CN101154723A - Method of producing anode composite material of nickel series secondary battery and products produced thereby - Google Patents
Method of producing anode composite material of nickel series secondary battery and products produced thereby Download PDFInfo
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- CN101154723A CN101154723A CNA2007100280943A CN200710028094A CN101154723A CN 101154723 A CN101154723 A CN 101154723A CN A2007100280943 A CNA2007100280943 A CN A2007100280943A CN 200710028094 A CN200710028094 A CN 200710028094A CN 101154723 A CN101154723 A CN 101154723A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a preparation method for anode composite material of nickel series secondary battery of stable capacity, high power and good circulation performance and nickel series secondary alkalescence battery product with high multiplying power discharging performance by the anode composite material. The prior nickel series battery uses the foaming nickel as conductive base to cause the high cost. The common nickel battery by steel belt or steel net as conductive base is of small capacity, short life-span and instable work. The invention adopts the mixture of spherical nickel hydroxide, main conductor graphite power and little cobalt compound. The anode composite material of strong sizing strength and high capacity is prepared by special preparing method. The nickel series secondary battery made by the composite material merely uses the steel belt or steel net as the conductive base to have high capacity using rate, discharging performance of high multiplying power and long life-span. The invention is widely applicable to various nickel series secondary alkalescence battery.
Description
Technical field
The present invention relates to the preparation method of anode composite material of a kind of nickel series secondary battery, particularly a kind of nickel series secondary battery and the nickel series secondary alkalescence battery product that utilizes this anode composite material to produce.
Background technology
Under normal conditions, the positive pole of nickel series adopts highdensity hickelous nydroxide as active material, adopt simultaneously porosity at the foaming nickel metal more than 95% as the conductive fill body, therefore have than the higher energy density of ordinary sinter formula pole plate, can make the pole piece of high power capacity.But because metal price rises steadily in the recent period, especially the nickel valency constantly raises, cause the cost of nickel series battery to be multiplied, for reducing cost, a lot of battery products all seek to use other cheap electric conducting material to substitute as expensive metal such as the foaming nickel of main conducting objects and cobalts, but because the own conductive capability of producing of spherical inferior nickel product is not strong usually, must be by formation conductive layers such as inferior cobalts, the electric conducting material of three-dimensional structures such as dependence foaming nickel just can be given full play to capacity, and production cost is difficult to descend; And when using conductive materials such as steel band steel mesh,, therefore can not bring into play capacity fully effectively because each ball nickel particle of structural factor can not fully contact the formation conductive layer, if directly add conducting objects such as nickel powder again, will cause cost to rise again; And if just use graphite or other carbon material to be conductive agent simply because the low battery that can not produce high power capacity of the density of graphite, conductive capability is limited, battery performance is not good, can not adapt to the demand of high-end market; And the constantly expansion contraction in charge and discharge process of common positive electrode, cause active material to come off easily, cause shorten the useful life of battery, not only also relatively increased cost from another point of view, its residue also can pollute environment.
Summary of the invention
At the problems referred to above, the invention provides a kind of preparation method of anode composite material that can produce that a kind of capacity is big, intensity is high, discharge performance is good and have the nickel series secondary battery in permanent useful life, and use this anode composite material not use foaming nickel and directly use steel band or steel mesh promptly to can be made into can the long-life nickel series secondary alkalescence battery of high-multiplying power discharge product.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of anode composite material of nickel series secondary battery, this anode composite material is formed by spherical hickelous nydroxide, main conductive agent powdered graphite and little cobalt compound, its weight proportion is: spherical hickelous nydroxide 40%～97%, main conductive agent powdered graphite 3%～50%, little cobalt compound 0%～10%, and its preparation method is:
A) with wet method or dry method said components is fully mixed in advance;
B) with A) described in mixture mix pressurized treatments again by powder grinder or same category of device, pressure limit is controlled at 0.5～50Mpa;
C) with B) described in mixture through pulverizing or cutting is handled;
D) with C) described in mixture adjust by common water soluble adhesive, make positive plate by wet method slurry process using steel band or steel mesh as conducting base.
The particle diameter of described main conductive agent powdered graphite is between 5～800um.
The fineness of described mixture after pulverizing or cutting can be crossed 40～300 purpose dry screen or wet screenings.
Described spherical hickelous nydroxide particle surface all is covered with the powdered graphite as conductive agent.
Described powdered graphite can substitute with other conductive powders such as conductive carbon blacks.
Described cobalt compounds can add or not add less.
Described powder grinder can wherein one or more substitute with roller or high-speed mixer or high-speed cutting machine or ball mill or high velocity air grinding machine.
A kind of nickel series secondary alkalescence battery, anode are the positive plates that above-mentioned anode composite material is made by wet method slurry technology, and conducting base then adopts Punching steel strip or steel mesh or burr steel belt wherein a kind of and do not use foaming nickel.
Described a kind of nickel series secondary alkalescence battery can form the secondary cell of nickeliferous series such as Ni-MH battery, nickel-cadmium cell, nickel-zinc cell by cooperating different negative materials.
The invention has the beneficial effects as follows: because the anode composite material of this nickel series secondary battery at first directly fully mixes with dry method or wet method, by extruding or high-speed cutting conductive component is filled again and be distributed to the surperficial and inner of each inferior nickel particle, the particle of while compressed mixed powder, make each spherical hickelous nydroxide particle surface all be covered with powdered graphite as conductive agent, the nickel series secondary battery that utilizes this composite material to make has high capacity and powerful discharge performance; Because the anode composite material of this nickel series secondary battery has passed through special pressurization cutting way composite material is fully mixed a kind of powder in addition, only need during the preparation positive plate these mixtures are adjusted by common water soluble adhesive, just can obtain a kind of intensity height, flexible good positive plate, the nickel series secondary battery intensity height, the capacity that utilize this positive plate to make are big, long service life.
Description of drawings
Fig. 1 is that battery " A " is charged to-DV=10mV with 2400mAh, and 2400mAh discharges into the charging and discharging curve of 1.0V;
Fig. 2 is that battery " A " is charged to-DV=10mV with 2400mAh, and 2400mAh discharges into the life curve that discharges and recharges of 1.0V;
Fig. 3 is that battery " A " is charged to-DV=10mV with 2400mA, and 24000mA discharges into the discharge curve of 1.0V;
Fig. 4 is a battery " A " with 150mAh charging 20H, and 12000mAh discharges into the discharge capacity of 0.8V;
Fig. 5 is a B battery 5C discharge cycles comparison diagram;
Fig. 6 is B battery 1C charging 5C discharge charging and discharging curve;
Fig. 7 is a B battery 10C discharge cycles powder capacity comparison diagram;
Fig. 8 is put cyclic curve figure for B battery 1C fills 10C.
Embodiment
A kind of anode composite material of nickel series secondary battery, this anode composite material is formed by spherical hickelous nydroxide, main conductive agent powdered graphite and little cobalt compound, its weight proportion is: spherical hickelous nydroxide 40%～97%, main conductive agent powdered graphite 3%～50%, little cobalt compound 0%～10%, and its preparation method is:
A) with wet method or dry method said components is fully mixed in advance;
B) with A) described in mixture mix pressurized treatments again by grinder or same category of device;
Pressure limit is controlled at 0.5～50Mpa since less than the insufficient pressure of 0.5Mpa in the change that constitutes powder property, too high pressure causes the too small high rate discharge ability that influences of the surface area of active material.
C) with B) described in mixture through pulverizing or cutting is handled;
D) with C) described in mixture adjust by common water soluble adhesive, make positive plate by wet method slurry technology.
The anode composite material of a kind of nickel series secondary battery of the present invention, the particle diameter of main conductive agent powdered graphite is between 5～800 μ m.If it is higher and be not easy even dispersion that particle diameter is not easy to obtain cost less than this material of 5 μ m, if particle diameter is not easy to obtain the uniform conductive layer greater than 800 μ m very much on inferior nickel particle.
The anode composite material of a kind of nickel series secondary battery of the present invention, the fineness of this mixture can be crossed 40～300 purpose dry screen or wet screenings.Because the too little electrolyte of surface area is difficult for fully infiltrating active material inside, cause the capacity utilance low, the shortcoming that the internal resistance of cell is big greater than 40 purpose materials.Be difficult to obtain less than 300 purpose size ratios, too small particle diameter can cause material to lose strength stability in charge and discharge process causing it to separate with matrix, influence battery life simultaneously
The anode composite material of a kind of nickel series secondary battery of the present invention, the spherical hickelous nydroxide particle surface all is covered with the powdered graphite as conductive agent.Because only in this way just can give full play to the capacity of battery material,, and make battery have little internal resistance and large current discharging capability even if there be not cobalt to do also can give full play to battery capacity on the basis of electric conducting material.
The anode composite material of a kind of nickel series secondary battery of the present invention, main conductive agent powdered graphite can substitute with conductive carbon black.Because they have identical conductivity principle, the just cheap more and acquisition easily of powdered graphite, the therefore preferred graphite powder that uses.
The anode composite material of a kind of nickel series secondary battery of the present invention, cobalt compounds can add or not add less.Cobalt compound in the nickel positive electrode is mainly as electric action, in the common positive electrode in conductivity is relatively poor, the electrode capacity utilance that does not add cobalt chemical combination is extremely low, can only bring into play the 50%-70% of its normal capacity, but use the prepared electrode of anode composite material of the present invention to possess enough conductive capabilities, therefore can add or not add cobalt compound less.
The anode composite material of a kind of nickel series secondary battery of the present invention, it is characterized in that the pressure that is provided can come from roller or high speed putty-chaser-type mixer or high-speed cutting machine or ball mill wherein one or more.Because electric conducting material is in the appearance of inferior nickel particle and innerly can both form conductive layer the characteristic of battery material is given full play under certain high speed and high pressure.
A kind of nickel series secondary alkalescence battery, comprise that critical pieces such as anode, battery cathode, battery diaphragm, battery steel shell, battery cover, sealed nylon circle, both positive and negative polarity flow collection sheet and alkaline electrolyte constitute, anode of the present invention is the positive plate that above-mentioned anode composite material is made by wet method slurry technology, conducting base then adopt Punching steel strip or steel mesh or burr steel belt wherein one or more etc. material constitute.Have little internal resistance, possess good high-rate discharge ability and cycle life characteristics by the battery that makes with upper type and use material of the present invention.In addition,, therefore only need to use steel band or steel mesh can obtain excellent battery performance, no longer need to use expensive foamed nickel material because material of the present invention has possessed sufficient conductive capability.Simultaneously powder of the present invention to the controlling for particle diameter density of material, uses the slurry technology of routine can obtain good starching intensity.
Described a kind of nickel series secondary alkalescence battery is characterized in that by adding the secondary cell that different small amounts of metal compounds can form nickeliferous series such as Ni-MH battery, nickel-cadmium cell, nickel-zinc cell.
Below will by embodiment further specify nickel series secondary battery of the present invention anode composite material the preparation method and utilize every performance characteristics of the nickel series secondary battery that this anode composite material produces:
1. anodal: by 50～90 parts spherical hickelous nydroxide, 0～10 part cobalt or cobalt compound, the powdered graphite or the conductive carbon black class additive of 3～50 parts conduct master conductive agent constitute anodal mixed powder, these mixtures are directly fully mixed with dry powder or wet method, by extruding or high-speed cutting conductive component is filled again and be distributed to the surperficial and inner of each inferior nickel particle, the particle of compressed mixed powder makes inferior nickel have the highest capacity performance and suitable volume simultaneously;
2. powder or the slurry with machine-shaping adds CMC, PVA, water soluble adhesive mixing pulpings such as PEO, MC, and the amount of bonding agent is between 0.5%-5% (siccative weight ratio);
3. oven dry rolls suitable thickness after the slurry for preparing being scraped the slurry mould and obtained suitable weight by one, and thickness range is chosen between 0.5-1.0mm.
4. negative pole: can adopt the common adhered negative pole or the negative pole of dry production, the material of negative pole can use cadmium or cadmium oxide or hydrogen-storage alloy powder. and the manufacture of negative pole can adopt any-modes such as wet method or dry-press process.
5. barrier film: can select for use any one to have nylon or polypropylene diaphragm or their compound and other product that anti-highly basic has gas permeability by chemistry or physical method modification.In nickel-cadmium cell, can also select for use homemade Wei Nilun also not influence effect of the present invention in order to reduce cost,
6. electric liquid: one or more different mining by the battery performance requirement in electric liquid available hydrogen lithia, NaOH, the potassium hydroxide mix with different proportionings, for some performance of strengthening battery can also add a small amount of rare earth or alkaline-earth metal or its ion.The concentration of electrolyte can be chosen in the scope of 6～11N/L.
7. above-mentioned qualified positive/negative plate and barrier film are tailored into the specification of common C battery, wherein the weight of positive electrode material is at 14～16 grams, the weight of negative electrode active material is at 13.5～14.5 grams, with above-mentioned positive/negative plate and barrier film, barrier film optimization polypropylene class, combine volume coiled utmost point group, both positive and negative polarity burn-on respectively flow collection sheet or lug, the utmost point is assembled in the battery steel shell, the electric liquid that reinjects and prepare, electrolyte content can be chosen in 5～9 gram scopes.To have the battery cap of safety device on the battery point, the safety valve pressure of battery cap is chosen in the scope of 1.5～3Mpa.
Adopt the method for constant current or pulse to discharge and recharge cashier's office in a shop changing on prepared battery, charge-discharge magnification can be chosen in the scope of 0.1C～1C, preferred 0.1C～0.5C.In fact the formation process of battery can because material of the present invention has very high activity, can change into than finishing quickly with the foaming nickel-based battery of spline structure with once charging and discharging or single step of releasing fills or the method that repeatedly charges and discharge is carried out.
Change into finish can replenish the battery of making the electricity and partial volume to obtain qualified battery.With the electric called after battery of this kind " A ", its performance characteristics test result please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4.
8, step 1-7 is repeated positive plate is cut into the 32*205*0.60 size, use the amount of material of the present invention to restrain at 7-8. negative pole uses pull pulp type negative pole Main Ingredients and Appearance to be cadmium oxide and sponge attitude cadmium, negative pole is of a size of 255*32*0.40, and the weight of negative electrode active material is the 8-9 gram;
9, positive/negative plate is wound into a standard SC1300MAH utmost point group together with barrier film, and at flow collection sheet of each spot welding of both positive and negative polarity, battery is put into the NaOH potassium hydroxide that injects the 6N about 6 grams in the box hat of a standard SC and the mixed electrolytic solution of lithium, and be packaged into the SC type battery of a standard, be referred to as battery " B ", its performance characteristics test result is with reference to figure 5, Fig. 6, Fig. 7, Fig. 8.
10, with above-mentioned battery A that makes and the optional 0.1C～1C of B electricizing activation electric current, preferred 0.5C, through charge and discharge for 1-2 time obtain suitable capacity after, with battery respectively with 1C charging 72 minutes, respectively with 5C (6.5A) (with reference to subordinate list 1) and 10C (13A) discharge following result. (with reference to subordinate list 2)
Powder body material of the present invention can be obtained result with the NI-G unanimity as the positive electrode of Ni-MH battery, no longer exemplify here.
Subordinate list 1:B battery 5C discharge data:
| The n station | Cycle-index | Work step number | Operating state | Set electric current | Middle threshold voltage | The termination capacity | Termination time | Stop electric current |
| 1 | 1 | 4 | Constant-current discharge | 6500.000 | 1.157 | 1206.298 | 11.13 | 6500.00 |
| 2 | 4 | Constant-current discharge | 6500.000 | 1.162 | 1221.240 | 11.27 | 6504.00 | |
| 3 | 4 | Constant-current discharge | 6500.000 | 1.166 | 1224.693 | 11.30 | 6504.00 | |
| 4 | 4 | Constant-current discharge | 6500.000 | 1.168 | 1224.880 | 11.30 | 6504.00 | |
| 5 | 4 | Constant-current discharge | 6500.000 | 1.169 | 1231.701 | 11.37 | 6502.00 | |
| 6 | 4 | Constant-current discharge | 6500.000 | 1.171 | 1237.602 | 11.37 | 6500.00 | |
| 7 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1239.091 | 11.43 | 6500.00 | |
| 8 | 4 | Constant-current discharge | 6500.000 | 1.171 | 1239.145 | 11.43 | 6500.00 | |
| 9 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1242.409 | 11.47 | 6500.00 | |
| 10 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1242.716 | 11.47 | 6500.00 | |
| 11 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1245.913 | 11.50 | 6500.00 | |
| 12 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1252.102 | 11.47 | 6500.00 | |
| 13 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1249.829 | 11.53 | 6502.00 | |
| 14 | 4 | Constant-current discharge | 6500.000 | 1.175 | 1253.349 | 11.57 | 6500.00 | |
| 15 | 4 | Constant-current discharge | 6500.000 | 1.177 | 1253.907 | 11.57 | 6504.00 | |
| 16 | 4 | Constant-current discharge | 6500.000 | 1.174 | 1253.296 | 11.57 | 6500.00 | |
| 17 | 4 | Constant-current discharge | 6500.000 | 1.175 | 1253.960 | 11.57 | 6504.00 | |
| 18 | 4 | Constant-current discharge | 6500.000 | 1.174 | 1257.133 | 11.60 | 6502.00 | |
| 19 | 4 | Constant-current discharge | 6500.000 | 1.175 | 1257.053 | 11.60 | 6502.00 | |
| 20 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1257.520 | 11.60 | 6504.00 | |
| 21 | 4 | Constant-current discharge | 6500.000 | 1.174 | 1257.520 | 11.60 | 6504.00 | |
| 22 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1257.400 | 11.60 | 6504.00 | |
| 23 | 4 | Constant-current discharge | 6500.000 | 1.176 | 1257.440 | 11.60 | 6504.00 | |
| 24 | 4 | Constant-current discharge | 6500.000 | 1.174 | 1257.200 | 11.60 | 6500.00 | |
| 25 | 4 | Constant-current discharge | 6500.000 | 1.176 | 1260.664 | 11.63 | 6500.00 | |
| 26 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1264.182 | 11.67 | 6500.00 | |
| 27 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1267.767 | 11.70 | 6500.00 | |
| 28 | 4 | Constant-current discharge | 6500.000 | 1.175 | 1268.638 | 11.63 | 6500.00 | |
| 29 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1264.358 | 11.67 | 6502.00 | |
| 30 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1264.278 | 11.67 | 6502.00 | |
| 31 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1267.987 | 11.70 | 6504.00 | |
| 32 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1267.970 | 11.70 | 6502.00 | |
| 33 | 4 | Constant-current discharge | 6500.000 | 1.170 | 1268.213 | 11.70 | 6504.00 | |
| 34 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1268.213 | 11.70 | 6504.00 | |
| 35 | 4 | Constant-current discharge | 6500.000 | 1.171 | 1268.240 | 11.70 | 6504.00 | |
| 36 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1267.637 | 11.70 | 6502.00 | |
| 37 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1267.740 | 11.70 | 6500.00 | |
| 38 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1267.633 | 11.70 | 6500.00 | |
| 39 | 4 | Constant-current discharge | 6500.000 | 1.172 | 1268.280 | 11.70 | 6504.00 | |
| 40 | 4 | Constant-current discharge | 6500.000 | 1.171 | 1271.871 | 11.73 | 6500.00 | |
| 41 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1271.351 | 11.73 | 6500.00 | |
| 42 | 4 | Constant-current discharge | 6500.000 | 1.173 | 1271.436 | 11.73 | 6502.00 |
Subordinate list 2 B battery 10C discharge test data:
| The n station | Cycle-index | Work step number | Operating state | Set electric current | Middle threshold voltage | The termination capacity | Termination time | Stop electric current |
| 1 | 1 | 4 | Constant-current discharge | 6500.000 | 1.139 | 1112.840 | 10.27 | 6504.00 |
| 2 | 4 | Constant-current discharge | 13000.000 | 1.071 | 1090.630 | 5.03 | 13002.00 | |
| 3 | 4 | Constant-current discharge | 13000.000 | 1.079 | 1119.618 | 5.17 | 13000.00 | |
| 4 | 4 | Constant-current discharge | 13000.000 | 1.084 | 1134.062 | 5.23 | 13000.00 | |
| 5 | 4 | Constant-current discharge | 13000.000 | 1.091 | 1141.367 | 5.27 | 13002.00 | |
| 6 | 4 | Constant-current discharge | 13000.000 | 1.095 | 1148.590 | 5.30 | 13002.00 | |
| 7 | 4 | Constant-current discharge | 13000.000 | 1.097 | 1148.590 | 5.30 | 13002.00 | |
| 8 | 4 | Constant-current discharge | 13000.000 | 1.098 | 1154.500 | 5.30 | 13004.00 | |
| 9 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1163.090 | 5.37 | 13002.00 | |
| 10 | 4 | Constant-current discharge | 13000.000 | 1.102 | 1163.069 | 5.37 | 13004.00 | |
| 11 | 4 | Constant-current discharge | 13000.000 | 1.105 | 1163.098 | 5.37 | 13000.00 | |
| 12 | 4 | Constant-current discharge | 13000.000 | 1.106 | 1162.917 | 5.37 | 13002.00 | |
| 13 | 4 | Constant-current discharge | 13000.000 | 1.101 | 1163.149 | 5.37 | 13004.00 | |
| 14 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.540 | 5.40 | 13002.00 | |
| 15 | 4 | Constant-current discharge | 13000.000 | 1.104 | 1170.160 | 5.40 | 13000.00 | |
| 16 | 4 | Constant-current discharge | 13000.000 | 1.102 | 1170.367 | 5.40 | 13002.00 | |
| 17 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.180 | 5.40 | 13002.00 | |
| 18 | 4 | Constant-current discharge | 13000.000 | 1.101 | 1170.320 | 5.40 | 13004.00 | |
| 19 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.720 | 5.40 | 13004.00 | |
| 20 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.360 | 5.40 | 13004.00 | |
| 21 | 4 | Constant-current discharge | 13000.000 | 1.099 | 1170.440 | 5.40 | 13004.00 | |
| 22 | 4 | Constant-current discharge | 13000.000 | 1.103 | 1177.544 | 5.43 | 13004.00 | |
| 23 | 4 | Constant-current discharge | 13000.000 | 1.102 | 1177.483 | 5.43 | 13002.00 | |
| 24 | 4 | Constant-current discharge | 13000.000 | 1.108 | 1177.443 | 5.43 | 13002.00 | |
| 25 | 4 | Constant-current discharge | 13000.000 | 1.106 | 1177.457 | 5.43 | 13002.00 | |
| 26 | 4 | Constant-current discharge | 13000.000 | 1.101 | 1177.510 | 5.43 | 13002.00 | |
| 27 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1177.491 | 5.43 | 13004.00 | |
| 28 | 4 | Constant-current discharge | 13000.000 | 1.098 | 1177.763 | 5.43 | 13002.00 | |
| 29 | 4 | Constant-current discharge | 13000.000 | 1.102 | 1177.483 | 5.43 | 13002.00 | |
| 30 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1177.763 | 5.43 | 13002.00 | |
| 31 | 4 | Constant-current discharge | 13000.000 | 1.102 | 1177.518 | 5.43 | 13004.00 | |
| 32 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1179.824 | 5.43 | 13004.00 | |
| 33 | 4 | Constant-current discharge | 13000.000 | 1.101 | 1177.544 | 5.43 | 13004.00 | |
| 34 | 4 | Constant-current discharge | 13000.000 | 1.099 | 1170.340 | 5.40 | 13002.00 | |
| 35 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.087 | 5.40 | 13002.00 | |
| 36 | 4 | Constant-current discharge | 13000.000 | 1.099 | 1170.113 | 5.40 | 13002.00 | |
| 37 | 4 | Constant-current discharge | 13000.000 | 1.098 | 1170.187 | 5.40 | 13000.00 | |
| 38 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1177.489 | 5.43 | 13000.00 | |
| 39 | 4 | Constant-current discharge | 13000.000 | 1.100 | 1170.593 | 5.40 | 13002.00 | |
| 40 | 4 | Constant-current discharge | 13000.000 | 1.099 | 1170.340 | 5.40 | 13002.00 |
Claims (9)
1. the anode composite material of a nickel series secondary battery, it is characterized in that this anode composite material is formed by spherical hickelous nydroxide, main conductive agent powdered graphite and little cobalt compound, its weight proportion is: hickelous nydroxide 40%～97%, powdered graphite 3%～50%, cobalt compound 0%～10%, and its preparation method is:
A) with wet method or dry method said components is fully mixed in advance;
B) with A) described in mixture mix pressurized treatments again by the powder grinder, pressure limit is controlled at 0.5～50Mpa;
C) with B) described in mixture through pulverizing or cutting is handled;
D) with C) described in mixture adjust by common water soluble adhesive, make positive plate by wet method slurry process using steel band or steel mesh as conducting base.
2. the anode composite material of a kind of nickel series secondary battery according to claim 1, the particle diameter that it is characterized in that powdered graphite is between 5～800um.
3. the anode composite material of a kind of nickel series secondary battery according to claim 1 is characterized in that the fineness of this mixture after cutting can cross 40～300 purpose dry screen or wet screenings.
4. the anode composite material of a kind of nickel series secondary battery according to claim 1 is characterized in that the spherical hickelous nydroxide particle surface all is covered with the powdered graphite as conductive agent.
5. the anode composite material of a kind of nickel series secondary battery according to claim 1 is characterized in that powdered graphite can substitute with other conductive powders such as conductive carbon blacks.
6. the anode composite material of a kind of nickel series secondary battery according to claim 1 is characterized in that cobalt compounds can add or not add less.
7. the anode composite material of a kind of nickel series secondary battery according to claim 1 is characterized in that the powder grinder can wherein one or more substitute with roller or high-speed mixer or high-speed cutting machine or ball mill or high velocity air grinding machine.
8. nickel series secondary alkalescence battery, it is characterized in that anode is the positive plate that the anode composite material of above-mentioned invention is made by wet method slurry technology, conducting base then adopts Punching steel strip or steel mesh or burr steel belt wherein a kind of and do not use foaming nickel.
9. a kind of nickel series secondary alkalescence battery according to claim 8 is characterized in that by cooperating different negative materials can form the secondary cell of nickeliferous series such as Ni-MH battery, nickel-cadmium cell, nickel-zinc cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100280943A CN101154723A (en) | 2007-05-15 | 2007-05-15 | Method of producing anode composite material of nickel series secondary battery and products produced thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100280943A CN101154723A (en) | 2007-05-15 | 2007-05-15 | Method of producing anode composite material of nickel series secondary battery and products produced thereby |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544502A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Anode and cathode conductive additive for secondary lithium battery, method for preparing conductive additive, and method for preparing secondary lithium battery |
| CN106531974A (en) * | 2016-12-27 | 2017-03-22 | 益阳科力远电池有限责任公司 | Manufacturing method of negative plate of nickel-metal hydride battery |
-
2007
- 2007-05-15 CN CNA2007100280943A patent/CN101154723A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544502A (en) * | 2010-12-09 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Anode and cathode conductive additive for secondary lithium battery, method for preparing conductive additive, and method for preparing secondary lithium battery |
| CN102544502B (en) * | 2010-12-09 | 2015-07-01 | 中国科学院宁波材料技术与工程研究所 | Anode and cathode conductive additive for secondary lithium battery, method for preparing conductive additive, and method for preparing secondary lithium battery |
| CN106531974A (en) * | 2016-12-27 | 2017-03-22 | 益阳科力远电池有限责任公司 | Manufacturing method of negative plate of nickel-metal hydride battery |
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