CN105336886B - A kind of lithium ion battery cover board and its processing method - Google Patents
A kind of lithium ion battery cover board and its processing method Download PDFInfo
- Publication number
- CN105336886B CN105336886B CN201510615546.2A CN201510615546A CN105336886B CN 105336886 B CN105336886 B CN 105336886B CN 201510615546 A CN201510615546 A CN 201510615546A CN 105336886 B CN105336886 B CN 105336886B
- Authority
- CN
- China
- Prior art keywords
- glue
- cover board
- depressed part
- board body
- stud
- 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.)
- Expired - Fee Related
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 90
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 41
- 239000003822 epoxy resin Substances 0.000 claims abstract description 29
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 238000005202 decontamination Methods 0.000 claims abstract description 13
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 238000001723 curing Methods 0.000 claims description 8
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- XTUHPOUJWWTMNC-UHFFFAOYSA-N cobalt(2+);dioxido(dioxo)chromium Chemical compound [Co+2].[O-][Cr]([O-])(=O)=O XTUHPOUJWWTMNC-UHFFFAOYSA-N 0.000 claims description 4
- 230000005518 electrochemistry Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000013035 low temperature curing Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of lithium ion battery cover board, including cover board body and stud, stud has cylindrical bulge loop and bottom plate, mounting groove is formed between cylindrical bulge loop and bottom plate, cover board body is provided with depressed part, and depressed part is provided with mounting hole, cover board body is riveting in the mounting groove of stud by mounting hole, depressed part bottom surface is in contact with plate upper surface, and depressed part upper bottom surface, side wall and stud form a circle glue groove, and the epoxide-resin glue of sealing is perfused with glue groove；Stainless steel gasket is provided with mounting groove, its lower surface is in contact with depressed part upper bottom surface, for cover board body to be tightly fixed in mounting groove.Processing technology is also related to, plane cover board body stamps out depressed part and riveted holes, assembling copper stud, stainless steel gasket, connects above-mentioned part, and full epoxide-resin glue is filled at depressed part, curing epoxy resin adhesive, carries out oil removing decontamination cleaning.Product strength height of the present invention, liquid-leakage preventing, good airproof performance, processing method is simple and convenient, and cost is low.
Description
Technical field
The present invention relates to a kind of lithium ion battery cover board and its processing method.
Background technology
With the mature of lithium ion battery technology and the appearance of higher energy density material, lithium ion battery is by more next
More it is widely used in electric automobile field, it is desirable to which lithium ion battery has more excellent charge-discharge performance, in large current density shape
Cell internal pressure is higher under state, the phenomenon of leakage easily occurs, therefore the requirement to battery sealing-performance improves.At present, lithium ion
The mode that battery cover board rivets with stud generally use is connected, and is existed when riveting is processed because material stress inequality is easily caused at riveting
The microdefect such as micro- deformation or micro-crack, when cell internal pressure is excessive, electrolyte or gas easily discharge in fault location,
Increase the generation of uncontrollable unsafe condition.After especially lithium ion battery works long hours, encapsulant aging, follow the string with
Afterwards, cause stress relaxation at riveting, loosen, and cause leakage at sealing.The slight leakage of lithium ion battery can influence making for battery
Use performance and used life；The meeting of serious leakage causes the electric leakage of the electrical equipments such as vehicle, battery system failure, equipment scrapping, very
To causing security incident.Therefore, the sealing of lithium ion battery is to ensure the key of electric automobile performance and security performance.
The content of the invention
Present invention aim to address technical problem existing for existing lithium battery cover plate, there is provided a kind of intensity is high, leakproof
Liquid, good airproof performance, improve the lithium ion battery cover board and its processing method of battery reliability.
A kind of lithium ion battery cover board, including cover board body and stud, the stud middle part have cylindrical bulge loop, bottom
Provided with bottom plate, the mounting groove of installation cover board body is formed between the cylindrical bulge loop and bottom plate, the cover board body is provided with
Depressed part, depressed part bottom surface are provided with mounting hole, and cover board body is riveting in the mounting groove of stud by mounting hole, depressed part bottom
Face is in contact with plate upper surface, and the depressed part upper bottom surface, side wall and stud form a circle glue groove, and sealing is perfused with glue groove
Epoxide-resin glue；Ring stainless steel pad is provided with the mounting groove, its lower surface is in contact with depressed part upper bottom surface, uses
It is tightly fixed in by cover board body in mounting groove.
Preferably, it is the further sealing of increase cover board body and stud, the cover plate depressed part and mounting groove, bottom
Plastic spacer is equipped with the surface that plate, stainless steel gasket are in contact.
Preferably, the lower inner ring of plastic spacer forms an arc convex, bottom plate is provided with corresponding peace caulking groove, for card
Enter arc convex.
Preferably, the glue groove inner surface is Non-smooth surface plane, it is specifically as follows frosting, sandblasting face or to pass through
Process face after cobalt-chromate cleaning.
Preferably, the glue groove inner surface is coated with electrochemistry ceramic membrane.
Preferably, the stud material is copper.
Preferably, the cover board body material is stainless steel or aluminium alloy.
Preferably, the stud top is machined with internal thread or external screw thread.
Preferably, the epoxide-resin glue thickness in the glue groove is 0.1mm ~ 15mm.
The processing method of above-mentioned lithium ion battery cover board, comprises the following steps：
1）Stamped process molding flat type cover board body；
2）Depressed part is stamped and formed out at plane cover board body center, the size of depressed part is set according to injecting glue amount；
3）Oil removing decontamination cleaning is carried out to cover board body；
4）In depressed part bottom stamping riveting hole；
5）Stud, stainless steel gasket are assembled at cover board body riveted holes, above-mentioned part is connected by riveting process；
6）Oil removing decontamination cleaning is carried out to cover plate；
7）Full epoxide-resin glue is filled at the depressed part of cover board body；
8）Curing epoxy resin adhesive；
9）Oil removing decontamination cleaning is carried out to cover plate.
Preferably, the epoxide-resin glue includes A glue and B glue, wherein A glue is solid from bisphenol A type epoxy resin, normal temperature
Change type glue, low temperature curing type glue, UV light-cured types glue, hot setting type glue, inorganic formulation glue, organic formulation glue or aqua type
Glue, as adhesive；B glue selects amine or anhydrides, and as curing agent, the volume ratio of A glue and B glue is 1:5~5:1.
Preferably, in described step 5), also with plastic spacer, the cover plate depressed part and mounting groove, bottom plate, no
Contacted on the surface that rust steel plate washer is in contact with plastic spacer.
Preferably, the glue groove inner surface is Non-smooth surface plane, it is specifically as follows frosting, sandblasting face or to pass through
Process face after cobalt-chromate cleaning；Or glue groove inner surface is coated with electrochemistry ceramic membrane.
Preferably, the epoxide-resin glue thickness in the glue groove is 0.1mm ~ 15mm.
Lithium ion battery cover board of the present invention, glue groove is set at cover board body and Stud connection, passes through asphalt mixtures modified by epoxy resin
Gap caused by riveting is filled up in the flowing of fat glue, and then realizes being fully sealed for assembling lithium ion battery cover plate, effectively suppresses electrolysis
Flowed out at husky hole that liquid is formed in riveting process or micro-crack, and gas passes through riveting during preventing high current charge-discharge
Meet place to spray, improve battery reliability；The impurity such as metal fragment can be avoided to enter riveting gap simultaneously, prevent battery short circuit；
In addition, further cover sheet body surface contacts with the external world, anti-oxidation, soda acidization corrosion.Described lithium-ion battery
Plate processing method, there is the features such as process is simple and convenient, and cost is cheap.
Brief description of the drawings
Fig. 1 is the lithium ion battery cover board overlooking the structure diagram of embodiment 1；
Fig. 2 is the lithium ion battery cover board sectional view of embodiment 1；
Fig. 3 is the lithium ion battery cover board sectional view of embodiment 2.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, a kind of lithium ion battery cover board, including cover board body 1 and stud 2, in the present embodiment,
The cover board body 1 is disc, and the stud 2 is located among cover board body 1.The middle part of stud 2 has cylindrical bulge loop
21, bottom is provided with bottom plate 22, and this implementation bottom plate 22 is square, but in addition to square, other shapes such as circle,
Rectangle etc. all applies to this.Cylindrical bulge loop 21 and bottom plate 22 on stud 2 are integrated casting and formed.The circular cylindrical projection
The mounting groove 23 of installation cover board body 1 is formed between ring 21 and bottom plate 22.It is described for ease of cover board body 1 and the riveted of stud 2
The cylindrical lower end of bulge loop 21 is skewed, i.e., the top diameter of cylindrical bulge loop 21 is more than base diameter.
The cover board body 1 is provided with depressed part 11, and the bottom surface of depressed part 11 is provided with circular mounting hole 12, mounting hole 12 it is straight
Footpath is less than the length of side of bottom plate 22, generally 1-30mm.Cover board body 1 is riveting in the mounting groove 23 of stud 2 by mounting hole 12,
The bottom surface of depressed part 11 is in contact with the upper surface of bottom plate 22, the upper bottom surface of depressed part 11, side wall and stud cylinder bulge loop 21
Outer wall forms a circle glue groove 3, and the epoxide-resin glue 4 of sealing is perfused with glue groove 3；Annular is additionally provided with the mounting groove 23 not
Become rusty steel plate washer 5, and its lower surface is in contact with the upper bottom surface of depressed part 11, for cover board body 1 to be tightly fixed in mounting groove 23.
To increase compatible degree of the epoxide-resin glue 4 in glue groove 3, the inner surface of glue groove 3 is Non-smooth surface plane, specifically may be used
Think frosting, sandblasting face or for process face after cobalt-chromate cleans.One layer can also be plated in the inner surface of glue groove 3
Electrochemistry ceramic membrane.The thickness of epoxide-resin glue 4 in the glue groove 3 is generally 0.1mm ~ 15mm, with specific reference to the width of glue groove
Depending on.
The processing method of above-mentioned lithium ion battery cover board, comprises the following steps：
First, stamped process molding flat type cover board body 1, then strikes out at the center of plane cover board body 1
The bowl-shape depressed part 11 of one, type, the size of depressed part 11 control according to injecting glue amount, then carry out oil removing decontamination cleaning.It is being recessed
The bottom stamping riveting hole of portion 11, cover board body 1, stud 2, stainless steel gasket 5 according to the shape and structure of product through staking process
Assemble, oil removing decontamination cleaning is carried out to cover plate.After cleaning, full asphalt mixtures modified by epoxy resin is filled at the depressed part 11 of cover board body 1
Fat glue 4, epoxide-resin glue 4 can be penetrated into the gap of three's contact, form sealing protection.Final curing epoxide-resin glue 4, then
Secondary decontamination cleaning.
The epoxide-resin glue includes A glue and B glue, and wherein A glue can select bisphenol A type epoxy resin, normal temperature cured type
Glue, low temperature curing type glue, UV light-cured types glue, hot setting type glue, inorganic formulation glue, organic formulation glue or aqua type glue,
As adhesive；B glue can select amine or anhydrides, and as curing agent, the volume ratio of A glue and B glue is 1: 1.Epoxy resin
It is wide by (- 50 ~ 160 that glue (ebonite) possesses acid and alkali-resistance, temperature in useoC), shear strength high (35MPa), peel strength it is high (>=
3.5kN/m), (>=20MPa) high with metal bonding force, good insulation preformance (＞ 15kV/mm), the big (＞ 10 of resistivity15Ω * cm) etc.
Characteristic, therefore may apply on assembling lithium ion battery cover plate, used as sealant.
Embodiment 2
Lithium ion battery cover board structure and embodiment 1 described in the present embodiment is basically identical, and the main distinction is：Such as Fig. 3
Shown, for the sealing of further increase cover board body 1 and stud 2, the place that cover board body 1 is in contact with stud 2 is equipped with
Plastic spacer 6, i.e., it is equipped with the surface that described cover plate depressed part 11 is in contact with mounting groove 23, bottom plate 22, stainless steel gasket 5
Plastic spacer 6.For reliable assembling, the lower inner ring of plastic spacer 6 forms an arc convex 61, and bottom plate 22 is provided with corresponding pacify
Caulking groove, for being caught in arc convex 61.
The processing method of above-mentioned lithium ion battery cover board, comprises the following steps：
First, stamped process molding flat type cover board body 1, then strikes out at the center of plane cover board body 1
The bowl-shape depressed part 11 of one, type, the size of depressed part 11 control according to injecting glue amount, then carry out oil removing decontamination cleaning.It is being recessed
The bottom stamping riveting hole of portion 11, the shape and structure cover board body 1, stud 2, stainless steel gasket 5 and plastic spacer 6 according to product
Assembled through staking process, oil removing decontamination cleaning is carried out to cover plate.After cleaning, filled out at the depressed part 11 of cover board body 1
Full of epoxide-resin glue 4, epoxide-resin glue 4 can be penetrated into the gap of three's contact, form sealing protection.Final curing epoxy
Resin glue 4, again decontamination cleaning.Plastic spacer 6 described in the present embodiment is the annular trough body of an outward opening, and cover plate is recessed
Portion 11 is inserted into cell body opening, and the bottom plate 22 of stainless steel gasket 5 and the lower section of stud 2 is affixed on the lateral surface of cell body so that cover plate
Contacted on the surface that depressed part 11 is in contact with mounting groove 23, bottom plate 22, stainless steel gasket 5 with plastic spacer 6.Add modeling
Backing strap piece 6 and then the injection epoxide-resin glue 4 in the groove of cover board body 1, so that the sealing of battery inside and outside obtains
To duplicate protection, more reliably.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, in essence of the invention
In god and scope of the claims, to any modifications and changes of the invention made, protection scope of the present invention is both fallen within.
Claims (7)
1. the processing method of lithium ion battery cover board, it is characterised in that comprise the following steps：
(1) stamped process molding flat type cover board body；
(2) depressed part is stamped and formed out at plane cover board body center, the size of depressed part controls according to injecting glue amount；
(3) oil removing decontamination cleaning is carried out to cover board body；
(4) in depressed part bottom stamping riveting hole；
(5) copper post, stainless steel gasket are assembled at cover board body riveted holes, above-mentioned part is connected by riveting process；
(6) oil removing decontamination cleaning is carried out to cover plate；
(7) full epoxide-resin glue is filled at the depressed part of cover board body；
(8) curing epoxy resin adhesive；
(9) oil removing decontamination cleaning is carried out to cover plate.
2. the processing method of lithium ion battery cover board as claimed in claim 1, it is characterised in that：The epoxide-resin glue includes
A glue and B glue, wherein A glue are from bisphenol A type epoxy resin, normal temperature cured type glue, low temperature curing type glue, UV light-cured types glue, height
Warm curing type glue, inorganic formulation glue, organic formulation glue or aqua type glue, as adhesive；B glue selects amine or anhydrides,
As curing agent, the volume ratio of A glue and B glue is 1:5~5:1.
3. the processing method of lithium ion battery cover board as claimed in claim 1, it is characterised in that：Obtained by above-mentioned processing method
A kind of lithium ion battery cover board arrived, including cover board body and stud, stud middle part have cylindrical bulge loop, and bottom is provided with bottom
Plate, the mounting groove of installation cover board body being formed between the cylindrical bulge loop and bottom plate, the cover board body is provided with depressed part,
Depressed part bottom surface is provided with mounting hole, and cover board body is riveting in the mounting groove of stud by mounting hole, depressed part bottom surface and bottom
Plate upper surface is in contact, and the depressed part upper bottom surface, side wall and stud form a circle glue groove, and the ring of sealing is perfused with glue groove
Oxygen resin glue；Ring stainless steel pad is provided with the mounting groove, its lower surface is in contact with depressed part upper bottom surface, for that will cover
Plate body is tightly fixed in mounting groove.
4. the processing method of lithium ion battery cover board as claimed in claim 3, it is characterised in that：The cover plate depressed part and peace
Plastic spacer is equipped with the surface that tankage, bottom plate, stainless steel gasket are in contact；The lower inner ring of the plastic spacer forms an arc
Shape is raised, and bottom plate is provided with corresponding peace caulking groove, for being caught in arc convex.
5. the processing method of lithium ion battery cover board as claimed in claim 3, it is characterised in that：The glue groove inner surface is non-
Smooth flat, specially frosting, sandblasting face are either coated with for the process face after cobalt-chromate cleans or glue groove inner surface
Electrochemistry ceramic membrane.
6. the processing method of lithium ion battery cover board as claimed in claim 3, it is characterised in that：Asphalt mixtures modified by epoxy resin in the glue groove
Fat glue thickness is 0.1mm ~ 15mm.
7. the processing method of lithium ion battery cover board as claimed in claim 3, it is characterised in that：The stud material is copper；
The cover board body material is stainless steel or aluminium alloy；The stud top is machined with internal thread or external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615546.2A CN105336886B (en) | 2015-09-24 | 2015-09-24 | A kind of lithium ion battery cover board and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615546.2A CN105336886B (en) | 2015-09-24 | 2015-09-24 | A kind of lithium ion battery cover board and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105336886A CN105336886A (en) | 2016-02-17 |
| CN105336886B true CN105336886B (en) | 2018-03-06 |
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ID=55287288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510615546.2A Expired - Fee Related CN105336886B (en) | 2015-09-24 | 2015-09-24 | A kind of lithium ion battery cover board and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105336886B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711469A (en) * | 2016-12-22 | 2017-05-24 | 温州职业技术学院 | Core component diamond-like carbon coating-reinforced cylindrical battery cell grinding and riveting machining machine with camera monitoring mechanism |
| CN107989076A (en) * | 2017-11-28 | 2018-05-04 | 佛山科学技术学院 | A kind of inspection well cover of municipal works |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2840334Y (en) * | 2005-06-17 | 2006-11-22 | 深圳市比克电池有限公司 | Lithium ion battery covering plate, battery case and battery |
| CN102280597B (en) * | 2011-06-29 | 2015-11-25 | 深圳市科达利实业股份有限公司 | Large-capacity power lithium battery and hush panel thereof |
| CN103296228A (en) * | 2013-05-30 | 2013-09-11 | 深圳市科达利实业股份有限公司 | Circular power battery cover plate |
| CN205122653U (en) * | 2015-09-24 | 2016-03-30 | 浙江谷神能源科技股份有限公司 | Lithium ion cell cover plate |
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- 2015-09-24 CN CN201510615546.2A patent/CN105336886B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105336886A (en) | 2016-02-17 |
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Granted publication date: 20180306 Termination date: 20210924 |