Adjusting device for a coating device, coating device, and method for partially coating a material web

Abstract

The invention relates to an adjusting device (6) for a coating device (1), wherein the adjusting device (6) comprises a cam (8) and an adjusting element (9) that contacts the cam (8), preferably rolls against the cam (8), and is adjustable when the cam (8) rotates, preferably a linearly adjustable adjusting element (9), wherein the adjusting device (6) comprises a receptacle (10) for a roll, roller (2, 2.2) or coating unit (3, 3.2) and the adjusting element (9) and the receptacle (10) are mechanically coupled such that when the adjusting element (9) is adjusted, the receptacle (10) is adjusted, preferably linearly adjusted. The invention also relates to a coating device and to a method.

Description

[0001] Adjustment device for a coating device, coating device and method for section-wise coating of a web

[0002] Description

[0003] The invention relates to an adjustment device for a coating device for sectionally coating a web of material, a coating device for sectionally coating a web of material and a coating method.

[0004] For example, webs of material are coated during film production to enhance plastic films. Similarly, in electrode production, an electrode or at least an electrode precursor can be produced by coating a metal foil.

[0005] In such coating processes, a coating agent is applied to the web of material using a roller. The web of material is essentially endless and often has a length of several hundred meters to several kilometers.

[0006] An uncoated section can be provided between each coated section, i.e., the web can be coated in sections or intermittently. Corresponding coating methods and coating devices are known, for example, from DE 10 2014 118524 ​​A1 or EP 2 922 126 A1.

[0007] For intermittent or section-by-section coating, the coating unit must be moved back and forth in one direction, usually perpendicular, to the web. To apply coating material to a section to be coated, the coating unit must typically be located close to the web, whereas it must be, or at least should be, farther away from the web if no coating material is to be applied to a section not to be coated.

[0008] The corresponding speeds and accelerations of the coating unit can have a detrimental impact on quality, particularly on the accuracy of maintaining specified coating dimensions or sections, especially at high web speeds. The known processes are therefore limited to comparatively low web feed speeds, so that coating a web takes a relatively long time.

[0009] Furthermore, conventional adjustment mechanisms and devices cause the coating unit to adjust relatively smoothly or with vibrations, which also have a negative impact on the quality of the coating. Furthermore, rapid adjustment with high responsiveness is desirable.

[0010] It is therefore an object of the present invention to provide an adjustment device, a coating device, and a method for coating a web in sections, with which a web can be coated flexibly and in sections, even at very high feed speeds. The adjustment unit according to the invention is also characterized by extremely smooth operation at high adjustment speeds.

[0011] This object is achieved by an adjusting device according to claim 1, a coating device according to claim 7 and a method according to claim 11. Advantageous embodiments are the subject of the respective subclaims.

[0012] A first aspect of the invention relates to an adjusting device for a coating device, wherein the adjusting device has a cam, an adjusting element contacting the cam and adjustable upon rotation of the cam, wherein the adjusting device has a receptacle for a roller, roll or coating device and the adjusting element and the receptacle are mechanically coupled such that upon adjustment of the adjusting element, the receptacle is adjusted.

[0013] The cam and the adjustment element can result in a mechanically stable and error-free adjustment. The adjustment unit runs very smoothly. The adjustment element can be rapidly accelerated and / or can have a high adjustment speed. This allows the adjustment unit to be highly responsive.

[0014] The adjusting element can roll on the cam. The adjusting element and / or the cam can be arranged such that the adjusting element can roll on the cam. The adjusting element and / or the receptacle can be linearly adjustable. For example, the adjusting device can have one or more linear guides for linear adjustment of the adjusting element and / or the receptacle.

[0015] The cam can have a transition section. The diameter of the cam can change along the transition section, so that the adjustment element can be adjusted when the adjustment element rolls along the transition section. Alternatively or additionally, the cam can be mounted eccentrically. If the cam is mounted eccentrically, it can be provided that the adjustment element can be adjusted when the cam rotates.

[0016] The transition section can be arranged on a surface of the cam in an angular range of 10° to 20°, preferably 15°. Alternatively or additionally, the diameter of the cam can change along the transition section by a value between 0.1 mm and 5 mm, preferably between 0.5 mm and 2 mm, particularly preferably by 1 mm.

[0017] The adjustment device can have a stop. The stop can define a maximum adjustment range of the adjustment element and / or the receptacle. In some embodiments, the maximum adjustment range can be less than or equal to 5 mm, preferably less than or equal to 2 mm, particularly preferably less than or equal to 1 mm. The stop can be arranged such that it can contact the adjustment element and / or the receptacle when the latter is or will be adjusted by the maximum adjustment range. The stop allows the adjustment range of the adjustment element to be set and / or specified accurately and precisely.

[0018] A first point of the adjustment path, for example no or minimal adjustment, can correspond to a first position (or a third position) of the receptacle and / or a first position (or a third position) of an object received or stored in the receptacle, such as a support roller or a coating unit. A second point of the adjustment path, for example a maximum adjustment, can correspond to a second position (or a fourth position) of the receptacle and / or a first position (or a fourth position) of an object received or stored in the receptacle, such as a support roller or a coating unit.

[0019] The cam can have a diameter of 70-90 mm, preferably between 75-85 mm, particularly preferably substantially 80 mm. Alternatively or additionally, the adjusting element can have a diameter of 40 mm to 55 mm, preferably 25 mm to 50 mm, particularly preferably 47 mm. In some embodiments, the diameter of the cam can be measured without a thickening or defined if the cam has a thickening. In some embodiments, however, it can also be provided that the diameter of the cam includes the thickening.

[0020] The cam and / or the adjusting element can be plasma nitrided. Plasma nitriding can ensure a long service life for the cam and / or the adjusting element and / or make the adjusting unit low-maintenance.

[0021] A further aspect of the invention relates to a coating device for coating a web of material in sections, wherein the coating arrangement has a first support roller and a second support roller for guiding the web of material, as well as a first coating unit for applying a first coating agent and a second coating unit for applying a second coating agent to the web of material, wherein the first support roller and the first coating unit form a first gap and the second support roller and the second coating unit form a second gap for guiding a web of material through, and wherein the coating device has a first adjusting device and a second adjusting device, wherein the first adjusting device is designed to move the first support roller and / or the first coating unit between a first position and a second position in which the first gap is smaller than in the first position,to adjust, and the second adjusting device is configured to adjust the second support roller and / or the second coating unit between a third position and a fourth position in which the second gap is smaller than in the third position, so that when a web of material is guided through the first gap and the second gap, the web of material can be coated alternately by the first coating unit and the second coating unit.,

[0022] Because the coating device has a first coating unit and a second coating unit that can be adjusted separately from one another, a section of the web can be coated by one coating unit while another section of the web is not coated or is not coated by the other coating unit. It can be provided that the first coating unit only coats every other section, and the second coating unit coats the section omitted by the first coating unit, or vice versa. Because the coating device has a second coating unit, the time during which one coating unit is adjusted can be used for coating by the other coating unit.

[0023] The coating device according to the invention thus enables section-by-section, intermittent, and / or alternating coating of the web at high web feed speeds. Compared to known coating units and methods, some embodiments of the coating device according to the invention can achieve three to five times the web feed speed while maintaining good coating quality. While known coating methods and coating devices can coat webs at a feed speed of approximately 60 to 80 m / min, the coating device according to the invention (and the corresponding method according to the invention) can coat webs at feed speeds of 200 to 300 m / min, or even at even higher feed speeds.

[0024] In some embodiments, the feed rate can be so high that a point on the web can traverse the distance between the first and second coating units within a time of, for example, only 0.1 s or less, for example 0.5 s or less, for example 0.8 s or less, or for example 2 s or less. Due to the adjustment units, which enable rapid adjustment, and the first and second coating units, which can alternately coat sections of the web, the web can be coated with high coating quality despite their high feed rates. Furthermore, a compact design of the coating device is enabled.

[0025] The first and / or second adjustment device can be or comprise an adjustment device as described above. The second gap can be arranged behind the first gap in the guide direction of the web.

[0026] In other words, it can be provided that when a web of material is guided by the first support roller or is guided through the first gap, in the second position the first coating unit can apply or applies a first coating agent to the web of material, and in the first position the first coating unit cannot apply or does not apply a first coating agent to the web of material.

[0027] It can be provided that, when one or the web of material is guided by the second support roller or is guided through the second gap, in the fourth position the second coating unit can apply or applies a second coating agent to the web of material, and in the third position the second coating unit cannot apply a second coating agent to the web of material or does not apply a second coating agent.

[0028] In some embodiments, the first coating agent and the second coating agent may be identical and / or have the same components and / or the same composition. In some other embodiments, the first coating agent and the second coating agent may be different and / or have different components and / or a different composition. The web may be or comprise a metal foil. The coating agent may be or comprise an electrode precursor material.

[0029] The first position may correspond to minimal or no adjustment of the first adjustment unit, the first support roller, and / or the first coating unit. The third position may correspond to maximum adjustment of the first adjustment unit, the first support roller, and / or the first coating unit. The second position may correspond to minimal or no adjustment of the second adjustment unit, the second support roller, and / or the second coating unit. The fourth position may correspond to maximum adjustment of the second adjustment unit, the second support roller, and / or the second coating unit.

[0030] The adjustment device can be mechanically coupled to one or the corresponding coating unit and / or one or the corresponding support roller.

[0031] It can be provided that, when the first support roller and / or the first coating unit is in the first position, the second support roller and / or the second coating unit can be in the fourth position, and / or when the first support roller and / or the first coating unit is in the second position, the second support roller and / or the second coating unit can be in the third position. This allows one coating unit to coat every second section to be coated, and the other coating unit to coat the omitted section to be coated.

[0032] The first coating unit and / or the second coating unit can be or comprise a slot die, a coating roller, and / or a gravure roller. The first and / or second coating unit can be configured to apply coating agent via indirect coating. Alternatively, the first and / or second coating unit can be configured to apply coating agent via direct coating.

[0033] It can be provided that the first support roller can be adjusted by the first adjustment device and the second support roller by the second adjustment device, and that the first coating unit and the second coating unit cannot be adjusted. The first and / or second coating unit can be fixedly arranged on or in the coating device. It can be provided that in the second position the first support roller can be spaced further from the first coating unit than in the first position, and in the third position the second support roller can be spaced further from the second coating unit than in the fourth position.

[0034] If one or more of the support rollers is / are adjusted by one or more corresponding adjustment units, the material web can be adjusted to the corresponding coating unit. The corresponding coating unit can be permanently arranged, mounted, and / or mounted on or in the coating device. If a coating device is fixed and / or not adjustable, the corresponding acceleration of the corresponding coating agent due to adjustment by an adjustment device can also be eliminated, thus resulting in a good coating quality.

[0035] In some embodiments, it may be provided to control and / or regulate the coating device and / or the first coating unit and / or the second coating unit in such a way that the coating agent can be or will be applied to predetermined sections of the web and / or cannot be or will not be applied to predetermined sections of the web.

[0036] The web of material can rest on the first support roller and / or be or be supported by the first support roller when the web of material is or is being guided through the first gap. The first coating unit can apply the first coating agent to the web of material, for example, by the first coating unit contacting and / or touching the web of material. Alternatively or additionally, the first coating unit can apply the first coating agent to the web of material, for example, by the first coating unit being at least close enough to the web of material for the first coating agent to be or be applied to the web of material.

[0037] The web of material can rest on the second support roller and / or be or be supported by the second support roller when the web of material is or is being guided through the second gap. The second coating unit can apply the second coating agent to the web of material, for example, by the second coating unit contacting and / or touching the web of material. Alternatively or additionally, the second coating unit can apply the second coating agent to the web of material, for example, by the second coating unit being at least close enough to the web of material for the second coating agent to be or be applied to the web of material.

[0038] The first and / or second coating unit can be or comprise a gravure roller. Alternatively or additionally, the first and / or second coating unit can be or comprise an applicator roller. The first and / or second coating unit can comprise a metering roller that can contact the applicator roller and / or deliver coating agent to the applicator roller.

[0039] The coating device can have a bearing in or with which the first and / or second coating unit can be mounted, e.g. if the first and / or second coating unit are or comprise rollers or rolls. The coating device can have a support roller bearing in or with which the support roller can be mounted. It can be provided that the receptacle of the adjusting device can be, form or have a bearing or receptacle for a roller or roll. The adjusting device can be designed to adjust an axis of rotation of the first and / or second coating unit, e.g. if the first and / or second coating unit each has a roller and / or roll. Alternatively or additionally, the adjusting device can be designed to adjust an axis of rotation of the first and / or second support roller.In some embodiments, at least one drying device can be provided behind the coating device, for example, in the transport direction of a web or the web of material. The drying device can be configured to dry the applied coating agent.

[0040] Yet another aspect of the invention relates to a method for coating a web of material in sections, comprising the following steps: a) guiding a web of material through a first gap formed by a first support roller and a first coating unit, and guiding the web of material through a second gap formed by a second support roller and a second coating unit; b) adjusting the first support roller and / or the first coating unit with a first adjusting device from a first position to a second position, wherein the first gap is smaller in the second position than in the first position, and adjusting the second support roller and / or the second coating unit with a second adjusting device from a fourth position to a third position, wherein the second gap is smaller in the fourth position than in the third position;c) applying a first coating agent with the first coating unit to the web of material guided through the first gap; and d) adjusting the first support roller and / or the first coating unit with the first adjusting device to the first position, and adjusting the second support roller and / or the second coating unit with the second adjusting device from the third position to the fourth position; and e) applying a second coating agent with the second coating unit to the web of material guided through the second gap.

[0041] The second gap can be arranged downstream of the first gap in the guide direction of the web. It can be provided that one method step, several, or all steps of the method can be carried out using a coating device described above. A coating device described above can be configured to carry out one method step, several, or all steps of the method.

[0042] Steps b) to e) can be repeated.

[0043] It can be provided that no second coating agent is applied when applying the first coating agent, and / or no first coating agent is applied when applying the second coating agent.

[0044] Step d) can be performed after a predetermined time interval has elapsed after step b) and / or c). In some embodiments, the predetermined time interval can be selected depending on the feed rate of the web. Alternatively or additionally, the predetermined time interval can be selected depending on the dimension of a section of the web to be coated. The dimension can be, for example, an area, length, and / or width, e.g., of the web and / or the section.

[0045] It can be provided that the first coating agent can be applied in or onto a first section of the material web, and the second coating agent can be applied in or onto a second section of the material web. It can be provided that the first section and the second section of the material web do not overlap or only partially overlap. It can be provided that the first section can be arranged on a first side of the material web, and the second section can be arranged on a second side arranged opposite the first side.

[0046] The material web can be or comprise a metal foil. The coating agent can be or comprise an electrode precursor material.

[0047] The invention is further explained with reference to the following figures. They show:

[0048] Fig. 1 : an exemplary embodiment of an inventive

[0049] coating device;

[0050] Fig. 2: an exemplary embodiment of an inventive

[0051] Adjustment device in a schematic representation;

[0052] Fig. 3: another exemplary embodiment of an inventive

[0053] adjustment device;

[0054] Fig. 4: yet another exemplary embodiment of an adjusting device according to the invention;

[0055] Fig. 5: exemplary curves of the adjustment path, adjustment speed and

[0056] Adjustment acceleration of an adjustment element;

[0057] Fig. 6: an exemplary embodiment of a coating system with a coating device according to the invention;

[0058] Fig. 7: another exemplary embodiment of a coating system with a coating device according to the invention

[0059] Fig. 8: an exemplary embodiment of a coated web; and Fig. 9: further exemplary embodiments of a coated web.

[0060] Figure 1 shows an exemplary embodiment of a coating device 1 according to the invention. The coating device 1 has a first support roller 2 and a first coating unit 3. The first coating unit 3 can be or have a coating roller or an engraved roller. In some embodiments, the first coating unit 3 can be or have a slot nozzle. A first gap 14 is formed between the first support roller 2 and the first coating unit 3. A web of material 4 can be or will be guided through the first gap 14. If a web of material 4 is or will be guided through the first gap 14, it can be or will be guided and / or supported by the first support roller 2.

[0061] The coating device 1 further comprises a second support roller 2.2 and a second coating unit 3.2. The second coating unit 3.2 can be or comprise a coating roller or an engraved roller. In some embodiments, the second coating unit 3.2 can be or comprise a slot nozzle. A second gap 14.2 is formed between the second support roller 2.2 and the second coating unit 3.2. The web of material 4, which can be guided through the first gap 14, can be or will be guided through the second gap 14.2. If a web of material 4 is or will be guided through the second gap 14.2, it can be or will be guided and / or supported by the second support roller 2.2.

[0062] The coating device 1 has a first adjustment device 6. The first adjustment device 6 can be configured to adjust the first support roller 2 and / or the first coating unit 3 between a first position and a second position. If the first support roller 2 and / or the first coating unit 3 is in the second position, the first coating unit 3 can apply a first coating agent 5 to the web 4 if the web 4 is or will be guided in the first gap 14 and / or between the first support roller 2 and the first coating unit 3. In the first position, the first support roller 2 and / or the first coating unit 3 can be arranged such that the first coating unit 3 does not apply and / or cannot apply a first coating agent 5 to the web 4. The coating device 1 further has a second adjustment device 6.2. The second adjustment device 6.2 can be configured to adjust the second support roller 2.2 and / or the second coating unit 3.2 between a third position and a fourth position. If the second support roller 2.2 and / or the second coating unit 3.2 is in the fourth position, the second coating unit 3.2 can apply a second coating agent 22 to the web 4 when the web 4 is or will be guided in the second gap 14.2 and / or between the second support roller 2.2 and the second coating unit 3.2. In the third position, the second support roller 2.2 and / or the second coating unit 3.2 can be arranged such that the second coating unit 3.2 does not apply and / or cannot apply a second coating agent 22 to the web 4.

[0063] The second support roller 2.2 may have some, several, or all of the features and / or advantages of the first support roller 2 and / or be structurally identical thereto. The second coating unit 3.2 may have some, several, or all of the features and / or advantages of the first coating unit 3 and / or be structurally identical thereto. The second adjustment device 6.2 may have some, several, or all of the features and / or advantages of the first adjustment device 6 and / or be structurally identical thereto.

[0064] It can be provided that the first coating unit 3 and / or the first support roller 2 is or can be adjusted periodically and / or repeatedly between the first position and the second position. It can be provided that after a predetermined time interval has elapsed, the first coating unit 3 and / or the first support roller 2 is or can be adjusted from the second position to the first position and / or vice versa. It can be provided that the second coating unit 3.2 and / or the second support roller 2.2 is or can be adjusted periodically and / or repeatedly between the third position and the fourth position. It can be provided that after a predetermined time interval has elapsed, the second coating unit 3.2 and / or the second support roller 2.2 is or can be adjusted from the fourth position to the third position and / or vice versa.In some embodiments, the predetermined time interval can be or will be selected depending on a feed speed of the web 4. Alternatively or additionally, the predetermined time interval can be or will be selected depending on a dimension of a section of the web 4 to be coated. This can result in section-by-section and / or intermittent coating of the web. “Intermittent” can mean section-by-section or temporary coating. It can be provided that the adjustment and / or the position of the first coating unit 3, the second coating unit 3.2, the first support roller 2 and / or the second support roller 2.2 are / is or will be controlled, for example to coat and / or not coat predetermined sections and / or sections with predetermined dimensions.

[0065] In some embodiments, the first support roller 2, the second support roller 2.2, the first coating unit 3 and / or the second coating unit 3.2 can be or will be adjusted in or against an adjustment direction V. In some embodiments, it can be provided that only the coating unit 3 is or will be adjusted, for example in or against adjustment direction V. In some embodiments, it can be provided that only the first support roller 2 and / or the second support roller 2.2 are / is or will be adjusted, for example in or against adjustment direction V.

[0066] The first support roller 2 and / or the second support roller 2.2 can be mounted in or with a respective support roller bearing. The first support roller 2 and / or the second support roller 2.2 can be mounted so as to be rotatable about a rotation axis, for example in or with the respective support roller bearing. The first coating unit 3 and / or the second coating unit 3.2 can be mounted in or with a respective coating unit bearing, for example if the first coating unit 3 and / or the second coating unit 3.2 is or has a coating roller or gravure roller. The first coating unit 3 and / or the second coating unit 3.2 can be mounted so as to be rotatable about a rotation axis, for example in or with the respective coating unit bearing. The support roller bearing and / or the coating unit bearing can, for example, have one or more rolling bearings.For example, a roll neck of the first support roller 2, the second support roller 2.2 and / or possibly the first coating unit 3 and / or the second coating unit 3,2, in particular if these are or have a coating roller or gravure roller, for example, can be mounted in or with the respective bearing and / or a rolling bearing.

[0067] Because the coating device 1 has a first coating unit 3 and a second coating unit 3.2, which can be adjusted separately from one another, a section of the web 4 can be coated by one coating unit when another section of the web 4 is not coated or is not coated by the other coating unit. It can be provided that the first coating unit 3 only coats every other section 18, 20, and the second coating unit 3.2 coats the section 23 omitted by the first coating unit, or vice versa. Because the coating device 1 has a second coating unit 3.2, the time in which one coating unit is adjusted can be used for coating by the other coating unit.

[0068] The coating device 1 enables section-wise or intermittent coating of the web 4 at high feed speeds of the web 4. The coating device 1 (and the corresponding method) can coat a web 4 section-wise or intermittently at feed speeds of 200 to 300 m / min, or even higher feed speeds.

[0069] In some embodiments, the feed rate can be so high that a point on the web 4 can cover the distance between the first coating unit 3 and the second coating unit 3.2, which can be located downstream of the first coating unit in the transport direction F of the web, within only 0.1 s or less, in some embodiments within 2 s or less, or within a time between 0.1 s and 2 s. Due to the adjustment units 6, 6.2, which enable rapid adjustment, and the coating units 3, 3.2, which can alternately coat sections 18, 20, 23 of the web 4, the coating device 1 can coat the web 4 intermittently with high coating quality despite its high feed rate. Figures 2 to 4 show exemplary embodiments of adjustment devices 6 according to the invention.When reference is made below to an adjusting device 6, this may also refer to the first adjusting device 6 and / or the second adjusting device 6.2 of a coating device 1 according to the invention.

[0070] In one or more embodiments, the adjusting device 6 can have a cam 8. An adjusting element 9 can be arranged such that the cam 8 can contact the adjusting element 9, at least when the cam 8 is or is rotated by a contact angle and / or in an angular range. The adjusting element 9 can roll on the cam 8. It can be provided that the adjusting element 9 can contact the cam 8 for each angle of rotation of the cam 8 and / or can roll on it. The adjusting element 9 can be or become adjusted through the contact between the cam 8 and the adjusting element 9.

[0071] The cam 8 can be substantially cylindrical or disc-shaped. In some embodiments, the cam can be part of a camshaft or can be arranged on or near a shaft.

[0072] The cam 8 can have a thickening d. The cam 8 can have one or more transition sections 13. The diameter of the cam 8 can change along the transition section 13. The transition section 13 can be or have a transition contour. By changing the diameter of the cam 8, the adjusting element can be or become adjusted during rolling. It can be provided that the transition section 13 can be arranged on a surface of the cam 8 in an angular range a of 10° to 20°. In some embodiments, the angular range a can be 15°. Along the transition section 13, the diameter of the cam 8 can change by a value between 0.1 mm and 5 mm. In some embodiments, the diameter of the cam 8 can also change along the transition section between 0.5 mm and 2 mm, or by 1 mm.The cam 8 can have a diameter D that can correspond to the theoretical cam diameter without thickening. The diameter D of the cam 8 can be between 70 and 90 mm, preferably between 75 and 85 mm, and particularly preferably 80 mm.

[0073] The adjusting element 9 can be cylindrical or disc-shaped. In some embodiments, the adjusting element can be part of a shaft or arranged on or near a shaft. The adjusting element can have a diameter of 40 mm to 55 mm, preferably 25 mm to 50 mm, particularly preferably 47 mm.

[0074] The adjustment device 6 has a receptacle 10. The receptacle 10 can serve to support a roller or cylinder, for example, a support roller 2, 2.2, and / or a coating roller or gravure roller. In some embodiments, the receptacle 10 can generally serve to attach or accommodate a coating unit 3, 3.2.

[0075] The adjusting element 9 is mechanically coupled to the receptacle 10 such that the receptacle 10 is or will be adjusted upon adjustment of the adjusting element. Thus, the receptacle 10 can be or will be adjusted by a rotation R of the cam 8. In some embodiments, the receptacle 10 and / or the adjusting element 9 can be linearly adjustable. For example, the adjusting device 6 can have one or more suitable linear guides. The adjustment direction V of the adjusting element 9 can correspond to the adjustment direction V of the receptacle 10 and / or coincide with it.

[0076] The cam 8 and the adjustment element 9 allow for a mechanically stable and error-free adjustment. The adjustment unit 6 runs very smoothly. The adjustment element 9 can be rapidly accelerated and / or can have a high adjustment speed. This allows the adjustment unit 6 to be highly responsive.

[0077] In at least one embodiment, the adjusting element 9 can alternatively or additionally act on the support roller bearing and / or adjust it. It can be provided that when the adjusting element 9 is adjusted by rotation R of the cam 8, the support roller bearing and / or the support roller 2, 2.2 is or will be adjusted, for example, in or against the adjustment direction V. In some embodiments, the support roller bearing can have and / or form the adjusting element 9.

[0078] In some embodiments, more than one cam 8 may be provided. In some embodiments, the receptacle 10 may have a first adjustment element 9 or be mechanically connected to such a first adjustment element, and / or the support roller bearing may have a second adjustment element 9 or be mechanically connected to such a second adjustment element 9. It may be provided that a respective cam 8 can act on and / or contact the respective adjustment elements 9.

[0079] When the cam 8 rotates R, the cam 8 rolls on or against the adjusting element 9. The adjusting element 9 can have a suitably shaped contour. The shape of the cam 8 and / or the adjusting element 9 can be selected and / or designed such that vibrations, for example, upon rotation of the cam 8, can be avoided and / or at least reduced.

[0080] Cam 8 and / or adjusting element 9 can be plasma nitrided. Plasma nitriding can increase or extend the service life of cam 8 and / or adjusting element 9. Plasma nitriding can prevent and / or at least reduce wear on cam 8 and / or adjusting element 9. Cam 8 and / or adjusting element 9 can be highly durable.

[0081] In some embodiments, the cam 8 can be driven by a drive. The drive 14 can, for example, comprise one or more gears.

[0082] Depending on the angle of rotation of the cam 8, the cam 8 and / or the adjusting element 9 can thus adjust the support roller 2, 2.2 and / or the coating unit 3, 3.2 between the first position and the second position, and / or the third and fourth position. In some embodiments, a reset device can be provided that can preload and / or press the cam 8 against the adjusting element 9 and / or the adjusting element 9 against the cam 8. The reset device can be or comprise, for example, a spring 12.

[0083] The adjustment device 6 can have a stop 11. The stop 11 can be configured to define a maximum adjustment range of the adjustment element 9. In some embodiments, the maximum adjustment range can be less than or equal to 5 mm, preferably less than or equal to 2 mm, particularly preferably less than or equal to 1 mm.

[0084] As indicated in Figure 4, the cam 8 can be eccentrically mounted. Alternatively or additionally, it can be provided that the adjusting element 9 can be eccentrically mounted. Due to the eccentric mounting, the adjusting element 9 can be or can be adjusted as it rolls. If the cam 8 and / or adjusting element 9 are / are eccentrically mounted, it can be provided in some embodiments that the cam 8 can be round and / or can or need not have any thickening d and / or a transition section 13.

[0085] In some embodiments, it may be provided that the cam 8 is or will be adjusted such that the adjusting device 9 can perform a substantially sinusoidal movement depending on the angle of rotation of the cam 8, as sketched by way of example in Figure 5. Alternatively or additionally, the acceleration of the adjusting element 9 can also be sinusoidal.

[0086] Such a sinusoidal movement need not be limited to designs with eccentric bearings. For example, a sinusoidal movement or a sinusoidal progression of the position of the adjusting element 9 can also generally occur upon rotation of the cam 8, depending on the angle of rotation of the cam 8.

[0087] In some embodiments, for example, the cam can have a transition section 13 along an angular range a of 15° in or against the direction of rotation R, and the adjustment device 9 can be adjusted by a stroke or adjustment of between 0 and 1 mm as it rolls along the transition section 13. The stop 11 can be arranged such that the maximum adjustment path of the adjustment element 9 is 1 mm. The adjustment element 9 can contact a stop 11 at the maximum and / or minimum of its sinusoidal movement. In some embodiments, an adjustment speed of the adjustment element can be between 0 m / s and 0.47 m / s. Depending on the dimensions and / or weight of the adjustment element 9, the cam 8, and any objects accommodated in the receptacle 10, such as rollers, cylinders, or coating units, other adjustment speeds and adjustment accelerations can also result.The values ​​shown in Figure 5 are examples. Other angle ranges a are also possible.

[0088] Figures 6 and 7 show embodiments of a coating system 100. The coating system 100 can have at least one or more coating devices 1. The coating device 1 can have one, several or all features and / or advantages of the coating devices 1 described and / or disclosed above. The coating system 1 can have an unwinding roll 102 and / or a take-up roll 103. The unwinding roll 102 can be configured to provide a not yet coated web 4 or not yet coated sections of the web 4. “Not yet coated” can mean that no coating agent 5, 22 has yet been applied. By the coating device 1, the coating agent 5, 22 can be or will be applied at least sectionally and / or intermittently to the web 4 and / or to one or more sections of the web 4.The take-up roll 103 can be configured to wind up the coated web 4 and / or the web 4 coated at least in sections and / or intermittently.

[0089] Although coating rollers are shown in Figure 6 and slot dies in Figure 7, the features and advantages disclosed with reference to the figures are not limited to such. In some further embodiments, in the embodiment shown in Figure 6, one, several or all of the coating units 3, 3.2 can also have or be other coating units, coating devices or coating means instead of coating rollers, for example slot dies or gravure rollers, or can comprise other rollers such as metering rollers, doctor blades or the like. In some further embodiments, in the embodiment shown in Figure 7, one, several or all of the coating units 3, 3.2 can also have other coating units instead of slot dies,

[0090] Have or be coating devices or coating means, for example coating rollers or gravure rollers, or include further rollers such as dosing rollers, doctor blades, or the like.

[0091] The coating system 100 may have one or more deflection rollers 101. The deflection roller 101 may serve and / or be configured to deflect the material web 4.

[0092] Reference below to a coating unit may mean a first coating unit 3 and / or a second coating unit 3.2. The coating unit 3, 3.2 may be or comprise a gravure roller. The coating unit 3, 3.2 may be configured to receive or entrain provided coating agent 5, 22. The gravure roller may have an engraving that may be conducive to entraining or receiving coating agent 5, 22. Alternatively or additionally, the engraving may have a pattern that may correspond to a pattern of the coating to be applied and / or with which a specific pattern can be applied to the web 4.

[0093] Alternatively or additionally, the coating device 1 can have one or more metering rollers. A metering roller can be configured to receive and / or carry coating agent 5, 22 and transfer it to the coating unit 3, 3.2. The coating unit 3, 3.2 can apply the coating agent 5, 22 received from the metering roller to the web 4 when the coating unit 3, 3.2 is in the second or fourth position. In some embodiments, the metering roller can be adjustable, for example (but not necessarily only) when the coating unit 3, 3.2 is adjustable. The adjustment direction V of the metering roller can be different from the adjustment direction V of the coating unit 3, 3.2. In some embodiments, however, it can also be provided that the coating unit 3, 3.2 and the metering roller can be or are adjustable in the same direction. The coating unit 3, 3.2 can apply the coating agent 5, 22 e.g.thereby applied to the web 4 by a coating roller contacting the web 4 and / or rolling on or onto the web 4 when the coating unit 3, 3.2 is in the second or fourth position.

[0094] Sectional and / or intermittent coating and / or application of coating agent 5, 22 in or onto a section of the web can be carried out, for example, by the coating unit 3, 3.2 being adjusted in the adjustment direction V. The adjustment of the coating unit 3, 3.2 can be controlled and / or regulated. The adjustment of the coating unit 3, 3.2 can be controlled and / or regulated in such a way that coating agent 5, 22 can be or can be applied in or onto a predetermined section of the web 4. The adjustment of the coating unit 3, 3.2 can be controlled and / or regulated in such a way that no coating agent 5, 22 can be or can be applied in or onto a predetermined section of the web 4.It can be provided that the web 4 can have at least one section to which coating agent 5, 22 is or is to be applied, and can have at least one further section to which no coating agent 5, 22 is or is to be applied.

[0095] As can be seen, for example, in Figure 6, the adjustment direction V does not necessarily have to be oriented in a vertical direction, wherein the vertical direction is optionally defined by the connecting line, in particular the center points or axes of the cam 8 and the adjustment element 9, between the cam 8 and the adjustment element 9, which runs through the contact point of the cam 8 with the adjustment element 9, and / or is defined by the normal direction of the surface of the adjustment element 9 and / or of the cam 8 at the contact point. In some embodiments, the adjustment direction V can also be oriented horizontally and / or at an angle, e.g. to the horizontal, i.e. optionally inclined or perpendicular to the previously described connecting line. In some embodiments, the adjustment direction V can be oriented in a direction that can be adapted to a (possibly local) guide direction and / or transport direction of the web of material 4.The coating agent 5, 22 can be at least partially or completely liquid and / or comprise a liquid. The coating agent 5, 22 can comprise ceramic components. The coating agent 5, 22 can be or comprise an electrode precursor material. In some embodiments, the coating agent 5, 22 can consist of a dry portion and a liquid portion. In some embodiments, the coating agent 5, 22 can comprise a dry portion and / or a liquid portion. In some embodiments, the dry portion can have a specific gravity of approximately 2 gsm (grams / square meter). In some embodiments, the liquid portion can have a specific gravity of approximately 6.67 gsm (grams / square meter). The dry portion can have a particle and / or solid content of approximately 30%. The particles and / or the solid can comprise and / or be ceramic.

[0096] The material web 4 can be or comprise a metal foil. The metal foil can comprise aluminum and / or copper. The metal foil can be made of aluminum and / or copper. Provision can be made for the coating agent 5 to be applied to the metal foil, so that the at least partially and / or intermittently coated material web 4 can form or comprise an anode, cathode, electrode, and / or an electrode precursor.

[0097] In some embodiments, the coating system 100 can optionally comprise at least one drying device 104. The drying device 104 can be arranged downstream of the coating device 1 in the transport direction F of the web 4. If the coating agent 5, 22 is at least partially liquid, it can be provided that the drying device can dry and / or cure the web 4 coated with the at least partially liquid coating agent 5, 22.

[0098] In some embodiments, the coating system 100 may include more than one coating device 1.

[0099] The first coating unit 3 can be configured to apply a first coating agent 5 to or onto a first section of the web 4. The second coating unit 3.2 can be configured to apply a second coating agent 22 to or onto a second section of the web 4.

[0100] In some embodiments, the first section and the second section can be arranged such that they can overlap. In some embodiments, it can be provided that the first section and the second section can at least partially overlap in the direction of extension of the material web 4.

[0101] In some embodiments, it may be provided that the first section and the second section can be located on the same side of the web 4. It may be provided that there may be a gap between the first section and the second section. However, in some embodiments, it may also be provided that the first section and the second section can overlap.

[0102] In some embodiments, it can be provided that the first section can be arranged and / or located on a first side of the material web 4, and that the second section can be arranged and / or located on a side of the material web 4 opposite the first side. The coating system 100 and / or the coating device 1 can be configured and / or used to coat a material web 4 at least in sections on both sides and / or to apply coating agent at least in sections to both sides of a material web 4. In some embodiments, it can be provided that the first section and the second section can at least partially overlap in the direction of extension of the material web 4, even if in some embodiments the first section is arranged on a first side and the second section on a second side of the material web 4.

[0103] In some embodiments, it can be provided that the first section can be or be coated with a first coating agent 5 by one or the first coating unit 3, and / or that the first coating agent 5 can be or be applied to or on the first section by one or the first coating unit 3. In some embodiments, it can be provided that the second section can be or be coated with a second coating agent 22 by one or the second coating unit 3.2, and / or that a second coating agent 22 can be or be applied to or on the second section by one or the second coating device 3.2.Alternatively or additionally, it can be provided that the same coating agent, for example the first coating agent 5 or the second coating agent 22, can be applied to or on both the first section and the second section.

[0104] Figures 8 and 9 show exemplary webs of material 4. The web of material 4 can have at least one section 15 to which the coating agent 5, 22 can be or will be applied, see for example Fig. 8. The section 15 can have a dimension L1. The dimension L1 can for example have an area, a length and / or a width. The web of material 4 can have at least one section 16 which can be or will be uncoated. In other words, it can be provided that coating agent 5, 22 can be or will be applied by a coating unit 3, 3.2 only to or on the section 15. The first section 16 can have a dimension L3. The dimension L3 can for example have an area, a length and / or a width.

[0105] As shown by way of example in Figure 9 (left), the material web can have more than one section 18, 20 to be coated or coated. If the material web 4 has more than one section 15 (or 18, 20) that is and / or will be coated, a section 17, 19, 21 (or 16) that can be or will be uncoated can be arranged between the respective sections 15. The respective sections 18, 20 to be coated or coated can have the same dimension LI in some embodiments. In some embodiments, at least two of the sections 18, 20 to be coated or coated can have different dimensions LI, L4. In some embodiments, the respective uncoated sections 17, 19, 21 can have the same dimension L2. In some other embodiments, at least two of the uncoated portions 17, 19, 21 may have different dimensions L2, L3, L5.

[0106] It can be provided that the same coating agent 5, 22 can be or be applied to at least two of the sections 15 (or 18, 20) to be coated or coated. Alternatively or additionally, it can be provided that different coating agents 5, 22 can be or be applied to at least two of the sections 15 (or 18, 20) to be coated or coated. For example, as shown in Figure 9 (left), a first coating agent 5 can be or be applied to a first section 18, 20 to be coated or coated, and a second coating agent 22 can be or be applied to a second section 23 to be coated or coated.

[0107] In some embodiments, it can be provided that coating agent 5, 22 can be applied to or onto at least two spaced-apart sections 15 (or 18, 20) using a first coating unit 1, and that coating agent 5, 22 can be applied to or onto a further section 23 between the two sections 18, 20 using a second coating device 1. In other words, it can be provided that section 23 can be arranged in the initially uncoated section 19 or can overlap with the initially uncoated section 19.

[0108] It can be provided that the sections 15 (corresponding to the sections 18, 20, 23) can be arranged periodically and / or at least systematically or at least according to a predetermined distribution along the web 4, and / or that coating agent 5, 22 can be applied periodically and / or at least systematically or at least according to a predetermined distribution to the web 4. The web 4 can be coated in sections and / or intermittently.

[0109] In some embodiments, a dimension of at least one coated and / or to-be-coated section 15, 18, 20, 23 may have a length between 2.5 to 3.5 m. In some embodiments, a dimension of at least one coated and / or to-be-coated section 15, 18, 20, 23 may have a length between 3.0 to 3.3 m. In some embodiments, several or all of the coated and / or to-be-coated sections 15, 18, 20, 23 may have the same dimension. In some embodiments, a dimension of at least one uncoated section 16, 17, 19, 21 may have a length between 0.1 to 0.2 m. In some embodiments, a dimension of at least one uncoated section 16, 17, 19, 21 may have a length between 0.125 to 0.175 m. In some embodiments, several or all of the uncoated portions 16, 17, 19, 21 may have the same dimension.

[0110] In some embodiments, a feed speed or guide speed of the web 4 can be between 200 and 300 m / min, and / or the web 4 can be or be guided at a speed between 200 and 300 m / min.

[0111] In some embodiments, a feed speed of the web 4 can be 50 m / min. A coating duration, which can correspond to the time required to coat a section to be coated, can be between 3.6 and 4 s. The first coating unit and the second coating unit can be spaced apart from one another such that a point on the web can traverse the distance between the first coating unit and the second coating unit in between 0.15 and 0.21 s. A cycle time, which can correspond to the time interval that can begin when a coating unit, e.g. the first coating unit, begins to apply coating agent in a first section 20 and can end when the coating unit, e.g. the first coating unit, begins to apply coating agent in a section 18 following the first section 20, can be between 7.5 and 8.34 s.

[0112] In some embodiments, a feed speed of the web 4 can be 100 m / min. A coating duration, which can correspond to the time required to coat a section to be coated, can be between 1.8 and 2 s. The first coating unit and the second coating unit can be spaced apart from one another such that a point on the web can traverse the distance between the first coating unit and the second coating unit in a time between 0.075 and 0.105 s. A cycle time, which can correspond to the time interval that can begin when a coating unit, e.g. the first coating unit, begins to apply coating agent in a first section 20 and can end when the coating unit, e.g. the first coating unit, begins to apply coating agent in a section 18 following the first section 20, can be between 3.75 and 4.17 s.

[0113] In some embodiments, a feed speed of the web 4 can be 200 m / min. A coating duration, which can correspond to the time required to coat a section to be coated, can be between 0.9 and 1 s. The first coating unit and the second coating unit can be spaced apart from one another such that a point on the web can traverse the distance between the first coating unit and the second coating unit in a time between 0.038 and 0.053 s. A cycle time, which can correspond to the time interval that can begin when a coating unit, e.g. the first coating unit, begins to apply coating agent in a first section 20 and can end when the coating unit, e.g. the first coating unit, begins to apply coating agent in a section 18 following the first section 20, can be between 1.88 and 2.09 s.

[0114] In some embodiments, a feed speed of the web 4 can be 300 m / min. A coating duration, which can correspond to the time required to coat a section to be coated, can be between 0.6 and 0.66 s. The first coating unit and the second coating unit can be spaced apart from one another such that a point on the web can traverse the distance between the first coating unit and the second coating unit in a time between 0.025 and 0.035 s. A cycle time, which can correspond to the time interval that can begin when a coating unit, e.g. the first coating unit, begins to apply coating agent in a first section 20 and can end when the coating unit, e.g. the first coating unit, begins to apply coating agent in a section 18 following the first section 20, can be between 1.25 and 1.39 s.

[0115] The feed rate, coating duration, throughput time, and cycle time are not limited to the specified values. Embodiments are possible in which one, several, or all values ​​deviate from those specified by way of example. The features disclosed in the description, the figures, and / or the claims may be essential for the implementation of the invention, individually or in any combination.

[0116] List of reference symbols

[0117] Coating device first support roller second support roller first coating unit second coating unit

[0118] Material web

[0119] (first) coating agent first adjustment device second adjustment device

[0120] cam

[0121] Adjustment element

[0122] Coating unit

[0123] stop

[0124] Feather

[0125] Transition section first gap second gap

[0126] Section uncoated section first section second section third section fourth section fifth section second coating agent sixth section

[0127] Coating system

[0128] pulley

[0129] Unwind roll 103 Take-up roll

[0130] 104 Drying device

[0131] V Adjustment direction

[0132] R rotation

[0133] D Diameter d Thickening

[0134] Al Interval

[0135] A2 interval

[0136] L Dimension

[0137] F Conveying direction

[0138] LI first dimension

[0139] L2 second dimension

[0140] L3 third dimension

[0141] L4 fourth dimension

[0142] L5 fifth dimension

Claims

Claims 1. Adjusting device (6) for a coating device (1), wherein the adjusting device (6) has a cam (8), an adjusting element (9) which contacts the cam (8), preferably rolls on the cam (8), and is adjustable upon rotation of the cam (8), preferably a linearly adjustable adjusting element (9), wherein the adjusting device (6) has a receptacle (10) for a roller, roll (2, 2.2) or coating unit (3, 3.2) and the adjusting element (9) and the receptacle (10) are mechanically coupled in such a way that when the adjusting element (9) is adjusted, the receptacle (10) is adjusted, preferably linearly adjusted.

2. Adjusting device (6) according to claim 1, wherein the cam (8) has a transition section (13) along which a diameter (D) of the cam (8) changes, so that when the adjusting element (9) rolls along the transition section (13), the adjusting element (9) is adjusted, and / or wherein the cam (8) is mounted eccentrically.

3. Adjusting device (6) according to claim 2, wherein the transition section (13) is arranged on a surface of the cam (8) in an angular range (et) of 10° to 20°, preferably 15 0 , and / or the diameter (D) of the cam (8) changes along the transition section (13) by a value between 0.1 mm and 5 mm, preferably between 0.5 mm and 2 mm, particularly preferably by 1 mm.

4. Adjusting device (6) according to one of the preceding claims, which has a stop (11) which defines a maximum adjustment path of the adjusting element (9) and / or the receptacle (10), wherein the maximum adjustment path is preferably less than or equal to 5 mm, preferably less than or equal to 2 mm, particularly preferably less than or equal to 1 mm.

5. Adjusting device (6) according to one of the preceding claims, in which the cam (8) has a diameter (D) of between 70 - 90 mm, particularly preferably between 75 - 85 mm, particularly preferably substantially 80 mm, and / or in which the adjusting element (9) has a diameter of 40 mm to 55 mm, preferably 25 mm to 50 mm, particularly preferably 47 mm.

6. Adjusting device (6) according to one of the preceding claims, in which the cam (8) and / or the adjusting element (9) is plasma nitrided.

7. Coating device (1) for coating a web of material (4) in sections, wherein the coating arrangement (1) has a first support roller (2) and a second support roller (2.2) for guiding the web of material (4), as well as a first coating unit (3) for applying a first coating agent (5) and a second coating unit (3.2) for applying a second coating agent (22) to the web of material (4), wherein the first support roller (2) and the first coating unit (3) form a first gap (14) and the second support roller (2.2) and the second coating unit (3.2) form a second gap (14.2) for guiding a web of material (4) through, and wherein the coating device (1) has a first adjusting device (6) and a second adjusting device (6.2), preferably a first and / or second adjusting device (6, 6.2) according to one of the preceding claims 1 to 6, wherein the first adjusting device (6) is designed to adjust the first support roller (2) and / or the first coating unit (3) between a first position and a second position in which the first gap (14) is smaller than in the first position, and the second adjusting device (6.2) is designed to adjust the second support roller (2.2) and / or the second coating unit (3.2) between a third position and a fourth position in which the second gap (14.2) is smaller than in the third position, so that when a web of material (4) is guided through the first gap (14) and the second gap (14.2), the web of material (4) is guided alternately through the first. Coating unit (3) and the second coating unit (3.2) can be coated.

8. Coating device (1) according to claim 7, wherein, when the first support roller (2) and / or the first coating unit (3) is in the first position, the second support roller (2.2) and / or the second coating unit (3.2) is in the fourth position, and / or wherein, when the first support roller (2) and / or the first coating unit (3) is in the second position, the second support roller (2.2) and / or the second coating unit (3.2) is in the third position.

9. Coating device (1) according to one of the preceding claims 7 or 8, wherein the first coating unit (3) and / or the second coating unit (3.2) is or comprises a slot nozzle, a coating roller and / or an engraved roller.

10. Coating device (1) according to one of the preceding claims 7 to 9, wherein the first support roller (2) is adjustable by the first adjusting device (6) and the second support roller (2.2) is adjustable by the second adjusting device (6.2), and the first coating unit (3) and the second coating unit (3.2) are not adjustable, so that in the second position the first support roller (2) is further apart from the first coating unit (3) than in the first position, and the second support roller (2.2) is further apart from the second coating unit (3.2) in the third position than in the fourth position.

11. Method for coating a web of material (4) in sections, comprising the following steps: a) guiding a web of material (4) through a first gap (14) formed by a first support roller (2) and a first coating unit (3), and guiding the web of material (4) through a second gap (14.2) formed by a second support roller (2.2) and a second coating unit (3.2), which second gap is preferably arranged behind the first gap (14) in the guide direction of the web of material (4); b) adjusting the first support roller (2) and / or the first coating unit (3) with a first adjusting device (6) from a first position to a second position, wherein the first gap (14) is smaller in the second position than in the first position, and adjusting the second support roller (2.2) and / or the second coating unit (3.2) with a second adjusting device (6.2) from a fourth position to a third position, wherein the second gap (14.2) is smaller in the fourth position than in the third position; c) applying a first coating agent (5) with the first coating unit (3) to the web of material (4) guided through the first gap (14); and d) adjusting the first support roller (2) and / or the first coating unit (3) with the first adjusting device (6) from the second to the first position, and adjusting the second support roller (2.2) and / or the second coating unit (3.2) with the second adjusting device (6.2) from the third position to the fourth position; and e) applying a second coating agent (22) with the second coating unit (3.2) to the web (4) guided through the second gap (14.2).

12. The method according to claim 11, wherein steps b) to e) are repeated so that the first and the second coating agent (5, 22) are applied alternately to the web (4).

13. The method according to claim 11 or 12, wherein no second coating agent (22) is applied when applying the first coating agent (5), and / or no first coating agent (5) is applied when applying the second coating agent (22).

14. Method according to one of claims 11 to 13, wherein step d) is carried out after expiry of a predetermined time interval after step b) and / or c), wherein preferably the predetermined time interval is determined as a function of a Feed speed of the web (4) and / or preferably a dimension, particularly preferably a length, of a section (15) of the web (4) to be coated is or will be selected.

15. Method according to one of claims 11 to 14, in which the first coating agent (5) is applied in or onto a first section (18, 20) of the material web (4), and the second coating agent is applied in or onto a second section (23) of the material web (4), wherein preferably the first section (18, 20) and the second section (23) of the material web (4) do not overlap or only partially overlap.

16. Method according to one of the preceding claims 11 to 15, wherein the material web (4) is or comprises a metal foil, and the first coating agent (5) and / or the second coating agent (22) is or comprises an electrode precursor material.

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