WO2020233407A1

WO2020233407A1 - Hybrid power energy storage cell, unit, module, and device, and control method

Info

Publication number: WO2020233407A1
Application number: PCT/CN2020/088884
Authority: WO
Inventors: 李长明; 曾庆欣; 辛程勋; 吴超; 辛民昌
Original assignee: 青岛九环新越新能源科技股份有限公司
Priority date: 2019-05-22
Filing date: 2020-05-07
Publication date: 2020-11-26

Abstract

A hybrid power energy storage cell (10). A battery unit (12) and a capacitor unit (13) can be merged together to reduce the volume and weight and increase the energy density, and any combination of battery units (12), or of capacitor units (13), or of battery units (12) and capacitor units (13) can output electrical energy outward, and the electrical energy output ratio of the battery units (12) to the capacitor units (13) can be controlled according to different application scenarios while satisfying the requirements for energy storage capacity and high-power discharge, so that the battery units (12) always operate at the optimum rate, achieving the purpose of long-distance and long-service life cycle use. In the same way, an energy storage power unit (20), module (30), and device (40) can control the electrical energy output ratio of the battery units (12) to the capacitor units (13) according to different application scenarios, so that the battery units (12) always operate at the optimum rate, achieving the purpose of long-distance and long-service life cycle use.

Description

Composite power energy storage cell, monomer, module, equipment and control method

Technical field

The invention belongs to the technical field of energy storage equipment, and specifically relates to a composite power energy storage cell, a monomer, a module, equipment and a control method.

Background technique

Electric vehicles are powered by electric energy and are clean, efficient, and environmentally friendly. With the continuous development of electric vehicles, the share of electric vehicles is increasing. Electric vehicles run in different states and have different requirements for batteries. When driving at low speeds, electric vehicles do not require high battery discharge power, and the batteries work under low discharge rate conditions; when driving at high speeds, the discharge of electric vehicles requires high power, which is often required at this time. The battery is required to work under high discharge rate conditions. In addition, when electric vehicles are driving in different application scenarios, they need to meet different working conditions. Because different application scenarios require different output powers, energy storage equipment is required to adapt to different application scenarios and output different powers, such as electric When a car encounters a long-distance climbing state, it needs to provide a high-power power output for a long time. The existing battery cannot meet this demand due to the limitation of the high-power output; for example, the electric car in the pit can be removed from the pit. When driving out, the energy storage device also needs to output high power in a short time.

If the battery keeps working at a low discharge rate, its battery life and service life will be greatly improved. The high discharge rate conditions will cause the battery to wear out too quickly. When the battery is used for a period of time, the storage capacity and discharge performance of the battery will decrease, which not only causes the battery life and service life to decrease, but also The situation where high power output cannot be performed will directly affect the user experience.

With the development of the field of energy storage technology, those skilled in the art have discovered that capacitors and batteries have their own characteristics, advantages and disadvantages. Capacitors have the advantages of fast charging and discharging and long service life. They can be used to output high power, but the energy storage capacity is smaller than that of batteries. Batteries have the advantage of large energy storage capacity, but have the disadvantage of slow charging and discharging. If used to output high power, their service life will be greatly affected.

Summary of the invention

In view of this, the purpose of the present invention is to provide a composite power energy storage cell, cell, module, equipment and control method, which can reasonably select battery power supply according to different electrical equipment and different working conditions of electrical equipment. Capacitor power supply or battery capacitor combined power supply.

To achieve the above objective, the present invention provides the following technical solutions:

The present invention first proposes a composite power energy storage battery cell, which includes a polymer soft package body, and at least one battery unit and at least one capacitor unit that are arranged in the polymer soft package and compounded as a whole.

Furthermore, each battery unit is provided with a positive electrode ear and a negative electrode ear; or,

When the battery unit includes at least two battery units, all the battery units can be further combined into at least one battery unit group, and among all the battery unit groups, at least one battery unit group includes at least two connected in parallel Or battery cells connected in series; the battery cell group is provided with a positive ear and a negative ear.

Further, each of the capacitor units is provided with a first tab and a second tab; or,

When the capacitor unit includes at least two, all of the capacitor units can be further combined into at least one capacitor unit group, and among all the capacitor unit groups, at least one of the capacitor unit groups includes at least two capacitor units connected in parallel. Or series-connected capacitor units; the capacitor unit group is provided with a first tab and a second tab.

Further, the battery unit includes a battery diaphragm, a positive electrode and a negative electrode are respectively provided on both sides of the battery diaphragm, and a battery electrolyte is provided between the positive electrode and the negative electrode;

The capacitor unit includes a capacitor diaphragm, a first electrode and a second electrode are respectively provided on both sides of the capacitor diaphragm, and a capacitor electrolyte is provided between the first electrode and the second electrode.

Further, the battery unit and the capacitor unit are stacked together;

When the adjacent battery cell and the capacitor unit are connected in series or in parallel, an electronically conductive but ion-isolated ion insulator is provided between the adjacent battery cell and the capacitor unit;

When the adjacent battery cells and the capacitor cells are independent of each other, an electronically insulated and ion-isolated insulator/current collecting plate is provided between the adjacent battery cells and the capacitor cells.

Further, the battery cells are stacked together;

When two adjacent battery cells are connected in series or in parallel, an electronically conductive but ion-isolated battery conductive layer is provided between the two adjacent battery cells;

When two adjacent battery cells are independent of each other, an electronically insulated and ion-isolated battery insulating layer is provided between the two adjacent battery cells.

Further, the capacitor units are stacked together;

When two adjacent capacitor units are connected in series or in parallel, an electronically conductive but ion-isolated capacitor conductive layer is provided between the two adjacent capacitor units;

When two adjacent capacitor units are independent of each other, an electronically insulated and ion-isolated capacitor insulating layer is provided between the two adjacent capacitor units.

The present invention also provides a composite power energy storage monomer, which includes a single housing, and at least one composite energy storage cell is provided in the monomer housing;

The composite energy storage cell adopts the composite power energy storage cell as described above; or,

The composite energy storage battery cell includes a polymer soft package body and one battery unit or at least two battery units combined into one body arranged in the polymer soft package body; or,

The composite energy storage cell includes a polymer soft package body and one capacitor unit or at least two capacitor units integrated into one body arranged in the polymer soft package body.

Further, a flame-retardant, gas-permeable and liquid-permeable filler used to fix the composite energy storage cell is provided in the monomer housing.

Further, it also includes a cell control circuit for controlling the output electric energy of the composite energy storage cell;

The composite energy storage cell is provided with a first battery tab group and/or a first capacitor tab group; all the first battery tab groups and/or first capacitor tabs of the composite energy storage cell The groups are electrically connected to the battery control circuit; or,

When at least two of the composite energy storage cells are provided in the single housing, at least one composite energy storage cell group can be further formed between all the composite energy storage cells; all the composite energy storage cells In the energy battery cell group, at least one of the composite energy storage battery cell group includes at least two composite energy storage battery cells connected by internal circuits, and the composite energy storage battery cell group is provided with the battery cell control circuit. The connected second battery tab group and/or second capacitor tab group.

The present invention also provides a composite power energy storage monomer, including a single housing, and at least one battery and/or at least one capacitor is provided in the single housing;

A positive electrode connection point and a negative electrode connection point are respectively provided on the single housing and the positive electrode and the negative electrode of each battery. The positive electrode connection point is electrically connected to the corresponding positive electrode, and the negative electrode connection point is connected to Electrical connection between the corresponding negative electrodes; or,

When the battery includes at least two batteries, all the batteries may further form at least one battery pack, and among all the battery packs, at least one of the battery packs includes at least two batteries connected in series or in parallel; The battery pack is provided with a positive electrode internal connection point and a negative electrode internal connection point; the single housing is provided with a positive electrode connection point and a negative electrode connection point corresponding to the positive electrode internal connection point and the negative electrode internal connection point of each battery pack. A connection point, an electrical connection between the positive connection point and the corresponding positive internal connection point, and an electrical connection between the negative connection point and the corresponding negative internal connection point;

A first connection point and a second connection point are respectively provided on the single housing and the first electrode and the second electrode of each of the capacitors, and the first connection point is between the corresponding first electrode Electrically connected, the second connection point is electrically connected to the corresponding second electrode; or,

When the capacitors include at least two, all the capacitors may further form at least one capacitor group, and among all the capacitor groups, at least one of the capacitor groups includes at least two capacitors connected in series or in parallel; A first interconnection point and a second interconnection point are provided on the capacitor group; the first interconnection point and the second interconnection point of each of the capacitor groups are respectively provided on the single housing A first connection point and a second connection point, the first connection point is electrically connected to the corresponding first interconnection point, and the second connection point is electrically connected to the corresponding second interconnection point. connection.

Further, a flame-retardant, gas-permeable and liquid-permeable filler filled between the batteries, between the capacitors, and between the batteries and the capacitor is provided in the single housing.

The present invention also provides a composite power energy storage module, including a module housing, and at least one composite power energy storage monomer as described above is arranged in the module housing.

Further, the composite power energy storage unit is detachably arranged in the module housing.

Further, it also includes a unit control circuit for controlling the output electric energy of the composite power energy storage unit;

The composite power energy storage unit is provided with a first battery connection point group and/or a first capacitor connection point group connected to the cell control circuit, and all the first batteries of the composite power energy storage unit Both the connection point group and/or the first capacitor connection point group are electrically connected to the single control circuit; or,

When the module housing is provided with at least two of the composite power energy storage monomers, all the composite power energy storage monomers may further form at least one composite power energy storage monomer group; In the composite power energy storage unit group, at least one of the composite power energy storage unit group includes at least two composite power energy storage units connected by internal wiring; the composite power energy storage unit unit is provided with The second battery connection point group and/or the second capacitor connection point group connected to the cell control circuit, the second battery connection point group and/or the second capacitor connection point group of the composite power energy storage unit group Both are electrically connected with the single control circuit.

Further, it also includes a cell control circuit for controlling the output electric energy of the composite power energy storage cell; the positive connection point and the negative connection point are electrically connected to the cell control circuit; and/or the first connection The point and the second connection point are electrically connected to the single control circuit.

The present invention also proposes a composite power energy storage device, which includes an equipment box body provided with at least one composite power energy storage module as described above.

Further, the composite power energy storage module is detachably arranged in the equipment box.

Further, the equipment box adopts a frame structure or a closed box structure.

Further, it also includes a module control circuit for controlling the output electric energy of the composite power energy storage module;

The composite power energy storage module is provided with a third battery connection point group and/or a third capacitor connection point group connected to the single control circuit, and all third batteries of the composite power energy storage module Both the connection point group and/or the third capacitor connection point group are electrically connected to the module control circuit; or,

When at least two of the composite power energy storage modules are arranged in the equipment box, at least one composite power energy storage group can be further formed between all the composite power energy storage modules; In the power energy storage group, at least one of the composite power energy storage groups includes at least two composite power energy storage modules connected by internal wiring, and the composite power energy storage group is provided with a single control circuit connected to it The fourth battery connection point group and/or the fourth capacitor connection point group of all the composite power energy storage groups are connected to the module control circuit Electric connection.

The present invention also proposes a composite power energy storage device, which is characterized in that it includes an equipment box in which at least one composite power energy storage module as described above is provided.

Further, the equipment box adopts a frame structure or a closed box structure.

The composite power energy storage module is provided with a first battery connection point group and/or a first capacitor connection point group connected to the single control circuit, and all first batteries of the composite power energy storage module Both the connection point group and/or the first capacitor connection point group are electrically connected to the module control circuit; or,

When at least two of the composite power energy storage modules are arranged in the equipment box, at least one composite power energy storage group can be further formed between all the composite power energy storage modules; In the power energy storage group, at least one of the composite power energy storage groups includes at least two composite power energy storage modules connected by internal wiring, and the composite power energy storage group is provided with a single control circuit connected to it The second battery connection point group and/or the second capacitor connection point group, all the second battery connection point groups and/or the second capacitor connection point groups of the composite power energy storage group are connected to the module control circuit Electric connection.

The present invention also proposes a control method of the compound power energy storage device as described above, which is characterized in that:

Implement control according to application scenarios and through intelligently optimized electronic control switching:

The connection relationship between the energy storage modules, and/or

The connection relationship between the energy storage monomers, and/or,

The connection relationship between the energy storage battery and the capacitor;

Furthermore, the ratio of the output energy of the battery and the capacitor is controlled, so as to realize that the battery always runs at the optimal rate and achieves the purpose of long-distance and long-life cycle use.

The beneficial effects of the present invention are:

The composite power energy storage cell of the present invention can not only reduce the volume and weight and increase the energy density by combining the battery unit and the capacitor unit, but also between the battery units, between the capacitor units, and between the battery units and the capacitor units. The output power can be combined in any combination between them. Under the condition of meeting the requirements of energy storage capacity and high-power discharge point, the output power ratio of the battery unit and the capacitor unit can be controlled according to different application scenarios, so that the battery unit is always at the best rate Run to achieve long-distance, long-life cycle use.

In the composite power energy storage monomer of the present invention, a composite energy storage cell is arranged in the monomer shell;

When the battery unit and the capacitor unit are combined together in the composite energy storage cell, not only can the volume and weight be reduced, and the energy density can be increased, but also between the battery units, between the capacitor units, and between the battery units and the capacitor units. Any combination of external power output, under the condition of meeting the requirements of energy storage capacity and high-power discharge, can control the output power ratio of the battery unit and the capacitor unit according to different application scenarios, so as to realize that the battery unit always runs at the best rate. The purpose of long-distance, long-life cycle use;

When the battery cells are arranged in the composite energy storage cell and at least two battery cells are combined together, not only can the volume and weight be reduced, but also the energy density can be improved. The battery cells can be combined in any combination to output electrical energy to meet the power consumption. Voltage and power output requirements can meet the purpose of greater energy storage capacity;

When the capacitor unit is arranged in the composite energy storage cell and at least two capacitor units are combined together, the volume and weight can be reduced, and the capacitor units can be combined to output electric energy to meet the output of electricity voltage and power. Requirements, can meet the purpose of higher power discharge;

In the same way, the composite power energy storage monomer of the present invention is provided with a positive connection point and a negative connection point corresponding to each battery or each battery pack on the monomer shell, so that each battery can be controlled by an external circuit The connection modes such as series, parallel, series-parallel hybrid and independent disconnection between or between each battery pack output electric energy to the outside, and the electric energy output mode is flexible and changeable;

By setting the first connection point and the second connection point corresponding to each capacitor or each capacitor group on the single housing, in this way, the series connection between each capacitor or each capacitor group can be controlled by an external circuit , Parallel, series-parallel hybrid connection and independent disconnection of each other to output electric energy, and the electric energy output mode is flexible and changeable;

In addition, through the external circuit, the battery and the capacitor can be controlled to output electric energy in series, parallel, series-parallel, and independent disconnection;

To sum up, the composite power energy storage unit of the present invention can reasonably choose battery power supply, capacitor power supply, or battery-capacitor combined power supply according to different electrical equipment and operating conditions of electrical equipment.

In the same way, the composite power energy storage module of the present invention, by arranging the composite power energy storage monomer in the module housing, can reasonably select battery power supply and capacitor power supply according to different electrical equipment and operating conditions of electrical equipment Or battery capacitor combined power supply.

In the same way, the composite power energy storage device of the present invention, by setting the composite power energy storage module in the equipment box, can reasonably select battery power supply, capacitor power supply or battery power supply according to different electrical equipment and operating conditions of the electrical equipment Capacitors are combined to supply power.

Description of the drawings

In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

Figure 1 is a schematic structural diagram of Embodiment 1 of a composite power energy storage device of the present invention;

Figure 2 is a schematic diagram of the structure of a composite power energy storage module;

Figure 3 is a schematic diagram of the structure of a composite power energy storage monomer;

Figure 4 is a schematic structural diagram of the first type of structure of the composite energy storage cell, specifically a schematic structural diagram when a battery unit and a capacitor unit are combined into one body;

FIG. 5 is a schematic diagram of the structure when a battery unit and a plurality of capacitor units are combined into one body;

FIG. 6 is a schematic diagram of the structure when multiple battery cells are combined with a capacitor unit;

FIG. 7 is a schematic diagram of the structure when multiple battery units and multiple capacitor units are combined into one body;

Fig. 8 is a schematic diagram of a stacked structure between two adjacent battery cells;

FIG. 9 is a schematic diagram of a laminated structure between two adjacent capacitor units;

Figure 10 is a schematic diagram of the structure of the battery unit;

Figure 11 is a schematic diagram of the structure of a capacitor unit;

FIG. 12 is a schematic diagram of the structure when a positive electrode ear and a negative electrode ear are provided on each battery unit;

FIG. 13 is a schematic diagram of the structure when a positive electrode ear and a negative electrode ear are provided on each battery cell group;

14 is a schematic diagram of the structure when the first tab and the second tab are provided on each capacitor unit;

15 is a schematic diagram of the structure when the first tab and the second tab are provided on each capacitor unit group;

16 is a schematic structural diagram of the second type of structure of the composite energy storage cell, specifically a schematic structural diagram when a battery unit is arranged in the polymer soft package;

Figure 17 is a schematic diagram of the structure when multiple battery cells are arranged in the polymer soft package;

18 is a schematic diagram of the structure when the positive ear and the negative ear are provided on each battery unit;

19 is a schematic diagram of the structure when the positive ear and the negative ear are provided on each battery cell group;

20 is a schematic structural diagram of the third type of structure of the composite energy storage cell, specifically a schematic structural diagram when a capacitor unit is arranged in the polymer soft case;

21 is a schematic diagram of the structure when multiple capacitor units are arranged in the polymer soft package;

22 is a schematic diagram of the structure when the positive ear and the negative ear are provided on each capacitor unit;

FIG. 23 is a schematic diagram of the structure when positive ears and negative ears are provided on each capacitor unit group;

24 is a schematic structural diagram of Embodiment 2 of a composite power energy storage device based on batteries and capacitors according to the present invention;

FIG. 25 is a schematic structural diagram of a composite power energy storage module based on batteries and capacitors in this embodiment;

FIG. 26 is a schematic diagram of the structure when multiple batteries are arranged in a single housing;

FIG. 27 is a schematic diagram of the structure when at least one battery pack is arranged in the single housing;

FIG. 28 is a schematic diagram of the structure when multiple capacitors are arranged in a single housing;

FIG. 29 is a schematic diagram of the structure when at least one capacitor group is arranged in a single housing;

FIG. 30 is a schematic diagram of the structure when a battery is set in the single housing;

FIG. 31 is a schematic diagram of the structure when a capacitor is provided in the single housing;

FIG. 32 is a schematic diagram of the structure when one battery and one capacitor are arranged in the single housing;

FIG. 33 is a schematic diagram of the structure when one battery and multiple capacitors are arranged in the single housing;

FIG. 34 is a schematic diagram of the structure when one battery and at least one capacitor bank are arranged in a single housing;

35 is a schematic diagram of the structure when multiple batteries and one capacitor are arranged in a single housing;

FIG. 36 is a schematic diagram of the structure when at least one battery pack and one capacitor are arranged in a single housing;

FIG. 37 is a schematic diagram of the structure when multiple batteries and multiple capacitors are arranged in a single housing;

FIG. 38 is a schematic diagram of the structure when at least one battery pack and at least one capacitor pack are arranged in a single housing.

Description of reference signs:

10-Composite energy storage battery cell; 11-Polymer soft package body; 12-Battery unit; 13-Capacitance unit; 14-Ion insulator; 15-Insulator/collector plate; 16-Battery conductive layer; 17-Battery insulation Layer; 18-capacitor conductive layer; 19-capacitor insulating layer;

120-battery unit group; 121-battery diaphragm; 122-positive electrode; 123-negative electrode; 124-positive ear; 125-negative ear;

130-capacitor unit group; 131-capacitor diaphragm; 132-first electrode; 133-second electrode; 134-first tab; 135-second tab;

140-battery pack; 141-positive; 142-negative; 143-battery; 1401-positive internal connection point; 1402-negative internal connection point;

150-capacitor group; 151-first electrode; 152-second motor; 153-capacitor; 1501-first interconnection point; 1502-second interconnection point;

20-combined power energy storage monomer; 21-monomer shell; 22-filler;

30-composite power energy storage module; 31-module housing;

40- compound power energy storage equipment; 41- equipment box.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the examples cited are not intended to limit the present invention.

Example 1

As shown in Figure 1, it is a schematic structural diagram of an embodiment of a composite power energy storage device of the present invention. The composite power energy storage equipment of this embodiment includes an equipment box 41, and at least one composite power energy storage module 30 is provided in the equipment box 41. Specifically, the equipment box 41 may adopt a frame structure or a closed box structure. The equipment box 41 of this embodiment adopts a closed box structure.

Preferably, the composite power energy storage module 30 of this embodiment is detachably arranged in the equipment cabinet 41 to facilitate replacement and maintenance of the composite power energy storage module 30.

The composite power energy storage device of this embodiment further includes a module control circuit for controlling the output power of the composite power energy storage module 30.

The composite power energy storage module 30 is provided with a third battery connection point group and/or a third capacitor connection point group connected to the single control circuit, and the third battery connection point groups of all the composite power energy storage modules 30 and / Or the third capacitor connection point group is electrically connected to the module control circuit; or,

When at least two composite power energy storage modules 30 are provided in the equipment box 41, all the composite power energy storage modules can further form at least one composite power energy storage group; among all the composite power energy storage groups, At least one composite power energy storage group includes at least two composite power energy storage modules 30 connected by internal circuits. The composite power energy storage group is provided with a fourth battery connection point group and/or a second battery connection point group connected to a single control circuit. The four-capacitor connection point group, and the fourth battery connection point group and/or the fourth capacitor connection point group of all composite power energy storage groups are electrically connected to the module control circuit.

The module control circuit can control the series connection of the battery cells 12 in the equipment box 41 to output electric energy separately, jointly or in any combination; or, control the parallel connection of the battery cells 12 in the equipment box 41 to coordinate external output Electric energy; or, the battery cells 12 in the control equipment box 41 are connected in series and parallel to meet the requirements of the power supply voltage and power; or, the battery cells 12 in the control equipment box 41 are independent or Any combination of external power output.

In the same way, the module control circuit can control the series connection of the capacitor units 13 in the equipment box 41 to output electric energy separately, collectively or any combination; or, the parallel connection between the capacitor units 13 in the control equipment box 41, Cooperate with external power output; or, connect the capacitor units 13 in the cabinet 41 of the control equipment in series and parallel to meet the requirements of power supply voltage and power at the same time; or, between the capacitor units 13 in the cabinet 41 of the control equipment Output electric energy independently or in any combination.

Of course, the module control circuit can control the battery unit 12 and the capacitor unit 13 in the equipment box 41 to independently output electric energy or jointly output electric energy; or, to control the battery unit 12 and the capacitor unit 13 in the equipment box 41 Charging between each other, etc., will not be repeated.

As shown in FIG. 2, the composite power energy storage module 30 of this embodiment includes a module housing 31 in which a composite power energy storage unit 20 is provided.

Preferably, the composite power energy storage unit 20 of this embodiment is detachably arranged in the module housing 31 to facilitate replacement and maintenance of the composite power energy storage unit 20.

Furthermore, the composite power energy storage module 30 of this embodiment further includes a single control circuit for controlling the output power of the composite power energy storage unit 20.

The composite power energy storage unit 20 is provided with a first battery connection point group and/or a first capacitor connection point group connected to the cell control circuit, and the first battery connection point groups of all composite power energy storage units 30 and / Or the first capacitor connection point group is electrically connected to the single control circuit; or,

When the module housing 31 is provided with at least two composite power energy storage monomers 20, all the composite power energy storage monomers 20 can further form at least one composite power energy storage monomer group; In the energy cell group, at least one compound power energy storage cell group includes at least two compound power energy storage cells 20 connected by internal wiring; the compound power energy storage cell group is provided with a battery connected to the cell control circuit The second battery connection point group and/or the second capacitor connection point group, the second battery connection point group and/or the second capacitor connection point group of the composite power energy storage monomer group are all electrically connected to the monomer control circuit.

The single control circuit can control the battery cells 12 in the module housing 31 to be connected in series to output electric energy separately, jointly or in any combination; or, the battery cells 12 in the control module housing 31 are connected in parallel to cooperate Externally output electric energy; or, the battery cells 12 in the control module housing 31 are connected in series, parallel, and hybrid to meet the requirements of power supply voltage and power; or, the battery cells 12 in the control module housing 31 Output electric energy independently or in any combination.

In the same way, a single control circuit can control the series connection of the capacitor units 13 in the module housing 31 to output electric energy separately, together or any combination; or, the capacitor units 13 in the control module housing 31 are connected in parallel Connected to output electric energy in coordination; or, the capacitor units 13 in the control module housing 31 are connected in series and parallel to meet the requirements of power supply voltage and power; or, the capacitors in the control module housing 31 The units 13 output electric energy independently or in any combination.

Of course, the single control circuit can control the battery unit 12 and the capacitor unit 13 in the module housing 31 to independently output electrical energy or jointly output electrical energy; or, control the battery unit 12 and the capacitor in the module housing 31 The mutual charging between the units 13 will not be repeated.

As shown in FIG. 3, the composite power energy storage unit 20 of this embodiment includes a single housing 21, and at least one composite energy storage cell 10 is provided in the monomer housing 21.

Preferably, the monomer housing 21 is provided with a flame-retardant, gas-permeable and liquid-permeable filler 22 for fixing the composite energy storage cell 10, which is used to fix the position of the composite energy storage cell 10 with an irregular shape and has a flame retardant The advantages of breathable liquid.

Further, the composite power energy storage unit 20 of this embodiment further includes a cell control circuit for controlling the output electric energy of the composite energy storage cell.

The composite energy storage cell 10 is provided with a first battery tab group and/or a first capacitor tab group; all the first battery tab groups and/or first capacitor tab groups of the composite energy storage cell 10 are Electrically connected to the cell control circuit; or,

When at least two composite energy storage cells 10 are provided in the single housing 21, all composite energy storage cells 10 can further form at least one composite energy storage cell group; all composite energy storage cell groups Wherein, at least one composite energy storage battery cell group includes at least two composite energy storage battery cells 10 connected by internal circuits, and the composite energy storage battery cell group is provided with a second battery tab group electrically connected to the battery cell control circuit and /Or the second capacitor tab group.

The battery cell control circuit can control the series connection of the battery cells 12 in the single housing 21 to output electric energy separately, collectively or any combination; or, control the parallel connection of the battery cells 12 in the single housing 21 to cooperate Externally output electric energy; or, control the serial-parallel hybrid connection between the battery cells 12 in the single housing 21 to meet the requirements of power supply voltage and power; or, control one of the battery cells 12 in the single housing 21 Output electric energy independently or in any combination.

In the same way, the cell control circuit can control the series connection of the capacitor units 13 in the single housing 21, and output electric energy separately, together or any combination; or, control the parallel connection between the capacitor units 13 in the single housing 21 Connect to coordinate external power output; or, control the serial-parallel hybrid connection between the capacitor units 13 in the monomer housing 21 to meet the requirements of power supply voltage and power; or, control the capacitors in the monomer housing 21 The units 13 output electric energy independently or in any combination.

Of course, the battery cell control circuit can control the battery unit 12 and the capacitor unit 13 in the single housing 21 to independently output electrical energy or jointly output electrical energy; or, control the battery unit 12 and the capacitor in the single housing 21 The mutual charging between the units 13 will not be repeated.

The composite energy storage cell of this embodiment can adopt a variety of structural forms.

The first type of structure is as follows:

The composite energy storage cell of this structure includes a polymer soft package body 11 and at least one battery unit 12 and at least one capacitor unit 13 which are arranged in the polymer soft package body 11 and are composited as a whole.

The battery cell 12 of this embodiment includes a battery diaphragm 121. A positive electrode 122 and a negative electrode 123 are respectively provided on both sides of the battery diaphragm 121, and battery electrolyte is provided between the positive electrode 122 and the negative electrode 123, as shown in FIG.

The capacitor unit 13 of this embodiment includes a capacitor diaphragm 131. A first electrode 132 and a second electrode 133 are respectively provided on both sides of the capacitor diaphragm 131, and a capacitor electrolyte is provided between the first electrode 132 and the second electrode 133, as shown in FIG. 11 shown.

Specifically, the battery unit 12 and the capacitor unit 13 of this embodiment are stacked together. And when the adjacent battery cells 12 and the capacitor unit 13 are connected in series or in parallel, an electronically conductive but ion-isolated ion insulator 14 is provided between the adjacent battery cell 12 and the capacitor unit 13. When the adjacent battery cell 12 and the capacitor unit 13 are independent of each other, an electronically insulated and ion-isolated insulator/current collecting plate 15 is provided between the adjacent battery cell 12 and the capacitor unit 13. By arranging an ion insulator 14 or an insulator/collecting plate 15 between the battery cell 12 and the capacitor unit 13, the battery cell 12 and the capacitor unit 13 can be connected in series, in parallel and independent of each other at the physical structure level inside the battery cell Time insulation, and output electric energy.

As shown in FIG. 4, it is a schematic diagram of the structure when a battery unit 12 and a capacitor unit 13 are combined together. According to the different connection relationship between the battery unit 12 and the capacitor unit 13, the difference between the battery unit 12 and the capacitor unit 13 An ion isolator 14 or an insulator/current collecting plate 15 is provided in between.

As shown in FIG. 5, it is a schematic diagram of the structure when a battery unit 12 and a plurality of capacitor units 13 are combined together. According to the different connection relationship between the battery unit 12 and the capacitor unit 13, the battery unit 12 and the capacitor unit 13 An ion insulator 14 or an insulator/collecting plate 15 is provided in between. The number of capacitor units 13 can be set according to actual needs, that is, the number of capacitor units 13 can be 2, 3, 4, or more than 4, etc., which will not be repeated.

As shown in FIG. 6, it is a schematic diagram of the structure when multiple battery cells 12 and a capacitor unit 13 are combined together. According to the connection relationship between the battery cells 12 and the capacitor unit 13, the battery unit 12 and the capacitor unit 13 An ion insulator 14 or an insulator/collecting plate 15 is provided in between. The number of battery cells 12 can be set according to actual requirements, that is, the number of battery cells 12 can be 2, 3, 4, or more than 4, etc., which will not be repeated.

As shown in FIG. 7, it is a schematic diagram of the structure when multiple battery cells 12 and multiple capacitor units 13 are combined together. According to the different connection relationship between battery cells 12 and capacitor units 13, An ion insulator 14 or an insulator/current collecting plate 15 is arranged between 13. The number of battery cells 12 can be set according to actual needs, that is, the number of battery cells 12 can be 2, 3, 4, and more than 4, etc., which will not be repeated; for the same reason, the number of capacitor units 13 can be based on actual needs Setting, that is, the number of capacitor units 13 can be 2, 3, 4, 4 or more, etc., which will not be repeated here. In addition, the number of battery units 12 and the number of capacitor units 13 can be arbitrarily set according to actual needs, that is, the number of battery units 12 and the number of capacitor units 13 can be equal or different, and will not be repeated here.

Specifically, the battery cells 12 in this embodiment are stacked together. And when two adjacent battery cells 12 are connected in series or in parallel, an electrically conductive but ion-isolated battery conductive layer 16 is provided between the two adjacent battery cells 12; when two adjacent battery cells 12 are When they are independent of each other, an electronically insulated and ion-isolated battery insulating layer 17 is provided between the two adjacent battery cells 12. As shown in FIG. 8, it is a schematic diagram of the structure between two adjacent battery cells 12. According to the different connection relationship between the battery cells 12, a battery conductive layer 16 or a battery can be provided between two adjacent battery cells 12 Insulation layer 17. By arranging the battery conductive layer 16 or the battery insulating layer 17 between two adjacent battery cells 12, the battery cells 12 can be insulated in series, parallel and independent of each other at the physical structure level inside the battery cells, and output to the outside. Electrical energy.

Specifically, the capacitor units 13 in this embodiment are stacked together. And when two adjacent capacitor units 13 are connected in series or in parallel, an electronically conductive but ion-isolated capacitor conductive layer 18 is provided between the adjacent two capacitor units 13; When they are independent of each other, an electronically insulated and ion-isolated capacitor insulating layer 19 is provided between the two adjacent capacitor units 13. As shown in FIG. 9, it is a schematic diagram of the structure between two adjacent capacitor units 13. According to the different connection relationship between the capacitor units 13, a capacitor conductive layer 18 or a capacitor can be provided between two adjacent capacitor units 13 Insulation layer 19. By arranging the capacitive conductive layer 18 or the capacitive insulating layer 19 between two adjacent capacitor units 13, the series, parallel connection and isolation between the capacitor units 13 can be realized at the physical structure level inside the cell, and the external output Electrical energy.

Specifically, each battery unit 12 may also be provided with a positive electrode ear 124 and a negative electrode ear 125. In this way, it can be electrically connected to the positive electrode ear 124 and the negative electrode ear 125 of each battery unit 12 through the cell control circuit. The battery cell control circuit realizes the series connection, parallel connection, series-parallel hybrid connection between the battery cells 12 and independent external electric energy output, as shown in FIG. 12. The positive lug 124 and the negative lug 125 arranged on the battery unit 12 constitute the first battery lug group.

When there are at least two battery cells 12, all the battery cells 12 can be divided into at least one battery cell group 120, and among all the battery cell groups 120, at least one battery cell group 120 includes at least two battery cells 12. When the number of battery cell groups 120 is greater than or equal to two, the number of battery cells 12 contained in each battery cell group 120 may be equal or unequal. After all the battery cells 12 in the battery cell group 120 are connected according to a preset connection manner, a positive lug 124 and a negative lug 125 are provided. In this way, the battery cell control circuit can be electrically connected to the positive ear 124 and the negative ear 125 of each battery cell group 120, and the battery cell group 120 can be connected in series, parallel, and series-parallel through the battery cell control circuit. And output electric energy independently of each other, as shown in Figure 13. Specifically, when the number of battery cells 12 in the battery cell group 120 is greater than or equal to 2, the battery conductive layer 16 may be provided between two adjacent battery cells belonging to the same battery cell group 120, which may be inside the battery cell. At the physical structure level, all battery cells 12 belonging to the same battery cell group 120 are connected in series, parallel, and series-parallel, which will not be repeated. The positive lug 124 and the negative lug 125 disposed on the battery unit group 120 constitute the second battery lug group.

Specifically, each capacitor unit 13 may be provided with a first tab 134 and a second tab 135. In this way, it can be connected to the first tab 134 and the first tab 134 and the second tab 135 of each capacitor unit 13 through the cell control circuit. The second tab 135 is electrically connected, and the series connection, parallel connection, series-parallel hybrid connection between the capacitor units 13 and independent external electric energy output are realized through the cell control circuit, as shown in FIG. 14. The first tab 134 and the second tab 135 arranged on the capacitor unit 13 constitute the first capacitor tab group.

When the capacitor unit 13 includes at least two capacitor units, all capacitor units 13 can be divided into at least two capacitor unit groups 130, and among all capacitor unit groups 130, at least one capacitor unit group 130 includes at least two capacitor units 13 . When the number of capacitor unit groups 130 is greater than or equal to 2, the number of capacitor units 13 included in each capacitor unit group 130 may be equal or unequal. After all the capacitor units 13 in the capacitor unit group 130 are connected according to a preset connection mode, a first tab 134 and a second tab 135 are provided. In this way, the first tab 134 and the second tab 135 of each capacitor unit group 130 can be electrically connected through the cell control circuit, and the series, parallel, and parallel connections between the capacitor unit groups 130 can be realized by the cell control circuit. Serial-parallel hybrid and independent external electrical output, as shown in Figure 15. Specifically, when the number of capacitor units 13 in the capacitor unit group 130 is greater than or equal to 2, the battery conductive layer 16 can be provided between two adjacent battery units belonging to the same capacitor unit group 130, and the battery conductive layer 16 can be located inside the battery cell. The physical structure level realizes the serial, parallel, and serial-parallel hybrid connection between all capacitor units 13 belonging to the same capacitor unit group 130, which will not be repeated. The first tab 134 and the second tab 135 arranged on the capacitor unit group 130 constitute the second capacitor tab group.

The first type of structure of the composite energy storage cell, by combining the battery cell 12 and the capacitor unit 13, not only can reduce the volume and weight, increase the energy density, but also can be used in the internal physical structure of the cell and through The battery cell control circuit realizes that the battery cells 12, the capacitor units 13, and the battery cells 12 and the capacitor units 13 can be combined to output electric energy. Under the conditions of meeting the energy storage capacity and high-power discharge requirements, it can be based on different The application scenarios control the ratio of the output electric energy of the battery unit 12 and the capacitor unit 13, so as to realize that the battery unit 12 always runs at the optimal rate, achieving the purpose of long-distance, long-life cycle use.

The second type of structure:

The composite energy storage cell 10 of the present structure includes a polymer soft package body 11 and at least one battery cell 12 arranged in the polymer soft package body 11 or at least two battery cells 12 integrated into one body. The battery cell 12 of this embodiment includes a battery separator 121, a positive electrode 122 and a negative electrode 123 are respectively provided on both sides of the battery separator 121, and a battery electrolyte is provided between the positive electrode 122 and the negative electrode 123.

As shown in FIG. 16, it is a schematic diagram of the structure when a battery unit 12 is arranged in the polymer soft package body 11.

As shown in Figure 17, it is a schematic diagram of the structure when multiple battery cells 12 are combined together. The number of battery cells 12 can be set according to actual needs, that is, the number of battery cells 12 can be 2, 3, 4, and 4. The above and so on will not be exhausted. The battery cells 12 are stacked together. And when two adjacent battery cells 12 are connected in series or in parallel, an electrically conductive but ion-isolated battery conductive layer 16 is provided between the two adjacent battery cells 12; when two adjacent battery cells 12 are When they are independent of each other, an electronically insulated and ion-isolated battery insulating layer 17 is provided between the two adjacent battery cells 12. A battery conductive layer 16 or a battery insulating layer 17 may be provided between two adjacent battery cells 12 according to the different connection relationship between the battery cells 12. By arranging the battery conductive layer 16 or the battery insulating layer 17 between two adjacent battery cells 12, the battery cells 12 can be insulated in series, parallel and independent of each other at the physical structure level inside the battery cells, and output to the outside. Electrical energy.

Specifically, each battery unit 12 may also be provided with a positive electrode ear 124 and a negative electrode ear 125. In this way, it can be electrically connected to the positive electrode ear 124 and the negative electrode ear 125 of each battery unit 12 through the cell control circuit. The battery cell control circuit realizes the series connection, parallel connection, series-parallel hybrid connection between the battery cells 12 and independent external electric energy output, as shown in FIG. 18. The positive lug 124 and the negative lug 125 arranged on the battery unit 12 constitute the first battery lug group.

When there are at least two battery cells 12, all the battery cells 12 can be divided into at least one battery cell group 120, and among all the battery cell groups 120, at least one battery cell group 120 includes at least two battery cells 12. When the number of battery cell groups 120 is greater than or equal to two, the number of battery cells 12 contained in each battery cell group 120 may be equal or unequal. After all the battery cells 12 in the battery cell group 120 are connected according to a preset connection manner, a positive lug 124 and a negative lug 125 are provided. In this way, the positive ear 124 and the negative ear 125 of each battery cell group 120 can be electrically connected through an external circuit, and the series, parallel, series-parallel hybrid and mutual connection between the battery cell groups 120 can be realized through the external circuit. Output electric energy independently, as shown in Figure 19. Specifically, when the number of battery cells 12 in the battery cell group 120 is greater than or equal to 2, the battery conductive layer 16 may be provided between two adjacent battery cells belonging to the same battery cell group 120, which may be inside the battery cell. At the physical structure level, all battery cells 12 belonging to the same battery cell group 120 are connected in series, parallel, and series-parallel, which will not be repeated. The positive lug 124 and the negative lug 125 disposed on the battery unit group 120 constitute the second battery lug group.

The composite energy storage cell of this second type of structure can not only reduce the volume and weight and increase the energy density by combining multiple battery cells 12 together, but also can be used on the internal physical structure level of the cell and through external The circuit realizes that the battery cells 12 can be combined to output electric energy to the outside, and the energy storage capacity is increased under the condition that the energy storage capacity and the discharge power requirements are met.

The third type of structure:

The composite energy storage cell 10 in this structure includes a polymer soft package body 11 and one capacitor unit 13 arranged in the polymer soft package body 11 or at least two capacitor units 13 combined into one body. The capacitor unit 13 includes a capacitor diaphragm 131. A first electrode 132 and a second electrode 133 are respectively provided on both sides of the capacitor diaphragm 131, and a capacitor electrolyte is provided between the first electrode 132 and the second electrode 133.

As shown in FIG. 20, it is a schematic diagram of the structure when a capacitor unit 13 is provided in the polymer soft body 11.

As shown in FIG. 21, it is a schematic diagram of the structure when multiple capacitor units 13 are combined together. The number of capacitor units 13 can be set according to actual needs, that is, the number of capacitor units 13 can be 2, 3, 4, and 4. The above and so on will not be exhausted. Specifically, the capacitor units 13 in this embodiment are stacked together. And when two adjacent capacitor units 13 are connected in series or in parallel, an electronically conductive but ion-isolated capacitor conductive layer 18 is provided between the adjacent two capacitor units 13; When they are independent of each other, an electronically insulated and ion-isolated capacitor insulating layer 19 is provided between the two adjacent capacitor units 13. According to the different connection relationship between the capacitor units 13, a capacitor conductive layer 18 or a capacitor insulating layer 19 may be provided between two adjacent capacitor units 13. By arranging the capacitive conductive layer 18 or the capacitive insulating layer 19 between two adjacent capacitor units 13, the series, parallel connection and isolation between the capacitor units 13 can be realized at the physical structure level inside the cell, and the external output Electrical energy.

Specifically, each capacitor unit 13 may be provided with a first tab 134 and a second tab 135. In this way, it can be connected to the first tab 134 and the second tab 134 of each capacitor unit 13 through an external circuit. The two pole ears 135 are electrically connected, and the series connection, parallel connection, series-parallel hybrid connection between the capacitor units 13 and independent external electric energy output are realized through an external circuit, as shown in FIG. 22. The first tab 134 and the second tab 135 arranged on the capacitor unit 13 constitute the first capacitor tab group.

When the capacitor unit 13 includes at least two capacitor units, all capacitor units 13 can be divided into at least two capacitor unit groups 130, and among all capacitor unit groups 130, at least one capacitor unit group 130 includes at least two capacitor units 13 . When the number of capacitor unit groups 130 is greater than or equal to 2, the number of capacitor units 13 included in each capacitor unit group 130 may be equal or unequal. After all the capacitor units 13 in the capacitor unit group 130 are connected according to a preset connection mode, a first tab 134 and a second tab 135 are provided. In this way, it can be electrically connected to the first tab 134 and the second tab 135 of each capacitor unit group 130 through an external circuit, and the series, parallel, and series-parallel between the capacitor unit groups 130 can be realized through the external circuit. Hybrid and independent external power output, as shown in Figure 23. Specifically, when the number of capacitor units 13 in the capacitor unit group 130 is greater than or equal to 2, the battery conductive layer 16 can be provided between two adjacent battery units belonging to the same capacitor unit group 130, and the battery conductive layer 16 can be located inside the battery cell. The physical structure level realizes the serial, parallel, and serial-parallel hybrid connection between all capacitor units 13 belonging to the same capacitor unit group 130, which will not be repeated. The first tab 134 and the second tab 135 arranged on the capacitor unit group 130 constitute the second capacitor tab group.

The composite energy storage cell of the third type of structure can not only reduce the volume and weight and increase the energy density by combining multiple capacitor units 13 together, but also can be used on the internal physical structure level of the cell and through external The circuit realizes that the capacitor units 13 can be combined in any combination to output electric energy, and under the condition that the energy storage capacity and the discharge power requirements are met, the high-power discharge capability can be effectively improved.

It can be seen that the composite power energy storage cell 20 of this embodiment can be composed of composite energy storage cells in the first type of structure, the second type of structure, or the third type of structure. Of course, the first type of structure can also be used. It is composed of any two types of composite energy storage cells in the first type of structure, the second type of structure, and the third type of structure; it can also use the first type of structure, the second type of structure and the third type of structure at the same time. The composition of similar composite energy storage cells, that is, the composite power energy storage monomer 20 can have multiple types, which will not be repeated.

Of course, when the composite power energy storage unit 20 is used to form the composite power energy storage module 30, all the composite power energy storage units 20 in the composite power energy storage module 30 can be composed of the same type. Of course, the composite power energy storage unit The module 30 may also be composed of different types of composite power energy storage monomers 20, that is, the composite power energy storage module 30 has multiple types, which will not be repeated.

Similarly, when the composite power energy storage module 30 is used to form the composite power energy storage device 40, all the composite power energy storage modules 30 in the composite power energy storage device 40 can be composed of the same type. Of course, the composite power energy storage device 40 can also be composed of different types of composite power energy storage modules 30, that is, the composite power energy storage device 40 has multiple types, which will not be repeated.

In addition, in the actual application process, the composite power energy storage unit 20 can be used as a power supply device alone, that is, the composite power energy storage unit 20 does not need to be constructed as a composite power energy storage module 30 and a composite power energy storage device 40. Separately as a power supply device to output electrical energy to the outside.

In the same way, in the actual application process, the composite power energy storage module 30 can also be used as a power supply device alone, that is, the composite power energy storage unit 30 does not need to be constructed as a composite power energy storage device, but can also be used as a power supply device to output electric energy. .

Whether the composite power storage unit 20 is used alone as a power supply device, the composite power storage module 30 is used alone as a power supply device, and the composite power storage device is used as a power supply device, all are in a smart intelligent control device Under the control of the system and the system, the smart smart device controls the system according to the power demand required by the application scenario, uniformly deploys the battery unit 12 alone, the capacitor unit 13 alone, or the battery unit 12 and the capacitor unit 13 according to the corresponding magnification The relationship between joint power supply, etc. will not be repeated. In addition, the smart smart device control system can also control the battery unit 12 and the capacitor unit 13 to be connected in series or in parallel with each other according to the remaining power of the battery unit 12 and the capacitor unit 13 to realize mutual charging, which will not be repeated.

Example 2

As shown in FIG. 24, it is a schematic structural diagram of an embodiment of a battery and capacitor-based composite power energy storage device of the present invention. The composite power energy storage device based on batteries and capacitors in this embodiment includes an equipment cabinet 41 in which at least one composite power energy storage module 30 is provided. Specifically, the equipment box 41 may adopt a frame structure or a closed box structure. The equipment box 41 of this embodiment adopts a closed box structure.

The composite power energy storage module 30 is provided with a first battery connection point group and/or a first capacitor connection point group connected to a single control circuit, and the first battery connection point groups of all the composite power energy storage modules 30 and / Or the first capacitor connection point group is electrically connected to the module control circuit; or,

When at least two composite power energy storage modules 30 are provided in the equipment box 41, all the composite power energy storage modules can further form at least one composite power energy storage group; among all the composite power energy storage groups, At least one composite power energy storage group includes at least two composite power energy storage modules 30 connected by internal circuits. The composite power energy storage group is provided with a second battery connection point group and/or a second battery connection point group connected to a single control circuit. Two capacitor connection point groups, the second battery connection point group and/or the second capacitor connection point group of all composite power energy storage groups are electrically connected to the module control circuit.

The module control circuit can control the series connection of the batteries 143 in the equipment box 41 to output electric energy separately, jointly or in any combination; or, control the parallel connection of the batteries 143 in the equipment box 41 to output electric energy in coordination; Or, the batteries 143 in the control equipment box 41 are connected in series and parallel to meet the requirements of power supply voltage and power at the same time; or, the batteries 143 in the control equipment box 41 are independently or in any combination for external output. Electrical energy.

In the same way, the module control circuit can control the series connection of the capacitors 153 in the equipment box 41 to output electric energy separately, together or any combination; or, the parallel connection of the capacitors 153 in the control equipment box 41 to cooperate with the external Output electric energy; or, the capacitors 153 in the control equipment box 41 are connected in series, parallel, and mixed to meet the requirements of power supply voltage and power; or, the capacitors 153 in the control equipment box 41 are independent or arbitrary. The combination outputs electric energy to the outside.

Of course, the module control circuit can control the battery 143 and the capacitor 153 in the equipment box 41 to independently output electric energy or jointly output electric energy; or, control the battery 143 and the capacitor 153 in the equipment box 41 to charge each other Wait, no longer tired.

As shown in FIG. 25, the battery and capacitor-based composite power energy storage module 30 of this embodiment includes a module housing 31 in which a composite power energy storage unit 20 is provided.

Furthermore, the composite power energy storage module 30 of this embodiment further includes a single control circuit for controlling the output power of the composite power energy storage unit 20. The positive connection point 211 and the negative connection point 212 are electrically connected to the cell control circuit; and/or the first connection point 213 and the second connection point 214 are electrically connected to the cell control circuit.

The single control circuit can control the battery 143 in the module housing 31 to be connected in series to output electric energy separately, jointly or in any combination; or, to control the battery 143 in the module housing 31 to be connected in parallel to coordinate external output Electric energy; or, the batteries 143 in the control module housing 31 are connected in series, parallel, and mixed to meet the requirements of power supply voltage and power; or, the batteries 143 in the control module housing 31 are independent or independent Any combination of external power output.

In the same way, a single control circuit can control the series connection of the capacitors 153 in the module housing 31 to output electric energy separately, together or any combination; or, the control module housing 31 can be connected in parallel between the capacitors 153, Cooperate to output electric energy; or, the capacitors 153 in the control module housing 31 are connected in series, parallel and mixed to meet the requirements of power supply voltage and power; or, between the capacitors 153 in the control module housing 31 Output electric energy independently or in any combination.

Of course, the single control circuit can control the battery 143 and the capacitor 153 in the module housing 31 to output electric energy independently or jointly; or, to control the battery 143 and the capacitor 153 in the module housing 31 Mutual charging, etc. will not be repeated.

The composite power energy storage unit 20 based on batteries and capacitors in this embodiment includes a unit housing 21 in which at least one battery 143 and/or capacitor 153 is provided. Preferably, a flame-retardant, gas-permeable and liquid-permeable filler 22 filled between the batteries 143, between the capacitors 153, and between the batteries 143 and the capacitor 153 is provided in the single housing 21 for fixing the battery 143 and the capacitor.

A positive connection point 211 and a negative connection point 212 are respectively provided on the cell housing 21 and the positive electrode 141 and the negative electrode 142 of each battery 143. The positive connection point 211 is electrically connected to the corresponding positive electrode 141, and the negative connection point 212 corresponds to The negative electrodes 142 are electrically connected, as shown in FIG. 3. In this way, the connection mode between each battery 143 can be controlled, so that each battery 143 uses series, parallel, series-parallel hybrid connection, and independent disconnection to output electric energy.

When the battery 143 includes at least two batteries, all the batteries 143 are divided into at least one battery pack 140, among all the battery packs 140, at least one battery pack 140 includes at least two batteries 143; among all the batteries 143 in the battery pack 140 A positive internal connection point 1401 and a negative internal connection point 1402 are provided after being connected in a preset connection manner. A positive connection point 211 and a negative connection point 212 are respectively provided on the cell housing 21 and the positive internal connection point 1401 and the negative internal connection point 1402 of each battery pack, and the positive connection point 211 is between the corresponding positive internal connection point 1401 Electrically connected, the negative electrode connection point 212 is electrically connected to the corresponding negative electrode internal connection point 1402, as shown in FIG. 4. In this way, the connection mode between each battery pack 140 can be controlled so that each battery pack 140 uses series, parallel, series-parallel hybrid connection, and independent disconnection to output electric energy. The batteries 143 can be connected in series and in parallel in the single housing 21 in a preset manner, which will not be repeated here.

A first connection point 213 and a second connection point 214 are respectively provided on the single housing 21 and the first electrode 151 and the second electrode 152 of each capacitor 153. The first connection point 213 and the corresponding first electrode 151 Electrically connected, the second connection point 214 is electrically connected to the corresponding second electrode 152, as shown in FIG. 5. In this way, the connection mode between each capacitor 153 can be controlled, so that each capacitor 153 uses series, parallel, series-parallel hybrid connection, and independent disconnection to output electric energy.

When the capacitor 153 includes at least two capacitors, all capacitors 153 are divided into at least one capacitor group 150. Among all capacitor groups 150, at least one capacitor group 150 includes at least two capacitors 153; among all capacitors 153 in the capacitor group 150 A first interconnection point 1501 and a second interconnection point 1502 are provided after being connected in a preset connection manner. A first connection point 213 and a second connection point 214 are respectively provided on the single housing 21 and the first internal connection point 1501 and the second internal connection point 1502 of each capacitor group 150. The first connection point 213 and the corresponding first connection point 213 An internal connection point 1501 is electrically connected, and the second connection point 214 is electrically connected to a corresponding second internal connection point 1502, as shown in FIG. 6. In this way, the connection mode between each capacitor group 150 can be controlled, so that each capacitor group 150 uses series, parallel, series-parallel hybrid connection and independent disconnection to output electric energy. The capacitors 153 can be connected in series and parallel in the single housing 21 in a preset manner, which will not be repeated here.

The combination between the battery 143 and the capacitor 153 in the single housing 21 can be in various ways:

The first method: only batteries 143 are provided in the single housing 21, as shown in FIGS. 26 and 27, which are schematic diagrams of the structure when multiple batteries 143 are provided in the single housing 21. As shown in FIG. 30, it is a schematic diagram of the structure when only one battery 143 is provided in the single housing, and the description is not repeated. Specifically, the number of batteries 143 provided in the single housing 21 can be set according to actual electricity demand, that is, the number of batteries 143 can be one, two, three, four, or more, which will not be repeated here. .

The second method: only the capacitor 153 is provided in the single housing 21, as shown in FIG. 28 and FIG. 29, is a schematic diagram of the structure when a plurality of capacitors 153 are provided in the single housing 21. As shown in FIG. 31, it is a schematic diagram of the structure when only one capacitor 153 is provided in the single housing, which is not repeated here. Specifically, the number of capacitors 153 provided in the single housing 21 can be set according to the actual electricity demand, that is, the number of capacitors 153 can be 1, 2, 3, 4, or more, which will not be repeated here. .

The third method: the battery 143 and the capacitor 153 can be provided in the single housing 21 at the same time.

As shown in FIG. 32, it is a schematic diagram of the structure when a battery 143 and a capacitor 153 are arranged in the single housing 21;

As shown in Figure 33 and Figure 34, it is a schematic diagram of the structure when a battery 143 and a plurality of capacitors 153 are arranged in the single housing 21. Specifically, the number of capacitors 153 provided in the single housing 21 can be based on actual electricity consumption. It needs to be set, that is, the number of capacitors 153 can be one, two, three, four, or more than four. Of course, multiple capacitors 153 are also divided into several capacitor groups 150, which will not be repeated here.

As shown in Figs. 35 and 36, it is a schematic diagram of the structure when multiple batteries 143 and one capacitor 153 are provided in the single housing 21. Specifically, the number of batteries 143 provided in the single housing 21 can be based on actual electricity consumption. Demand setting, that is, the number of batteries 143 can be one, two, three, four, or more than four. Of course, multiple batteries 143 are also divided into several battery packs 140, which will not be repeated.

As shown in FIG. 37 and FIG. 38, it is a schematic diagram of the structure when a plurality of batteries 143 and a plurality of capacitors 153 are arranged in the single housing 21. Specifically, the number of batteries 143 provided in the single housing 21 can be set according to actual electricity demand, that is, the number of batteries 143 can be 1, 2, 3, 4, or more than 4, of course, multiple The batteries 143 are also divided into several battery packs 140, which will not be repeated here. Specifically, the number of capacitors 153 provided in the single housing 21 can be set according to the actual electricity demand, that is, the number of capacitors 153 can be 1, 2, 3, 4, or more than 4, of course, multiple The capacitors 153 are also divided into several capacitor groups 150, which will not be repeated here. In addition, a plurality of batteries 143 and a capacitor group 150, a battery group 140 and a plurality of capacitors 153, etc., may also be provided in the single housing 21, which will not be repeated.

Specifically, when the battery 143 and the capacitor 153 are simultaneously arranged in the single housing 21, the external circuit can be used to control the battery 143, the capacitor 153, and the battery 143 and the capacitor 153 to adopt series, parallel or series/parallel mixing. The way of connection is connected, and the external electric energy is output separately, jointly or in any combination, which will not be repeated.

It can be seen that the composite power energy storage unit based on battery and capacitor in this embodiment has multiple combinations. When the composite power energy storage device unit 20 is used to form the composite power energy storage module 30, the composite power energy storage module All the composite power energy storage monomers 20 in 30 can be composed of the same form. Of course, the composite power energy storage module 30 can also be composed of different forms of composite power energy storage monomers 20, that is, the composite power energy storage module 30 has There are many types, no longer repeat them.

Similarly, when the composite power energy storage module 30 is used to form the composite power energy storage device 40, all the composite power energy storage modules 30 in the composite power energy storage device 40 can be composed of the same form. Of course, the composite power energy storage device 40 can also be composed of different forms of composite power energy storage modules 30, that is, the composite power energy storage device 40 has multiple types, which will not be repeated.

In addition, in actual use, the battery and capacitor-based composite power energy storage unit 20 of this embodiment can be used as a power supply device alone, that is, the composite power energy storage unit 20 does not need to be constructed as a composite power energy storage module 30 and a composite power storage unit. The power energy storage device 40 can also be used as a power supply device to output electrical energy to the outside.

Similarly, in actual application, the battery and capacitor-based composite power energy storage module 30 of this embodiment can also be used as a power supply device alone, that is, the composite power energy storage unit 30 does not need to be constructed as a composite power energy storage device. It can be used as a power supply device to output electric energy.

Whether the composite power storage unit 20 is used alone as a power supply device, the composite power storage module 30 is used alone as a power supply device, and the composite power storage device is used as a power supply device, all are in a smart intelligent control device According to the power requirements required by the application scenario, the smart smart device controls the system to uniformly deploy the battery 143 alone, the capacitor 153 alone, or the battery 143 and the capacitor 153 in accordance with the corresponding ratio relationship. , No longer tired. In addition, the smart smart device control system can also control the battery 143 and the capacitor 153 to be connected in series or in parallel with each other according to the remaining power of the battery 143 and the capacitor 153 to realize mutual charging, which will not be repeated.

Specifically, this embodiment is based on the control method of a battery and capacitor composite power energy storage device,

According to the application scenario and through intelligent optimization of electronic control switch implementation control:

The connection relationship between the battery and capacitor-based composite power energy storage module 30, and/or

Based on the connection relationship between the battery and the capacitor-based composite power energy storage unit 20, and/or,

The connection relationship between the energy storage battery 143 and the capacitor 153;

Furthermore, the ratio of the output energy of the battery 143 and the capacitor 153 is controlled, so as to realize that the battery 143 always runs at an optimal rate and achieves long-distance, long-life cycle use.

The above-mentioned embodiments are only preferred embodiments for fully explaining the present invention, and the protection scope of the present invention is not limited thereto. The equivalent substitutions or changes made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

A composite power energy storage battery cell, which is characterized in that it comprises a polymer soft package body, and at least one battery unit and at least one capacitor unit which are arranged in the polymer soft package body and composited as a whole.
The composite power energy storage cell according to claim 1, characterized in that:

Each battery unit is provided with a positive ear and a negative ear; or,

When the battery unit includes at least two battery units, all the battery units can be further combined into at least one battery unit group, and among all the battery unit groups, at least one battery unit group includes at least two connected in parallel Or battery cells connected in series; the battery cell group is provided with a positive ear and a negative ear.
The composite power energy storage cell according to claim 1, characterized in that:

Each of the capacitor units is provided with a first tab and a second tab; or,

When the capacitor unit includes at least two, all of the capacitor units can be further combined into at least one capacitor unit group, and among all the capacitor unit groups, at least one of the capacitor unit groups includes at least two capacitor units connected in parallel. Or series-connected capacitor units; the capacitor unit group is provided with a first tab and a second tab.
The composite power energy storage battery cell according to any one of claims 1-3, characterized in that:

The battery unit includes a battery diaphragm, a positive electrode and a negative electrode are respectively provided on both sides of the battery diaphragm, and a battery electrolyte is provided between the positive electrode and the negative electrode;

The capacitor unit includes a capacitor diaphragm, a first electrode and a second electrode are respectively provided on both sides of the capacitor diaphragm, and a capacitor electrolyte is provided between the first electrode and the second electrode.
The composite power energy storage cell according to claim 4, characterized in that:

The battery unit and the capacitor unit are stacked together;

When the adjacent battery cell and the capacitor unit are connected in series or in parallel, an electronically conductive but ion-isolated ion insulator is provided between the adjacent battery cell and the capacitor unit;

When the adjacent battery cells and the capacitor cells are independent of each other, an electronically insulated and ion-isolated insulator/current collecting plate is provided between the adjacent battery cells and the capacitor cells.
The composite power energy storage cell according to claim 4, characterized in that:

The battery cells are stacked together;

When two adjacent battery cells are connected in series or in parallel, an electronically conductive but ion-isolated battery conductive layer is provided between the two adjacent battery cells;

When two adjacent battery cells are independent of each other, an electronically insulated and ion-isolated battery insulating layer is provided between the two adjacent battery cells.
The composite power energy storage cell according to claim 4, characterized in that:

The capacitor units are stacked together;

When two adjacent capacitor units are connected in series or in parallel, an electronically conductive but ion-isolated capacitor conductive layer is provided between the two adjacent capacitor units;

When two adjacent capacitor units are independent of each other, an electronically insulated and ion-isolated capacitor insulating layer is provided between the two adjacent capacitor units.
A composite power energy storage monomer, which is characterized in:

Comprising a single housing, at least one composite energy storage battery cell is arranged in the single housing;

The composite energy storage cell adopts the composite power energy storage cell according to any one of claims 1-7; or,

The composite energy storage battery cell includes a polymer soft package body and one battery unit or at least two battery units combined into one body arranged in the polymer soft package body; or,

The composite energy storage cell includes a polymer soft package body and one capacitor unit or at least two capacitor units integrated into one body arranged in the polymer soft package body.
The composite power energy storage monomer according to claim 8, characterized in that:

The battery unit includes a battery diaphragm, a positive electrode and a negative electrode are respectively provided on both sides of the battery diaphragm, and a battery electrolyte is provided between the positive electrode and the negative electrode;

The capacitor unit includes a capacitor diaphragm, a first electrode and a second electrode are respectively provided on both sides of the capacitor diaphragm, and a capacitor electrolyte is provided between the first electrode and the second electrode.
The composite power energy storage monomer according to claim 8, characterized in that: the monomer shell is provided with a flame-retardant, gas-permeable and liquid-permeable filler used to fix the composite energy storage cell.
The composite power energy storage monomer according to any one of claims 8-10, characterized in that:

It also includes a cell control circuit for controlling the output electric energy of the composite energy storage cell;

The composite energy storage cell is provided with a first battery tab group and/or a first capacitor tab group; all the first battery tab groups and/or first capacitor tabs of the composite energy storage cell The groups are electrically connected to the battery control circuit; or,

When at least two of the composite energy storage cells are provided in the single housing, at least one composite energy storage cell group can be further formed between all the composite energy storage cells; all the composite energy storage cells In the energy battery cell group, at least one of the composite energy storage battery cell group includes at least two composite energy storage battery cells connected by internal circuits, and the composite energy storage battery cell group is provided with the battery cell control circuit. The connected second battery tab group and/or second capacitor tab group.
A composite power energy storage monomer, which is characterized in:

Comprising a single housing in which at least one battery and/or at least one capacitor is arranged;

A positive electrode connection point and a negative electrode connection point are respectively provided on the single housing and the positive electrode and the negative electrode of each battery. The positive electrode connection point is electrically connected to the corresponding positive electrode, and the negative electrode connection point is connected to Electrical connection between the corresponding negative electrodes; or,

When the battery includes at least two batteries, all the batteries may further form at least one battery pack, and among all the battery packs, at least one of the battery packs includes at least two batteries connected in series or in parallel; The battery pack is provided with a positive electrode internal connection point and a negative electrode internal connection point; the single housing is provided with a positive electrode connection point and a negative electrode connection point corresponding to the positive electrode internal connection point and the negative electrode internal connection point of each battery pack. A connection point, an electrical connection between the positive connection point and the corresponding positive internal connection point, and an electrical connection between the negative connection point and the corresponding negative internal connection point;

A first connection point and a second connection point are respectively provided on the single housing and the first electrode and the second electrode of each of the capacitors, and the first connection point is between the corresponding first electrode Electrically connected, the second connection point is electrically connected to the corresponding second electrode; or,

When the capacitors include at least two, all the capacitors may further form at least one capacitor group, and among all the capacitor groups, at least one of the capacitor groups includes at least two capacitors connected in series or in parallel; A first internal connection point and a second internal connection point are provided on the capacitor group; the first internal connection point and the second internal connection point of each of the capacitor groups are respectively provided on the single housing A first connection point and a second connection point, the first connection point is electrically connected to the corresponding first interconnection point, and the second connection point is electrically connected to the corresponding second interconnection point. connection.
The composite power energy storage monomer according to claim 12, characterized in that: the monomer housing is provided with flame-retardant and air-permeable materials filled between the batteries, between the capacitors, and between the batteries and the capacitors. Liquid-permeable filling body.
A composite power energy storage module, which is characterized in:

It comprises a module housing in which at least one composite power energy storage monomer according to any one of claims 8-11 is arranged.
The composite power energy storage module according to claim 14, wherein:

The composite power energy storage unit is detachably arranged in the module housing.
The composite power energy storage module according to claim 14 or 15, characterized in that:

It also includes a unit control circuit for controlling the output electric energy of the composite power energy storage unit;

The composite power energy storage unit is provided with a first battery connection point group and/or a first capacitor connection point group connected to the cell control circuit, and all the first batteries of the composite power energy storage unit Both the connection point group and/or the first capacitor connection point group are electrically connected to the single control circuit; or,

When the module housing is provided with at least two of the composite power energy storage monomers, all the composite power energy storage monomers may further form at least one composite power energy storage monomer group; In the composite power energy storage unit group, at least one of the composite power energy storage unit group includes at least two composite power energy storage units connected by internal wiring; the composite power energy storage unit unit is provided with The second battery connection point group and/or the second capacitor connection point group connected to the cell control circuit, the second battery connection point group and/or the second capacitor connection point group of the composite power energy storage unit group Both are electrically connected with the single control circuit.
A composite power energy storage module, which is characterized in:

It includes a module housing, and at least one composite power energy storage monomer according to claim 12 or 13 is arranged in the module housing.
The composite power energy storage module according to claim 17, wherein:

The composite power energy storage unit is detachably arranged in the module housing.
The composite power energy storage module according to claim 17 or 18, characterized in that:

It also includes a cell control circuit for controlling the output electric energy of the composite power storage cell; the positive connection point and the negative connection point are electrically connected to the cell control circuit; and/or the first connection point and The second connection point is electrically connected to the single control circuit.
A composite power energy storage equipment, characterized in that:

It includes an equipment box, in which is provided at least one composite power energy storage module according to any one of claims 14-16.
The composite power energy storage device of claim 20, wherein:

The composite power energy storage module is detachably arranged in the equipment box.
The composite power energy storage device according to claim 21, wherein:

The equipment box adopts a frame structure or a closed box structure.
The composite power energy storage device according to any one of claims 21-22, characterized in that:

It also includes a module control circuit for controlling the output electric energy of the composite power energy storage module;

The composite power energy storage module is provided with a third battery connection point group and/or a third capacitor connection point group connected to the single control circuit, and all third batteries of the composite power energy storage module Both the connection point group and/or the third capacitor connection point group are electrically connected to the module control circuit; or,

When at least two of the composite power energy storage modules are arranged in the equipment box, at least one composite power energy storage group can be further formed between all the composite power energy storage modules; In the power energy storage group, at least one of the composite power energy storage groups includes at least two composite power energy storage modules connected by internal wiring, and the composite power energy storage group is provided with a single control circuit connected to it The fourth battery connection point group and/or the fourth capacitor connection point group of all the composite power energy storage groups are connected to the module control circuit Electric connection.
A composite power energy storage device, characterized in that it comprises an equipment box, and at least one composite power energy storage module according to any one of claims 17-19 is installed in the device box.
The composite power energy storage device according to claim 24, wherein:

The composite power energy storage module is detachably arranged in the equipment box.
The composite power energy storage device according to claim 24, wherein:

The equipment box adopts a frame structure or a closed box structure.
The composite power energy storage device according to any one of claims 24-26, characterized in that:

It also includes a module control circuit for controlling the output electric energy of the composite power energy storage module;

The composite power energy storage module is provided with a first battery connection point group and/or a first capacitor connection point group connected to the single control circuit, and all first batteries of the composite power energy storage module Both the connection point group and/or the first capacitor connection point group are electrically connected to the module control circuit; or,

When at least two of the composite power energy storage modules are arranged in the equipment box, at least one composite power energy storage group can be further formed between all the composite power energy storage modules; In the power energy storage group, at least one of the composite power energy storage groups includes at least two composite power energy storage modules connected by internal wiring, and the composite power energy storage group is provided with a single control circuit connected to it The second battery connection point group and/or the second capacitor connection point group, all the second battery connection point groups and/or the second capacitor connection point groups of the composite power energy storage group are connected to the module control circuit Electric connection.
A method for controlling a composite power energy storage device according to any one of claims 24-27, characterized in that:

Implement control according to application scenarios and through intelligently optimized electronic control switching:

The connection relationship between the energy storage modules, and/or

The connection relationship between the energy storage monomers, and/or,

The connection relationship between the energy storage battery and the capacitor;

Furthermore, the ratio of the output energy of the battery and the capacitor is controlled, so as to realize that the battery always runs at the optimal rate and achieves the purpose of long-distance and long-life cycle use.