CN108075130A - A kind of great-capacity power battery and preparation method thereof - Google Patents
A kind of great-capacity power battery and preparation method thereof Download PDFInfo
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- CN108075130A CN108075130A CN201810012178.6A CN201810012178A CN108075130A CN 108075130 A CN108075130 A CN 108075130A CN 201810012178 A CN201810012178 A CN 201810012178A CN 108075130 A CN108075130 A CN 108075130A
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- power battery
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 83
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 238000007747 plating Methods 0.000 claims abstract description 9
- 229910008346 ZrNi2 Inorganic materials 0.000 claims abstract description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 27
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 19
- 239000003792 electrolyte Substances 0.000 claims description 18
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- 239000011229 interlayer Substances 0.000 claims description 17
- -1 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 11
- HSSJULAPNNGXFW-UHFFFAOYSA-N [Co].[Zn] Chemical compound [Co].[Zn] HSSJULAPNNGXFW-UHFFFAOYSA-N 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 10
- 238000006277 sulfonation reaction Methods 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 8
- 229920005990 polystyrene resin Polymers 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 7
- 229910008340 ZrNi Inorganic materials 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000011282 treatment Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 4
- 229910018095 Ni-MH Inorganic materials 0.000 abstract description 11
- 229910018477 Ni—MH Inorganic materials 0.000 abstract description 11
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000007773 negative electrode material Substances 0.000 abstract description 2
- 239000007774 positive electrode material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 9
- 235000011121 sodium hydroxide Nutrition 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/42—Alloys based on zinc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/28—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/30—Nickel accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention provides a kind of great-capacity power battery and preparation method thereof, the great-capacity power battery includes the outer housing of sealed bottom upper opening, outer housing internal positive piece, the first membrane, negative plate and the second membrane are sequentially overlapped and are wound into cylinder from inside to outside, positive plate is ball-shape nickel hydroxide, and wrap positive-active film on its surface, negative plate is nickel plating copper mesh, and wraps negative electrode active film on its surface.The present invention uses ball-shape nickel hydroxide as a positive electrode active material, and in its outer substance for wrapping one layer of positive-active film as improvement anode；Negative electrode active film is formed using ZrNi2 and Me0.4Si0.2Ce0.05MnV0.45 as negative electrode active material and to wrap online in nickel-clad copper, to have the function that increase Ni-MH battery capacity, the great-capacity power battery assembled is together in series normal use, discharge capacity is up to more than 1000mAH/g.
Description
Technical field
The present invention relates to a kind of Ni-MH batteries, specifically, are related to a kind of great-capacity power battery and preparation method thereof.
Background technology
With the high speed development of electronic product, portable electronic mobile device is widely used.It is moved with electronics
The popularization of dynamic equipment, the demand of Ni-MH battery low to the environmental pollution that is used in it, being recycled for multiple times are also increasing；
In addition to the service life demand to Ni-MH battery becomes higher, higher requirement is also proposed to the capacity of Ni-MH battery.
The content of the invention
In place of solving above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of great-capacity power batteries
And preparation method thereof, the defects of to overcome in the prior art.
To achieve these goals, the present invention provides a kind of great-capacity power battery, the great-capacity power battery bags
Include outer housing, positive plate, negative plate, the first membrane, the second membrane, negative electrode collector and positive electrode collector；Wherein, outer housing is
The hollow cylinder of sealed bottom upper opening, is covered with sealing ring at the upper opening of outer housing, at the center of sealing ring upper surface
With sealing valve, outer housing is sealed by anode block in the outside of sealing valve；Negative plate, the first membrane, positive plate and
Second membrane is sequentially overlapped and is wound into cylinder and is arranged inside outer housing from inside to outside, and the membrane is from the inside to the outside successively
Respectively bottom, interlayer and outer layer, be formed uniformly respectively on the bottom and outer membrane it is several through the underlying membrane and
First micropore of outer membrane is formed uniformly several the second micropores through the interlayer film on the interlayer film；It is described
Negative plate bottom is welded with negative electrode collector, and positive electrode collector, negative electrode collector and outer housing are welded at the top of the positive plate
Interior bottom electrical connection, positive electrode collector are electrically connected with anode block；Positive plate uses ball-shape nickel hydroxide, and on positive plate surface
One layer of positive-active film is wrapped, the thickness of positive plate is 0.4~0.5mm；Negative plate uses nickel plating copper mesh, and on negative plate surface
One layer of negative electrode active film is wrapped, the thickness of negative plate is 0.3~0.4mm；The positive-active film and negative electrode active film make power
The discharge capacity of battery is also filled with electrolyte up to more than 1000mAH/g in outer housing.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the positive-active film is
Monolayer active film, the thickness of the positive-active film is 0.25~0.35mm.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the positive-active film by
Cobalt-zinc alloy powder, nickel powder, polytetrafluoroethylene (PTFE), hydroxymethyl cellulose are made.It is highly preferred that the positive-active film is by 15~20 weights
Measure part cobalt-zinc alloy powder, 10~15 parts by weight nickel powders, 2~3 parts by weight polytetrafluoroethylene (PTFE), 1~2 parts by weight hydroxymethyl cellulose system
Into.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the negative electrode active film is
Monolayer active film, the thickness of the negative electrode active film is 0.7~0.8mm.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the negative electrode active film by
ZrNi2Alloy and Me0.4Si0.2Ce0.05MnV0.45Alloy is made.It is highly preferred that the negative electrode active film is by 8~10 parts by weight
ZrNi2Alloy and 12~15 parts by weight Me0.4Si0.2Ce0.05MnV0.45Alloy is made.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the first membrane and second every
Membrane structure is identical, and the thickness of the first membrane and the second membrane is respectively 0.3~0.4mm..
As the further explanation to great-capacity power battery of the present invention, it is preferable that first micropore and
The aperture of two micropores is respectively 0.15~0.25 micron.
As the further explanation to great-capacity power battery of the present invention, it is preferable that the underlying membrane and outer layer
Film is made of sulfonation acrylic resin, and the interlayer film is made of polystyrene resin.
The present invention also provides a kind of preparation method using the great-capacity power battery, the preparation method includes
Following steps：Step 1) makes positive plate：Ball-shape nickel hydroxide is prepared using complexed-precipitation method and makes positive plate, by cobalt kirsite
It wraps on positive plate surface, is rolled through tablet press machine, microtome after powder, nickel powder, polytetrafluoroethylene (PTFE), hydroxymethyl cellulose mixing
Afterwards, positive electrode collector is welded；Step 2) makes negative plate：One layer of nickel layer is first plated on netted copper mesh, it, will be through negative plate is made
Cross the ZrNi of HF solution treatments2Alloy and Me0.4Si0.2Ce0.05MnV0.45It is electroplated after alloy outside negative plate, rolled through tablet press machine,
After microtome, negative electrode collector is welded；Step 3) makes membrane：Underlying membrane, interlayer film and outer membrane are sequentially overlapped,
It is cut at 150~200 DEG C through hot press hot pressing, guillotine, the first membrane and the second membrane is made respectively；Step 4) prepares electrolysis
Liquid：Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, after stirring and cooling down for 24 hours at room temperature, obtained
Form for 30~40% potassium hydroxide, 2~3% sodium hydroxides, 4~5% lithium hydroxides electrolyte；Step 5) battery assembles：
The negative plate made, the first membrane, positive plate and the second membrane are sequentially overlapped from inside to outside and are wound into cylinder, is packed into
In outer housing, then the electrolyte made is filled into outer housing, outer housing is sealed.
The present invention uses ball-shape nickel hydroxide as a positive electrode active material, and wraps one layer of positive-active film conduct outside it
Improve the substance of anode, select nickel powder as conductive agent to increase the electric conductivity of anode and extend anode cycle life, and select
Cobalt-zinc alloy powder prevents pole piece from expanding, the conversion ratio of positive discharge reaction is improved, so as to improve anode as additive
Discharge capacity,；Using ZrNi2And Me0.4Si0.2Ce0.05MnV0.45Negative electrode active film is formed as negative electrode active material and to wrap
To have the function that increase Ni-MH battery capacity, several great-capacity power batteries assembled are together in series just for nickel plating copper mesh
It often uses, discharge capacity is up to more than 1000mAH/g.
Description of the drawings
Fig. 1 is the structure diagram of the great-capacity power battery of the present invention.
Specific embodiment
It is attached in conjunction with appended preferred embodiment in order to further appreciate that structure, feature and the other purposes of the present invention
With attached drawing, detailed description are as follows, this attached drawing embodiment described is merely to illustrate technical scheme, and non-limiting
Invention.
As shown in Figure 1, Fig. 1 is the structure diagram of the great-capacity power battery of the present invention；The great-capacity power battery
Including outer housing 1, positive plate 2, negative plate 3, the first membrane 4, the second membrane 5, negative electrode collector 6 and positive electrode collector 7；Its
In, outer housing 1 is the hollow cylinder of sealed bottom upper opening, and sealing ring 11 is covered at the upper opening of outer housing 1, is sealed
Enclosing has sealing valve 12 at 11 upper surface centers, be sealed outer housing 1 by anode block 13 in the outside of sealing valve 12；It is negative
Pole piece 3, the first membrane 4,2 and second membrane 5 of positive plate are sequentially overlapped and are wound into cylinder and are arranged at shell from inside to outside
Inside body 1, the bottom of the negative plate 3 is welded with negative electrode collector 6, and the top of the positive plate 2 is welded with positive electrode collector
7, negative electrode collector 6 is electrically connected with bottom in outer housing 1, and positive electrode collector 7 is electrically connected with anode block 13.
The present invention is using double-layer structure identical membrane i.e. the first membrane 4 and the second membrane 5, and the membrane is by from the inside to the outside
Bottom, interlayer and outer membrane hot pressing be combined, be formed uniformly respectively on the bottom and outer membrane several through institute
The first micropore of underlying membrane and outer membrane is stated, is formed uniformly on the interlayer film several through the second of the interlayer film
Micropore, the underlying membrane and outer membrane are made of sulfonation acrylic resin, and the interlayer film is made of polystyrene resin, the
One membrane 4 is arranged between positive plate 2 and negative plate 3, and to prevent positive/negative plate contact from short circuit occurs, the membrane uses three layers
Film produced with combination, piercing through membrane also for the metal burr that prevents on pole piece causes internal short-circuit of battery, and it is sulfonated after
Polypropylene resin film gather and have good hydrophily, be easy to Electolyte-absorptive, liquid holdup is big and resistance to alkali liquid corrosion, beneficial to precipitation
Ion accelerate through film to cathode, the polystyrene resin film in interlayer has the characteristics that intensity is big, polystyrene resin film
Play the role of the compound film strength of enhancing, prevent that breakage occurs in membrane manufacturing process causes battery life to reduce；Second every
Film 5 separates positive plate 2 and outer housing 1, on the one hand prevents positive plate 2 from bonding together with outer housing 1 positive and negative anodes is caused to contact
Short circuit, another aspect electrolyte can provide good with uniformly dispersing on the second membrane 5 for the positive-active film on the outside of positive plate 2
Good reaction environment, it is preferable that the aperture of the first membrane 4 and the second membrane 5 is 0.15~0.25 micron, slightly larger than common ni-mh
The aperture of battery diaphragm ensures ion transmission, improves and inhales hydrogen rate.
The positive plate 2 of the present invention is using ball-shape nickel hydroxide, and the thickness of positive plate 2 is 0.4~0.5mm, slightly larger than common
The thickness of positive plate for nickel-hydrogen cell 2, to increase the capacity of Ni-MH battery；One layer of positive-active film, institute are wrapped on 2 surface of positive plate
It states positive-active film to be made of cobalt-zinc alloy powder, nickel powder, polytetrafluoroethylene (PTFE), hydroxymethyl cellulose, the thickness of the positive-active film
Spend for 0.25~0.35mm, by using polyfluortetraethylene of binding element and hydroxymethyl cellulose, by cobalt-zinc alloy powder and nickel powder with
Nickel hydroxide combines；Positive-active film is mainly used for improving the activity of anode reaction, to improve the capacitance of Ni-MH power cell：
Cobalt-zinc alloy powder is used to improve the capacitance of anode electrode, and can reduce positive electrode expansion, improves turning for positive discharge reaction
Rate, so as to improve the discharge capacity of anode, nickel powder can increase positive conductive and extend anode cycle life.
The negative plate 3 of the present invention uses nickel plating copper mesh, and the thickness of negative plate 3 is 0.3~0.4mm, is mainly used for as negative
The attachment matrix of pole active material, negative plate 3 electroplating surface, one layer of negative electrode active film, the thickness of negative electrode active film for 0.7~
0.8mm, in order to ensure Ni-MH battery capacity, it is necessary to set the negative electrode active film of adequate thickness, the negative electrode active film is by ZrNi2
And Me0.4Si0.2Ce0.05MnV0.45It is made, using ZrNi2To increase cathode hydrogen storage capability, and pass through Me0.4Si0.2Ce0.05MnV0.45
Improve the reactivity of cathode, Me is for improving initial capacity and improve hydrogen-absorbing ability, and Si is for accelerating Ni-MH battery
Activation, and enhance the stability of cathode, Ce reduces corrosion rate of the reaction to anode and cathode, and Mn effectively improves Ni-MH battery
Capacity.
Electrolyte is also filled in outer housing 1, electrolyte is uniformly adhered to the first membrane 4 and the second membrane 5, and fills
In outer housing 1.
Embodiment 1
Step 1) makes positive plate：0.4mm ball-shape nickel hydroxides are prepared as positive plate by the use of complexed-precipitation method, by 15g
It wraps after cobalt-zinc alloy powder, 10g nickel powders, 2g polytetrafluoroethylene (PTFE), the mixing of 1g hydroxymethyl celluloses and is formed on positive plate surface
0.25mm positive-active films, are rolled, through tablet press machine after microtome, weld positive electrode collector.
Step 2) makes negative plate：One layer of nickel layer is first plated on netted copper mesh, 0.3mm negative plates are made, HF will be passed through
The 8g ZrNi of solution treatment2With 12g Me0.4Si0.2Ce0.05MnV0.45Plating forms 0.7mm negative electrode active films outside negative plate,
It is rolled, after microtome through tablet press machine, welds negative electrode collector.
Step 3)：Make membrane：By underlying membrane (the sulfonation polypropylene resin film of 0.15 micron pore size), interlayer film
(the polystyrene resin film of 0.15 micron pore size) and outer membrane (the sulfonation polypropylene resin film of 0.15 micron pore size) are folded successively
Add, composite membrane is obtained through hot press hot pressing at 150 DEG C, after cut machine cuts into suitable size, the membrane of 0.3mm is made.
Step 4) prepares electrolyte：Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, stirring is simultaneously
After cooling down for 24 hours at room temperature, composition is obtained as 30% potassium hydroxide, 2% sodium hydroxide, the electrolyte of 4% lithium hydroxide.
Step 5) battery assembles：By the negative plate made, the first membrane, positive plate and the second membrane from inside to outside successively
It is superimposed and is wound into cylinder, be fitted into outer housing, then the electrolyte made is filled into outer housing, outer housing is carried out
Sealing.
The great-capacity power battery that at least two are assembled is together in series normal use, and discharge capacity is more than etc. after tested
In 1065mAH/g.
Embodiment 2
Step 1) makes positive plate：0.45mm ball-shape nickel hydroxides are prepared using complexed-precipitation method and make positive plate, by 17g
It wraps after cobalt-zinc alloy powder, 12g nickel powders, 2.5g polytetrafluoroethylene (PTFE), the mixing of 1.5g hydroxymethyl celluloses and is formed on positive plate surface
0.3mm positive-active films, rolled, after microtome through tablet press machine, weld positive electrode collector.
Step 2) makes negative plate：One layer of nickel layer is first plated on netted copper mesh, 0.35mm negative plates are made, HF will be passed through
The 9g ZrNi of solution treatment2With 13g Me0.4Si0.2Ce0.05MnV0.45Plating forms 0.75mm negative electrode active films outside negative plate,
It is rolled, after microtome through tablet press machine, welds negative electrode collector.
Step 3)：Make membrane：By underlying membrane (the sulfonation polypropylene resin film of 0.2 micron pore size), interlayer film (0.2
The polystyrene resin film of micron pore size) and outer membrane (the sulfonation polypropylene resin film of 0.2 micron pore size) be sequentially overlapped,
Composite membrane is obtained through hot press hot pressing at 190 DEG C, after cut machine cuts into suitable size, the membrane of 0.35mm is made.
Step 4) prepares electrolyte：Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, stirring is simultaneously
After cooling down for 24 hours at room temperature, composition is obtained as 35% potassium hydroxide, 2.5% sodium hydroxide, the electrolyte of 4.5% lithium hydroxide.
Step 5) assembles battery：By the negative plate made, the first membrane, positive plate and the second membrane from inside to outside successively
It is superimposed and is wound into cylinder, be fitted into outer housing, then the electrolyte made is filled into outer housing, outer housing is carried out
Sealing.
The great-capacity power battery that at least two are assembled is together in series normal use, and discharge capacity is more than etc. after tested
In 1082mAH/g.
Embodiment 3
Step 1) makes positive plate：0.5mm ball-shape nickel hydroxides are prepared using complexed-precipitation method and make positive plate, by 20g
Wrap what is formed on positive plate surface after cobalt-zinc alloy powder, 15g nickel powders, 3g polytetrafluoroethylene (PTFE), the mixing of 2g hydroxymethyl celluloses
0.35mm positive-active films, are rolled, through tablet press machine after microtome, weld positive electrode collector.
Step 2) makes negative plate：One layer of nickel layer is first plated on netted copper mesh, 0.4mm negative plates are made, HF will be passed through
The 10g ZrNi of solution treatment2With 15g Me0.4Si0.2Ce0.05MnV0.45Plating forms 0.8mm negative electrode active films outside negative plate,
It is rolled, after microtome through tablet press machine, welds negative electrode collector.
Step 3)：Make membrane：By underlying membrane (the sulfonation polypropylene resin film of 0.25 micron pore size), interlayer film
(the polystyrene resin film of 0.25 micron pore size) and outer membrane (the sulfonation polypropylene resin film of 0.25 micron pore size) are folded successively
Add, composite membrane is obtained through hot press hot pressing at 200 DEG C, after cut machine cuts into suitable size, the membrane of 0.4mm is made.
Step 4) prepares electrolyte：Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, stirring is simultaneously
After cooling down for 24 hours at room temperature, composition is obtained as 40% potassium hydroxide, 3% sodium hydroxide, the electrolyte of 5% lithium hydroxide.
Step 5) battery assembles：By the negative plate made, the first membrane, positive plate and the second membrane from inside to outside successively
It is superimposed and is wound into cylinder, be fitted into outer housing, then the electrolyte made is filled into outer housing, outer housing is carried out
Sealing.
The great-capacity power battery that at least two are assembled is together in series normal use, and discharge capacity is more than etc. after tested
In 1150mAH/g.
It is to be understood that foregoing invention content and specific embodiment are intended to prove technical solution provided by the present invention
Practical application should not be construed as limiting the scope of the present invention.Those skilled in the art are in spirit and principles of the present invention
It is interior, when can various modifications may be made, equivalent substitution or improvement.Protection scope of the present invention is subject to the appended claims.
Claims (10)
1. a kind of great-capacity power battery, which is characterized in that the great-capacity power battery includes outer housing (1), positive plate
(2), negative plate (3), the first membrane (4), the second membrane (5), negative electrode collector (6) and positive electrode collector (7)；Wherein,
Outer housing (1) is the hollow cylinder of sealed bottom upper opening, and sealing ring is covered at the upper opening of outer housing (1)
(11), there is sealing valve (12) at sealing ring (11) upper surface center, it will by anode block (13) in the outside of sealing valve (12)
Outer housing (1) is sealed；
Negative plate (3), the first membrane (4), positive plate (2) and the second membrane (5) are sequentially overlapped and are wound into cylinder from inside to outside
Body and it is arranged at that outer housing (1) is internal, and the first membrane (4) and the second membrane (5) respectively are bottom, centre from the inside to the outside
Layer and outer layer are formed uniformly on the bottom and outer membrane several through the first micro- of the underlying membrane and outer membrane respectively
Hole is formed uniformly several the second micropores through the interlayer film on the interlayer film；The bottom of the negative plate (3)
Be welded with negative electrode collector (6), be welded with positive electrode collector (7) at the top of the positive plate (2), negative electrode collector (6) with it is outer
The interior bottom electrical connection of housing (1), positive electrode collector (7) are electrically connected with anode block (13)；
Positive plate (2) has wrapped positive-active film for the surface of ball-shape nickel hydroxide and positive plate (2), and negative plate (3) is nickel plating
The surface of copper mesh and negative plate (3) has wrapped negative electrode active film, and the positive-active film and negative electrode active film make power battery
Capacity is more than the capacity of battery powered by conventional energy, and electrolyte is also filled in outer housing (1).
2. great-capacity power battery as described in claim 1, which is characterized in that the positive-active film is monolayer active film,
The thickness of the positive-active film is 0.25~0.35mm.
3. great-capacity power battery as described in claim 1, which is characterized in that the positive-active film by cobalt-zinc alloy powder,
Nickel powder, polytetrafluoroethylene (PTFE), hydroxymethyl cellulose are made.
4. great-capacity power battery as described in claim 1, which is characterized in that the negative electrode active film is monolayer active film,
The thickness of the negative electrode active film is 0.7~0.8mm.
5. great-capacity power battery as described in claim 1, which is characterized in that the negative electrode active film by ZrNi2 alloys and
Me0.4Si0.2Ce0.05MnV0.45 alloys are made.
6. great-capacity power battery as described in claim 1, which is characterized in that the thickness of the first membrane (4) and the second membrane (5)
Degree is respectively 0.3~0.4mm.
7. great-capacity power battery as claimed in claim 6, which is characterized in that the aperture of first micropore and the second micropore
Respectively 0.15~0.25 micron.
8. great-capacity power battery as claimed in claim 6, which is characterized in that the underlying membrane and outer membrane are by sulfonation poly- third
Olefine resin is made, and the interlayer film is made of polystyrene resin.
A kind of 9. preparation method of great-capacity power battery as described in claim 1-8 is any, which is characterized in that the preparation
Method includes the following steps：
Step 1)：It is wrapped after cobalt-zinc alloy powder, nickel powder, polytetrafluoroethylene (PTFE), hydroxymethyl cellulose are mixed in positive plate surface, warp
Tablet press machine rolls, after microtome, welds positive electrode collector；
Step 2)：Respectively by metallic nickel and the ZrNi after HF solution treatments2Alloy and Me0.4Si0.2Ce0.05MnV0.45Alloy
Plating rolls, through tablet press machine after microtome outside negative plate, welds negative electrode collector；
Step 3)：Underlying membrane, interlayer film and outer membrane are sequentially overlapped, cut through hot press hot pressing, guillotine, be made every
Film；
Step 4)：Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, stir and cooled down at room temperature for 24 hours
Afterwards, electrolyte is obtained；
Step 5)：The negative plate made, the first membrane, positive plate and the second membrane are sequentially overlapped and are wound into from inside to outside
Cylinder is fitted into outer housing, then the electrolyte made is filled into outer housing, and outer housing is sealed.
10. the preparation method of great-capacity power battery as claimed in claim 9, which is characterized in that hot pressing described in step 3)
Machine hot pressing temperature is 150~200 DEG C.
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