CN206727148U - A kind of zinc-nickel secondary batteries - Google Patents
A kind of zinc-nickel secondary batteries Download PDFInfo
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- CN206727148U CN206727148U CN201720489987.7U CN201720489987U CN206727148U CN 206727148 U CN206727148 U CN 206727148U CN 201720489987 U CN201720489987 U CN 201720489987U CN 206727148 U CN206727148 U CN 206727148U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
It the utility model is related to a kind of zinc-nickel secondary batteries, including electrolyte, shell and the electrode group being accommodated in the shell, the electrode group is saturated with the electrolyte, the electrode group includes zinc load, nickel positive pole and the interlayer being arranged between zinc load and the nickel positive pole, and the interlayer is with porous composite ceramics dividing plate.The composite ceramics dividing plate that the utility model uses can stop the puncture and permeability growth of zinc dendrite, avoid short circuit and battery catastrophic failure caused by zinc dendrite.Zinc-nickel secondary batteries of the present utility model have the advantages that manufacturing process is simple, cost is low, cycle life is high, have higher energy density and power density, energy utilization efficiency is high, can be widely applied to the industries such as electric power, traffic, electronics.
Description
Technical field
The utility model belongs to one kind of Electrochemical Engineering and commercial plant field, more particularly to technical field of battery production
Zinc-nickel secondary batteries.
Background technology
It is huge to the demand of the fossil energies such as coal and oil since human society marches toward industrialization, with coal and oil etc.
The huge consumption of non-renewable energy resources and resource increasingly lacks.The greenhouse effects and increasingly serious sky of CO2 emission aggravation
Rely to us earth home of life of the pollution of gas, ecological environment constitutes more severe threat.Current China energy
Source supply is becoming tight day, particularly electric energy.In recent years, occur electric power large area anxiety and power cuts to limit consumption in many cities and area
One of phenomenon, the main reason for causing shortage of electric power are between the rapid growth of China's economy and the limited growth of energy supply
Contradiction.It is at most industry, especially the high energy consumption industry such as electrolytic aluminium, steel and Organic electro-synthesis that wherein energy demand, which increases,.
Therefore, economizing on energy and electricity task is very urgent, and it is extremely urgent to improve energy utilization rate, economizing on energy and electricity.Greatly develop wind energy, solar energy
It is to realize the important channel of China's energy sustainable development etc. regenerative resource.Renewable energy power generation has time difference property and shakiness
It is qualitative, limit the utilization of its large-scale grid connection.Electric power storage is an effective ways of the instability problem for solving regenerative resource,
Regenerative resource large-scale application can be achieved.The crucial waste that on the one hand avoid electric energy of economize on electricity and utilizing for raising electric energy are imitated
Rate, the construction and operation and power demand moment for making electric power supply system match.On the other hand wind energy, solar energy are strengthened energetically
Etc. the development and utilization of regenerative resource.Because renewable energy power generation is by factors such as season, intensity of sunshine and wind-force changes
Influence, present unstable state feature, therefore, must just develop it is efficient, cheap, pollution less with safe and reliable energy storage technology, the storage
Energy technology had both included the extensive energy storage of long-time high power capacity, and the energy storage technology of electric energy output is also instantaneously adjusted including transient state.
Chemical storage batteries are the important means of the energy storage such as electric tool, electric car, power network, are the energy storage skills developed
Art, it is one of key technology of intelligent grid, intelligent micro-grid and energy internet.Battery has good electrical property, and easily
Accomplish that environment-protecting clean is pollution-free, therefore competitiveness is very strong, application prospect is boundless.
Zinc-base battery is the important branch of chemical storage batteries, is the research and development focus of electrochmical power source.The storage of zinc is abundant, valency
Lattice are cheap, specific capacity is high, and the production and use of zinc-base battery will not produce pollution to environment, be that real green battery is born
Pole material.Due to these good characteristics, zinc-base battery, such as zinc-nickel secondary batteries, Zn-Ni liquid battery, zinc-bromine bettery,
Enjoy researcher to pay close attention to, turn into the important R＆D direction of energy-storage battery.
Research to zinc-nickel cell system exceedes a century, and outstanding advantages are that, specific power higher than energy is larger, operating temperature
Scope is wide.But the zinc-nickel cell using zinc oxide/zinc as active material does not enter into industrial applications so far, subject matter is
The life-span of charge and discharge cycles is too short.
Zinc oxide/zinc is the zinc electrode of active material, also known as secondary zinc electrode, the zinc oxide of generally use paste spread type
(ZnO) electrode, because the ZnO formed in discharge process has larger solubility in alkali lye, it is also easy to produce in its cyclic process
Zinc dendrite and zine plate deformation, the life-span of zinc electrode is set to be typically limited to 300 times or so.To improve cycle life characteristics, Ren Menzeng
Machinery is attempted and has filled the technical methods such as formula, the 3rd electrode charge formula again, reached by changing the mode such as charging outside zinc electrode or battery
To the purpose for improving zinc electrode cycle performance.The rechargeable formula of machinery is simple and easy, but there is also replacing negative pole trivial operations, close
The problems such as envelope is not tight.And the 3rd electrode charge is used, still it is also easy to produce zinc dendrite and zinc electrode deformation.In recent years there is researcher using work
Property material and electrolyte " inside and outside " circulation charging modes, deformation and dendrite are produced in charging process to solve zinc electrode
The problem of, but with complicated EGR and electrolysis liquid treating system, make the obvious reduction of ratio energy of battery, and the internal resistance of cell
Greatly, it is difficult in maintenance.Our seminars using ZnO solubility is larger in alkali lye the characteristics of, devise dissolving/appositional pattern liquid stream zinc
Electrode, easily solve the problems such as dendrite, deformation and passivation, the shortcomings that overcoming current Alkaline Zinc electrode cycle life difference, but battery
Ratio energy it is relatively low.Zinc-bromine bettery etc., the characteristics of solubility is larger in High-pH solution using zinc halide, devise dissolving/
Appositional pattern liquid stream zinc electrode improves the shortcomings that zinc electrode cycle life difference in High-pH solution, but the ratio energy of battery also compared with
It is low.
It is zinc electricity using the key reason that zinc oxide/zinc is too short as the life-span of the zinc-nickel cell charge and discharge cycles of active material
The discharging product of pole is zinc hydroxide or zinc oxide, and the solubility in strong base solution is very big, causes zinc electrode to occur when charging
Mass transport limitation and cause dendrite short circuit, redistribution deformation.And the performance of nickel electrodes of the zinc-nickel cell is very outstanding, battery performance determines
In zinc electrode.It is the hand dissolved using the discharging product of more suppression zinc electrodes that calcium (formation calcium zincates) is added in zinc electrode
Section, effect are barely satisfactory.United States Patent (USP) 4224391 propose in alkali or the alkaline earth metal hydroxide aqueous solution add boric acid,
Phosphoric acid or arsenic acid, make excessive 0.02 ~ 3 mol/L of hydroxide, and pH value of solution is kept between 9 ~ 14.This electrolyte reduces zinc
The solubility of electrode discharge product, improve the cycle life of zinc-nickel cell.China Patent Publication No. CN101034762A is disclosed
Similar technical thought, wherein require the mol/L of free alkali 4 ~ 9.United States Patent (USP) 4247610 proposes potassium fluoride and potassium hydroxide
Mixed solution, 18 ~ 30wt% of potassium fluoride, 15 ~ 2wt% of potassium hydroxide, 20 ~ 45wt% of total soluble matters, can suppress zinc electrode discharging product
Dissolving.The it is proposed alkali 2 ~ 12 of United States Patent (USP) 005453336 mol/L, the mol/L of fluoride 0.5 ~ 4,0.5 ~ 4 mole of carbonate/
The mixed electrolyte mixed solution risen, can suppress the dissolving of zinc electrode discharging product.In above-mentioned work, zinc electrode discharging product
Solubility it is still higher, as the solubility of zinc oxide in potassium fluoride 15wt%, the solution of potassium hydroxide 15% still has equal potassium hydroxide
25% or so of solution.
In view of above work can not avoid completely zinc dendrite, zinc-nickel cell still suffer from zinc dendrite caused by battery catastrophic failure
Phenomenon.
The content of the invention
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of improved zinc-nickel two
Primary cell.
To solve above technical problem, the utility model adopts the following technical scheme that：
A kind of zinc-nickel secondary batteries, including electrolyte, shell and the electrode group being accommodated in the shell, the electrode group
Be saturated with the electrolyte, the electrode group include zinc load, nickel positive pole and be arranged between zinc load and the nickel positive pole every
Layer, the interlayer are with porous composite ceramics dividing plate.
According to an embodiment of the present utility model：The electrode group is including multiple zinc loads and multiple nickel just
Pole, each zinc load and nickel positive pole are arranged in order setting and cause each same class electrode to be located at adjacent two another kind of electricity in order
Between pole, each zinc load or nickel positive pole is wrapped up by the composite ceramics dividing plate.
Each same class electrode refers to that each zinc load is located at adjacent two nickel between adjacent two another kind of electrodes
Between positive pole or each nickel positive pole is between adjacent two zinc loads.
Preferably, the thickness of the composite ceramics dividing plate is 0.2 ~ 0.8mm.
Preferably, the hole of the composite ceramics dividing plate is 5 ~ 45 microns.
The composite ceramics dividing plate that the utility model uses is made up of ceramic powder that is resin-bonded and solidifying.Specifically, it is bonded
It is the one or more in phenolic resin, epoxy resin, polyacrylonitrile resin, Ludox with resin, ceramic powder is oxidation
Zirconium powder, titanium dioxide powder, barium titanate powder, strontium titanates powder, lithium zirconate powder, lithium titanate powder, zirconic acid aluminium lithium powder, feldspar powder, kaolin
Powder, polystyrene powder, polymethyl methacrylate powder, polyvinyl chloride powder, polyethylene powder, polypropylene powder, polylactic resin powder, third
One or more in alkene nitrile-BS powder, polyurethane powder, Silon, polyformaldehyde powder.
Composite ceramics dividing plate electrical conductivity in 7mol/L potassium hydroxide aqueous solution reaches more than 50mS/cm.
Preferably, electric insulators are set between the electrode group and the shell.
It is highly preferred that the electric insulators are polytetrafluoroethylene (PTFE), polyvinyl chloride, polypropylene, polyethylene, Kynoar
One kind in material.
Preferably, the zinc load include negative current collector, be covered in the negative current collector surface negative material and
The negative lug of described negative current collector one end is connected to, the nickel positive pole includes plus plate current-collecting body, is covered in the positive pole collection
The positive electrode of flow surface and the positive pole ear for being connected to described plus plate current-collecting body one end.
It is highly preferred that the negative current collector is punching tin-coated copper strip, punched copper tape, foam copper or punching tin-coated steel band.
Specifically, the plus plate current-collecting body is punching nickel strap or punched nickel-plated steel band.
The negative material includes negative electrode active material, and the negative electrode active material is zinc.
It is highly preferred that the plus plate current-collecting body is punching nickel strap, punched nickel-plated steel band or nickel foam.
The positive electrode includes positive active material, and the positive active material is hydroxy nickel oxide.
It is highly preferred that the zinc-nickel secondary batteries also include negative strap, negative terminal, positive strap and positive terminal
Son, one end of the negative strap are connected with the negative lug, one end of the negative terminal and the negative strap
The other end be connected, the other end extend through the shell outside the shell, one end of the positive strap and it is described just
Pole lug is connected, and one end of the positive terminal is connected with the other end of the positive strap, the other end passes through the shell
Extend outside the shell, the negative terminal, positive terminal respectively insulate with the outer-shell electron.
Specifically, the negative strap is punching tin-coated copper strip or punching tin-coated steel band.
The utility model electrolyte is alkaline electrolyte, its containing sodium carbonate, potassium carbonate, ammonium carbonate one kind or it is a kind of with
On, containing sodium hydroxide, potassium hydroxide, lithium hydroxide one or more, phosphoric acid potassium, sodium phosphate, boric acid, Boratex,
Potassium borate, lithium borate, potassium fluoride, sodium fluoride, the one or more of ammonium fluoride, containing zinc oxide, potassium zincate, sodium zincate one
Kind or more than one.
We tested micro mist glass firing different size core filter plate as zinc-nickel secondary batteries nickel oxyhydroxide with
The situation of the space bar of zinc load, the results showed that core filter plate can stop the puncture of zinc dendrite, and the core of certain hole is filtered
Growth of the metallic zinc along core filter plate internal void direction will not occur for plate.But application has significantly core filter plate in the battery
Defect：1st, fragility and immalleable；2nd, it is difficult to do thin, the thickness typically in more than 4mm；3rd, shape processing difficulties, core filter plate are
High temperature sintering, the techniques such as processing is needed to cut, polished.Afterwards it has been investigated that being born in the battery using composite ceramics dividing plate as zinc
Interlayer between pole and nickel positive pole, good result can be obtained.Composite ceramics dividing plate has porous, toughness and high intensity, thick
Spend and concentrate on 5-45 microns for 0.2 ~ 0.8mm, hole, without more than 45 microns perforates.The composite ceramics dividing plate is in 7mol/L
Potassium hydroxide aqueous solution in electrical conductivity reach more than 50mS/cm.Assembled to be applicable, composite ceramics dividing plate can stop zinc dendrite
Puncture and permeability growth, avoid short circuit and battery catastrophic failure caused by zinc dendrite.
Due to the implementation of above-mentioned technical proposal, the utility model has the following advantages that compared with prior art：
Zinc-nickel secondary batteries of the present utility model use composite ceramics dividing plate between a positive electrode and a negative electrode, the composite ceramics every
Plate can prevent zinc dendrite from puncturing with permeability growth, short circuit and battery catastrophic failure caused by avoiding zinc dendrite.
Zinc-nickel secondary batteries of the present utility model have higher energy density and power density, and energy utilization efficiency is high,
Cost is low, and technique is simple, and pollution is few, the industries such as electric power, traffic, electronics is can be widely applied to, in electric tool, electric car, electricity
Also have broad application prospects in terms of the energy storage such as net.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model zinc-nickel secondary batteries.
Fig. 2 is the utility model zinc-nickel secondary batteries pole group schematic diagram；
Fig. 3 is the utility model zinc-nickel secondary batteries nickel oxyhydroxide schematic diagram；
Fig. 4 is the utility model zinc anode of zinc-nickel secondary battery schematic diagram；
In figure：1st, positive terminal；2nd, positive strap；3rd, nickel oxyhydroxide；4th, electric insulators；5th, composite ceramics every
Plate；6th, shell；7th, zinc load；8th, negative strap；9th, negative terminal；10th, air valve；P1, positive pole ear；P2, positive electrode active material
Matter；P3, plus plate current-collecting body；N1, negative lug；N2, negative electrode active material；N3, negative current collector.
Embodiment
As shown in Fig. 1 ~ 4, the utility model provides a kind of zinc-nickel secondary batteries, including alkaline electrolyte, shell 6 and storage
Electrode group in shell 6, electrode group include zinc load 7, nickel oxyhydroxide 3 and be arranged on zinc load 7 and nickel oxyhydroxide 3 it
Between interlayer, the interlayer be with porous composite ceramics dividing plate 5.
The thickness of the composite ceramics dividing plate 5 is 0.2 ~ 0.8mm, and hole is 5 ~ 45 microns.
Between electrode group and shell 6 set electric insulators 4, specifically, electric insulators 4 be poly tetrafluoroethylene,
One kind in polychloroethylene film, polypropylene screen, polyethylene film, polyvinylidene fluoride film.Alkaline electrolyte is filled around electrode group.
The top of shell 6 is provided with air valve 10.
In the utility model, zinc load 7 includes negative current collector N3, is covered in the negative material on negative current collector N3 surfaces
And the negative lug N1 of negative current collector N3 one end is connected to, nickel oxyhydroxide 3 includes plus plate current-collecting body P3, is covered in positive pole collection
The positive electrode on fluid P3 surfaces and the positive pole ear P1 for being connected to plus plate current-collecting body P3 one end.
Negative current collector N3 is punching tin-coated copper strip, punched copper tape, foam copper or punching tin-coated steel band, plus plate current-collecting body P3
For punching nickel strap, punched nickel-plated steel band or nickel foam.Negative material includes negative electrode active material N2, and negative electrode active material N2 is
Zinc；Positive electrode includes positive active material P2, and positive active material P2 is hydroxy nickel oxide.
The utility model zinc-nickel secondary batteries also include negative strap 8, negative terminal 9, positive strap 2 and positive terminal
Son 1, one end of negative strap 8 is connected with negative lug N1, one end of negative terminal 9 and the other end phase of negative strap 8
Even, the other end extends outside shell 6 through shell 6, and one end of positive strap 2 is connected with positive pole ear P1, positive terminal 1
One end is connected with the other end of positive strap 2, the other end extends outside shell 6 through shell 6, negative terminal 9, positive terminal
1 respectively with the electronic isolation of shell 6.
Composite ceramics dividing plate of the present utility model can also pass through the preparation side of following specific embodiment by commercially available
Method is prepared.
The utility model is further described below by several specific embodiments.
Embodiment 1
The present embodiment provides a kind of specific zinc-nickel secondary batteries and preparation method thereof, and the preparation method includes following step
Suddenly：
（1）Prepare alkaline electrolyte：The mol/L of concentration of aqueous solution potassium hydroxide 4.5, the mol/L of potassium carbonate 0.5, fluorination
The mol/L of lithium 0.1, aoxidize zincification.
（2）Prepare zinc load：With zinc oxide 50g, metal zinc 10g, calcium oxide 8g, lead oxide 2g and aquadag 30g (alcohol
Dissolubility, solid content 36%) mixing, it is tuned into slurry with ethanol.By the use of foam copper as negative current collector, the slurry is coated in foam
On copper, dry, roll-in is as negative pole.Using punching tin-coated copper strip as negative lug, the ultra-sonic welded on the foam copper through clear powder
On into negative lug.
（3）Prepare nickel oxyhydroxide：With nickel hydroxide 90g, cobalt oxide powder 8g, yittrium oxide 1g, carboxymethyl cellulose 0.5g,
Mixed with polytetrafluoroethylene (PTFE) 0.5g, be slurred expecting with deionized water.By the use of nickel foam as plus plate current-collecting body, the slurry is coated in
In nickel foam, dry, roll-in is as positive pole.It is ultrasonic on the foam copper through clear powder using punched nickel-plated steel band as positive pole ear
Into positive pole ear in welding.
（4）Prepare composite ceramics dividing plate：The powdery zirconia 75g of about 5 microns of granularity is taken, adds polytetrafluoroethylene (PTFE) breast 0.5g
(aqueous dispersion polytetrafluoroethylene (PTFE) breast, solid content 60%, add herein and press solid content 0.5g), stirs, is put into baking oven
2 hours are dried at 100 DEG C to remove moisture；Epoxy resin 23g is added in aforementioned mixture, adds polyamide 10g, benzene
Amine 10g, add dimethylformamide and butanone (volume ratio 1:1) viscosity is adjusted to 1500mPa × s or so.By above-mentioned slurry
It is poured in casting mold, curtain coating makes gross thickness in 0.5mm or so naturally；Above-mentioned casting mold is loaded into baking oven, with 1 DEG C/
Min programming rate is warming up to 120 DEG C, 120 DEG C of holding constant temperature more than 10 hours, naturally cools to normal temperature, is obtained after the demoulding
Composite ceramics dividing plate.
（5）Prepare zinc-nickel secondary batteries：Zinc load, composite ceramics dividing plate, nickel oxyhydroxide are in order arranged successively
Electrode group is formed, the negative lug of zinc load is welded on negative strap and is connected on negative terminal, by nickel oxide just
The positive pole ear of pole is welded on positive strap and is connected on positive terminal, (regard electrode group as electricity by the use of polypropylene diaphragm
Insulating sublayer material) parcel after be accommodated in shell, injecting above-mentioned alkaline electrolyte makes electrode group be saturated with alkaline electrolyte, loads onto band
There is the upper lid of air valve, discharge and recharge can then be carried out by being stood through 10h or so.After charging, nickel oxyhydroxide active material is converted into hydroxyl
Base nickel oxide, zinc negative active substance are converted into metallic zinc.The battery charging and discharging voltage is limited in 1.4 ~ 2V, discharge and recharge coulomb effect
Rate is more than 95%, and energy efficiency is more than 80%.
Embodiment 2
The present embodiment provides a kind of specific zinc-nickel secondary batteries and preparation method thereof, and the preparation method includes following step
Suddenly：
（1）Alkaline electrolyte is prepared in the way of embodiment 1.
（2）Zinc load is prepared in the way of embodiment 1.
（3）Nickel oxyhydroxide is prepared in the way of embodiment 1.
（4）Prepare the composite ceramics slurry of composite ceramics dividing plate：The powdery zirconia 75g of about 5 microns of granularity is taken, is added poly-
Tetrafluoroethene breast 0.5g (aqueous dispersion polytetrafluoroethylene (PTFE) breast, solid content 60%, is added and is pressed solid content 0.5g) herein, and stirring is equal
It is even, it is put into baking oven at 100 DEG C and dries 2 hours to remove moisture；Epoxy resin 23g is added in aforementioned mixture, is added poly-
Amide resin 10g, aniline 10g, add dimethylformamide and butanone (volume ratio 1:1) it is left to 1500mPa × s to adjust viscosity
It is right.
（5）Prepare the compound zinc load of composite ceramics dividing plate：By step（4）Slurry, which is coated uniformly on, has welded negative lug
Zinc load on, make ceramic slurry that the face of zinc load six be completely covered, expose negative lug, one side ceramic separator thickness is in 0.3mm
Left and right；Above-mentioned casting mold is loaded into 120 DEG C of baking ovens and quickly boils off solvent, and then static pressure makes zinc load one side ceramic separator thick
Spend in 0.2mm or so, being then placed into 120 DEG C of constant temperature is fully cured resin in more than 10 hours, naturally cools to normal temperature, the demoulding
Obtain the compound zinc load of composite ceramics dividing plate afterwards.
（6）Prepare zinc-nickel secondary batteries：With the suitable of the compound zinc load of nickel oxyhydroxide two sides clamping composite ceramics dividing plate
Sequence arrangement forms electrode group, and the negative lug of zinc load is welded on negative strap and is connected on negative terminal, by oxygen
The positive pole ear for changing nickel positive pole is welded on positive strap and is connected on positive terminal, by electrode group polypropylene diaphragm
It is accommodated in after (as electrical insulating material) parcel in shell, injection alkaline electrolyte makes electrode group be saturated with alkaline electrolyte, fills
The upper upper lid with air valve, discharge and recharge can then be carried out by being stood through 10h or so.After charging, the conversion of nickel oxyhydroxide active material
For hydroxy nickel oxide, zinc negative active substance is converted into metallic zinc.The battery charging and discharging voltage is limited in 1.4 ~ 2V, discharge and recharge storehouse
Logical sequence efficiency is more than 95%, and energy efficiency is more than 80%.
The utility model is described in detail above, its object is to allow the personage for being familiar with this art can be much of that
Solve content of the present utility model and be carried out, the scope of protection of the utility model can not be limited with this, it is all according to this practicality
The equivalent change or modification that new Spirit Essence is made, it should all cover in the scope of protection of the utility model.
Claims (10)
1. a kind of zinc-nickel secondary batteries, including electrolyte, shell and the electrode group being accommodated in the shell, the electrode group leaching
The full electrolyte, the electrode group include zinc load, nickel positive pole and the interlayer being arranged between zinc load and the nickel positive pole,
It is characterized in that：The interlayer is with porous composite ceramics dividing plate.
2. zinc-nickel secondary batteries according to claim 1, it is characterised in that：The electrode group includes multiple zinc loads and more
Individual nickel positive pole, each zinc load and nickel positive pole are arranged in order setting and make it that each same class electrode is another positioned at adjacent two in order
Between a kind of electrode, each zinc load or nickel positive pole is wrapped up by the composite ceramics dividing plate.
3. zinc-nickel secondary batteries according to claim 1 or 2, it is characterised in that：The thickness of the composite ceramics dividing plate is
0.2~0.8mm。
4. zinc-nickel secondary batteries according to claim 1 or 2, it is characterised in that：The hole of the composite ceramics dividing plate is 5
~ 45 microns.
5. zinc-nickel secondary batteries according to claim 1 or 2, it is characterised in that：Between the electrode group and the shell
Electric insulators are set.
6. zinc-nickel secondary batteries according to claim 5, it is characterised in that：The electric insulators be polytetrafluoroethylene (PTFE),
One kind in polyvinyl chloride, polypropylene, polyethylene, polyvinylidene fluoride material.
7. zinc-nickel secondary batteries according to claim 1 or 2, it is characterised in that：The zinc load include negative current collector,
It is covered in the negative material on the negative current collector surface and is connected to the negative lug of described negative current collector one end, the nickel
Positive pole includes plus plate current-collecting body, is covered in the positive electrode on the plus plate current-collecting body surface and is connected to the plus plate current-collecting body one
The positive pole ear at end.
8. zinc-nickel secondary batteries according to claim 7, it is characterised in that：The negative current collector is punching tin-coated copper
Band, punched copper tape, foam copper or punching tin-coated steel band, the negative material include negative electrode active material, the negative electrode active material
Matter is zinc.
9. zinc-nickel secondary batteries according to claim 7, it is characterised in that：The plus plate current-collecting body is punching nickel strap, punching
Hole nickel plated steel strip or nickel foam, the positive electrode include positive active material, and the positive active material is hydroxy nickel oxide.
10. zinc-nickel secondary batteries according to claim 7, it is characterised in that：The zinc-nickel secondary batteries also include negative pole
Connection strap, negative terminal, positive strap and positive terminal, one end of the negative strap are connected with the negative lug,
One end of the negative terminal is connected with the other end of the negative strap, the other end extends outside described through the shell
Outside shell, one end of the positive strap is connected with the positive pole ear, and one end of the positive terminal is connected with the positive pole
The other end of bar is connected, the other end extends outside the shell through the shell, and the negative terminal, positive terminal are respectively
Insulated with the outer-shell electron.
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| CN201720489987.7U CN206727148U (en) | 2017-05-05 | 2017-05-05 | A kind of zinc-nickel secondary batteries |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416549A (en) * | 2019-08-19 | 2019-11-05 | 中南大学 | A kind of metal zinc load and its preparation method and application with uniform meso-hole structure coating |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416549A (en) * | 2019-08-19 | 2019-11-05 | 中南大学 | A kind of metal zinc load and its preparation method and application with uniform meso-hole structure coating |
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