CN215731861U - Novel storage battery module - Google Patents
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- CN215731861U CN215731861U CN202122029802.3U CN202122029802U CN215731861U CN 215731861 U CN215731861 U CN 215731861U CN 202122029802 U CN202122029802 U CN 202122029802U CN 215731861 U CN215731861 U CN 215731861U
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Abstract
The utility model relates to a novel storage battery module, wherein a satellite power supply system at least comprises: energy storage device, including at least one energy storage unit, it includes energy storage standard module, energy storage standard module includes the energy storage group, the energy storage group is used for storing the electric energy that the productivity unit converted out in order to supply the satellite system can't utilize solar energy or required power to exceed when solar power supply unit's power uses, energy storage standard module still includes the balanced management module that flow equalizes at least, it connects in the energy storage group, wherein, the input of energy storage group passes through the bus connection in the output of productivity unit, the output of energy storage group is connected in the input of system load, wherein, at least one energy storage monomer in the energy storage group inside sets up and/or is connected with the coating has the softener layer and/or by the separator that the softener layer formed. The utility model has strong expansibility, can adapt to different types of energy storage combinations, meets the development requirements of modern satellites, and can avoid the short circuit and explosion risks of the storage battery module.
Description
Technical Field
The utility model relates to the field of satellite power supply system design, in particular to a novel storage battery module.
Background
With the development of commercial aerospace, more stringent requirements are put on commercial satellites, and the core requirements of the commercial satellites are as follows: the development cost is low, the development period is short, namely the business mode of commercial aerospace determines that the satellite needs to be shifted from single customization to productization, serialization and shelving, and therefore the design and development of the commercial satellite are required to have good adaptability and expandability. The satellite energy system is used as a large component of the satellite system, the requirements are the same, the adaptability is wide, and the expandability is strong, so that the satellite energy system is one of important design ideas of commercial satellite energy systems.
CN106100096B discloses a high-efficient electrical power generating system of satellite low pressure that receives a little, adopts 12V low pressure non-regulation generating line topological structure, regards lithium ion energy storage group as the energy storage mechanism, adopts the reposition of redundant personnel regulation mode to realize power regulation and steady voltage and for energy storage group constant current-constant voltage charging. Grouping and connecting the solar battery packs, and respectively and correspondingly supplying power directly and in a shunting manner; the shunt circuit is designed with fault isolation, and when the system judges that the shunt circuit has a fault, the functions of stabilizing the bus and charging the energy storage group at constant voltage are realized through a group of switches which are mutually backup with the shunt circuit; the satellite-ground power supply interface can realize that the satellite starts to work after being powered on when the satellite and the arrow are separated; the charging management and the over-discharge protection can be carried out aiming at different service life periods. The power supply system has the characteristics of low power consumption, small volume and light weight, and can be applied to a micro-nano satellite power supply system with the whole satellite load power consumption of 5-100W.
CN103956822B discloses a satellite power supply system of quick integrated, belongs to the power field, relates to a satellite power supply system. The problem of current satellite power system compatibility poor is solved. The system comprises an energy storage group, a solar battery group and a power control and distribution unit; the energy storage group is used for supplying power to the whole satellite load and the power control and distribution unit of the satellite; the solar battery pack is used for converting the received light energy into electric energy to charge the energy storage pack; the solar battery pack is connected with the power control and distribution unit through an electric connector; the solar battery pack comprises n solar battery monomers, and the n solar battery monomers are connected in series or in parallel through a lead; and n is an integer greater than or equal to 2. The utility model is suitable for supplying power to satellites.
Even so, the battery modules currently used in satellite systems in the prior art still present at least one or several technical problems:
1. when a storage battery module used in a conventional satellite system performs charge and discharge equalization and circuit protection control, the circuit design and arrangement are complicated.
2. When an existing satellite system is used for designing a storage battery module and a protection control loop of the storage battery module, the existing satellite system is basically customized, namely, the existing satellite system is designed for each satellite singly, so that the adaptability and the expandability of the existing satellite system are relatively poor, and the business development of commercial satellites is not facilitated.
3. The storage battery module in the existing satellite system adopts a common storage battery pack, and for an energy storage monomer, the storage battery pack is easy to generate a combustion explosion risk due to temperature management failure during in-orbit operation, so that the operation failure of the whole satellite system is caused.
Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the present invention provides a novel battery module, which is directed to solving at least one or more of the problems of the prior art.
In order to achieve the above object, the present invention provides a novel battery module, which is disposed in a satellite power system formed by a satellite system and a solar cell, wherein the satellite power system may include one of the following components: the energy storage device comprises at least one energy storage unit which comprises a storage battery module, wherein the storage battery module comprises an energy storage group, and the energy storage group is used for storing the electric energy converted by the energy production unit so as to be used when the satellite system cannot utilize solar energy or the required power exceeds the power of the solar power supply device.
Preferably, the energy storage device circuit is connected to the energy generation device, and the energy generation device includes at least one energy generation unit for converting the acquired solar energy into electric energy, where the energy generation unit includes at least a solar cell set and an MPPT circuit, an input end of the MPPT circuit is connected to an output end of the at least one solar cell set, and an output end of the MPPT circuit is connected to an input end of the load through a bus.
Preferably, the energy storage standard module further comprises a balancing current-sharing management module connected to the energy storage group, wherein an input end of the energy storage group is connected to an output end of the energy production unit through a bus, an output end of the energy storage group is connected to an input end of a system load, and at least one energy storage monomer in the energy storage group is internally provided with and/or connected with a spacer coated with and/or formed by a softening layer
Preferably, at least one separator is arranged and/or connected between the positive and negative pole parts of at least one energy storage cell in the energy storage pack, the separator being formed by coating and/or extrusion of at least one polymer-containing softening layer on each other.
Preferably, the at least one solar cell set can be connected with the at least one MPPT circuit to form a basic energy production module of the energy production device, so that the storage battery module can meet the energy production and/or power supply requirement by replacing the at least one basic energy production module.
Preferably, the at least one equalizing current sharing management module and the at least one energy storage group are connected to form a basic energy storage module of the energy storage device in combination, so that the storage battery module can meet the energy storage and/or power supply requirements in a manner of replacing the at least one basic energy storage module.
Preferably, the at least one basic energy storage module and the at least one basic energy production module can be connected in a manner of meeting different power supply requirements by combining different types and/or numbers of energy production units and energy storage units.
Preferably, the equalizing and current-sharing management module at least comprises a dedicated battery equalizing and current-sharing management chip and a matched integrated circuit, wherein the output end of the dedicated battery equalizing and current-sharing management chip is connected to the energy storage group so as to be capable of collecting the voltage and/or current value of the energy storage group and thereby control the input and/or output power of the electric energy in the energy storage group.
Preferably, the solar battery pack comprises at least one solar battery pack module, the solar battery pack module can be connected to the MPPT circuit in a manner of collecting and converting solar energy in an operating space where the satellite is located into electric energy, and the MPPT circuit transforms the electric energy to be transmitted to the energy storage pack for storage.
Preferably, the output end of the energy storage device is connected to a load, and the load is connected to the output end of the MPPT circuit and/or the output end of the energy storage group through a bus in a mode of receiving electric energy in the energy storage device and/or the energy generating device.
Preferably, the solar battery module is formed by symmetrically arranging at least two solar battery wings, and each wing of the solar battery module is provided with a power supply array and a charging array, wherein the solar battery module can be divided into a power supply array and a charging array, the power supply array is divided into a controlled array and an uncontrolled array, and the charging array further comprises a trickle array.
Preferably, the equalizing and current-sharing management module is further integrated with and/or connected with at least one SOC detection unit, and the SOC detection unit is connected to the energy storage pack in a manner of being capable of detecting the SOC value of the energy storage pack in real time.
The beneficial technical effects of the utility model comprise one or more of the following:
1. the utility model replaces the traditional complex control circuit, simplifies the control management circuit of the energy storage group to the chip level, and breaks through the management mode of the energy storage battery pack of the prior satellite system.
2. The special chip adopted in the energy storage standard module has wide application range, can adapt to different types of energy storage combinations, and has strong expansibility.
3. The separator of the energy storage monomer can shrink to a minimum degree in a high-temperature environment, so that the contact between the positive electrode and the negative electrode is blocked to the maximum degree, and the internal short circuit of the battery is avoided; meanwhile, the softening layer with high temperature resistance is not easy to melt, so that the explosion risk of the energy storage monomer can be further reduced, and the operation failure of the satellite system can be avoided.
Drawings
FIG. 1 is a schematic diagram of a preferred construction of the present invention;
FIG. 2 is a schematic diagram of a preferred internal cross-section of an energy storage cell;
fig. 3 is a schematic view of a preferred construction of the spacer.
List of reference numerals
1: the capacity device 2: energy storage device
100: the capacity unit 200: energy storage unit
101: solar cell group 201: energy storage group
102: MPPT circuit 202: balanced current sharing management module
3: the load 2011: energy storage monomer
20111: positive electrode 20112: negative electrode part
20113: spacer 113 a: softening layer
Detailed Description
The following detailed description is made with reference to the accompanying drawings.
The utility model relates to a novel battery module for a satellite power supply system, which can comprise one of the following components: the energy production device 1 comprises at least one energy production unit 100, and is used for converting the acquired solar energy into electric energy; the energy storage device 2 comprises at least one energy storage unit 200 for storing the electric energy converted by the energy generation unit 100 for the satellite system to use when the solar energy cannot be utilized or the required power exceeds the power of the solar energy power supply device.
According to a preferred embodiment, the energy storage unit 200 at least includes a storage battery module, and the storage battery module at least includes an energy storage group 201 and a balance current sharing management module 202, wherein the energy storage group 201 is used for storing electric energy to cooperate with the solar battery pack, and the balance current sharing management module 202 at least includes a dedicated battery balance current sharing management chip and its supporting circuit, which is connected to the energy storage group 201 and controls its input and/or output power.
According to a preferred embodiment, the power generation unit 100 comprises at least one solar cell set 101 and an MPPT circuit 102, wherein the at least one solar cell set 101 and the at least one MPPT circuit 102 are connected to form a basic power generation module of the power generation device 1, so that only the at least one basic power generation module needs to be replaced when performing maintenance and/or satisfying power supply requirements of different satellite systems. Preferably, the types or the number of the solar cell sets 101 and/or the MPPT circuits 102 in the basic power generation module may not be completely the same as long as the power of the electric energy finally output by the MPPT circuits 102 is the same. Further, the solar cell set 101 is used for converting solar energy into electric energy after being absorbed, an input end of the MPPT circuit 102 is connected to at least one of the solar cell sets 101, and an output end thereof is connected to the energy storage standard module, the load 3 and the capacitor array, respectively.
According to a preferred embodiment, the solar cell set 101 comprises several solar cell set modules (101-. Further, the types of solar cells include, but are not limited to: a silicon solar cell, a multi-compound thin film solar cell, a polymer multi-layer modified electrode solar cell, a nanocrystal solar cell, an organic solar cell, a plastic solar cell, etc., and preferably, a gallium arsenide solar cell having high photoelectric conversion efficiency may be used as the solar cell in this embodiment.
Alternatively, the solar cell set 101 may be composed of two identical wings, each wing being composed of three solar panels, specifically an inner panel, a middle panel and an outer panel. The solar battery pack 101 may be divided into a power supply array and a charging array, the power supply array is divided into a controlled array and an uncontrolled array, and the charging array is divided into two charging arrays and a trickle array. Each wing of the solar battery pack is provided with a power supply array and a charging array, and the two wings are symmetrically provided with pieces. The square matrix design needs to be based on several factors: the voltage of a bus or an energy storage group, the reduction of the working voltage value caused by electron radiation, the supply of power for a load by considering the maximum working temperature of the solar battery group, and the voltage drop of wires, cables and isolation diodes.
According to a preferred embodiment, the kind of capacitive array may be selected from one of the following types: electrolytic capacitors, monolithic capacitors, ceramic chip capacitors, tantalum electrolytic capacitors, polyester capacitors, and the like. Preferably, the capacitor array used in the present embodiment may be a tantalum capacitor.
According to a preferred embodiment, the MPPT circuit 102 is mainly responsible for at least one MPPT chip (102-1,102-2, … …, 102-N) and associated circuitry. The MPPT chip can collect a current and/or voltage value of the electric energy converted by the solar cell set 101, and further transform the electric energy into a voltage current and/or a power value required by the energy storage set 201. Preferably, the conversion method adopted by the MPPT chip includes, but is not limited to: superbuck transform, He-boost transform, Buck-boost transform, and the like.
Preferably, since the solar cell 101 is connected to the bus by connecting the PPT controller and the power converter in series, the peak power tracking topology should ensure that the loss of the power converter is less than the gain of the system operating at peak power. The MPPT chip is used to track the maximum power point of the solar cell 101. The MPPT chip is used for tracking the maximum power point of the solar battery pack 101 in real time after being input by a maximum power point tracking and driving a conversion module circuit through a driving circuit so as to ensure the peak value output of the solar battery pack 101.
According to a preferred embodiment, the types of storage batteries available for the energy storage pack 201 for the satellite system power supply include, but are not limited to, the following categories: a cadmium-nickel energy storage group, a nickel-hydrogen energy storage group, a silver-zinc energy storage group, a lithium ion battery group, a fuel battery group and the like. Preferably, the energy storage pack 201 used in the present embodiment may use a lithium ion energy storage pack with a higher specific energy at present, so as to supplement the energy shortage of the solar battery pack 101 during the terrestrial solar shadow to supply the load 3 on the satellite system.
Preferably, the number of the single batteries in series connection can be calculated according to the requirement of the whole star on the bus voltage, for example, if the required voltage of the whole star bus is 16-20.4V, the number of the battery packs in series connection is as follows: 20.4/3.6 ═ 6 (section). The lithium ion single batteries can be connected in parallel to increase the whole capacity and keep the voltage constant, and if the large capacity is needed and the requirement on the bus is high, the requirement can be met by connecting the single batteries in series and parallel.
Optionally, a temperature sensing alarm device may be disposed in the battery box for housing the energy storage pack 201, and the temperature sensing alarm device may cooperate with the equalizing and current equalizing management module 202 to detect the operating temperature of the energy storage pack 201 in real time. Optionally, when the alarm temperature is reached, the temperature sensing alarm device sends out an alarm signal and uploads the alarm signal to a console of the whole satellite system. When the energy storage pack is cooled, besides using a conventional radiation cooling method, a cooling device using, for example, a chemical substance capable of absorbing heat and volatilizing may be correspondingly provided, and the cooling device is used to perform heat adjustment on the storage battery pack 201 in time to ensure a proper working temperature, so as to avoid explosion risks of the storage battery pack 201 and even the whole star system.
In an energy storage cell 2011 such as a lithium ion battery or a cadmium-nickel battery, a separator and/or a separator is often provided between the positive electrode 20111 and the negative electrode 20112 of the battery to prevent the positive electrode 20111 and the negative electrode 20112 from contacting and short-circuiting. The general separator and/or separator has a certain high temperature resistance or acid and alkali resistance, but the porous separator and/or separator made of a polymer such as polypropylene or polyethylene is almost completely melted or decomposed at 100 to 200 ℃.
According to a preferred embodiment, in the present embodiment, the energy storage cells 2011 of the energy storage pack 201 employ a separator 20113, such as a membrane and/or a spacer, whose surface is coated with one or more softening layers 113a formed of a polymer, such as polyetherketone, and/or the separator 20113 can be formed of one or more softening layers 113a formed of a polyetherketone polymer by a conventional extrusion or casting process. Preferably, the separator 20113 coated with or formed of the softening layer 113a is capable of partially softening/melting at a temperature interval higher than the melting point of the general separator and/or diaphragm. Preferably, the softening or melting temperature range of the separator 20113 is 200 ℃ to 350 ℃. For example, polymers such as polyether ketone and the like have good high-temperature resistance thermoplasticity, and when a satellite power supply system is in a deep space operation state for a long time, if heat rises and/or temperature is out of control due to heat dissipation of the power supply system or a fault of a temperature control system, the separator 20113 with the softening layer 113a can shrink to a minimum extent in a high-temperature environment, so that contact between the positive electrode 20111 and the negative electrode 20112 is blocked to a maximum extent, and internal short circuit of the battery is avoided; meanwhile, the isolating piece 20113 with the softening layer 113a is not easy to melt, so that the risk of spontaneous combustion and explosion of the energy storage monomer 2011 can be further reduced.
According to a preferred embodiment, the equalizing current sharing management module 202 at least includes a dedicated battery equalizing current sharing management chip and its supporting circuit, which is connected to the energy storage group 201 for controlling the input and/or output power of the energy storage group 201. Preferably, the at least one equalizing current sharing management module 202 and the at least one energy storage group 201 are connected to form a basic energy storage module of the energy storage device 2, so that only the at least one basic energy storage module needs to be replaced when performing maintenance and/or meeting the power supply requirements of different satellite systems. Preferably, the types or the number of the energy storage groups 201 and/or the equalizing current sharing management modules 202 in the basic energy storage module may not be completely the same, and the electric energy finally delivered to the system load by the energy storage groups 201 may be the same. Preferably, the basic energy production modules in the energy production unit 100 and the basic energy storage modules in the energy storage device 200 can be combined to form the power supply modules of the satellite system at least by changing the number and/or types, so as to meet the requirements under different operating conditions, and facilitate maintenance and the like.
Preferably, the equalizing and current sharing management module 202 is integrated with an SOC detection unit, and is capable of detecting a real-time SOC value of the energy storage pack 201, and the detection method adopted by the equalizing and current sharing management module includes, but is not limited to: the method comprises the following steps of a discharge detection method, an open-circuit voltage method, an ampere-hour integration method, a high-level estimation method, a composite method and the like, wherein the discharge detection method comprises the steps of carrying out constant-current discharge on a power battery according to a certain discharge rate until the cut-off voltage of the battery is reached, and multiplying constant current by discharge time to obtain the discharged electric quantity of the battery, namely an SOC value; the open-circuit voltage method is to indirectly fit the relationship between the open-circuit voltage of the battery and the SOC of the battery according to the variation relationship between the open-circuit voltage and the lithium ion concentration in the battery, namely the SOC value of the current battery is obtained through an OCV-SOC relationship table and/or a curve; the ampere-hour integration method is to estimate the SOC of the battery by accumulating the amount of charge or discharge; the high-level estimation algorithm is to estimate the SOC based on an adaptive model and/or an iterative method, and a kalman filter and a neural network are commonly used, wherein the kalman filter is an optimal estimation in the sense of minimum variance on the system state, that is, a state equation is established for the system, and the state estimation is performed on the energy storage group 201 by using methods such as least square estimation, minimum variance estimation, recursive least square estimation and the like; the composite method combines any one of the above methods as the name implies to make up for the defects of any one method according to the actual requirements. The real-time detection of the SOC value of the energy storage pack 201 can avoid explosion risks caused by overcharge and overdischarge of the energy storage pack.
According to a preferred embodiment, the input and/or output control function of the equalizing and current-sharing management module 202 is mainly assumed by a dedicated battery equalizing and current-sharing management chip, that is, a dedicated IC chip, specifically, the dedicated IC chip is a battery management chip commonly used in industrial electronics, so that the complex circuit control can be simplified to a chip level, thereby breaking through the complex design of the conventional management of the energy storage group 201.
Preferably, the equalizing and current-sharing management module 202 detects the SOC of the energy storage pack 201 in real time, and the equalizing and current-sharing management module 202 controls the power supply capability and the output power of the energy storage pack 201 through a dedicated IC chip based on the SOC real-time detection value, in combination with the voltage and/or current value input by the MPPT circuit 102 and the power requirement of the load 3 of the satellite system. Further, the control method can improve the safety performance of the energy storage group 201 and prolong the service cycle and/or the service life of the energy storage group 201 while ensuring the balanced output of the energy storage group 201, thereby ensuring the stable operation of the whole satellite system.
According to a preferred embodiment, the application specific IC chip may collect the voltage signal V and/or the current signal I of the energy storage group 201, and generate the charging and/or discharging control signal through a control strategy, wherein the charging and/or discharging control signal at least includes a constant voltage signal and/or a constant current signal. Further, the dedicated IC chip may perform processing such as voltage division and/or current division, difference, and the like on the collected voltage signal V and/or current signal I of the energy storage group 201 to finally output a constant voltage signal and/or a constant current signal.
Preferably, the MPPT circuit 102 controls the output power of the electric energy converted by the solar battery set 101 when being delivered to the energy storage device 2 based on the acquired voltage and/or current value of the bus when the satellite system is in the earth shadow period. The equalizing current sharing management module 202 can detect the total voltage of the energy storage group 201 and the voltage and/or current values of the single batteries therein. Specifically, the output power of the energy storage set 201 may be controlled by setting a threshold of voltage and/or current. When the energy storage group 201 outputs electric energy to the load 3, if the threshold of the voltage and/or current of the energy storage group 201 is reached, the power supply of the energy storage group 201 is cut off to realize the balanced output management of the energy storage group 201. Preferably, when the satellite system is in a long illumination period, the equalizing and current-sharing management module 202 controls the input and output voltage and/or current values of the energy storage group 201, and the threshold is used as a reference to avoid that the voltage and/or current input to the energy storage group 201 is excessive, so as to cause overcharge and overdischarge of the energy storage group 201. The equalizing and current-sharing management module 202 can prevent overcharge and overdischarge of the energy storage group 201, so as to be beneficial to improving the service cycle and/or the service life of the energy storage group 201, and further improve the reliability of the satellite system.
Preferably, if the battery is discharged for a long time without taking control measures, when the power of the energy storage set 201 is close to being discharged, the whole star will be powered off due to insufficient power in a few minutes, and even overdischarge in a few minutes will still cause irreversible damage to the energy storage set 201. In order to avoid the operation failure of the whole satellite system caused by the overdischarge of the energy storage group 201, a state detection and control protection integrated circuit is designed on a special IC chip in the equalizing and current-sharing management module 202, once the overdischarge of the energy storage group 201 is detected, the equalizing and current-sharing management module 202 sends an instruction to temporarily close some possibly unnecessary loads, and if the measure still cannot bring obvious effect, the connection relationship between the energy storage group 201 and a bus can be directly controlled, namely, the way of supplying power by using the energy storage group 201 is directly cut off. Further, when the satellite system enters an illumination period, and the solar battery pack 101 can stably output energy, the equalizing and current-sharing management module 202 sends a signal to reestablish the connection between the energy storage pack 201 and the bus, at this time, the solar battery pack 101 can continuously charge the energy storage pack 201, and the energy storage pack 201 is recovered to be normally used.
Preferably, the application specific IC chip used in the present embodiment has a wide application range, and can be adapted to various types of energy storage combinations, including but not limited to specific energy storage group types and/or numbers. Furthermore, the whole function module can be simply expanded according to the requirement of the satellite application to provide stronger capability, has good expansibility and can meet the diversified requirements of the development of the commercial satellite at present.
For ease of understanding, the principles of operation and methods of use of a novel battery module of the present invention will be discussed.
In using the novel battery module provided according to the present application, the solar cell set 101 stores and converts solar energy or light energy into electrical energy when the satellite system is in operation, and further delivers the electrical energy to the MPPT circuit 102. Further, the MPPT circuit 102 can collect a voltage or a current value of the bus, and control an output power when a part of the electric energy converted by the solar battery 101 is transmitted to the load 3 of the satellite system and the energy storage device 2 based on the system load. In addition, the rest of the solar energy converted by the solar cell set 101 is processed by the MPPT circuit 102 and then transmitted to the energy storage device 2 in the form of electric energy, specifically, the electric energy is stored in the energy storage set 201. The equalizing and current-sharing management module 202 in the energy storage device 2 is electrically connected to the energy storage group 201, and the equalizing and current-sharing management module 202 realizes current-sharing input and/or output of the energy storage group 201 based on the input voltage and/or current of the MPPT circuit 102, so as to prevent the energy storage group 201 from being overcharged or overdischarged to damage the service cycle and/or the service life thereof. When the satellite system enters the terrestrial shadow period, the electric energy stored in the energy storage group 201 is utilized to solve the insufficiency of the solar energy, the balanced current-sharing management module 202 controls the output voltage and/or current of the energy storage group 201, and the phenomenon of over-current and/or over-discharge of the energy storage group 201 is avoided, so that the stable output of the energy storage group 201 is controlled.
The novel storage battery module simplifies the management of the energy storage group to the chip level, breaks through the management mode of the conventional aerospace energy storage group, reduces the design and maintenance cost to a certain extent due to simple circuits, has strong adaptability for a special IC chip used in a storage battery standard module, can meet the combination requirement of various storage batteries, can realize the balanced and uniform input and/or output management of the energy storage group, and meets the diversified requirements of the development of modern commercial satellites. Particularly, for the energy storage monomer in the energy storage group, the adopted separator can separate the contact between the positive electrode and the negative electrode to the maximum extent so as to avoid the internal short circuit of the battery; meanwhile, the softening layer with high temperature resistance is not easy to melt, so that the explosion risk of the energy storage monomer can be further reduced, and the operation failure of the satellite system can be avoided.
It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the utility model. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the utility model is defined by the claims and their equivalents.
Claims (10)
1. A novel battery module for a satellite power system, the satellite power system comprising at least:
a power generation device (1) for converting the acquired solar energy into electric energy for use by a system load and/or for providing the electric energy to an energy storage device (2) for storage,
the energy storage device (2) comprises at least one energy storage unit (200) which comprises an energy storage module, wherein the energy storage module at least comprises an energy storage group (201), the energy storage group (201) is used for storing the electric energy converted by the energy generation unit (100) for the satellite system to use when the solar energy cannot be utilized or the required power exceeds the power of the energy generation device (1),
it is characterized in that the preparation method is characterized in that,
the storage battery module also comprises a balance current sharing management module (202), the balance current sharing management module (202) is connected to the energy storage group (201), wherein,
the input end of the energy storage group (201) is connected to the output end of the energy production unit (100) through a bus, the output end of the energy storage group (201) is connected to the input end of the load (3), wherein at least one energy storage monomer (2011) in the energy storage group (201) is internally provided with and/or connected with a separator (20113) coated with a softening layer (113a) and/or formed by the softening layer (113 a).
2. The battery module according to claim 1, characterized in that at least one of the spacers (20113) is arranged and/or connected between the positive pole part (20111) and the negative pole part (20112) of at least one energy storage cell (2011) in the energy storage pack (201), the spacers (20113) being formed by coating and/or extrusion from at least one softening layer (113a) containing a polymer.
3. The battery module according to claim 1, characterized in that the equalizing current sharing management module (202) is integrated and/or connected with at least one SOC detection unit, which is connected to the energy storage pack (201) in such a way that the SOC value of the energy storage pack (201) can be detected in real time.
4. The accumulator module according to claim 1, characterized in that the energy production unit (100) comprises at least a solar cell set (101) and an MPPT circuit (102), wherein the MPPT circuit (102) has an input connected to the output of at least one of the solar cell sets (101) and an output connected to the input of the load (3) via a busbar.
5. The battery module according to claim 4, wherein at least one solar cell set (101) is connectable to at least one MPPT circuit (102) to form a basic energy production module of the energy production device (1) in combination, so that the battery module can meet the energy production and/or power supply requirements by replacing at least one basic energy production module.
6. The battery module according to claim 1, characterized in that at least one equalizing current management module (202) and at least one energy storage group (201) are connected to form in combination one basic energy storage module of the energy storage device (2), so that the battery module can meet the energy storage and/or power supply requirements by replacing at least one basic energy storage module.
7. The battery module according to claim 6, wherein at least one basic energy storage module and at least one basic energy production module are connected in such a way that different types and/or numbers of energy production units (100) and energy storage units (200) can be combined to meet different power supply requirements.
8. The battery module according to claim 3, wherein the equalizing current sharing management module (202) at least comprises a dedicated battery equalizing current sharing management chip and a matched integrated circuit, wherein an output end of the dedicated battery equalizing current sharing management chip is connected to the energy storage group (201) to be able to collect a voltage and/or a current value of the energy storage group (201) so as to control input and/or output power of electric energy in the energy storage group (201).
9. The accumulator module according to claim 4, characterized in that the solar battery (101) comprises at least one solar battery module connectable to the MPPT circuit (102) in such a way as to collect and convert the solar energy in the operating space in which the satellite is located into electrical energy, the MPPT circuit (102) being connectable to the energy storage pack (201) in such a way as to deliver the electrical energy transformation process to the energy storage pack (201) for storage.
10. The battery module as claimed in claim 9, wherein the solar cell module is symmetrically arranged by at least two solar cell wings, each wing of the solar cell module is provided with a power supply array and a charging array, wherein the solar cell module can be divided into a power supply array and a charging array, the power supply array is divided into a controlled array and an uncontrolled array, and the charging array further comprises a trickle array.
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| CN202122029802.3U CN215731861U (en) | 2021-08-26 | 2021-08-26 | Novel storage battery module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122029802.3U CN215731861U (en) | 2021-08-26 | 2021-08-26 | Novel storage battery module |
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| CN215731861U true CN215731861U (en) | 2022-02-01 |
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