CN107946669B

CN107946669B - Logic battery

Info

Publication number: CN107946669B
Application number: CN201610893485.0A
Authority: CN
Inventors: 杨思枬
Original assignee: Prologium Holding Inc; Prologium Technology Co Ltd
Current assignee: Prologium Holding Inc; Prologium Technology Co Ltd
Priority date: 2016-10-13
Filing date: 2016-10-13
Publication date: 2021-03-02
Anticipated expiration: 2036-10-13
Also published as: CN107946669A

Abstract

The invention provides a logic battery, which mainly comprises a composite substrate, a second current collecting layer, a rubber frame and an electrochemical system layer. The composite substrate comprises a first current collecting layer and a conductor circuit layer, the rubber frame is clamped between the first current collecting layer and the second current collecting layer, at least partial rubber frame is overlapped with the first current collecting layer and the second current collecting layer in the orthographic projection direction, the rubber frame, the first current collecting layer and the second current collecting layer form an enclosed area together to contain the electrochemical system layer, and the first current collecting layer, the second current collecting layer, the rubber frame and the electrochemical system layer form a battery unit.

Description

Logic battery

Technical Field

The present invention relates to a battery, and more particularly, to a logic battery integrated with a circuit and an electronic module.

Background

Although the current electronic products are designed to be thinner and lighter, the functions thereof are more diversified, and the requirements for processing efficiency are also greatly increased, so that the requirements for specifications such as capacity and safety of the battery for providing power source to the electronic products are also relatively more stringent. Taking an existing smart phone as an example, the method provides power to all electronic modules in the smart phone, for example: the display, the processor, the loudspeaker, the antenna and other components are internally provided with a battery, and all the electronic modules are electrically connected with the battery through the circuit board, so that the electric energy of the battery can be transmitted to each electronic module. Unlike the conventional smart phone, in addition to the requirement of multi-task processing performance such as call capability, internet capability, and photographing capability, the conventional smart phone has to continuously improve the resolution of the display in terms of screen display quality, and accelerate the data transmission and processing capability in order to meet the higher network speed.

Unfortunately, the thickness of the cell is positively related to its capacity, and in the case of a wound cell, once the thickness of the cell is reduced, the length of the inner electrode layers of the cell is reduced, which tends to cause a relative reduction in the capacity.

In view of the above problems, the present invention provides a structure of a logic battery to overcome the above problems.

Disclosure of Invention

The invention aims to provide a logic battery, which integrates a battery and an electronic module by simultaneously providing a current collecting layer and a conductor circuit layer which can be electrically connected with the electronic module through a composite substrate, and reduces the overall thickness.

The present invention provides a logic battery, which is provided with a current collecting layer as a battery through a composite substrate, so that no additional connecting part is required between an electrochemical system layer of the battery and the composite substrate to electrically connect the electrochemical system layer and the composite substrate, thereby effectively reducing the internal resistance of a battery unit through a large contact area and simplifying the complexity of manufacturing processes or circuit design.

Another objective of the present invention is to provide a logic battery, wherein the circuit board can be directly used for collecting current to reduce the resistance between the battery unit and the circuit board, and the circuit board is used as a part of the package of the battery unit to provide a good waterproof and air-resistant package effect.

The invention aims to provide a logic battery, which integrates an antenna unit, a battery unit and other electronic modules through a modular design so as to reduce the complexity of developing electronic application products (such as smart cards).

To achieve the above objective, the present invention provides a logic battery, which mainly includes a composite substrate, a second current collecting layer, a plastic frame and an electrochemical system layer. The composite substrate comprises a first current collecting layer and a conductor circuit layer located on the periphery of the first current collecting layer, the rubber frame is clamped between the first current collecting layer and the second current collecting layer to form an enclosed area to contain an electrochemical system layer, the first current collecting layer, the second current collecting layer, the rubber frame and the electrochemical system layer form a battery unit, and the electrochemical system layer is located in the first current collecting layer and the second current collecting layer in the orthographic projection direction. The electrochemical system layer comprises a first active material layer, a second active material layer and an isolating layer arranged between the first active material layer and the second active material layer, wherein the first active material layer is in contact with the first current collecting layer, and the second active material layer is in contact with the second current collecting layer.

The composite substrate further comprises an insulating material layer for electrically isolating the first current collecting layer from the conductor circuit layer.

The conductor circuit layer and the electrochemical system layer are positioned on the same side of the composite substrate.

When the conductor circuit layer and the electrochemical system layer are positioned on different sides of the composite substrate, the conductor circuit layer is at least partially overlapped or not overlapped with the electrochemical system layer in the orthographic projection direction.

The electronic module is electrically connected with the conductor circuit layer and is selected from a circuit, an electronic module and the combination.

Wherein, the composite substrate is a circuit board.

And the second collector layer is also provided with an insulating covering layer on the end face which is not contacted with the second active material layer.

The insulating covering layer is also provided with a patterned metal layer on one side which is not contacted with the current collecting layer, and the patterned metal layer is used for circuit layout, current collection or the combination of the functions.

Wherein the orthographic projection area of the first active material layer is smaller than that of the first collector layer.

Wherein the orthographic projection area of the second active material layer is smaller than that of the second collector layer.

The invention has the beneficial effects that:

the invention provides a brand-new logic battery, which integrates a current collecting layer required by a battery unit and a conductor circuit layer or an antenna unit required by an electronic module on a composite substrate to effectively reduce the overall thickness, has the environment-friendly requirement of component simplification under the condition of meeting the trend of lightening and thinning of electronic modules in the market, and simultaneously provides a multi-flexible electronic module assembly space.

Drawings

Fig. 1 is a schematic structural diagram of a logic battery according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the present invention.

Fig. 3 is a schematic structural diagram of another embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an embodiment of a logic battery according to the present invention, in which a portion of a conductor line layer is used as an antenna unit.

Fig. 8 is a schematic cross-sectional view of the embodiment of fig. 7.

Fig. 9 is an exploded view of a smart card with a logic battery having an antenna unit according to the present invention.

Fig. 10A and 10B are schematic diagrams of a logic battery of the present invention applied to another smart card.

Description of the reference numerals

10 logic battery

12 composite substrate

14 second collector layer

16 rubber frame

18 layer of electrochemical system

19 cell unit

20 electronic module

22 first collector layer

24 conductor line layer

26 insulating material layer

28 enclosed region

30 first active material layer

32 second active material layer

34 barrier layer

35 antenna unit

36 insulating cover layer

40 smart card

42 upper surface of the container

44 lower surface

46 keying circuit

48 push-button

50 metal guide

52 Metal guide

54 mainboard

M display unit

T1, T2 conductive parts

C1 and C2 connection point

A1 and A2 circuit layers.

Detailed Description

The invention provides a brand-new logic battery, which is mainly characterized in that a current collecting layer required by a battery and a conductor circuit layer required by an electronic module are arranged on the same composite substrate, so that the battery and the electronic module are integrated, and the flexible electronic module arrangement space is provided under the aim of reducing the overall thickness.

The following embodiments are provided to explain the spirit of the present invention so that those skilled in the art can more clearly understand the technical features of the present invention.

Please refer to fig. 1, which is a schematic structural diagram of a logic battery according to an embodiment of the present invention. As shown, the logic cell 10 of the present invention mainly includes a composite substrate 12, a second current collecting layer 14, a frame 16, an electrochemical system layer 18, and an electronic module 20. The composite substrate 12 includes a first current collecting layer 22, a conductor line layer 24, and an insulating material layer 26, wherein the insulating material layer 26 is used to isolate the first current collecting layer 22 from the conductor line layer 24. For example, the composite substrate 12 includes an insulating body made of an insulating material layer 26, a metal layer is disposed on a bottom surface of the insulating body as the first current collecting layer 22, a patterned metal layer is disposed on a top surface of the insulating body as the conductive circuit layer 24 for disposing and electrically connecting with an electronic module, or the patterned metal layer is used as an antenna unit (which will be described later). The first current collecting layer 22, the second current collecting layer 14, the rubber frame 16 and the electrochemical system layer 18 constitute a battery unit 19. The electronic module can be selected from the group consisting of a circuit, an electronic module, and a combination thereof. The composite substrate 12 may be a flexible printed circuit board. Under the design of the present invention, the composite substrate 12 provides the current collecting layer required by the battery unit 19 and the conductor line layer required by the electronic module at the same time, integrates the battery unit and the electronic module which are originally respectively and independently configured, effectively reduces the overall thickness of the electronic module, and can integrate the antenna unit, the battery unit and other electronic modules through the modularized design when the logic battery of the present invention is used as the kinetic energy supply source of the electronic module, so as to reduce the complexity of developing electronic application products (such as smart cards).

The rubber frame 16 is sandwiched between the first current collecting layer 22 and the second current collecting layer 14, the upper end surface of the rubber frame 16 is adhered to the first current collecting layer 22, and the lower end surface of the rubber frame 16 is adhered to the second current collecting layer 14 to form an enclosed region 28 in a sealed state to accommodate the electrochemical system layer 18. The first current collecting layer 22, the second current collecting layer 14, the rubber frame 16 and the electrochemical system layer 18 form a battery unit 19. The electrochemical system layer 18 includes a first active material layer 30, a second active material layer 32, a separator layer 34 disposed between the first active material layer 30 and the second active material layer 32, and an electrolyte (not shown) dispersed in the first active material layer 30, the second active material layer 32 and the separator layer 34. The first active material layer 30 is formed on the surface of the first current collecting layer 22 in the enclosed region 28 by coating and contacts with the first current collecting layer 22 to electrically connect with the composite substrate 12, and the second active material layer 32 is formed on the surface of the second current collecting layer 14 in the enclosed region 28 by coating and contacts with the second current collecting layer 14 to electrically connect with the second current collecting layer 14.

Under the framework of the invention, because the upper end surface of the rubber frame 16 is adhered to the first current collecting layer 22, the lower end surface of the rubber frame 16 is adhered to the second current collecting layer 14, the electrochemical system layer 18 completely contained in the enclosed region 28 will therefore appear to be completely located in the region of the first collector layer 22 and/or the second collector layer 14 in the orthographic direction, that is, because the glue frame 16 adhered to the first collector layer 22 and the second collector layer 14 occupies part of the area of the first collector layer 22 and the second collector layer 14, the orthographic projection area of the first active material layer 30 is smaller than that of the first collector layer 22, the orthographic projection area of the second active material layer 32 is smaller than that of the second collector layer 14, meanwhile, according to the above structure, the structure for encapsulating the electrochemical system layer 18 includes the rubber frame 16 and the first current collecting layer 22 and the second current collecting layer 14 adhered to each other by the rubber frame 16.

In addition, the glue frame 16 may be located completely or partially within the orthographic projection area of the first collector layer 22 and the second collector layer 14, namely, when the glue frame 16 is completely located in the orthographic projection area of the first collector layer 22 and the second collector layer 14, if the first collector layer 22 and the second collector layer 14 have the same length in cross section, the rubber frame 16 does not protrude beyond the first and second current collecting layers 22 and 14 at all, and if the first and second current collecting layers 22 and 14 have different lengths in cross section, the glue frame 16 is located in the orthographic projection area where the first collector layer 22 intersects the second collector layer 14, if the glue frame 16 is located locally in the orthographic projection area of the first collector layer 22 and the second collector layer 14, this means that the partial rubber frame 16 is present protruding beyond the first collector layer 22 and the second collector layer 14 regardless of whether the first collector layer 22 and the second collector layer 14 have the same length in cross section.

In this embodiment, the conductor line layer 24 and the first current collecting layer 22 are located on different sides of the composite substrate, and in this case, the conductor line layer 24 may be at least partially overlapped with respect to the orthographic projection of the battery cell 19, or may be completely non-overlapped in the orthographic projection direction to avoid electromagnetic interference, as shown in fig. 2.

Please refer to fig. 3, which is a schematic structural diagram according to another embodiment of the present invention. This embodiment differs from the above-described embodiments in that the conductor line layer 24 is not limited to a single side of the composite substrate 12, but extends to another surface, such as the upper and lower surfaces shown in fig. 3. At this time, the first current collecting layer 22 occupies only a partial region of the lower surface of the composite substrate 12, and the first current collecting layer 22 and the conductor line layer 24 can be formed on the same side of the composite substrate 12.

Of course, the surface of the second current collecting layer 14 not in contact with the second active material layer 32 may also be provided with an insulating cover layer 36, and the surface of the insulating cover layer 36 not in contact with the second current collecting layer 14 may also be provided with another patterned metal layer 38 for use as another conductor wiring layer and/or for current collection, as shown in the structural state of fig. 4. Alternatively, the second current collecting layer 14 is formed on a composite substrate as the first current collecting layer 22 described above.

The isolation layer 34 may be selected from a material such as micro-sized and nano-sized titanium dioxide (TiO 2), aluminum oxide (Al 2O 3), silicon dioxide (SiO 2), or an alkylated ceramic particle, so that the electrochemical system layer 18 can achieve ionic conduction during electrochemical reaction, and the ceramic particle is polymerized by using a polymer binder such as Polyvinylidene fluoride (PVDF), Polyvinylidene fluoride-co-trichloroethylene (PVDF-HFP), Polytetrafluoroethylene (PTFE), Acrylic Acid Glue (Acrylic Acid Glue), Epoxy resin (Epoxy), polyethylene oxide (PEO), Polyacrylonitrile (PAN), or Polyimide (PI). Of course, similar to the surface of the composite substrate 12, in order to ensure that the battery unit 19 has good water and gas blocking effects, the outer surface of the battery unit 19 (including the second current collecting layer 14) may be covered with a covering layer made of polymer materials such as Polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polystyrene (PS), polypropylene (PP), polyvinyl chloride (PVC), polybutylene terephthalate (PBT), polyethylene (PE; High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), etc.), Polyamide (PA), Acrylic resin (Acrylic), Epoxy resin (Epoxy), or glass fiber, so as to ensure the insulation of the battery unit 14 from the outside.

The conductive circuit layer 24 can be used as the antenna element 35, and the composite substrate 12 can be a hard substrate or a soft substrate. When the composite substrate 12 is a rigid substrate, as shown in fig. 5, the positions of the antenna units 35 relative to the battery unit 19 are both partially overlapped or not overlapped at all in the orthogonal projection direction. When the composite substrate 12 is a flexible substrate, as shown in fig. 6, in addition to the position determination method of the rigid substrate, the composite substrate 12 may be bent according to the requirement of product design so that the conductor circuit layer 24 may be partially overlapped or completely non-overlapped with respect to the battery cell 19 in the orthogonal projection direction.

More specifically, please refer to fig. 7 and 8, which are a schematic structural diagram and a schematic cross-sectional diagram of an embodiment of a logic battery according to the present invention, in which a portion of a conductor circuit layer is used as an antenna unit. As shown, the lower conductor line layer 24 is configured as an antenna unit 35. The antenna unit 35 surrounds the periphery of the battery unit 19 when viewed in the front projection direction, and the antenna unit 35 and the battery unit 19 do not overlap at all in the front projection direction. The composite substrate 12 is provided with two conductive portions T1 and T2 for power output of the logic battery, the antenna unit 35 has two connection points C1 and C2, each of the conductive portions T1 and T2 and the corresponding connection points C1 and C2 can be electrically connected by a wire, for example, the wires connecting the conductive portions T1 and T2 and the connection points C1 and C2 can be spanned over the antenna unit 35 (not shown), and the width of the wires spanned over the antenna unit 35 is not more than 150 μm for reducing interference of electromagnetic effect. In addition, in this form, besides the conductive portions T1 and T2 and the connection points C1 and C2 may be remained on the surface of the circuit substrate, at least one conductive portion and the corresponding connection point may be integrated into a single end point to simplify the layout design of the conductive lines on the composite substrate 12 and reduce the area.

Although the antenna unit 35 and the battery unit 19 are on the same side of the composite substrate 12 in the above embodiments, in practical applications, the antenna unit 35 and the battery unit 19 can be disposed on different sides by adjusting the position of the metal layer (the first current collecting layer or the conductor line layer) of the composite substrate. Antenna elements 35 or battery elements 19 may also be provided on both sides of the composite substrate 12 as desired.

The composite substrate 12 may further include other conductive circuit layers 24 for disposing the electronic module (not shown) such as, but not limited to, a key module, a display module or any other electronic module on the composite substrate 12.

In the present embodiment, the Composite substrate 12 may be a single-layer circuit board or a double-layer circuit board, and the material of the double-layer circuit board may include a paper phenolic copper substrate, a paper Epoxy (Epoxy) copper substrate, a Glass-Epoxy copper substrate, a Glass Composite copper substrate, a benzene resin copper substrate, or a flexible copper substrate made of a polymer or polyester material. The conductor circuit layer 24 of the composite substrate 12 may be formed into the antenna unit 35 by laser engraving, etching, machining, sputtering, evaporation, coating, etc., and the common antenna structure may be spiral, linear, block, etc.; in addition, the remaining surface of the composite substrate 12 may be covered with a protective layer (not shown), which may be selected from electrically insulating materials, chemical insulating materials, and the like, such as Polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polystyrene (PS), polypropylene (PP), polyvinyl chloride (PVC), polybutylene terephthalate (PBT), polyethylene (PE; High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), and the like), Polyamide (PA), Acrylic resin (Acrylic), Epoxy resin (Epoxy), glass fiber, and other polymer materials.

Because the electrochemical system layer 18 of the present invention is directly formed on the metal surface of the composite substrate 12 (e.g., the surface of the copper layer), i.e., the metal layer of the composite substrate 12 is used as a current collecting layer of the battery, no additional connecting portion is required between the electrochemical system layer 18 and the composite substrate 12 to electrically connect the electrochemical system layer 18 and the composite substrate 12, so that the internal resistance of the battery cell is effectively reduced through a larger contact area, and the complexity of the process or circuit design is further simplified.

In practical applications, the antenna unit 35 of the present invention may be an inductive antenna, so that on one hand, a data format of Universal Asynchronous Receiver Transmitter (UART) may be adopted to transmit data in NFC, and the encoding mode is Non-Return-to-Zero (NRZ) encoding, and on the other hand, the antenna unit 35 may also be an electromagnetically-induced Wireless charging antenna and conforms to a standard format established by a Alliance such as A4WP (Alliance for Wireless Power), pma (Power Matters Alliance), wpc (Wireless Power consortium), and the like; in addition, the antenna unit 35 may be additionally used as a bluetooth function module, a WIFI function module, an LTE function module, or a 3G function module according to different functional requirements, and the like, and any combination of the above function modules may be used as an antenna.

In order to prevent the magnetic lines of force induced by the antenna unit 35 from being shielded by the battery unit 19, the antenna unit 35 is preferably arranged in such a manner that the minimum distance (see D shown in fig. 7) between any edge of the battery unit 19 and the antenna unit 35 is not less than 2 cm. According to the data display of the implementation, when the antenna unit and the battery unit are in a form of being aligned or overlapped in the orthographic projection direction, the wireless charging efficiency is about 10-15% of the wired charging efficiency due to the electromagnetic shielding effect of the antenna unit and the battery unit, wherein the wired charging mode is performed by a direct contact type charger; when the distance between the antenna unit 35 and the battery unit 19 is designed to be less than 2 cm but not to be flush or overlapped, the electromagnetic shielding effect of the antenna unit 35 and the battery unit 19 is improved, but the wireless charging efficiency of the battery unit 14 is about only 40% of the wired charging efficiency; when the distance between the antenna unit 35 and the battery unit 19 is designed to be enlarged to 2 cm, the wireless charging efficiency can be increased back to 60%; when the distance between the antenna unit 35 and the battery unit 19 is increased to 3 cm, the power supply efficiency can reach about 80%; once the distance between the antenna unit 35 and the battery unit 19 is greater than 6 cm, the wireless charging efficiency provided by the antenna unit 35 is almost the same as the wired charging efficiency of the direct-contact charger, i.e., the wireless charging efficiency is almost 100%. It can be seen that, in order to reduce the influence of the shielding effect, the larger the distance between the antenna unit 35 and the battery unit 19 is, the better, but in the limited area of the composite substrate 12, the too large distance still has the defect of sacrificing too much circuit layout area, or in some products, although the charging efficiency is poor due to the fact that the antenna unit and the battery unit are in a form of being aligned or overlapped, because the charging requirement of the product itself is low, the influence on the charging effect is not too serious on the premise of maintaining the size of the whole antenna battery module to be small in design.

Please refer to fig. 9, which is an exploded view of the application of the logic battery with antenna unit in a smart card 40 according to the present invention. Since the smart card 40 not only needs to dynamically generate the security code in operation, but also can be used as the security code input to confirm the credit transaction, for example, the credit card number or the valid month carried in the upper surface 42, or the check code carried in the lower surface 44 can be input, when the key circuit 46 is triggered by the user pressing the key 48, the key signal is transmitted to the metal guide 50 for output through the signal line, and the logic battery 10 with the antenna unit 35 also supplies power to the main board 54 through the metal guide 52, and after the operation is performed through the control unit in the main board 54, the operation result is transmitted to the receiving end through the antenna unit 35 in the form of electromagnetic signal, or displayed on the display unit M. The receiving end comprises an induction loop of a digital board or other devices for receiving electromagnetic signals, such as a payment induction card reader arranged in front of a checkout counter of a shop or a sensor for wirelessly charging a mobile phone. In addition, since 2 pins Vcc and Vpp of the 8 metal pins of the smart card 40 contacting the card reader can supply power to the integrated circuit inside the smart card 40 according to the smart card specification of ISO 78165, the charging circuit of the motherboard 54 can still obtain external power through these two pins to charge the battery unit 19 even without inductive charging. The metal guides 50 and 52 are used as an interface for the logic battery 10 and the control unit to perform induction charging or signal output of the key circuit 46, and besides copper foil, tin, indium, silver, brass, bronze or gold may be plated to increase corrosion resistance, oxidation resistance and conductivity.

Referring to fig. 10A and 10B together, the schematic front and back views of the logic battery applied to another smart card of the present invention are different from the above embodiments in that the antenna unit 35, the battery unit 19, the electronic module 20 (such as the key circuit shown in the figures) and the display unit M in this embodiment are disposed on the two circuit layers a1 and a2 of the same composite circuit substrate 12 through signal lines, and no additional metal conducting elements are required for connection, and since the antenna unit 35 is disposed around the outermost periphery of the whole smart card 40, the antenna unit 35 can perform signal transmission or wireless charging only by partially contacting the receiving end.

In summary, the present invention provides a novel logic battery, which integrates the current collecting layer required by the battery unit and the conductor circuit layer or the antenna unit required by the electronic module on a composite substrate to effectively reduce the overall thickness, and has the environmental protection requirement of component simplification while meeting the trend of light and thin electronic modules in the market, and also provides the assembly space of the electronic module with multi-flexibility.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, all the equivalent changes or modifications according to the features and the spirit of the claims should be included in the protection scope of the present invention.

Claims

1. A logic battery, comprising:

a composite substrate, comprising:

a layer of insulating material;

a first current collecting layer arranged on the bottom surface of the insulating material layer; and

at least one conductor circuit layer arranged on the top surface of the insulating material layer;

a second collector layer;

the rubber frame is clamped between the first current collecting layer and the second current collecting layer and provided with an upper end face and a lower end face, wherein the upper end face is adhered to the first current collecting layer, the lower end face is adhered to the second current collecting layer, and at least part of the rubber frame is overlapped with the first current collecting layer and the second current collecting layer in the orthographic projection direction to form an enclosing region; and

an electrochemical system layer, which is arranged in the enclosed area, wherein the first current collecting layer, the second current collecting layer, the rubber frame and the electrochemical system layer form a battery unit, the area of the electrochemical system layer in the orthographic projection direction is smaller than the orthographic projection area of at least one of the first current collecting layer and the second current collecting layer, the electrochemical system layer comprises a first active material layer, a second active material layer and an isolating layer arranged between the first active material layer and the second active material layer, the first active material layer is coated on the first current collecting layer and is contacted with the first current collecting layer, and the second active material layer is coated on the second current collecting layer and is contacted with the second current collecting layer;

the second collector layer is also provided with an insulating covering layer on the end face which is not contacted with the second active material layer;

the insulating cover layer is also provided with a patterned metal layer on one side not contacting the current collecting layer, so as to be used for circuit layout, current collection or the combination of the functions.

2. The logic cell as defined in claim 1, wherein the conductor line layer and the electrochemical system layer are on the same side of the composite substrate.

3. The logic cell as defined in claim 1, wherein the conductor line layer at least partially overlaps or does not overlap the electrochemical system layer in an orthogonal projection direction when the conductor line layer and the electrochemical system layer are on different sides of the composite substrate.

4. The logic cell as defined in claim 1, further comprising at least one electronic module, the electronic module being electrically connected to the conductive trace layer, the electronic module being selected from the group consisting of a circuit, an electronic module, and combinations thereof.

5. The logic cell as defined in claim 1, wherein the composite substrate is a circuit board.

6. The logic cell of claim 1, wherein an orthographic area of the first active material layer is less than an orthographic area of the first current collector layer.

7. The logic cell of claim 1, wherein an orthographic area of the second active material layer is smaller than an orthographic area of the second collector layer.