CN1079171C - Nickel-hydrogen battery positive pole material and its preparing method and use - Google Patents
Nickel-hydrogen battery positive pole material and its preparing method and use Download PDFInfo
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- CN1079171C CN1079171C CN97116469A CN97116469A CN1079171C CN 1079171 C CN1079171 C CN 1079171C CN 97116469 A CN97116469 A CN 97116469A CN 97116469 A CN97116469 A CN 97116469A CN 1079171 C CN1079171 C CN 1079171C
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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 positive electrode material of a nickel-hydrogen battery, which comprises positive electrode powder and an adhesive, wherein the positive electrode powder mainly comprises nickelous hydroxide; 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 positive electrode material of the present invention reduces the self-discharge of the nickel-hydrogen battery, raises the open-circuit voltage of the nickel-hydrogen battery 0.1% to 2%, raises the capacity of the nickel-hydrogen battery 1% to 3% and prolongs the cycling life of the nickel-hydrogen battery.
Description
The present invention relates to a kind of nickel-hydrogen battery positive pole material and its production and use, particularly relate to the method for using a kind of new type bonding agent making anode of nickel-metal hydride battery and use positive pole of the present invention to be assembled into Ni-MH battery.
The positive pole of Ni-MH battery is evenly to be mixed after moulding process is made with adhesive by the positive powder based on Powdered hickelous nydroxide, the Ni-MH battery that uses positive pole of the present invention to make has advantages such as capacity is big, average output voltage is high, non-environmental-pollution, and the power supply that can be used as mobile phone, notebook computer, field camera uses.
The performance of anode of nickel-metal hydride battery not only is subjected to positive electrode active materials hickelous nydroxide Effect on Performance, but also is subjected to other associated materials as the performance of anodal adhesive and the influence of constituent.Comprise a kind of novel anode of nickel-metal hydride battery adhesive in this patent invention, and make the positive pole of Ni-MH battery, and be assembled into Ni-MH battery with it and positive powder.Wherein the main component of positive powder is a hickelous nydroxide.At present, open the positive pole that flat 8-287906 is the Ni-MH battery of representative with CN1076313A, spy, mostly being that the master is composite with the polytetrafluoroethylene is made with positive powder as adhesive with sodium carboxymethylcellulose, polyvinyl alcohol or Sodium Polyacrylate.They exist following shortcoming in use: (1) adhesive consumption accounts for 4%～6% of positive powder greatly; (2) strong electrochemistry inertia has seriously influenced the useful life of battery; (3) with the bad adhesion of substrate; (4) shortcoming such as material price height.When being wound into cylinder battery, take place positive powder from conductive support peel off, come off and the coiling battery the cycle charge discharge electric process along with expansion, the contraction of positive powder, also can produce the obscission of powder, cause the reduction of battery capacity and the deterioration of cycle life.And the positive powder that splits away off is moved to self discharge even the short circuit that battery also can take place negative pole.Because the strong-hydrophobicity of this type of adhesive is unfavorable for the reaction between electrolyte and positive powder two-phase interface, influenced the performance of Ni-MH battery.
The objective of the invention is to overcome the shortcoming in the prior art, the anode of nickel-metal hydride battery that the adhesive that uses this patent to invent is manufactured, the cross-linking reaction of generation self-cross linking monomer in the drying course of electrode makes binder molecule form the network of an integral body.This kind adhesive has good toughness and caking property, has good stable in alkaline electrolyte.Use the positive pole of the Ni-MH battery of adhesive manufacturing of the present invention can reduce Ni-MH battery internal resistance, reduce adhesive consumption, reduce self discharge; Improve the electrochemistry capacitance of Ni-MH battery and the cycle life that discharges and recharges.
Nickel-hydrogen battery positive pole material of the present invention comprises adhesive and positive powder, wherein adhesive consumption is 1%～4%, the characteristics of adhesive are to take into account the liquid-solid two-phase interface reaction that hydrophily and hydrophobicity are suitable for anode of nickel-metal hydride battery, 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 mix to use.Percentage of the present invention all is weight percentage except as otherwise noted.The making of anode of nickel-metal hydride battery:
Anode of nickel-metal hydride battery of the present invention is to use a kind of novel adhesive and positive powder blend to make the powder slurry, then mechanically as: the vibration, slide to wait it is charged in the foamed nickel substrate, drying and punch forming are made the process of positive plate for nickel-hydrogen cell, its preparation comprises the steps: the making of making (1) adhesive agent emulsion of 1. adhesives: 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: getting acrylic acid 20%～30%, ethyl acrylate 40%～60% and self-cross linking monomer 5%～10%, is initator with the ammonium persulfate, and copolymerization is 3～5 hours under 75～85 ℃ condition, obtains the thickener emulsion.Wherein self-cross linking monomer comprises: n-methylolacrylamide, hydroxy-ethyl acrylate, hydroxypropyl acrylate, phthalic acid divinyl ester, diallyl phthalate.
With adhesive agent emulsion and the thickener emulsion mixed according to 10: 2, and adjust pH=11～14 of system with ammoniacal liquor, it is the anode of nickel-metal hydride battery adhesive of 800～1000 centipoises that the back that stirs obtains viscosity.2. positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, and 100～150 ℃ of bakings 10～30 minutes down, punch forming obtains anode of nickel-metal hydride battery of the present invention at last.
Use anode of nickel-metal hydride battery of the present invention and nickel-hydrogen battery negative pole 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 reduced the self discharge of Ni-MH battery; (2) improved the open circuit voltage 0.1%～2% of Ni-MH battery; (3) improved the capacity 1%～3% 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] is the preparation of the making of adhesive (1) adhesive agent emulsion 1.; 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: getting 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system has obtained the anode of nickel-metal hydride battery adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system has obtained the anode of nickel-metal hydride battery adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and 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 are 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system has obtained the anode of nickel-metal hydride battery adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system 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, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list 1) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system 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, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and 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 of weight ratio with the thickener emulsion, then, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, the automatic thickening of system has obtained the anode of nickel-metal hydride battery adhesive that viscosity is about 900 centipoises after stirring.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and Ni-MH battery.[comparative example 1] 1. making of adhesive: with adhesive agent emulsion, thickener emulsion and the ptfe emulsion of this patent invention 10: 2: 2 mixed by weight, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains positive plate for nickel-hydrogen cell of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and Ni-MH battery.[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, at this moment, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and Ni-MH battery.[comparative example 3] 1. making of adhesive: with adhesive agent emulsion, thickener emulsion and the ptfe emulsion of this patent invention 10: 2: 6 mixed by weight, with ammoniacal liquor the pH value of system is adjusted to pH＞12, at this moment, obtained the nickel-hydrogen battery negative pole adhesive that viscosity is about 1000 centipoises.2. the adhesive that uses said method to manufacture, positive powder and adhesive evenly are mixed and made into the powder slurry, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.3. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and Ni-MH battery.[comparative example 4] 1. preparation of adhesive: make the powder slurry according to positive powder and 1: 0.8 mixed of ptfe emulsion, then, adopt mechanical system as: vibration, slip etc. charge into it in foamed nickel substrate, dried by the fire 10～30 minutes down at 100～150 ℃, last punch forming obtains anode of nickel-metal hydride battery of the present invention.2. the assembling of Ni-MH battery:, be assembled into AA type Ni-MH battery and measure its battery performance (seeing attached list) with the negative pole of above-mentioned anode of nickel-metal hydride battery of manufacturing and Ni-MH battery.
Subordinate list
*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.
| Cycle life (inferior) | Discharge capacity (mAh/g) | The toughness of positive plate *(inferior) | The caking property of positive plate and substrate **(my god) | The cementitiousness of adhesive ***(my god) | |
| Embodiment 1 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Embodiment 2 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Embodiment 3 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Embodiment 4 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Embodiment 5 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Embodiment 6 | ＞300 | 1150 | ＞10 | ＞10 | ＞10 |
| Comparative example 1 | ＞200 | 1150 | ＞10 | ＞10 | ＞10 |
| Comparative example 2 | ＞200 | 1150 | ＞10 | ＞10 | ＞10 |
| Comparative example 3 | ＜200 | 1150 | ＜10 | ＜10 | ＜10 |
| Comparative example 4 | ＞150 | 1150 | ＜3 | ＜2 | ＜4 |
Claims (9)
1. nickel-hydrogen battery positive pole material, comprise positive powder and adhesive based on hickelous nydroxide, the weight ratio that it is characterized in that described adhesive and positive 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 positive 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 positive 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 positive 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 positive 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, obtain 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, obtain the thickener emulsion, with adhesive agent emulsion and thickener emulsion mixed, and add ammoniacal liquor and stir according to 10: 2
Evenly the back obtains anode of nickel-metal hydride battery adhesive composition, (2). the positive powder of Ni-MH battery is evenly mixed with adhesive, then, repressed moulding,
100～150 ℃ were dried by the fire 10～30 minutes down, obtain the positive pole of Ni-MH battery of the present invention.
6. the preparation method of positive electrode according to claim 5 is characterized in that described system pH=11-14.
7. the preparation method of positive electrode 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 positive pole material according to claim 1 is characterized in that described positive electrode is used to make Ni-MH battery.
9. the purposes of a kind of nickel-hydrogen battery positive 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 |
|---|---|---|---|
| CN97116469A CN1079171C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery positive pole material and its preparing method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97116469A CN1079171C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery positive pole material and its preparing method and use |
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| Publication Number | Publication Date |
|---|---|
| CN1212477A CN1212477A (en) | 1999-03-31 |
| CN1079171C true CN1079171C (en) | 2002-02-13 |
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| CN97116469A Expired - Fee Related CN1079171C (en) | 1997-09-19 | 1997-09-19 | Nickel-hydrogen battery positive pole material and its preparing method and use |
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Families Citing this family (2)
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| CN100334754C (en) * | 2005-01-27 | 2007-08-29 | 广州市鹏辉电池有限公司 | Steel-tape nickel cathode and assemblied battery |
| CN107978757A (en) * | 2017-11-23 | 2018-05-01 | 邓丽珍 | A kind of nickel-hydrogen battery positive pole material and its manufacture method |
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