack, is related to the technical field of battery.The soft bag lithium ionic cell includes: shell and the top cover that case top is arranged in；The top cover is equipped with anode ear and negative electrode lug；The top cover is equipped with interface unit, and the interface unit is arranged between the anode ear and the negative electrode lug；The interface unit is connected with relief valve, and the relief valve is circle.It is existing in the prior art when inside battery has gas generation to alleviate, it is possible to can occur battery burst, leakage, even explode the technical issues of.
Description
Technical field
The utility model relates to battery technology fields, more particularly, to a kind of soft bag lithium ionic cell and battery pack.
Background technique
Lithium ion battery is because it has the characteristics that the high energy density, cycle life of length, environmentally friendly extensive
Applied in the electronic products such as camera, mobile phone, laptop, being a kind of ideal portable energy-storing device.Along with petroleum
Reinforcement of the intensification and people of energy crisis to environmental protection consciousness, lithium ion battery also gradually be applied to electric car industry with
And energy storage field, and obtain fast development.The comprehensive performances such as electric car its course continuation mileage, security performance, fast charge electrical property
It is quickly improved under the guidance in market, partial properties have pulled up to traditional fuel-engined vehicle.However, the safety of electric car
It can be still the thing of people's worry, especially battery pack is made of hundreds of, even thousands of single battery series and parallels,
As long as wherein safety accident occurs for a battery, it will lead to battery pack disabler or even the danger such as kindling occur for electric car
Danger.Therefore the security performance of single battery becomes the key for influencing electric car general safety.In order to make the security performance of battery
It is improved, people turn to sight on battery material, especially above electrolysis additive.However, as monomer energy is close
It is more and more out of strength in terms of ensureing cell safety to spend higher and higher, simple additive protection.The case where material protection fails
Under, the shell mechanism of battery is another road protecting wall for ensureing cell safety.Therefore, the shell mechanism for optimizing battery becomes electricity
The object that pond field is concerned.
Currently, soft bag lithium ionic cell, uses totally-enclosed sealing in structure design.When inside battery has gas generation
When, battery expands, not only the chemical property of the battery of serious damage, it is possible to can occur battery burst, leakage, very
To the danger of explosion, the personal safety of user is caused to seriously threaten.
Utility model content
The first of the utility model is designed to provide a kind of soft bag lithium ionic cell, existing in the prior art to alleviate
When inside battery has gas generation, it is possible to can occur battery burst, leakage, even explode the technical issues of.
Based on above-mentioned first purpose, soft bag lithium ionic cell provided by the utility model includes: shell and is arranged in shell
The top cover at top；
The top cover is equipped with anode ear and negative electrode lug；
The top cover is equipped with interface unit, and the interface unit is arranged between the anode ear and the negative electrode lug；
The interface unit is connected with relief valve, and the relief valve is circle.
As further technical solution, the top cover is equipped with groove, and the side wall of the groove is equipped with being equipped with for protrusion
Explosion rupture disk, the explosion rupture disk are equipped with sting, and the tip of the sting is arranged towards the bottom of the groove.
As further technical solution, the explosion rupture disk is connect with the sidewall weld of the groove.
As further technical solution, the inner wall of the shell is equipped with the rubber pad for damping.
As further technical solution, the inside of the shell is equipped with pressure sensor, the pressure sensor and institute
Relief valve is stated to be electrically connected with the controller respectively.
As further technical solution, the shell is plastic-aluminum membrane material.
As further technical solution, the inner surface and the outer surface of the shell is equipped with nickel coating.
As further technical solution, the inner surface of the shell, which is equipped with, removes oxygen layer and the absorption for adsorbed gas
Layer；
It is described except oxygen layer it is Nian Jie with the inner wall of the shell respectively with the adsorption layer.
As further technical solution, the internal diameter of the relief valve is 2-3mm, and the outer diameter of the relief valve is 4-
5mm。
The second of the utility model is designed to provide a kind of battery pack, existing in the prior art when in battery to alleviate
When there is gas generation in portion, it is possible to can occur battery burst, leakage, even explode the technical issues of.
Based on above-mentioned second purpose, battery pack provided by the utility model, including the soft bag lithium ionic cell.
The utility model bring has the beneficial effect that
Soft bag lithium ionic cell provided by the utility model includes: shell and the top cover that case top is arranged in；On top cover
Equipped with anode ear and negative electrode lug；Top cover is equipped with interface unit, and interface unit is arranged between anode ear and negative electrode lug；Interface unit is connected with
Relief valve, relief valve are circle.Airtightness is good, effectively outside air is avoided to enter inside battery, influences battery performance.This reality
Relief valve is opened after battery core produces gas with the soft bag lithium ionic cell of novel offer, battery core internal gas is discharged, prevents dangerous hair
It is raw.When thermal runaway occurs for battery, relief valve is first turned on, and is carried out pressure release, is prevented battery explosion.Inside single battery
When electrolyte exhausts, fluid infusion is carried out, prevents cycle performance of battery from reducing, improves battery cycle life.It is provided by the utility model
Soft bag lithium ionic cell simple process, it is not necessary that the resources such as existing coating apparatus are carried out with additional investment in research and development, cost is small, can
Industrialized production is fast implemented, is had a good application prospect.
In addition, the utility model additionally provides a kind of battery pack, including the soft bag lithium ionic cell.Wherein, Soft Roll
Structure, working principle and the beneficial effect of lithium ion battery have carried out specifically in the beneficial effect of soft bag lithium ionic cell
Bright, details are not described herein.Above-mentioned battery pack is had compared with the existing technology with soft bag lithium ionic cell provided by the utility model
Some advantages are identical, and details are not described herein.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first structural schematic diagram of soft bag lithium ionic cell provided by the embodiment of the utility model；
Fig. 2 is second of structural schematic diagram of soft bag lithium ionic cell provided by the embodiment of the utility model.
Icon: 1- shell；2- top cover；3- anode ear；4- negative electrode lug；5- interface unit；21- groove；6- is explosion-proof
Piece；7- sting；8- pressure sensor；9- removes oxygen layer；10- adsorption layer；11- top cap；12- relief valve.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, such as there is term " first ", " second ", being used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of soft bag lithium ionic cell and battery pack, and it is practical to this that multiple embodiments are given below
The soft bag lithium ionic cell and battery pack of novel offer are described in detail.
Embodiment one
As shown in Figs. 1-2, the soft bag lithium ionic cell that the utility model embodiment one provides includes: that shell 1 and setting exist
The top cover 2 at 1 top of shell；Top cover 2 is equipped with anode ear 3 and negative electrode lug 4；Top cover 2 is equipped with interface unit 5, and interface unit 5 is arranged just
Between tab 3 and negative electrode lug 4；Interface unit 5 is connected with relief valve 12, and relief valve 12 is circle.Soft Roll provided by the utility model
Lithium ion battery opens relief valve 12 after battery core produces gas, and battery core internal gas is discharged, prevents dangerous generation.Heat occurs in battery
When out of control, relief valve 12 is first turned on, and is carried out pressure release, is prevented battery explosion.When single battery electrolyte inside exhausts,
Fluid infusion is carried out, prevents cycle performance of battery from reducing, improves battery cycle life.Soft bag lithium ionic cell provided by the utility model
Simple process, it is not necessary that the resources such as existing coating apparatus are carried out with additional investment in research and development, cost is small, can fast implement industrialization
Production, has a good application prospect.
It should be noted that relief valve 12 can be set one, two, three ...
It should also be noted that, relief valve 12 can be placed on the different location of shell 1 or top cover 2.
It should also be noted that, relief valve 12 be equipped with top cap 11, when in shell 1 air pressure or temperature reach certain model
When enclosing, top cap 11, which can fall off, carries out pressure release, prevents to explode.
In the optinal plan of the present embodiment, top cover 2 is equipped with groove 21, and it is explosion-proof that the side wall of groove 21 is equipped with being equipped with for protrusion
Piece 6, explosion rupture disk 6 are equipped with sting 7, and the tip of sting 7 is arranged towards the bottom of groove 21.
When the air pressure in shell 1 increases, groove 21 deforms, and raises upward, and is punctured by sting 7, gas
Discharge, plays explosion-proof effect.
In the optinal plan of the present embodiment, explosion rupture disk 6 is connect with the sidewall weld of groove 21.
In the optinal plan of the present embodiment, the inner wall of shell 1 is equipped with the rubber pad for damping.
In the optinal plan of the present embodiment, the inside of shell 1 is equipped with pressure sensor 8, pressure sensor 8 and relief valve 12
It is electrically connected with the controller respectively.
In the optinal plan of the present embodiment, shell 1 is plastic-aluminum membrane material.
In the optinal plan of the present embodiment, the inner surface and the outer surface of shell 1 is equipped with nickel coating.
In the optinal plan of the present embodiment, the inner surface of shell 1, which is equipped with, removes oxygen layer 9 and the adsorption layer for adsorbed gas
10；Except oxygen layer 9 is Nian Jie with the inner wall of shell 1 respectively with adsorption layer 10.
The inner wall of shell 1, which is equipped with, removes oxygen layer 9.Can to avoid or reduce shell 1 in reducing substances encounter oxygen occur oxygen
The case where changing reduction reaction and issuing amount of heat, cause explosion on fire.
It should be noted that adsorption layer 10 can be active carbon layer, aluminium material, silica gel material or zeolite molecular sieve are aoxidized
Material.
In the optinal plan of the present embodiment, the adsorption layer 10 is multi-layer fire-retarded layer of silica gel.
In the optinal plan of the present embodiment, the internal diameter of relief valve 12 is 2-3mm, and the outer diameter of relief valve 12 is 4-5mm.
Embodiment two
The utility model embodiment two additionally provides a kind of battery pack, the Soft Roll lithium-ion electric provided including embodiment one
Pond.Wherein, the structure, working principle and beneficial effect of soft bag lithium ionic cell are in the beneficial effect of soft bag lithium ionic cell
It is described in detail, details are not described herein.Above-mentioned battery pack and soft bag lithium ionic cell provided by the utility model relative to
Advantage possessed by the prior art is identical, and details are not described herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.
Claims (10)
1. a kind of soft bag lithium ionic cell characterized by comprising shell and the top cover that case top is arranged in；
The top cover is equipped with anode ear and negative electrode lug；
The top cover is equipped with interface unit, and the interface unit is arranged between the anode ear and the negative electrode lug；
The interface unit is connected with relief valve, and the relief valve is circle.
2. soft bag lithium ionic cell according to claim 1, which is characterized in that the top cover is equipped with groove, described recessed
The side wall of slot is equipped with the explosion rupture disk that is equipped with of protrusion, and the explosion rupture disk is equipped with sting, and the tip of the sting is towards the groove
Bottom setting.
3. soft bag lithium ionic cell according to claim 2, which is characterized in that the side wall of the explosion rupture disk and the groove
It is welded to connect.
4. soft bag lithium ionic cell according to claim 1, which is characterized in that the inner wall of the shell, which is equipped with, is used for damping
Rubber pad.
5. soft bag lithium ionic cell according to claim 1, which is characterized in that the inside of the shell is equipped with pressure sensing
Device, the pressure sensor and the relief valve are electrically connected with the controller respectively.
6. soft bag lithium ionic cell according to claim 1, which is characterized in that the shell is plastic-aluminum membrane material.
7. soft bag lithium ionic cell according to claim 1, which is characterized in that the inner surface and the outer surface of the shell is equal
Equipped with nickel coating.
8. soft bag lithium ionic cell according to claim 1, which is characterized in that the inner surface of the shell, which is equipped with, removes oxygen layer
With the adsorption layer for adsorbed gas；
It is described except oxygen layer it is Nian Jie with the inner wall of the shell respectively with the adsorption layer.
9. soft bag lithium ionic cell according to claim 1, which is characterized in that the internal diameter of the relief valve is 2-3mm,
The outer diameter of the relief valve is 4-5mm.
10. a kind of battery pack, which is characterized in that including the described in any item soft bag lithium ionic cells of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716290.XU CN208986074U (en) | 2018-10-22 | 2018-10-22 | Soft bag lithium ionic cell and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716290.XU CN208986074U (en) | 2018-10-22 | 2018-10-22 | Soft bag lithium ionic cell and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986074U true CN208986074U (en) | 2019-06-14 |
Family
ID=66788613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821716290.XU Expired - Fee Related CN208986074U (en) | 2018-10-22 | 2018-10-22 | Soft bag lithium ionic cell and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208986074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290107A (en) * | 2020-09-14 | 2021-01-29 | 侯晓华 | Intelligent lithium ion battery packaging structure |
| CN114171840A (en) * | 2020-08-19 | 2022-03-11 | 比亚迪股份有限公司 | Battery, battery module, battery pack and electric vehicle |
-
2018
- 2018-10-22 CN CN201821716290.XU patent/CN208986074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171840A (en) * | 2020-08-19 | 2022-03-11 | 比亚迪股份有限公司 | Battery, battery module, battery pack and electric vehicle |
| CN114171840B (en) * | 2020-08-19 | 2023-07-14 | 比亚迪股份有限公司 | Battery, battery module, battery package and electric motor car |
| CN112290107A (en) * | 2020-09-14 | 2021-01-29 | 侯晓华 | Intelligent lithium ion battery packaging structure |
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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 |
Granted publication date: 20190614 Termination date: 20201022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |