CN105280965A - Single-bag type high-power high-capacity Fe-Ni battery - Google Patents
Single-bag type high-power high-capacity Fe-Ni battery Download PDFInfo
- Publication number
- CN105280965A CN105280965A CN201510787993.6A CN201510787993A CN105280965A CN 105280965 A CN105280965 A CN 105280965A CN 201510787993 A CN201510787993 A CN 201510787993A CN 105280965 A CN105280965 A CN 105280965A
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- Prior art keywords
- battery
- capacity
- negative plates
- pocket type
- type iron
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/30—Nickel accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/248—Iron electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
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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
Abstract
The invention discloses a single-bag type high-power high-capacity Fe-Ni battery which comprises a battery pole set, an electrolyte and a pole rod. The battery pole set and the electrolyte are located in a battery shell, and the pole rod is arranged on the battery shell and connected with the battery pole set. The battery pole set comprises a bag type nickel positive pole plate, a slurry type ferrum negative pole plate, an insulation diaphragm and a gas blocking diaphragm, and the insulation diaphragm and the gas blocking diaphragm are both arranged between the bag type nickel positive pole plate and the slurry type ferrum negative pole plate. The single-bag type high-power high-capacity Fe-Ni battery is high in volumetric specific energy, low in internal resistance, high in discharge power and high in low-temperature discharge capacity.
Description
Technical field
The present invention relates to accumulation power supply technical field, particularly, relate to a kind of single pocket type high-power high-capacity Hawkins cell.
Background technology
The battery capacity of large-scale accumulation power supply needs configuration is large, power is high, the life-span is long, cost is low, environmental protection.Because solar energy and wind power generation are strong and weak by sunshine, wind-force size affects, power quality extremely unstable, directly can not supply industrial application.Therefore a kind of energy storage technology is needed to carry out peak regulation voltage stabilizing.Scene more needs energy storing devices from net generating and valley power.Storage battery is a kind of conventional electricity storage technology, comprises lead accumulator, sodium-sulphur battery, flow battery and lithium ion battery etc.Hawkins cell is compared with lead accumulator, and specific energy, life-span, the feature of environmental protection etc. are good; With sodium-sulphur battery ratio, fail safe is good, cost and working temperature low; With flow battery ratio, specific energy and specific power is high, cost is low; With lithium ion battery ratio, cost, life-span, fail safe and the feature of environmental protection are good.Therefore, Hawkins cell is a kind of well energy-storage battery.
Existing Hawkins cell is a kind of two bag-type battery, comprises pocket type nickel positive pole, pocket type iron negative pole and is arranged on the insulating material between pocket type nickel positive pole, pocket type iron negative pole.Both positive and negative polarity is pocket type plate technique and structure, and insulating material adopts plastic net-board or plastics rod to do to insulate between positive/negative plate, and therefore volumetric specific energy is lower, internal resistance is higher, and discharge-rate is lower, can only low-rate discharge, low temperature discharge ability is weak, does not meet the demand of pure large-scale accumulation power supply.
Summary of the invention
The present invention provides a kind of single pocket type high-power high-capacity Hawkins cell to solve the problems of the technologies described above, and its volumetric specific energy is high, internal resistance is low, discharge power is large and low temperature discharge ability is strong.
The present invention's adopted technical scheme that solves the problem is:
A kind of single pocket type high-power high-capacity Hawkins cell, comprise be positioned at battery case battery pole group with electrolyte, be arranged on battery case and the pole be connected with battery pole group, described battery pole group comprises pocket type nickel anode plate, pull pulp type iron negative plates, insulation diaphragm and gas barrier membrane, and described insulation diaphragm and gas barrier membrane are all arranged between pocket type nickel anode plate, pull pulp type iron negative plates.Technical scheme of the present invention is improved on the basis of existing technology, nickel anode plate is continued to use in existing NI-G bag-type battery and is applied very ripe pocket type nickel anode plate, to retrain the technology of pocket type machinery dry linting, particularly in rectangular cell, pole plate is tied little, need longer problem to solve battery cycle life, can need to be processed into required size according to battery size; Negative pole adopts pull pulp type iron negative plates, and its electrode volume and capacity ratio is high, and pole plate is thinner, can effectively improve battery volumetric specific energy, to solve the problem that full pocket type Hawkins cell specific energy is low and power characteristic is poor; Insulation diaphragm is utilized to realize insulation isolation between pocket type nickel anode plate and pull pulp type iron negative plates and utilize gas barrier barrier film to the circulation of gas in battery, block hydrogen oxygen recombination in battery and reduce heat generation, reduce the heat of inside battery, contribute to preparing high capacity cell, and improve battery discharge power and low temperature discharge ability.
As preferably, in order to further improve conduction and the electrocatalysis characteristic of negative pole, improve the power-performance of battery, described pull pulp type iron negative plates is the pull pulp type iron negative plates that active material original position forms Nanometer Copper.
As preferably, described insulation diaphragm and gas barrier membrane all wrap in pull pulp type iron negative plates.
Further, in order to make battery in use both positive and negative polarity region separation and not short circuit, improve the serviceability of battery, described pull pulp type iron negative plates two sides is provided with insulation diaphragm, and the insulation diaphragm on pull pulp type iron negative plates two sides is welded together by hot pressing mode.
As preferably, in order to further improve volume ratio and the large current discharging capability of battery, described gas barrier barrier film is polypropylene grafted film.
As preferably, described insulation diaphragm is nonwoven fabrics grafted films or sulfonation polypropylene non-woven cloth diaphragm.
As preferably, described electrolyte is potassium oxide electrolyte.Free electric liquid in pregnant solution type electrolyte makes the internal resistance of cell low, and various performance more can give full play to, and fail safe is improved, and can meet pure large-scale accumulation power supply requirement.
As preferably, in order to strengthen the fail safe that battery uses, described battery case is provided with vent valve.
To sum up, the invention has the beneficial effects as follows:
Technical scheme anode plate of the present invention adopts pocket type nickel anode plate, negative plates adopts pull pulp type iron negative plates, and with insulation diaphragm and gas barrier membrane, anode plate and negative plates are completely cut off, can effectively improve volumetric specific energy high, reduce internal resistance, increase discharge power and strengthen low temperature discharge ability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the heavy-current discharge situation negative pole cupric at 4500mA/gFe and the discharge capacity of the cell situation of not cupric.
Fig. 3 is the cryogenic conditions negative pole cupric at 233K and the discharge capacity of the cell situation of not cupric.
Mark and corresponding parts title in accompanying drawing: 1, battery case; 2, cover; 3, pull pulp type iron negative plates; 4, gas barrier barrier film; 5, insulation diaphragm; 6, pocket type nickel anode plate; 7, pole; 8, nut; 9, vent valve.
Embodiment
Below in conjunction with embodiment and accompanying drawing, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
One list pocket type high-power high-capacity Hawkins cell as shown in Figure 1, comprise be positioned at battery case 1 battery pole group with electrolyte, be arranged on battery case 1 and the pole 7 be connected with battery pole group, described battery pole group comprises pocket type nickel anode plate 6, pull pulp type iron negative plates 3, insulation diaphragm 5 and gas barrier membrane 4, and described insulation diaphragm 5 and gas barrier membrane 4 are all arranged between pocket type nickel anode plate 6, pull pulp type iron negative plates 3.
Pull pulp type iron negative plates is by negative electrode active material powder as iron powder, tri-iron tetroxide, di-iron trioxide and additive, bonding agent, mixes by a certain percentage and is modulated into slurry.Slurry is evenly coated in nickel plating Punching steel strip two sides, oven dry, spreading, cut shaping.Existing pocket type iron negative pole, pole plate is thicker, and volumetric specific energy is lower and technique is comparatively complicated.Compared to existing pocket type iron negative pole, the electrode volume and capacity ratio of pull pulp type iron negative plates is high, and pole plate is thinner, can effectively improve battery volumetric specific energy.
Adopt plastic net-board or plastics rod as insulating material between existing anode plate and negative plates, its thickness about 1.0 ~ 2.5mm, transmit ion by electric liquid between both positive and negative polarity, battery volumetric specific energy and heavy-current discharge performance are affected.Insulation diaphragm 5 adopts nonwoven fabrics grafted films or sulfonation polypropylene non-woven cloth diaphragm, and its thinner thickness, namely plays insulating effect, also positive/negative plate spacing is reduced, greatly improve battery volumetric specific energy, reduce the internal resistance of cell, improve battery discharge multiplying power and low temperature discharge ability.
Gas barrier barrier film 4 can adopt polypropylene grafted film.Polypropylene grafted film can intercept gas, but ion can pass through.Adopt polypropylene grafted film as gas barrier barrier film, not only can block hydrogen oxygen recombination in battery and reduce heat generation, reduce the heat of inside battery, contribute to preparing high capacity cell, and to ion without iris action, discharge capability is not affected.
Electrolyte is potassium oxide electrolyte.
In order to the fail safe that battery uses, battery case 1 arranges vent valve 9.
In order to strengthen the reliability that battery uses, the basis of above-described embodiment discloses the set-up mode of a kind of insulation diaphragm 5 and gas barrier membrane 4, and namely insulation diaphragm 5 and gas barrier membrane 4 all wrap in pull pulp type iron negative plates 3.Pull pulp type iron negative plates 3 two sides is provided with insulation diaphragm 5, and the insulation diaphragm 5 on pull pulp type iron negative plates 3 two sides is welded together by hot pressing mode.The insulation diaphragm on pull pulp type iron negative plates two sides is welded together by hot-pressing thermal, makes negative plates dual-side and bottom edge sealing, ensure battery use in both positive and negative polarity region separation and not short circuit, improve reliability and fail safe that battery uses.
Improving conduction and electrocatalysis characteristic to further improve, improving the power-performance of battery, pull pulp type iron negative plates 3 adopts active material original position to form the pull pulp type iron negative plates of Nanometer Copper.The pull pulp type iron negative plates 3 of cupric is prepared by chemical coprecipitation technique.As shown in Figures 2 and 3, in experiment, all the other structures of storage battery are identical, experimental conditions when only negative plates structure is different.Test in Fig. 2 and carry out in the heavy-current discharge situation of 4500mA/gFe, by the pull pulp type iron negative plates that forming technology Nanometer Copper assemble in situ becomes, compared with the negative plates of not cupric, pull pulp type iron negative plates containing Nanometer Copper can release 53% of small area analysis (50mA/gFe) discharge capacity, and cupric negative pole can only not release 10%.In Fig. 3, carry out under the cryogenic conditions of 233K, the pull pulp type iron negative plates containing Nanometer Copper can release 64% of small area analysis (50mA/gFe) normal temperature discharge capacity, and cupric negative pole can only not release 11%.Above data illustrate that negative maximum electric current of the present invention and cryogenic property are obviously improved.
When making, pocket type nickel anode plate adopts the bag nickel anode plate that technology is very ripe, and point welds lug.
Pull pulp type iron negative plates be original position is formed Nanometer Copper negative electrode active material powder as iron powder, tri-iron tetroxide, di-iron trioxide and additive, bonding agent, enter to mix by a certain percentage and be modulated into slurry.Slurry is evenly coated in nickel plating Punching steel strip two sides, cuts into negative plate by oven dry, spreading, and point welds lug formation negative plate.
By insulation diaphragm and gas barrier every wrapping in pull pulp type iron negative plates, pass through hot pressing mode, by the insulation diaphragm thermal welding on pull pulp type iron negative plates two sides together, make pull pulp type iron negative plates dual-side and bottom edge sealing, ensure battery use in both positive and negative polarity region separation and not short circuit;
Again a slice is surrounded by insulation diaphragm and gas barrier every pull pulp type iron negative plates and a slice pocket type nickel anode plate superimposed, and it is superimposed to hocket successively, and composition pole plate group, by bolt, nut 8, is fastenedly connected poling Battery pack by pole 7 and pole plate group;
Pole Battery pack inserts battery case, and battery case is sealed by sweat soldering with lid 2, adds excessive electrolyte, pole plate is all soaked in the electrolytic solution, then installs vent valve 9 and can form battery cell.
As mentioned above, the present invention can be realized preferably.
Claims (8)
1. a single pocket type high-power high-capacity Hawkins cell, comprise the battery pole group that is positioned at battery case (1) and electrolyte, be arranged on the upper and pole (7) be connected with battery pole group of battery case (1), it is characterized in that: described battery pole group comprises pocket type nickel anode plate (6), pull pulp type iron negative plates (3), insulation diaphragm (5) and gas barrier membrane (4), described insulation diaphragm (5) and gas barrier membrane (4) are all arranged between pocket type nickel anode plate (6), pull pulp type iron negative plates (3).
2. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described pull pulp type iron negative plates (3) is the pull pulp type iron negative plates of active material original position formation Nanometer Copper.
3. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described insulation diaphragm (5) and gas barrier membrane (4) all wrap in pull pulp type iron negative plates (3).
4. one according to claim 3 single pocket type high-power high-capacity Hawkins cell, it is characterized in that: described pull pulp type iron negative plates (3) two sides is provided with insulation diaphragm (5), and the insulation diaphragm (5) on pull pulp type iron negative plates (3) two sides is welded together by hot pressing mode.
5. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described gas barrier barrier film (4) is polypropylene grafted film.
6. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described insulation diaphragm (5) is nonwoven fabrics grafted films or sulfonation polypropylene non-woven cloth diaphragm.
7. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described electrolyte is potassium oxide electrolyte.
8. one according to claim 1 single pocket type high-power high-capacity Hawkins cell, is characterized in that: described battery case (1) is provided with vent valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787993.6A CN105280965A (en) | 2015-11-17 | 2015-11-17 | Single-bag type high-power high-capacity Fe-Ni battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787993.6A CN105280965A (en) | 2015-11-17 | 2015-11-17 | Single-bag type high-power high-capacity Fe-Ni battery |
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| Publication Number | Publication Date |
|---|---|
| CN105280965A true CN105280965A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510787993.6A Pending CN105280965A (en) | 2015-11-17 | 2015-11-17 | Single-bag type high-power high-capacity Fe-Ni battery |
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| CN (1) | CN105280965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068991A (en) * | 2017-01-12 | 2017-08-18 | 四川大学 | Iron electrode of the high coulombic efficiency low-temperature rate iron negative material and preparation method thereof with preparation |
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| EP0696822A1 (en) * | 1994-08-11 | 1996-02-14 | Japan Storage Battery Company Limited | Sealed type alkaline battery |
| CN1556553A (en) * | 2004-01-01 | 2004-12-22 | �Ĵ������Դ�������ι�˾ | Positive negative electrode new type composite high specific energy bag type cadmium nickel alkaline battery |
| CN201345381Y (en) * | 2008-09-27 | 2009-11-11 | 刘振铭 | High-energy bag type iron-nickel storage battery used in electric bicycle |
| CN102214822A (en) * | 2010-04-09 | 2011-10-12 | 国立清华大学 | Cathode electrode composite material and preparation method thereof and electrochemical device applying same |
| CN102623710A (en) * | 2012-04-17 | 2012-08-01 | 河南创力新能源科技有限公司 | Foamed iron electrode and preparation method thereof |
| CN102623757A (en) * | 2012-04-17 | 2012-08-01 | 河南创力新能源科技有限公司 | Iron-nickel storage battery adopting steel-strip iron electrode as cathode and preparation method of iron-nickel storage battery |
| CN103107372A (en) * | 2013-03-06 | 2013-05-15 | 佛山市南海新力电池有限公司 | Method for producing iron-nickel alkaline battery |
| CN202996956U (en) * | 2012-12-18 | 2013-06-12 | 河南创力新能源科技有限公司 | Automatic water-replenishing device for valve control type iron-nickel storage battery |
| CN104064822A (en) * | 2014-06-30 | 2014-09-24 | 四川宝生新能源电池有限公司 | Liquid-rich high-power high-capacity nickel-metal hydride power battery |
| CN204067512U (en) * | 2014-06-19 | 2014-12-31 | 杭州纽普新能源有限公司 | A kind of colloidal electrolyte iron-nickel storage battery |
| CN205177974U (en) * | 2015-11-17 | 2016-04-20 | 四川宝生实业发展有限公司 | Single pocket type high power large capacity hawkins cell |
-
2015
- 2015-11-17 CN CN201510787993.6A patent/CN105280965A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0696822A1 (en) * | 1994-08-11 | 1996-02-14 | Japan Storage Battery Company Limited | Sealed type alkaline battery |
| CN1556553A (en) * | 2004-01-01 | 2004-12-22 | �Ĵ������Դ�������ι�˾ | Positive negative electrode new type composite high specific energy bag type cadmium nickel alkaline battery |
| CN201345381Y (en) * | 2008-09-27 | 2009-11-11 | 刘振铭 | High-energy bag type iron-nickel storage battery used in electric bicycle |
| CN102214822A (en) * | 2010-04-09 | 2011-10-12 | 国立清华大学 | Cathode electrode composite material and preparation method thereof and electrochemical device applying same |
| CN102623710A (en) * | 2012-04-17 | 2012-08-01 | 河南创力新能源科技有限公司 | Foamed iron electrode and preparation method thereof |
| CN102623757A (en) * | 2012-04-17 | 2012-08-01 | 河南创力新能源科技有限公司 | Iron-nickel storage battery adopting steel-strip iron electrode as cathode and preparation method of iron-nickel storage battery |
| CN202996956U (en) * | 2012-12-18 | 2013-06-12 | 河南创力新能源科技有限公司 | Automatic water-replenishing device for valve control type iron-nickel storage battery |
| CN103107372A (en) * | 2013-03-06 | 2013-05-15 | 佛山市南海新力电池有限公司 | Method for producing iron-nickel alkaline battery |
| CN204067512U (en) * | 2014-06-19 | 2014-12-31 | 杭州纽普新能源有限公司 | A kind of colloidal electrolyte iron-nickel storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068991A (en) * | 2017-01-12 | 2017-08-18 | 四川大学 | Iron electrode of the high coulombic efficiency low-temperature rate iron negative material and preparation method thereof with preparation |
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Application publication date: 20160127 |
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