CN103151490B - Metal/ air battery positive electrode protection method - Google Patents
Metal/ air battery positive electrode protection method Download PDFInfo
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- CN103151490B CN103151490B CN201210562583.8A CN201210562583A CN103151490B CN 103151490 B CN103151490 B CN 103151490B CN 201210562583 A CN201210562583 A CN 201210562583A CN 103151490 B CN103151490 B CN 103151490B
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Abstract
Provided is a metal/air battery positive electrode protection method. The metal/air battery positive electrode protection method comprises the following steps: consecutively coating a protection layer on the periphery of one side surface or two side surfaces of a metal positive electrode, and a positive electrode post terminal and the metal positive electrode are contacted with the located area of the protection layer which is coated at the periphery, and coating a protection layer in a strip shape, or a protection layer in a grid shape on the middle portion of one side surface or two side surfaces of the protection layer in the strip shape coated around the periphery of the metal positive electrode. Materials which are adopted by the protection layer are antiseptic paint, silicone sealant, and epoxy resin. On one hand, the metal/air battery positive electrode protection method is beneficial for preventing metal fuel which is located at the lower half portion of a battery from falling off, and being convenient to wholly take out; on the other hand, a frame which is formed by the metal fuel under a coating layer enables the positive electrode to keep good afflux performance, and improves using ratio of the metal fuel.
Description
Technical field
The present invention relates to metal-air batteries, specifically a kind of for Metal/ air battery positive electrode protection method such as magnesium, aluminium, zinc.
Background technology
Metal-air batteries is a kind of employing metal (as magnesium, aluminium, zinc etc.) is anode fuel, in air, oxygen is as oxidant, alkali lye or neutral brine, as the electrochemical reaction appts of electrolyte solution, have that energy density is high, dry state storage life long, reactant and a feature such as product is pollution-free, work is quiet.Therefore, metal-air batteries has broad application prospects at the numerous areas of the compact powers such as communication power supply, field emergency power supply, mains lighting supply and redundant electrical power.The metals resources such as China's magnesium, aluminium, zinc are abundant, cheap, and development of metallic/air cell technology, to metal industrial structures such as adjustment magnesium, aluminium, zinc, improves portable chemical power technology deposit significant.
Metal-air batteries is using magnesium metal, aluminium, zinc or its alloy as anode fuel.In cell reaction process, due to the impact of the factors such as temperature, liberation of hydrogen, die opening in battery, there is the uneven problem of reaction in metal fuel.Usually, near anode pole and to be in the metal fuel reaction of battery the first half very fast, the metal fuel reaction being in battery the latter half is slower.In the cell reaction later stage, easily there is the latter half metal fuel and be separated and the phenomenon come off with afflux place.Therefore, on the one hand, after coming off, the metal fuel of non-complete reaction not easily takes out, and affects the replacing of new metal fuel; On the other hand, the utilance of metal fuel is reduced.In view of this, the utilance how effectively improving anode metal fuel becomes the key factor affecting metal-air batteries specific energy, maintainability and use cost.
Summary of the invention
The present invention is directed to that existing metal-air batteries anode metal fuel utilance is low, anode pole is easy to and the problems such as metal anode disengaging; propose one and be beneficial to the raising of anode metal fuel utilance; the anodic protection method of the circuit breaker simultaneously avoiding again anode pole and metal anode to depart from and cause, the present invention adopts following concrete scheme to realize:
A kind of Metal/ air battery positive electrode protection method, in the surrounding periphery continuous coating protective layer of the side of metal anode or two side surfaces.
Metal anode is the metal anode with anode pole, and anode pole and metal anode contact position are positioned at the protective layer region that surrounding periphery applies.
Ribbon protective layer or latticed protective layer is coated with in the middle part of side or two side surfaces that metal anode surrounding periphery is coated with ribbon protective layer.
Protective layer length in the coating of surrounding periphery is the 60-100% of surrounding periphery total length.
The protective layer area of metal anode side surface-coated is the 0.1-20% of metal anode one side surface area.
The material that described protective layer adopts is corrosion resistant coating, silicone sealant, epoxy resin.
Compared with prior art, the metal fuel that one aspect of the present invention contributes to preventing from being positioned at battery the latter half comes off, and is convenient to overall taking-up; The afflux performance that the framework obtaining metal fuel formation under coat on the other hand makes anode keep good, improves the utilance of metal fuel.
Accompanying drawing explanation
Fig. 1 is metal-air cell Anodic metal fuel operator guards schematic diagram.
In figure, 1 is anode metal fuel, and 2 is protective layer, and 3 is anode pole.
Embodiment
For further illustrating the present invention, enumerate following examples, but the invention is not restricted to following embodiment.
Fig. 1 is the guard method of a kind of metal-air cell Anodic metal fuel of the present invention.The area of figure Anodic pole plate is 20 × 12cm
2; Anode pole is positioned at anode metal plate top edge centre position; the protective layer that width is 2cm is coated with in plate both sides surrounding periphery; be coated with perpendicular to the centre position of top edge and lower limb the protective layer that width is 2cm in plate both sides; protective layer material therefor is 703 silicone sealants (lily court cards); apply after 24 hours, this anode can load in metal-air cell or pile and uses.After continuous discharge 12h, taken out by metal anode after power-off, metal anode utilance is approximately 80%, and before terminating to electric discharge, battery current collecting performance does not obviously reduce, and the phenomenon that metal anode pole and metallic anode plate depart from does not occur.
Claims (2)
1. a Metal/ air battery positive electrode protection method, is characterized in that: in the surrounding periphery continuous coating protective layer of the side of metal anode or two side surfaces;
Metal anode is the metal anode with anode pole, and anode pole and metal anode contact position are positioned at the protective layer region that surrounding periphery applies;
Protective layer length in the coating of surrounding periphery is the 60-100% of surrounding periphery total length;
The protective layer area of metal anode side surface-coated is the 0.1-20% of metal anode one side surface area;
The material that described protective layer adopts is one or two or more kinds in water-insoluble corrosion resistant coating, silicone sealant, epoxy resin.
2., according to guard method according to claim 1, it is characterized in that:
Ribbon protective layer or latticed protective layer is coated with in the middle part of side or two side surfaces that metal anode surrounding periphery is coated with ribbon protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562583.8A CN103151490B (en) | 2012-12-21 | 2012-12-21 | Metal/ air battery positive electrode protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562583.8A CN103151490B (en) | 2012-12-21 | 2012-12-21 | Metal/ air battery positive electrode protection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103151490A CN103151490A (en) | 2013-06-12 |
| CN103151490B true CN103151490B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210562583.8A Active CN103151490B (en) | 2012-12-21 | 2012-12-21 | Metal/ air battery positive electrode protection method |
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| Country | Link |
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| CN (1) | CN103151490B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789552A (en) * | 2014-12-15 | 2016-07-20 | 中国科学院大连化学物理研究所 | Zinc positive electrode for zinc/air battery |
| CN109904384A (en) * | 2017-12-11 | 2019-06-18 | 中国科学院大连化学物理研究所 | A method of promoting metal fuel battery anode utilization rate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906947Y (en) * | 2006-04-11 | 2007-05-30 | 北京长力联合能源技术有限公司 | Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery |
| CN101267057A (en) * | 2008-05-08 | 2008-09-17 | 复旦大学 | High ratio energy chargeable full-solid lithium air battery |
| CN102668231A (en) * | 2009-09-30 | 2012-09-12 | 法国电气公司 | Rigid negative compartment for a metal-air battery and method of manufacturing said compartment |
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2012
- 2012-12-21 CN CN201210562583.8A patent/CN103151490B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906947Y (en) * | 2006-04-11 | 2007-05-30 | 北京长力联合能源技术有限公司 | Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery |
| CN101267057A (en) * | 2008-05-08 | 2008-09-17 | 复旦大学 | High ratio energy chargeable full-solid lithium air battery |
| CN102668231A (en) * | 2009-09-30 | 2012-09-12 | 法国电气公司 | Rigid negative compartment for a metal-air battery and method of manufacturing said compartment |
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| Publication number | Publication date |
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| CN103151490A (en) | 2013-06-12 |
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