CN107863462A - A kind of lithium ion battery cover being vented and preparation method - Google Patents
A kind of lithium ion battery cover being vented and preparation method Download PDFInfo
- Publication number
- CN107863462A CN107863462A CN201710878800.7A CN201710878800A CN107863462A CN 107863462 A CN107863462 A CN 107863462A CN 201710878800 A CN201710878800 A CN 201710878800A CN 107863462 A CN107863462 A CN 107863462A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- vented
- battery cover
- screw
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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 invention discloses a kind of lithium ion battery cover being vented and preparation method, and the device fabrication and installation are simple, exhaust process is controllable, applicable model is extensive, it is numerous to be applicable platform and are applicable to battery life cycle overall process.The present invention is that the preparation of sealing screw is carried out using Shooting Technique first, and the hole of specific structure is then stamped on lithium ion battery cover, screw is combined with hole.Elastic by screw realizes the release of air pressure inside and isolation with extraneous air.This method strong operability, flexibility ratio are high, can be good at being combined with existing all types of lithium ion batteries, are easily converted into industrial production and research and development technology.
Description
Technical field
The present invention relates to lithium ion battery exhaust technique field, more particularly to a kind of lithium ion battery cover being vented with
And preparation method, the multiple exhaust in battery life cycle can be achieved.
Background technology
In recent years, the fast development in the field such as consumer electronics product, new-energy automobile and energy-storage system, makes to battery
It is constantly harsh with environmental requirement.In order to solve the problems, such as the discharge and recharge of battery in different environments, start with from battery material, therewith
What is come is inside battery aerogenesis problem, and as the continuous improvement of battery energy density, inside battery gas production also constantly add
Greatly.
How to be exhausted is present various battery urgent problems to be solved, and gas production conference causes rectangular cell, Soft Roll
Packed battery tympanites and the explosion-proof valve block rupture of cylindrical battery, make battery serious security incident occur.
The battery cap that present each battery research institution invents and manufactured has following several：Circular configuration is such as：A kind of " lithium
Battery cap (CN104865067A) ", " a kind of cylinder type lithium battery safe cap (CN204885274U) " and " anti-explosion battery
Shown in block (CN206022443U) ", rectangular cell block is such as：" a kind of cover plates of lithium ion power battery (CN206040725U) "
It is shown.All blocks of lithium ion battery at present all do not have exhaust capacity, when internal aerogenesis is excessive in use for battery,
Circulating battery can be caused to be deteriorated, service life shortens.And tympanites occurs in rectangular cell, with outer enclosure equipment can not
Match somebody with somebody, serious meeting causes battery explosion.Cylindrical battery is caused due to the not plasticity of its shell, the too conference of internal gas tympanites
The security incidents such as even more serious quick-fried spray and blast.Exhaust apparatus is added, expansion that internal aerogenesis brings can be effectively solved, follow
The common electrical property of lithium ion battery and the safety highs such as ring is deteriorated, blast.
The content of the invention
For above-mentioned problems of the prior art, the invention provides a kind of lithium ion battery cover being vented with
And preparation method.
To realize the purpose of the present invention, the invention provides a kind of lithium ion battery cover being vented, the battery cover
Perforate on cap, the perforate are connected with injection screw, and lithium ion battery cover structure can be vented by connecting formation by both.
Wherein, the position of opening can be in block it is existing power-off and explosion prevention function mechanism beyond optional position.
Wherein, the injection screw forms institute for the metallic screw one of specific standard is carried out into injection using encapsulant
The seal configuration needed, and be open on the end surface that screw is not molded.
Wherein, described encapsulant is PP (butadiene-styrene rubber) or PBT (polybutylene terephthalate (PBT)).
Wherein, described screw specification is M1.0-M2.6.
Wherein, the required seal configuration of described formation can be arbitrary shape.
Wherein, the end surface upper shed not being molded in screw is shaped as " one " font or " ten " font.
Wherein, the block can be column lithium ion battery block, cylindrical supercapacitor block, electronic product
The small rectangular lithium ion battery block of class and power large square lithium ion battery cover.
Wherein, described perforate can be through hole or screwed hole.Through-hole diameter is 1mm-2.5mm, screw thread hole gauge
Lattice are M1.0-M2.6.
Wherein, described injection screw can be mounted directly on the screwed hole of block, can also be on the through hole of block
Square nut fixing screws.
Correspondingly, present invention also offers a kind of lithium ion battery cover preparation method, methods described to comprise the following steps：
(1) injection screw is prepared：The metallic screw nut head of specific standard is molded using encapsulant, forms institute
The seal configuration needed, is open on the end surface that screw is not molded；
(2) perforate on lithium ion battery cover；
(3) injection screw has been installed to out in the block in hole, has formed the lithium ion battery cover structure that can be vented, according to
Different capping structures are assembled on the battery case of corresponding construction, form a battery case that can be vented.
Compared with prior art, beneficial effects of the present invention are to be entered the invention discloses one kind using injection bolt structure
The lithium ionic cell covering cap device of row exhaust.The device fabrication and installation are simple, exhaust process is controllable, applicable model is extensive, applicable
Platform is numerous and is applicable to battery life cycle overall process.It is the preparation that sealing screw is carried out using Shooting Technique, so
The hole of specific structure is stamped on lithium ion battery cover afterwards, screw is combined with hole.Elastic by screw is realized
The release of air pressure inside and the isolation with extraneous air.This method strong operability, flexibility ratio are high, can be good at it is existing each
Type lithium ion battery is combined, and is easily converted into industrial production and research and development technology.
Brief description of the drawings
Fig. 1 is bolt structure figure after injection prepared by the embodiment of the present invention 1,2,3,4；
Fig. 2 is that column lithium ion battery prepared by the embodiment of the present invention 1 can be vented capping structure figure；
Fig. 3 is that ultracapacitor battery prepared by the embodiment of the present invention 2 can be vented capping structure figure；
Fig. 4 is that small rectangular lithium ion battery prepared by the embodiment of the present invention 3 can be vented capping structure figure；
Fig. 5 is that large square lithium ion battery prepared by the embodiment of the present invention 4 can be vented capping structure figure.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
It should be noted that " connection " described herein and the word for expressing " connection ", such as " being connected ",
" connected " etc., both it was directly connected to including a certain part and another part, and also passed through miscellaneous part and another portion including a certain part
Part is connected.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
As shown in figure 1, be in the following embodiment 1,2,3,4 of the application be molded after bolt structure figure, the word of 1.1- screws one
Groove, 1.2- metallic screws, 1.3- injection molded elastomers, metallic screw nut head are molded, and injected plastics material used is butadiene-styrene rubber, shape
Shape is the cylindrical structure with conical head, it is desirable to coated firmly larger one of screw, forms required seal configuration.
Embodiment 1
A kind of preparation method for the column lithium ion battery capping structure that can be vented repeatedly, step are as follows：
(1) injection screw is prepared：The metallic screw nut head of M1.2 specifications is molded, injected plastics material used is butylbenzene
Rubber, it is shaped as the cylindrical structure with conical head, it is desirable to coated firmly larger one of screw, form required seal configuration.
(2) punched in column lithium ion battery block：In column lithium ion battery block apart from top cover upper mounting plate
Flat area at 3mm stamps the screwed hole that 1 specification is M1.2, to be molded the installation of screw.
(3) injection screw has been installed to out on the integrated top cover of screwed hole, then in the additional upper annular sealing of top cover
Enclose (sealing ring lower edge is 0.8mm), form a cylindrical capping structure.
Prepared capping structure is as shown in Fig. 2 2.1- column lithium ion battery blocks, 2.2 be injection screw.
Embodiment 2
A kind of preparation method for the ultracapacitor battery capping structure that can be vented repeatedly, step are as follows：
(1) injection screw is prepared：The metallic screw nut head of M1.2 specifications is molded, injected plastics material used is butylbenzene
Rubber, it is shaped as the cylindrical structure with conical head, it is desirable to coated firmly larger one of screw, form required seal configuration.
(2) perforate in ultracapacitor battery block：In the centrosymmetric position of ultracapacitor battery block liquid injection port
M1.2 screwed hole is put out, to be molded the installation of screw.
(3) injection screw has been installed to out in the ultracapacitor battery block of screwed hole, what formation one can be vented
Ultracapacitor battery novel cover cap.
Prepared capping structure is as shown in figure 3,3.1- ultracapacitor battery blocks, 2.2 be injection screw.
Embodiment 3
A kind of small rectangular lithium ion battery that can be vented repeatedly can be vented the preparation of capping structure, and step is as follows：
(1) injection screw is prepared：The metallic screw nut head of M1.2 specifications is molded, injected plastics material used is butylbenzene
Rubber, it is shaped as the cylindrical structure with conical head, it is desirable to coated firmly larger one of screw, form required seal configuration.
(2) perforate in small rectangular lithium ion battery block：At small rectangular lithium ion battery block upper liquid filling mouth center pair
M1.2 screwed hole is opened in the position of title, to be molded the installation of screw.
(3) injection screw has been installed to out in the small rectangular lithium ion battery block of screwed hole, forming one can be vented
The new capping structure of small rectangular lithium ion battery.
Prepared capping structure is as shown in figure 4, the small rectangular lithium ion battery blocks of 3.1-, 2.2 be injection screw.
Embodiment 4
A kind of large square lithium ion battery that can be vented repeatedly can be vented the preparation of capping structure, and step is as follows：
(1) injection screw is prepared：The metallic screw nut head of M1.2 specifications is molded, injected plastics material used is butylbenzene
Rubber, it is shaped as the cylindrical structure with conical head, it is desirable to coated firmly larger one of screw, form required seal configuration.
(2) perforate on large square lithium ion power battery cap：The fluid injection on large square lithium ion power battery cap
M1.2 screwed hole is opened in the centrosymmetric position of mouth, to be molded the installation of screw.
(3) injection screw has been installed to out on the large square lithium ion power battery cap of screwed hole, forming one can
The new capping structure of large square lithium-ion-power cell of exhaust.
Prepared capping structure is as shown in figure 5,5.1- large square lithium ion battery covers, 2.2 be injection screw.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of 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 it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of lithium ion battery cover being vented, it is characterised in that perforate on the battery cap, the perforate are connected with
Screw is molded, lithium ion battery cover structure can be vented by connecting formation by both.
2. the lithium ion battery cover according to claim 1 being vented, it is characterised in that the injection screw is use
The metallic screw nut head of specific standard is carried out injection and forms required seal configuration by encapsulant, and is not molded in screw
An end surface on be open.
3. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described encapsulant is PP
(butadiene-styrene rubber) or PBT (polybutylene terephthalate (PBT)).
4. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described screw specification is
M1.0-M2.6。
5. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described formation it is required close
Seal structure can be arbitrary shape.
6. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described not to be molded in screw
An end surface upper shed be shaped as " one " font or " ten " font.
7. the lithium ion battery cover according to claim 2 being vented, it is characterised in that the block can be cylinder
Shape lithium ion battery cover, cylindrical supercapacitor block, the small rectangular lithium ion battery block of electronic product and power
Large square lithium ion battery cover.
8. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described perforate can be logical
Hole or screwed hole.Through-hole diameter is 1mm-2.5mm, and screwed hole specification is M1.0-M2.6.
9. the lithium ion battery cover according to claim 2 being vented, it is characterised in that described injection screw can be with
To be mounted directly on the screwed hole of block, can also above the through hole of block nut fixing screws.
10. a kind of lithium ion battery cover preparation method, it is characterised in that methods described comprises the following steps：
(1) injection screw is prepared：The metallic screw nut head of specific standard is molded using encapsulant, formed required
Seal configuration, it is open on the end surface that screw is not molded；
(2) perforate on lithium ion battery cover；
(3) injection screw has been installed to out in the block in hole, the lithium ion battery cover structure that can be vented has been formed, according to difference
Capping structure be assembled on the battery case of corresponding construction, formed a battery case that can be vented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878800.7A CN107863462A (en) | 2017-09-26 | 2017-09-26 | A kind of lithium ion battery cover being vented and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878800.7A CN107863462A (en) | 2017-09-26 | 2017-09-26 | A kind of lithium ion battery cover being vented and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863462A true CN107863462A (en) | 2018-03-30 |
Family
ID=61699518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710878800.7A Pending CN107863462A (en) | 2017-09-26 | 2017-09-26 | A kind of lithium ion battery cover being vented and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863462A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050208369A1 (en) * | 2004-03-19 | 2005-09-22 | Puhlick Alben F | Liquid retaining pressure relief valve for battery cells |
| CN201804923U (en) * | 2010-05-04 | 2011-04-20 | 山东神工宏全模具有限公司 | Power battery cover plate with explosionproof device |
| CN206293586U (en) * | 2017-01-06 | 2017-06-30 | 陕西海恩新材料有限责任公司 | A kind of fluorophosphoric acid vanadium lithium positive electrode lithium battery of long service life |
-
2017
- 2017-09-26 CN CN201710878800.7A patent/CN107863462A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050208369A1 (en) * | 2004-03-19 | 2005-09-22 | Puhlick Alben F | Liquid retaining pressure relief valve for battery cells |
| CN201804923U (en) * | 2010-05-04 | 2011-04-20 | 山东神工宏全模具有限公司 | Power battery cover plate with explosionproof device |
| CN206293586U (en) * | 2017-01-06 | 2017-06-30 | 陕西海恩新材料有限责任公司 | A kind of fluorophosphoric acid vanadium lithium positive electrode lithium battery of long service life |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201436694U (en) | Power battery liquid injection and explosion proof device | |
| CN108807833A (en) | A kind of battery liquid-filling structure and battery | |
| CN106972121A (en) | A kind of dynamic lithium battery safety anti-explosive cover plate | |
| CN102903866B (en) | Lithium ion battery | |
| CN107863462A (en) | A kind of lithium ion battery cover being vented and preparation method | |
| CN206610837U (en) | A kind of lithium ion battery cover board with nanometer burst disk | |
| CN201438479U (en) | Explosion-proof unit for lithium ion batteries | |
| CN201408795Y (en) | Explosion-protection device of power lithium battery | |
| CN202142596U (en) | Bidirectional safety valve | |
| CN203521538U (en) | Maintainable sealing lead-acid storage battery | |
| CN102564673A (en) | Detection method for bursting pressure of lithium ion battery cover | |
| CN102064293A (en) | Cover plate structure of battery | |
| CN104393334A (en) | Lithium ion battery | |
| CN201725823U (en) | Multifunctional battery shell explosion-proof device with integrated cover plate | |
| CN201051449Y (en) | A device for preventing common capacitor from explosion | |
| CN203812930U (en) | Power cylinder type lithium ion battery safety cap | |
| WO2017165996A1 (en) | Storage battery | |
| CN201104324Y (en) | Secondary battery cover plate component and secondary battery adopting the same | |
| CN206893681U (en) | Safety anti-explosive battery | |
| CN201741737U (en) | Anti-explosion device of batteries | |
| CN202042375U (en) | Leading wire type aluminum electrolytic capacitor with dissipation control | |
| CN214411344U (en) | Power battery anti-loosening cover plate | |
| CN207611801U (en) | A kind of alternate form cylinder power lithium battery combination mechanism | |
| CN203134561U (en) | Explosion-proof capacitor | |
| CN218182390U (en) | Power supply device of explosion-proof storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180330 |