A three-dimensional battery for in-situ measurement

Abstract

This invention discloses a three-dimensional battery for in-situ measurement, relating to the field of battery technology. The three-dimensional battery for in-situ measurement includes: a substrate having a vertical portion and a horizontal portion; the vertical portion being connected to the horizontal portion and having a detection through-hole; a first electrode connected to the horizontal portion, passing through the detection through-hole, with the edge of the detection through-hole forming a detection channel between the first electrode and the first electrode; a second electrode connected to the vertical portion, with the detection channel located between the second electrode and the first electrode; and an electrolyte layer disposed in the detection channel, in contact with the first and second electrodes. The three-dimensional battery for in-situ measurement disclosed in this invention can solve the technical problem that current in-situ measurement techniques often result in significant deviations from the microstructural changes of electrode materials, failing to accurately characterize the actual reaction process of the battery.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more specifically to a three-dimensional battery for in-situ measurement. Background Technology

[0002] Rechargeable batteries, as an effective electrochemical energy storage device, are receiving increasing attention from researchers. Electrode materials, as a crucial component of rechargeable batteries, play a vital role in the charging and discharging process. During the charging and discharging process, the microstructure of electrode materials continuously changes, such as alterations in lattice constant and phase transitions. Corresponding these changes in internal microstructure to reaction conditions in real time is beneficial for understanding electrode processes, catalytic mechanisms, and interfacial reactions within the battery reaction process.

[0003] In-situ measurement (such as XRD, or X-ray diffraction) techniques can monitor the real-time changes in the diffraction patterns of electrode materials during battery charging and discharging, thereby inferring the changes in products and phases during the electrode reaction process. This helps to reveal the mechanism of battery charging and discharging reactions and provides guidance for the subsequent design and development of high-performance electrode materials.

[0004] However, the results obtained by in-situ measurement techniques usually deviate significantly from the microstructural changes of the electrode materials, and cannot accurately characterize the actual reaction process of the battery. Summary of the Invention

[0005] The purpose of this invention is to provide a three-dimensional battery for in-situ measurement, which aims to solve the technical problem that the results obtained by current in-situ measurement technology usually deviate significantly from the microstructural changes of electrode materials, and cannot accurately characterize the actual reaction process of the battery.

[0006] To achieve its objectives, the present invention employs the following technical solution:

[0007] A three-dimensional battery for in-situ measurement, the three-dimensional battery for in-situ measurement comprising:

[0008] The base has a vertical portion and a horizontal portion; the vertical portion is connected to the horizontal portion, and the vertical portion has a detection through hole;

[0009] A first electrode is connected to the transverse portion and passes through the detection through hole, forming a detection channel between the edge of the detection through hole and the first electrode.

[0010] The second electrode is connected to the vertical part, and the detection channel is located between the second electrode and the first electrode;

[0011] An electrolyte layer is disposed in the detection channel, and the electrolyte layer is in contact with the first electrode and the second electrode.

[0012] Furthermore, the angle between the vertical portion and the horizontal portion is 0~90°.

[0013] Furthermore, the second electrode is connected to the first side of the vertical portion and / or the second side of the vertical portion; the first side is opposite to the second side.

[0014] Furthermore, the three-dimensional battery for in-situ measurement includes a first encapsulation structure; the first encapsulation structure is connected to the substrate, and a first encapsulation region is formed between the first encapsulation structure and the substrate; the first electrode, the second electrode, and the probe via are located within the first encapsulation region;

[0015] The electrolyte layer includes an electrolyte solution, which fills the first encapsulation area.

[0016] Furthermore, the first encapsulation structure includes a first frame, a second frame, a first flexible cover plate, and a second flexible cover plate, and the first encapsulation area includes a first sub-region and a second sub-region;

[0017] One side of the first adhesive frame is connected to one side of the vertical portion and the side of the horizontal portion faces the vertical portion; the first flexible cover plate covers the other side of the first adhesive frame; the base, the first adhesive frame, and the first flexible cover plate enclose and form the first sub-region.

[0018] One side of the second frame is connected to the other side of the vertical portion, and the side of the horizontal portion faces the vertical portion. The second flexible cover plate covers the other side of the second frame. The base, the second frame, and the second flexible cover plate enclose and form the second sub-region.

[0019] The detection via connects the first sub-region and the second sub-region.

[0020] Furthermore, the substrate is a flexible structure, and the substrate is folded along a first fold line, a second fold line, and a third fold line to form a first straight portion, a second straight portion, a third straight portion, and a fourth straight portion; the first fold line is located between the first straight portion and the second straight portion, the second fold line is located between the second straight portion and the third straight portion, and the third fold line is located between the third straight portion and the fourth straight portion; the second straight portion and the third straight portion are fitted together, the first straight portion and the second straight portion form a first angle, and the fourth straight portion and the third straight portion form a second angle; the second straight portion and the third straight portion constitute the vertical portion, and the first straight portion and the fourth straight portion constitute the horizontal portion.

[0021] Furthermore, the three-dimensional battery for in-situ measurement includes a second encapsulation structure; the second encapsulation structure is disposed between the second flat portion and the third flat portion, and a second encapsulation region is formed between the second encapsulation structure and the substrate; the probe via is located within the second encapsulation region.

[0022] Furthermore, the second encapsulation structure includes a third frame and a third flexible cover plate;

[0023] The third frame includes a U-shaped frame and a closed-loop frame; one side of the U-shaped frame is connected to the side of the second straight portion facing the third straight portion, and the other side of the U-shaped frame is connected to the side of the third straight portion facing the second straight portion; the open end of the U-shaped frame is connected to the closed-loop frame; one side of the closed-loop frame is connected to the side of the first straight portion facing away from the detection through hole and the side of the fourth straight portion facing away from the detection through hole; the third flexible cover plate covers the other side of the closed-loop frame.

[0024] The second encapsulation area is formed by the enclosure between the substrate, the U-shaped frame, the closed-loop frame, and the third flexible cover plate.

[0025] Furthermore, the detection through-hole includes a first through-hole and a second through-hole; the first through-hole is opened in the second straight portion, and the second through-hole is opened in the third straight portion; the first through-hole and the second through-hole are opposite to each other.

[0026] Furthermore, the second straight portion is provided with a cutting line, and the cutting line and the first fold line enclose a cutting area; the cutting area rotates around the first fold line to pass through the second through hole, so that the second straight portion forms the first through hole; the first electrode is connected to the cutting area, and the edge of the first through hole and the first electrode form the detection channel.

[0027] Furthermore, the smaller of the first and second through holes is a semi-circular through hole, and the arc segment of the semi-circular through hole forms the detection channel with the first electrode.

[0028] Furthermore, the three-dimensional battery for in-situ measurement includes a current collector, which is printed on or attached to the substrate; the current collector is in communication with the first electrode, and / or the current collector is in communication with the second electrode.

[0029] Furthermore, the second electrode has a first flow-through hole, and the vertical portion has a second flow-through hole; the first flow-through hole and the second flow-through hole are connected.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The three-dimensional battery proposed in this invention for in-situ measurement allows the first and second electrodes to undergo electrochemical reactions with the electrolyte layer. This enables the transfer of electric field and ions between the first and second electrodes via the electrolyte layer. Since the detection channel is located between the first and second electrodes, and the electrolyte layer is situated within the detection channel, the main transmission path of the electric field and ions passes through the detection channel. Thus, the operator can project a probe light beam at a downward angle onto the portion of the first electrode located at the detection channel. Upon contact with the first electrode, the probe light beam is reflected upwards. During this process, the probe light beam passes through the detection channel, fully contacting the main transmission path of the electric field and ions. Therefore, the measurement results based on the probe light beam will more accurately reflect the electric field and ion migration and transmission between the first and second electrodes. This allows for a more accurate characterization of the microstructural changes of the electrodes, thus accurately reflecting the actual reaction of the battery. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a measuring battery in the first prior art;

[0034] Figure 2 This is a schematic diagram of the structure of a measuring battery in the second prior art;

[0035] Figure 3 This is a schematic cross-sectional view of the substrate in a first state in the first embodiment of the three-dimensional battery used for in-situ measurement according to the present invention.

[0036] Figure 4 This is a schematic cross-sectional view of the substrate in the second state in the first embodiment of the three-dimensional battery for in-situ measurement according to the present invention.

[0037] Figure 5 This is a cross-sectional structural schematic diagram of the second embodiment of the three-dimensional battery used for in-situ measurement according to the present invention;

[0038] Figure 6 This is a three-dimensional structural schematic diagram of the second embodiment of the three-dimensional battery for in-situ measurement according to the present invention;

[0039] Figure 7 This is an exploded structural diagram of the second embodiment of the three-dimensional battery for in-situ measurement according to the present invention;

[0040] Figure 8 This is a schematic diagram of the substrate folding of the second embodiment of the three-dimensional battery used for in-situ measurement according to the present invention;

[0041] Figure 9 This is a schematic diagram of the substrate folding of the third embodiment of the three-dimensional battery used for in-situ measurement according to the present invention;

[0042] Figure 10 This is a schematic diagram of the substrate folding of the fourth embodiment of the three-dimensional battery used for in-situ measurement according to the present invention;

[0043] Figure 11 This is an exploded structural diagram of the fifth embodiment of the three-dimensional battery used for in-situ measurement according to the present invention.

[0044] Explanation of icon numbers:

[0045] 100-First reaction electrode, 200-Second reaction electrode, 300-Electrolysis reaction layer, 400-Third reaction electrode, 500-Fourth reaction electrode, 1-Substrate, 2-First electrode, 3-Second electrode, 4-First encapsulation structure, 5-First encapsulation area, 6-Second encapsulation structure, 7-Second encapsulation area, 8-Collector, 11-Vertical portion, 12-Horizontal portion, 13-First fold line, 14-Second fold line, 15-Third fold line, 16-Cut line, 17-Cut area, 31-First flow path Hole, 41-First frame, 42-Second frame, 43-First flexible cover, 44-Second flexible cover, 51-First sub-region, 52-Second sub-region, 61-Third frame, 62-Third flexible cover, 111-Detection through hole, 112-Second straight section, 113-Third straight section, 114-Second through hole, 121-First straight section, 122-Fourth straight section, 611-U-shaped frame, 612-Closed-loop frame, 1111-First through hole, 1112-Second through hole.

[0046] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0050] After analyzing the existing technology, the technical personnel of this application have found that when existing in-situ measurement techniques are applied to the measurement of electrode material reaction processes, their shortcomings are as follows:

[0051] like Figure 1 As shown, Chinese invention patent application number CN202010339371.8 discloses a multifunctional X-ray diffractometer in-situ battery reaction chamber. In this chamber, a first reaction electrode 100 is the electrode to be tested. The first reaction electrode 100 and the second reaction electrode 200 are electrically connected through a measuring device. An electrolytic reaction layer 300 is provided between the first reaction electrode 100 and the second reaction electrode 200. A transmission window is provided on the surface of the first reaction electrode 100. The transmission window can be made of beryllium film, polyimide film, etc. In the actual measurement process, X-rays are projected onto the transmission window, and the penetrability of X-rays is used to detect the changes in the microstructure of the first reaction electrode 100 and the second reaction electrode 200 during the reaction process. The measuring device has a complex structure and requires the first reaction electrode 100 to be thin enough or the electrolytic reaction layer 300 to be fully penetrated by X-rays. This is because during the electrochemical reaction, the electric field and ion migration and transport are concentrated on the lower side of the first reaction electrode 100, that is, between the first reaction electrode 100 and the second reaction electrode 200. The changes in the microstructure of the electrode can only be accurately characterized at the concentrated transport position of the electric field and ions. When the X-rays do not penetrate deeply or the upper and lower surfaces of the electrode are not uniform (for example, the electrode material exhibits different valence states during the reaction), the X-rays cannot fully contact the concentrated transport position of the electric field and ions, resulting in a large deviation between the measurement results and the actual reaction of the battery.

[0052] As for coplanar battery structures, such as Figure 2In the second prior art shown, the third reaction electrode 400 and the fourth reaction electrode 500 are arranged side by side. The reaction position between the electrodes (i.e., the concentrated position of electric field and ion transport) is mainly concentrated between the third reaction electrode 400 and the fourth reaction electrode 500. In the actual measurement process, a probe light is projected onto the upper surface of the third reaction electrode 400, and part of the probe light passes between the third reaction electrode 400 and the fourth reaction electrode 500. In this way, the changes in the microstructure of the electrodes can be inferred by detecting the electric field and ion transport process between the third reaction electrode 400 and the fourth reaction electrode 500 during the reaction. However, due to the limitations of battery structure and performance, the gap between the third reaction electrode 400 and the fourth reaction electrode 500 is small, so the characterization area is limited and it still cannot accurately reflect the actual reaction between the electrodes.

[0053] Based on the above problems and findings, the present invention provides a three-dimensional battery for in-situ measurement to solve the problem in the prior art that it is impossible to fully obtain the electric field and ion transport status between the reaction electrodes, thus making it difficult to accurately characterize the actual reaction of the battery through changes in the microstructure of the electrodes.

[0054] Please see Figure 3 In the first embodiment, the three-dimensional battery for in-situ measurement includes:

[0055] The base 1 has a vertical portion 11 and a horizontal portion 12; the vertical portion 11 is connected to the horizontal portion 12, and the vertical portion 11 has a detection through hole 111; specifically, the side surface of one base 1 can be attached to the upper surface of another base 1 to form the vertical portion 11 and the horizontal portion 12; when the base 1 adopts a flexible structure that can be bent, a base 1 can also be folded to have a vertical portion 11 and a horizontal portion 12, and the specific folding method is not limited; the detection through hole 111 can be set at the junction of the vertical portion 11 and the horizontal portion 12;

[0056] The first electrode 2 is connected to the transverse portion 12 and passes through the detection through hole 111, forming a detection channel between the edge of the detection through hole 111 and the first electrode 2; wherein, as shown Figure 3 As shown, the detection channel can refer to the gap between the upper edge of the detection through hole 111 and the upper surface of the first electrode 2.

[0057] The second electrode 3 is connected to the vertical part 11, and the detection channel is located between the second electrode 3 and the first electrode 2; wherein, as shown in the figure Figure 3 As shown, the second electrode 3 can be disposed above the first electrode 2 and the detection through hole 111; one of the first electrode 2 and the second electrode 3 is a positive electrode, and the other is a negative electrode;

[0058] An electrolyte layer (not shown in the figure) is disposed in the detection channel and is in contact with the first electrode 2 and the second electrode 3. Specifically, the electrolyte layer can be an electrolyte or a solid (such as a gel) electrolyte. When the electrolyte layer is an electrolyte, the electrolyte, the first electrode 2, and the second electrode 3 can be encapsulated in a closed chamber through an encapsulation structure, ensuring that the electrolyte flows in the detection channel. When the electrolyte layer is a solid electrolyte, the connection between the solid electrolyte, the first electrode 2, and the second electrode 3 can be achieved through bonding or other methods, ensuring that the solid electrolyte passes through the detection channel.

[0059] Based on the above structural configuration, the first electrode 2 and the second electrode 3 can undergo electrochemical reactions with the electrolyte layer. Thus, electric field and ion migration and transport can occur between the first electrode 2 and the second electrode 3 through the electrolyte layer. Since the detection channel is located between the first electrode 2 and the second electrode 3, and the electrolyte layer is located within the detection channel, the main transport path of the electric field and ions will be as follows: Figure 3 As shown, the detection channel is used; thus, the operator can... Figure 3 The probe light is projected downwards onto the portion of the upper surface of the first electrode 2 located at the probe channel. Upon contact with the first electrode 2, the probe light is reflected upwards. During this process, the probe light passes through the probe channel, making full contact with the electric field and the main ion transport path. Therefore, the measurement results based on the probe light will more accurately match the electric field and ion migration and transport between the first electrode 2 and the second electrode 3. This allows for a more accurate characterization of the electrode's microstructure changes, thus accurately reflecting the actual reaction of the battery. The probe light can be X-rays or other visible light.

[0060] Optionally, such as Figure 3 and Figure 4 As shown, the angle between the vertical part 11 and the horizontal part 12 is 0~90°.

[0061] When the stereocell used for in-situ measurement in the above embodiment is tested using the aforementioned probe light, the vertical portion 11 can be set perpendicular to the horizontal portion 12 to maximize the area of ​​the probe channel serving as the test window, thereby increasing the detection range of the probe light. However, when the stereocell used for in-situ measurement in the above embodiment is replaced with spectral testing or confocal microscopy testing, the vertical portion 11 can be set to be tilted at a certain angle relative to the horizontal portion 12. Specifically, when the substrate 1 is a flexible structure, it is only necessary to bend the vertical portion 11 towards or away from the horizontal portion 12. Figure 4As shown, the right side of the adjusted vertical part 11 forms an acute angle with the horizontal part 12, while the left side of the vertical part 11 forms an obtuse angle with the horizontal part 12. On the left side of the vertical part 11, the obstruction of the vertical part 11 to the first electrode 2 will be reduced, and the part of the first electrode 2 that directly contacts the test end will be increased, which is more conducive to ensuring the accuracy of spectral testing and confocal microscopy testing.

[0062] Optionally, refer to Figures 3 to 7 The three-dimensional battery for in-situ measurement includes a first encapsulation structure 4; the first encapsulation structure 4 is connected to the substrate 1, and a first encapsulation region 5 is formed between the first encapsulation structure 4 and the substrate 1; the first electrode 2, the second electrode 3, and the detection through hole 111 are located within the first encapsulation region 5.

[0063] The electrolyte layer includes an electrolyte solution, which is filled within the first encapsulation region 5.

[0064] The first encapsulation structure 4 can be encapsulated using a plastic frame or heat-sealed using heat-sealing adhesive. In specific implementation, the first encapsulation structure 4 can be configured as an integral piece covering the left and right sides of the vertical part 11, so as to simultaneously cover and seal the left and right ends of the detection through hole 111 with the first electrode 2 and the second electrode 3. The first encapsulation structure 4 can also be configured as a split type. One part of the first encapsulation structure 4 covers the left side of the vertical part 11. When the second electrode 3 is provided on the left side of the vertical part 11, this part of the first encapsulation structure 4 can simultaneously cover the left side of the first electrode 2 and the second electrode 3 on the left side of the vertical part 11 and seal the left end of the detection through hole 111. The other part of the first encapsulation structure 4 covers the right side of the vertical part 11. When the second electrode 3 is provided on the right side of the vertical part 11, this part of the first encapsulation structure 4 can simultaneously cover the right side of the first electrode 2 and the second electrode 3 on the right side of the vertical part 11 and seal the right end of the detection through hole 111. In this way, the electrolyte can flow through the detection channel on both sides of the vertical part 11, thereby making full contact with the second electrodes 3 provided on both sides of the vertical part 11.

[0065] Based on the above-mentioned arrangement of the first encapsulation structure 4, the electrolyte can be confined to flow within the first encapsulation area 5, ensuring that the electrolyte reacts stably with the first electrode 2 and the second electrode 3 while preventing electrolyte overflow.

[0066] Optionally, refer to Figures 3 to 7 The first encapsulation structure 4 includes a first frame 41, a second frame 42, a first flexible cover plate 43 and a second flexible cover plate 44, and the first encapsulation region 5 includes a first sub-region 51 and a second sub-region 52.

[0067] One side of the first frame 41 is connected to one side of the vertical part 11, and the horizontal part 12 faces the side of the vertical part 11. The first flexible cover plate 43 covers the other side of the first frame 41. The base 1, the first frame 41, and the first flexible cover plate 43 enclose and form a first sub-region 51.

[0068] One side of the second frame 42 is connected to the other side of the vertical part 11, and the horizontal part 12 faces the side of the vertical part 11. The second flexible cover plate 44 covers the other side of the second frame 42. The base 1, the second frame 42, and the second flexible cover plate 44 enclose and form a second sub-region 52.

[0069] The probe hole 111 connects the first sub-region 51 and the second sub-region 52.

[0070] The first packaging structure 4 in this embodiment adopts the split structure described in the above embodiment; wherein, the first adhesive frame 41 is located on the left side of the vertical part 11, and the first adhesive frame 41 can be bent to simultaneously fit with the left side of the vertical part 11 and the upper side of the horizontal part 12. When the second electrode 3 is provided on the left side of the vertical part 11, the first adhesive frame 41 simultaneously encloses the left side of the first electrode 2, the second electrode 3 on the left side of the vertical part 11, and the left end of the detection through hole 111. Then, the bent first flexible cover plate 43 is fully fitted with the first adhesive frame 41, so that the left side of the vertical part 11 can be enclosed to form the first sub-region 51; the second adhesive frame 42 is located on the left side of the vertical part 11. On the right side of the vertical part 11, the second adhesive frame 42 can be bent to simultaneously fit with the right side of the vertical part 11 and the upper side of the horizontal part 12. When the second electrode 3 is provided on the right side of the vertical part 11, the second adhesive frame 42 simultaneously encloses the right side of the first electrode 2, the second electrode 3 on the right side of the vertical part 11, and the right end of the detection through hole 111. Then, the bent second flexible cover plate 44 is fully fitted with the second adhesive frame 42, so that the right side of the vertical part 11 can be enclosed to form a second sub-region 52. The first sub-region 51 and the second sub-region 52 are connected through the detection channel to form a closed first encapsulation region 5, so that the electrolyte can flow in it.

[0071] Optionally, refer to Figures 3 to 7 The second electrode 3 is connected to the first side surface of the vertical portion 11 and / or the second side surface of the vertical portion 11; the first side surface and the second side surface are opposite to each other.

[0072] When the second electrode 3 is set to two, such as Figure 3As shown, the two second electrodes 3 are respectively arranged on the left and right sides of the vertical part 11. When there is only one second electrode 3, the second electrode 3 can be arranged on the left side of the vertical part 11. Since there is no second electrode 3 on the right side of the vertical part 11, the second frame 42 only needs to enclose the right side of the first electrode 2 and the right end of the detection through hole 111. This can reduce the size of the second frame 42 and the second flexible cover plate 44, save costs, and make the structure simpler.

[0073] Optionally, refer to Figures 5 to 7 In the second embodiment, the substrate 1 is a flexible structure. The substrate 1 is folded along the first fold line 13, the second fold line 14, and the third fold line 15 to form a first straight portion 121, a second straight portion 112, a third straight portion 113, and a fourth straight portion 122. The first fold line 13 is located between the first straight portion 121 and the second straight portion 112, the second fold line 14 is located between the second straight portion 112 and the third straight portion 113, and the third fold line 15 is located between the third straight portion 113 and the fourth straight portion 122. The second straight portion 112 and the third straight portion 113 are attached together. The first straight portion 121 and the second straight portion 112 form a first angle, and the fourth straight portion 122 and the third straight portion 113 form a second angle. The second straight portion 112 and the third straight portion 113 constitute a vertical portion 11, and the first straight portion 121 and the fourth straight portion 122 constitute a horizontal portion 12.

[0074] In this embodiment, the vertical portion 11 and the horizontal portion 12 can be formed by folding a single base 1, thereby simplifying the manufacturing process of the three-dimensional battery used for in-situ measurement. The first and second included angles can be specifically set according to different measurement methods. When it is necessary to adjust the first and second included angles, simply bend the second straight portion 112 and the third straight portion 113 towards or away from the first straight portion 121.

[0075] Optionally, refer to Figures 5 to 7 The three-dimensional battery for in-situ measurement includes a second encapsulation structure 6; the second encapsulation structure 6 is disposed between the second flat portion 112 and the third flat portion 113, and a second encapsulation region 7 is formed between the second encapsulation structure 6 and the substrate 1; the probe through hole 111 is located within the second encapsulation region 7.

[0076] Optionally, refer to Figures 5 to 7 The detection through hole 111 includes a first through hole 1111 and a second through hole 1112; the first through hole 1111 is opened in the second straight portion 112, and the second through hole 1112 is opened in the third straight portion 113; the first through hole 1111 and the second through hole 1112 are opposite to each other.

[0077] When the substrate 1 is formed using the folding method in the previous embodiment, there is a folding gap between the second flat portion 112 and the third flat portion 113. The electrolyte may leak to the outside through this folding gap when passing through the detection channel. To solve this problem, a second encapsulation structure 6 needs to be added between the second flat portion 112 and the third flat portion 113 to connect the right end of the first through hole 1111 and the left end of the second through hole 1112 through a closed cavity (i.e., the second encapsulation area 7) to prevent electrolyte leakage. The second encapsulation structure 6 can be encapsulated using a plastic frame or heat-sealed using heat-sealing adhesive.

[0078] Optionally, refer to Figures 5 to 7 The second encapsulation structure 6 includes a third frame 61 and a third flexible cover plate 62;

[0079] The third frame 61 includes a U-shaped frame 611 and a closed-loop frame 612; one side of the U-shaped frame 611 is connected to the side of the second straight portion 112 facing the third straight portion 113, and the other side of the U-shaped frame 611 is connected to the side of the third straight portion 113 facing the second straight portion 112; the open end of the U-shaped frame 611 is connected to the closed-loop frame 612; one side of the closed-loop frame 612 is connected to the side of the first straight portion 121 facing away from the detection through hole 111 and the side of the fourth straight portion 122 facing away from the detection through hole 111; the third flexible cover plate 62 covers the other side of the closed-loop frame 612;

[0080] The second encapsulation area 7 is formed by the base 1, the U-shaped frame 611, the closed-loop frame 612, and the third flexible cover plate 62.

[0081] like Figure 7 As shown, the U-shaped frame 611 has its opening facing downwards. The U-shaped frame 611 encloses a semi-closed chamber between the second straight portion 112 and the third straight portion 113, restricting the electrolyte flowing through the detection channel from the opening of the U-shaped frame 611 into the lower closed-loop frame 612. The third flexible cover plate 62 can seal the lower part of the closed-loop frame 612, thereby encapsulating the electrolyte within the second encapsulation area 7 formed by the substrate 1, the U-shaped frame 611, the closed-loop frame 612, and the third flexible cover plate 62. While achieving encapsulation, the U-shaped frame 611 and the closed-loop frame 612 also provide some support for the folded substrate 1. The closed-loop frame 612 can serve as the base for the entire three-dimensional battery used for in-situ measurement, thereby improving the structural stability of the three-dimensional battery used for in-situ measurement.

[0082] Optionally, refer to Figures 5 to 8The second straight portion 112 is provided with a cutting line 16, and the cutting line 16 and the first fold line 13 enclose a cutting area 17; the cutting area 17 rotates around the first fold line 13 to pass through the second through hole 1112, so that the second straight portion 112 forms a first through hole 1111; the first electrode 2 is connected to the cutting area 17, and a detection channel is formed between the edge of the first through hole 1111 and the first electrode 2.

[0083] In the specific manufacturing process, after the first electrode 2 and the second electrode 3 are attached to the substrate 1, the portion of the substrate 1 located at the edge of the first electrode 2 is first cut along the cutting line 16 to form a cutting area 17. Then, the substrate 1 is folded along the first fold line 13, the second fold line 14, and the third fold line 15. Then, the cutting area 17 is rotated around the first fold line 13 and inserted into the second through hole 1112. At this time, the empty portion of the second straight portion 112 forms the first through hole 1111. When the first through hole 1111 and the second electrode 2 are attached to the substrate 1, the cutting area 17 is first cut along the cutting line 16 to form a cutting area 17. After the two through holes 1112 are stacked, the smaller of the two through holes 1111 and 1112 forms the detection through hole 111. In order to ensure that the cutting area 17 can pass smoothly through the second through hole 1112, the area of ​​the first through hole 1111 is preferably set to be smaller than the area of ​​the second through hole 1112. The first electrode 2 can be located on both sides of the first fold line 13 to ensure that the center point of the first electrode 2 is located directly below the second electrode 3 after folding, thereby improving the electric field and ion transport efficiency between the first electrode 2 and the second electrode.

[0084] The second through hole 1112 can be formed by the same cutting method as the first through hole 1111, and the cutting area is completely removed, leaving only the second through hole 1112. This makes the structure of the base 1 simpler and improves the flatness of the first flat part 121 and the fourth flat part 122 after folding.

[0085] Optionally, refer to Figure 5 and Figure 9 In the third embodiment, the smaller of the first through hole 1111 and the second through hole 1112 is a semi-circular through hole, and the arc segment of the semi-circular through hole forms a detection channel with the first electrode 2.

[0086] Taking the first through-hole 1111 as an example, the semi-circular cut area 17 has no sharp edges, making it easier to pass through the second through-hole 1112 without causing structural damage. Furthermore, since the spot of the probe light is usually circular, especially in confocal microscope systems, the semi-circular probe through-hole 111 is more aesthetically pleasing than the circular spot, thus facilitating subsequent in-situ measurement operations. The semi-circular through-hole can be directly cut using the semi-circular cutting line 16, or the cutting line 16 can be set as... Figure 9 It is obtained by cutting out the semi-circular ring shown.

[0087] Optionally, refer to Figure 10 In the fourth embodiment, the three-dimensional battery for in-situ measurement includes a collector electrode 8, which is printed on or attached to a substrate 1; the collector electrode 8 is connected to a first electrode 2, and / or the collector electrode 8 is connected to a second electrode 3.

[0088] By setting the collector electrode 8, it is convenient to perform charging and discharging operations on the first electrode 2 and the second electrode 3. The collector electrode 8 can be directly printed on the substrate 1, or it can be an independent collector electrode strip and fixed to the substrate 1 by bonding.

[0089] Optionally, refer to Figure 11 In the fifth embodiment, the second electrode 3 has a first flow hole 31 and the vertical part 11 has a second flow hole 114; the first flow hole 31 and the second flow hole 114 are connected.

[0090] By providing the first flow-through hole 31 and the second flow-through hole 114, the electrolyte can flow through the left and right sides of the vertical part 11, allowing the electrolyte to fully contact the two second electrodes 3 respectively provided on the left and right sides of the vertical part 11, thereby further improving the electrochemical reaction effect between the first electrode 2, the second electrode 3 and the electrolyte layer.

[0091] It should be noted that other aspects of the three-dimensional battery for in-situ measurement disclosed in this invention can be found in the prior art, and will not be repeated here.

[0092] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A stereoscopic battery for in-situ measurement, characterized by, The stereoscopic battery for in-situ measurement comprises: a substrate having a vertical part and a horizontal part, the vertical part being connected to the horizontal part, the vertical part being provided with a detection through hole; a first electrode connected to the horizontal part, the first electrode being arranged in the detection through hole, a detection channel being formed between the edge of the detection through hole and the first electrode; a second electrode connected to the vertical part, the detection channel being located between the second electrode and the first electrode; an electrolyte layer arranged in the detection channel, the electrolyte layer being in contact with the first electrode and the second electrode.

2. The stereoscopic battery for in-situ measurement according to claim 1, wherein, The included angle between the vertical part and the horizontal part is 0-90°; and / or, the second electrode is connected to a first side of the vertical part and / or a second side of the vertical part; the first side is opposite to the second side.

3. The stereoscopic battery for in-situ measurement according to claim 1, wherein The stereoscopic battery for in-situ measurement comprises a first packaging structure; the first packaging structure is connected to the substrate, and a first packaging area is formed between the first packaging structure and the substrate; the first electrode, the second electrode and the detection through hole are located in the first packaging area; the electrolyte layer comprises an electrolyte, and the electrolyte is filled in the first packaging area.

4. The stereoscopic battery for in-situ measurement according to claim 3, wherein, The first packaging structure comprises a first glue frame, a second glue frame, a first flexible cover plate and a second flexible cover plate, and the first packaging area comprises a first sub-area and a second sub-area; one side of the first glue frame is connected to one side of the vertical part and one side of the horizontal part facing the vertical part, and the other side of the first glue frame is covered by the first flexible cover plate; the substrate, the first glue frame and the first flexible cover plate form the first sub-area; one side of the second glue frame is connected to the other side of the vertical part and one side of the horizontal part facing the vertical part, and the other side of the second glue frame is covered by the second flexible cover plate; the substrate, the second glue frame and the second flexible cover plate form the second sub-area; the detection through hole communicates the first sub-area and the second sub-area.

5. The stereoscopic battery for in-situ measurement according to claim 1, wherein, The substrate is a flexible structure, and the substrate is folded along a first folding line, a second folding line and a third folding line to form a first flat part, a second flat part, a third flat part and a fourth flat part; the first folding line is located between the first flat part and the second flat part, the second folding line is located between the second flat part and the third flat part, and the third folding line is located between the third flat part and the fourth flat part; the second flat part is attached to the third flat part, the first flat part and the second flat part form a first included angle, and the fourth flat part and the third flat part form a second included angle; the second flat part and the third flat part constitute the vertical part, and the first flat part and the fourth flat part constitute the horizontal part.

6. The stereoscopic battery for in-situ measurement according to claim 5, wherein The stereoscopic battery for in-situ measurement comprises a second packaging structure; the second packaging structure is arranged between the second flat part and the third flat part, and a second packaging area is formed between the second packaging structure and the substrate; The detection through hole is located in the second packaging area.

7. The stereoscopic battery for in-situ measurement according to claim 6, wherein, The second packaging structure comprises a third glue frame and a third flexible cover plate; The third glue frame comprises a U-shaped frame body and a closed loop frame body; one side surface of the U-shaped frame body is connected to one side surface of the second flat part facing the third flat part, the other side surface of the U-shaped frame body is connected to one side surface of the third flat part facing the second flat part, the open end of the U-shaped frame body is connected to the closed loop frame body, and one side surface of the closed loop frame body is connected to one side surface of the first flat part away from the detection through hole and one side surface of the fourth flat part away from the detection through hole; the third flexible cover plate covers the other side surface of the closed loop frame body; The second packaging area is enclosed by the substrate, the U-shaped frame body, the closed loop frame body and the third flexible cover plate.

8. The stereoscopic battery for in-situ measurement according to claim 5, wherein, The detection through hole comprises a first through hole and a second through hole; the first through hole is arranged in the second flat part, and the second through hole is arranged in the third flat part; the first through hole is opposite to the second through hole.

9. The stereoscopic battery for in-situ measurement according to claim 8, wherein, The second flat part is provided with a cutting line, and a cutting piece area is enclosed between the cutting line and the first fold line; the cutting piece area is rotated around the first fold line to be arranged in the second through hole, so that the second flat part forms the first through hole; the first electrode is connected to the cutting piece area, and the edge of the first through hole and the first electrode form the detection channel; Furthermore, the smaller one of the first through hole and the second through hole is a semicircular through hole, and the arc segment of the semicircular through hole and the first electrode form the detection channel.

10. The stereoscopic battery for in-situ measurement according to claim 1, wherein, The stereoscopic battery for in-situ measurement comprises a collector, which is printed on or pasted on the substrate; the collector is in communication with the first electrode and / or the second electrode; Furthermore, the second electrode is provided with a first overflow through hole, and the vertical part is provided with a second overflow through hole; the first overflow through hole and the second overflow through hole are in communication.

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