An electrode sheet measuring device

Abstract

The utility model discloses an electrode plate measuring device, this electrode plate measuring device includes seat body and sets up the measuring assembly, first fixed base, second fixed base on seat body, specifically, measuring assembly is connected with seat body for measuring the thickness of electrode plate, first fixed base and second fixed base set up in seat body, first fixed base has seted up first gap, and second fixed base has seted up second gap, and first gap and second gap are used for clamping electrode plate and straightening electrode plate respectively. Compared with prior art, the electrode plate of the present application is tensioned at the same time, and the front and back surfaces of the electrode plate are not attached to the flat plate, which facilitates the measurement of the thickness of the electrode plate.

Description

Technical Field

[0001] This utility model relates to the field of measuring tools, and in particular to an electrode measuring device. Background Technology

[0002] The thinning of the positive and negative electrode areas has a significant impact on the performance of lithium-ion batteries. Thinning the electrodes reduces the battery's internal resistance, improving discharge performance and charging speed. However, excessive thinning increases safety risks. Therefore, it is necessary to accurately measure the dimensions of the thinned areas of the positive and negative electrodes during production and precisely control the degree of thinning to ensure that battery performance meets design expectations. After thinning, the electrode thickness is further reduced, resulting in a significant decrease in stiffness. This necessitates flattening the electrode on a flat plate before measurement. However, the flattening process interferes with the measurement of electrode thickness. Therefore, a measuring device capable of quickly and accurately measuring the electrode thinning condition is needed. Utility Model Content

[0003] One objective of this invention is to provide an electrode measuring device that addresses the technical problem that electrodes become relatively soft and difficult to measure after being thinned.

[0004] To achieve the above objectives, the present invention provides a solution as follows: an electrode measuring device, which includes a base and a measuring component, a first fixing seat, and a second fixing seat disposed on the base. Specifically, the measuring component is connected to the base and is used to measure the thickness of the electrode. The first fixing seat and the second fixing seat are disposed on the base. The first fixing seat has a first slit, and the second fixing seat has a second slit. The first slit and the second slit are respectively used to clamp the electrode and straighten the electrode.

[0005] In some embodiments of this application, the first fixing base includes a first arm, a second arm, and a first locking member. A first gap is formed between the first arm and the second arm. A first locking hole is provided on the first arm, and the first locking member passes through the first locking hole and is connected to the second arm.

[0006] In some embodiments of this application, the first fixing seat further includes a first clamping tooth and a second clamping tooth. The first clamping tooth is disposed on the side of the first arm near the second arm, and the second clamping tooth is disposed on the side of the second arm near the first arm. The first clamping tooth and the second clamping tooth engage to clamp the electrode sheet.

[0007] In some embodiments of this application, the electrode measuring device further includes a first crossbeam connected to the base, the extension direction of the first crossbeam being consistent with the line direction connecting the first slot and the second slot, a groove being formed on the first fixed base, and the first crossbeam passing through the groove and connected to the first fixed base.

[0008] In some embodiments of this application, a plurality of spaced protrusions are formed on the first crossbeam; the first fixing seat includes a first arm and a connecting pin, the first arm has a pin hole, and the connecting pin passes through the pin hole and is inserted between adjacent protrusions.

[0009] In some embodiments of this application, the connecting pin includes a pin seat, a pin head, and an elastic element. The pin head and pin seat are respectively connected to the two ends of the elastic element. The pin seat is embedded in the pin hole and fixedly connected to the first arm. The pin head is inserted between adjacent protrusions.

[0010] In some embodiments of this application, in the direction from the second fixed seat to the first fixed seat, the surface of the pin head near the first crossbeam gradually moves away from the first crossbeam.

[0011] In some embodiments of this application, the electrode measuring device further includes a vertical rod, which is fixedly connected to the base, a first crossbeam is rotatably connected to the vertical rod, and a first gap is located between the vertical rod and the second gap.

[0012] In some embodiments of this application, the second fixing base includes a third arm, a fourth arm, and a second locking member. A second gap is formed between the third arm and the fourth arm. A second locking hole is provided on the third arm, and the second locking member passes through the second locking hole and is connected to the fourth arm.

[0013] In some embodiments of this application, the measuring component includes a measuring tool and a second crossbeam. The second crossbeam is connected to the base, and the extension direction of the second crossbeam is consistent with the line direction connecting the first gap and the second gap. The measuring tool is slidably connected to the second crossbeam.

[0014] The beneficial effects of this utility model are as follows:

[0015] The first fixing seat and the second fixing seat are disposed on the base body. The first fixing seat has a first slit and the second fixing seat has a second slit. The first slit and the second slit are respectively used to clamp the electrode and straighten the electrode. The measuring component is connected to the base body and is used to measure the thickness of the electrode.

[0016] Compared with the prior art, the electrode measuring device of this application allows the electrode to be measured to be suspended while being tensioned during use, and neither the front nor back surface of the electrode is in contact with the plate, which facilitates the measurement of the electrode thickness. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of the electrode measuring device provided in this embodiment of the utility model; Figure 2 This is another overall structural schematic diagram of the electrode measuring device provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of the first fixing seat provided in this embodiment of the utility model; Figure 4 It is along Figure 3 Schematic diagram of the cross section of line AA; Figure 5 This is a schematic diagram of the structure of the first fixing seat provided in another embodiment of the present invention; Figure 6 It is along Figure 5 Schematic diagram of the cross section of the middle BB line; Figure 7 This is a schematic diagram of the structure of the second fixing seat provided in an embodiment of the present utility model.

[0019] Explanation of icon numbers: 10. Base; 20. Measuring component; 21. Measuring tool; 22. Second crossbeam; 30. First fixed base; 31. First slot; 32. First arm; 321. First locking hole; 322. Pin hole; 33. Second arm; 34. First locking element; 35. First clamping tooth; 36. Second clamping tooth; 37. Slide groove; 38. Connecting pin; 381. Pin seat; 382. Pin head; 383. Elastic element; 40. Second fixed base; 41. Second slot; 42. Third arm; 421. Second locking hole; 43. Fourth arm; 44. Second locking element; 50. First crossbeam; 60. Protrusion; 70. Vertical rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To reduce the internal resistance of batteries, thinning the electrode sheets is a common processing technique. The thickness of the thinned electrode sheet is an important indicator of the thinning process and is closely related to the quality of the electrode sheet. However, the thinned electrode sheets are relatively soft and usually need to be flattened on a flat plate for measurement, which poses a certain obstacle to the measurement of the electrode sheet thickness.

[0022] Please see Figures 1 to 2 As shown, Figure 1 This is a schematic diagram of the overall structure of the electrode measuring device provided in this embodiment of the utility model; Figure 2 This is another overall structural schematic diagram of the electrode measuring device provided in this embodiment of the utility model.

[0023] To solve the above-mentioned technical problems, this utility model discloses an electrode measuring device, which includes a base 10 and a measuring component 20, a first fixing seat 30, and a second fixing seat 40 disposed on the base 10. Specifically, the measuring component 20 is connected to the base 10 and is used to measure the thickness of the electrode. The first fixing seat 30 and the second fixing seat 40 are disposed on the base 10. The first fixing seat 30 has a first slit 31, and the second fixing seat 40 has a second slit 41. The first slit 31 and the second slit 41 are respectively used to clamp the electrode and straighten the electrode.

[0024] To more clearly describe the technical solution of this embodiment, the method of using the electrode measuring device provided in this embodiment is explained here: A strip-shaped section to be measured is cut from the thinned electrode sheet. The two ends of the section to be measured are defined as the first end and the second end. The first end and the second end are respectively placed into the first clamp 31 and the second clamp 41 and fixed to make the section to be measured taut. It should be noted that the two sides of the taut electrode sheet should be flat and there should be no twisting or wrinkling. The thickness of the electrode sheet is measured using the measuring component 20 to obtain the thickness of the thinned electrode sheet.

[0025] Please refer to the following: Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram of the structure of the first fixing base 30 provided in this embodiment of the utility model; Figure 4 It is along Figure 3 A cross-sectional view of line AA in the middle.

[0026] In some embodiments of this application, the first fixing base 30 includes a first arm 32, a second arm 33 and a first locking member 34. A first gap 31 is formed between the first arm 32 and the second arm 33. A first locking hole 321 is provided on the first arm 32. The first locking member 34 passes through the first locking hole 321 and is connected to the second arm 33.

[0027] This embodiment discloses a specific structure of a first fixing base 30. The first arm 32 and the second arm 33 are designed separately. When they are joined together, they clamp one end of the electrode to be tested. A first locking member 34 passes through a first locking hole 321 and is fixedly connected to the second arm 33, thereby achieving overall locking of the first arm 32, the second arm 33, and the electrode. The first locking member 34 can be a bolt, rivet, buckle, etc., preferably a bolt, to facilitate assembly and disassembly.

[0028] Furthermore, the first fixing seat 30 also includes a first clamping tooth 35 and a second clamping tooth 36. The first clamping tooth 35 is disposed on the side of the first arm 32 near the second arm 33, and the second clamping tooth 36 is disposed on the side of the second arm 33 near the first arm 32. The first clamping tooth 35 and the second clamping tooth 36 engage to clamp the electrode sheet.

[0029] In practical applications, the engagement of the first clamping tooth 35 and the second clamping tooth 36 will deform the electrode sheet, so that when the electrode sheet tends to slip off the first fixing seat 30, it is necessary not only to overcome the friction between the first arm 32 and the second arm 33, but also to overcome the component force of the inclined surface support force of the first clamping tooth 35 and the second clamping tooth 36, making the clamping more stable.

[0030] In some embodiments of this application, the electrode measuring device further includes a first crossbeam 50 connected to the base body. The extension direction of the first crossbeam 50 is consistent with the line direction connecting the first slot 31 and the second slot 41. A groove 37 is formed on the first fixed base 30. The first crossbeam 50 passes through the groove 37 and is connected to the first fixed base 30.

[0031] The first crossbeam 50 cooperates with the slide groove 37, allowing the first fixed seat 30 to slide on the crossbeam, moving away from or closer to the second fixed seat 40. In this embodiment, the two ends of the electrode can be clamped in the first fixed seat 30 and the second fixed seat 40 first, and then the first fixed seat 30 can be moved away from the second fixed seat 40 to tension the electrode, without having to straighten the electrode while clamping it, thus simplifying the operation steps.

[0032] Please refer to the following: Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of the structure of the first fixing base 30 provided in another embodiment of the present invention; Figure 6 It is along Figure 5 A cross-sectional view of the BB line.

[0033] Furthermore, a plurality of spaced protrusions 60 are formed on the first crossbeam 50; the first fixing seat 30 includes a first arm 32 and a connecting pin 38, the first arm 32 has a pin hole 322, and the connecting pin 38 passes through the pin hole 322 and is inserted between adjacent protrusions 60.

[0034] The connecting pin 38 is inserted between adjacent protrusions 60 to lock the first crossbeam 50 and the first fixed seat 30. Compared with relying on friction to lock the first crossbeam 50 and the first fixed seat 30, the pin locking method is more stable and less prone to loosening. Moreover, when the connecting pin 38 is not inserted into the protrusion 60, the first fixed seat 30 in this embodiment slides more flexibly.

[0035] Furthermore, the connecting pin 38 includes a pin seat 381, a pin head 382, ​​and an elastic element 383. The pin head 382 and the pin seat 381 are respectively connected to the two ends of the elastic element 383. The pin seat 381 is embedded in the pin hole 322 and fixedly connected to the first arm 32. The pin head 382 is inserted between adjacent protrusions 60.

[0036] In this embodiment, the connecting pin 38 includes a pin seat 381, a pin head 382, ​​and an elastic element 383. The pin seat 381 is embedded in the pin hole 322 and fixedly connected to the first arm 32. The pin head 382 is connected to the pin seat 381 via the elastic element 383, that is, elastically connected to the first arm 32. When the pin head 382 is aligned with the protrusions 60, the elastic element 383 automatically pushes the pin head 382 out, eliminating the trouble of manually inserting and removing the connecting pin 38. The sliding and locking of the first fixed seat 30 is simpler and more convenient.

[0037] Furthermore, in the direction from the second fixed seat 40 to the first fixed seat 30, the surface of the pin head 382 near the first crossbeam gradually moves away from the first crossbeam.

[0038] The inclined pin 382 causes the first fixed seat 30 to move away from the second fixed seat 40, and the pin 382 will automatically spring up under the action of the component force of the interaction force with the protrusion 60 to release the lock, so as to facilitate the movement of the first fixed seat 30. When the first fixed seat 30 moves towards the second fixed seat 40, that is, when the electrode tends to loosen, the pin 382 locks with the protrusion 60 to keep the electrode in a taut state for measurement.

[0039] In some embodiments of this application, the electrode measuring device further includes a vertical rod 70, which is fixedly connected to the base body, a first crossbeam 50 is rotatably connected to the vertical rod 70, and a first gap 31 is located between the vertical rod 70 and the second gap 41.

[0040] During the process of clamping the electrode sheet in the first clamping slot 31 and the second clamping slot 41, due to the existence of operational errors, the electrode sheet may have a certain degree of flexural deformation. The rotation of the first crossbeam 50 relative to the vertical rod 70 can release this part of the flexural deformation and straighten the electrode sheet. The first clamping slot 31 is located between the vertical rod 70 and the second clamping slot 41 so that the first crossbeam 50 will not cause the electrode sheet to loosen significantly when it rotates.

[0041] Please refer to the following: Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of the second fixing seat 40 provided in this embodiment of the utility model.

[0042] In some embodiments of this application, the second fixing base 40 includes a third arm 42, a fourth arm 43 and a second locking member 44. A second gap 41 is formed between the third arm 42 and the fourth arm 43. A second locking hole 421 is provided on the third arm 42. The second locking member 44 passes through the second locking hole 421 and is connected to the fourth arm 43.

[0043] This embodiment discloses a specific structure of the second fixing base 40. The third arm 42 and the fourth arm 43 are designed separately. When they are joined together, they clamp one end of the electrode to be tested. The second locking member 44 passes through the second locking hole 421 and is fixedly connected to the fourth arm 43, thereby realizing the overall locking of the third arm 42, the fourth arm 43 and the electrode. The second locking member 44 can be a bolt, rivet, buckle, etc., preferably a bolt, to facilitate assembly and disassembly.

[0044] In some embodiments of this application, the measuring component 20 includes a measuring tool 21 and a second crossbeam 22. The second crossbeam 22 is connected to the base 10. The extending direction of the second crossbeam 22 is consistent with the line direction connecting the first gap 31 and the second gap 41. The measuring tool 21 is slidably connected to the second crossbeam 22.

[0045] The measuring tool 21 slides on the second crossbeam 22, which can further measure the length of the electrode thinning area and obtain measurement data in more dimensions.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0047] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0048] Furthermore, the use of terms such as "first" and "second" in this utility model is 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the design concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electrode measuring device, characterized in that, include: seat body; A measuring component, connected to the base, is used to measure the thickness of the electrode sheet; A first fixing seat and a second fixing seat are disposed on the seat body. The first fixing seat has a first slit and the second fixing seat has a second slit. The first slit and the second slit are respectively used to clamp the electrode and straighten the electrode.

2. The electrode measuring device according to claim 1, characterized in that, The first fixing base includes a first arm, a second arm, and a first locking member. The first gap is formed between the first arm and the second arm. The first arm has a first locking hole, and the first locking member passes through the first locking hole and is connected to the second arm.

3. The electrode measuring device according to claim 2, characterized in that, The first fixing seat further includes a first clamping tooth and a second clamping tooth. The first clamping tooth is disposed on the side of the first arm near the second arm, and the second clamping tooth is disposed on the side of the second arm near the first arm. The first clamping tooth and the second clamping tooth engage to clamp the electrode sheet.

4. The electrode measuring device according to claim 1, characterized in that, The electrode measuring device further includes a first crossbeam connected to the base, the extension direction of the first crossbeam being consistent with the line connecting the first and second gaps, a groove being formed on the first fixed base, the first crossbeam passing through the groove and being connected to the first fixed base.

5. The electrode measuring device according to claim 4, characterized in that, The first crossbeam has multiple spaced protrusions; The first fixing base includes a first arm and a connecting pin. A pin hole is formed on the first arm, and the connecting pin passes through the pin hole and is inserted between adjacent protrusions.

6. The electrode measuring device according to claim 5, characterized in that, The connecting pin includes a pin seat, a pin head, and an elastic element. The pin head and pin seat are respectively connected to the two ends of the elastic element. The pin seat is embedded in the pin hole and fixedly connected to the first arm. The pin head is inserted between adjacent protrusions.

7. The electrode measuring device according to claim 6, characterized in that, In the direction from the second fixed seat to the first fixed seat, the surface of the pin head near the first crossbeam gradually moves away from the first crossbeam.

8. The electrode measuring device according to claim 4, characterized in that, The electrode measuring device further includes a vertical rod, which is fixedly connected to the base body. The first crossbeam is rotatably connected to the vertical rod, and the first gap is located between the vertical rod and the second gap.

9. The electrode measuring device according to any one of claims 1-8, characterized in that, The second fixing base includes a third arm, a fourth arm, and a second locking member. A second gap is formed between the third arm and the fourth arm. A second locking hole is provided on the third arm. The second locking member passes through the second locking hole and is connected to the fourth arm.

10. The electrode measuring device according to any one of claims 1-8, characterized in that, The measuring component includes a measuring tool and a second crossbeam. The second crossbeam is connected to the base body, and the extension direction of the second crossbeam is consistent with the line direction connecting the first gap and the second gap. The measuring tool is slidably connected to the second crossbeam.

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