CN1079170C - Nickel-hydrogen battery negative pole material and preparing method and use - Google Patents
Nickel-hydrogen battery negative pole material and preparing method and use Download PDFInfo
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- CN1079170C CN1079170C CN97116465A CN97116465A CN1079170C CN 1079170 C CN1079170 C CN 1079170C CN 97116465 A CN97116465 A CN 97116465A CN 97116465 A CN97116465 A CN 97116465A CN 1079170 C CN1079170 C CN 1079170C
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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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Abstract
The present invention relates to a negative electrode material of a nickel-hydrogen battery, which comprises a hydrogen storing alloy and an adhesive, wherein the adhesive comprises 1% to 5% of acrylic acid or alpha-methacrylic acid, 80% to 90% of acrylate ester or alpha-methacrylate ester, 5% to 15% of a self-crosslinking monomer and 1% to 10% of divinylbenzene. The nickel-hydrogen battery made by the negative electrode material of the present invention raises the open-circuit voltage of the nickel-hydrogen battery 0.1% to 6%, raises a discharge platform of the nickel-hydrogen battery 0.1% to 3%, raises the capacity of the nickel-hydrogen battery 1% to 5% and prolongs the cycling life of the nickel-hydrogen battery.
Description
The present invention relates to a kind of nickel-hydrogen battery negative pole material and its production and use, particularly relate to the method for using a kind of new type bonding agent making nickel-hydrogen battery negative pole and use negative pole of the present invention to be assembled into Ni-MH battery.
The negative pole of Ni-MH battery is evenly to be mixed after slurry technology is made by pulverous hydrogen bearing alloy and adhesive, the Ni-MH battery that uses negative pole of the present invention to make has advantages such as capacity is big, average output voltage is high, non-environmental-pollution, can be used as the power supply of mobile phone, notebook computer, field camera.
The performance of nickel-hydrogen battery negative pole not only is subjected to the influence of alloy material storing hydrogen, but also is subjected to other associated materials as the performance of negative pole adhesive and the influence of constituent.Comprise the adhesive that a kind of novel nickel-hydrogen battery negative pole is used in this patent invention, make the negative pole of Ni-MH battery with it and hydrogen bearing alloy, and be assembled into Ni-MH battery.At present, the negative pole of Ni-MH battery mostly be the main composite negative plate of making Ni-MH battery with hydrogen bearing alloy as adhesive with sodium carboxymethylcellulose, polyvinyl alcohol or Sodium Polyacrylate with the polytetrafluoroethylene as: clear 60-74355, clear 58-163157, spy open flat 7-114923.But they exist following shortcoming in use: (1) consumption big (accounting for the 8%-10% of negative material); (2) internal resistance of cell is low excessively than the heavy load platform voltage, the requirement that very difficult adaptation is used in combination; (3) strong electrochemistry inertia has seriously influenced the useful life of battery; (4) material price height; (5) with the shortcomings such as bad adhesion of substrate, to such an extent as to when being wound into cylinder battery, hydrogen storing alloy powder can taking place peel off, come off from conductive support; And the coiling battery in the cycle charge discharge electric process along with expansion, the contraction of hydrogen storag powder, also can produce the obscission of powder, thereby cause the reduction of battery capacity and the deterioration of cycle life.And the hydrogen storing alloy powder that splits away off is moved to anodal self discharge even the short circuit that battery also can take place.Because the strong-hydrophobicity of this type of adhesive is unfavorable for the interfacial reaction between electrolyte and the hydrogen bearing alloy, influenced the performance of Ni-MH battery.Te Kaiping 8-264175 has invented vinylacetate-acrylic copolymer and acrylic acid-copolymer in cinnamic acrylic ester and carboxymethyl cellulose blend, adhesive as the nickel-hydrogen battery negative pole hydrogen storing alloy powder, make the technology of nickel-hydrogen battery negative pole, but it still exists the poor toughness of adhesive, the shortcoming of easy cracking of electrode slice and dry linting in winding process.
The objective of the invention is to overcome the shortcoming in the prior art, the nickel-hydrogen battery negative pole that the adhesive that uses this patent to invent is manufactured, the cross-linking reaction that cross-linking monomer takes place in the drying course of electrode makes binder molecule form the network of an integral body, make this kind adhesive have good toughness and caking property, in alkaline electrolyte, have good stable.Use the electrode slice of adhesive manufacturing of the present invention can improve the open circuit voltage of Ni-MH battery, the internal resistance of reduction Ni-MH battery, the discharge voltage and the discharge platform of raising Ni-MH battery; Improve the electrochemistry capacitance of Ni-MH battery and the cycle life that discharges and recharges.
Nickel-hydrogen battery negative pole material of the present invention comprises adhesive and hydrogen bearing alloy, and wherein adhesive consumption is 1%～6%.The characteristics of adhesive are to take into account the gas-liquid-solid three phase boundary reaction that hydrophily and hydrophobicity are suitable for nickel-hydrogen battery negative pole, its form and content as follows:
Acrylic acid (or α-Jia Jibingxisuan): 1%～5%
Acrylate (or α-Jia Jibingxisuan ester): 80%～90%
Self-cross linking monomer: 5%～15%
Divinylbenzene: 1%～10% wherein acrylate comprise: methyl acrylate, ethyl acrylate, butyl acrylate, Isooctyl acrylate monomer; Self-cross linking monomer comprises: n-methylolacrylamide, hydroxy-ethyl acrylate, hydroxypropyl acrylate, phthalic acid divinyl ester, diallyl phthalate, and two or more self-cross linking monomer mixes use.Percentage of the present invention all is weight percentage except as otherwise noted.The making of nickel-hydrogen battery negative pole:
Nickel-hydrogen battery negative pole of the present invention is to use a kind of novel adhesive and hydrogen storing alloy powder blend to make the powder slurry, the powder slurry is coated in uniformly the both sides of substrate nickel screen through slurry technology, through compacting, the process of nickel-hydrogen battery negative pole is made in oven dry, its preparation process may further comprise the steps: 1. the making of the making of adhesive (1) adhesive agent emulsion: get acrylate (or α-Jia Jibingxisuan ester) 80%～90%, self-cross linking monomer 5%15%, divinylbenzene 1%～10%, with the ammonium persulfate is initator, copolymerization is 3～5 hours under 75～85 ℃ condition, obtains the emulsion of adhesive.(2) making of thickener emulsion: according to identical synthetic method; get acrylic acid 20%～30%, ethyl acrylate 40%～60%, self-cross linking monomer 10%; be initator with the ammonium persulfate, copolymerization is 3～5 hours under 75～85 ℃ condition, obtains the thickener emulsion.
With adhesive agent emulsion and thickener emulsion according to 10: 2 mixed of weight ratio, and add pH＞12 that a spot of ammoniacal liquor makes system, the back acquisition viscosity that stirs is that the nickel-hydrogen battery negative pole adhesive 2. of 800～1000 centipoises evenly is mixed and made into the powder slurry with hydrogen storing alloy powder and adhesive, then, adopt slurry technology the powder slurry to be coated in uniformly the two sides of substrate nickel screen, dried by the fire 10～30 minutes down at 100～150 ℃ after the compacting, obtain nickel-hydrogen battery negative pole of the present invention, wherein adhesive consumption is 1～6%.
Use nickel-hydrogen battery negative pole of the present invention and anode of nickel-metal hydride battery to be assembled into Ni-MH battery.
The Ni-MH battery that the present invention forms can be cylindrical shape, also can be square and dihedral that the variation of battery profile all within the scope of the invention.
The Ni-MH battery that adopts this patent invention to make has overcome the shortcoming of Ni-MH battery in the past, and obtained following invention effect: (1) has improved the open circuit voltage 0.1%～6% of Ni-MH battery; (2) improved the discharge platform 0.1%～3% of Ni-MH battery; (3) improved the capacity 1%～5% of Ni-MH battery; (4) improved the cycle life of Ni-MH battery.
Tell about detailed process of the present invention by the following examples, it is for for the purpose of the convenience of understanding that embodiment is provided, and limits this patent invention anything but.[embodiment 1] 1. making of adhesive: the preparation of (1) adhesive agent emulsion: get divinylbenzene 8g, methyl acrylate 5g, ethyl acrylate 10g, butyl acrylate 15g, Isooctyl acrylate monomer 12g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 4 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method; get acrylic acid 15g, Isooctyl acrylate monomer 5g, ethyl acrylate 15g, hydroxypropyl acrylate 5g, butyl acrylate 10g, diallyl phthalate 1g is that initator obtained the thickener emulsion in 3 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.03 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative pole of making Ni-MH battery in 15 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[embodiment 2] are the preparation of the making of adhesive (1) adhesive agent emulsion 1.: get hydroxypropyl acrylate 8g, methyl acrylate 10g, butyl acrylate 15g, Isooctyl acrylate monomer 17g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 4 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method; get acrylic acid 15g, ethyl acrylate 20g, hydroxypropyl acrylate 5g; butyl acrylate 10g, diallyl phthalate 1g is that initator obtained the thickener emulsion in 3 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.03 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 15 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[embodiment 3] are the preparation of the making of adhesive (1) adhesive agent emulsion 1.: get hydroxypropyl acrylate 4g, divinylbenzene 4g, methyl acrylate 5g, ethyl acrylate 7g, butyl acrylate 15g, Isooctyl acrylate monomer 15g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 4 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method; get acrylic acid 15g, ethyl acrylate 20g, n-methylolacrylamide 5g; butyl acrylate 10g, diallyl phthalate 1g is that initator obtained the thickener emulsion in 4 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.03 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 15 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[embodiment 4] are the preparation of the making of adhesive (1) adhesive agent emulsion 1.: get hydroxypropyl acrylate 4g, divinylbenzene 3g, ethyl acrylate 5g, butyl acrylate 15g, Isooctyl acrylate monomer 23g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 5 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method; get acrylic acid 15g, ethyl acrylate 20g, hydroxypropyl acrylate 5g; butyl acrylate 10g, diallyl phthalate is that initator obtained the thickener emulsion in 5 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.04 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 20 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[embodiment 5] are the preparation of the making of adhesive (1) adhesive agent emulsion 1.: get hydroxypropyl acrylate 5g, methyl acrylate 5g, ethyl acrylate 10g, Isooctyl acrylate monomer 30g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 5 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method, get α-Jia Jibingxisuan 15g, ethyl acrylate 20g, hydroxypropyl acrylate 5g, butyl acrylate 10g, phthalic acid divinyl ester 1g are that initator obtained the thickener emulsion in 5 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.05 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 15 minutes down at 130 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[embodiment 6] are the preparation of the making of adhesive (1) adhesive agent emulsion 1.: get hydroxypropyl acrylate 3g, divinylbenzene 5g, methyl acrylate 7g, ethyl acrylate 5g, butyl acrylate 10g, Isooctyl acrylate monomer 20g and MS-1 emulsifying agent 3g, with the ammonium persulfate is initator, adopt method of emulsion polymerization, obtained the emulsion that adhesive is used in 5 hours 81～84 ℃ of reactions.(2) preparation of thickener emulsion: according to same synthetic method, get α-Jia Jibingxisuan 15g, ethyl acrylate 20g, n-methylolacrylamide 5g, butyl acrylate 10g, diallyl phthalate 1g are that initator obtained the thickener emulsion in 5 hours 81～84 ℃ of reactions with the ammonium persulfate.
Adhesive agent emulsion is evenly mixed according to 10: 2 ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, this moment system automatic thickening has obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, evenly be mixed and made into the powder slurry according to hydrogen storing alloy powder and 1: 0.06 ratio of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 15 minutes down at 130 ℃ after the compacting.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery.[comparative example 1] 1. making of adhesive: the mixed of adhesive agent emulsion, thickener emulsion and the ptfe emulsion of this patent invention being pressed 10: 2: 2, with ammoniacal liquor the pH value of system is adjusted to pH＞12, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises this moment.2. make the powder slurry according to hydrogen storing alloy powder and 1: 0.04 mixed of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 10 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery: with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) [comparative example 2] 1. making of adhesive: the mixed of adhesive agent emulsion, thickener emulsion and the ptfe emulsion of this patent invention being pressed 10: 2: 4, with ammoniacal liquor the pH value of system is adjusted to pH＞12, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises this moment.2. make the powder slurry according to hydrogen storing alloy powder and 1: 0.05 mixed of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 10 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery: with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) [comparative example 3] 1. making of adhesive: the mixed of adhesive agent emulsion, thickener emulsion and the ptfe emulsion of this patent invention being pressed 10: 2: 6, with ammoniacal liquor the pH value of system is adjusted to pH＞12, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises this moment.2. make the powder slurry according to hydrogen storing alloy powder and 1: 0.06 mixed of adhesive, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 10 minutes down at 125 ℃ after the compacting.3. the assembling of Ni-MH battery: with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) [comparative example 4] and 1. make the powder slurry according to hydrogen storing alloy powder and 1: 0.1 mixed of ptfe emulsion, adopt slurry technology that powder is starched the both sides that are coated in the substrate nickel screen uniformly, dry by the fire the negative plate of making Ni-MH battery in 10 minutes down at 125 ℃ after the compacting.2. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (see attached list 1 and subordinate list 2) subordinate list 1 with the above-mentioned nickel-hydrogen battery negative pole sheet of manufacturing and the positive plate of Ni-MH battery
| Open circuit voltage (v) | Region of discharge (v) | Discharge capacity (mAh/g) | Cycle life (inferior) | |
| Embodiment 1 | 1.27 | 1.27～1.15 | 1150 | ＞300 |
| Embodiment 2 | 1.27 | 1.27～1.15 | 1150 | ＞300 |
| Embodiment 3 | 1.27 | 1.27～1.15 | 1150 | ＞300 |
| Embodiment 4 | 1.27 | 1.27～1.15 | 1137 | ＞300 |
| Embodiment 5 | 1.27 | 1.27～1.15 | 1121 | ＞300 |
| Embodiment 6 | 1.27 | 1.27～1.15 | 1112 | ＞300 |
| Comparative example 1 | 1.25 | 1.25～1.15 | 1130 | ＞200 |
| Comparative example 2 | 1.24 | 1.24～1.15 | 1121 | ＞200 |
| Comparative example 3 | 1.23 | 1.23～1.15 | 1109 | ＜200 |
| Comparative example 4 | 1.20 | 1.21～1.15 | 1075 | ＜150 |
Subordinate list 2:
*Number of times when the nickel-hydrogen battery negative pole sheet bends 90 °.
*When the nickel-hydrogen battery negative pole sheet soaks in the 30%KOH aqueous solution, from the time that substrate is thrown off.
* *When the nickel-hydrogen battery negative pole sheet soaks in the 30%KOH aqueous solution, the time that hydrogen storag powder begins to drift out.
| The toughness of negative plate * | The caking property of negative plate and substrate ** | The cementitiousness of adhesive *** | |
| Embodiment 1 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Embodiment 2 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Embodiment 3 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Embodiment 4 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Embodiment 5 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Embodiment 6 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Comparative example 1 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Comparative example 2 | ＞10 (inferior) | ＞10 (my god) | ＞10 (my god) |
| Comparative example 3 | ＜10 (inferior) | ＜10 (my god) | ＜10 (my god) |
| Comparative example 4 | ＜3 (inferior) | ＜2 (my god) | ＜4 (my god) |
Claims (9)
1. nickel-hydrogen battery negative pole material, comprise hydrogen storing alloy powder and adhesive, the weight ratio that it is characterized in that described adhesive and hydrogen storing alloy powder is 1%-6%, and the composition and the weight percentage of described adhesive are as follows: acrylic acid or α-Jia Jibingxisuan: 1%～5% acrylate or α-Jia Jibingxisuan ester: 80%～90% self-cross linking monomer: 5%～15% divinylbenzene: 1%～10%
2. a kind of nickel-hydrogen battery negative pole material according to claim 1 is characterized in that described acrylate is methyl acrylate, ethyl acrylate, butyl acrylate, Isooctyl acrylate monomer.
3. a kind of nickel-hydrogen battery negative pole material according to claim 1 is characterized in that described self-cross linking monomer is n-methylolacrylamide, hydroxy-ethyl acrylate, hydroxypropyl acrylate, phthalic acid divinyl ester, diallyl phthalate,
4. a kind of nickel-hydrogen battery negative pole material according to claim 3 is characterized in that the mixture of described self-cross linking monomer for two or more self-cross linking monomer.
5. the preparation method of a kind of nickel-hydrogen battery negative pole material according to claim 1, it is characterized in that following these steps to carry out: the making of (1) adhesive: the making of a. adhesive agent emulsion: acrylate or α-Jia Jibingxisuan ester 80%～90%, self-cross linking monomer 5%～15%, divinylbenzene 1%～10%, copolymerization is 3～5 hours under 75～85 ℃ condition, obtains the emulsion of adhesive.B. the making of thickener emulsion: get acrylic acid 30%～50%, hydroxy-ethyl acrylate 40～60%, self-cross linking monomer 5%～10%, copolymerization is 3～5 hours under 75～85 ℃ condition, obtains the thickener emulsion.With adhesive agent emulsion and thickener emulsion mixed according to 10: 2, and add the ammoniacal liquor back that stirs and obtain the nickel-hydrogen battery negative pole adhesive composition, (2). the hydrogen storing alloy powder that goes out of Ni-MH battery is evenly mixed with adhesive, then, repressed moulding, 100～150 ℃ of down bakings 10～30 minutes, obtain the negative pole of Ni-MH battery of the present invention.
6. the preparation method of negative material according to claim 5 is characterized in that described system pH=11-14.
7. the preparation method of negative material according to claim 5, the viscosity that it is characterized in that described system is the 800-1000 centipoise.
8. the purposes of a kind of nickel-hydrogen battery negative pole material according to claim 1 is characterized in that described negative material is used to make Ni-MH battery.
9. the purposes of a kind of nickel-hydrogen battery negative pole material according to claim 1 is characterized in that described Ni-MH battery is circle, square, angle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97116465A CN1079170C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery negative pole material and preparing method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97116465A CN1079170C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery negative pole material and preparing method and use |
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| Publication Number | Publication Date |
|---|---|
| CN1212475A CN1212475A (en) | 1999-03-31 |
| CN1079170C true CN1079170C (en) | 2002-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN97116465A Expired - Fee Related CN1079170C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery negative pole material and preparing method and use |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101267035B (en) * | 2008-04-25 | 2011-03-16 | 南京工业大学 | A nickel hydrogen cathode material and its making method |
| CN102637850A (en) * | 2012-05-16 | 2012-08-15 | 天津力神电池股份有限公司 | Method and battery pole piece for reducing battery self-discharge and improving safety performance |
| CN107968197A (en) * | 2017-11-23 | 2018-04-27 | 邓丽珍 | A kind of nickel-hydrogen battery negative pole material and its manufacture method |
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