CN102509774A - Preparation method of zinc electrode used for zinc-air battery - Google Patents
Preparation method of zinc electrode used for zinc-air battery Download PDFInfo
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- CN102509774A CN102509774A CN2011103324704A CN201110332470A CN102509774A CN 102509774 A CN102509774 A CN 102509774A CN 2011103324704 A CN2011103324704 A CN 2011103324704A CN 201110332470 A CN201110332470 A CN 201110332470A CN 102509774 A CN102509774 A CN 102509774A
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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 preparation method of a zinc electrode of a zinc-air battery. The zinc electrode is obtained by carrying out dry pressing and vacuum drying treatment on active zinc powder used for an alkaline battery; the preparation method specifically comprises the following steps of: 1) uniformly mixing zinc powder and a corrosion inhibitor, and a cohesive material according to the mass ratio of the proportion at 100:(0.5-1.0):(2-10)and dispersing so as to form a zinc powder mixture; 2) pouring the zinc powder mixture into a mould paved with an electrical conduction affluxion body, and preparing the zinc electrode with a mould shape under the pressure of 5-15 MPa in a depressed manner; and 3) putting the zinc electrode of the mould shape into a vacuum drying oven, heating for 30-240 minutes at the temperature of 50-200 DEG C, solidifying and bonding the cohesive material in the zinc electrode to obtain the required zinc electrode. The zinc-air battery using the zinc battery can be stored and the problems such as dehydration moisture absorption, leakage and electrolyte carbonation and the like can not occur, and the service life and storage period of the battery are greatly prolonged.
Description
Technical field
The present invention relates to the electrochemical power source technical field, relate in particular to the preparation method of a kind of zinc-air cell with zinc electrode.
Background technology
At present; In the electrochemical power source technical field; Zinc-air cell has specific energy height, stable, safe, cheap, the advantages of environment protection of discharge voltage because its particular structure, thereby is one of emphasis of electrochemical research field concern as novel energy storage device always.
The operation principle of zinc-air cell is: zinc is anode active material, and airborne oxygen is cathode active material, and potassium hydroxide is electrolyte; The anode reaction that zinc is oxidized to zinc oxide takes place on the zinc electrode, oxygen reduction takes place on the air electrode become cathode reaction hydroxy.Because the cathode reaction material is airborne oxygen, need not be stored in the battery, so zinc-air cell can provide than other battery more energy.As the portable mobile apparatus power supply, require generally that volume of battery is little, in light weight, sealing is tight, no gas or liquid spill, capacity are sufficient, it is not quick-fried not fire in the use, can hold out against impact endurance test shock.Zinc electrode is as the negative pole of zinc-air cell, and the quality of its performance will directly influence the discharge performance (operating voltage, discharging current, discharge capacity and power output etc.) and the shelf characteric of battery.
But in the prior art; Employed zinc-air cell mostly with calamine cream, hygrometric state zine plate etc. as zinc electrode; In making assembling process, just added electrolyte solution; Battery exists self discharge, electrolyte solution carbonating, the dehydration or the moisture absorption, climbs problems such as alkali and leakage in storage and use, and the discharge performance of battery is along with the significantly decline of prolongation appearance of time.
Summary of the invention
The purpose of this invention is to provide the preparation method of a kind of zinc-air cell with zinc electrode; Use this zinc battery zinc-air cell can store and use in the dehydration moisture absorption can not appear, problems such as alkali and electrolyte carbonating are climbed in leakage, have prolonged the useful life and the storage period of battery greatly.
The objective of the invention is to realize through following technical scheme:
A kind of zinc-air cell is with the preparation method of zinc electrode, said zinc electrode by alkaline battery with active zinc powder through dry-pressing formed, obtain after the vacuum drying treatment, specifically comprise the steps;
1) be 100 with zinc powder and corrosion inhibiter, binding agent by mass ratio: (0.5～1.0): the mixed of (2～10) back that is uniformly dispersed forms zinc powder mixture;
2) said zinc powder mixture is poured in the mould that is covered with conductive current collector, pressed down at the pressure of 5～15MPa and process zinc electrode with mold shape;
3) said zinc electrode with mold shape is put into vacuum drying chamber, under 50～200 ℃ temperature, heated 30～240 minutes, make the adhesive cures bonding in the zinc electrode, obtain required zinc electrode.
The quality of corrosion inhibiter is 0.5～1.0% of a zinc powder quality in the said zinc powder mixture, and said corrosion inhibiter is inorganic inhibitor or organic inhibitor, specifically comprises indium oxide In
2O
3, indium hydroxide In (OH)
3, thallium oxide Tl
2O
3, lead oxide PbO, cadmium oxide CdO, gallium oxide Ga
2O
3, calcium hydroxide Ca (OH)
2, one or more mixtures in the fluorine-containing surfactant, softex kw, Tween-20, polyvinyl alcohol.
The quality of binding agent is 2～10% of a zinc powder quality in the said zinc powder mixture, and said binding agent comprises one or more mixtures among polytetrafluoroethylene PTFE, carboxyl methyl cellulose, the sodium carboxymethylcellulose CMC-Na.
The said adhesive cures bonding that makes in the zinc electrode obtains required zinc electrode, specifically comprises:
Close heating furnace, the zinc electrode in the vacuum drying chamber with the stove natural cooling, makes the adhesive cures bonding in the zinc electrode in vacuum environment, obtain required zinc electrode.
Technical scheme by the invention described above provides can find out, said zinc electrode by alkaline battery with active zinc powder through dry-pressing formed, obtain after the vacuum drying treatment, specifically comprise the steps; 1) be 100 with zinc powder and corrosion inhibiter, binding agent by mass ratio: (0.5～1.0): the mixed of (2～10) back that is uniformly dispersed forms zinc powder mixture; 2) said zinc powder mixture is poured in the mould that is covered with conductive current collector, pressed down at the pressure of 5～15MPa and process zinc electrode with mold shape; 3) said zinc electrode with mold shape is put into vacuum drying chamber, under 50～200 ℃ temperature, heated 30～240 minutes, make the adhesive cures bonding in the zinc electrode, obtain required zinc electrode.Use this zinc battery zinc-air cell can store and use in the dehydration moisture absorption can not appear, problems such as alkali and electrolyte carbonating are climbed in leakage, have prolonged the useful life and the storage period of battery greatly.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the preparation method schematic flow sheet of zinc-air cell that the embodiment of the invention provides with zinc electrode;
Fig. 2 enumerates the 8A constant-current discharge curve chart that uses the zinc-air cell of this zinc electrode in the instance for the embodiment of the invention;
Fig. 3 enumerates the 10A constant-current discharge curve chart that uses the zinc-air cell of this zinc electrode in the instance for the embodiment of the invention;
Fig. 4 enumerates the 15A constant-current discharge curve chart that uses the zinc-air cell of this zinc electrode in the instance for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
To combine accompanying drawing that the embodiment of the invention is done to describe in detail further below; Zinc-air cell according to the invention with zinc electrode be by alkaline battery with active zinc powder through dry-pressing formed; Obtain after the vacuum drying treatment; Be illustrated in figure 1 as the preparation method schematic flow sheet of zinc-air cell that the embodiment of the invention provides with zinc electrode, said method comprises:
Step 11: is 100 with zinc powder and corrosion inhibiter, binding agent by mass ratio: (0.5～1.0): the mixed of (2～10) back that is uniformly dispersed forms zinc powder mixture;
In this step, the quality of corrosion inhibiter is 0.5～1.0% of a zinc powder quality in the zinc powder mixture, and said corrosion inhibiter is inorganic inhibitor or organic inhibitor, specifically comprises indium oxide (In
2O
3), indium hydroxide (In (OH)
3), thallium oxide (Tl
2O
3), lead oxide (PbO), cadmium oxide (CdO), gallium oxide (Ga
2O
3), calcium hydroxide (Ca (OH)
2), one or more mixtures in the fluorine-containing surfactant, softex kw, Tween-20, polyvinyl alcohol.
The quality of binding agent is 2～10% of a zinc powder quality in the zinc powder mixture, and said binding agent comprises one or more mixtures among polytetrafluoroethylene PTFE, carboxyl methyl cellulose, the sodium carboxymethylcellulose CMC-Na.
Step 12: said zinc powder mixture is poured in the mould that is covered with conductive current collector, pressed down at the pressure of 5～15MPa and process zinc electrode with mold shape.
Step 13: said zinc electrode with mold shape is put into vacuum drying chamber, under 50～200 ℃ temperature, heated 30～240 minutes, make the adhesive cures bonding in the zinc electrode, obtain required zinc electrode.
In concrete implementation procedure, the said adhesive cures bonding that makes in the zinc electrode obtains required zinc electrode, specifically comprises:
Close heating furnace, the zinc electrode in the vacuum drying chamber in vacuum environment with the stove natural cooling, thereby make the adhesive cures bonding in the zinc electrode, obtain required zinc electrode.
In addition, the zinc electrode that obtains through above-mentioned preparation method encapsulates preservation at ordinary times, perhaps is assembled into battery, and electrolyte solution places battery case outside, not with battery in both positive and negative polarity contact, thereby injection electrolyte solution activated batteries fast when having only battery to use.
Obtain after the zinc electrode through above-mentioned preparation method; Use this zinc electrode zinc-air cell can store and use in the dehydration moisture absorption can not appear, problems such as alkali and electrolyte carbonating are climbed in leakage; Prolonged the useful life and the storage period of battery greatly, be specially adapted to use power supply as the portable mobile apparatus in the military or civilian equipment.
Come zinc electrode with concrete instance below, and use the zinc-air cell of this zinc electrode to be elaborated above-mentioned preparation method's acquisition:
Embodiment 1:
At first get 0.2g In (OH)
3, 0.2g CdO, 1g carboxymethyl cellulose (CMC) mix with active zinc powder with the 50g alkaline battery, after mixer stirs, be uniformly dispersed.The zinc powder mixture that forms is poured in the mould, and dry-pressing becomes zinc electrode under the pressure of 5MPa, puts into vacuum drying chamber then and heats 60min down at 100 ℃, cools to room temperature preparation with the furnace and becomes zinc electrode.
Then, the zinc electrode for preparing, air electrode are assembled into zinc-air cell.During use, the liquid injection port through the battery case top is injected 35% KOH electrolyte solution, leaves standstill after 5min treats the electrolyte even diffused; Carry out the constant-current discharge test with the 8A electric current; The setting final voltage is 0.9V, and discharge capacity of the cell is 27.7Ah, and average voltage is 1.08V.The 8A constant-current discharge curve chart of final acquisition zinc-air cell is as shown in Figure 2.
Embodiment 2:
At first get 0.5g In
2O
3, 3g carboxymethyl cellulose (CMC), 3g polytetrafluoroethylene (PTFE) mix with active zinc powder with the 100g alkaline battery, after mixer stirs, be uniformly dispersed.The zinc powder mixture that forms is poured in the mould, and dry-pressing becomes zinc electrode under the pressure of 10MPa, puts into vacuum drying chamber then and heats 30min down at 150 ℃, is prepared into zinc electrode with the stove cooling.
Then, the zinc electrode for preparing, air electrode are assembled into zinc-air cell.During use, the liquid injection port through the battery case top is injected 35% KOH electrolyte solution, leaves standstill after 5min treats the electrolyte even diffused; Carry out the constant-current discharge test with the 10A electric current; The setting final voltage is 0.9V, and discharge capacity of the cell is 55.3Ah, and average voltage is 1.09V.The 10A constant-current discharge curve chart of final acquisition zinc-air cell is as shown in Figure 3.
Embodiment 3:
At first get 0.6g In (OH)
3, 0.3g PbO, 4g sodium carboxymethylcellulose (CMC-Na), 4g polytetrafluoroethylene (PTFE) mix with active zinc powder with the 175g alkaline battery, after mixer stirs, be uniformly dispersed.The zinc powder mixture that forms is poured in the mould, and dry-pressing becomes zinc electrode under the pressure of 15MPa, puts into vacuum drying chamber then and heats 45min down at 120 ℃, is prepared into zinc electrode with the stove cooling.
Then, the zinc electrode for preparing, air electrode are assembled into zinc-air cell.During use, the liquid injection port through the battery case top is injected 35% KOH electrolyte solution, leaves standstill after 5min treats the electrolyte even diffused; Carry out the constant-current discharge test with the 15A electric current; The setting final voltage is 0.9V, and discharge capacity of the cell is 99.1Ah, and average voltage is 1.12V.The 15A constant-current discharge curve chart of final acquisition zinc-air cell is as shown in Figure 4.
In sum, the described zinc electrode of the embodiment of the invention has adopted alkaline battery to use active zinc powder, has reduced the self discharge of zinc electrode, thereby the discharge utilance of zinc electrode is significantly improved; Dried is prepared from after adopting compression moulding simultaneously, has that production technology is simple, product quality is controlled easily and finished product rate advantages of higher; In addition; This zinc electrode stores or is assembled into battery storage before use separately, only when using battery, just from the battery liquid-filling mouth, injects the electrolyte solution activated batteries that configures; Owing to avoided contacting of zinc electrode and electrolyte; The discharge of corrosion certainly of zinc electrode in storage process, can not occur, thereby guarantee the chemical property that battery is high, effectively prolong the shelf life of battery.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (4)
1. a zinc-air cell is characterized in that with the preparation method of zinc electrode, said zinc electrode by alkaline battery with active zinc powder through dry-pressing formed, obtain after the vacuum drying treatment, specifically comprise the steps;
1) be 100 with zinc powder and corrosion inhibiter, binding agent by mass ratio: (0.5～1.0): the mixed of (2～10) back that is uniformly dispersed forms zinc powder mixture;
2) said zinc powder mixture is poured in the mould that is covered with conductive current collector, pressed down at the pressure of 5～15MPa and process zinc electrode with mold shape;
3) said zinc electrode with mold shape is put into vacuum drying chamber, under 50～200 ℃ temperature, heated 30～240 minutes, make the adhesive cures bonding in the zinc electrode, obtain required zinc electrode.
2. zinc-air cell as claimed in claim 1 is characterized in that with the preparation method of zinc electrode,
The quality of corrosion inhibiter is 0.5～1.0% of a zinc powder quality in the said zinc powder mixture, and said corrosion inhibiter is inorganic inhibitor or organic inhibitor, specifically comprises indium oxide In
2O
3, indium hydroxide In (OH)
3, thallium oxide Tl
2O
3, lead oxide PbO, cadmium oxide CdO, gallium oxide Ga
2O
3, calcium hydroxide Ca (OH)
2, one or more mixtures in the fluorine-containing surfactant, softex kw, Tween-20, polyvinyl alcohol.
3. zinc-air cell as claimed in claim 1 is characterized in that with the preparation method of zinc electrode,
The quality of binding agent is 2～10% of a zinc powder quality in the said zinc powder mixture, and said binding agent comprises one or more mixtures among polytetrafluoroethylene PTFE, carboxyl methyl cellulose, the sodium carboxymethylcellulose CMC-Na.
4. zinc-air cell as claimed in claim 1 is characterized in that with the preparation method of zinc electrode the said adhesive cures bonding that makes in the zinc electrode obtains required zinc electrode, specifically comprises:
Close heating furnace, the zinc electrode in the vacuum drying chamber with the stove natural cooling, makes the adhesive cures bonding in the zinc electrode in vacuum environment, obtain required zinc electrode.
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|---|---|---|---|
| CN2011103324704A CN102509774A (en) | 2011-10-27 | 2011-10-27 | Preparation method of zinc electrode used for zinc-air battery |
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|---|---|---|---|
| CN2011103324704A CN102509774A (en) | 2011-10-27 | 2011-10-27 | Preparation method of zinc electrode used for zinc-air battery |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751478A (en) * | 2012-07-03 | 2012-10-24 | 北京中航长力能源科技有限公司 | Zinc gel for zinc-air battery and preparation method thereof |
| CN103985923A (en) * | 2014-04-25 | 2014-08-13 | 华东师范大学 | Quasi-solid electrolyte PVA-zinc-air battery |
| CN104167528A (en) * | 2014-08-19 | 2014-11-26 | 合肥献芝新能源有限公司 | Zinc electrode for zinc-air batteries and preparation method of zinc electrode |
| WO2015085625A1 (en) * | 2013-12-15 | 2015-06-18 | 中国科学院大连化学物理研究所 | Zinc-air battery zinc paste anode preparation device and method for preparing a zinc paste anode |
| CN105826638A (en) * | 2016-05-23 | 2016-08-03 | 徐嘉陵 | Zinc air battery electrode material and application thereof |
| CN105846015A (en) * | 2016-05-23 | 2016-08-10 | 徐嘉陵 | Positive electrode material for metal-air battery and preparation method for positive electrode |
| CN106887565A (en) * | 2017-03-24 | 2017-06-23 | 深圳市合动力科技有限公司 | Zinc-air battery and zinc-air battery, the preparation method of zinc load metallic plate |
| CN106898725A (en) * | 2015-12-17 | 2017-06-27 | 中国科学院大连化学物理研究所 | A kind of zinc/air cell zinc electrode and its preparation |
| CN107112547A (en) * | 2014-10-15 | 2017-08-29 | 品谱公司 | Zinc-air battery surfactant |
| CN112271273A (en) * | 2020-10-27 | 2021-01-26 | 佛山市恩力晟和能源科技有限公司 | Zinc electrode for alkaline secondary battery and preparation method thereof |
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| JPS63124368A (en) * | 1986-11-12 | 1988-05-27 | Sanyo Electric Co Ltd | Manufacture of zinc electrode for alkaline storage battery |
| CN1617383A (en) * | 2004-11-28 | 2005-05-18 | 华南理工大学 | Dry charge type zinc air cell |
| CN101202339A (en) * | 2006-12-15 | 2008-06-18 | 中国电子科技集团公司第十八研究所 | Method for preparation of pull pulp type flexibility zinc electrode |
-
2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63124368A (en) * | 1986-11-12 | 1988-05-27 | Sanyo Electric Co Ltd | Manufacture of zinc electrode for alkaline storage battery |
| CN1617383A (en) * | 2004-11-28 | 2005-05-18 | 华南理工大学 | Dry charge type zinc air cell |
| CN101202339A (en) * | 2006-12-15 | 2008-06-18 | 中国电子科技集团公司第十八研究所 | Method for preparation of pull pulp type flexibility zinc electrode |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751478A (en) * | 2012-07-03 | 2012-10-24 | 北京中航长力能源科技有限公司 | Zinc gel for zinc-air battery and preparation method thereof |
| CN102751478B (en) * | 2012-07-03 | 2014-11-26 | 北京中航长力能源科技有限公司 | Zinc gel for zinc-air battery and preparation method thereof |
| WO2015085625A1 (en) * | 2013-12-15 | 2015-06-18 | 中国科学院大连化学物理研究所 | Zinc-air battery zinc paste anode preparation device and method for preparing a zinc paste anode |
| CN103985923B (en) * | 2014-04-25 | 2017-02-15 | 华东师范大学 | Quasi-solid electrolyte PVA-zinc-air battery |
| CN103985923A (en) * | 2014-04-25 | 2014-08-13 | 华东师范大学 | Quasi-solid electrolyte PVA-zinc-air battery |
| CN104167528B (en) * | 2014-08-19 | 2017-02-15 | 合肥献芝新能源有限公司 | Zinc electrode for zinc-air batteries and preparation method of zinc electrode |
| CN104167528A (en) * | 2014-08-19 | 2014-11-26 | 合肥献芝新能源有限公司 | Zinc electrode for zinc-air batteries and preparation method of zinc electrode |
| CN107112547A (en) * | 2014-10-15 | 2017-08-29 | 品谱公司 | Zinc-air battery surfactant |
| CN107112547B (en) * | 2014-10-15 | 2019-08-16 | 品谱公司 | Zinc-air battery surfactant |
| CN107112547B8 (en) * | 2014-10-15 | 2019-10-01 | 劲量品牌英国有限公司 | Zinc-air battery surfactant |
| CN106898725A (en) * | 2015-12-17 | 2017-06-27 | 中国科学院大连化学物理研究所 | A kind of zinc/air cell zinc electrode and its preparation |
| CN106898725B (en) * | 2015-12-17 | 2019-07-26 | 中国科学院大连化学物理研究所 | A kind of zinc/air cell zinc electrode and its preparation |
| CN105846015A (en) * | 2016-05-23 | 2016-08-10 | 徐嘉陵 | Positive electrode material for metal-air battery and preparation method for positive electrode |
| CN105826638A (en) * | 2016-05-23 | 2016-08-03 | 徐嘉陵 | Zinc air battery electrode material and application thereof |
| CN105846015B (en) * | 2016-05-23 | 2018-11-13 | 徐嘉陵 | A kind of metal-air battery positive electrode and its anode preparation method |
| CN105826638B (en) * | 2016-05-23 | 2018-11-13 | 徐嘉陵 | A kind of zinc-air battery electrode material and its application |
| CN106887565A (en) * | 2017-03-24 | 2017-06-23 | 深圳市合动力科技有限公司 | Zinc-air battery and zinc-air battery, the preparation method of zinc load metallic plate |
| CN112271273A (en) * | 2020-10-27 | 2021-01-26 | 佛山市恩力晟和能源科技有限公司 | Zinc electrode for alkaline secondary battery and preparation method thereof |
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Application publication date: 20120620 |