CN1543001A - Magnesium sea water battery - Google Patents
Magnesium sea water battery Download PDFInfo
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- CN1543001A CN1543001A CNA2003101139511A CN200310113951A CN1543001A CN 1543001 A CN1543001 A CN 1543001A CN A2003101139511 A CNA2003101139511 A CN A2003101139511A CN 200310113951 A CN200310113951 A CN 200310113951A CN 1543001 A CN1543001 A CN 1543001A
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Abstract
This invention relates to a Mg sea-water cell based on the fuel cell technology theory which converts the dissolved oxygen in the sea to a cathode active substance by inert cathode, takes the sea water as the cell electrolyte and applies high potential Mg alloy as the anode to make it an independent chemical cell after immerging it in the sea. The cell only consumes Mg alloy anode when working and changes a new one after the Mg alloy anode is finished. The cell can work for a long time at a reliable and stable situation since the cell has a large capacity not necessary to have any pressure container, one Mg alloy anode can work continuously for 1-2 years, especially suitable for the work in the deep sea or the bottom.
Description
Technical Field
The invention relates to a chemical power supply, in particular to a chemical power supply for forming a battery by using seawater as electrolyte, using dissolved oxygen in the seawater as cathode active material and oxidizing and dissolving magnesium alloy.
Background
Seawater occupies about seven tenths of the surface area of the earth. In recent years, great attention is paid to ocean development, ocean engineering, ocean military, ocean bottom exploration and research require power supplies, particularly, equipment working in deep sea or ocean bottom for a long time needs to be anchored to the ocean bottom, and electric energy required by the equipment is generally supplied by cables on the ocean surface or lithium batteries, alkaline batteries, zinc-oxygen batteries and the like sealed in pressure-resistant containers. Deep sea is particularly demanding for pressure-resistant containers, and in some cases, it is necessary to separate the pressure-resistant container for discharging batteries from the electronic equipment in order to prevent hydrogen gas and corrosive electrolytes precipitated from the battery pack from damaging the equipment. The power supply is very complicated whether the electric energy is transmittedby a cable from the sea surface or the chemical power source is arranged in a container, so that the equipment cost and the operation cost are greatly increased. How to fully utilize the self condition of the ocean to provide electric energy for equipment is one of important topics in ocean development.
In 1860, m. davis found that AgCl is a good performing battery cathode active material, in 1880 AgCl water batteries were studied and made, and AgCl/seawater batteries were later developed. The AgCl/seawater battery adopts AgCl as a positive electrode, magnesium alloy as a negative electrode and seawater as battery electrolyte for discharge reaction:
and (3) positive pole reaction:
and (3) cathode reaction:
side reaction:
and (3) total reaction:
the theoretical electromotive force of an AgCl/seawater cell is 2.585 volts, with an actual voltage of 1.6 volts. The battery pack is stacked to obtain a high voltage. The AgCl/seawater battery has excellent performance, the specific capacity is 150-300 watt-hour/liter (100-150 watt-hour/kilogram), and the specific power is 2400 watt/liter (1200 watt/kilogram). Due to the unique performance of AgCl/seawater batteries, it has attracted extensive attention and interest during world war ii. The AgCl/seawater battery is used as a military and civil power supply for marine observation instruments, wireless navigation marks, distress rescue and help calling equipment, night fishing buoys, main torpedo power supplies and the like.
The disadvantage of AgCl/seawater batteriesis that silver chloride materials are expensive, high production costs and limited applications. Therefore, the seawater battery with low production cost and low price needs to be developed. As a disposable seawater battery, a low-priced metal can be used for the negative electrode, and metals that theoretically can provide much electrochemical energy include Li, Na, Ca, Mg, Al, Zn, and the like. Li, Na and Ca are highly active alkali metals, and the reaction with water and seawater is very violent and difficult to control, so that Li, Na and Ca are not generally adopted. The aluminum reacts with the seawater to generate a passive film, so that the battery reaction is prevented from continuing, and the working voltage of the battery is low. In order to overcome this problem, there have been used electrodes which are made of aluminum with elements such as mercury added thereto and are used once only in a thin aluminum sheet, but the battery has a limited capacity and is inconvenient to use, and thus the use thereof is limited. Although zinc is easy to process and does not generate side reaction with seawater, the voltage is lower than that of magnesium, and the dissolved zinc is easy to be reduced into dendritic zinc crystals by common electrolyte during discharging, which can cause short circuit of the battery,zinc is not suitable as a negative electrode material for a seawater battery. The magnesium has high voltage, can work at high current, does not generate a passive film, particularly has lower price in recent years, and is a cheap and good negative electrode material of a seawater battery. Magnesium is made into a magnesium alloy by adding alloy elements, and the discharge performance is further improved, so that the magnesium alloy should be used for manufacturing the magnesium seawater battery. According to different anode materials adopted by the battery, a plurality of series of magnesium seawater batteries can be formed: Mg/AgCl, Mg/CuCl, Mg/CuSO4、Mg/PbO2、Mg/PbCl2Mg/NiOOH, and the like. Magnesium seaThe water battery has higher specific energy and is widely applied in military, wherein the Mg/PbO is used as the main power supply of the torpedo2A seawater battery.
The above seawater battery, which is manufactured by processing and converting the materials and the positive electrode, still has a large proportion of the cost of the battery, and especially the above seawater battery generally has a short working time and is not suitable for the marine equipment which needs to work for a long time. Many marine facilities now need to operate in the ocean for more than a year, and therefore, it is urgently needed to develop a seawater battery which can operate for a long time, has high reliability, and is low in production cost and operation cost.
Disclosure of Invention
The invention aims to obtain a seawater battery which has large capacity, can stably work for a long time, does not need maintenance, has low cost and high reliability, is particularly suitable for the requirements of marine equipment in deep sea and seabed, and can continuously work for 1 to 2 years at most by replacing an anode once.
The pH value of the seawater is 8.1-8.3, the dissolved oxygen concentration is approximately changed within the range of 5-10ppm (the dissolved oxygen concentration of the seawater is large in the range of the water depth less than 100 meters and more than 1000 meters); the seawater dissolves a great amount of salt mainly containing sodium chloride, the total salt content of the seawater varies with regions, and the seawater is regarded as a solution containing 3.5 percent of sodium chloride approximately, and has high conductivity. According to the above characteristics of seawater, there are both the characteristics of the cathode active material, dissolved oxygen, and the electrolyte (3), high liquid conductivity, and therefore the present invention proposes a seawater battery. The principle of the seawater cell is based on that oxygen is a cathode active substance of the fuel cell, dissolved oxygen in seawater is converted into the cathode active substance of the seawater cell through an inert cathode (2) by utilizing the technical principle of the fuel cell, a magnesium alloy which is not passivated in the seawater and has high potential is used as an anode (1), the seawater with high conductivity is used as an electrolyte (3), and the anode and the cathode are immersed in the seawater to form the independent chemical cell.
When the magnesium seawater battery works, only the magnesium alloy anode (1) is consumed, the magnesium alloy anode (1) can be replaced with a new one after being consumed, and the cathode is long in service life; in addition, the magnesium seawater battery does not need a pressure container, so that the equipment is simple, and the expense of marine equipment and the operating expense can be greatly reduced. The salt content in deep sea below 1000 m is almost consistent, the dissolved oxygen is higher, the self-corrosion of the magnesium alloy anode is smaller due to low water temperature and high seawater pressure, and therefore, the magnesium alloy anode is particularly suitable for the operation of a seawater battery.
Because of the corrosivity of seawater, the cathode material of the magnesium seawater battery firstly needs to have good corrosion resistance, most metals (iron, steel, zinc, copper) and the like are easy to corrode due to the activation effect of chloride ions in seawater, only a few metals (titanium, zirconium, niobium and tantalum) can be kept passivated in seawater, and the stability of non-metallic carbon in seawater is high.
Since the dissolved oxygen amount of seawater is low and the reduction overpotential of oxygen is high, a material which easily allows the reduction reaction of oxygen to proceed is required. The cathode reaction of the seawater cell is the reduction of oxygen: the equilibrium potential of the reaction is 0.45V under the conditions of the pH value of the seawater and the dissolved oxygen concentration. To get outThe potential for high operating potentials is typically reduced by using a catalyst to reduce the overpotential for the oxygen reduction reaction. The overpotential for oxygen reduction can be minimized, for example, by using the cathode catalytic technology of a fuel cell. In order to achieve the cathode of the seawater battery with the best comprehensive performance, the carbon plate is most favorable as a substrate, and the surface of the carbon plate is treated by a substance with the oxygen reduction catalysis effect. Because the dissolved concentration of oxygen in seawater is very low, the oxygen diffusion speed of the boundary layer on the surface of the cathode is limited, the working current density of the cathode is generally very low and is calculated as 0.1mA/cm theoretically2Therefore, it is necessary to use a cathode with a large area and make the seawater flow at the cathode to have a larger flow velocity, thereby increasing the transport rate of the dissolved oxygen.
The research of the invention proves that in order to improve the open-circuit potential and the current efficiency of the magnesium anode, the magnesium alloy component should select solid solution alloy with high electrode potential as much as possible, and add proper amount of manganese with low alloying as much as possible. The purity of the alloy is high, the impurity content of low hydrogen evolution overpotential is reduced as much as possible, no flux inclusion and low chloride ion residue are ensured, a high-purity smelting technology is adopted in the process, the casting quality requirement is improved, and the casting defects are reduced.
In addition, the self-corrosion of the magnesium alloy anode (1) is in direct proportion to the surface area of the electrode, and the overpotential of the magnesium alloy is not large, so the magnesium seawater battery adopts the minimum surface area, and generally adopts a round bar shape on the premise of ensuring the magnesium alloy quality required by the total capacity of the battery.
The magnesium seawater battery needs to be provided with a frame (4), the frame (4) is designed to enable the battery to keep a reasonable rigid structure, the battery equipment is convenient to assemble, the reliability is improved, and meanwhile, the frame (4) can promote seawater to have a larger flow velocity on the surface of a cathode so as to promote the diffusion of dissolved oxygen. The material of the frame (4) is selected to be resistant to seawater corrosion, and the material for deep sea applications should have the necessary compressive strength.
Drawings
The attached drawing of the magnesium seawater battery is a cross-sectional structural drawing, and the magnesium seawater battery consists of a magnesium alloy anode (1), a plurality of parallel inert cathodes (2), an electrolyte (3), a battery frame (4), electrode binding posts (5) and a net (6).
Detailed Description
The magnesium alloy anode (1) of the magnesium seawater battery can select low-alloying alloys containing a certain amount of manganese, such as magnesium, magnesium-manganese alloy, AZ21, AZ31, AM10A and the like, wherein the alloys are preferably high in purity and have strict limits on elements such as Fe, Co, Ni, Cu and the like which can be catalytically precipitated by hydrogen energy. The shape adopts a round bar, and the length of the round bar is approximately equal to that of the cathode. The magnesium alloy anode (1) can be produced by adopting a casting or extrusion method, and is provided with a steel core in the center, and the end part of the steel core extends out to be used as a battery negative terminal (5).
The inert cathode (2) of the magnesium seawater battery can adopt copper alloy, carbon steel, stainless steel and graphite, and the surface of the inert cathode (2) has better treatment effect by adopting substances with oxygen reduction catalysis. In order to prevent the attachment of microorganisms and marine organisms, the inert cathode (2) can continuously and slowly release substances which are toxic or irritant to the microorganisms and the marine organisms. Because the inert cathode (2) needs multiple functions, the traditional forms of copper alloy, carbon steel, stainless steel and graphite are difficult to completely meet the requirements, and composite materials are preferably adopted. The area of the inert cathode (2) is much larger than that of the anode, and a plurality of inert cathodes (2) are generally radially arranged around the magnesium alloy anode (1) as the center.
A battery frame (4) and a net (6) are arranged on the outer side of the magnesium alloy anode (1) and the inert cathode (2) which is radially arranged around the magnesium alloy anode, the battery frame (4) is opened up and down, a channel allowing ocean current to pass is arranged around the battery frame, a clamping groove of a carbon plate of the inert cathode (2) and a fixing beam for embedding and connecting a conductive copper wire of the inert cathode (2) and the magnesium alloy anode (1) are arranged on the battery frame (4). The battery frame (4) has high rigidity and seawater corrosion resistance, and the battery used in deep sea also needs to resist the high pressure of seawater, namely the material of the frame (4) has certain compressive strength. For repeated use, the frame (4) may be formed integrally from a glass fibre reinforced resin based composite material.
Best mode for carrying out the invention
A medium-sized magnesium seawater battery comprises a magnesium alloy anode (1), a plurality of parallel inert cathodes (2), an electrolyte (3), a battery frame (4), electrode binding posts (5) and a net (6). The main parameters are as follows: the power of 1-5W, the continuous use for 1-2 years, and the capacity of about 10-15 kilowatt-hours. Is suitable for use in the sea of 1000 m or more.
The magnesium alloy anode (1) of the magnesium seawater battery can select low-alloying alloys containing certain manganese, such as high-purity magnesium, magnesium-manganese alloy, AZ21, AZ31, AM10A and the like. The magnesium alloy is in the shape of a round rod, the diameter of the round rod is 12-15 cm, the length of the round rod is about 1m, and the weight of the magnesium alloy is 19-30 kg. Can be produced by casting or extrusion, and has a steel core in the center, and the end part of the steel core extends out to be used as an electrode binding post (5).
The inert cathode (2) of the magnesium seawater battery can adopt copper alloy, carbon steel, stainless steel and graphite, and the surface of the inert cathode (2) has better treatment effect by adopting substances with oxygen reduction catalysis. The components of the surface catalysis layer comprise a catalyst, a conductive agent, a bonding agent, an additive and a proper amount of solvent which are mixed and stirred into uniform catalysis wet material, and the uniform catalysis wet material is processed into the catalysis layer of the inert cathode (2) on the substrate of the inert cathode (2). In order to prevent the attachment ofmicroorganisms and marine organisms, capsaicin is used if environmental protection is required without pollution. The inert cathode (2) requires multiple functions, generally the traditional forms of copper alloy, carbon steel, stainless steel and graphite are difficult to meet, and composite materials or surface-coated composite materials based on the above materials are preferably adopted. The area of the inert cathode (2) is much larger than that of the magnesium alloy anode (1), and a plurality of inert cathodes (2) are generally radially arranged around the magnesium alloy anode (1).
The magnesium alloy anode comprises a magnesium alloy anode (1) and inert cathodes (2) radially arranged around the magnesium alloy anode, a battery frame (4) and a net (6) are arranged on the outer side of the magnesium alloy anode, the battery frame (4) is in a circular tube shape and is vertically open, channels allowing ocean currents to pass through are arranged around the battery frame, clamping grooves of carbon plates of the inert cathodes (2) are arranged on the battery frame (4), and conductive copper wires and anode fixing beams connected with the inert cathodes (2) are buried in the clamping grooves. The battery frame (4) has high rigidity and seawater corrosion resistance, and the battery used in deep sea also needs to resist the high pressure of seawater, namely the material of the battery frame (4) has certain compressive strength. For repeated use, the battery frame (4) is generally made of a glass fiber reinforced resin matrix composite material and integrally molded.
Claims (11)
1. Magnesium sea water battery, including an anode (1), a plurality of parallelly connected inert cathode (2), electrolyte (3), battery frame (4), electrode terminal (5), net (6), its characterized in that: the open type battery with the anode and the cathode as cores is directly immersed in seawater or sunk to the sea bottom to be used as an independent chemical power supply of marine equipment needing to work for a long time in the sea, and stable, reliable and low-cost electric energy is provided.
2. The magnesium seawater battery of claim 1, wherein: the anode (1) is magnesium alloy, can be dissolved in a corrosive way in the discharge process of the battery, and can be replaced after being consumed.
3. The magnesium seawater battery of claim 2, wherein: the magnesium alloy of the magnesium alloy anode (1) is high purity and low alloyed.
4. The magnesium seawater battery of claim 1, wherein: the magnesium alloy anode (1) is a cylinder with a current collecting steel core.
5. The magnesium seawater battery of claim 1, wherein: the inert cathode (2) is capable of reducing dissolved oxygen in seawater to the cathode active material of the cell, which is not itself consumed during operation.
6. The magnesium seawater battery of claim 5, wherein: the contact interface area of the inert cathode (2) and the seawater is as large as possible.
7. The magnesium seawater battery of claim 5, wherein: the inert cathode (2) contains a catalyst having a catalytic reduction function for dissolved oxygen in seawater.
8. The magnesium seawater battery of claim 5, wherein: the inert cathode (2) contains substances which prevent the attachment of microorganisms and marine organisms and which are released slowly and are effective for along period of time.
9. The magnesium seawater battery of claim 5, wherein: the inert cathode (2) can adopt copper alloy, carbon steel, stainless steel and graphite or composite materials taking the copper alloy, the carbon steel, the stainless steel and the graphite as matrixes.
10. The magnesium seawater battery of claim 1, wherein: the battery does not need to be provided with electrolyte, but uses the inexhaustible seawater as the electrolyte (3) of the battery.
11. The magnesium seawater battery of claim 1, wherein: the structure of the magnesium seawater battery is that a magnesium alloy anode (1) cylinder is taken as the center, a plurality of cathodes (2) are radially arranged at one side or the periphery of the magnesium alloy anode, the cathodes are connected in parallel in a sheet shape, and seawater flows between the cathodes and the anode as smoothly as possible; the cell has a frame (4) on which the cathode (2) and anode (1) are mounted, the frame allowing and promoting the flow of sea currents between the cathode and the anode, particularly at the cathode surface, to promote the rapid diffusion of dissolved oxygen in the sea water towards the cathode surface.
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| CNA2003101139511A CN1543001A (en) | 2003-11-06 | 2003-11-06 | Magnesium sea water battery |
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|---|---|---|---|
| CNA2003101139511A CN1543001A (en) | 2003-11-06 | 2003-11-06 | Magnesium sea water battery |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847727A (en) * | 2010-05-23 | 2010-09-29 | 钟明华 | Combined type sea water battery |
| CN101882685A (en) * | 2010-03-31 | 2010-11-10 | 孙公权 | Magnesium-oxygen battery for seawater underwater |
| CN101702438B (en) * | 2009-10-26 | 2011-06-01 | 黑龙江慧能绿色能源科技开发有限公司 | Aqueous medium battery and manufacture method thereof, life jacket GPS positioning device and alarm lamp device |
| CN102104183A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院大连化学物理研究所 | Automatic oxygen supply control device for underwater metal-oxygen battery system |
| CN102479961A (en) * | 2010-11-29 | 2012-05-30 | 中国科学院大连化学物理研究所 | Oxygen dissolving type seawater battery |
| CN102479987A (en) * | 2010-11-29 | 2012-05-30 | 中国科学院大连化学物理研究所 | Magnesium-oxygen battery used under seawater |
| WO2013017901A1 (en) | 2011-08-02 | 2013-02-07 | Imk Greenpower Kft. | System and method for producing electrical energy |
| CN103268948A (en) * | 2013-05-02 | 2013-08-28 | 南昌大学 | Liquid active magnesium-cuprous chloride paper battery and preparation method thereof |
| CN104852071A (en) * | 2014-02-18 | 2015-08-19 | 中国海洋大学 | Benthic microbial fuel cell (BMFC) device suitable for actual ocean usage |
| CN104852106A (en) * | 2014-02-18 | 2015-08-19 | 中国海洋大学 | Bottom sediment layer magnesium anode fuel cell real sea device |
| CN105489834A (en) * | 2015-11-26 | 2016-04-13 | 中国电子科技集团公司第十八研究所 | Magnesium seawater battery anode and manufacturing method |
| JP2017076595A (en) * | 2015-10-16 | 2017-04-20 | 台湾ナノカーボンテクノロジー股▲ふん▼有限公司 | Non-fixed type seawater battery |
| CN106702190A (en) * | 2015-07-16 | 2017-05-24 | 北京有色金属研究总院 | Preparation method of Mg-Hg intermediate alloy |
| CN108075147A (en) * | 2017-05-27 | 2018-05-25 | 深圳市水动力环保新能源有限公司 | A kind of water battery available for emergent charging |
| CN108461680A (en) * | 2018-03-26 | 2018-08-28 | 沈阳航天新光集团有限公司 | A kind of large modular seawater battery |
| CN108955764A (en) * | 2018-06-14 | 2018-12-07 | 中国海洋大学 | Deep-sea Geological Environment Engineering long-term observation system and method in real time in situ |
| KR20190142794A (en) * | 2018-06-18 | 2019-12-30 | 선광엘티아이(주) | Ultra capacity metal air fuel battery system and manufacturing methode thereof |
| CN113224337A (en) * | 2021-02-26 | 2021-08-06 | 青岛华高墨烯科技股份有限公司 | Graphene/cuprous chloride-magnesium flashing battery and preparation method thereof |
| CN117638331A (en) * | 2023-12-21 | 2024-03-01 | 浩航星源(烟台)科技有限公司 | Metal-air battery, metal-air battery assembly and buoy |
-
2003
- 2003-11-06 CN CNA2003101139511A patent/CN1543001A/en active Pending
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702438B (en) * | 2009-10-26 | 2011-06-01 | 黑龙江慧能绿色能源科技开发有限公司 | Aqueous medium battery and manufacture method thereof, life jacket GPS positioning device and alarm lamp device |
| CN102104183A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院大连化学物理研究所 | Automatic oxygen supply control device for underwater metal-oxygen battery system |
| CN102104183B (en) * | 2009-12-16 | 2013-03-27 | 中国科学院大连化学物理研究所 | Automatic oxygen supply control device for underwater metal-oxygen battery system |
| CN101882685B (en) * | 2010-03-31 | 2012-07-04 | 孙公权 | Magnesium-oxygen battery for seawater underwater |
| CN101882685A (en) * | 2010-03-31 | 2010-11-10 | 孙公权 | Magnesium-oxygen battery for seawater underwater |
| CN101847727B (en) * | 2010-05-23 | 2011-12-21 | 钟明华 | Combined type sea water battery |
| CN101847727A (en) * | 2010-05-23 | 2010-09-29 | 钟明华 | Combined type sea water battery |
| CN102479987A (en) * | 2010-11-29 | 2012-05-30 | 中国科学院大连化学物理研究所 | Magnesium-oxygen battery used under seawater |
| WO2012071707A1 (en) * | 2010-11-29 | 2012-06-07 | 中国科学院大连化学物理研究所 | Seawater battery of dissolved oxygen type |
| CN102479961A (en) * | 2010-11-29 | 2012-05-30 | 中国科学院大连化学物理研究所 | Oxygen dissolving type seawater battery |
| CN102479961B (en) * | 2010-11-29 | 2014-01-01 | 中国科学院大连化学物理研究所 | Oxygen dissolving type seawater battery |
| CN102479987B (en) * | 2010-11-29 | 2014-01-08 | 中国科学院大连化学物理研究所 | Magnesium-oxygen battery used under seawater |
| WO2013017901A1 (en) | 2011-08-02 | 2013-02-07 | Imk Greenpower Kft. | System and method for producing electrical energy |
| CN103268948A (en) * | 2013-05-02 | 2013-08-28 | 南昌大学 | Liquid active magnesium-cuprous chloride paper battery and preparation method thereof |
| CN104852071A (en) * | 2014-02-18 | 2015-08-19 | 中国海洋大学 | Benthic microbial fuel cell (BMFC) device suitable for actual ocean usage |
| CN104852106A (en) * | 2014-02-18 | 2015-08-19 | 中国海洋大学 | Bottom sediment layer magnesium anode fuel cell real sea device |
| CN106702190A (en) * | 2015-07-16 | 2017-05-24 | 北京有色金属研究总院 | Preparation method of Mg-Hg intermediate alloy |
| CN106702190B (en) * | 2015-07-16 | 2018-03-27 | 北京有色金属研究总院 | A kind of preparation method of Mg Hg intermediate alloys |
| JP2017076595A (en) * | 2015-10-16 | 2017-04-20 | 台湾ナノカーボンテクノロジー股▲ふん▼有限公司 | Non-fixed type seawater battery |
| CN105489834A (en) * | 2015-11-26 | 2016-04-13 | 中国电子科技集团公司第十八研究所 | Magnesium seawater battery anode and manufacturing method |
| CN108075147B (en) * | 2017-05-27 | 2024-04-09 | 深圳市水动力环保新能源有限公司 | Water battery capable of being used for emergency charging |
| CN108075147A (en) * | 2017-05-27 | 2018-05-25 | 深圳市水动力环保新能源有限公司 | A kind of water battery available for emergent charging |
| CN108461680A (en) * | 2018-03-26 | 2018-08-28 | 沈阳航天新光集团有限公司 | A kind of large modular seawater battery |
| CN108461680B (en) * | 2018-03-26 | 2024-07-05 | 沈阳航天新光集团有限公司 | Large-scale modularized seawater battery |
| CN108955764A (en) * | 2018-06-14 | 2018-12-07 | 中国海洋大学 | Deep-sea Geological Environment Engineering long-term observation system and method in real time in situ |
| CN108955764B (en) * | 2018-06-14 | 2021-02-09 | 中国海洋大学 | Deep sea engineering geological environment in-situ long-term real-time observation system and method |
| KR20190142794A (en) * | 2018-06-18 | 2019-12-30 | 선광엘티아이(주) | Ultra capacity metal air fuel battery system and manufacturing methode thereof |
| KR102615721B1 (en) * | 2018-06-18 | 2023-12-20 | 선광엘티아이(주) | Ultra capacity metal air fuel battery |
| CN113224337B (en) * | 2021-02-26 | 2022-07-19 | 青岛华高墨烯科技股份有限公司 | Graphene/cuprous chloride-magnesium flashing battery and preparation method thereof |
| CN113224337A (en) * | 2021-02-26 | 2021-08-06 | 青岛华高墨烯科技股份有限公司 | Graphene/cuprous chloride-magnesium flashing battery and preparation method thereof |
| CN117638331A (en) * | 2023-12-21 | 2024-03-01 | 浩航星源(烟台)科技有限公司 | Metal-air battery, metal-air battery assembly and buoy |
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