CN103904255A - Lithium ion battery case - Google Patents
Lithium ion battery case Download PDFInfo
- Publication number
- CN103904255A CN103904255A CN201410163060.5A CN201410163060A CN103904255A CN 103904255 A CN103904255 A CN 103904255A CN 201410163060 A CN201410163060 A CN 201410163060A CN 103904255 A CN103904255 A CN 103904255A
- Authority
- CN
- China
- Prior art keywords
- shell body
- housing section
- sealed portion
- mouth
- battery
- 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.)
- Granted
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 230000002787 reinforcement Effects 0.000 claims description 40
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 238000003723 Smelting Methods 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 230000008719 thickening Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
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
-
- 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)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a lithium ion battery case. The lithium ion battery case comprises a case body, wherein the upper part of the case body is provided with an opening, the case body comprises a sealing part and a case part, the sealing part is the upper end part of the case body, the case part is adjacent to the lower end part of the sealing part, the thickness of the sealing part is greater than that of the case part, the outer surface of the case part is provided with a plurality of reinforcing ribs, the reinforcing ribs are longitudinally distributed in a convex manner along the case part, a groove is formed between every two adjacent reinforcing ribs, and the sealing part, the case part and the reinforcing ribs are integrally formed. By adopting the lithium ion battery case, the heat produced in the application process of a battery can be discharged in time, the battery performance can be prevented from being influenced by the high temperature of the battery, the battery sealing part has a sufficient smelting area, so that the strength of the battery can be improved, the energy density of the battery can be improved, and the production cost of the battery can be reduced.
Description
Technical field
The present invention relates to a kind of lithium ion battery case.
Background technology
At present, the outer surface of the housing of lithium ion battery is generally vertical plane.In the time that multiple lithium ion batteries use in groups, for saving usage space, conventionally adopt the adjacent mode of multiple batteries to distribute.Lithium ion battery in use, can produce larger heat, due to adjacent distribution between battery, heat can not be shed in time, thus, can cause whole battery pack temperature to raise, thereby affects the serviceability of lithium ion battery.
In addition the existing general hot plate welding mode that adopts of case lithium ion battery sealing of moulding.For guaranteeing the intensity of the rear battery of sealing, generally can require to increase the thickness of seal location.Due to existing lithium-ion battery shell, its surrounding consistency of thickness, this just need to increase the thickness of battery container.Along with the increase of battery container wall thickness, battery own wt also rises thereupon, and still, the energy density of battery but reduces thereupon.
Summary of the invention
The technical problem to be solved in the present invention is weak heat-dissipating and the low defect of lithium ion battery energy density when overcoming existing lithium ion battery and to use in groups, and a kind of lithium ion battery case is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of lithium ion battery case, it comprises a shell body, the upper opening of described shell body, its feature is, described shell body comprises a mouth-sealed portion and a housing section, described mouth-sealed portion is the upper end of described shell body, described housing section is adjacent to the bottom of described mouth-sealed portion, the thickness of described mouth-sealed portion is greater than the thickness of described housing section, the outer surface of described housing section is provided with multiple reinforcements, described reinforcement is along the longitudinally projection distribution of described housing section, between two adjacent described reinforcements, form a groove, described mouth-sealed portion, described housing section and described reinforcement are one-body molded.
In the time that lithium ion battery uses in groups, generally adopt wind-cooling heat dissipating mode.Groove between adjacent reinforcement, for heat radiation provides vent passages, can discharge the heat producing in battery use procedure in time, avoids battery temperature too high and affect the performance of battery performance.The reinforcement of housing section outer surface can also increase the intensity of shell body.The thickness of the Thickness Ratio housing section of mouth-sealed portion is large, has guaranteed the thickness of seal location, and make has enough melting areas in the time that battery cover seals housing, allows battery strength be increased.Due to the thickness without increasing again housing section, therefore, energy content of battery density is improved, and has reduced the production cost of battery.
Preferably, the internal face of described mouth-sealed portion flushes with the internal face of described housing section, and the junction of the outside wall surface of described mouth-sealed portion and the outside wall surface of described housing section is the chamfering of 5 °～30 °.Like this, mouth-sealed portion thickens in the mode thickening to shell body exterior, has both met the thickness of seal location, makes again shell body easily manufactured.Junction is chamfering structure, mouth-sealed portion is connected more smooth with housing section, and then strengthens the intensity of connecting portion.
Preferably, the outside wall surface of described mouth-sealed portion flushes with the outside wall surface of described housing section, and the junction of the internal face of described mouth-sealed portion and the internal face of described housing section is the chamfering of 5 °～30 °.Like this, mouth-sealed portion thickens in the mode thickening to shell body interior, has both met the thickness of seal location, makes again shell body easily manufactured.Junction is chamfering structure, mouth-sealed portion is connected more smooth with housing section, and then strengthens the intensity of connecting portion, meanwhile, also makes battery case have certain aesthetic property.
Preferably, the large 0.3～0.8mm of thickness of housing section described in the Thickness Ratio of described mouth-sealed portion, described reinforcement with the gross thickness of described housing section than the large 0.2～1mm of the thickness of described mouth-sealed portion.Experimental data shows, such thickens the requirement of strength that numerical value is enough to meet lithium battery casing, is unlikely to again to occur because thickening the excessive situation that causes energy content of battery density to reduce of numerical value.
Preferably, the height of described mouth-sealed portion is 5～15mm, and the width of described reinforcement is 5～20mm.Experimental data shows, this height and width are enough to meet the requirement of strength of lithium battery casing, can avoid again height or width excessive and cause the reduction of energy content of battery density.
Preferably, described shell body be shaped as cuboid, the described reinforcement of the front surface of described shell body is provided with a hemispheric projection, the described reinforcement of the rear surface of described shell body be provided with one with the suitable hemispheric depression of described projection, described projection with described in to be recessed in height on described shell body identical, described projection is identical with the transverse width of the same side of the described shell body of described depression distance.Like this, when plural lithium battery uses in groups, the projection of lithium battery below can match with the depression of lithium battery above, is convenient to the location of putting of lithium battery, also makes more compact structure, improves the volume utilization of Battery case.
Preferably, the lateral separation of the left surface of described projection and described shell body be described shell body front surface width 1/15～1/6, the distance of described projection and described shell body bottom surface be described shell body height 1/5～1/2.Equally, depression and the lateral separation of shell body left surface be shell body front surface width 1/15～1/6, depression is 1/5～1/2 of shell body height with the distance of shell body bottom surface.Experimental data shows, projection and depression are positioned at aforesaid position, make to locate more convenient.
Preferably, the radius of described projection is 0.2～5mm, and the radius of described depression is 0.2～5mm.Experimental data shows, projection and depression are of a size of aforesaid numerical value, both can avoid oversize and affects battery case structure, can avoid again undersized and cannot reach the effect of location.
Preferably, the two ends of described reinforcement are the chamfering of 5 °～30 °.The end of reinforcement adopts chamfering structure, can avoid in the time carrying or assemble, damaging to user because reinforcement is too sharp, also has certain aesthetic property simultaneously.
Positive progressive effect of the present invention is: can make the heat producing in battery use procedure discharge in time, avoid battery temperature too high and affect the performance of battery performance; Can make battery seal position have enough melting areas, allow battery strength be increased; Can make energy content of battery density be improved, and reduce the production cost of battery.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the embodiment of the present invention 1.
Fig. 2 is the front elevational schematic of the embodiment of the present invention 1.
Fig. 3 is A-A cross-sectional schematic in Fig. 2.
Fig. 4 is the B part enlarged diagram in Fig. 3.
Fig. 5 is the state diagram while using the lithium battery of the embodiment of the present invention 1 to use in groups.
Fig. 6 is the front elevational schematic of the embodiment of the present invention 2.
Fig. 7 is C-C cross-sectional schematic in Fig. 6.
Fig. 8 is D part enlarged diagram in Fig. 7.
Embodiment
Lift two preferred embodiments below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of lithium ion battery case, it comprises shell body 1 and cap 2, shell body 1 is shaped as cuboid, the upper opening of shell body 1, shell body 1 and cap 2 adopt hot plate welding.Shell body 1 comprises mouth-sealed portion 11 and housing section 12, mouth-sealed portion 11 is the upper end of shell body 1, housing section 2 is adjacent to the bottom of mouth-sealed portion 11, the thickness of mouth-sealed portion 11 is greater than the thickness of housing section 12, the outer surface of housing section 12 is provided with multiple reinforcements 13, reinforcement 13, along longitudinally projection distribution of housing section 12, forms groove between two adjacent reinforcements 13, and mouth-sealed portion 11, housing section 12 and reinforcement 13 are one-body molded.
The outer surface of mouth-sealed portion is the flat surface structure without reinforcement, and the internal face of mouth-sealed portion 11 flushes with the internal face of housing section 12, and the junction of the outside wall surface of the outside wall surface of mouth-sealed portion 11 and housing section 12 is 10 ° of chamferings.The two ends of reinforcement 13 are 5 ° of chamferings.Mouth-sealed portion 11 thickness are 5.5mm, and housing section 12 thickness are 5.2mm, the large 0.3mm of thickness of the Thickness Ratio housing section 12 of mouth-sealed portion 11.Reinforcement 13 thickness are 0.8mm, reinforcement 13 with the gross thickness of housing section 12 than the large 0.5mm of the thickness of mouth-sealed portion 11.The height of mouth-sealed portion 11 is 10mm, and the width of reinforcement 13 is 10mm.
When lithium ion battery uses in groups, generally adopt wind-cooling heat dissipating mode.Groove between adjacent reinforcement, for heat radiation provides vent passages, can discharge the heat producing in battery use procedure in time, avoids battery temperature too high and affect the performance of battery performance.
The reinforcement of housing section outer surface can also increase the intensity of shell body.The thickness of the Thickness Ratio housing section of mouth-sealed portion is large, has guaranteed the thickness of seal location, and make has enough melting areas in the time that battery cover seals housing, allows battery strength be increased.Due to the thickness without increasing again housing section, therefore, energy content of battery density is improved, and has reduced the production cost of battery.
Mouth-sealed portion thickens in the mode thickening to shell body exterior, has both met the thickness of seal location, makes again shell body easily manufactured.Junction is chamfering structure, mouth-sealed portion is connected more smooth with housing section, and then strengthens the intensity of connecting portion.Meanwhile, also make battery case there is certain aesthetic property.The end of reinforcement adopts chamfering structure, can avoid in the time carrying or assemble, damaging to user because reinforcement is too sharp, also has certain aesthetic property simultaneously.
It is one hemispheric protruding 14 that the reinforcement 13 of the front surface of shell body 1 is provided with, and the reinforcement 13 of the rear surface of shell body 1 is provided with the hemispheric depression suitable with projection 14 (not showing on figure).Projection 14 is with to be recessed in height on shell body 1 identical, be with the lateral separation of the left surface of shell body 1 be shell body front surface width 1/6; Projection 14 and depression apart from the distance of shell body 1 bottom surface be shell body 1 height 1/2.The spherical radius of projection 14 is 1.5mm, and the spherical radius of depression is 1.5mm.On this basis, a depression 15 can be set on the reinforcement of the front surface of shell body again, on the reinforcement of the rear surface of shell body, arrange again one with the suitable projection (not showing on figure) of this depression 15.As shown in Figure 5, in the time that plural lithium battery 20 uses in groups, the projection of lithium battery below can match with the depression of lithium battery above, after the depression of lithium battery can match with the projection of lithium battery above.Like this, be convenient to the location of putting of lithium battery, also make more compact structure, improve the volume utilization of Battery case.
Lithium ion battery case of the present invention can make the heat producing in battery use procedure discharge in time, avoids battery temperature too high and affect the performance of battery performance; Can make battery seal position have enough melting areas, allow battery strength be increased; Can make energy content of battery density be improved, and reduce the production cost of battery.
As shown in Fig. 6, Fig. 7 and Fig. 8, the lithium ion battery case of the present embodiment is compared with embodiment 1, difference is: the outside wall surface of mouth-sealed portion 11 flushes with the outside wall surface of housing section 12, the junction of the internal face of the internal face of mouth-sealed portion 11 and housing section 12 is 10 ° of chamferings, the two ends of reinforcement 13 are 10 ° of chamferings, the spherical radius of projection 14 is 1mm, and the spherical radius of depression is 1mm.In addition, other structures of the present embodiment are all identical with embodiment 1, just repeat no more at this.
Like this, mouth-sealed portion thickens in the mode thickening to shell body interior, has both met the thickness of seal location, makes again shell body easily manufactured.Junction is chamfering structure, mouth-sealed portion is connected more smooth with housing section, and then strengthens the intensity of connecting portion, meanwhile, also makes battery case have certain aesthetic property.Projection and depression are of a size of aforementioned numerical value, both can avoid oversize and affect battery case structure, can avoid again undersized and cannot reach the effect of location.
In addition, other beneficial effects of the present embodiment are identical with embodiment 1, just repeat no more at this.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection scope of the present invention.
Claims (9)
1. a lithium ion battery case, it comprises a shell body, the upper opening of described shell body, it is characterized in that, described shell body comprises a mouth-sealed portion and a housing section, described mouth-sealed portion is the upper end of described shell body, described housing section is adjacent to the bottom of described mouth-sealed portion, the thickness of described mouth-sealed portion is greater than the thickness of described housing section, the outer surface of described housing section is provided with multiple reinforcements, described reinforcement is along the longitudinally projection distribution of described housing section, between two adjacent described reinforcements, form a groove, described mouth-sealed portion, described housing section and described reinforcement are one-body molded.
2. lithium ion battery case as claimed in claim 1, is characterized in that, the internal face of described mouth-sealed portion flushes with the internal face of described housing section, and the junction of the outside wall surface of described mouth-sealed portion and the outside wall surface of described housing section is the chamfering of 5 °～30 °.
3. lithium ion battery case as claimed in claim 1, is characterized in that, the outside wall surface of described mouth-sealed portion flushes with the outside wall surface of described housing section, and the junction of the internal face of described mouth-sealed portion and the internal face of described housing section is the chamfering of 5 °～30 °.
4. lithium ion battery case as claimed in claim 1, is characterized in that, the large 0.3～0.8mm of thickness of housing section described in the Thickness Ratio of described mouth-sealed portion, described reinforcement with the gross thickness of described housing section than the large 0.2～1mm of the thickness of described mouth-sealed portion.
5. lithium ion battery case as claimed in claim 4, is characterized in that, the height of described mouth-sealed portion is 5～15mm, and the width of described reinforcement is 5～20mm.
6. lithium ion battery case as claimed in claim 1, it is characterized in that, described shell body be shaped as cuboid, the described reinforcement of the front surface of described shell body is provided with a hemispheric projection, the described reinforcement of the rear surface of described shell body be provided with one with the suitable hemispheric depression of described projection, described projection with described in to be recessed in height on described shell body identical, described projection is identical with the transverse width of the same side of the described shell body of described depression distance.
7. lithium ion battery case as claimed in claim 6, it is characterized in that, the lateral separation of the left surface of described projection and described shell body be described shell body front surface width 1/15～1/6, the distance of described projection and described shell body bottom surface be described shell body height 1/5～1/2.
8. lithium ion battery case as claimed in claim 7, is characterized in that, the radius of described projection is 0.2～5mm, and the radius of described depression is 0.2～5mm.
9. lithium ion battery case as claimed in claim 1, is characterized in that, the two ends of described reinforcement are the chamfering of 5 °～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163060.5A CN103904255B (en) | 2014-04-22 | 2014-04-22 | Lithium ion battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163060.5A CN103904255B (en) | 2014-04-22 | 2014-04-22 | Lithium ion battery case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904255A true CN103904255A (en) | 2014-07-02 |
| CN103904255B CN103904255B (en) | 2017-03-29 |
Family
ID=50995487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410163060.5A Expired - Fee Related CN103904255B (en) | 2014-04-22 | 2014-04-22 | Lithium ion battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103904255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157801A (en) * | 2014-08-11 | 2014-11-19 | 青岛大学 | Battery case with self-positioning and heat exchange enhancing functions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753205A (en) * | 2004-09-21 | 2006-03-29 | 三星Sdi株式会社 | Secondary battery and secondary battery module with the same |
| CN201146203Y (en) * | 2008-01-09 | 2008-11-05 | 比亚迪股份有限公司 | Battery cover plate and battery |
| US20090233161A1 (en) * | 2008-03-13 | 2009-09-17 | Miyamae Ichiro | Battery pack provided with outer casing |
| CN102760909A (en) * | 2012-07-17 | 2012-10-31 | 李永康 | Power battery and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201608210U (en) * | 2009-12-21 | 2010-10-13 | 潍坊威能环保电源有限公司 | Lithium-ion battery shell |
-
2014
- 2014-04-22 CN CN201410163060.5A patent/CN103904255B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753205A (en) * | 2004-09-21 | 2006-03-29 | 三星Sdi株式会社 | Secondary battery and secondary battery module with the same |
| CN201146203Y (en) * | 2008-01-09 | 2008-11-05 | 比亚迪股份有限公司 | Battery cover plate and battery |
| US20090233161A1 (en) * | 2008-03-13 | 2009-09-17 | Miyamae Ichiro | Battery pack provided with outer casing |
| CN102760909A (en) * | 2012-07-17 | 2012-10-31 | 李永康 | Power battery and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157801A (en) * | 2014-08-11 | 2014-11-19 | 青岛大学 | Battery case with self-positioning and heat exchange enhancing functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103904255B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2015518233A5 (en) | ||
| GB2418058A (en) | Battery Pack | |
| CN103904255A (en) | Lithium ion battery case | |
| CN202127047U (en) | Square plastic shell of heat-dissipating type lithium battery | |
| CN103996805A (en) | Aluminum alloy battery box | |
| CN202183419U (en) | Square aluminum power battery shell | |
| CN108598599A (en) | Lead-acid accumulator bottom case reinforced structure | |
| CN207233832U (en) | A kind of combined storage battery plastic housing | |
| CN103515552A (en) | Anti-leakage storage battery cover | |
| CN202887994U (en) | Explosion-proof aluminum housing for electrolytic condenser | |
| CN104868063A (en) | Novel reinforcing rib expansion prevention battery housing | |
| CN202474074U (en) | Lead-acid battery tank | |
| CN103996804A (en) | Novel battery box structure | |
| CN207993907U (en) | A kind of accumulator box | |
| CN205810888U (en) | A kind of rich solution power lead-acid storage battery lid | |
| CN203859170U (en) | Aluminum alloy battery box | |
| CN205609626U (en) | Cellular -type battery case | |
| CN201402827Y (en) | Storage battery cover | |
| CN202268396U (en) | Battery box | |
| CN207368017U (en) | Lead-acid accumulator housing reinforced structure | |
| CN215644824U (en) | Prevent bulging deformation's lead accumulator shell | |
| CN205564856U (en) | Welding formula heat dissipation battery case body | |
| CN206672975U (en) | A kind of high intensity battery cell case | |
| CN203859157U (en) | Novel battery box structure | |
| CN202817038U (en) | Storage battery casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191227 Address after: 300480 No. 20 North Mount Huangshan Road, Tianjin Binhai New Area, Hangu, China Patentee after: Sinopoly Battery Ltd. Address before: 300450 No. 20 North Mount Huangshan Road, Tianjin Binhai New Area, Hangu, China Patentee before: TIANJIN SINOPOLY NEW ENERGY TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |