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CN106602153A - Electrolyte injection method - Google Patents

Electrolyte injection method Download PDF

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Publication number
CN106602153A
CN106602153A CN201611228864.4A CN201611228864A CN106602153A CN 106602153 A CN106602153 A CN 106602153A CN 201611228864 A CN201611228864 A CN 201611228864A CN 106602153 A CN106602153 A CN 106602153A
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China
Prior art keywords
electrolyte
electric groove
injection
battery
implanting
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Pending
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CN201611228864.4A
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Chinese (zh)
Inventor
陆国明
何世辉
周赛军
王鹏俊
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In A High Tienam Ming Technology Development Ltd Company
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In A High Tienam Ming Technology Development Ltd Company
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Priority to CN201611228864.4A priority Critical patent/CN106602153A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/24Alkaline accumulators
    • H01M10/30Nickel accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides an electrolyte injection method. The electrolyte injection method comprises the following steps of (1) preparing an electrolytic bath comprising an electrode group; (2) performing negative pressure processing on the electrolytic bath; (3) performing electrolyte injection for the first time and centrifuging processing; (4) performing vacuum processing; (5) performing electrolyte injection for the second time and centrifuging processing; and (6) complete electrolyte injection. By adoption of the process which combines negative pressure processing and centrifuging, the problem of high probability of air bubble generation in the only negative pressure processing is relieved, so that the air bubbles generated in a pressure reduction process can be effectively eliminated in a centrifuging process; in addition, the shortcomings of time consumption and low efficiency existing in the only centrifuging process are also overcome, so that the air bubbles generated in the negative pressure process are eliminated and a good effect with uniform permeation is obtained; and furthermore, by adoption of the process, absorption of the electrolyte on an electrode plate can be well ensured, and the actual discharging capacity of the battery is also greatly improved.

Description

A kind of method for implanting of electrolyte
Technical field
The present invention relates to the manufacture field of Ni-H cell, more particularly to a kind of method for implanting of electrolyte.
Background technology
The chemical property of battery is closely related with its manufacture process, and the product quality of battery is largely dependent upon The technology controlling and process of its manufacture process.The manufacture of battery is a complicated process, including multiple different technical processs, each Technical process includes many little operations again, and the technological effect of each operation can be very big to the generation of the chemical property of battery Affect.The injection process of wherein electrolyte is one of critical process process in manufacture process, the injection and absorption of electrolyte Effect directly affects the chemical property such as the capacity of battery and discharge and recharge concordance.If the electrolyte in injection battery can not be with Pole piece and barrier film in battery core infiltrates well, can cause cannot not release with the capacity of the pole piece of electrolyte contacts, cause The reduction of battery capacity.The quality of the assimilation effect of electrolyte, influences whether the performances such as the internal resistance of cell and multiplying power, so as to affect The discharge and recharge concordance of battery.
Traditional fluid injection mode of the battery such as hydrogen nickel is generally manual fluid injection, descends naturally liquid at present, i.e. injection electrolysis by hand After liquid, allow electrolyte to be naturally flowed in the middle of battery under its action of gravity and be absorbed.Under this nature, liquid mode is present Easily often there are the defects such as battery leakage note, few note to lower liquid speed degree very slow, electrolyte in excessive, Jing, limits fluid injection operation production capacity, Also directly result in a series of defective products batteries such as appearance open circuit, low capacity, big internal resistance.Additionally, this method is also inhaled by barrier film The factors interference such as alkali speed, battery pole group elasticity, air humidity, artificial.Centrifugal liquid filling method is solved to a certain extent Determine the problems referred to above, it adopts equipment for separating liquid from solid, and single battery is distributed on around rotating shaft, produced using during pivot Centrifugal force accelerate the flowing of electrolyte, but, this method speed of operation is slow, serialization low degree, it is impossible to adapt to battery work The requirement of industryization batch production, causes fluid injection less efficient.
JP09-102443A discloses following electrolyte method for implanting:In order to electrolyte is efficiently noted
Enter in battery case, by injecting the electrolyte in the environment after decompression in battery case, promote electrolyte Infiltration in the gap of electrode group.In the environment after decompression, the volume of the gas being dissolved in electrolyte sharp expands And be easy to produce bubble.Accordingly, it would be desirable to lentamente carry out the injection of electrolyte, so as to produced bubble will not make electrolyte from Battery case overflows.I.e., in the prior art, even if promoting electrolyte to the infiltration in the gap of electrode group, also end must The fluid injection time can be shortened.
CN1705147A discloses a kind of method of battery pressurized liquid injection, and the method is included the battery
Liquid injection hole be connected and affixed firm with liquid device is contained, then the battery is carried out together with containing liquid device and being placed in vacuum room Evacuation, stops taking out true after in vacuum chamber, vacuum degree reaches -0.06 to -0.10 MPa
Sky, then dry air or noble gases are injected into vacuum room, continue pressurization until being atmospherically raised in vacuum room After 1.5-2.5 MPa of high-voltage value, constant pressure 1.5-2.5 minutes release vacuum chamber inner high voltage, take out added from vacuum room The battery of pressure injection liquid.The method by carrying out to battery case after evacuation, fluid injection under elevated pressure, and keep certain hour, necessarily Wetting action of the electrolyte to pole piece is reached in degree, but the method for the evacuation adopted in the invention can not be by battery Completely vacuum is pumped in shell, and during inflating pressure fluid injection, necessarily has gas to enter in battery case, this part is empty Gas reduces volume limited in battery case so that without injecting more electrolyte contents in normal direction battery.
In order to improve the injection rate of electrolyte, it is thus proposed that (be such as heated to 40-60 DEG C) after organic electrolyte is heated Reinject in battery container, to reduce the viscosity and surface tension of electrolyte, so as to strengthen the mobility of electrolyte, promote its Absorption in battery core.But as organic electrolyte is volatile, the electrolyte actual constituent for often leading to inject battery changes, And seal operation is needed, the pipeline and battery container passed through to electrolyte will also carry out heat treated, cumbersome.
Therefore, in prior art with regard to electrolyte filling method, liquid, manual fluid injection and vacuum or centrifugal liquid filling is descended naturally to deposit In corresponding defect, or fluid injection inefficiency, or be difficult to electrolyte existing
Fully absorb on electrode slice, and greatly reduce the actual discharge capacity of battery, and injection process is also
Produce the other factorses such as bubble and cause electrolyte to be difficult complete injection.
The content of the invention
Present invention aim to provide a kind of method for implanting of electrolyte, the method can fully ensure that electrolyte exists Absorption on electrode slice, electrolyte permeability completely, can be uniformly distributed in battery core, injection process bubble produce it is less, and can be Efficiently injected in reasonable time.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of method for implanting of electrolyte, it is characterised in that comprise the steps:
(1)The electric groove comprising electrode group is prepared, the electrode group is wound by the positive plate and negative plate across barrier film and is formed;
(2)Electric groove is placed in the good fluid injection area of sealing, pumping process is carried out using air pump to described electric groove so that Air pressure inside the electric groove is changed into negative pressure;
(3)Carry out first time electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500-2000rpm, centrifugation time For 30-60s;30-60% of the injection rate of the first time electrolyte injection for electrolyte gross weight;
(4)After first time fluid injection terminates, evacuation process is carried out to electric groove, the vacuum treated time is 60-120min, evacuation Vacuum be less than 0.09MPa;
(5)Carry out second electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500-2000rpm, centrifugation time For 30-60s;40-70% of the injection rate of the second electrolyte injection for electrolyte gross weight;
(6)To the inside of electric groove, charged pressure is the nitrogen of 0.020-0.035MPa and keeps 40-70s;By electric groove internal pressure relief, i.e., Complete fluid injection;
Described electrolyte is alkaline electrolyte, and which is applied to based on nickel hydroxide the positive pole of positive active material, with hydrogen storage In battery of the alloy as the hydrogen storage alloy negative of negative electrode active material, tungsten compound, molybdenum in the alkaline electrolyte, are added with One kind in compound, niobium compound and various, the proportion of the alkaline electrolyte is about 1.3.
Wherein, the barrier film is weave cotton cloth non-woven fabrics, one kind of synthetic resin micro-porous film;Its weight per unit area is 55g/ m2Below.
The hydrogen bearing alloy is with formula Ce1-xZrxMgNiy-a-bAlaMb, wherein, M is the one kind in Co, Mn, Zn, 0.1≤x ≤ 0.3,3.0≤y≤3.8,0.1≤a≤0.3,0.1≤x≤0.5.
Solid solution in the nickel hydroxide positive plate active substance has selected from cobalt (Co), zinc (Zn), manganese (Mn), silver-colored (Ag), magnesium (Mg) at least one element and in aluminum (Al) element.
The alkaline electrolyte is with potassium hydroxide (KOH) as main material, and includes sodium hydroxide (NaOH).
The viscosity of the electrolyte is not higher than 20cp.
The drying meanss of the anelectrode of the positive active material based on nickel hydroxide adopt infrared-laser-hot blast three Energy integrated combination drying mode, specifically includes:(1)One exsiccator for including conveying member and drying part is set;(2)In length While electrode base material is transferred to outlet by the entrance of drying part by the conveying member on direction, to being coated with electrode The band electrode base material of slurry is dried;Wherein, the conveying member will be in the drying part for flatly supporting The electrode base material of transmission, the conveying member are connected with certain spacing by some rollers and are constituted, and the spacing is 10- 20cm;The temperature of the infrared drying is 100 DEG C, and the temperature that the laser is dried is 110 DEG C, and the temperature of the forced air drying is 90℃。
In addition, present invention also offers a kind of alkaline battery, possesses alkaline electrolyte and electrode group, institute in outer package jar Electrode group is stated by the hydrogen storage alloy negative with hydrogen bearing alloy as negative electrode active material, with nickel hydroxide as main positive active material Nickel positive pole and barrier film constitute, wherein, the hydrogen bearing alloy is with formula Ce1-xZrxMgNiy-a-bAlaMb, wherein, M be Co, Mn, One kind in Zn, 0.1≤x≤0.3,3.0≤y≤3.8,0.1≤a≤0.3,0.1≤x≤0.5;The nickel hydroxide positive plate is lived Property material in solid solution have in cobalt (Co), zinc (Zn), manganese (Mn), silver-colored (Ag), magnesium (Mg) and aluminum (Al) element at least one Plant element;The alkaline electrolyte is with potassium hydroxide (KOH) as main material, and includes sodium hydroxide (NaOH), and alkaline electrolysises One kind for being added with liquid in tungsten compound, molybdenum compound, niobium compound and various, the proportion of the alkaline electrolyte is about 1.3;The barrier film is weave cotton cloth non-woven fabrics, one kind of synthetic resin micro-porous film, and its weight per unit area is 55g/m2Below;Separately Outward, the injection of the electrolyte is to adopt to carry out with the aforedescribed process.
The invention has the beneficial effects as follows:The present invention combines the technique of centrifugation using Negative pressure, on the one hand improves simple Negative pressure is easily caused bubble generation, can effectively be eliminated in centrifugal process in the bubble produced by decompression process, in addition, The technique also improves the shortcoming of simple centrifugal process time-consuming and inefficient, and after negative pressure liquid injection, most of electrolyte has been completed Injection, follow-up centrifugation only need 30-60s to complete, and its main purpose is to eliminate the bubble of negative pressure process generation and obtain uniform The good result of infiltration, the technique can preferably ensure absorption of the electrolyte on electrode slice, substantially increase the reality of battery Discharge capacity;In addition, the present invention is changed to repeat fluid injection toward secondary from existing single fluid injection, to remove electric groove inner dead space residue gas Bubble, so as to greatly promote battery core fluid injection operation qualification rate, improves fluid injection operation on the premise of overall throughput is not affected Battery core quality.
Specific embodiment
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common The every other embodiment obtained under the premise of creative work is not made by technical staff, belongs to the model of present invention protection Enclose.
Embodiment 1
A kind of method for implanting of electrolyte, comprises the steps:
(1)The electric groove comprising electrode group is prepared, the electrode group is wound by the positive plate and negative plate across barrier film and is formed;
(2)Electric groove is placed in the good fluid injection area of sealing, pumping process is carried out using air pump to described electric groove so that Air pressure inside the electric groove is changed into negative pressure;
(3)Carry out first time electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 2000rpm, and centrifugation time is 30s;The injection rate of the first time electrolyte injection is the 60% of electrolyte gross weight;
(4)After first time fluid injection terminates, carry out evacuation process to electric groove, the vacuum treated time is 60min, evacuation it is true Reciprocal of duty cycle is less than 0.09MPa;
(5)Carry out second electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 2000rpm, and centrifugation time is 30s;The injection rate of the second electrolyte injection is the 40% of electrolyte gross weight;
(6)To the inside of electric groove, charged pressure is the nitrogen of 0.020MPa and keeps 70s;By electric groove internal pressure relief, that is, complete fluid injection.
Embodiment 2
A kind of method for implanting of electrolyte, comprises the steps:
(1)The electric groove comprising electrode group is prepared, the electrode group is wound by the positive plate and negative plate across barrier film and is formed;
(2)Electric groove is placed in the good fluid injection area of sealing, pumping process is carried out using air pump to described electric groove so that Air pressure inside the electric groove is changed into negative pressure;
(3)Carry out first time electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500rpm, and centrifugation time is 60s;The injection rate of the first time electrolyte injection is the 50% of electrolyte gross weight;
(4)After first time fluid injection terminates, carry out evacuation process to electric groove, the vacuum treated time is 80min, evacuation it is true Reciprocal of duty cycle is less than 0.09MPa;
(5)Carry out second electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500rpm, and centrifugation time is 60s;The injection rate of the second electrolyte injection is the 50% of electrolyte gross weight;
(6)To the inside of electric groove, charged pressure is the nitrogen of 0.03MPa and keeps 50s;By electric groove internal pressure relief, that is, complete fluid injection.
Embodiment 3
A kind of method for implanting of electrolyte, comprises the steps:
(1)The electric groove comprising electrode group is prepared, the electrode group is wound by the positive plate and negative plate across barrier film and is formed;
(2)Electric groove is placed in the good fluid injection area of sealing, pumping process is carried out using air pump to described electric groove so that Air pressure inside the electric groove is changed into negative pressure;
(3)Carry out first time electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1800rpm, and centrifugation time is 45s;The injection rate of the first time electrolyte injection is the 30% of electrolyte gross weight;
(4)After first time fluid injection terminates, evacuation process is carried out to electric groove, the vacuum treated time is 120min, evacuation Vacuum is less than 0.09MPa;
(5)Carry out second electrolyte injection to described electric groove, and treat above-mentioned fluid injection terminate the backward electric groove apply from Mental and physical efforts, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1800rpm, and centrifugation time is 45s;The injection rate of the second electrolyte injection is the 70% of electrolyte gross weight;
(6)To the inside of electric groove, charged pressure is the nitrogen of 0.035MPa and keeps 45s;By electric groove internal pressure relief, that is, complete fluid injection.
The battery of embodiment of the present invention 1-3 makes:The positive pole that separated by membrane for polymer and negative pole are carried out being laminated, Winding, so as to constitute electrode group.On the top of electrode group, by positive pole current collections plate weld the nickel sintered base plate of positive pole exposed division Point.In addition, in the bottom of electrode group, negative electrode collector plate to be welded on the exposed portion of the punch metal substrate of negative pole.Then, will Electrode group is accommodated in the battery case of corresponding size, and the central point of negative electrode collector plate is welded in the bottom of battery case.Then Alkaline electrolyte, the method that wherein electrolyte filling method is respectively adopted embodiment 1-3 are injected in battery case.Then, in electrode group Top place upper portion insulating plate, possess the peristome of the hush panel sealed battery shell of seal washer with edge part, wherein sealing Relief valve and positive terminal are housed on oralia.It should be noted that:Before sealing, positive pole current collections plate and positive electrode cap should be carried out electricity Connection.So, enclosed cell 1-3 has just been made.
Wherein, the positive pole of above-mentioned battery is that nickel hydroxide is just with the nickel positive pole that nickel hydroxide is main positive active material Solid solution in the active substance of pole has cobalt (Co), zinc (Zn), three kinds of elements of manganese (Mn);Negative pole is hydrogen storage alloy negative, hydrogen bearing alloy with Formula Ce0.7Zr0.3MgNi3Al0.2M0.3, wherein, M is Zn;Alkaline electrolyte is with potassium hydroxide (KOH) as main material, and includes Sodium hydroxide (NaOH), and in alkaline electrolyte, it is added with niobium compound sodium niobate.Wherein, the concrete preparation process of electrode referring to Prior art literature CN103457001A.
Battery testing:
The activation of battery:For battery 1-3, following initial stage activation is processed and is repeated twice:Below 25 DEG C of temperature, with After the charging current of 200mA (0.lIt) carries out the charging of 16 hours, with 400mA (0.2It)Discharge current discharged, Until cell voltage is changed into 0.5V.So, battery 1-3 is made to be changed into the state that can be used.
Self-discharge characteristics is tested:
For the battery 1-3 that initial stage activation is processed is completed, under 25 DEG C of atmosphere, with 2000mA (1.0It)Charging current enter Row charges, and after making cell voltage reach maximum, carries out the charging that voltage is reduced to l0mV, i.e., so-called-Δ V controls are charged (hereinafter referred to as-Δ V charges), afterwards, is discharged with the discharge current of 400mA (0.2It) under identical atmosphere, Until final discharging voltage is changed into 1.0V, the discharge capacity of now battery is determined.Using discharge capacity now as initial capacity. Then, under 25 DEG C of atmosphere ,-Δ V chargings are carried out with the charging current of 2000mA (1.0It), afterwards, in 60 DEG C of atmosphere After lower placement two weeks, discharged with the discharge current of 400mA (0.2It) under 25 DEG C of atmosphere, until final discharging voltage It is changed into 1.0V, determines the discharge capacity of now battery.Using discharge capacity now as capacity after placement.Then, try to achieve in (V) Represented capacity survival rate (%).
Capacity survival rate (%)=(capacity/initial capacity after placement) × 100 (V)
The results are shown in Table 1:
Embodiment 1 Embodiment 2 Embodiment 3
Capacity survival rate(%) 89.7 88.5 87.4
The capacity survival rate of embodiment 1-3 battery is all higher as can be seen from Table 1, and its self-discharge characteristics is greatly improved, electricity The better performances in pond.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art Understandable other embodiment.

Claims (8)

1. a kind of method for implanting of electrolyte, it is characterised in that comprise the steps:
(1)The electric groove comprising electrode group is prepared, the electrode group is wound by the positive plate and negative plate across barrier film and is formed;
Electric groove is placed in the good fluid injection area of sealing, pumping process is carried out using air pump to described electric groove so that institute State the air pressure inside electric groove and be changed into negative pressure;
First time electrolyte injection is carried out to described electric groove, and treats that above-mentioned fluid injection terminates the backward electric groove and applies centrifugation Power, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500-2000rpm, and centrifugation time is 30-60s;30-60% of the injection rate of the first time electrolyte injection for electrolyte gross weight;
After first time fluid injection terminates, evacuation process is carried out to electric groove, the vacuum treated time is 60-120min, evacuation Vacuum is less than 0.09MPa;
Second electrolyte injection is carried out to described electric groove, and treats that above-mentioned fluid injection terminates the backward electric groove and applies centrifugation Power, the centrifugation are carried out on the centrifugal device with rotating disk, and the rotating speed of the rotating disk is 1500-2000rpm, and centrifugation time is 30-60s;40-70% of the injection rate of the second electrolyte injection for electrolyte gross weight;
To the inside of electric groove, charged pressure is the nitrogen of 0.020-0.035MPa and keeps 40-70s;It is by electric groove internal pressure relief, i.e., complete Into fluid injection;
Described electrolyte is alkaline electrolyte, and which is applied to based on nickel hydroxide the positive pole of positive active material, with hydrogen storage In battery of the alloy as the hydrogen storage alloy negative of negative electrode active material, tungsten compound, molybdenum in the alkaline electrolyte, are added with One kind in compound, niobium compound and various, the proportion of the alkaline electrolyte is about 1.3.
2. the method for implanting of electrolyte according to claim 1, it is characterised in that the barrier film is non-woven fabrics of weaving cotton cloth, closes One kind of resin micro-porous film;Its weight per unit area is 55g/m2Below.
3. the method for implanting of electrolyte according to claim 1, it is characterised in that the hydrogen bearing alloy is with formula Ce1- xZrxMgNiy-a-bAlaMb, wherein, M be Co, Mn, Zn in one kind, 0.1≤x≤0.3,3.0≤y≤3.8,0.1≤a≤0.3, 0.1≤b≤0.5。
4. the method for implanting of electrolyte according to claim 1, it is characterised in that the nickel hydroxide positive plate active matter Solid solution in matter has at least one unit in cobalt (Co), zinc (Zn), manganese (Mn), silver-colored (Ag), magnesium (Mg) and aluminum (Al) element Element.
5. the method for implanting of electrolyte according to claim 1, it is characterised in that the alkaline electrolyte is with potassium hydroxide (KOH) it is main material, and includes sodium hydroxide (NaOH).
6. the method for implanting of electrolyte according to claim 1, it is characterised in that the viscosity of the electrolyte is not higher than 20cp。
7. the method for implanting of electrolyte according to claim 6, it is characterised in that described with nickel hydroxide as main positive pole The drying meanss of the anelectrode of active substance are specifically included using infrared-three energy integrated combination drying mode of laser-hot blast:(1) One exsiccator for including conveying member and drying part is set;(2)The conveying member is relied in the longitudinal direction by electrode base While material is transferred to outlet by the entrance of drying part, the band electrode base material to being coated with electrode slurry is dried;Its In, the conveying member is used to flatly support the electrode base material that will be transmitted in the drying part, the transmission structure Part is connected with certain spacing by some rollers and is constituted, and the spacing is 10-20cm;The temperature of the infrared drying is 100 DEG C, The temperature that the laser is dried is 110 DEG C, and the temperature of the forced air drying is 90 DEG C.
8. a kind of alkaline battery, it is characterised in that possess alkaline electrolyte and electrode group in outer package jar, the electrode group by Hydrogen storage alloy negative with hydrogen bearing alloy as negative electrode active material, based on nickel hydroxide the nickel positive pole of positive active material and Barrier film is constituted, wherein, the hydrogen bearing alloy is with formula Ce1-xZrxMgNiy-a-bAlaMb, wherein, M is the one kind in Co, Mn, Zn, 0.1≤x≤0.3,3.0≤y≤3.8,0.1≤a≤0.3,0.1≤b≤0.5;It is solid in the nickel hydroxide positive plate active substance Dissolved with least one element in cobalt (Co), zinc (Zn), manganese (Mn), silver-colored (Ag), magnesium (Mg) and aluminum (Al) element;Institute Alkaline electrolyte is stated with potassium hydroxide (KOH) as main material, and includes sodium hydroxide (NaOH), and be added with alkaline electrolyte One kind in tungsten compound, molybdenum compound, niobium compound and various, the proportion of the alkaline electrolyte is about 1.3;The barrier film For non-woven fabrics of weaving cotton cloth, one kind of synthetic resin micro-porous film, its weight per unit area is 55g/m2Below;In addition, the electrolysis The injection of liquid is carried out using the method described in claim 1.
CN201611228864.4A 2016-12-27 2016-12-27 Electrolyte injection method Pending CN106602153A (en)

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CN107195854A (en) * 2017-07-03 2017-09-22 包头昊明稀土新电源科技有限公司 Water system power battery liquid-injection technique and device
CN109390639A (en) * 2018-09-03 2019-02-26 中车青岛四方车辆研究所有限公司 Pregnant solution type accumulation energy type nickel-metal hydride battery and its application on rail vehicle auxiliary power supply system
CN112146956A (en) * 2020-09-24 2020-12-29 中国科学院重庆绿色智能技术研究院 Glass needle tip nanopore filling device based on vacuum method and using method thereof

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CN107195854A (en) * 2017-07-03 2017-09-22 包头昊明稀土新电源科技有限公司 Water system power battery liquid-injection technique and device
CN109390639A (en) * 2018-09-03 2019-02-26 中车青岛四方车辆研究所有限公司 Pregnant solution type accumulation energy type nickel-metal hydride battery and its application on rail vehicle auxiliary power supply system
CN112146956A (en) * 2020-09-24 2020-12-29 中国科学院重庆绿色智能技术研究院 Glass needle tip nanopore filling device based on vacuum method and using method thereof
CN112146956B (en) * 2020-09-24 2023-06-20 中国科学院重庆绿色智能技术研究院 Glass needle tip nano-hole filling device based on vacuum method and using method thereof

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Application publication date: 20170426