CN107658442A - Ni-mh rechargeable battery negative plate and preparation method thereof and the ni-mh rechargeable battery using the negative plate - Google Patents
Ni-mh rechargeable battery negative plate and preparation method thereof and the ni-mh rechargeable battery using the negative plate Download PDFInfo
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- CN107658442A CN107658442A CN201710782809.8A CN201710782809A CN107658442A CN 107658442 A CN107658442 A CN 107658442A CN 201710782809 A CN201710782809 A CN 201710782809A CN 107658442 A CN107658442 A CN 107658442A
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Abstract
Ni-mh rechargeable battery the invention discloses a kind of ni-mh rechargeable battery negative plate and preparation method thereof and using the negative plate, belongs to ni-mh rechargeable battery technical field.Technical scheme main points are：Ni-mh rechargeable battery negative plate, the active material of the ni-mh rechargeable battery negative plate is by the hydrogen-storage alloy of 70 94.5 parts by weight, the polynary layered hydroxide [Zn of zinc-base of 1 20 parts by weightxMyM’z(OH)2]·[(Aa‑)n·mH2O], the additive of 0 10 parts by weight, the binding agent composition of the conductive agent of 3 30 parts by weight and 0.5 5 parts by weight.Ni-mh rechargeable battery the invention further particularly discloses the preparation method of the ni-mh rechargeable battery negative plate and using the negative plate.Energy density, high rate performance and the cycle life of ni-mh rechargeable battery can be greatly improved using the new ni-mh rechargeable battery negative plate by the present invention.
Description
Technical field
The invention belongs to ni-mh rechargeable battery technical field, and in particular to a kind of ni-mh rechargeable battery negative plate and its preparation
Method and the ni-mh rechargeable battery using the negative plate.
Background technology
In the last few years, Cd-Ni secondary battery was extremely restricted due to the pollution problem of cadmium electrode, its development；Zinc-nickel is secondary
Due to there is the problems such as being also easy to produce zinc dendrite and deformation in the zinc load of battery, the cycle performance of battery is poor, and correlation technique still has
Treat further to develop.Traditional ferronickel secondary cell generally use has material using the compound of iron or iron as negative electrode active material
Expect abundance, it is cheap, super-charge super-discharge electricity is resistant to, the exclusive the advantages of such as is had extended cycle life, once by wide as electrical source of power
It is general to be applied to traction locomotive.However, iron electrode has the problem of easily passivation and easy liberation of hydrogen, Hawkins cell high rate performance is caused
Difference, efficiency for charge-discharge is low, self discharge is big, active material utilization is low.These problems seriously constrain Hawkins cell application and
Development.Ni-MH battery has the advantages that, polluting, environmentally friendly without cadmium higher than energy, is developed rapidly at present.
But the hydrogen-storage alloy negative pole of Ni-MH battery closes with the continuous progress of charge and discharge cycles, negative electrode active material storage hydrogen
The anti-powdering and resistance to corrosion at bronze end can constantly decline, and discharge capacity of the cell constantly declines, and ultimately cause battery life contracting
It is short.The main reason for research finds, the decline of hydrogen-storage alloy negative pole performance is Ni-H cell degradation, it has a strong impact on hydrogen nickel
Internal pressure, internal resistance, discharge capacity and the cycle life of battery.At present, hydrogen-occlussion alloy electrode is in volumetric properties, high rate performance and circulation
Aspect of performance is still had large improvement space, still needs further to be developed.
The content of the invention
Present invention solves the technical problem that it is secondary to there is provided the more excellent hydrogen nickel of a kind of volumetric properties and high rate performance
GND and preparation method thereof, the energy of ni-mh rechargeable battery can be greatly improved using the new ni-mh rechargeable battery negative plate
Metric density, high rate performance and cycle life.
The present invention adopts the following technical scheme that ni-mh rechargeable battery negative plate, its feature exists to solve above-mentioned technical problem
In：The active material of the ni-mh rechargeable battery negative plate is by the hydrogen-storage alloy of 70-94.5 parts by weight, the zinc-base of 1-20 parts by weight
Polynary layered hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the additive of 0-10 parts by weight, 3-30 parts by weight
Conductive agent and the binding agent of 0.5-5 parts by weight composition, wherein M is aluminium, indium, bismuth, lanthanum, cerium, titanium, tin, yttrium or zirconium, M ' be aluminium, indium,
Bismuth, lanthanum, cerium, titanium, tin, yttrium, copper, nickel or cobalt, Aa-For CO3 2-、BO2 -、PO4 3-、SO4 2-、OH-、 Cl-、F-、S2-、MoO4 2-、WO4 2-、
In citrate, borate, benzoate anion, DBSA root, dodecyl sulphate root or dodecyl sodium sulfonate root
One or more, 0.8 >=x >=0.5,0.4>y>0,0.4>Z >=0, x+y+z=1, m>0, n>0, the hydrogen-storage alloy is AB5Type
RE-Ni hydrogen storage, La-Mg-Ni systems have PuNi3The AB of type structure3Type hydrogen-storage alloy or La-Mg-Ni systems have
Ce2Ni7The A of type structure2B7Type hydrogen-storage alloy.
Further preferably, the additive be bismuth sulfide, cerium oxide, the sub- cobalt of vulcanization, cobalt protoxide, bismuth oxide, yittrium oxide,
One or more in stannous sulfide, erbium oxide, the sub- nickel of vulcanization, copper sulfide or cupric oxide.
Further preferably, the conductive agent is electrically conductive graphite, acetylene black, conductive black, CNT, graphene, carbon fibre
One or more in dimension, sub- titanium oxide, copper powder, nickel powder, cobalt powder or glass putty.
Further preferably, the binding agent is sodium carboxymethylcellulose, polyvinyl alcohol, polytetrafluoroethylene (PTFE), hydroxypropyl methyl
One or more in cellulose, Sodium Polyacrylate, polyethylene, Pluronic F-127 or butadiene-styrene rubber.
Further preferably, the active material in the ni-mh rechargeable battery negative plate is supported on carrier or is filled in carrier
Centre loads and is wrapped in carrier, and the carrier is perforation nickel plating or tin-coated steel band, 3 D stereo steel band, plating nickel and stainless steel
Net, tin plating stainless (steel) wire, Foamed Nickel, foam copper, nickel plating foaming iron or copper mesh.
The preparation method of ni-mh rechargeable battery negative plate of the present invention, it is characterised in that active material is supported on carrier
On the specific preparation process of negative plate be：
(1) preparation of active material slurry：The zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight is polynary
Layered hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conduction of the additive of 0-10 parts by weight and 3-20 parts by weight
Agent is well mixed, add binder making by 0.5-5 parts by weight into adhesive solution, stir obtained active matter
Chylema material；
(2) preparation of ni-mh rechargeable battery negative plate：Active material slurry made from step (1) is scraped by coating-spreading mould
It is applied on perforation nickel plating or tin-coated steel band or 3 D stereo steel band or Foamed Nickel or foam copper or nickel plating foaming iron or copper mesh matrix,
By drying, roll-in, obtained ni-mh rechargeable battery negative plate is cut.
The preparation method of ni-mh rechargeable battery negative plate of the present invention, it is characterised in that active material is filled in carrier
The specific preparation process of middle negative plate is：
(1) preparation of active material particle：The zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight is polynary
Layered hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conduction of the additive of 0-10 parts by weight and 3-20 parts by weight
Agent is well mixed, add binder making by 0.5-5 parts by weight into adhesive solution, stir, drying is laggard
Row granulation obtains active material particle；
(2) preparation of ni-mh rechargeable battery negative plate：Active material particle made from step (1) is existed by Bao Fenji bags
In the strip capsule made with nickel plated steel strip or copper strips, multiple strip capsules are then subjected to drafting and extrude band on its surface
Fixed, ni-mh rechargeable battery negative plate finally is made through bound edge muscle and collector plate spot welding conduction lug.
The preparation method of ni-mh rechargeable battery negative plate of the present invention, it is characterised in that active material is loaded and wrapped up
The specific preparation process of negative plate in carrier is：
(1) preparation of active material slurry：The zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight is polynary
Layered hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conduction of the additive of 0-10 parts by weight and 3-20 parts by weight
Agent is well mixed, add binder making by 0.5-5 parts by weight into adhesive solution, stir obtained active matter
Chylema material；
(2) preparation of ni-mh rechargeable battery negative plate：Active material slurry made from step (1) is scraped by coating-spreading mould
It is applied on perforation nickel plating or tin-coated steel band or 3 D stereo steel band or Foamed Nickel or foam copper or nickel plating foaming iron or copper mesh matrix,
By drying, roll-in, cut and be prepared into blank pole plate, then by nickel plating stainless (steel) wire or tin plating stainless (steel) wire or copper mesh or nickel screen
Blank pole plate both sides are coated on, it is stainless with making blank pole plate be wrapped in nickel plating after welding eventually through roll-in or welding or roll-in
Ni-mh rechargeable battery negative plate is made within steel mesh or tin plating stainless (steel) wire or copper mesh or nickel screen.
Ni-mh rechargeable battery of the present invention, including battery container and the pole plate group in battery container and electrolysis
Liquid, wherein pole plate group include positive plate, negative plate and barrier film or dividing plate, it is characterised in that：The negative plate uses above-mentioned hydrogen
Nickel secondary batteries negative plate.
The present invention has the advantages that compared with prior art：It is known in the art that in ni-mh rechargeable battery
Anti-powdering and resistance to corrosion difference in negative plate be present, cause that negative electrode active material utilization rate is low, and cycle life is poor, put certainly
The problems such as TV university.The presence of these problems greatly limit the application of ni-mh rechargeable battery, and existing improved method is present respectively
Kind deficiency, it is impossible to solve the above problems well.The present invention is had found by studying, and the polynary stratiform hydroxide materials of zinc-base are used
Make ni-mh rechargeable battery cathode additive agent, by controlling the optimization of related material structure and dosage and formula can be effective
Improve the performance of metal-hydride negative, especially improve its capacity and cycle performance.
Embodiment
The above of the present invention is described in further details by the following examples, but this should not be interpreted as to this
The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair
Bright scope.
Embodiment 1
[ZnxTiy(OH)2]·[(Aa-)n·mH2O] (Zn/Ti=4/1, A=S2-) additive preparation：
In fume hood, titanium tetrachloride solution is dissolved in a certain amount of deionized water, zinc chloride is added, by titanium tetrachloride
Molar ratio control with zinc salt is Zn/Ti=4/1, adds a certain amount of urea, being configured to molar concentration after stirring is
2mol/L zinc titanium composite compaction technique；Zinc titanium composite compaction technique is moved into hydrothermal reaction kettle in 180 DEG C of hydro-thermal process 25 hours,
Then filtered, obtain intermediate product white powder；It is molten that white powder is transferred to the vulcanized sodium that molar concentration is 1mol/L
In liquid, under inert nitrogen gas in 80 DEG C handle 5h, then it is filtered, wash, be dried to obtain target product.
The application of additive：
By MmNi5Series hydrogen storage alloy the 85g, [Zn of synthesisxTiy(OH)2]·[(Aa-)n·mH2O] 8g, nickel powder 5g, quality be dense
Spend to be well mixed for 2.5% CMC solution 1g and mass concentration the PTFE aqueous solution 0.3g for being 60% and negative electrode active material is made
Slurry, it is applied to by coating-spreading mould on steel band both sides, by drying, roll-in, cuts negative plate is made.
Embodiment 2
[ZnxBiy(OH)2]·[(Aa-)n·mH2O] (Zn/Bi=3/1, A=CO3 2-) additive preparation：
Bismuth sulfate is dissolved in salpeter solution, adds the molar ratio control of zinc sulfate, wherein bismuth sulfate and zinc sulfate
For (Zn/Bi=3/1), the zinc bismuth composite compaction technique for being made into that molar concentration is 2mol/L is added in deionized water；By hydroxide
Sodium is dissolved in the sodium hydroxide solution for being configured to that molar concentration is 2mol/L in deionized water；By hydrogen-oxygen under 30 DEG C of reaction condition
Change sodium solution to be added drop-wise in zinc bismuth composite compaction technique, be stirred continuously until the pH of mixed liquor is 8 after the completion of reaction；Mixed liquor is turned
Enter into hydrothermal reaction kettle in 130 DEG C of hydro-thermal process 15h, it is filtered, wash, be dried to obtain white powder after being cooled to room temperature；
It is in 0.2mol/L sodium carbonate liquor, in atmosphere in 60 DEG C that gained white powder is transferred to the molar concentration prepared
6h is handled, filtered, washing is dried to obtain target product.
The application of additive：
By MmNi5Series hydrogen storage alloy the 78g, [Zn of synthesisxBiy(OH)2]·[(Aa-)n·mH2O] 10g, copper sulfide 5g, carbon
The poly-vinyl alcohol solution 0.3g and quality that HPMC solution 1.0g that nanotube 5g, mass concentration are 2.5%, mass concentration are 4%
The PTFE aqueous solution 0.2g that concentration is 60%, which is well mixed, is made negative electrode active material slurry, and foaming is applied to by coating-spreading mould
On nickel both sides, by drying, roll-in, cut negative plate is made.
Embodiment 3
[ZnxTiyCuz(OH)2]·[(Aa-)n·mH2O] (Zn/Ti/Cu=4/1/1, A=WO4 2-, OH-) additive system
It is standby：
In fume hood, titanium tetrachloride solution is dissolved in a certain amount of deionized water, adds zinc chloride and copper chloride, will
Zn/Ti/Cu molar ratio control is 4/1/1, adds a certain amount of urea, being configured to molar concentration after stirring is
3mol/L composite compaction technique；Composite compaction technique is moved into hydrothermal reaction kettle in 170 DEG C of hydro-thermal process 25 hours, then carried out
Filtering, obtain intermediate product white powder；White powder is transferred to the sodium tungstate that molar concentration that pH value is 14 is 2mol/L
Alkaline solution, under inert nitrogen gas in 100 DEG C handle 10h, then it is filtered, wash, be dried to obtain target product.
The application of additive：
By MmNi5Series hydrogen storage alloy 76g, the Zn of synthesisxTiyCuz(OH)2]·[(Aa-)n·mH2O] 12g, bismuth sulfide 5g,
The PTFE aqueous solution 0.2g mixing that the HPMC solution 1.4g and mass concentration that crystalline flake graphite 5g, mass concentration are 2.5% are 60%
Negative electrode active material slurry uniformly is made, is applied to by coating-spreading mould on Foamed Nickel both sides, by drying, roll-in, cuts system
Into negative plate.
Embodiment 4
[ZnxCeyAlz(OH)2]·[(Aa-)n·mH2O] (Zn/Ce/Al=4/1/1, A=OH-) additive preparation：
By zinc sulfate, the molar ratio control of cerous sulfate and aluminum sulfate is (Zn/Ce/Al=4/1/1), dissolves in deionization
The composite compaction technique that molar concentration is 2mol/L is made into water；Sodium hydroxide is dissolved in deionized water and is configured to molar concentration and is
3mol/L sodium hydroxide solution；Sodium hydroxide solution is added drop-wise in composite compaction technique under 30 DEG C of reaction condition, constantly
Stirring is until the pH of mixed liquor is 10 after the completion of reaction；Mixed liquor is transferred in hydrothermal reaction kettle in 140 DEG C of hydro-thermal process
15h, it is filtered, wash, be dried to obtain white powder after being cooled to room temperature；Gained white powder is transferred to rubbing of preparing
Your concentration is in 0.2mol/L sodium hydroxide solution, handles 6h in 60 DEG C in atmosphere, and filtered, washing is dried to obtain target
Product.
The application of additive：
By MmNi5Series hydrogen storage alloy the 85g, [Zn of synthesisxCeyAlz(OH)2]·[(Aa-)n·mH2O] 5g, bismuth oxide 5g,
The PTFE aqueous solution 0.2g mixing that the poly-vinyl alcohol solution 1.5g and mass concentration that acetylene black 5g, mass concentration are 4% are 60%
Negative electrode active material slurry uniformly is made, is applied to by coating-spreading mould on Foamed Nickel both sides, by drying, roll-in, cuts system
Into negative plate.
Embodiment 5
[ZnxAlySnz(OH)2]·[(Aa-)n·mH2O] ((Zn/Al/Sn=4/1/0.5, A=OH-, citrate,
PO4 3-) additive preparation：
By zinc chloride, the molar ratio control of aluminum sulfate and stannous chloride is (Zn/Al/Sn=4/1/0.5), is dissolved in
The composite compaction technique that molar concentration is 3mol/L is made into ionized water；Sodium hydroxide is dissolved in deionized water be configured to it is mole dense
Spend the sodium hydroxide solution for 3mol/L；Sodium hydroxide solution is added drop-wise in composite compaction technique under 20 DEG C of reaction condition,
It is stirred continuously until the pH of mixed liquor is 12 after the completion of reaction；Mixed liquor is transferred in hydrothermal reaction kettle at 160 DEG C of hydro-thermals
15h is managed, it is filtered, wash, be dried to obtain white powder after being cooled to room temperature；It is 14 that white powder is transferred into pH value
Molar concentration is that (mol ratio of trisodium citrate and sodium phosphate is in 4mol/L trisodium citrate and the alkaline solution of sodium phosphate
1:0.5), under inert nitrogen gas in 60 DEG C handle 24h, then it is filtered, wash, be dried to obtain target product.
The application of additive：
By MmNi5Series hydrogen storage alloy the 77g, [Zn of synthesisxAlySnz(OH)2]·[(Aa-)n·mH2O] 10g, erbium oxide 4g,
The PTFE aqueous solution that the HPMC solution 1.4g and mass concentration that superconduction carbon black 5g, copper powder 5g, mass concentration are 2.5% are 60%
0.2g is well mixed to be made negative electrode active material slurry, is applied to by coating-spreading mould on foam copper both sides, by drying, roller
Press, cut negative plate is made.
Embodiment 6
[ZnxBiyInz(OH)2]·[(Aa-)n·mH2O] (Zn/Bi/In=3/1/0.5, A=OH-) additive preparation：
Bismuth sulfate is dissolved in salpeter solution, adds zinc chloride and inidum chloride, wherein Zn/Bi/In molar ratio control
3/1/0.5 is made as, adds in deionized water the composite compaction technique for being made into that molar concentration is 1mol/L；Sodium hydroxide is dissolved in
The sodium hydroxide solution that molar concentration is 0.5mol/L is configured in deionized water；By sodium hydroxide under 30 DEG C of reaction condition
Solution is added drop-wise in composite compaction technique, is stirred continuously until the pH of mixed liquor is 10 after the completion of reaction；Mixed liquor is transferred to water
It is filtered, wash, be dried to obtain white powder after being cooled to room temperature in 140 DEG C of hydro-thermal process 10h in thermal response kettle；By gained
It is in 0.2mol/L sodium hydroxide solution, in atmosphere in 60 DEG C of processing that white powder, which is transferred to the molar concentration prepared,
8h, filtered, washing are dried to obtain target product.
The application of additive：
By MmNi5Series hydrogen storage alloy 75g, [ZnxBiyInz(OH)2]·[(Aa-)n·mH2O] 5g, the sub- nickel 8g of vulcanization, dioxy
Change cerium 5g, electrically conductive graphite 5g and the poly-vinyl alcohol solution 1.5g that mass concentration is 4% are well mixed and negative electrode active material chylema are made
Material, is applied on Foamed Nickel both sides by coating-spreading mould, by drying, roll-in, cuts negative plate is made.
Comparative example 1
By MmNi5Series hydrogen storage alloy 88g, superconduction carbon black 5g, nickel powder 5g and mass concentration are 4% poly-vinyl alcohol solution
1.5g is well mixed to be made negative electrode active material slurry, is applied to by coating-spreading mould on Foamed Nickel both sides, by drying, roller
Press, cut negative plate is made.
Battery assembles：By folder between sintering positive plate and above-described embodiment 1-6 and the negative plate of comparative example 1 across alkaline electro
Pond barrier film, it is fitted into special simulated battery shell, the LiOH electrolysis that the KOH and mass concentration that implantation quality concentration is 30% are 2%
Liquid, it is assembled into the ni-mh rechargeable battery of semitight.
Battery capacity performance test：The battery that the negative material prepared using specific embodiment 1-6 and comparative example 1 is made
After 0.2C is activated, 0.2C charging 6h, afterwards battery shelve 10min, voltage is then discharged to as 1.0 using 0.2C and 2C respectively
And 0.8V, obtain room temperature discharge capacity.
Cycle performance of battery is tested：Battery made from embodiment 1-6 and comparative example 1 is entered under 25 DEG C of environment temperatures respectively
Row 0.2C charging 6h, it is 1.0V that 1C, which is discharged to cell voltage, and 10min is put in each charge or discharge after terminating, 1C discharge and recharges follow
Ring 200 times.
The battery charging/discharging performance testing of table 1
The negative pole prepared using the present invention is can be seen that from above test result has higher gram volume, excellent times
Rate performance and cyclical stability, the requirement of commercial cells, particularly high power capacity high-power battery can be met.These performances change
Enter to be mainly due to：It is composite mixed to hydrogen-storage alloy in charge and discharge process beneficial to metal ion in zinc-base layered hydroxide
The modification of negative pole and regulating and controlling effect, improve its anti-oxidant and efflorescence ability, significantly improve metal-hydride negative volumetric properties and
Cycle performance.Therefore, the architectural feature of zinc-base layered hydroxide and the reasonably optimizing of electrode formulation are to improve hydrogen storage electrode
The key of energy.
Embodiment above describes the general principle of the present invention, main features and advantages.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (9)
1. ni-mh rechargeable battery negative plate, it is characterised in that：The active material of the ni-mh rechargeable battery negative plate is by 70-94.5
Polynary layered hydroxide [the Zn of hydrogen-storage alloy, the zinc-base of 1-20 parts by weight of parts by weightxMyM’z(OH)2]·[(Aa-)n·
mH2O], the additive of 0-10 parts by weight, the binding agent composition of the conductive agent of 3-30 parts by weight and 0.5-5 parts by weight, wherein M is
Aluminium, indium, bismuth, lanthanum, cerium, titanium, tin, yttrium or zirconium, M ' are aluminium, indium, bismuth, lanthanum, cerium, titanium, tin, yttrium, copper, nickel or cobalt, Aa-For CO3 2-、
BO2 -、PO4 3-、SO4 2-、OH-、Cl-、F-、S2-、MoO4 2-、WO4 2-, citrate, borate, benzoate anion, detergent alkylate sulphur
One or more in acid group, dodecyl sulphate root or dodecyl sodium sulfonate root, 0.8 >=x >=0.5,0.4>y>0,0.4>z≥
0, x+y+z=1, m>0, n>0, hydrogen-storage alloy AB5Type RE-Ni hydrogen storage, La-Mg-Ni systems have PuNi3Type structure
AB3Type hydrogen-storage alloy or La-Mg-Ni systems have Ce2Ni7The A of type structure2B7Type hydrogen-storage alloy.
2. ni-mh rechargeable battery negative plate according to claim 1, it is characterised in that：The additive is bismuth sulfide, oxygen
Change cerium, the sub- cobalt of vulcanization, cobalt protoxide, bismuth oxide, yittrium oxide, stannous sulfide, erbium oxide, vulcanization sub- nickel, copper sulfide or cupric oxide
In one or more.
3. ni-mh rechargeable battery negative plate according to claim 1, it is characterised in that：The conductive agent be electrically conductive graphite,
One kind in acetylene black, conductive black, CNT, graphene, carbon fiber, sub- titanium oxide, copper powder, nickel powder, cobalt powder or glass putty
It is or a variety of.
4. ni-mh rechargeable battery negative plate according to claim 1, it is characterised in that：The binding agent is carboxymethyl cellulose
Plain sodium, polyvinyl alcohol, polytetrafluoroethylene (PTFE), hydroxypropyl methyl cellulose, Sodium Polyacrylate, polyethylene, Pluronic F-127 or butylbenzene
One or more in rubber.
5. ni-mh rechargeable battery negative plate according to claim 1, it is characterised in that：The ni-mh rechargeable battery negative plate
In active material be supported on carrier or be filled among carrier or load and be wrapped in carrier, the carrier is nickel plating of perforating
Or tin-coated steel band, 3 D stereo steel band, nickel plating stainless (steel) wire, tin plating stainless (steel) wire, Foamed Nickel, foam copper, nickel plating foaming iron or
Copper mesh.
A kind of 6. preparation method of the ni-mh rechargeable battery negative plate in claim 1-5 described in any one, it is characterised in that
The specific preparation process for the negative plate that active material is supported on carrier is：
（1）The preparation of active material slurry：By the polynary stratiform of the zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight
Hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conductive agent of the additive of 0-10 parts by weight and 3-20 parts by weight mixes
Close it is uniform, add binder making by 0.5-5 parts by weight into adhesive solution, stir obtained active matter chylema
Material；
（2）The preparation of ni-mh rechargeable battery negative plate：By step（1）Obtained active material slurry by coating-spreading mould scratch in
Perforate on nickel plating or tin-coated steel band or 3 D stereo steel band or Foamed Nickel or foam copper or nickel plating foaming iron or copper mesh matrix, pass through
Drying, roll-in, cuts obtained ni-mh rechargeable battery negative plate.
A kind of 7. preparation method of the ni-mh rechargeable battery negative plate in claim 1-5 described in any one, it is characterised in that
The specific preparation process that active material is filled in the negative plate among carrier is：
（1）The preparation of active material particle：By the polynary stratiform of the zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight
Hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conductive agent of the additive of 0-10 parts by weight and 3-20 parts by weight mixes
Close it is uniform, add binder making by 0.5-5 parts by weight into adhesive solution, stir, made after drying
Grain obtains active material particle；
（2）The preparation of ni-mh rechargeable battery negative plate：By step（1）Obtained active material particle is by Bao Fenji bags with plating
In the strip capsule that nickel steel band or copper strips are made, then carry out drafting by multiple strip capsules and extrude band on its surface to be subject to
It is fixed, ni-mh rechargeable battery negative plate finally is made through bound edge muscle and collector plate spot welding conduction lug.
A kind of 8. preparation method of the ni-mh rechargeable battery negative plate in claim 1-5 described in any one, it is characterised in that
The specific preparation process for the negative plate that active material is loaded and is wrapped in carrier is：
（1）The preparation of active material slurry：By the polynary stratiform of the zinc-base of the hydrogen bearing alloy of 70-94.5 parts by weight, 1-20 parts by weight
Hydroxide [ZnxMyM’z(OH)2]·[(Aa-)n·mH2O], the conductive agent of the additive of 0-10 parts by weight and 3-20 parts by weight mixes
Close it is uniform, add binder making by 0.5-5 parts by weight into adhesive solution, stir obtained active matter chylema
Material；
（2）The preparation of ni-mh rechargeable battery negative plate：By step（1）Obtained active material slurry by coating-spreading mould scratch in
Perforate on nickel plating or tin-coated steel band or 3 D stereo steel band or Foamed Nickel or foam copper or nickel plating foaming iron or copper mesh matrix, pass through
Drying, roll-in, cut and be prepared into blank pole plate, then coat nickel plating stainless (steel) wire or tin plating stainless (steel) wire or copper mesh or nickel screen
In blank pole plate both sides, eventually through roll-in or welding or roll-in with making blank pole plate be wrapped in nickel plating stainless (steel) wire after welding
Or ni-mh rechargeable battery negative plate is made within tin plating stainless (steel) wire or copper mesh or nickel screen.
9. a kind of ni-mh rechargeable battery, including battery container and pole plate group and electrolyte in battery container, wherein pole plate
Group includes positive plate, negative plate and barrier film or dividing plate, it is characterised in that：The negative plate uses any one in claim 1-5
Ni-mh rechargeable battery negative plate described in.
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| CN201710782809.8A CN107658442B (en) | 2017-09-03 | 2017-09-03 | Negative plate of hydrogen-nickel secondary battery, preparation method thereof and hydrogen-nickel secondary battery using negative plate |
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| CN201710782809.8A CN107658442B (en) | 2017-09-03 | 2017-09-03 | Negative plate of hydrogen-nickel secondary battery, preparation method thereof and hydrogen-nickel secondary battery using negative plate |
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| CN110252421A (en) * | 2019-07-10 | 2019-09-20 | 大英聚能科技发展有限公司 | A kind of conductive catalytic Netowrk tape and preparation method thereof |
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