CN101079501A - A secondary liquid lithium ion cell structure - Google Patents
A secondary liquid lithium ion cell structure Download PDFInfo
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- CN101079501A CN101079501A CNA2006100809651A CN200610080965A CN101079501A CN 101079501 A CN101079501 A CN 101079501A CN A2006100809651 A CNA2006100809651 A CN A2006100809651A CN 200610080965 A CN200610080965 A CN 200610080965A CN 101079501 A CN101079501 A CN 101079501A
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- lug
- pole
- brace
- lithium ion
- metal
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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
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- Filling, Topping-Up Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a secondary liquid lithium ion battery, which comprises the following parts: pole outlet on the periphery of battery, case welded at other places, lateral hole on two sides of the inlet, wherein the lateral hole is opened at two sides of pole ear of pole piece; the pole ear connecting piece with central hole is set on the pole; the pole ear connecting piece is inserted in the pole ear group; the pole ear press is set on two external sides of pole ear; the fixing hole of the pole ear press faces the through-hole of the pole ear; the fixing piece fixes the pole ear press and pole ear on the pole connecting piece; a seal elastic body is placed in the case welding edge; the tightening case is loaded on the case within metal case piece; the tightening piece fixes the tightening case, case metal piece, seal elastic body and pole together; the roof of pole is solid column and others are hollow metal columns; the injecting hole is opened at longitude side of metal column, which interconnects the hollow segment of anode and cathode; the injecting hole exposes out of the inlet. The battery possesses light weight to improve energy density, which shortens the manufacturing period and saves cost to make the unopened mould.
Description
Technical field
The present invention relates to a kind of liquid lithium ion cell structure, particularly relate to a kind of be used for the large capacity single body, have low-resistance secondary liquid lithium ion battery.
Background technology
Be widely used at present a kind of secondary liquid lithium ion battery on gamma camera, mine lamp and the uninterrupted power supply etc., the general metal circle or square that adopts of the housing of its battery, just/negative terminal is to adopt aluminium/copper to become, no matter the housing of battery is circular or square, all wants first die sinking tool just can make when making housing.Existing simultaneously battery container thickness is all more than 0.3mm, therefore increased the weight of battery weight, reduced the energy density of battery again, the die sinking tool will spend a large number of expense that main is and time (with as take about 2 months or the longer time), both increased cost, extended manufacture cycle again.On the existing in addition liquid battery container three openings are arranged, a plurality of openings are unfavorable for cell sealing, cause battery leakage easily.The structure of the positive and negative terminals of existing simultaneously battery since lug and pole fix with plain screw or nut; this connected mode usually can cause the stressed big shortcoming of contact resistance that exists inadequately between lug and the pole brace; in use can be clashed into or be vibrated with battery and easily cause nut to get loose, cause battery to open circuit.Only adopt the riveted and fixed mode, though this mode above-mentioned mechanical problem can not occur, but usually cause the brace distortion, and be unfavorable for the installation and the stable performance of battery, the present invention adopts the riveted joint of lug disease lug brace simultaneously lug brace and lug connected body by riveted joint or with screw and execute and must fix by firm nut, has obeyed connection and the big problem of resistance quarter.
Summary of the invention
The objective of the invention is to: overcome the defective that exists on the above-mentioned existing battery structure; Thereby provide a kind of have low-resistance, with short production cycle, stable processing technique, dependable performance and be suitable for the secondary liquid lithium ion battery that mechanization is produced.
The object of the present invention is achieved like this:
The invention provides a kind of secondary liquid lithium ion battery, comprising: a housing 1, positive terminal 2, negative terminal 3 are installed, pole piece group and electrolyte that positive plate 4, negative plate 5 and barrier film are therebetween formed in this housing 1; It is characterized in that: also comprise a conduction fastening structure of forming by lug 6, lug brace 7 and lug compressing tablet 8; One seal structure for casing of forming by sealing elastomer 9, metal shell sheet 10 and adapter sleeve 11;
Described housing 1 is the peripheral outlet that leaves positive terminal 2, negative terminal 3, the metal-back of all the other local seal weldings, and described outlet both sides have side opening 12;
Described lug compressing tablet 8 semicirculars in shape or cap shape, two ends have the sheet metal of fixing hole;
On described positive terminal 2, the negative terminal 3 lug brace 7 is arranged, on this lug brace 7 centre bore 13 is arranged;
Described positive plate 4, negative plate 5 top edges are provided with lug 6, these lug 6 both sides have side opening 16, lug group both sides in described pole piece group respectively are provided with described lug compressing tablet 8, in the middle of the lug group, embed lug brace 7, the fixing hole of described lug compressing tablet 8 and the lug side opening 16 on the lug over against, one fixture 15 passes the fixing hole of lug compressing tablet 8 both sides and the lug side opening 16 on the lug 6, and lug 6 is fixed on the lug brace 7 tightly;
Described sealing elastomer 9, adapter sleeve 11 semicirculars in shape or cap shape, both sides have adapter sleeve side opening 17; Sealing elastomer 9 is put in housing 1 welding edge, the side opening 12 that makes adapter sleeve side opening 17 and housing outlet both sides on the described sealing elastomer 9 over against, and respectively install an adapter sleeve 11 additional in the outside of described housing 1, described metal shell sheet 10 is set between described adapter sleeve 11 and sealing elastomer 9, with first securing member 14 adapter sleeve 11, housing sheet metal 10, sealing elastomer 9 and positive terminal 2, negative terminal 3 are fixed together, so that two poles 2,3 of battery are insulated and cell sealings;
External conductive connection for battery, with described positive terminal 2, the top design of negative terminal 3 is a solid cylinder, remainder is the metal cartridge of hollow, radially have liquid injection hole 19 in metal column one side, described liquid injection hole with just/negative terminal hollow section 18 is communicated with, its hollow section 18 inserts in the housing 1, described solid cylinder part is exposed at outside the outlet by outlet, comprise that liquid injection hole 19 is exposed at outside the outlet, by positive terminal 2,19 pairs of battery liquid-fillings of the liquid injection hole of the side of negative terminal 3, after fluid injection finishes, at positive terminal 2, the liquid injection hole 19 outer safety elastic covers 20 that put the electrolyte resistance corrosion of negative terminal 3, or the safety relief valve that is used for cell sealing is installed.
In above-mentioned technical scheme, when the battery of making other for example during Vehicular battery, just need be when fixedly lug 6 be with lug brace 7, also comprise one second securing member 21, at lug 6 center drillings, the centre bore 13 of lug brace 7 is relative with lug 6 center drillings, fixing with 21 perforation of second securing member, for example adopting screw and execute must firm nut assembly, or riveting parts.
In above-mentioned technical scheme, described lug brace 7 and lug 6 are one, or by fixture 21 that lug 6 is fixing with lug brace 7.
In above-mentioned technical scheme, described positive terminal 2 and lug brace 7 are metal copper sheet or silver strip, at the metal film of the some or all of covering last layer 0.005-0.1mm of copper/galactic pole post and copper/galactic pole post brace, described metal film comprises mock silver, tin zinc bismuth alloy, tin indium bismuth alloy, aluminium Gallium alloy, alumin(i)um zinc alloy, aluminium germanium alloy, sn-bi alloy or tin, aluminium, zinc, gallium, indium.
In above-mentioned technical scheme, stainless steel substrates or iron plate, Copper Foil/copper sheet of 0.02mm-0.5mm or the aluminium flake of 0.05mm-0.8mm that described housing 1 employing thickness is 0.02mm-0.3mm are made.
In above-mentioned technical scheme, described sealing elastomer 9 and corrosion-resistant elastic overcoat 20 comprise ethylene-propylene rubber, fluorubber, super/sheet material of low density polyethylene (LDPE), polyamine fat or special silica-gel very.
In above-mentioned technical scheme, described positive terminal 2, negative terminal 3 top solid cylinder part profiles are cylindrical, elliptical cylinder-shape, the cake cylindricality that middle high both sides are thin, flat cylindricality or square column type.
In above-mentioned technical scheme, the hole of opening on the described lug compressing tablet 8 can also can be the flat ellipse garden shape metallic sheath that has six holes for what separate.
In above-mentioned technical scheme, fixture (15), the one the first securing members (14), second securing member (21) comprise screw and execute must firm nut assembly, or riveting parts.
The invention has the advantages that:
1. the housing of liquid battery of the present invention is to adopt foil, reduces the thickness of battery case, and then has reduced the weight of battery, has improved the energy density of battery.
2. need not only by foil surrounding welded seal is fixed, the hull shape of battery be processed by requirement of client to the housing die sinking tool of battery, shorten the expense of production cycle and flexibility and saving die sinking tool widely.
3. just/negative terminal adopts the hollow metal cartridge of part of a hull outside perforate, has the structure of the liquid injection hole that communicates with the centre bore of positive and negative terminals on its sidewall, make its just/negative terminal has fluid injection, safety valve and conducting function; And have only 2 perforates on the housing of battery, also reduce the probability of leakage.
4. by to the riveted joint of lug and pole brace, also by screw and execute must firm nut or riveted joint push, lug is reduced with the resistance that is connected between pole.
5. avoid the positive terminal and the pole brace of lithium ion battery to adopt all defectives that aluminium brought, reduced the resistance of positive terminal and pole brace widely and increased intensity, make the connection between the battery more convenient, simplified battery manufacturing process.
Description of drawings
Fig. 1 a is a battery structure cut-away section schematic diagram of the present invention;
Fig. 1 b is the schematic diagram of seal structure for casing part A-A section of being made up of sealing elastomer, metal shell sheet and adapter sleeve of the present invention;
The schematic diagram of Fig. 1 c conduction fastening structure part B-B section that to be the present invention be made up of lug, lug brace and lug compressing tablet;
The drawing explanation
1-housing 2-positive terminal 3-negative terminal
4-positive plate 5-negative plate 6-lug
7-lug brace 8-lug compressing tablet 9-sealing elastomer
10-metal shell sheet 11-adapter sleeve 12-outlet side opening
13-centre bore 14-securing member 15-fixture
16-fixing hole 17-adapter sleeve side opening 18-hollow section
19-liquid injection hole 20-safety elastic cover 21-second securing member
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail:
Embodiment 1
Press Fig. 1 a structure fabrication one secondary liquid lithium ion battery, it is the Copper Foil making of 0.08mm that the housing 1 of battery adopts thickness, perhaps for example adopting thickness is that the aluminium flake of the Copper Foil/copper sheet of the stainless steel substrates of 0.02mm-0.3mm or iron plate, 0.02mm-0.5mm or 0.05mm-0.8mm is all passable, with its both sides, folding back seal welding together, periphery leaves the outlet of positive terminal 2, negative terminal 3 then, all the other places also seal weld are connected into metal-back, and have side opening 12 on described outlet both sides.
The lug compressing tablet 8 of present embodiment adopts semicircle copper sheet, or cap shape also can, similar clip has fixing hole on the extension of clip.
The positive terminal 2 or the negative terminal 3 of the copper column production that it is 3mm that present embodiment adopts a diameter, the nearly 18mm of one end is solid section, the profile of this solid cylinder part is cylindrical, also can adopt other shape, elliptical cylinder-shape for example, the thin cake cylindricality in middle high both sides, flat cylindricality or square column type, the shape of employing determines according to battery use; The positive terminal 2 that this copper post that is coated with the tin bismuth film of 0.04 millimeters thick is done or the remainder of negative terminal 3 are hollow copper post, the lug brace 7 of its pole bottom and copper is an one, the connected mode of one can for by the riveted joint, weld or execute and must fix by firm nut, perhaps one-time formed, on this lug brace 7 centre bore 13 is arranged; And thickness is the sn-bi alloy of 0.04mm on positive terminal 2 its surface-coated of copper.A liquid injection hole 19 that is used to inject electrolyte, (also can radially open liquid injection hole 19) that this liquid injection hole 19 is radially opened at negative terminal 3 sidewalls at negative terminal 3 sidewalls, when the elastic overcoat 20 that on the liquid injection hole 19 of the intact back of fluid injection, is with electrolyte resistance corrosion, promptly adopt the safety elastic cover of the valve inside of low-density polyethylene material bicycle making, similar anti-dress of buy on the market super/very.
Shown in figure 1c, described positive plate 4, negative plate 5 top edges are provided with lug 6,10 millimeters of lug 6 its width, and these lug 6 both sides have lug side opening 16,3.1 millimeters of its diameters.Present embodiment adopts the pole piece group that 10 (one group of requirement of specifically adopting how many lugs to be decided by the made battery) are arranged, the lug 6 of 10 pole piece groups overlaps, one described thickness respectively be set be 3 millimeters aluminium or copper polar ear compressing tablet 8 on lug group two outer walls, this lug compressing tablet 8 is several word shapes of class, have fixing hole on its extension, the aperture of this fixing hole is 3.1 millimeters; In the middle of the lug group, embed lug brace 7, the fixing hole of described lug compressing tablet 8, with lug side opening 16 on the lug over against, one fixture, 15 use diameters are 3 millimeters rivet, rivet passes the fixing hole of lug compressing tablet 8 both sides and the lug side opening 16 on the lug 6, use riveted and fixed then, lug 6 is fixed on the lug brace 7 tightly.
When the battery of making other for example during Vehicular battery, just need be when fixedly lug 6 be with lug brace 7, also comprise one second securing member 21, at lug 6 center drillings, the centre bore of the centre bore 13 of lug brace 7, lug compressing tablet 8 is relative with lug 6 center drillings, fixing with the perforation of second securing member 21, for example adopting screw and execute must firm nut assembly, or riveting parts.
Shown in figure 1b, it is that 1 millimeter or thickness are 1.5 millimeters fluorubber that the sealing elastomer 9 of electrolyte resistance corrosion adopts thickness, makes the semicircle that two ends have extension or the clip of cap shape, has the hole on the extension of clip both sides; It is the stainless steel making of 2mm that adapter sleeve 11 adopts thickness, and its semicircular in shape or cap shape have adapter sleeve side opening 17 on the extension at two ends; Sealing elastomer 9 can also be with super/very low density polyethylene (LDPE), polyamine fat material.Sealing elastomer 9 is put in housing 1 welding edge, the side opening 12 that makes adapter sleeve side opening 17 and housing outlet both sides on the described sealing elastomer 9 over against, and on two outer walls of described housing 1, respectively install an adapter sleeve 11 additional, described metal shell sheet 10 is set between described adapter sleeve 11 and sealing elastomer 9, first securing member, 14 employing diameters are 3 millimeters rivet, with securing member 14 with adapter sleeve 11, housing sheet metal 10, sealing elastomer 9 and positive terminal 2, negative terminal 3 is fixed together, so that to the insulation of two poles of battery with carry out cell sealing.
External conductive connection for battery, adopt Fig. 1 a and 1b structure fabrication one battery structure of the present invention, the structure of this embodiment is identical with embodiment 1, different is: with described positive terminal 2, negative terminal 3 adopts stainless steel material to make, the top design of this pole is a solid cylinder, remainder is the stainless steel cylinder of hollow, radially have liquid injection hole 19 in stainless steel column one side, its liquid injection hole 19 diameters are 2.1 millimeters, described liquid injection hole with just/to be communicated with its aperture be 2 to the hollow section 18 of negative terminal, 2 millimeters, its hollow section 18 inserts in housings 1, contacts with electrolyte in the battery; Described liquid injection hole 19 is exposed at outside the outlet of housing, 19 pairs of battery liquid-fillings of liquid injection hole of side by positive terminal 2, negative terminal 3, after fluid injection finishes, outside the liquid injection hole 19 of positive terminal 2, negative terminal 3, put safety elastic material sleeve 20, these safety elastic material sleeve 20 employing electrolyte resistances corrode, thickness is 1.5 millimeters ethylene-propylene rubber material, is used for cell sealing and safety relief valve.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: structure of the present invention is made amendment or is equal to replacement, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. a secondary liquid lithium ion battery comprises: a housing (1), installation positive terminal (2), negative terminal (3) in this housing (1), pole piece group and electrolyte that positive plate (4), negative plate (5) and barrier film are therebetween formed; It is characterized in that: also comprise a conduction fastening structure of forming by lug (6), lug brace (7) and lug compressing tablet (8); One seal structure for casing of forming by sealing elastomer (9), metal shell sheet (10) and adapter sleeve (11);
Described housing (1) leaves the outlet of positive terminal (2), negative terminal (3) for periphery, the metal-back of all the other local seal weldings, and described outlet both sides have side opening (12);
Have the sheet metal of fixing hole on described lug compressing tablet (8) semicircular in shape or extension cap shape, two ends;
On described positive terminal (2), the negative terminal (3) lug brace (7) is arranged, have centre bore (13) on this lug brace (7);
Described positive plate (4), negative plate (5) top edge are provided with lug (6), this lug (6) both sides have lug side opening (16), lug two outer walls in described pole piece group respectively are provided with described lug compressing tablet (8), in the middle of the lug group, embed lug brace (7), the fixing hole of described lug compressing tablet (8) and the lug side opening (16) on the lug over against, one fixture (15) passes the fixing hole of lug compressing tablet (8) both sides and the lug side opening (16) on the lug (6), and lug (6) is fixed on the lug brace (7) tightly;
Described sealing elastomer (9), adapter sleeve (11) semicircular in shape or cap shape have adapter sleeve side opening (17) on the extension at two ends; Sealing elastomer (9) is put in housing (1) welding edge, the side opening (12) that makes adapter sleeve side opening (17) and housing outlet both sides on the described sealing elastomer (9) over against, and the outer wall at described housing (1) respectively installs an adapter sleeve (11) additional, between described adapter sleeve (11) and sealing elastomer (9), described metal shell sheet (10) is set, adapter sleeve (11), housing sheet metal (10), sealing elastomer (9) and positive terminal (2), negative terminal (3) is fixed together with first securing member (14);
The top of described positive terminal (2), negative terminal (3) is a solid cylinder, remainder is the metal cartridge of hollow, radially have liquid injection hole (19) in metal column one side, described liquid injection hole (19) is communicated with hollow section (18), its hollow section (18) inserts in the housing (1), described solid cylinder part is exposed at outside the outlet by outlet, outside the liquid injection hole (19) of positive terminal (2), negative terminal (3), put corrosion resistant safety elastic cover (20), or installation is used for the cell sealing safety relief valve.
2. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: also comprise second securing member (21), at described lug (6) center drilling, the centre bore (13) of lug brace 7 is relative with lug (6) center drilling, fixing with second securing member (21) perforation.
3. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: described lug brace (7) and lug (6) be for one, or by fixture (21) that lug (6) and lug brace (7) is fixing.
4. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: described positive terminal (2) and lug brace (7) are metal copper sheet or silver strip, at the metal film of the some or all of covering last layer 0.005-0.1mm of copper/galactic pole post and copper/galactic pole post brace, described metal film comprises mock silver, tin zinc bismuth alloy, tin indium bismuth alloy, aluminium Gallium alloy, alumin(i)um zinc alloy, aluminium germanium alloy, sn-bi alloy or tin, aluminium, zinc, gallium, indium.
5. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: described housing (1) employing thickness is that stainless steel substrates or iron plate, Copper Foil/copper sheet of 0.02mm-0.5mm or the aluminium flake of 0.05mm-0.8mm of 0.02mm-0.3mm made.
6. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: described sealing elastomer (9) and safety elastic overcoat (20) comprise ethylene-propylene rubber, fluorubber, super/very low density polyethylene (LDPE), polyamine fat or silica gel material.
7. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: described positive terminal (2), negative terminal (3) top solid cylinder part profile are cylindrical, elliptical cylinder-shape, the cake cylindricality that middle high both sides are thin, flat cylindricality or square column type.
8. by the described secondary liquid lithium ion battery of claim 1, it is characterized in that: the hole of opening on the described lug compressing tablet (8) is what separate, or has the flat ellipse garden shape metallic sheath in six holes.
9. by claim 1 or 2 described secondary liquid lithium ion batteries, it is characterized in that: described fixture (15), first securing member (14), second securing member (21) comprise screw and execute must firm nut assembly, or riveting parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100809651A CN101079501A (en) | 2006-05-26 | 2006-05-26 | A secondary liquid lithium ion cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100809651A CN101079501A (en) | 2006-05-26 | 2006-05-26 | A secondary liquid lithium ion cell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101079501A true CN101079501A (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100809651A Pending CN101079501A (en) | 2006-05-26 | 2006-05-26 | A secondary liquid lithium ion cell structure |
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| CN (1) | CN101079501A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130218A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Maintainable lithium-ion battery and maintenance method thereof |
| WO2010130220A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery |
| CN101964409A (en) * | 2010-09-01 | 2011-02-02 | 朝阳立塬新能源有限公司 | Explosion-proof structure of energy-storing device |
| CN102097602A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN102097603A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN106410070A (en) * | 2016-11-28 | 2017-02-15 | 东莞市振华新能源科技有限公司 | Injection hole structure capable of improving thermal shock test of square lithium ion battery |
| CN112531294A (en) * | 2020-12-21 | 2021-03-19 | 常德中科多源电力融合技术研究院 | Soft package lithium ion battery tab connecting piece and connecting method |
-
2006
- 2006-05-26 CN CNA2006100809651A patent/CN101079501A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130218A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Maintainable lithium-ion battery and maintenance method thereof |
| WO2010130220A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery |
| CN101964409A (en) * | 2010-09-01 | 2011-02-02 | 朝阳立塬新能源有限公司 | Explosion-proof structure of energy-storing device |
| CN101964409B (en) * | 2010-09-01 | 2013-03-27 | 朝阳立塬新能源有限公司 | Explosion-proof structure of energy-storing device |
| CN102097602A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN102097603A (en) * | 2011-01-12 | 2011-06-15 | 合肥国轩高科动力能源有限公司 | Lithium ion battery cover plate |
| CN106410070A (en) * | 2016-11-28 | 2017-02-15 | 东莞市振华新能源科技有限公司 | Injection hole structure capable of improving thermal shock test of square lithium ion battery |
| CN112531294A (en) * | 2020-12-21 | 2021-03-19 | 常德中科多源电力融合技术研究院 | Soft package lithium ion battery tab connecting piece and connecting method |
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