CN207637940U - A kind of high current Ni-MH battery - Google Patents
A kind of high current Ni-MH battery Download PDFInfo
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- CN207637940U CN207637940U CN201721924174.2U CN201721924174U CN207637940U CN 207637940 U CN207637940 U CN 207637940U CN 201721924174 U CN201721924174 U CN 201721924174U CN 207637940 U CN207637940 U CN 207637940U
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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
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a kind of high current Ni-MH battery, and the high current Ni-MH battery includes outer housing, sealing plate, positive plate, diaphragm and negative plate；Outer housing is the hollow cylinder of sealed bottom upper opening, sealing plate is equipped with above outer housing, and it is tightly connected by insulated enclosure circle and sealing plate, positive plate, diaphragm and negative plate, which are sequentially overlapped, is wound into cylinder, inside outer housing, positive plate and negative plate are coated with active membrane, enable battery to be large current discharge and meet need of work, electrolyte is filled in outer housing.High current Ni-MH battery provided by the utility model, the resistance that with the above current discharge of 20C multiplying powers, can measure battery at 20 DEG C after testing are 1.5m Ω hereinafter, discharge capacity is 93% of rated capacity or more.
Description
Technical field
The utility model is related to a kind of Ni-MH batteries, specifically, being related to a kind of high current Ni-MH battery.
Background technology
Metal-hydrogen nickel battery (MH2Ni) is a kind of novel high-energy to grow up on the basis of Disposal degree ickel-cadmium cell
Secondary cell.Due to higher energy density, good overcharging resisting discharge capability, and can be large current discharge, be easy sealing,
Memory-less effect and Environmental compatibility wait well excellent performances and receive favor.In recent years, with the raising of hydrogen storage material performance,
The function of Ni-MH battery must also improve the raising that could promote battery whole synthesis performance, to meet global information industry, movement
Communication, portable computer etc. rapidly develop the demand to battery.
But the discharge current size of existing Ni-MH battery is restricted, that there are battery capacities is low, internal resistance is larger, big electricity
The problems such as discharge effect is poor is flowed, the use for needing the high-power electric appliance of great current cell, electric vehicle etc. is influenced.
Utility model content
In order to solve above-mentioned deficiency in the prior art, the content of the utility model is to provide a kind of high current ni-mh electricity
Pond, to overcome defect in the prior art.
To achieve the goals above, the utility model provides a kind of high current Ni-MH battery, the high current ni-mh electricity
Pond includes：Outer housing, sealing plate, positive plate, diaphragm, negative plate, insulated enclosure circle, electrolyte, the annular electric installation of anode and
Negative conductive device；Wherein, outer housing be sealed bottom upper opening hollow cylinder, positive plate, diaphragm and negative plate according to
Secondary superposition is wound into cylinder, and is inserted in shell intracoelomic cavity along the cylinder axis；Sealing plate is equipped with above outer housing, and
And outer housing is tightly connected with sealing plate by insulated enclosure circle, it is upward convex at the center of sealing plate upper surface to be equipped with positive block,
Positive block is electrically connected by positive annular electric installation with positive plate；Ring plates successively from the inside to the outside in the positive electrode substrate of positive plate
There are anode electrode active membrane, anode that oxygen evolution activity film, anode is inhibited to promote electric discharge active membrane, positive conductive active membrane and anode protection
Film, the positive electrode substrate are copper sheet, the anode electrode active membrane, anode inhibit oxygen evolution activity film, anode promote electric discharge active membrane,
The thickness of positive conductive active membrane and positive protective film is respectively 10~15 microns, and overall thickness is 50~75 microns；；Diaphragm is single
The thickness of tunic, the diaphragm is 20~30 microns, and several micropores through the diaphragm are formed uniformly on the diaphragm；It is negative
Ring is coated with cathode high current alloy film, negative conductive active membrane and cathode protection successively from the inside to the outside on the cathode matrix of pole piece
Film, the thickness of the cathode high current alloy film, negative conductive active membrane and cathode protective film is respectively 10~15 microns, always
Thickness is 30~45 microns；The cathode matrix is the copper mesh of 180~200 mesh；Electrolyte is also filled in outer housing.It is described just
Extremely each layer active membrane and each layer active membrane of cathode enable battery and meet need of work to be large current discharge, and the high current is
Electric current more than 10C multiplying powers.
As the further explanation to high current Ni-MH battery described in the utility model, it is preferable that positive ring shaped conductive
Device includes several identical positive flow deflectors, collecting ring and confluence piece, several identical positive flow deflector one end welding
In positive plate upper edge, the flow deflector other end is welded to connect with collecting ring, and confluence piece, confluence piece and anode are welded on collecting ring
Block is electrically connected.
As the further explanation to high current Ni-MH battery described in the utility model, it is preferable that the anode electrode
Active membrane is made of nanoscale nickel hydroxide, and the anode inhibits oxygen evolution activity film to be made of copper powder and zinc powder, and the anode promotees
Electric discharge active membrane is made of calcium oxide, erbium oxide and magnesia, and the positive conductive active membrane is sub- by hydroxide cobalt, oxidation
At least one of cobalt, graphite powder are made, it is described anode protective film by polytetrafluoroethylene (PTFE), polyvinyl alcohol, polyurethane at least
One kind is made.It is highly preferred that the anode electrode active membrane is made of 15~20 parts by weight nanoscale nickel hydroxides, the anode
Inhibit oxygen evolution activity film be made of 3~4 parts by weight copper powders and 2.5~2.8 parts by weight zinc powders, it is described anode promote electric discharge active membrane by
1.2~1.7 parts by weight calcium oxide, 1.3~1.5 parts by weight erbium oxides and 0.6~0.8 parts by weight magnesia are made, the anode
Electrical conductive activities film is by 1.1~1.3 parts by weight hydroxide cobalts, 1.2~1.7 parts by weight cobalt protoxides, 2.2~2.5 parts by weight stones
At least one of ink powder is made, and the anode protective film is gathered by 1.5~1.8 parts by weight polytetrafluoroethylene (PTFE), 2.2~4 parts by weight
At least one of vinyl alcohol, 2.3~2.8 parts by weight of polyurethane are made.
As the further explanation to high current Ni-MH battery described in the utility model, it is preferable that the hole of the micropore
Diameter is 0.03~0.05 micron.
As the further explanation to high current Ni-MH battery described in the utility model, it is preferable that the diaphragm is by sulphur
Change polypropylene-nylon resin to be made.
As the further explanation to high current Ni-MH battery described in the utility model, it is preferable that the negative maximum electricity
Alloy film is flowed by (LaTiV)1.0(NiAlFeMn)2.5It is made, the negative conductive active membrane is by carbonyl nickel powder, cobalt protoxide, carbon
At least one of sour Asia cobalt is made, and the cathode protective film is by carboxymethyl cellulose, methylcellulose, Sodium Polyacrylate
At least one is made.It is highly preferred that the cathode high current alloy film is by 18~24 parts by weight (LaTiV)1.0(NiAlFeMn)2.5
It is made, the negative conductive active membrane is by 1.5~1.7 parts by weight carbonyl nickel powders, 0.5~0.8 parts by weight cobalt protoxide, 1~2 weight
At least one of amount part carbonic acid Asia cobalt is made, the cathode protective film by 0.3~0.5 parts by weight carboxymethyl cellulose, 1.2~
At least one of 1.4 parts by weight methylcellulose, 2~2.5 parts by weight of polypropylene acid sodium are made.
The utility model additionally provides the preparation method of the high current Ni-MH battery, includes the following steps：
Step 1)：Make positive plate：
Respectively by nanoscale nickel hydroxide, copper powder and zinc powder, calcium oxide, erbium oxide and magnesia, hydroxide cobalt, oxidation
At least one of sub- cobalt, graphite powder and at least one of polytetrafluoroethylene (PTFE), polyvinyl alcohol, polyurethane are electroplated onto anode
On matrix, through drying machine, dry, preforming roller rolls, after microtome, welds the annular electric installation of anode, positive plate is made；
Step 2)：Make negative plate：
Respectively by (LaTiV)1.0(NiAlFeMn)2.5Alloy, at least one in carbonyl nickel powder, cobalt protoxide, carbonic acid Asia cobalt
At least one of kind and carboxymethyl cellulose, methylcellulose, Sodium Polyacrylate are electroplated onto on cathode matrix, through drying
Machine is dry, preforming roller rolls, after microtome, welds negative conductive device, and negative plate is made；
Step 3)：Prepare electrolyte：
Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, stir and at room temperature cooling 12~
After for 24 hours, group is obtained as 60~80% potassium hydroxide, the electrolyte of 20~30% sodium hydroxides, 2~4% lithium hydroxides；
Step 4)：The assembly of battery：
Positive plate, diaphragm and negative plate are sequentially overlapped, are wound into cylinder, and keeps positive annular electric installation upward,
Negative conductive device is downward, is fitted into outer housing, then the electrolyte made is filled into outer housing, and covering sealing plate makes just
Polar ring shape electric installation is electrically connected with positive block, is sealed sealing plate and outer housing with the insulated enclosure circle with binder.
The utility model provides a kind of high current Ni-MH battery, and the battery after testing can be with the above electric current of 20C multiplying powers
Electric discharge, the resistance for measuring battery at 20 DEG C are 1.5m Ω hereinafter, discharge capacity is 93% of rated capacity or more.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model high current Ni-MH battery.
The reference numerals are as follows：
Outer housing 1, sealing plate 2, positive block 21, positive plate 3, diaphragm 4, negative plate 5, negative conductive device 51, insulation
The annular electric installation 8 of sealing ring 6, electrolyte 7, anode, positive flow deflector 81, collecting ring 82, confluence piece 83.
Specific implementation mode
In order to further appreciate that the structure, feature and other purposes of the utility model, in conjunction with appended preferable implementation
Example is accompanied by attached drawing, and detailed description are as follows, this attached drawing embodiment described is merely to illustrate the technical solution of the utility model, and
Non-limiting the utility model.
As shown in FIG. 1, FIG. 1 is the structural schematic diagram of the utility model high current Ni-MH battery, the high current ni-mh electricity
Pond includes：Outer housing 1, sealing plate 2, positive plate 3, diaphragm 4 and negative plate 5；Wherein, outer housing 1 is sealed bottom upper opening
Hollow cylinder, the top of outer housing 1 is equipped with sealing plate 2, upward convex at 2 upper surface center of sealing plate to be equipped with positive block 21,
Positive block 21 is electrically connected by positive annular electric installation 8 with positive plate 3, and outer housing 1 passes through insulated enclosure circle with sealing plate 2
6 are tightly connected, and positive plate 3, diaphragm 4 and negative plate 5, which are sequentially overlapped, to be wound into cylinder and be inserted in along the cylinder axis
Inside outer housing 1；Positive annular electric installation 8 is welded at the upper edge of positive plate 3, if anode annular electric installation 8 includes
Dry identical positive flow deflector 81, collecting ring 82 and confluence piece 83, described several identical positive flow deflector one end are welded on just
3 upper edge of pole piece, the flow deflector other end are welded to connect with collecting ring 82, and confluence piece 83 is welded on collecting ring 82, and converge piece 83
It is electrically connected with positive block 21.Multiply low current is pooled on collecting ring forms high current simultaneously by several identical flow deflectors,
Positive block is transferred to by confluence piece again, ring shaped conductive device improves the transmission rate of electric current, realize in the unit interval to
External high current power supply；Be welded with negative conductive device 9 at the lower edge of negative plate 5, negative conductive device 9 in outer housing 1
Bottom is electrically connected.
Diaphragm 4 is monofilm, and several micropores through the diaphragm, the hole of the micropore are formed uniformly on the diaphragm
Diameter is 0.03~0.05 micron, and the thickness of the diaphragm is 20~30 microns；The diaphragm is by sulfonation polypropylene-polyamide system resin
At.Diaphragm is made using single-layer resin film to reduce the internal resistance of cell, after the sulfonated hydrophily processing of polypropylene-polyamide resin film,
Electolyte-absorptive ability increases, and ion transport, internal resistance is promoted to reduce spray charging precipitator and improve；Microcellular structure can not only increase
Gas promotes ion transport, can also electrolyte be made fully to infiltrate, and increases the response area of electrolyte, increases exoelectrical reaction process.
Positive plate 3 is made of positive electrode substrate ring plating positive-active film, and the positive electrode substrate is copper sheet, the positive-active film
It respectively is first layer, the second layer, third layer, the 4th layer and layer 5 from the inside to the outside, the first layer is lived for anode electrode
Property film, the second layer be anode inhibit oxygen evolution activity film, the third layer be anode promote discharge active membrane, described 4th layer is
Positive conductive active membrane, the layer 5 are positive protective film；The thickness of the positive-active film be 50~75 microns, first
Layer, the second layer, third layer, the 4th layer and layer 5 thickness be respectively 10~15 microns.The anode electrode active membrane is by receiving
Meter level nickel hydroxide is made, and the anode inhibits oxygen evolution activity film to be made of copper powder and zinc powder, and the anode promotees electric discharge active membrane
It is made of calcium oxide, erbium oxide and magnesia, the positive conductive active membrane is by hydroxide cobalt, cobalt protoxide, graphite powder
At least one be made, it is described anode protective film be made of at least one of polytetrafluoroethylene (PTFE), polyvinyl alcohol, polyurethane.Just
The matrix of pole piece will not wound as Foamed Nickel and generating burr in cutting process using copper sheet, to avoid burr from piercing through
Diaphragm makes internal short-circuit of battery with cathode contact；Nano-sized nickel hydroxide particle size reduces, and specific surface area increases, and makes cation
Diffusion path shortens, and improves the electric conductivity of electrode, reduces the reaction impedance of electrode, improves the invertibity of electrode；Addition
Copper powder, zinc powder inhibit the oxygen evolution reaction of nickel hydroxide, improve the charge efficiency and active material utilization of electrode, metal powder is also
It can promote the electric conductivity of electrode；Positive conductive film promotes electrode conductivuty, improves Ni-MH battery heavy-current discharge effect.
5 ring of negative plate is coated with negative electrode active film, is made of cathode substrate ring plating negative electrode active film, the cathode matrix is
The copper mesh of 180~200 mesh, the negative electrode active film respectively are bottom, middle layer and outermost layer, the bottom from the inside to the outside
For cathode high current alloy film, the middle layer is negative conductive active membrane, and the outermost layer is cathode protective film；The cathode
The thickness of active membrane is 30~45 microns, and bottom, middle layer and outermost thickness are respectively 10~15 microns.The negative maximum
Electric current alloy film is by (LaTiV)1.0(NiAlFeMn)2.5Be made, the negative conductive active membrane by carbonyl nickel powder, cobalt protoxide,
At least one of carbonic acid Asia cobalt is made, and the cathode protective film is by carboxymethyl cellulose, methylcellulose, Sodium Polyacrylate
At least one be made.Addition iron, manganese element can not only promote negative discharge in cathode high current alloy film, but also will not be to electrode
Reaction interferes influence battery life；Negative conductive active membrane promotes the conduction of electric current, improves high-rate battery discharge
Effect；The cathode protective film is that metal generation burr puncture diaphragm makes internal short-circuit of battery in order to prevent.
The positive-active film and negative electrode active film enable battery to meet need of work to be large current discharge；Outer housing
Electrolyte 7 is also filled in 1.
Embodiment 1
Step 1)：Make positive plate：
Respectively by 15 grams of nanoscale nickel hydroxides (first layer, thickness are 10 microns), 3 grams of copper powders and 2.5 grams of zinc powders (second
Layer, thickness are 10 microns), 1.2 grams of calcium oxide, 1.3 grams of erbium oxides and 0.6 gram of magnesia (third layer, thickness are 10 microns),
1.1 grams of hydroxide cobalts, 1.2 grams of cobalt protoxides and 2.2 grams of graphite powders (the 4th layer, thickness is 10 microns), 1.5 grams of polytetrafluoroethyl-nes
Alkene, 2.2 grams of polyvinyl alcohol and 2.3 grams of polyurethane (layer 5, thickness are 10 microns) are electroplated onto on copper sheet successively, are made 50 microns
Thick positive-active film, through drying machine, dry, preforming roller rolls, after microtome, welds the annular electric installation of anode, is made
Positive plate；
Step 2)：Make negative plate：
Respectively by 18 grams (LaTiV)1.0(NiAlFeMn)2.5Alloy (bottom, thickness be 10 microns), 1.5 grams of carbonyl nickel powders,
0.5 gram of cobalt protoxide and 1 gram of carbonic acid Asia cobalt (middle layer, thickness are 10 microns), 0.3 gram of carboxymethyl cellulose, 1.2 grams of methyl fibres
Dimension element and 2 grams of Sodium Polyacrylates (outermost layer, thickness are 10 microns) are electroplated onto successively on the copper mesh of 180 mesh, and 30 microns of thickness are made
Negative electrode active film, through drying machine, dry, preforming roller rolls, after microtome, welds negative conductive device, and cathode is made
Piece；
Step 3)：Prepare electrolyte：
Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, after stirring and cooling down 12h at room temperature,
Group is obtained as 60% potassium hydroxide, the electrolyte of 20% sodium hydroxide, 2% lithium hydroxide；
Step 4)：The assembly of battery：
Successively by positive plate, sulfonation polypropylene-nylon resin diaphragm of 20 microns of 0.03 micron thickness of aperture and negative plate
It is superimposed, is wound into cylinder, and keep positive annular electric installation upward, negative conductive device is downward, is fitted into outer housing, then will
The electrolyte made is filled into outer housing, and covering sealing plate makes positive annular electric installation be electrically connected with positive block, uses
Insulated enclosure circle with binder seals sealing plate and outer housing.
At 20 DEG C, by the battery made first with 0.5C multiplying powers charging 500min, then with 20C multiplying power dischargings to 1V cut-offs
Voltage, it is 1.5m Ω to measure resistance using internal resistance test device, and discharge capacity is the 93% of rated capacity.
Embodiment 2~4
According to the preparation method of the high current Ni-MH battery of embodiment 1, following three kinds of high current Ni-MH batteries are prepared, specifically
Experimental result is shown in Table 1.
The electrode of 1 embodiment of table, 2~4 high current Ni-MH battery forms and test result
Embodiment 5
Step 1)：Make positive plate：
Respectively by 20 grams of nanoscale nickel hydroxides (first layer, thickness are 15 microns), 4 grams of copper powders and 2.8 grams of zinc powders (second
Layer, thickness are 15 microns), 1.7 grams of calcium oxide, 1.5 grams of erbium oxides and 0.8 gram of magnesia (third layer, thickness are 15 microns),
1.3 grams of hydroxide cobalts, 1.7 grams of cobalt protoxides and 2.5 grams of graphite powders (the 4th layer, thickness is 15 microns), 1.8 grams of polytetrafluoroethyl-nes
Alkene, 4 grams of polyvinyl alcohol and 2.8 grams of polyurethane (layer 5, thickness are 15 microns) are electroplated onto on copper sheet successively, and 75 microns of thickness are made
Positive-active film, through drying machine, dry, preforming roller rolls, after microtome, welds the annular electric installation of anode, is made just
Pole piece；
Step 2)：Make negative plate：
Respectively by 24 grams (LaTiV)1.0(NiAlFeMn)2.5Alloy (bottom, thickness be 15 microns), 1.7 grams of carbonyl nickel powders,
0.8 gram of cobalt protoxide and 2 grams of carbonic acid Asia cobalts (middle layer, thickness are 15 microns), 0.5 gram of carboxymethyl cellulose, 1.4 grams of methyl fibres
Dimension element and 2.5 grams of Sodium Polyacrylates (outermost layer, thickness are 15 microns) are electroplated onto successively on the copper mesh of 200 mesh, are made 45 microns
Thick negative electrode active film, through drying machine, dry, preforming roller rolls, after microtome, welds negative conductive device, and cathode is made
Piece；
Step 3)：Prepare electrolyte：
Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, after stirring and at room temperature cooling for 24 hours,
Group is obtained as 80% potassium hydroxide, the electrolyte of 30% sodium hydroxide, 4% lithium hydroxide；
Step 4)：The assembly of battery：
Successively by positive plate, sulfonation polypropylene-nylon resin diaphragm of 30 microns of 0.05 micron thickness of aperture and negative plate
It is superimposed, is wound into cylinder, and keep positive annular electric installation upward, negative conductive device is downward, is fitted into outer housing, then will
The electrolyte made is filled into outer housing, and covering sealing plate makes positive annular electric installation be electrically connected with positive block, uses
Insulated enclosure circle with binder seals sealing plate and outer housing.
At 20 DEG C, by the battery made first with 0.5C multiplying powers charging 500min, then with 20C multiplying power dischargings to 1V cut-offs
Voltage, it is 1.2m Ω to measure resistance using internal resistance test device, and discharge capacity is the 95% of rated capacity.
Embodiment 6~8
According to the preparation method of the high current Ni-MH battery of embodiment 5, following three kinds of high current Ni-MH batteries are prepared, specifically
Experimental result is shown in Table 2.
The electrode of 2 embodiment of table, 6~8 high current Ni-MH battery forms and test result
Embodiment 9
Step 1)：Make positive plate：
Respectively by 18 grams of nanoscale nickel hydroxides (first layer, thickness be 13 microns), 3.5 grams of copper powders and 2.6 grams of zinc powders (the
Two layers, thickness is 13 microns), 1.4 grams of calcium oxide, 1.4 grams of erbium oxides and 0.7 gram of magnesia (third layer, thickness are 13 microns),
1.2 grams of hydroxide cobalts, 1.5 grams of cobalt protoxides and 2.3 grams of graphite powders (the 4th layer, thickness is 13 microns), 1.6 grams of polytetrafluoroethyl-nes
Alkene, 3 grams of polyvinyl alcohol and 2.5 grams of polyurethane (layer 5, thickness are 13 microns) are electroplated onto on copper sheet successively, and 65 microns of thickness are made
Positive-active film, through drying machine, dry, preforming roller rolls, after microtome, welds the annular electric installation of anode, is made just
Pole piece；
Step 2)：Make negative plate：
Respectively by 20 grams (LaTiV)1.0(NiAlFeMn)2.5Alloy (bottom, thickness be 13 microns), 1.6 grams of carbonyl nickel powders,
0.6 gram of cobalt protoxide and 1.5 grams of carbonic acid Asia cobalts (middle layer, thickness are 13 microns), 0.4 gram of carboxymethyl cellulose, 1.3 grams of methyl
Cellulose and 2.3 grams of Sodium Polyacrylates (outermost layer, thickness are 13 microns) are electroplated onto successively on the copper mesh of 200 mesh, and it is micro- to be made 39
The thick negative electrode active film of rice, through drying machine, dry, preforming roller rolls, after microtome, welds negative conductive device, is made negative
Pole piece；
Step 3)：Prepare electrolyte：
Potassium hydroxide, sodium hydroxide, lithium hydroxide are dissolved in deionized water, after stirring and cooling down 18h at room temperature,
Group is obtained as 70% potassium hydroxide, the electrolyte of 25% sodium hydroxide, 3% lithium hydroxide；
Step 4)：The assembly of battery：
Successively by positive plate, sulfonation polypropylene-nylon resin diaphragm of 25 microns of 0.04 micron thickness of aperture and negative plate
It is superimposed, is wound into cylinder, and keep positive annular electric installation upward, negative conductive device is downward, is fitted into outer housing, then will
The electrolyte made is filled into outer housing, and covering sealing plate makes positive annular electric installation be electrically connected with positive block, uses
Insulated enclosure circle with binder seals sealing plate and outer housing.
At 20 DEG C, by the battery made first with 0.5C multiplying powers charging 500min, then with 20C multiplying power dischargings to 1V cut-offs
Voltage, it is 1.1m Ω to measure resistance using internal resistance test device, and discharge capacity is the 96% of rated capacity.
Embodiment 10~12
According to the preparation method of the high current Ni-MH battery of embodiment 9, following three kinds of high current Ni-MH batteries are prepared, specifically
Experimental result is shown in Table 2.
The electrode of 3 embodiment of table, 10~12 high current Ni-MH battery forms and test result
It is to be understood that above-mentioned utility model content and specific implementation mode are intended to prove the provided skill of the utility model
The practical application of art scheme should not be construed as the restriction to scope of protection of the utility model.Those skilled in the art are in this practicality
In novel spirit and principle, when can various modifications may be made, equivalent replacement or improvement.The scope of protection of the utility model is with appended power
Subject to sharp claim.
Claims (6)
1. a kind of high current Ni-MH battery, which is characterized in that the high current Ni-MH battery includes：Outer housing (1), sealing plate
(2), the annular electric installation (8) of positive plate (3), diaphragm (4), negative plate (5), insulated enclosure circle (6), electrolyte (7), anode and
Negative conductive device (9)；Wherein,
Outer housing (1) is the hollow cylinder of sealed bottom upper opening, and positive plate (3), diaphragm (4) and negative plate (5) are successively
Superposition is wound into cylinder, and is inserted in outer housing (1) inner cavity along the cylinder axis, is welded at the lower edge of negative plate (5)
It is connected to negative conductive device (9), negative conductive device (9) is electrically connected with outer housing (1) interior bottom；
Sealing plate (2) is equipped with above outer housing (1), outer housing (1) is tightly connected with sealing plate (2) by insulated enclosure circle (6),
Upward convex at sealing plate (2) upper surface center to be equipped with positive block (21), positive block (21) passes through positive annular electric installation
(8) it is electrically connected with positive plate (3)；
Ring is coated with anode electrode active membrane to positive plate (3), anode inhibits oxygen evolution activity film, anode promotees electric discharge and lives successively from the inside to the outside
Property film, positive conductive active membrane and positive protective film；The anode electrode active membrane, anode inhibit oxygen evolution activity film, anode to promote
The thickness for the active membrane, positive conductive active membrane and positive protective film of discharging is respectively 10~15 microns, and overall thickness is 50~75 micro-
Rice；Diaphragm (4) is monofilm, and the thickness of the diaphragm is 20~30 microns, has been formed uniformly on the diaphragm several through institute
State the micropore of diaphragm；Ring is coated with cathode high current alloy film, negative conductive active membrane and cathode to negative plate (5) successively from the inside to the outside
The thickness of protective film, the cathode high current alloy film, negative conductive active membrane and cathode protective film is respectively 10~15 microns,
Overall thickness is 30~45 microns；It is also filled with electrolyte (7) in outer housing (1).
2. high current Ni-MH battery as described in claim 1, which is characterized in that anode annular electric installation (8) includes several
Identical anode flow deflector (81), collecting ring (82) and confluence piece (83), several identical positive flow deflector one end welding
In positive plate (3) upper edge, the flow deflector other end is welded to connect with collecting ring (82), and collecting ring is welded with confluence piece on (82)
(83), confluence piece (83) is electrically connected with positive block (21).
3. high current Ni-MH battery as described in claim 1, which is characterized in that the anode electrode active membrane is by nanoscale hydrogen
Nickel oxide is made, and the anode inhibits oxygen evolution activity film to be made of copper powder and zinc powder, and the anode promotees electric discharge active membrane by aoxidizing
Calcium, erbium oxide and magnesia are made, the positive conductive active membrane by hydroxide cobalt, cobalt protoxide, graphite powder at least
One kind is made, and the anode protective film is made of at least one of polytetrafluoroethylene (PTFE), polyvinyl alcohol, polyurethane.
4. high current Ni-MH battery as described in claim 1, which is characterized in that the aperture of the micropore is 0.03~0.05 micro-
Rice.
5. high current Ni-MH battery as described in claim 1, which is characterized in that the diaphragm is by sulfonation polypropylene-nylon tree
Fat is made.
6. high current Ni-MH battery as described in claim 1, which is characterized in that the cathode high current alloy film by
(LaTiV)1.0(NiAlFeMn)2.5It is made, the negative conductive active membrane is by carbonyl nickel powder, cobalt protoxide, carbonic acid Asia cobalt
At least one is made, and the cathode protective film is made by least one of carboxymethyl cellulose, methylcellulose, Sodium Polyacrylate
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924174.2U CN207637940U (en) | 2017-12-29 | 2017-12-29 | A kind of high current Ni-MH battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924174.2U CN207637940U (en) | 2017-12-29 | 2017-12-29 | A kind of high current Ni-MH battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207637940U true CN207637940U (en) | 2018-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721924174.2U Active CN207637940U (en) | 2017-12-29 | 2017-12-29 | A kind of high current Ni-MH battery |
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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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