CN221928144U - A flooded battery for lifesaving equipment with an open water inlet - Google Patents

Abstract

The utility model belongs to the technical field of water life-saving equipment, and relates to a flashing battery of water inlet hole open type life-saving equipment, which comprises a shell, wherein an upper water inlet channel is arranged at the upper part of the shell, and upper water inlets are arranged at the left side and the right side of the upper water inlet channel; an electrode cavity is arranged in the middle of the shell, a single battery consisting of an anode, a cathode and an interelectrode diaphragm is arranged in the electrode cavity, and a layer of hydrolysis protection film is coated on the surface of the electrode; an electrode cavity upper water inlet hole is arranged between the upper water inlet channel and the electrode cavity; the lower part of the shell is provided with a lower water inlet channel; the flashing battery of the water inlet hole open type lifesaving equipment can be widely applied to power supplies of lifesaving equipment such as a water lifesaving position indicating lamp, a position indicating mark, a beacon, a personal water falling alarm positioning terminal and the like, is simple to operate, convenient and reliable to use, can quickly activate and supply power without manual operation when in emergency use, and is particularly suitable for untrained masses.

Description

A flooded battery for lifesaving equipment with an open water inlet

Technical field:

The utility model belongs to the technical field of aquatic lifesaving equipment, and relates to a flooding battery for lifesaving equipment which can be activated and powered without manual operation by immersing in water, and in particular to a flooding battery for lifesaving equipment with an open water inlet hole.

Background technology:

The flooding battery is a water-activated disposable battery belonging to the seawater battery series. Chinese patent CN202110337732.X discloses "A graphene/cuprous chloride-magnesium flooding battery and its preparation method". Flooding refers to a wide range of water, including fresh water and sea water; graphene/cuprous chloride-magnesium flooding battery, referred to as flooding battery, is a disposable battery that can be activated and powered in fresh water or sea water and is suitable for use in any scene of rivers, lakes and seas. The flooding battery uses a graphene/cuprous chloride composite with outstanding electrochemical functions to make a graphene chlorine-rich cathode, a modified magnesium alloy as an anode, and _H2O + ^Cl- as an electrolyte to constitute the battery reaction conditions, and its reaction mechanism is:

After the electrode cavity is filled with water, the graphene chlorine-rich cathode releases chloride ions (Cl ^- ) and dissolves into the water, i.e., an electrolyte (H ₂ O+Cl ^- ) with a chloride ion (Cl ^- ) content of ≥3.5% is generated; in the electrolyte (H ₂ O+Cl ^- ), the modified magnesium alloy anode loses electrons to generate magnesium ion (Mg ²⁺ ) charges, and after the graphene composite chlorine-rich cathode obtains the magnesium ion (Mg ^{2+ ) charges, it undergoes a catalytic reduction reaction with reactive species including magnesium ion (Mg 2+ )} charges and dissolved oxygen to generate electrons (e), which are then extracted through the graphene composite chlorine-rich cathode current collector to generate current; during the reaction process, graphene (rGO) intensifies the catalytic reduction reaction of reactive species and efficiently extracts electrons (e), so that the electrode reaction is always in an unsaturated state, thereby doubling the reactivity of the flooded battery and generating doubled electrical energy, with a specific energy of more than 375Wh/Kg.

Compared with seawater batteries, flooded batteries have higher specific energy, ≥375Wh/Kg; fast activation, <30s; wide application scenarios, any water area in rivers, lakes and seas. Compared with lithium batteries, flooded batteries have better safety, no harmful substances spill, no explosion hazards; good weather resistance, especially low-temperature discharge performance is basically unaffected by ambient temperature; low capacity attenuation rate, <1%/year; outstanding reliability, can ensure the effective operation of life-saving equipment at any time during the 5-year energy storage period; long energy storage time, 5 years maintenance-free and other technical advantages, flooded batteries are widely used in life-saving equipment such as ships, aviation and offshore platforms. Like seawater batteries, flooded batteries must be blocked and sealed during storage and standby to isolate the electrode cavity from the atmosphere and avoid electrode oxidation to form a passivation film, which leads to slow or inability to activate the battery, especially in a humid atmospheric environment, where the electrode will absorb moisture to activate the discharge and cause battery failure. Therefore, the flooding battery used in the existing life-saving equipment includes a seawater battery, and its water inlet holes are closed by an upper plug and a lower plug. When the life-saving equipment is used, it is necessary to manually open the upper plug and the lower plug respectively, and then immerse the battery as a whole in water to activate the power supply. Such cumbersome operations bring great inconvenience to the users of the life-saving equipment. In serious cases, it may cause fatal consequences. Take the life jacket position indicator light or personal drowning alarm positioning device powered by a flooding battery or a seawater battery as an example. In the panic environment of a ship or plane crash, the spirit and psychology of the distressed person will be abnormally impacted. When the distressed person is wearing a life jacket, how many people will think of opening the upper plug and the lower plug of the flooding battery or the seawater battery first? How many people can successfully complete this seemingly simple operation? In particular, it is even more difficult for the untrained distressed masses to do it. In the past lessons of marine accidents, even trained personnel cannot do it 100%, resulting in the inability to start the drowning person position indicator or alarm device, which greatly reduces the probability of being rescued. In order to ensure that life-saving equipment powered by flooded batteries can be reliably activated and powered without manual operation after being immersed in water when a shipwreck occurs, people have made a lot of efforts in the control technology of the water inlet hole of the flooded battery. Some attempts have been made to use hydrosol films or springs to block and seal the water inlet holes, but they cannot be used in practice due to poor weather resistance and reliability. In order to improve the convenience and effectiveness of flooded batteries in the use of life-saving equipment, the electrode protection method is sought to design a flooded battery that does not require a sealed water inlet hole.

Utility model content:

The purpose of the utility model is to overcome the defects of the prior art and provide a flooded battery for life-saving equipment with an open water inlet, thereby eliminating the blockage of the battery water inlet. A layer of hydrolysis protection film is arranged on the surface of the electrode to protect the electrode from being oxidized by air or absorbing moisture, and the electrode can be quickly hydrolyzed in water to activate the battery.

In order to achieve the above-mentioned purpose, the utility model provides a flooding battery for life-saving equipment with an open water inlet, the overall structure of which includes: a shell, an upper water inlet channel, an output wire, a jumper wire, an upper water inlet hole, a water resistance plate, an electrode cavity, an electrode, an electrode cavity partition wall, a hydrolysis protection membrane, an inter-polar separation membrane, a lower water inlet channel, a lower water inlet hole, a lower water inlet hole of the electrode cavity and an upper water inlet hole of the electrode cavity; the electrode includes an anode and a cathode; an upper water inlet channel is provided at the upper part of the shell, and upper water inlets are provided on the left and right sides of the upper water inlet channel; an electrode cavity is provided in the middle part of the shell, and a single cell consisting of an anode, a cathode and an inter-polar separation membrane arranged between the anode and the cathode is installed in the electrode cavity, and a layer of hydrolysis protection membrane is coated on the surface of the electrode; an upper water inlet hole of the electrode cavity is provided between the upper water inlet channel and the electrode cavity; a lower water inlet channel is provided at the lower part of the shell, and a lower water inlet hole is provided at the bottom of the lower water inlet channel; a lower water inlet hole of the electrode cavity is provided between the lower water inlet channel and the electrode cavity.

The upper water inlet channel is also a wire cavity, which is provided with a jumper wire and an output wire. After the jumper wire connects the cathode and the anode in parallel or in series, it is merged into the positive and negative output wires. The output wire passes through the wire hole on the top of the shell and extends to the outside of the shell.

A water resistance plate is also provided in the upper water inlet channel near the upper water inlet hole.

The hydrolysis protective film involved is a graphene/silicone copolymer film, or other membrane materials that can block air and moisture and can hydrolyze quickly when exposed to water.

There are one or more electrode cavities. When there are more than one electrode cavities, electrode cavity partition walls are arranged between adjacent electrode cavities.

Compared with the prior art, the utility model has a flooded battery for life-saving equipment with an open water inlet, which overcomes the defects of the prior flooded battery that the water inlet is blocked and sealed, which is cumbersome to operate and inconvenient to use. The battery electrode is protected by a hydrolysis protective film. In a water-free state, the hydrolysis protective film can effectively block the air to protect the electrode from being oxidized or activated by moisture absorption. When it encounters water, the hydrolysis protective film can be quickly hydrolyzed, so that the electrode can quickly contact the water body to achieve the purpose of activating the battery. The battery water inlet channel adopts a tortuous (non-straight-through) design, which can effectively improve the battery's anti-splashing performance under the condition of an open water inlet. The battery was subjected to high humidity environmental impact and water activation tests respectively. Under the conditions of the electrode cavity being open to the atmosphere, the ambient temperature being 35°C, and the humidity being 95%, a high humidity impact test lasting 15 days was carried out, and the battery had no activation phenomenon, and the hydrolysis protective film showed good air barrier performance. The battery can be activated in less than 1 minute in seawater with a pH of 7.5 to 7.8 and a salinity of 2.5%, and in less than 5 minutes in natural river water with a pH of 7.4. The water activation time fully meets the requirements of the current standards. The flooded battery for life-saving equipment with open water inlet can be widely used as a power supply for life-saving equipment such as water life-saving position lights, position markers, beacons and personal drowning alarm positioning terminals. It is simple to operate, convenient and reliable to use. No manual operation is required in emergency use. The battery can be quickly activated and powered when immersed in water. It is especially suitable for use by untrained general public.

Description of the drawings:

FIG1 is a schematic diagram of the overall structural principle of a flooding battery of a lifesaving device with an open water inlet hole according to the present invention.

Specific implementation method:

The present invention will be further described below through embodiments and in conjunction with the accompanying drawings.

Embodiment 1:

The present embodiment relates to a flooded battery for life-saving equipment with an open water inlet, the overall structure of which includes: a shell 1, an upper water inlet channel 2, an output wire 3, a jumper wire 4, an upper water inlet hole 5, a water resistance plate 6, an anode 7, an electrode cavity 8, a cathode 9, an electrode cavity partition wall 10, a hydrolysis protection membrane 11, an electrode interval membrane 12, a lower water inlet channel 13, a lower water inlet hole 14, an electrode cavity lower water inlet hole 15 and an electrode cavity upper water inlet hole 16. An upper water inlet channel 2 is provided at the upper part of the shell, and upper water inlets 5 are provided on the left and right sides of the upper water inlet channel 2; an electrode cavity 8 is provided at the middle part of the shell, and there are two electrode cavities 8 in this embodiment, and an electrode cavity partition wall 10 is provided between the two electrode cavities 8, and a single cell consisting of an anode 7, a cathode 9 and an electrode separation membrane 12 arranged between the anode 7 and the cathode 9 is installed in each electrode cavity 8, and a layer of hydrolysis protection film 11 is coated on the surface of the anode 7 and the cathode 9; an electrode cavity upper water inlet hole 16 is provided between the upper water inlet channel 2 and the electrode cavity 8; a lower water inlet channel 13 is provided at the lower part of the shell, and a lower water inlet hole 14 is provided at the bottom of the lower water inlet channel 13; an electrode cavity lower water inlet hole 15 is provided between the lower water inlet channel 13 and the electrode cavity 8.

The upper water inlet channel 2 is also a wire cavity, which is provided with a jumper wire 4 and an output wire 3. The jumper wire 4 connects the anode 7 and the cathode 9 in parallel or in series, and then merges into the positive and negative output wires 3. The output wire 3 passes through the wire hole on the top of the shell and extends to the outside of the shell.

A water resistance plate 6 is also provided in the upper water inlet channel 2 near the upper water inlet hole 5 to prevent splashing water from directly entering the electrode cavity 8, while ensuring that the battery as a whole can be immersed in water smoothly. The battery water inlet channel adopts a tortuous (non-straight-through) design, which can effectively improve the battery's anti-splashing performance when the upper water inlet hole is open.

The hydrolysis protection film 11 is a graphene/silicone copolymer film, which is obtained by blending graphene oxide and silica gel in a ceramic blending kettle with shearing function through the existing room temperature and pressure blending method, coating the copolymer on the electrode surface, and drying to obtain the hydrolysis protection film.

The housing 1 is made of high-strength ABS (acrylonitrile/butadiene/styrene copolymer board) material which is acid-resistant, oil-resistant and has good dielectric properties by injection molding.

The electrode cavity 8 may be single or multiple, and the number of electrode cavities is set according to the required voltage and current (power).

The battery lower water inlet channel 13 and upper water inlet channel 2 adopt a tortuous (non-straight) design. Water can enter the lower water inlet channel 13 through the lower water inlet hole 14 before entering the two (or more) electrode cavities 8 through the electrode cavity lower water inlet hole 15.

Embodiment 2:

The flooding battery of the life-saving equipment with an open water inlet described in Example 1 was subjected to high humidity environmental shock and water activation tests. Under the conditions of the electrode cavity being open to the atmosphere, the ambient temperature being 35°C, and the humidity being 95%, a high humidity shock test lasting 15 days was conducted, and the battery showed no activation phenomenon, and the hydrolysis protective film showed good air barrier performance; the battery can be activated in less than 1 minute in seawater with a pH of 7.5-7.8 and a salinity of 2.5%; the battery can be activated in less than 5 minutes in natural river water with a pH of 7.4; the water activation time tested above fully meets the requirements of current standards. The flooding battery of the life-saving equipment with an open water inlet can be widely used as a power supply for life-saving equipment such as aquatic life-saving position lights, position markers, beacons, and personal drowning alarm positioning terminals.

Claims (5)

1. The utility model provides a water inlet hole open-type life-saving equipment flashing battery which characterized in that, overall structure includes: the electrode comprises a shell, an upper water inlet channel, an output wire, a bridging wire, an upper water inlet hole, an electrode cavity, an electrode, an interelectrode diaphragm, a hydrolysis protection film, a lower water inlet channel, a lower water inlet hole of the electrode cavity and an upper water inlet hole of the electrode cavity; the electrode comprises an anode and a cathode; an upper water inlet channel is arranged at the upper part of the shell, and upper water inlets are arranged at the left side and the right side of the upper water inlet channel; an electrode cavity is arranged in the middle of the shell, a single battery consisting of an anode, a cathode and an interelectrode diaphragm arranged between the anode and the cathode is arranged in the electrode cavity, and a layer of hydrolysis protection film is coated on the surface of the electrode; an electrode cavity upper water inlet hole is arranged between the upper water inlet channel and the electrode cavity; the lower part of the shell is provided with a lower water inlet channel, and the bottom of the lower water inlet channel is provided with a lower water inlet hole; an electrode cavity lower water inlet hole is arranged between the lower water inlet channel and the electrode cavity.

2. The water flooding battery of the water inlet hole open type life saving equipment according to claim 1, wherein a bridging wire and an output wire are arranged in the upper water inlet channel, the bridging wire is integrated into the output wire after connecting the cathode and the anode, and the output wire extends out of the shell through a wire hole at the top of the shell.

3. The water flooding battery of the water inlet hole open type life saving equipment according to claim 1, wherein a water resistance plate is further arranged in the upper water inlet channel at a position close to the upper water inlet hole.

4. The water inlet hole open type life saving equipment flashing battery according to claim 1, wherein the hydrolysis protection film is a graphene/silica gel copolymer film.

5. The water flooding battery of the water inlet hole open type life saving equipment according to claim 1, wherein the number of the electrode cavities is 1 or more, and when the number of the electrode cavities is more than one, the electrode cavity partition wall is arranged between the adjacent electrode cavities.