CN116995783B - Battery discharging device and battery discharging control method - Google Patents
Battery discharging device and battery discharging control method Download PDFInfo
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- CN116995783B CN116995783B CN202311236883.1A CN202311236883A CN116995783B CN 116995783 B CN116995783 B CN 116995783B CN 202311236883 A CN202311236883 A CN 202311236883A CN 116995783 B CN116995783 B CN 116995783B
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- 238000007599 discharging Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 106
- 238000003825 pressing Methods 0.000 claims abstract description 74
- 238000000926 separation method Methods 0.000 claims abstract description 54
- 238000004891 communication Methods 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims description 47
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000012267 brine Substances 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010926 waste battery Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/448—End of discharge regulating measures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The present application relates to a battery discharging apparatus and a battery discharging control method. A battery discharging device and a battery discharging control method are provided, wherein discharging particles are placed in a discharging cavity of a discharging body. The separation assembly separates the discharge cavity into a plurality of discharge spaces, and each material pressing assembly can perform pressure discharge on discharge particles in the corresponding discharge space. When the partial discharge rate is too fast or too slow, the pressure-relief assembly in the discharge space with fast discharge rate is controlled to release pressure, a certain accommodating space is formed, the pressure-relief assembly in the discharge space with slow discharge rate is controlled to pressurize, so that the discharge particles in the discharge space with slow discharge rate circulate into the discharge space with fast discharge rate through the communication channel on the separation assembly, the discharge rate of the discharge space with slow discharge rate is quickened, the discharge rate of the discharge space with fast discharge rate is reduced, the overall discharge rate of the battery discharge device is more balanced, and the overall discharge efficiency is further improved.
Description
Technical Field
The present disclosure relates to the field of battery recycling technologies, and in particular, to a battery discharging device and a battery discharging control method.
Background
With the development of energy technology, waste battery recycling technology is developed. The traditional recovery and discharge of the waste lithium battery mainly adopts a discharge instrument discharge and brine discharge mode. The discharge by adopting the discharge instrument is high in cost and is not suitable for large-scale application. The brine discharge can be performed in large scale, but the battery is easy to corrode, and a large amount of hydrogen, chlorine and the like can be generated in the brine discharge process, so that the brine is harmful to the environment. Therefore, in the related art, the waste batteries are discharged by using the discharge particles, so that the residual energy of the batteries is released in the form of heat.
However, in the case of discharging by the discharge particles, it is a common practice to mix the discharge particles with the battery and then pressurize the mixed battery and discharge particles, thereby achieving the purpose of discharging the battery by the discharge particles. Because the battery is mixed with the discharge particles, the discharge is often realized in a uniform pressurizing mode in the process of controlling the discharge, and the problem of nonuniform discharge can be caused, so that the overall discharge efficiency of the battery is affected.
Disclosure of Invention
In view of the above, it is necessary to provide a battery discharge device and a battery discharge control method that can improve the uniformity of discharge of batteries at each position and ensure the overall discharge efficiency.
The battery discharging device comprises a discharging body, a separation assembly and a pressing assembly, wherein a discharging cavity is formed on the discharging body and used for accommodating discharging particles, and a pressing opening is formed on one side of the discharging cavity; the separation assembly can be arranged in the discharge cavity, the separation assembly is used for separating the discharge cavity into a plurality of discharge spaces, communication channels which are communicated with the discharge spaces at two sides of the separation assembly can be formed on the separation assembly, and the communication channels are used for the discharge particles to pass through; the quantity of the material pressing components is consistent with that of the discharge spaces, each material pressing component can be penetrated into the corresponding discharge space through the material pressing opening, and the material pressing components are used for applying pressure to the corresponding discharge space.
In one embodiment, the separation assembly includes a plurality of separation plates, the separation plates are arranged in the discharge cavity at intervals, the discharge cavity is separated into a plurality of discharge spaces by the plurality of separation plates, and each separation plate can be provided with a communication channel for communicating the discharge spaces on two opposite sides of the separation plate.
In one embodiment, each partition plate is formed with a plurality of communication channels, the communication channels are strip-shaped holes, the strip-shaped holes are arranged at intervals, and the width dimension of the strip-shaped holes is larger than the diameter of the discharge particles.
In one embodiment, the separation assembly further includes a plurality of lifting driving members, each of the lifting driving members is used for correspondingly driving one of the separation plates to be telescopically inserted into the discharge cavity, the lifting driving members can drive the separation plates to be arranged at intervals with the inner wall of the discharge cavity, and the intervals between the separation plates and the inner wall of the discharge cavity form the communication channels.
In one embodiment, two opposite sides of the partition plate are respectively provided with a filter screen, one side edge of each filter screen is connected to the inner wall of the discharge cavity, the other side edge of each filter screen is in contact with the plate surface of the partition plate, a communication channel is formed between the two filter screens, and the lifting driving piece is used for driving the partition plate to lift and move between the two filter screens.
In one embodiment, a separation slot is formed on the inner wall of the discharge chamber, the separation slot is located between the two filter screens, the width dimension of the side edge of the separation plate facing the separation slot tends to decrease along the direction facing the separation slot, and the side edge of the separation plate can be inserted into the separation slot.
In one embodiment, the pressing assembly comprises a pressing plate and a pressing driving piece, the pressing plate is penetrated in the corresponding discharge space by the pressing opening, the pressing driving piece is used for driving the pressing plate to stretch and retract in the discharge space, and the outer edge of the pressing plate is in contact with the plate surface of the separation plate.
In one embodiment, the battery discharging device further comprises a discharging electrode piece and a battery bearing piece, the battery bearing piece is located on one side of the discharging body, a bearing space is formed in the battery bearing piece and used for placing a battery, an electrode hole is formed in a connection position of the battery bearing piece and the discharging body, the electrode hole penetrates through the discharging cavity from the bearing space, and the discharging electrode piece penetrates through the electrode hole.
In one embodiment, the discharge electrode member includes a discharge portion and an electrode portion connected to the discharge portion, the electrode portion is disposed in the electrode hole in a penetrating manner and is connected to a pole of the battery, the discharge portion is disposed in the discharge cavity in a penetrating manner, a surface of the discharge portion facing the discharge cavity is a spherical cap surface, a plurality of particle accommodating grooves disposed at intervals are formed in the spherical cap surface, and the particle accommodating grooves can accommodate charged particles.
When the battery discharging device is used, the discharging particles for discharging are placed in the discharging cavity of the discharging body, and the battery can be placed in the discharging cavity to be mixed with the discharging particles or be electrically connected with the discharging particles in the discharging cavity through the electric connection device. The separation component separates the discharge cavity into a plurality of discharge spaces, and each pressing component can pressurize discharge particles in the corresponding discharge space and control a battery in the discharge space to discharge. When the partial discharge rate is too fast or too slow, the pressure relief of the pressure material component in the discharge space with fast discharge rate can be controlled, a certain accommodating space is vacated, the pressure material component in the discharge space with slow discharge rate is controlled to be pressurized, so that the discharge particles in the discharge space with slow discharge rate circulate into the discharge space with fast discharge rate through the communication channel on the separation component, the discharge rate of the discharge space with slow discharge rate is further accelerated, the discharge rate of the discharge space with fast discharge rate is reduced, the overall discharge rate of the battery discharge device is more balanced, and the overall discharge efficiency is further improved. The battery discharging device not only can realize independent voltage regulation control of the discharging rate of each discharging space, but also can realize circulation and transfer of discharging particles among the discharging spaces, can achieve the purpose of further regulating the discharging rate, improves the uniformity of the discharging rate of the battery in each discharging space, and further ensures the overall discharging efficiency.
A battery discharge control method applied in the battery discharge apparatus as described above, comprising:
acquiring the current discharge temperature of each discharge space;
comparing the temperature difference of the current discharge temperatures of the adjacent discharge spaces;
and if the temperature difference of the current discharge temperatures of the adjacent discharge spaces is larger than a preset difference, controlling the material pressing assembly in the discharge space with relatively low temperature to press, and controlling the material pressing assembly in the discharge space with relatively high temperature to release pressure so that the discharge particles move from the discharge space with relatively low temperature to the discharge space with relatively high temperature through the communication channel.
According to the battery discharge control method, the discharge particles for discharging are placed in the discharge cavity of the discharge body, and the battery can be placed in the discharge cavity or electrically connected with the discharge particles in the discharge cavity through the electric connection device. Then obtaining the current discharge temperature of each discharge space; comparing the temperature difference of the current discharge temperatures of the adjacent discharge spaces; if the temperature difference of the current discharge temperatures of the adjacent discharge spaces is larger than the preset difference, controlling the material pressing assembly in the discharge space with relatively low temperature to press, and controlling the material pressing assembly in the discharge space with relatively high temperature to release pressure and make a certain accommodating space, so that the discharge particles move from the discharge space with relatively low temperature to the discharge space with relatively high temperature through the communication channel. The number of discharge particles in the discharge space with slow discharge rate is reduced, so that the discharge rate can be properly accelerated, and the number of discharge particles in the discharge space with fast discharge rate is increased, so that the discharge rate can be properly reduced, so that the overall discharge rate of the battery discharge device is more balanced, and the overall discharge efficiency is improved. By the battery discharge control method, not only can the individual voltage regulation control discharge rate of each discharge space be realized, but also the circulation transfer of discharge particles among each discharge space can be realized, the purpose of further regulating the discharge rate can be achieved, the uniformity of the discharge rate of the battery in each discharge space is improved, and the overall discharge efficiency is further ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale. In the drawings:
fig. 1 is a front view of a battery discharging apparatus in an initial state in an embodiment.
Fig. 2 is a front view of the battery discharging apparatus shown in fig. 1 after discharge adjustment.
Fig. 3 is a schematic view of the partition plate in fig. 2.
Fig. 4 is a side view of the divider plate shown in fig. 3.
Fig. 5 is a front view of the discharge electrode of fig. 2.
Fig. 6 is a plan view of the discharge electrode shown in fig. 5.
Fig. 7 is a cross-sectional view of the discharge electrode shown in fig. 5.
Fig. 8 is a schematic view of the structure of the discharge electrode shown in fig. 5 in the discharge hole.
Fig. 9 is a flowchart of a battery discharge control method in an embodiment.
Reference numerals illustrate:
10. a battery discharging device; 100. a discharge body; 110. a discharge chamber; 120. a material pressing port; 130. a discharge space; 200. a partition assembly; 210. a communication passage; 220. a partition plate; 300. a pressing assembly; 310. a pressing plate; 320. a pressing driving piece; 400. a discharge electrode member; 410. a discharge section; 420. an electrode section; 430. spherical cap surface; 440. a particle accommodation groove; 450. a pole receiving hole; 460. an electrode spring plate; 500. a battery carrier; 510. a carrying space;
20. discharging particles; 30. and a battery.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, a battery discharging apparatus 10 according to an embodiment of the present application can at least achieve flexible adjustment of a discharging rate. Specifically, the battery discharging device 10 includes a discharging body 100, a separating component 200 and a pressing component 300, a discharging cavity 110 is formed on the discharging body 100, the discharging cavity 110 is used for accommodating the discharging particles 20, and a pressing opening 120 is formed at one side of the discharging cavity 110; the partition assembly 200 can be disposed in the discharge chamber 110, the partition assembly 200 is used for partitioning the discharge chamber 110 into a plurality of discharge spaces 130, and a communication channel 210 communicating the discharge spaces 130 on both sides of the partition assembly 200 can be formed on the partition assembly 200, the communication channel 210 being used for the discharge particles 20 to pass through; the number of the pressing assemblies 300 is consistent with the number of the discharge spaces 130, each pressing assembly 300 can be penetrated into the corresponding discharge space 130 by the pressing opening 120, and the pressing assemblies 300 are used for applying pressure to the corresponding discharge space 130.
Referring to fig. 3 and 4 together, in use, the discharge particles 20 for discharge are placed in the discharge chamber 110 of the discharge body 100, and in this embodiment, the battery 30 is also placed in the discharge chamber 110 to be mixed with the discharge particles 20. The separation assembly 200 separates the discharge chamber 110 into a plurality of discharge spaces 130, and each of the pressing assemblies 300 is capable of pressurizing the discharge particles 20 in the corresponding discharge space 130 to control the battery 30 in the discharge space 130 to discharge. When the partial discharge rate is too fast or too slow, the pressure relief of the pressure material assembly 300 in the discharge space 130 with fast discharge rate can be controlled, a certain accommodating space is vacated, the pressure material assembly 300 in the discharge space 130 with slow discharge rate is controlled to pressurize, so that the discharge particles 20 in the discharge space 130 with slow discharge rate circulate into the discharge space 130 with fast discharge rate through the communication channel 210 on the separation assembly 200, and then the discharge rate of the discharge space 130 with slow discharge rate is accelerated, and the discharge rate of the discharge space 130 with fast discharge rate is reduced, so that the overall discharge rate of the battery discharge device 10 is more balanced, and the overall discharge efficiency is improved.
If the discharging efficiency of a part of the batteries 30 is high and the discharging efficiency of a part of the batteries 30 is low, in the batch process, after the discharging of the batteries 30 with high discharging efficiency is completed, the batch recovery process can be performed on the batch of batteries 30 only after the discharging of the batteries 30 with low discharging efficiency is completed, and further the discharging efficiency of the whole batteries 30 is affected, and the area where the batteries 30 with high discharging efficiency are located is also prone to generate high temperature and cause safety problems. The above-mentioned battery discharging device 10 not only can realize the independent voltage regulation of each discharging space 130 to control the discharging rate, but also can realize the circulation transfer of the discharging particles 20 between each discharging space 130, can achieve the purpose of further regulating the discharging rate, improves the uniformity of the discharging rate of the battery 30 in each discharging space 130, further ensures the overall discharging efficiency, and avoids the problem of overhigh partial discharging temperature.
In the process of discharging by using the discharge particles 20, there is a potential difference between the positive electrode and the negative electrode of the discharge cell 30, electrons flow from the negative electrode with a low potential to the positive electrode with a high potential, the electron flow path is a load resistor composed of the discharge particles 20, and the discharging process is to convert the electric energy of the cell 30 into the heat energy of the load resistor. The load resistance comprises two components: the sum of the resistances of the discharge particles 20 themselves, and the sum of the contact resistances between the discharge particles 20. One way to adjust the discharge rate is by adjusting the number of discharge particles 20 to achieve an adjustment in the resistance produced by the discharge particles 20. The number of discharge particles 20 around the discharge cell 30 has an effect on the total resistance of the load resistance, namely: the greater the number of discharge particles 20 on the conductive path during discharge of the battery 30, the greater the value of the sum of the resistances and the sum of the contact resistances of the superimposed discharge particles 20 themselves, and the slower the discharge speed.
The battery discharging device 10 in the application can realize the circulation of the discharging particles 20 among the discharging spaces 130, further realize the purpose of adjusting the quantity of the discharging particles 20 in the discharging spaces 130, and realize the purpose of adjusting the discharging rate of the battery 30 in the discharging spaces 130 by adjusting the quantity of the discharging particles 20.
Another way to adjust the discharge rate during discharge with the discharge particles 20 is by adjusting the pressure. The contact resistance between the discharge particles 20 can be adjusted by the pressure control so that the greater the pressure applied to the discharge particles 20, the smaller the contact resistance, which in turn causes the faster the discharge rate of the battery 30 and the corresponding greater the amount of heat released. The adjustment mode of the battery discharging device 10 is not limited by pressure adjustment, and is not limited by the material bearing force, so that the application range is wider. In this embodiment, since the material pressing assembly 300 is correspondingly disposed in each of the discharge spaces 130, the pressure applied to the discharge space 130 by the material pressing assembly 300 in each of the discharge spaces 130 can be controlled independently, so as to achieve the purpose of regulating the discharge rate by the pressure.
Referring to fig. 1 and 2, in an embodiment, the pressing assembly 300 includes a pressing plate 310 and a pressing driving member 320, the pressing plate 310 is disposed in the corresponding discharge space 130 through the pressing opening 120, and the pressing driving member 320 is used for driving the pressing plate 310 to stretch in the discharge space 130. The discharge particles 20 in the discharge space 130 can be uniformly pressurized by the pressing plate 310, and the pressing driver 320 can power the telescopic movement of the pressing plate 310.
In this embodiment, the pressing driving member 320 may be an air cylinder, an electric push rod, a hydraulic rod, or the like, which can implement a telescopic moving mechanism of the pressing plate 310.
Referring to fig. 2 to 4, in an embodiment, the separation assembly 200 includes a plurality of separation plates 220, the plurality of separation plates 220 are disposed in the discharge chamber 110 at intervals, the plurality of separation plates 220 divide the discharge chamber 110 into a plurality of discharge spaces 130, and each separation plate 220 can form a communication channel 210 for communicating the discharge spaces 130 on opposite sides of the separation plate 220. By providing a plurality of partition plates 220, the space within the discharge chamber 110 can be effectively partitioned, thereby forming a plurality of stably partitioned discharge spaces 130.
In the present embodiment, the outer edge of the pressing plate 310 contacts the plate surface of the separation plate 220. When the pressing driving member 320 drives the pressing plate 310 to move in a telescopic manner, the pressing plate 310 can move along the plate surface of the partition plate 220, so as to avoid leakage of the discharge particles 20 in the discharge space 130 and ensure the reliability of pressing the discharge particles 20.
As shown in fig. 3 and 4, in one embodiment, a plurality of communication channels 210 are formed on each partition plate 220, the communication channels 210 are bar-shaped holes, and the plurality of bar-shaped holes are arranged at intervals, and the width dimension of the bar-shaped holes is larger than the diameter of the discharge particles 20. By directly forming the bar-shaped hole-shaped communication channel 210 on the partition plate 220, when the discharge space 130 on one side of the partition plate 220 has a receiving space and the material pressing assembly 300 of the discharge space 130 on the other side is pressurized, the discharge particles 20 on the other side can be pushed into the discharge space 130 on one side through the communication channel 210. And by arranging the communication channels 210 in the shape of a bar hole, the circulation efficiency of the discharge particles 20 can be improved, the possibility that the discharge particles 20 block the communication channels 210 is reduced, and the battery 30 in the discharge space 130 is prevented from passing through the communication channels 210.
In other embodiments, the communication channel 210 may also be a hole structure with a round hole, an oval hole, or other shapes.
In another embodiment, the separation assembly 200 further includes a plurality of lifting driving members, each of which is used for correspondingly driving a separation plate 220 to be telescopically inserted into the discharge chamber 110, wherein the lifting driving members can drive the separation plate 220 to be spaced from the inner wall of the discharge chamber 110, and the space between the separation plate 220 and the inner wall of the discharge chamber 110 is formed as a communication channel 210. When the discharge particles 20 do not need to circulate, the lifting driving member drives the partition plate 220 to abut against the inner wall of the discharge chamber 110, so as to avoid the circulation of the discharge particles 20. When the discharge particles 20 are required to flow, the elevation driving member drives the partition plate 220 to move so that a space is formed between the partition plate 220 and the inner wall of the discharge chamber 110, the space being formed as the communication passage 210 through which the discharge particles 20 can flow.
Specifically, the opposite sides of the partition plate 220 are provided with filter screens, one side of each filter screen is connected to the inner wall of the discharge cavity 110, the other side of each filter screen contacts with the plate surface of the partition plate 220, a communication channel 210 is formed between the two filter screens, and the lifting driving member is used for driving the partition plate 220 to lift and move between the two filter screens. By providing the filter screen, the battery 30 in the discharge space 130 can be prevented from passing through, and the reliability and stability of the circulation of the discharge particles 20 through the communication channel 210 can be ensured.
In one embodiment, a separation slot is formed on the inner wall of the discharge chamber 110, the separation slot is located between the two filter screens, and the side edge of the separation plate 220 can be inserted into the separation slot. Since the lifting driving member can drive the partition plate 220 to move in the discharge chamber 110 in a telescopic manner, when the partition plate 220 completely separates the discharge chamber 110, the partition plate 220 can be inserted into the separation slot, the reliability of the partition plate 220 in the discharge chamber 110 is improved, and the partition plate 220 is not offset due to different pressures in the discharge spaces 130 at two sides of the partition plate 220. Specifically, the width dimension of the partition plate 220 toward the side of the partition slot tends to decrease in the direction toward the partition slot, thereby facilitating insertion of the partition plate 220 between the discharge particles 20, and achieving separation of the discharge cells 110.
Referring to fig. 1 and 2, in another embodiment, the battery 30 may not be disposed in the discharge chamber 110, and the battery 30 is electrically connected to the discharge particles 20 in the discharge chamber 110 through other electrical connection devices.
Specifically, the battery discharging device 10 further includes a discharging electrode member 400 and a battery carrier 500, the battery carrier 500 is located at one side of the discharging body 100, a carrying space 510 is formed on the battery carrier 500, the carrying space 510 is used for placing the battery 30, an electrode hole is formed at a connection position between the battery carrier 500 and the discharging body 100, the electrode hole penetrates through the discharging cavity 110 from the carrying space 510, and the discharging electrode member 400 penetrates through the electrode hole. In use, the discharge particles 20 are disposed in the discharge chamber 110, the battery 30 is accommodated in the carrying space 510, and the battery 30 is connected to the discharge electrode member 400, so that the discharge electrode member 400 is electrically connected to the discharge particles 20 in the discharge chamber 110, thereby discharging the battery 30.
In this embodiment, the battery 30 is separated from the discharge particles 20, and the temperature of the discharge particles 20 is raised faster during discharging, so that the temperature of the discharge particles 20 is not directly transferred to the battery 30 through the battery carrier 500, and the safety of the battery 30 is not affected. Meanwhile, the battery 30 is separated from the discharge particles 20, so that the battery 30 is not required to be considered when the discharge particles 20 are subjected to cooling treatment, the discharge particles 20 can be fully cooled, and the cooling efficiency is greatly improved.
In this embodiment, the discharge body 100 and the battery carrier 500 share a connection spacer, one side of the connection spacer is a carrying space 510, the opposite side of the connection spacer is a discharge chamber 110, and the electrode holes are formed in the connection spacer. The structure of the battery discharging apparatus 10 is made simpler by providing the connection spacer.
In other embodiments, the battery carrier 500 may also be a separate structure, such as being attachable to the discharge body 100 or detachable from the discharge body 100. Electrode holes are formed in the discharging body 100 and the battery bearing piece 500, and after the discharging body 100 is in butt joint with the battery bearing piece 500, the electrode holes in the discharging body 100 are in butt joint communication with the electrode holes in the battery bearing piece 500.
Referring to fig. 1 and 2, in one embodiment, the battery carrier 500 is provided with a plurality of electrode holes, each electrode hole is provided with a discharge electrode member 400, and each two discharge electrode members 400 are used for electrically connecting at least one battery 30. By providing a plurality of electrode holes, the purpose of providing a plurality of batteries 30 can be achieved, which is advantageous for batch discharge application of the battery discharge device 10.
Referring to fig. 5 to 8, in an embodiment, the discharge electrode assembly 400 includes a discharge portion 410 and an electrode portion 420 connected to the discharge portion 410, the electrode portion 420 is disposed in the electrode hole in a penetrating manner for connecting with a post of the battery 30, and the discharge portion 410 is disposed in the discharge cavity 110 in a penetrating manner. The electrode part 420 is convenient to connect with the electrode post of the battery 30, and the discharge part 410 is convenient to connect with the discharge particles 20, so that the battery 30 is electrically connected with the discharge particles 20 through the discharge electrode member 400.
Specifically, the surface of the discharge portion 410 facing the discharge cavity 110 is a spherical cap surface 430, and a plurality of particle containing grooves 440 are formed on the spherical cap surface 430, and the particle containing grooves 440 can contain the charged particles 20. Further, the particle receiving groove 440 is a semicircular groove, and the size of the particle receiving groove 440 is matched with the size of the discharge particles 20. When the discharge particles 20 are pressurized, the discharge particles 20 automatically fill the particle receiving grooves 440. The spherical cap surface 430 of the discharge part 410 is utilized to make the pressure borne by the discharge electrode member 400 more uniform, and the particle accommodating groove 440 on the spherical cap surface 430 can not only improve the uniformity of the contact between the discharge particles 20 and the discharge part 410, but also make the uniformity of the contact between the discharge particles 20 and the discharge part 410 better, and simultaneously make the contact between the discharge particles 20 and the discharge part 410 tighter and the conductive discharge more stable.
In one embodiment, the discharge electrode 400 is disposed opposite to the pressing assembly 300, and the pressing assembly 300 is capable of moving and pressing in a direction toward the discharge electrode 400. In the process of pressing the discharge particles 20 in the discharge space 130 by the pressing assembly 300, it is more convenient to press the discharge particles 20 into the particle accommodating groove 440 of the discharge part 410.
In one embodiment, a post accommodating hole 450 is formed on a side of the electrode portion 420 opposite to the discharge portion 410, and an electrode spring plate 460 is disposed on a bottom wall of the post accommodating hole 450, wherein the electrode spring plate 460 is electrically connected with the discharge portion 410. After the battery 30 is placed in the carrying space 510, the electrode of the battery 30 can be inserted into the pole accommodating hole 450 to abut against the electrode spring plate 460, so as to electrically connect the battery 30 and the discharging portion 410.
Specifically, the elastic direction of the electrode spring 460 is the axial direction of the pole accommodating hole 450, so that the electrode spring 460 can be effectively abutted after the poles with different lengths of the different batteries 30 are inserted into the pole accommodating hole 450, and the adaptability of the electrode portion 420 to the electrical contact of the different batteries 30 is improved.
Referring to fig. 1 to 3 together with fig. 9, a battery discharge control method is applied to the battery discharge device 10 in any of the above embodiments, and the battery discharge control method includes:
step S510: acquiring a current discharge temperature of each discharge space 130;
step S520: comparing the temperature difference of the current discharge temperatures of the adjacent discharge spaces 130;
step S530: if the temperature difference between the current discharge temperatures of the adjacent discharge spaces 130 is greater than the preset difference, the pressing assembly 300 in the discharge space 130 with relatively low temperature is controlled to pressurize, and the pressing assembly 300 in the discharge space 130 with relatively high temperature is controlled to release pressure, so that the discharge particles 20 move from the discharge space 130 with relatively low temperature to the discharge space 130 with relatively high temperature through the communication channel 210.
In the above-described battery discharge control method, the discharge particles 20 for discharging are placed in the discharge chamber 110 of the discharge body 100, and the battery 30 may be placed in the discharge chamber 110 or electrically connected to the discharge particles 20 in the discharge chamber 110 through the electrical connection device. Then, the current discharge temperature of each discharge space 130 is obtained; comparing the temperature difference of the current discharge temperatures of the adjacent discharge spaces 130; if the temperature difference between the current discharge temperatures of the adjacent discharge spaces 130 is greater than the preset difference, the pressing assembly 300 in the discharge space 130 with relatively low temperature is controlled to pressurize, and the pressing assembly 300 in the discharge space 130 with relatively high temperature is controlled to release pressure to make a certain accommodating space, so that the discharge particles 20 move from the discharge space 130 with relatively low temperature to the discharge space 130 with relatively high temperature through the communication channel 210. The number of the discharge particles 20 in the discharge space 130 having a slow discharge rate is reduced, and thus the discharge rate can be appropriately increased, and the number of the discharge particles 20 in the discharge space 130 having a fast discharge rate is increased, and thus the discharge rate can be appropriately reduced, so that the overall discharge rate of the battery discharge device 10 is more uniform, and thus the overall discharge efficiency is improved.
In one embodiment, the step S530: if the temperature difference between the current discharge temperatures of the adjacent discharge spaces is greater than the preset difference, the method further comprises:
the driving partition plate 220 is penetrated in the discharge chamber 110 to partition the discharge space 130 having a relatively low current discharge temperature and the discharge space 130 having a relatively high current discharge temperature;
the partition plate 220 is driven to move and form a communication passage 210 with the discharge chamber 110.
By the battery discharge control method, not only can the individual voltage regulation control discharge rate of each discharge space 130 be realized, but also the circulation transfer of the discharge particles 20 among each discharge space 130 can be realized, the purpose of further regulating the discharge rate can be achieved, the uniformity of the discharge rate of the battery 30 in each discharge space 130 is improved, and the overall discharge efficiency is further ensured.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (7)
1. A battery discharge apparatus, characterized in that the battery discharge apparatus comprises:
the discharge body is provided with a discharge cavity for accommodating discharge particles, and one side of the discharge cavity is provided with a material pressing opening;
the separation assembly comprises a plurality of separation plates and a plurality of lifting driving parts, the separation plates can be arranged in the discharge cavity at intervals, the separation plates are used for separating the discharge cavity into a plurality of discharge spaces, each lifting driving part is used for correspondingly driving one separation plate to pass through the discharge cavity in a telescopic manner, each separation plate can form a communication channel communicated with the discharge spaces at two opposite sides of the separation plate, and the communication channels are used for passing through the discharge particles;
the number of the pressing components is consistent with that of the discharge spaces, each pressing component comprises a pressing plate and a pressing driving piece, each pressing plate can be penetrated in the corresponding discharge space through the pressing opening, the pressing driving pieces are used for driving the pressing plates to stretch and retract in the discharge spaces, and the outer edges of the pressing plates are in contact with the plate surfaces of the separation plates;
the discharge electrode part and the battery carrier are arranged on one side of the discharge body, a carrying space is formed in the battery carrier and is used for placing a battery, an electrode hole is formed in the connection position of the battery carrier and the discharge body, the electrode hole penetrates through the discharge cavity from the carrying space, and the discharge electrode part penetrates through the electrode hole.
2. The battery discharging device according to claim 1, wherein a plurality of the communication passages are formed on each of the separators, the communication passages are bar-shaped holes, the plurality of the bar-shaped holes are arranged at intervals, and a width dimension of the bar-shaped holes is larger than a diameter of the discharge particles.
3. The battery discharging apparatus according to claim 1, wherein the elevation driving member is capable of driving the partition plate to be disposed at a distance from an inner wall of the discharge chamber, and a distance between the partition plate and the inner wall of the discharge chamber is formed as the communication passage.
4. A battery discharging device according to claim 3, wherein the opposite sides of the partition plate are provided with filter screens, one side of each filter screen is connected to the inner wall of the discharge chamber, the other side of each filter screen is in contact with the plate surface of the partition plate, the communication channel is formed between the two filter screens, and the lifting driving member is used for driving the partition plate to move up and down between the two filter screens.
5. The battery discharging device according to claim 4, wherein a partition slot is formed on an inner wall of the discharge chamber, the partition slot being located between the two filter screens, a width dimension of a side of the partition plate facing the partition slot tends to decrease in a direction toward the partition slot, the side of the partition plate being insertable into the partition slot.
6. The battery discharging device according to any one of claims 1 to 5, wherein the discharging electrode member comprises a discharging part and an electrode part connected with the discharging part, the electrode part is arranged in the electrode hole in a penetrating manner and is connected with a pole of the battery, the discharging part is arranged in the discharging cavity in a penetrating manner, the surface of the discharging part facing the discharging cavity is a spherical crown surface, a plurality of particle containing grooves which are arranged at intervals are formed in the spherical crown surface, and the particle containing grooves can contain charged particles.
7. A battery discharge control method, characterized in that the battery discharge control method is applied to the battery discharge apparatus according to any one of claims 1 to 6, the battery discharge control method comprising:
acquiring the current discharge temperature of each discharge space;
comparing the temperature difference of the current discharge temperatures of the adjacent discharge spaces;
and if the temperature difference of the current discharge temperatures of the adjacent discharge spaces is larger than a preset difference, controlling the material pressing assembly in the discharge space with relatively low temperature to press, and controlling the material pressing assembly in the discharge space with relatively high temperature to release pressure so that the discharge particles move from the discharge space with relatively low temperature to the discharge space with relatively high temperature through the communication channel.
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| CN117878455B (en) * | 2024-03-13 | 2024-05-14 | 深圳市杰成镍钴新能源科技有限公司 | Discharging state optimization method and related device for retired battery |
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