CN101777671A - Cylindrical zinc-nickel cell and fabrication method thereof - Google Patents
Cylindrical zinc-nickel cell and fabrication method thereof Download PDFInfo
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- CN101777671A CN101777671A CN200910099318A CN200910099318A CN101777671A CN 101777671 A CN101777671 A CN 101777671A CN 200910099318 A CN200910099318 A CN 200910099318A CN 200910099318 A CN200910099318 A CN 200910099318A CN 101777671 A CN101777671 A CN 101777671A
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- 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
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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
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Abstract
The invention relates to a cylindrical zinc-nickel cell and a fabrication method thereof. The zinc-nickel cell comprises a cell shell, a cap, an electrode assembly and electrolyte, the electrode assembly and the electrolyte are contained in the sealed cell shell, the upper part of the electrode assembly is connected with the cap, and the electrode assembly consists of a flexibly wound nickel anode, a flexibly wound zinc cathode and a composite diaphragm; the edges of the nickel anode and the zinc cathode, which are not covered by substance, are respectively exposed out of both ends of the electrode assembly, moreover, the exposed sections are respectively bent inwards to form bags, so that the cathode and the anode are respectively loaded in the respective bags and isolated, and both end surfaces of the electrode assembly are formed into two even conductive metal end surfaces; the nickel anode and the zinc cathode are first fabricated and formed into the electrode assembly, a thorny cathodal current collector is crimped on the upper end of the electrode assembly, a thorny anodal current collector is crimped on the lower end of the electrode assembly, the outmost layer of the wound zinc cathode is completely covered by a layer of alkali-resisting insulating tape, the zinc cathode is then put into the nickel-plated steel cell shell, and the cathodal current collector is welded with the upper cap. The invention is characterized by simple technique, low cost, safety, reliability, long-term storage, long cycle life, high shock resistance, good high-current discharge performance and the like.
Description
Technical field
What the present invention relates to is a kind of battery and preparation method thereof, especially a kind of cylindrical zinc-nickel cell and preparation method thereof.
Background technology
At present, because increasingly serious environmental protection situation forces national governments to put into effect the environmental regulation of increasingly stringent, and international oil price is high and the prosperity of Internet and electronic product, bring new quick growth to Battery Market, such as hybrid vehicle, electric automobile, chargeable energy storage system, uninterruptible power system of data center or the like, along with hybrid vehicle (HEV), plug type hybrid vehicle (PHEV), and the prosperity and development of pure electric automobile (EV), press on the market a kind of can satisfy following for high power, high energy storage, high reliability and fail safe, the battery product of environmental protection more.And topmost battery technology of past, lead-acid battery and nickel-cadmium cell (NiCd), can't catch up with the demand of market development, they do not possess environmental protection requirement yet simultaneously, though lithium ion battery is succeedd in portable electric appts, but because underpower, cost an arm and a leg, security hidden trouble, can't satisfy the requirement of large scale system.Emerging zinc-nickel cell technology can satisfy above all requirements; Zinc-nickel cell is the rechargeable battery of power height, energy foot (up to 4 times of lead-acid battery), non-environmental-pollution (not leaded, do not contain cadmium, not mercurous), high reliability and fail safe good (nonflammable), with low cost, long service life.
Nineteen sixties, people have spent the military smee cell of the considerable permanent replacement of effort research and development zinc-nickel cell.The seventies is owing to energy crisis and growing oil price, and the advantage of electric vehicle is growing, and people have spent many effort again and studied it for this reason.But: because zinc easily dissolving in alkaline electrolyte, its life-span is limited; (2) in the zinc electrode charging process, easily produce tree-shaped dendrite and cause short circuit; (3) zincode distortion in the cyclic process.Owing to above reason, zinc-nickel cell is hindered development for many years.
In zinc-nickel cell, the equilibrium of electric current is to reduce the negative pole distortion and prevent one of key of dendritic growth.Basically adopt in the design of present zinc-nickel cell lug is welded to and be connected to then on the afflux base on block and the box hat.Doing the problem of bringing like this is that CURRENT DISTRIBUTION is inhomogeneous, big in the local current density that the lug position is arranged, local current density away from the lug position is just little, just causes the distortion of the distortion, particularly negative plate of pole piece like this under the situation of battery charging and discharging (circulation) easily; Because CURRENT DISTRIBUTION is inhomogeneous, cause short circuit with regard to easier long shoot crystalline substance, reduce the cycle life of battery.In addition, the diaphragm paper of zinc-nickel cell, particularly anti-branch film can not bear very high temperature, easily diaphragm paper is scorched in the process of welding.
Cylindrical zinc-nickel cell comprises battery container, electrode group and electrolyte, described electrode group and electrolyte are accommodated in the battery case, described electrode group comprises the flexible nickel positive pole of coiling, flexible zinc negative pole and barrier film, barrier film is between nickel positive pole and zinc negative pole, and described zinc negative pole comprises negative material and is loaded with the negative current collector of this material.
The battery container of cylindrical zinc-nickel cell be metal especially ferrous materials make, for example, make, so the zinc negative pole of zinc-nickel cell contacts with ferrous metal and can form serious evolving hydrogen reaction by the nickel plating box hat, bring cell internal pressure to raise, big potential safety hazard is all arranged.
In addition, sometimes the battery container made with ferrous materials of cylindrical zinc-nickel cell is as positive terminal, block a shot as negative pole end with battery seal, and the collector of zinc negative pole and the welding of battery seal block, the zinc negative terminal surface is generally covered by the higher coat of metal of overpotential of hydrogen evolution, as Sn, and SnCu alloy, Ag, Pb, Bi or alloy, in case both connections also more serious evolving hydrogen reaction can take place, cause the cell internal pressure increase to make battery that potential safety hazard be arranged.
In the prior art, generally the Zn electrode in the electrode group is done shortlyer than anodal, thereby make the electrode group behind coiling, contact with the iron and steel material quality housing by anodal, this way can bigger reduction negative pole specific surface, current density is increased and can't heavy-current discharge, the Zn utmost point be easy to take place passivation simultaneously, and loses activity.Negative terminal surface is too small in addition, thus the oxygen that nickel electrode is separated out in charging process also can't be rapidly zinc electrode be adsorbed cause in the voltage rise height, cause bigger potential safety hazard.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, but and simple, with low cost, the safe and reliable long term storage of a kind of technology be provided, have extended cycle life, anti-vibration resistance is strong, the cylindrical zinc-nickel cell and the manufacture method of good heavy current.
The objective of the invention is to finish by following technical solution, described cylindrical zinc-nickel cell, it includes battery container, block, electrode group and electrolyte, described electrode group and electrolyte are accommodated in the battery container of sealing, the top of electrode group is connected with block, described electrode group includes the nickel positive pole of flexible winding, the zinc negative pole of flexible winding, and the composite diaphragm that is positioned at nickel positive pole and zinc negative pole; Described nickel positive pole and zinc negative pole are not exposed respectively at electrode group two ends by the edge that material covers, and the section of exposing is the crooked nest of ecto-entad limit respectively, with the shape pouch and respectively with isolating in negative pole and the anodal bag of packing into separately, form two smooth conducting metal end faces in electrode group both ends of the surface.
Described electrode group upper surface is a negative pole conducting metal end face, and crimping and weldering are connected with barbed negative pole currect collecting sheet on it; And electrode group lower surface is anodal conducting metal end face, and crimping and weldering are connected with barbed anode collection sheet on it; Described negative pole currect collecting sheet top is connected with by block by at least one sealed nylon circle and goes up assembly, the block block that constitutes of assembly and middle explosion-proof valve down; Described composite diaphragm is by one deck PP or PE, or the barrier film of two kinds of common micropores of forming of material after hydrophilic treated and one deck Wei Nilun or polypropylene or nonwoven fabrics storage liquid film are by welding or being formed by MC, CMC, HPMC, PVA, PV, PTFE one or more bonding dryings wherein.
Described block lower member surface is coated with Ag, Cu, In, Pb, Sn, Zn or one or more alloys wherein; Assembly surface is coated with the alloy layer of one or more metals compositions of Cu, Ni, Sn, Ag, B, Zn, Pb, Pt, Sb, Se, Ti on the described block; Negative pole currect collecting spare material can be stainless steel, spring steel, copper facing steel band, copper alloy, nickel or multiple metal and is laminated with wherein one or more of band, and a kind of or alloy wherein of Ag, Pb, Bi, Ni, Zn, Sn, Cu can be plated in its surface; The anode collection sheet can plate the alloy that one or more metals wherein of Ag, Ni, Sb, Se, Ti, Cu, Zn, In, Sn form by the surface and constitute, and comprises stainless steel, spring steel, nickel plating steel disc, oozes the ferronickel sheet, wherein a kind of of red copper, brass, nickel foil, zinc paper tinsel, tinfoil paper, silver foil, red copper or be made up of jointly multiple alloy.
The one side of described negative pole currect collecting sheet and anode collection sheet all has high 0.1-10mm burr; The assembly weldering connects wherein said negative pole currect collecting sheet with blocking a shot down; Described anode collection sheet and battery container weldering connect together; Electrode group between described negative pole currect collecting sheet and anode collection sheet, its extexine are coated with alkaline-resisting insulating cement belt, and this alkaline-resisting insulating tape floor height goes out electrode group end face 0.5-50mm.
Described alkaline-resisting insulating cement belt selects for use one or more materials in PP, PE, PTFE, the nylon to form jointly, its sticky surface and another side is a shiny surface.
Assembly selects for use stainless steel or nickel plating steel disc to make on the described block, and it is the center with parts, is symmetrically distributed with the 1-10 steam vent in order to ensure that battery can in time leak pressure inside under unexpected situation.
Be placed with between assembly and the negative pole currect collecting sheet under the described block with PP, PE or other and have the sealing ring that alkaline-resisting, high temperature resistant, ductility, elasticity, material that fillibility is good are made, the surface-coated of sealing circle has in modified pitch, electrolysis pitch, aviation paraffin, atoleine, the special seal gum one or more to mix sealants.
Assembly and block are gone up between the assembly and are provided with the block explosion-proof valve of being made by butyronitrile rubber, polyamine fat, Ethylene Propylene Terpolymer material under the described block.
A kind of manufacture method of aforesaid cylindrical zinc-nickel cell, this method is: make nickel positive plate and zinc negative plate earlier, and by flexible winding composition electrode group, the edge that nickel positive pole after wherein reeling is not covered by material stretches out utmost point group end face 0.5-50mm, this external part is processed into ecto-entad with frock is bent to form a smooth positive pole conduction end face; The edge that zinc negative pole behind the coiling is not covered by material also stretches out utmost point group end face 0.5-50mm, this external part also is processed into ecto-entad with frock is bent to form a smooth negative pole conduction end face; Be crimped with barbed negative pole currect collecting sheet in the upper end of above-mentioned electrode group, and be crimped with barbed anode collection sheet in its lower end, after the outermost layer of zinc negative pole behind the coiling covers the alkaline-resisting insulating cement belt of one deck fully, put into the nickel plating battery container, and negative pole currect collecting sheet and the weldering of top block are connected together.
Anodal dry method or the wet processing of adopting of described nickel made flexible nickel anode plate, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of utmost point group behind the coiling, the crimping of nest spring Qu Houyu anode collection sheet; Described zinc negative pole adopts dry method or wet processing to make flexible zinc negative plates, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of utmost point group behind the coiling, the crimping of nest spring Qu Houyu negative pole currect collecting sheet.
The invention belongs to a kind of improvement to prior art, but it have simple, with low cost, the safe and reliable long term storage of technology, have extended cycle life, characteristics such as anti-vibration resistance is strong, good heavy current.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a negative pole currect collecting sheet schematic diagram of the present invention.
Fig. 3 is an anode collection sheet schematic diagram of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing: shown in Figure 1, cylindrical zinc-nickel cell of the present invention, it includes battery container 7, block, electrode group and electrolyte, described electrode group and electrolyte are accommodated in the battery container 7 of sealing, the top of electrode group is connected with block, described electrode group includes the nickel positive pole 10 of flexible winding, the zinc negative pole 9 of flexible winding, and the composite diaphragm 8 that is positioned at nickel anodal 10 and zinc negative pole 9; Described nickel anodal 10 and zinc negative pole 9 are not exposed respectively respectively at electrode group two ends by the edge that material covers, and the section of exposing is the crooked nest of ecto-entad limit respectively, with the shape pouch and respectively with isolating in negative pole and the anodal bag of packing into separately, form two smooth conducting metal end faces in electrode group both ends of the surface.
Described electrode group upper surface is a negative pole conducting metal end face, and crimping and weldering are connected with barbed negative pole currect collecting sheet 3 on it, see shown in Figure 2; And electrode group lower surface is anodal conducting metal end face, and crimping and weldering are connected with barbed anode collection sheet 11 on it, see shown in Figure 3; Described negative pole currect collecting sheet 3 tops are connected with the block that is made of assembly 4 and middle explosion-proof valve 1 under the last assembly 6 of block, the block by at least one sealed nylon circle 2; Described composite diaphragm 8 is by one deck PP or PE, or the barrier film of two kinds of common micropores of forming of material after hydrophilic treated and one deck Wei Nilun or polypropylene or nonwoven fabrics storage liquid film are by welding or being formed by MC, CMC, HPMC, PVA, PV, PTFE one or more bonding dryings wherein.
Described block lower member 4 surfaces are coated with Ag, Cu, In, Pb, Sn, Zn or one or more alloys wherein; Assembly 6 surfaces are coated with the alloy layer of one or more metals compositions of Cu, Ni, Sn, Ag, Bi, Zn, Pb, Pt, Sb, Se, Ti on the described block; Negative pole currect collecting spare 3 materials can be stainless steel, spring steel, copper facing steel band, copper alloy, nickel or multiple metal and are laminated with wherein one or more of band, and a kind of or alloy wherein of Ag, Pb, Bi, Ni, Zn, Sn, Cu can be plated in its surface; Anode collection sheet 11 can plate the alloy that one or more metals wherein of Ag, Ni, Sb, Se, Ti, Cu, Zn, In, Sn form by the surface and constitute, and comprises stainless steel, spring steel, nickel plating steel disc, oozes the ferronickel sheet, wherein a kind of of red copper, brass, nickel foil, zinc paper tinsel, tinfoil paper, silver foil, red copper or be made up of jointly multiple alloy.
The one side of described negative pole currect collecting sheet 3 and anode collection sheet 11 all has high 0.1-10mm burr; Assembly 4 welderings connect wherein said negative pole currect collecting sheet 3 with blocking a shot down; Described anode collection sheet 11 connects together with battery container 7 welderings; Electrode group between described negative pole currect collecting sheet 3 and anode collection sheet 11, its extexine are coated with alkaline-resisting insulating cement belt 5, and this alkaline-resisting insulating cement belt 5 exceeds electrode group end face 0.5-50mm.Described alkaline-resisting insulating cement belt 5 selects for use one or more materials in PP, PE, PTFE, the nylon to form jointly, its sticky surface and another side is a shiny surface.
Assembly 6 selects for use stainless steel or nickel plating steel disc to make on the described block, and it is the center with parts, is symmetrically distributed with the 1-10 steam vent in order to ensure that battery can in time leak pressure inside under unexpected situation.
Be placed with between assembly 4 and the negative pole currect collecting sheet 3 under the described block with PP, PE or other and have the sealing ring 2 that alkaline-resisting, high temperature resistant, ductility, elasticity, material that fillibility is good are made, the surface-coated of sealing circle 2 has in modified pitch, electrolysis pitch, aviation paraffin, atoleine, the special seal gum one or more to mix sealants.
Assembly 4 and block are gone up between the assembly 6 and are provided with the block explosion-proof valve of being made by butyronitrile rubber, polyamine fat, Ethylene Propylene Terpolymer material 1 under the described block.
A kind of manufacture method of aforesaid cylindrical zinc-nickel cell, this method is: make nickel positive plate and zinc negative plate earlier, and by flexible winding composition electrode group, the edge that nickel positive pole after wherein reeling is not covered by material stretches out utmost point group end face 0.5-50mm, this external part is processed into ecto-entad with frock is bent to form a smooth positive pole conduction end face; The edge that zinc negative pole behind the coiling is not covered by material also stretches out utmost point group end face 0.5-50mm, this external part also is processed into ecto-entad with frock is bent to form a smooth negative pole conduction end face; Be crimped with barbed negative pole currect collecting sheet in the upper end of above-mentioned electrode group, and be crimped with barbed anode collection sheet in its lower end, after the outermost layer of zinc negative pole behind the coiling covers the alkaline-resisting insulating cement belt of one deck fully, put into the nickel plating battery container, and negative pole currect collecting sheet and the weldering of top block are connected together.
Anodal dry method or the wet processing of adopting of described nickel made flexible nickel anode plate, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of utmost point group behind the coiling, the crimping of nest spring Qu Houyu anode collection sheet; Described zinc negative pole adopts dry method or wet processing to make flexible zinc negative plates, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of utmost point group behind the coiling, the crimping of nest spring Qu Houyu negative pole currect collecting sheet.
Column like zinc nickel-based battery of the present invention, because negative pole is longer than anodal, so this negative pole specific surface increase, the oxygen of separating out when nickel electrode is charged can adsorb fully.The edge that nickel electrode behind the coiling is not covered by material stretches out utmost point group end face 0.5-50mm and positive pole is conducted electricity end face recruitment dress is processed into by crooked 90 degree outside to inside and forms a smooth anodal end face that conducts electricity, and two-layer adjacent barrier film shape pouch is loaded on positive pole wherein fully.The edge that zinc electrode behind the coiling is not covered by material stretches out utmost point group end face 0.5-50mm, negative pole is conducted electricity end face recruitment dress to be processed into and to form a smooth negative pole by crooked 90 degree outside to inside and conduct electricity end face, two-layer adjacent barrier film shape pouch is loaded on negative pole fully and wherein forms a smooth negative pole conduction end face, the requirement that contact with the two poles of the earth flow collection sheet at two ends respectively or weld the assurance heavy-current discharge with end face.Zinc negative pole outermost one deck behind the coiling is covered fully by alkaline-resisting insulating tape, and this alkaline-resisting insulating tape can be isolated zinc negative pole and iron and steel housing fully, contacts the evolving hydrogen reaction generation of being given birth to zinc thereby overcome iron and steel.
In the assembling of zinc-nickel cell, in order to prevent the appearance of these problems, we adopt the fit of pole pressure piece, and concrete way is: earlier that pole piece coiling is good, carry out the nest limit then and the top of pole piece is pressed into flat-shaped, the afflux base with whole anodal group or negative pole group all has been unified into a slice like this; The flow collection sheet or the stage clip that will have thorn are welded on the battery container of block and steel; And then electrode group and barbed flow collection sheet or stage clip forced together.The entire electrode group can both play the effect of conduction current like this, and CURRENT DISTRIBUTION is very even, and suitable high power discharge.
Zu Zhuan battery because CURRENT DISTRIBUTION is even, can not cause polarization because CURRENT DISTRIBUTION is uneven like this; So just can significantly reduce the distortion of battery pole piece in charge and discharge process; Because the uniformity of CURRENT DISTRIBUTION, the chance of constrained dendritic growth also reduce greatly, thereby increase the cycle life of battery.
The another one benefit of assembled battery is like this: diaphragm paper, particularly anti-branch film can not scorched in assembling process.Because anti-branch film is what to be separated with the process of welding.An anti-branch film is reeled with pole piece and has been formed the electrode group in the battery pack process of assembling, and being connected of electrode group and block or steel battery container is to compress into the electrode group by the burr of flow collection sheet.
As shown in Figure 1, cylindrical zinc-nickel cell provided by the invention comprises battery container 7, electrode group and electrolyte, described electrode group and electrolyte are accommodated in the battery container 7 of sealing, described electrode group comprises the flexible nickel positive pole 10, flexible negative plate 9, composite diaphragm 8 of coiling, between flexible nickel electrode 10, flexible zinc negative pole 9, wherein the edge that do not covered by material of both positive and negative polarity matrix exposes 0.5-50mm respectively at electrode group two ends and is 90 degree ecto-entads and is bent to form bag shape and the two poles of the earth safety packed into keep apart in the bag respectively.Effectively avoid nickel extremely zincode to be polluted, electrode group both ends of the surface form smooth conducting metal end face, guarantee big electric current output with 3,11 crimping of the two poles of the earth flow collection sheet or welding respectively.
In the described structure, block lower member 2 surface plating Ag, Cu, In, Pb, Sn, Zn or one or more alloys wherein can be isolated iron member and negative plate 9 crimping points like this and be produced micro cell and separate out hydrogen.Negative pole currect collecting spare 3 materials can be stainless steel, spring steel, copper facing steel band, copper alloy, nickel or multiple metal and are laminated with wherein one or more of band, and these parts have stronger elasticity.The little rotten evolving hydrogen reaction that its parts surface can plate Ag, Pb, Bi, Ni, Zn, Sn, Cu, a kind of or alloy wherein can be isolated is like this produced with negative pole currect collecting sheet end face takes place; The preferred steel disc of material; Overlay coating is preferably from Ag, In and Sn binary alloy.
In the described structure, composite diaphragm 8 is by one deck PP or PE, or the barrier film of two kinds of common micropores of forming of material after hydrophilic treated and one deck Wei Nilun or polypropylene or nonwoven fabrics storage liquid film are by welding or being formed by MC, CMC, HPMC, PVA, PV, PTFE one or more bonding dryings wherein.It is more easy to operate that its advantage is to form behind the individual layer battery assembling, and battery consistency is ensured that better production efficiency increases 5%-100%.Microporous barrier preferably is laminated with material from PP, PE or PP|PE, and nonwoven fabrics is preferably from the polypropylene felt, and the two membranes complex method is preferably from ratio-frequency welding.
In the described structure, anodal dry method or the wet processing of adopting made flexible pole plate, matrix border 0.5-50mm is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 0.5-50mm of electrode group behind the coiling, with 11 crimping of anode collection sheet, can satisfy the needs of heavy-current discharge after crooked.
In the described structure, negative pole adopts dry method or wet processing to make flexible pole plate, matrix border 0.5-50mm is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 0.5-50mm of electrode group behind the coiling, with 3 crimping of negative pole currect collecting sheet, can satisfy the needs of heavy-current discharge after crooked.
In the described structure, negative pole currect collecting sheet 3 can plate the alloy layer that Sb, Se, Ti, Ag, Ni, Cu, Zn, In, Sn one or more metals are wherein formed by the surface, and the flow collection sheet material can select stainless steel, spring steel, nickel plating steel disc for use, ooze wherein a kind of of ferronickel sheet, red copper, brass, hard nickel paper tinsel, zinc paper tinsel, tinfoil paper, silver foil, beryllium copper or be made up of jointly multiple alloy.Parts should have fabulous elasticity, this assembly one side or have high 0.1-10mm burr, and it greatly reduces the battery ohmic internal resistance, promotes battery high magnification characteristic and reliability, and at first assembly 4 welds together with blocking a shot down for it.Preferably from spring steel, beryllium copper.Its overlay coating is preferably from Ag, In, Sn.
In the described structure, anode collection sheet 11 can plate the alloy that Ag, Ni, Sb, Se, Ti, Cu, Zn, In, Sn one or more metals are wherein formed by the surface, and the flow collection sheet material can be selected for use, stainless steel, spring steel, nickel plating steel disc, ooze wherein a kind of of ferronickel sheet, red copper, brass, nickel foil, zinc paper tinsel, tinfoil paper, silver foil, red copper or be made up of jointly multiple alloy.This assembly one side or have high 0.1-10mm burr, it greatly reduces the battery ohmic internal resistance, promotes battery high magnification characteristic and reliability, and itself and steel battery container 7 at first weld together.Wherein anodally original 1 or many and can pass the anode collection sheet by the lead that Cr, Cu, Fe, Ni, Sn, Zn, Ag, Bi, Sb, Se, Ti material process and steel battery container 7 welds together, do vibrant characteristic thereby greatly improve battery; Preferably from the nickel plating steel disc, ooze the ferronickel sheet.Overlay coating is preferably from Cr, Ni.
In the described structure, alkaline-resisting insulating tape 5 can be selected from PP, PE, PTFE, its one or more materials that neutralize of nylon are formed jointly, and this adhesive tape simultaneously has glue simultaneously to be shiny surface.Have simultaneously in 40% KOH solution under 80 ℃ of environment and placed 12 hours, its still tool 100% hate alkalescence, the contraction distortion rate is less than 4%, it can effectively be isolated box hat and negative pole, avoiding battery short circuit or liberation of hydrogen to send out should take place.Preferred material is from PP, PE.
In the described structure, nickel plating cover assembly 6 materials can be selected from stainless steel, nickel plating steel disc etc., are the center with parts, are symmetrically distributed with the 1-10 steam vent in order to ensure that battery can in time leak pressure inside under unexpected situation, guarantee cell safety.The alloy layer that parts surface coating can select for use Cu, Ni, Sn, Ag, Bi, Zn, Pb, Pt, Sb, Se, Ti, one or more metals wherein to form can guarantee during the long storage of battery the not affected by environment and corrosion of outward appearance; Preferred nickel plating steel disc, stainless steel.
In the described structure, the negative pole matrix can be selected punching for use, three-dimensional, cut and draw in the net, the braided metal net, the continuous Ag of foam, Zn, Sn, Bi, Ni, Fe, yellow Cu, wherein a kind of of purple Cu or form by wherein several alloys or composite material, it is the higher Sn in position that the optional liberation of hydrogen of its overlay coating is crossed, Ag, Cu, Bi, Pb, Pt, Sb, Se, Ti, Ga, Cr, Ge a kind of or many clocks alloy layer wherein, its coating can reduce battery at long term storage and matrix and zinc generation evolving hydrogen reaction between the operating period, reduce cell internal pressure greatly, thereby guarantee the safety of battery, the capacity restorability, the invertibity of zincode; Preferred three-dimensional Ag, Cu, Zn are as matrix.The preferred Ag of overlay coating, Bi, Sn.
In the described structure, sealing ring 2 materials can be selected from PP, PE, and other have alkaline-resisting, high temperature resistant, ductility, elasticity, material that fillibility is good, its surface is coated as modified pitch, electrolysis pitch, aviation paraffin, atoleine, special seal gum one or more mixing sealants wherein, and he can not leak at long term storage, use alkali lye by fine assurance battery.Preferred PP, PE process raw material as sealing ring.
In the described structure, block explosion-proof valve 1 material can be selected from butyronitrile rubber, polyamine fat, its material of Ethylene Propylene Terpolymer should have features such as better elasticity, fillibility, alkali resistance, heat-resisting quantity, good in oxidation resistance; Preferred ethylene propylene diene rubber or nitrile rubber.
Claims (10)
1. cylindrical zinc-nickel cell, it includes battery container, block, electrode group and electrolyte, described electrode group and electrolyte are accommodated in the battery container of sealing, and the top of electrode group is connected with block, it is characterized in that described electrode group includes the nickel positive pole (10) of flexible winding, the zinc negative pole (9) of flexible winding, and be positioned at composite diaphragm (8) between nickel positive pole (10) and the zinc negative pole (9); Described nickel positive pole (10) and zinc negative pole (9) are not exposed 0.5-50mm by the edge that material covers respectively at utmost point group two ends, and be the crooked nest of 90 degree ecto-entads limit shape pouches and packed in the two poles of the earth respectively and isolate in separately the bag, form smooth conducting metal end face in electrode group both ends of the surface.
2. cylindrical zinc-nickel cell according to claim 1 is characterized in that the upper surface crimping of electrode group and weldering are connected with barbed negative pole currect collecting sheet (3); And be connected with barbed anode collection sheet (11) in lower surface crimping of electrode group and weldering; Described negative pole currect collecting sheet (3) top is connected with by block by at least one sealed nylon circle (2) and goes up assembly (6), the block block of assembly (4) and middle explosion-proof valve (1) formation down; Described composite diaphragm (8) is by one deck PP or PE, or the barrier film of two kinds of common micropores of forming of material after hydrophilic treated and one deck Wei Nilun or polypropylene or nonwoven fabrics storage liquid film are by welding or being formed by MC, CMC, HPMC, PVA, PV, PTFE one or more bonding dryings wherein.
3. cylindrical zinc-nickel cell according to claim 2 is characterized in that the plating of described block lower member (2) surface Ag, Cu, In, Pb, Sn, Zn or one or more alloys wherein; Assembly on the described block (6) surface is coated with the alloy layer of one or more metals compositions of Cu, Ni, Sn, Ag, Bi, Zn, Pb, Pt, Sb, Se, Ti; Negative pole currect collecting spare (3) material can be stainless steel, spring steel, copper facing steel band, copper alloy, nickel or multiple metal and is laminated with wherein one or more of band, and a kind of or alloy wherein of Ag, Pb, Bi, Ni, Zn, Sn, Cu can be plated in its surface; Anode collection sheet (11) can plate the alloy that one or more metals wherein of Ag, Ni, Sb, Se, Ti, Cu, Zn, In, Sn form by the surface and constitute, and comprises stainless steel, spring steel, nickel plating steel disc, oozes the ferronickel sheet, wherein a kind of of red copper, brass, nickel foil, zinc paper tinsel, tinfoil paper, silver foil, red copper or be made up of jointly multiple alloy.
4. according to claim 2 or 3 described cylindrical zinc-nickel cells, it is characterized in that the one side of described negative pole currect collecting sheet (3) and anode collection sheet (11) all has high 0.1-10mm burr; Assembly (4) weldering connects wherein said negative pole currect collecting sheet (3) with blocking a shot down; Described anode collection sheet (11) is published in instalments with steel battery container (7) weldering; Electrode group between described negative pole currect collecting sheet (3) and anode collection sheet (11), its extexine is coated with alkaline-resisting insulating cement belt (5), and this alkaline-resisting insulating cement belt (5) exceeds electrode group end face 0.5-50mm.
5. cylindrical zinc-nickel cell according to claim 4 is characterized in that described alkaline-resisting insulating cement belt (5) selects for use one or more materials in PP, PE, PTFE, the nylon to form jointly, its sticky surface and another side is a shiny surface.
6. according to claim 2 or 3 described cylindrical zinc-nickel cells, it is characterized in that assembly on the described block (6) selects for use stainless steel or nickel plating steel disc to make, it is the center with parts, is symmetrically distributed with the 1-10 steam vent in order to ensure that battery can in time leak pressure inside under unexpected situation.
7. cylindrical zinc-nickel cell according to claim 4, it is characterized in that being placed with between assembly under the described block (4) and the negative pole currect collecting sheet (3) with PP, PE or other and have the sealing ring (2) that alkaline-resisting, high temperature resistant, ductility, elasticity, material that fillibility is good are made, the surface-coated of sealing circle (2) has in modified pitch, electrolysis pitch, aviation paraffin, atoleine, the special seal gum one or more to mix sealants.
8. cylindrical zinc-nickel cell according to claim 7 is characterized in that assembly under the described block (4) and block upward are provided with the block explosion-proof valve of being made by butyronitrile rubber, polyamine fat, Ethylene Propylene Terpolymer material (1) between the assembly (6).
9. manufacture method as each cylindrical zinc-nickel cell among the claim 1-8, this method is: make nickel positive pole and zinc negative pole earlier and form the electrode group by flexible winding, the edge that nickel positive pole after wherein reeling is not covered by material stretches out utmost point group end face 0.5-50mm, this external part is processed into ecto-entad with frock is bent to form a smooth positive pole conduction end face; The edge that zinc negative pole behind the coiling is not covered by material also stretches out utmost point group end face 0.5-50mm, this external part also is processed into ecto-entad with frock is bent to form a smooth negative pole conduction end face; Be crimped with barbed negative pole currect collecting sheet in the upper end of above-mentioned electrode group, and be crimped with barbed anode collection sheet in its lower end, after the outermost layer of zinc negative pole behind the coiling covers the alkaline-resisting insulating cement belt of one deck fully, put into the steel battery container of nickel plating, and negative pole currect collecting sheet and the weldering of top block are connected together.
10. the manufacture method of cylindrical zinc-nickel cell according to claim 9, it is characterized in that the anodal nickel anode plate that adopts dry method or wet processing to make flexibility of described nickel, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of electrode group behind the coiling, the crimping of nest spring Qu Houyu anode collection sheet; Described zinc negative pole adopts dry method or wet processing to make flexible zinc negative plates, the matrix border 5-30mm of its pole plate is not covered by material, form the flow collection band of a function admirable, expose to one of them end face 5-30mm of electrode group behind the coiling, the crimping of nest spring Qu Houyu negative pole currect collecting sheet.
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| CN200910099318A CN101777671A (en) | 2009-06-08 | 2009-06-08 | Cylindrical zinc-nickel cell and fabrication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910099318A CN101777671A (en) | 2009-06-08 | 2009-06-08 | Cylindrical zinc-nickel cell and fabrication method thereof |
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| US8048558B2 (en) * | 2005-04-26 | 2011-11-01 | Powergenix Systems, Inc. | Cylindrical nickel-zinc cell with negative can |
| CN103280559A (en) * | 2013-03-06 | 2013-09-04 | 广州市兆拓实业有限公司 | Sealed zinc-nickel secondary cell zinc negative electrode, and cell and preparation method thereof |
| CN103311555A (en) * | 2013-05-17 | 2013-09-18 | 徐平 | Axial end face collecting type cylindrical Zn-Ni battery and manufacturing method thereof |
| US8703330B2 (en) | 2005-04-26 | 2014-04-22 | Powergenix Systems, Inc. | Nickel zinc battery design |
| CN104362391A (en) * | 2011-05-09 | 2015-02-18 | 杭州新研动力能源有限公司 | Nickel-zinc battery and manufacturing method |
| CN106058133A (en) * | 2016-08-15 | 2016-10-26 | 系统电子科技（镇江）有限公司 | Nickel-plated steel sheet for battery module |
| CN107799709A (en) * | 2016-09-06 | 2018-03-13 | 三星Sdi株式会社 | Rechargeable battery |
| CN111916581A (en) * | 2019-05-09 | 2020-11-10 | 山东华太新能源电池有限公司 | High-capacity rechargeable nickel-metal hydride battery and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8048558B2 (en) * | 2005-04-26 | 2011-11-01 | Powergenix Systems, Inc. | Cylindrical nickel-zinc cell with negative can |
| US8703330B2 (en) | 2005-04-26 | 2014-04-22 | Powergenix Systems, Inc. | Nickel zinc battery design |
| CN104362391A (en) * | 2011-05-09 | 2015-02-18 | 杭州新研动力能源有限公司 | Nickel-zinc battery and manufacturing method |
| CN104362391B (en) * | 2011-05-09 | 2017-08-04 | 杭州新研动力能源有限公司 | Nickel-zinc cell and its manufacture method |
| CN103280559A (en) * | 2013-03-06 | 2013-09-04 | 广州市兆拓实业有限公司 | Sealed zinc-nickel secondary cell zinc negative electrode, and cell and preparation method thereof |
| CN103311555A (en) * | 2013-05-17 | 2013-09-18 | 徐平 | Axial end face collecting type cylindrical Zn-Ni battery and manufacturing method thereof |
| CN106058133A (en) * | 2016-08-15 | 2016-10-26 | 系统电子科技（镇江）有限公司 | Nickel-plated steel sheet for battery module |
| CN106058133B (en) * | 2016-08-15 | 2018-09-21 | 系统电子科技（镇江）有限公司 | A kind of battery modules nickel plating steel disc |
| CN107799709A (en) * | 2016-09-06 | 2018-03-13 | 三星Sdi株式会社 | Rechargeable battery |
| CN107799709B (en) * | 2016-09-06 | 2022-08-12 | 三星Sdi株式会社 | Rechargeable battery |
| CN111916581A (en) * | 2019-05-09 | 2020-11-10 | 山东华太新能源电池有限公司 | High-capacity rechargeable nickel-metal hydride battery and manufacturing method thereof |
| WO2023115961A1 (en) * | 2021-12-20 | 2023-06-29 | 湖北亿纬动力有限公司 | Battery cover plate assembly and cylindrical battery |
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