CN103296243A - Novel lithium ion power battery - Google Patents
Novel lithium ion power battery Download PDFInfo
- Publication number
- CN103296243A CN103296243A CN2012100402072A CN201210040207A CN103296243A CN 103296243 A CN103296243 A CN 103296243A CN 2012100402072 A CN2012100402072 A CN 2012100402072A CN 201210040207 A CN201210040207 A CN 201210040207A CN 103296243 A CN103296243 A CN 103296243A
- Authority
- CN
- China
- Prior art keywords
- negative
- clamping plate
- plate
- conductive coating
- anode ear
- 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
Images
Classifications
-
- 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 relates to a rechargeable battery, especially to a novel lithium ion power battery. The lithium ion power battery comprises a housing (1) and a laminated electrical core (16), wherein the laminated electrical core (16) is encapsulated inside the housing (1). Upside surfaces (901-1) of cathode ears (9-1-1) and cathode ear clamping plates (27-1) of cathodes (901) are coated with cathode conductive coating layers (2001), and the cathode conductive coating layers (2001) are conductive silver layers; and upside surfaces (1001-1) of anode ears (10-1-1) and anode ear clamping plates (27-2) of anodes (1001) are coated with anode conductive coating layers (2002), and the anode conductive coating layers (2002) are conductive silver layers or conductive aluminium layers. Contact resistance of the anode and cathode is decreased effectively, so that the service life of the battery is substantially prolonged, and the performance is improved.
Description
Technical field
The present invention relates to a kind of rechargeable battery, particularly a kind of new type lithium ion electrokinetic cell.The invention belongs to the electrokinetic cell field, being mainly used in the lithium-ion-power cell is the various hybrid automobiles of power source and pure electric automobile etc.
Background technology
At present the primary structure of lithium-ion-power cell has two kinds, and first kind is that rolled electric core is encapsulated in the formula that rolls lithium-ion-power cell in circle or the square shell.Second kind of lithium-ion-power cell structure is that the folded lamination electricity core that makes is encapsulated in laminated type lithium-ion-power cell in circle or the square shell.The lamination electricity core of this laminated type lithium-ion-power cell includes negative plate, positive plate and insulation diaphragm, negative plate and positive plate are successively alternately, separated by insulation diaphragm between negative plate and the positive plate, the arranged outside of outermost layer negative plate has insulation diaphragm, and these negative plates, positive plate and insulation diaphragm are according to ordering described above flat putting and stacking together layer by layer one by one.
A kind of lithium battery electrokinetic cell is disclosed as Chinese patent publication No. 101635370A, it comprises shell and lamination electricity core, shell is encapsulated in the outside of lamination electricity core, lamination electricity core includes negative plate, positive plate and insulation diaphragm, the both sides of the bottom of negative lug joint are provided with the lug clamping plate, negative plate is connected with the negative lug joint by the fixture that is through on the lug clamping plate, the both sides of positive pole ear joint bottom also are provided with the lug clamping plate, and positive plate is connected with the positive pole ear joint by the fixture that is through on the lug clamping plate.
The laminated type lithium-ion-power cell of above-mentioned existing lamination core strueture has following defective: extremely shown in Figure 8 referring to Fig. 6, because the negative electrode lug of all negative plate all is fixedly connected by first fixed connecting piece and the negative lug joint that is through on the negative electrode lug clamping plate, negative electrode lug, negative electrode lug clamping plate and negative lug joint are fixedlyed connected by first fixed connecting piece and are pressed together the formation negative pole; The anode ear of all positive plates all is fixedly connected by second fixed connecting piece and the positive pole ear joint that is through on the anode ear clamping plate, anode ear, anode ear clamping plate and positive pole ear joint by second fixed connecting piece fixedly connected be pressed together form anodal.This syndeton pattern is by compressing of fixed connecting piece the lug of pole piece to be connected with the contact of lug joint, then contact resistance is big for fixed connecting piece measuring phase difference, fixed connecting piece is pressed more tightly, be that measuring phase is more good, the lug of pole piece and lug joint contact resistance are more little, but exist contact resistance all the time, when the power lithium-ion battery heavy-current discharge, this contact resistance just can generate heat and influence the output of electric current, when the total power load is exported in actual use as electric automobile, battery temperature raises and to reach 60～75 ° of C, but also the heat that can influence electric in-core portion is by the outside heat conduction and heat radiation of lug joint.
Prior art can't effectively reduce above-mentioned contact resistance, will have a strong impact on discharging and recharging of both positive and negative polarity, has had a strong impact on the useful life of lithium-ion-power cell, and shortened the useful life of lithium-ion-power cell greatly, and the security reliability of battery is descended greatly.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of both positive and negative polarity contact resistance that effectively reduces is provided, make the good new type lithium ion electrokinetic cell of battery long service life and performance.
For realizing above-mentioned technical purpose, the present invention is by the following technical solutions: a kind of new type lithium ion electrokinetic cell, comprise shell and lamination electricity core, shell is encapsulated in the outside of lamination electricity core, shell is provided with breach, breach includes installing port and liquid injection port, negative lug joint and positive pole ear joint are fixed on the shell, negative lug joint top is negative terminals, positive pole ear joint top is positive terminal, negative terminals and positive terminal stretch out housing exterior by the installing port in the breach, lamination electricity core includes negative plate, positive plate and insulation diaphragm, negative plate and positive plate are successively alternately, separated by insulation diaphragm between negative plate and the positive plate, the outside of outermost layer pole piece also is provided with insulation diaphragm, two ends, the left and right sides all with negative plate as the outermost layer pole piece, the both sides of negative lug joint bottom are provided with the negative electrode lug clamping plate, the negative electrode lug of all negative plates all is fixedly connected by first fixed connecting piece and the negative lug joint that is through on the negative electrode lug clamping plate, negative electrode lug, negative electrode lug clamping plate and negative lug joint are fixedly connected to form negative pole by first fixed connecting piece, the both sides of positive pole ear joint bottom are provided with the anode ear clamping plate, the anode ear of all positive plates all is fixedly connected anode ear by second fixed connecting piece and the positive pole ear joint that is through on the anode ear clamping plate, anode ear clamping plate and positive pole ear joint are fixedly connected to form positive pole by second fixed connecting piece.Be coated with the negative pole conductive coating the two the end surfaces setting of upside of the negative electrode lug of described negative pole and negative electrode lug clamping plate, described negative pole conductive coating is conductive silver layer; Be coated with anodal conductive coating the two the end surfaces setting of upside of the anode ear of described positive pole and anode ear clamping plate, described anodal conductive coating is conductive silver layer or conduction aluminium lamination.
Further, also arrange on the two the end surfaces of the left and right sides of the negative electrode lug of described negative pole and negative electrode lug clamping plate and be coated with the negative pole conductive coating, described negative pole conductive coating is conductive silver layer.
Further, on the two the end surfaces of the left and right sides of the anode ear of described positive pole and anode ear clamping plate, also arrange and be coated with anodal conductive coating, described anodal conductive coating is conductive silver layer or conduction aluminium lamination, and it is identical that the anodal conductive coating of coating is set on the two the end surfaces of upside of the anodal conductive coating that coating is set on the two the end surfaces of the left and right sides of anode ear and anode ear clamping plate and anode ear and anode ear clamping plate.
Further, the negative pole conductive coating thickness that coating is set on the described negative pole is 10～20 um.
Further, the anodal conductive coating thickness that coating is set on the described positive pole is 10～20um.
Further, described negative plate is clipped between the negative electrode lug clamping plate, and positive plate is clipped between the anode ear clamping plate, has the through hole that allows first fixed connecting piece pass on the negative electrode lug clamping plate, has the through hole that allows second fixed connecting piece pass on the anode ear clamping plate.
Further, film and a slice Copper Foil that described negative plate is made by two graphite materials are formed, and Copper Foil is clamped between the film that two graphite materials make, and as negative electrode lug, and have the hole that allows first fixed connecting piece pass at this negative electrode lug on the Copper Foil.
Further, film and a slice aluminium foil that described positive plate is made by two LiFePO 4 materials are formed, aluminium foil is clamped between the film that two LiFePO 4 materials make, and the aluminium foil upper end is as anode ear, and has the hole that allows second fixed connecting piece pass at this anode ear.
Further, the film that described insulation diaphragm is made by film and a slice PE material of two PP materials making is formed, and the film that the PE material is made is clamped between the film of two PP materials making.
Further, described shell includes casing and cover plate, breach is opened on the cover board, breach also includes venting, post the safety anti-explosive film on the venting, the electronic mounting plate is housed below the cover plate, has down breach on the position corresponding with breach on the electronic mounting plate, following breach includes location and installation mouth, fluid injection port and explosion-proof through hole.
After adopting technique scheme, the present invention has following beneficial effect:
(1) the present invention is coated with the negative pole conductive coating the two the end surfaces setting of upside of the negative electrode lug of described negative pole and negative electrode lug clamping plate, and described negative pole conductive coating is conductive silver layer; Be coated with anodal conductive coating the two the end surfaces setting of upside of the anode ear of described positive pole and anode ear clamping plate, described anodal conductive coating is conductive silver layer or conduction aluminium lamination.The present invention is by arranging the negative pole conductive coating at the negative pole place, and it is as a whole that negative electrode lug, negative electrode lug clamping plate and negative lug joint three are connected into, and the contact resistance of negative pole reduces greatly, and the electric current temperature rise of negative pole reduces greatly; The present invention is by arranging anodal conductive coating at the positive pole place, and it is as a whole that anode ear, anode ear clamping plate and positive pole ear joint three are connected into, and anodal contact resistance reduces greatly, and anodal electric current temperature rise reduces greatly.This structure of the present invention has improved the performance of lithium-ion-power cell, and power output obviously increases, and the life-span that recycles of battery prolongs greatly, and the security reliability of battery is high.
(2) the present invention also arranges on the two the end surfaces of the left and right sides of the negative electrode lug of described negative pole and negative electrode lug clamping plate and is coated with the negative pole conductive coating, and described negative pole conductive coating is conductive silver layer.This structure further improves negative electrode lug, negative electrode lug clamping plate and negative lug joint three and connects into as a whole globality, the contact resistance of negative pole is reduced greatly, the electric current temperature rise of negative pole reduces greatly, further improved the performance of lithium-ion-power cell, power output increases more obvious, the life-span that recycles of battery prolongs greatly, and the security reliability of battery further improves.
(3) the present invention also arranges on the two the end surfaces of the left and right sides of the anode ear of described positive pole and anode ear clamping plate and is coated with anodal conductive coating, and described anodal conductive coating is conductive silver layer or conduction aluminium lamination.This structure further improves anode ear, anode ear clamping plate and positive pole ear joint three and connects into as a whole globality, anodal contact resistance is reduced greatly, anodal electric current temperature rise reduces greatly, further improved the performance of lithium-ion-power cell, power output increases more obvious, the life-span that recycles of battery prolongs greatly, and the security reliability of battery further improves.The present invention adopts the anodal conductive coating that coating is set on the two the end surfaces of upside of anodal conductive coating that coating is set on the two the end surfaces of the left and right sides of anode ear and anode ear clamping plate and anode ear and anode ear clamping plate identical in addition, this is because adopt identical anodal conductive coating material to make that coating is more convenient on anodal each end surfaces, and saves cost.
That (4) arrange on the negative pole of the present invention that the negative pole conductive coating thickness of coating adopts is 10～20 um, and this thickness had both made the present invention reach the optimum efficiency that reduces the negative pole contact resistance, had reduced cost again as far as possible, and cost performance is very high.
That (5) arrange on the positive pole of the present invention that the anodal conductive coating thickness of coating adopts is 10～20 um, and this thickness had both made the present invention reach the optimum efficiency that reduces anodal contact resistance, had reduced cost again as far as possible, and cost performance is very high.
Therefore, structure of the present invention makes both positive and negative polarity contact resistance of the present invention effectively reduce, and battery is prolonged useful life greatly, and makes performance of the present invention good, and cost performance is very high.And the lithium-ion-power cell temperature rise is little, is dropped to about 45 ° of C by 60～75 ° of C of temperature of prior art.Solved prior art insurmountable technical barrier always.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is A-A profile of Fig. 1;
Fig. 5 is B-B profile of Fig. 1;
Fig. 6 is the internal structure schematic diagram of the prior art of dismounting part 1 shell, part 26 battery case insulating cases and part 4 electronic mounting plates etc.;
Fig. 7 is the A place partial enlarged drawing of Fig. 6;
Fig. 8 is the B place partial enlarged drawing of Fig. 6;
Fig. 9 is provided with the partial structurtes figure of the present invention of part 2001 negative pole conductive coatings for part 901 negative poles;
Figure 10 is provided with the partial structurtes figure of the present invention of part 2002 anodal conductive coatings for part 1001 positive poles;
Figure 11 is part 9 negative plate structural representations of the present invention;
Figure 12 is part 10 positive plate structural representations of the present invention;
Figure 13 is part 7 insulation diaphragm structural representations of the present invention;
Figure 14 is J-J cutaway view of Figure 11;
Figure 15 is K-K cutaway view of Figure 12;
Figure 16 is L-L profile of Figure 13;
Figure 17 is the structural representation of part 21 negative lug joints of the present invention and part 22 positive pole ear joints;
Figure 18 is the structural representation of part 27-1 negative electrode lug clamping plate of the present invention and part 27-2 positive pole ear clamping plate;
Figure 19 is the structural representation of part 26 battery case insulating cases of the present invention;
Figure 20 is part 1 shell upper part spare 3 structure of cover plate schematic diagrames of the present invention;
Figure 21 is the structural representation of part 4 electronic mounting plates of the present invention;
Figure 22 is the structural representation of part 1 shell lower face bulk-breaking 2 casings of the present invention.
Among the figure: 1, shell, 2, casing, 3, cover plate, 4, the electronic mounting plate, 4-1, boss, 5, adhesive tape, 7, insulation diaphragm, 7-1, the film that the PE material is made, 7-2, the film that the PP material is made, 9, negative plate, 9-1, Copper Foil, 9-1-1, negative electrode lug, 9-2, the film that graphite material is made, 9-3, the hole of opening on the negative electrode lug, 10, positive plate, 10-1, aluminium foil, 10-1-1, anode ear, 10-2, the film that LiFePO 4 material is made, 10-3, the hole of opening on the anode ear, 16, lamination electricity core, 17, breach, 17-1, installing port, 17-2, liquid injection port, 17-3, venting, 8, following breach, 18-1, the location and installation mouth, 18-2, the fluid injection port, 18-3, explosion-proof through hole, 19, the safety anti-explosive film, 20-1, first fixed connecting piece, 20-2, second fixed connecting piece, 21, the negative lug joint, 21-1, negative terminals, 21-2, connecting hole on the negative lug joint, 22, the positive pole ear joint, 22-1, positive terminal, 22-2, connecting hole on the positive pole ear joint, 23, rivet, 24, insulating washer, 25, hold-down nut, 26, the battery case insulating case, 27-1, the negative electrode lug clamping plate, 27-1-1, through hole on the negative electrode lug clamping plate, 27-2, the anode ear clamping plate, 27-2-1, through hole on the anode ear clamping plate, 901, negative pole, 901-1, the two the end surfaces of upside of negative electrode lug and negative electrode lug clamping plate, 901-2, the two the end surfaces of the left and right sides of negative electrode lug and negative electrode lug clamping plate, 1001, positive pole, 1001-1, the two the end surfaces of upside of anode ear and anode ear clamping plate, 1001-2, the two the end surfaces of the left and right sides of anode ear and anode ear clamping plate, 2001, the negative pole conductive coating, 2002, anodal conductive coating.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment one
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, comprise shell 1, electronic mounting plate 4 and lamination electricity core 16, also include the negative lug joint 21 of copper material making and the positive pole ear joint 22 that aluminium is made, also include rectangular negative electrode lug clamping plate 27-1 and anode ear clamping plate 27-2.Shell 1 adopts stainless steel material to make, heat radiation and anticorrosion effect are better like this, and shell 1 is encapsulated in the outside of electronic mounting plate 4 and lamination electricity core 16, and shell 1 includes casing 2 and cover plate 3, electronic mounting plate 4 is housed below the cover plate 3, and electronic mounting plate 4 is made by insulating material.Shell 1 is provided with breach 17, and breach 17 is opened on cover plate 3, and breach 17 includes two installing port 17-1 and a liquid injection port 17-2 and a venting 17-3, posts the safety anti-explosive film 19 that copper film is made on the venting 17-3.Have down breach 18 on the position corresponding with breach 17 on the electronic mounting plate 4, following breach 18 includes two location and installation mouth 18-1 and a fluid injection port 18-2 and an explosion-proof through hole 18-3.Liquid injection port 17-2 opens the side at cover plate 3, venting 17-3 opens in cover plate 3 central authorities, liquid injection port 17-2 opens in venting 17-3 both sides, liquid injection port 17-2 is just in time corresponding with fluid injection port 18-2 position, substitute the bad for the good in the shell 1 behind the electrolyte, rivet 23 rivetings are gone in the liquid injection port 17-2 above the fluid injection port 18-2 to seal.All have boss 4-1 above two location and installation mouth 18-1, two installing port 17-1 of the breach 17 on the cover plate 3 are enclosed within boss 4-1 outside.Negative lug joint 21 tops are the sub-21-1 of negative terminals, positive pole ear joint 22 tops are the sub-22-1 of positive terminal, all has external screw thread on the sub-21-1 of negative terminals and the sub-22-1 of positive terminal, negative lug joint 21 bottoms have the connecting hole 21-2 that connects negative electrode lug 9-1-1, positive pole ear joint 22 bottoms have the connecting hole 22-2 that connects anode ear 10-1-1, the sub-21-1 of negative terminals and the sub-22-1 of positive terminal stretch out the installing port 17-1 outside of shell 1 by the location and installation mouth 18-1 on the electronic mounting plate 4, on the sub-21-1 of negative terminals and the sub-22-1 of positive terminal, put insulating washer 24 respectively, and screw on hold-down nut 25 and fix.Negative lug joint 21 and positive pole ear joint 22 are fixed on the cover plate 3 of shell 1.Lamination electricity core 16 includes negative plate 9, positive plate 10 and insulation diaphragm 7, negative plate 9 and positive plate 10 are successively alternately, separated by insulation diaphragm 7 between negative plate 9 and the positive plate 10, the outside of outermost layer pole piece also is provided with insulation diaphragm 7, two ends, the left and right sides all with negative plate 9 as the outermost layer pole piece, namely according to insulation diaphragm 7, negative plate 9, insulation diaphragm 7, positive plate 10, insulation diaphragm 7, negative plate 9, insulation diaphragm 7, positive plate 10, insulation diaphragm 7 ... insulation diaphragm 7, negative plate 9, insulation diaphragm 7 is arranged, with insulation diaphragm 7, negative plate 9 and positive plate 10 press said sequence layer by layer stacked good after, adhesive tape 5 is wrapped in the outside, adhesive tape 5 also available other fixture replaces, and will expose negative electrode lug 9-1-1 and the anode ear 10-1-1 above the positive plate 10 above the negative plate 9 during bag.The both sides of negative lug joint 21 bottoms are provided with negative electrode lug clamping plate 27-1, have the through hole 27-1-1 that allows the first fixed connecting piece 20-1 pass on the negative electrode lug clamping plate 27-1, negative plate 9 is clipped between the negative electrode lug clamping plate 27-1, the negative electrode lug 9-1-1 of all negative plates 9 all is fixedly connected by the first fixed connecting piece 20-1 and the negative lug joint 21 that is through on the negative electrode lug clamping plate 27-1, and negative electrode lug 9-1-1, negative electrode lug clamping plate 27-1 and negative lug joint 21 are fixedly connected to form negative pole 901 by the first fixed connecting piece 20-1.The both sides of positive pole ear joint 22 bottoms are provided with anode ear clamping plate 27-2, have the through hole 27-2-1 that allows the second fixed connecting piece 20-2 pass on the anode ear clamping plate 27-2, positive plate 10 is clipped between the anode ear clamping plate 27-2, the anode ear 10-1-1 of all positive plates 10 all is fixedly connected by the second fixed connecting piece 20-2 and the positive pole ear joint 22 that is through on the anode ear clamping plate 27-2, and anode ear 10-1-1, anode ear clamping plate 27-2 and positive pole ear joint 22 are fixedly connected to form anodal 1001 by the second fixed connecting piece 20-2.Arrange at the two the end surfaces 901-1 of upside of the negative electrode lug 9-1-1 of described negative pole 901 and negative electrode lug clamping plate 27-1 and to be coated with negative pole conductive coating 2001, also arrange on the two the end surfaces 901-2 of the left and right sides of the negative electrode lug 9-1-1 of described negative pole 901 and negative electrode lug clamping plate 27-1 and be coated with negative pole conductive coating 2001, described negative pole conductive coating 2001 is conductive silver layer.The two the end surfaces 1001-1 of upside of anode ear 10-1-1 described anodal 1001 and anode ear clamping plate 27-2 arranges and to be coated with anodal conductive coating 2002, also arrange on the two the end surfaces 1001-2 of the left and right sides of anode ear 10-1-1 described anodal 1001 and anode ear clamping plate 27-2 and be coated with anodal conductive coating 2002, described anodal conductive coating 2002 is conductive silver layer.Negative pole conductive coating 2001 thickness that coating is set on the described negative pole 901 are 10um, and anodal conductive coating 2002 thickness that coating is set on the positive pole 1001 are 10 um.
The anodal conductive coating 2002 that coating is set on the two the end surfaces 1001-1 of upside of the anodal conductive coating 2002 that coating is set on the two the end surfaces 1001-2 of the left and right sides of anode ear 10-1-1 and anode ear clamping plate 27-2 in the present embodiment and anode ear 10-1-1 and anode ear clamping plate 27-2 is identical, make that the anodal conductive coating coating on anodal each end surfaces is more convenient, and save cost.
The method that applies negative pole conductive coating 2001 is set on the negative pole 901 is not limited to following method: the coating of negative pole conductive coating 2001 is coated on the negative pole 901 described end surfaces that need to apply of this embodiment, and oven dry got final product in 30 minutes under 60 ℃ of conditions of baking oven then.
After negative pole is coated with negative pole conductive coating 2001, the contact resistance of negative pole obviously reduces, the cathodal current temperature rise of lithium-ion-power cell reduces greatly, to drop to 45 ℃ from 60～75 ℃ of original temperature, the power output of lithium-ion-power cell obviously strengthens, and the life-span of lithium-ion-power cell prolongs.
Arrange on anodal 1001 apply anodal conductive coating 2002 method can with negative pole on that the method that applies negative pole conductive coating 2001 is set is the same, the coating of anodal conductive coating 2002 is coated on the positive pole 1001 described end surfaces that need to apply of this embodiment, and oven dry got final product in 30 minutes under 60 ℃ of conditions of baking oven then.
After positive pole is coated with anodal conductive coating 2002, anodal contact resistance obviously reduces, the positive electrode current temperature rise of lithium-ion-power cell reduces greatly, to drop to 45 ℃ from 60～75 ℃ of original temperature, the power output of lithium-ion-power cell obviously strengthens, and the life-span of lithium-ion-power cell prolongs.
Negative pole conductive coating 2001 in the present embodiment and anodal conductive coating 2002 adopt all that Shanghai TransCom Electronic Technology Co., Ltd. produces TC-1000A silver electrically-conducting paint as conductive silver layer.
As Fig. 4 and shown in Figure 14, film 9-2 and a slice Copper Foil 9-1 that described negative plate 9 is made by two graphite materials form, Copper Foil 9-1 is clamped between the film 9-2 of two graphite materials making, Copper Foil 9-1 upper end is as negative electrode lug 9-1-1, and has the hole 9-3 that allows the first fixed connecting piece 20-1 pass at this negative electrode lug 9-1-1.A plurality of negative electrode lug 9-1-1 stack and form the negative electrode lug group, and the first fixed connecting piece 20-1 is fixed together negative electrode lug clamping plate 27-1, negative electrode lug group and negative lug joint 21 by hole 9-3 and connecting hole 21-2 and through hole 27-1-1.Heat on the negative plate 9 and electric current are directly passed to negative lug joint 21 by negative electrode lug group, negative electrode lug clamping plate 27-1 and the first fixed connecting piece 20-1, and heat distributes in time by negative electrode lug clamping plate 27-1 and negative lug joint 21.
As Fig. 5 and shown in Figure 15, film 10-2 and a slice aluminium foil 10-1 that described positive plate 10 is made by two LiFePO 4 materials form, aluminium foil 10-1 is clamped between the film 10-2 of two LiFePO 4 materials making, aluminium foil 10-1 upper end is as anode ear 10-1-1, and has the hole 10-3 that allows the second fixed connecting piece 20-2 pass at this anode ear 10-1-1.A plurality of anode ear 10-1-1 stack and form the anode ear group, and the second fixed connecting piece 20-2 is fixed together anode ear clamping plate 27-2, anode ear group and positive pole ear joint 22 by hole 10-3 and connecting hole 22-2 and through hole 27-2-1.Heat on the positive plate 10 and electric current are directly passed to positive pole ear joint 22 by anode ear group, anode ear clamping plate 27-2 and the second fixed connecting piece 20-2, and heat distributes in time by anode ear clamping plate 27-2 and positive pole ear joint 22.
As shown in figure 16, the film 7-1 that described insulation diaphragm 7 is made by film 7-2 and a slice PE material of two PP materials making forms, and the film 7-1 that the PE material is made is clamped between the film 7-2 of two PP materials making.
As Fig. 1, Fig. 2 and shown in Figure 19, the two ends up and down of shell 1 are installed with battery case insulating case 26, and battery case insulating case 26 is made by insulating material.Battery case insulating case 26 is detachable.
Electronic mounting plate 4 also has supporting role to shell 1 in the present embodiment except having insulating effect, makes shell 1 more firm, and the antidetonation resistance to compression makes the negative lug joint 21 and the positive pole ear joint 22 that are fixed on the cover plate 3 more firm.
Embodiment two
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment one are basic identical.Different is: negative pole 901 arranges when applying negative pole conductive coating 2001, only arrange at the two the end surfaces 901-1 of upside of the negative electrode lug 9-1-1 of described negative pole 901 and negative electrode lug clamping plate 27-1 and be coated with negative pole conductive coating 2001, described negative pole conductive coating 2001 is conductive silver layer.Anodal 1001 arrange when applying anodal conductive coating 2002, only arrange at the two the end surfaces 1001-1 of upside of described anodal 1001 anode ear 10-1-1 and anode ear clamping plate 27-2 and be coated with anodal conductive coating 2002, described anodal conductive coating 2002 is conductive silver layer.Negative pole conductive coating 2001 thickness that coating is set on the described negative pole 901 are 20um, and anodal conductive coating 2002 thickness that coating is set on the positive pole 1001 are 20 um.
Embodiment three
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment one are basic identical.Different is: negative pole 901 arranges when applying negative pole conductive coating 2001, only arrange at the two the end surfaces 901-1 of upside of the negative electrode lug 9-1-1 of described negative pole 901 and negative electrode lug clamping plate 27-1 and be coated with negative pole conductive coating 2001, described negative pole conductive coating 2001 is conductive silver layer.Anodal 1001 that the position that applies anodal conductive coating 2002 is set is identical with embodiment one, and negative pole conductive coating 2001 thickness that coating is set on the described negative pole 901 are 15um, and anodal conductive coating 2002 thickness that coating is set on the positive pole 1001 are 15 um.
Embodiment four
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment one are basic identical.Different is: anodal 1001 arrange when applying anodal conductive coating 2002, only arrange at the two the end surfaces 1001-1 of upside of described anodal 1001 anode ear 10-1-1 and anode ear clamping plate 27-2 and be coated with anodal conductive coating 2002, described anodal conductive coating 2002 is conductive silver layer.Negative pole 901 arranges that the position that applies negative pole conductive coating 200 is identical with embodiment one, and negative pole conductive coating 2001 thickness that coating is set on the described negative pole 901 are 12um, and anodal conductive coating 2002 thickness that coating is set on the positive pole 1001 are 12 um.
Embodiment five
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment one are basic identical.Different is: described anodal conductive coating 2002 is the conduction aluminium lamination, rather than adopts conductive silver layer.Can adopt the aluminium electrically-conducting paint as the conduction aluminium lamination in the present embodiment.
What anodal conductive coating 2002 adopted in the present embodiment is the conduction aluminium lamination, rather than adopts conductive silver layer, and this is because of lower than using the conductive silver layer cost with the conduction aluminium lamination on the positive pole 1001, can reduce cost of manufacture greatly, and cost performance is higher.
Embodiment six
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment two are basic identical.Different is: described anodal conductive coating 2002 is the conduction aluminium lamination, rather than adopts conductive silver layer.Can adopt the aluminium electrically-conducting paint as the conduction aluminium lamination in the present embodiment.
Embodiment seven
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment three are basic identical.Different is: described anodal conductive coating 2002 is the conduction aluminium lamination, rather than adopts conductive silver layer.Can adopt the aluminium electrically-conducting paint as the conduction aluminium lamination in the present embodiment.
Embodiment eight
Extremely shown in Figure 22 as Fig. 1 to Fig. 5 and Fig. 9, a kind of new type lithium ion electrokinetic cell, present embodiment and embodiment four are basic identical.Different is: described anodal conductive coating 2002 is the conduction aluminium lamination, rather than adopts conductive silver layer.Can adopt the aluminium electrically-conducting paint as the conduction aluminium lamination in the present embodiment.
It is identical with embodiment one that the method that the anodal conductive coating 2002 of coating is set on the method and anodal 1001 that applies negative pole conductive coating 2001 is set on the negative pole 901 in the various embodiments described above of the present invention, can certainly select for use other method to make negative pole conductive coating 2001 and anodal conductive coating 2002.
The present invention is through a large amount of practice examining, when negative pole conductive coating 2001 thickness that coating is set on the negative pole 901 are 10～20 um for best; When anodal conductive coating 2002 thickness that coating is set on anodal 1001 are 10～20 um for best.In addition to the implementation, negative pole conductive coating 2001 thickness that coating is set on the negative pole 901 of the present invention can be selected as the preferred thickness value arbitrarily in 10～20 um scopes, and the thickness that the negative pole conductive coating 2001 of coating is set on the negative pole 901 certainly also can be selected outside 10～20 um scopes; Anodal conductive coating 2002 thickness that coating is set on anodal 1001 can be selected as the preferred thickness value arbitrarily in 10～20 um scopes, and the thickness that the anodal conductive coating 2002 of coating is set on the positive pole 1001 certainly also can be selected outside 10～20 um scopes.
The two the end surfaces 901-1 of upside of the 9-1-1 of negative electrode lug described in the present invention and negative electrode lug clamping plate 27-1 refers to the surface at the upper side place of negative electrode lug 9-1-1 and the two thickness direction of negative electrode lug clamping plate 27-1.The two the end surfaces 901-2 of the left and right sides of described negative electrode lug 9-1-1 and negative electrode lug clamping plate 27-1 refers to negative electrode lug 9-1-1 and the left surface of the two thickness direction of negative electrode lug clamping plate 27-1 and the surface at right flank place.
The two the end surfaces 1001-1 of upside of the 10-1-1 of anode ear described in the present invention and anode ear clamping plate 27-2 refers to the surface at the upper side place of anode ear 10-1-1 and the two thickness direction of anode ear clamping plate 27-2.The two the end surfaces 1001-2 of the left and right sides of described anode ear 10-1-1 and anode ear clamping plate 27-2 refers to anode ear 10-1-1 and the left surface of the two thickness direction of anode ear clamping plate 27-2 and the surface at right flank place.
Embodiments of the invention are a lot, can't be exhaustive.The invention is not restricted to above-described embodiment, the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection range that the present invention requires.
Claims (10)
1. new type lithium ion electrokinetic cell, comprise shell (1) and lamination electricity core (16), shell (1) is encapsulated in the outside of lamination electricity core (16), shell (1) is provided with breach (17), breach (17) includes installing port (17-1) and liquid injection port (17-2), negative lug joint (21) and positive pole ear joint (22) are fixed on the shell (1), negative lug joint (21) top is negative terminals (21-1), positive pole ear joint (22) top is positive terminal (22-1), negative terminals (21-1) and positive terminal (22-1) stretch out shell (1) outside by the installing port (17-1) in the breach (17), lamination electricity core (16) includes negative plate (9), positive plate (10) and insulation diaphragm (7), negative plate (9) and positive plate (10) are successively alternately, separated by insulation diaphragm (7) between negative plate (9) and the positive plate (10), the outside of outermost layer pole piece also is provided with insulation diaphragm (7), two ends, the left and right sides all with negative plate (9) as the outermost layer pole piece, the both sides of negative lug joint (21) bottom are provided with negative electrode lug clamping plate (27-1), the negative electrode lug (9-1-1) of all negative plates (9) all is fixedly connected with negative lug joint (21) by first fixed connecting piece (20-1) that is through on the negative electrode lug clamping plate (27-1), negative electrode lug (9-1-1), negative electrode lug clamping plate (27-1) and negative lug joint (21) are fixedly connected to form negative pole (901) by first fixed connecting piece (20-1), the both sides of positive pole ear joint (22) bottom are provided with anode ear clamping plate (27-2), the anode ear (10-1-1) of all positive plates (10) all is fixedly connected with positive pole ear joint (22) by second fixed connecting piece (20-2) that is through on the anode ear clamping plate (27-2), anode ear (10-1-1), anode ear clamping plate (27-2) and positive pole ear joint (22) are fixedly connected to form positive pole (1001) by second fixed connecting piece (20-2), it is characterized in that: be coated with negative pole conductive coating (2001) the two end surfaces (901-1) setting of upside of the negative electrode lug (9-1-1) of described negative pole (901) and negative electrode lug clamping plate (27-1), described negative pole conductive coating (2001) is conductive silver layer; Be coated with anodal conductive coating (2002) the two end surfaces (1001-1) setting of upside of the anode ear (10-1-1) of described positive pole (1001) and anode ear clamping plate (27-2), described anodal conductive coating (2002) be conductive silver layer or the aluminium lamination that conducts electricity.
2. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: also arrange on the two the end surfaces (901-2) of the left and right sides of the negative electrode lug (9-1-1) of described negative pole (901) and negative electrode lug clamping plate (27-1) and be coated with negative pole conductive coating (2001), described negative pole conductive coating (2001) is conductive silver layer.
3. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: on the two the end surfaces (1001-2) of the left and right sides of the anode ear (10-1-1) of described positive pole (1001) and anode ear clamping plate (27-2), also arrange and be coated with anodal conductive coating (2002), described anodal conductive coating (2002) is conductive silver layer or conduction aluminium lamination, and it is identical that the anodal conductive coating (2002) of coating is set on the two the end surfaces (1001-1) of upside of the anodal conductive coating (2002) that coating is set on the two the end surfaces (1001-2) of the left and right sides of anode ear (10-1-1) and anode ear clamping plate (27-2) and anode ear (10-1-1) and anode ear clamping plate (27-2).
4. a kind of new type lithium ion electrokinetic cell according to claim 1 and 2, it is characterized in that: negative pole conductive coating (2001) thickness that coating is set on the described negative pole (901) is 10～20 um.
5. according to claim 1 or 3 described a kind of new type lithium ion electrokinetic cells, it is characterized in that: anodal conductive coating (2002) thickness that coating is set on the described positive pole (1001) is 10～20 um.
6. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: described negative plate (9) is clipped between the negative electrode lug clamping plate (27-1), positive plate (10) is clipped between the anode ear clamping plate (27-2), have the through hole (27-1-1) that allows first fixed connecting piece (20-1) pass on the negative electrode lug clamping plate (27-1), have the through hole (27-2-1) that allows second fixed connecting piece (20-2) pass on the anode ear clamping plate (27-2).
7. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: film (9-2) and a slice Copper Foil (9-1) that described negative plate (9) is made by two graphite materials are formed, Copper Foil (9-1) is clamped between the film (9-2) of two graphite materials making, Copper Foil (9-1) upper end is as negative electrode lug (9-1-1), and has the hole (9-3) that allows first fixed connecting piece (20-1) pass at this negative electrode lug (9-1-1).
8. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: film (10-2) and a slice aluminium foil (10-1) that described positive plate (10) is made by two LiFePO 4 materials are formed, aluminium foil (10-1) is clamped between the film (10-2) of two LiFePO 4 materials making, aluminium foil (10-1) upper end is as anode ear (10-1-1), and has the hole (10-3) that allows second fixed connecting piece (20-2) pass at this anode ear (10-1-1).
9. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: the film (7-1) that described insulation diaphragm (7) is made by film (7-2) and a slice PE material of two PP materials making is formed, and the film (7-1) that the PE material is made is clamped between the film (7-2) of two PP materials making.
10. a kind of new type lithium ion electrokinetic cell according to claim 1, it is characterized in that: described shell (1) includes casing (2) and cover plate (3), breach (17) is opened on cover plate (3), breach (17) also includes venting (17-3), post safety anti-explosive film (19) on the venting (17-3), electronic mounting plate (4) is housed below the cover plate (3), electronic mounting plate (4) is gone up on the position corresponding with breach (17) and is had down breach (18), and following breach (18) includes location and installation mouth (18-1), fluid injection port (18-2) and explosion-proof through hole (18-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210040207.2A CN103296243B (en) | 2012-02-22 | 2012-02-22 | A kind of lithium-ion-power cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210040207.2A CN103296243B (en) | 2012-02-22 | 2012-02-22 | A kind of lithium-ion-power cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103296243A true CN103296243A (en) | 2013-09-11 |
| CN103296243B CN103296243B (en) | 2015-09-30 |
Family
ID=49096796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210040207.2A Expired - Fee Related CN103296243B (en) | 2012-02-22 | 2012-02-22 | A kind of lithium-ion-power cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103296243B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374557A (en) * | 2015-12-02 | 2016-03-02 | 益阳市格林电子元件有限公司 | Square laminated capacitor |
| CN107833990A (en) * | 2017-11-17 | 2018-03-23 | 河南邦泰新能源有限公司 | A kind of carbon-based electrokinetic cell and its formula |
| CN111971820A (en) * | 2018-04-06 | 2020-11-20 | 松下知识产权经营株式会社 | Electrode plate for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413847Y (en) * | 2009-06-04 | 2010-02-24 | 周金平 | Lithium-ion power battery |
| CN202142599U (en) * | 2011-07-20 | 2012-02-08 | 吉安市优特利科技有限公司 | Connecting assembly of polar ear and cover plate of lithium ion power battery |
-
2012
- 2012-02-22 CN CN201210040207.2A patent/CN103296243B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413847Y (en) * | 2009-06-04 | 2010-02-24 | 周金平 | Lithium-ion power battery |
| CN202142599U (en) * | 2011-07-20 | 2012-02-08 | 吉安市优特利科技有限公司 | Connecting assembly of polar ear and cover plate of lithium ion power battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374557A (en) * | 2015-12-02 | 2016-03-02 | 益阳市格林电子元件有限公司 | Square laminated capacitor |
| CN107833990A (en) * | 2017-11-17 | 2018-03-23 | 河南邦泰新能源有限公司 | A kind of carbon-based electrokinetic cell and its formula |
| CN111971820A (en) * | 2018-04-06 | 2020-11-20 | 松下知识产权经营株式会社 | Electrode plate for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103296243B (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170069940A1 (en) | Battery cells and arrangements | |
| CN102460775A (en) | Lithium batteries utilizing nanoporous separator layers | |
| CN108336283B (en) | Ultra-large-capacity single battery and preparation method thereof | |
| CN113261151A (en) | Separator for electrochemical device, and electronic device | |
| CN106471666A (en) | Power storage element and the method and apparatus for manufacturing power storage element | |
| WO2021184521A1 (en) | High-capacity battery and manufacturing method therefor | |
| CN101908643A (en) | Power lithium ion battery and production method thereof | |
| CN102035020A (en) | Novel lager-capacity lithium ion battery | |
| US20230113471A1 (en) | Lithium-ion secondary battery and preparation method thereof | |
| CN103268928B (en) | Bipolar battery and bipolarity energy storage device | |
| KR20140069419A (en) | Second Battery Having Film of Thermal Shrinkage Property | |
| CN103296243B (en) | A kind of lithium-ion-power cell | |
| CN109888162A (en) | Have gluing structure battery core of embedded tab and preparation method thereof and lithium battery | |
| CN2829107Y (en) | Leading-out terminal structure of lithium-ion battery | |
| CN101635370A (en) | Lithium-ion power battery | |
| WO2024021868A1 (en) | Battery core structure and battery | |
| KR101515672B1 (en) | Electrode assembly including anode and cathod electrode more than 2 and electrochemical device using the same | |
| CN202454646U (en) | Novel power lithium ion battery | |
| CN201413847Y (en) | Lithium-ion power battery | |
| CN217426789U (en) | Preparation system of negative plate, preparation system of battery cell laminated body, battery cell and battery | |
| CN201877491U (en) | Novel high-capacity lithium ion battery | |
| CN101635369A (en) | Lithium-ion power battery | |
| US9209448B2 (en) | Conductive connection structure for secondary batteries | |
| CN103456912B (en) | Chain type Li-ion batteries piles | |
| CN203445176U (en) | Chained lithium ion battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Zeyuan Inventor after: Zhou Jinping Inventor after: Shi Zhonghua Inventor after: He Zhitang Inventor after: Huang Jianchun Inventor before: Zhou Jinping Inventor before: Shi Zhonghua Inventor before: He Zhitang Inventor before: Huang Jianchun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU JINPING SHI ZHONGHUA HE ZHITANG HUANG JIANCHUN TO: GAO ZEYUAN ZHOU JINPING SHI ZHONGHUA HE ZHITANG HUANG JIANCHUN |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160222 |