Electrode member for secondary battery and method for manufacturing same

Abstract

Disclosed are: an electrode material for a secondary battery, which reduces side reactions of lithium, has a simple process, and can reduce cracks caused by external impact; and a method for manufacturing the electrode material. This electrode piece for a secondary battery includes a porous film and a current collector. The porous film comprises a plurality of air holes, an adhesive fixed to the air holes and active material particles dispersed in the adhesive. The current collector is attached to the pore membrane.

Description

Technical Field

[0001] The present invention relates to an electrode component for a secondary battery and a method for manufacturing the same. Background Art

[0002] At present, with the development of the information age, personal mobile electronic devices are being widely used, and these mobile electronic devices inevitably need batteries to drive them.

[0003] In the past, primary batteries such as manganese batteries and alkaline batteries were mainly used, which were used once and discarded after discharge. However, secondary batteries that can be recharged after discharge and are therefore reusable have recently been widely used to replace primary batteries that are disadvantageous in terms of environmental pollution and cost of waste batteries.

[0004] These secondary batteries are usually composed of positive electrode, negative electrode, electrolyte and separator. Among them, positive electrode and negative electrode are the core materials that determine battery capacity, life and charging speed. The positive electrode, as a lithium ion source, determines the capacity and average voltage of the battery, while the negative electrode determines the charging speed and life.

[0005] In order to manufacture such electrode parts such as positive electrode parts or negative electrode parts, in the "Dry particle-based electrochemical device and its manufacturing method", Korean Patent Publication No. 10-2006-0025230, in order to form a matrix of dry active material by mixing dry active material and dry binder at room temperature, a dry active material sheet is developed by dry fiberization of fluororesins such as PTFE and PVDF using a jet mill through a high temperature process. However, although PTFE has advantages in fiberization to form active material sheets, it increases lithium resistance due to side reactions during lithium charging and discharging.

[0006] To solve this problem, Korean Patent Publication 10-2016-0145043's "Dry Energy Storage Device Electrode and Manufacturing Method Thereof" uses a composite binder containing PTFE and PVDF or a copolymer, and Korean Patent Publication 10-2022-0100240's "Dry Binder, Lithium Secondary Battery Electrode Including the Same and Manufacturing Method Thereof" minimizes the resistance of this lithium by mixing PTFE and CMC or PAA.

[0007] In order to minimize the side reactions of these active materials, PVDF, CMC, PAA, etc. are added to PTFE to suppress the side reactions, but the fiberization structure is not smooth. In other words, although the structural strength against shear force is strong, this will cause the side reaction of lithium (increase in resistance), thereby reducing battery performance.

[0008] [Prior art literature]

[0009] [Patent Literature]

[0010] Patent document 0001: Korean Publication Patent No. 10-2006-0025230

[0011] Patent document 0002: Korean Publication Patent No. 10-2016-0145043

[0012] Patent document 0003: Korean published patent 10-2022-0100240 Summary of the invention

[0013] Technical issues

[0014] Therefore, the technical problem to be solved by the present invention is to provide an electrode component for a secondary battery and a manufacturing method thereof, which can reduce the side reaction of lithium, have a simple process and can reduce cracks caused by external impact.

[0015] Technical Solution

[0016] In order to solve this technical problem, an electrode member for a secondary battery according to an exemplary embodiment of the present invention includes a porous membrane and a current collector. The porous membrane includes a plurality of pores, and includes a binder fixed to the pores and active material particles dispersed inside the binder. The current collector is attached to the porous membrane.

[0017] As an embodiment, the active material particles may be negative electrode active material particles including at least any one of carbon, silicon, tin, antimony, and graphene.

[0018] Here, the current collector may be copper foil (Cu).

[0019] As an embodiment, the active material particles may be positive electrode active material particles composed of aluminum (Al), nickel (Ni), titanium (Ti), tungsten (W), iron (Fe), chromium (Cr), alloys thereof, and combinations thereof.

[0020] Here, the current collector may be aluminum foil (Al).

[0021] As an embodiment, the adhesive may include at least any one of polyvinylidene fluoride (PVDF), elastomer, styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), nitrile butadiene rubber (NBR), butadiene, and polyacrylic acid (PAA).

[0022] As an embodiment, the porous membrane may include at least any one of polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), nylon, and cotton.

[0023] As an embodiment, the porous membrane may include any one of PVDF and PTFE, and the porous membrane may be treated with a sodium naphthalene solution.

[0024] As an embodiment, the porous membrane includes polyvinylidene fluoride (PVDF), and the molecular weight of the PVDF here may be less than 600,000.

[0025] As an embodiment, the diameter of the pores of the porous membrane may be in the range of 50 μm to 800 μm.

[0026] As an example, the ratio of the thickness of the adhesive to the thickness of the porous membrane may be in a range of 1:1 to 2:1.

[0027] As an embodiment, conductive material particles dispersed in the adhesive may also be included.

[0028] As an embodiment, the conductive material particles may include at least any one of carbon black, acetylene black, vapor grown carbon fiber (VGCF), carbon nanotube (CNT), and graphene.

[0029] As an embodiment, the porous membrane and the current collector may be attached by an adhesive.

[0030] As an embodiment, the binder may be a mixture of a polymer resin and a conductor, or the binder may be a conductive polymer resin.

[0031] As an embodiment, the polymer resin may include any one of styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), silicone rubber, and butadiene rubber.

[0032] According to an exemplary embodiment of the present invention, a method for manufacturing an electrode member for a secondary battery includes: a step of preparing a raw material; a step of preparing a porous membrane including a plurality of pores; a step of fixing the raw material inside the pores of the porous membrane; and a step of attaching the porous membrane with the raw material fixed thereon to a current collector.

[0033] As an example, the step of preparing the raw material may include: a step of mixing active material powder and binder powder; a step of extruding the mixture; and a step of pulverizing the extrudate.

[0034] As an example, the step of preparing the raw material may include: a step of mixing active material powder and binder powder at high temperature; and a step of pulverizing the agglomerated mixture at room temperature.

[0035] As an example, the step of mixing the active material powder and the binder powder at high temperature may be performed at a temperature ranging from 100°C to 200°C.

[0036] As an embodiment, the active material powder may include at least any one of carbon, silicon, tin, antimony, and graphene.

[0037] As an embodiment, the active material powder may include at least any one of aluminum (Al), nickel (Ni), titanium (Ti), tungsten (W), iron (Fe), and chromium (Cr).

[0038] As an embodiment, the adhesive powder may include at least any one of polyvinylidene fluoride (PVDF), elastomer, styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), nitrile butadiene rubber (NBR), butadiene, and polyacrylic acid (PAA).

[0039] As an embodiment, in the step of mixing the active material powder and the binder powder or in the step of mixing the active material powder and the binder powder at a high temperature, a conductive material powder may be further mixed.

[0040] As an embodiment, the conductive material powder may include at least any one of carbon black, acetylene black, vapor grown carbon fiber (VGCF), carbon nanotube (CNT), and graphene.

[0041] As an embodiment, the porous membrane may include at least any one of polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), nylon, and cotton.

[0042] As an embodiment, the porous membrane may include any one of PVDF and PTFE, the porous membrane may be immersed in the sodium naphthalene solution, or the surface of the porous membrane may be sprayed with the sodium naphthalene solution.

[0043] As an embodiment, the step of fixing the raw material inside the pores of the porous membrane may include: the step of coating the raw material on the upper part of the lower release film; the step of configuring the porous membrane on the upper part of the coated raw material; the step of coating the raw material on the upper part of the porous membrane; the step of configuring the upper release film on the upper part of the raw material; and the step of hot pressing the upper part of the upper release film.

[0044] As an embodiment, the step of fixing the raw material substance inside the pores of the porous film may include: the step of placing the porous film into a roll-to-roll press; and the step of placing the raw material substance between rollers.

[0045] As an embodiment, the step of adhering the porous membrane having the raw material substance fixed thereon to the current collector may be performed by a binder.

[0046] As an embodiment, the binder may be a mixture of a polymer resin and a conductor, or the binder may be a conductive polymer resin.

[0047] As an embodiment, the polymer resin may include any one of styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), silicone rubber, and butadiene rubber.

[0048] Effects of the Invention

[0049] According to the electrode member for secondary battery and the manufacturing method thereof of the present invention as described above, the thin film type porous membrane replaces the existing dry powder type adhesive to play the role of adhesive. That is, for the expansion and contraction during the lithium charge and discharge process, the porous membrane plays the role of bonding. Therefore, the manufacturing process can be simplified and cracks caused by external impact can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1A cross-sectional view briefly showing an electrode member for a secondary battery according to an exemplary embodiment of the present invention;

[0051] Figure 2 for Figure 1 Actual photograph of the electrode member for a secondary battery shown;

[0052] Figure 3 To show Figure 1 A flowchart of a method for manufacturing an electrode member for a secondary battery shown in FIG.

[0053] Figure 4 To show Figure 3 A flowchart of an embodiment of step S110 is shown;

[0054] Figure 5 To show Figure 4 The conceptual diagram of step S112 is shown;

[0055] Figure 6 To show Figure 3 A flowchart of an embodiment of step S110 is shown;

[0056] Figure 7 To show Figure 3 A flowchart of an embodiment of step S130 is shown;

[0057] Figure 8 for Figure 7 A brief cross-sectional view after step S131 is shown;

[0058] Fig. 9 for Figure 7 A brief cross-sectional view after step S132 is shown;

[0059] Fig.10 for Figure 7 A brief cross-sectional view after step S133 is shown;

[0060] Fig.11 To show Figure 7 A simplified cross-sectional view of step S135 following step S134 is shown;

[0061] Fig.12 To show Figure 3 A flowchart of another embodiment of step S130 is shown;

[0062] Fig.13 To show Fig.12 A simplified cross-sectional view of step S232 is shown.

[0063] Description of Reference Numerals

[0064] 1000: Electrode parts for secondary batteries

[0065] 1100: Current collector 1200: Binder

[0066] 1310: Porous membrane 1320: Active material

[0067] 1330: Adhesive 1340: Conductive material

[0068] SM: Raw material TH: Porosity

[0069] LSF: Lower release film USF: Upper release film

[0070] P: Press DETAILED DESCRIPTION

[0071] The present invention is susceptible of numerous variations and forms, and therefore specific embodiments are shown in the drawings and described in detail in the text. However, it should be understood that this is not intended to limit the present invention to a particular disclosed form, but rather to include all variations, equivalents, and even substitutes included in the spirit and technical scope of the present invention. Similar reference numerals are used for similar constituent elements in the description of the various figures. The dimensions of the components in the drawings may be shown larger than actual dimensions in order to clearly illustrate the present invention.

[0072] The terms first, second, etc. can be used to describe various constituent elements, but the constituent elements should not be limited by these terms. The terms are only used to distinguish one constituent element from other constituent elements. For example, without departing from the scope of the present invention, the first constituent element can be named as the second constituent element, and similarly, the second constituent element can also be named as the first constituent element.

[0073] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly indicates otherwise, singular expressions include plural expressions. It should be understood that in this application, terms such as "including" or "having" are intended to indicate the presence of features, numbers, steps, operations, constituent elements, parts or combinations thereof described in the specification, without excluding in advance the existence or additional possibilities of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof. Moreover, the meaning of "connection" and "combination" of A and B includes not only the direct connection or combination of A and B, but also the situation where A and B include other constituent elements C to connect or combine A and B.

[0074] Unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as those generally understood by ordinary technicians in the technical field to which the present invention belongs. Terms defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant technology, and unless clearly defined in this application, they are not interpreted as ideal or overly formal meanings. In addition, in the claims about method inventions, the order of each step can be changed unless each step is explicitly subject to order constraints.

[0075] Furthermore, the configurations described separately in each embodiment may also be applied to other embodiments.

[0076] The embodiments of the present invention are described in more detail below with reference to the accompanying drawings.

[0077] Figure 1 To briefly illustrate a cross-sectional view of an electrode member for a secondary battery according to an exemplary embodiment of the present invention, Figure 2 for Figure 1 An actual photograph of an electrode member for a secondary battery is shown.

[0078] Reference Figure 1 and Figure 2 , an electrode member for a secondary battery according to an exemplary embodiment of the present invention includes a porous membrane 1310 and a current collector 1100 .

[0079] The porous membrane 1310 may be a mesh membrane or a membrane film. The porous membrane 1310 includes a plurality of pores. A binder 1330 is fixed in the pores, and active material 1320 particles are dispersed inside the binder 1330 .

[0080] As an example, the ratio of the thickness of the adhesive 1330 to the thickness of the porous membrane 1310 may be in the range of 1:1 to 2:1. If the thickness of the adhesive 1330 is too small, the efficiency is reduced, and if the thickness of the adhesive 1330 is too large, the cohesive force between the adhesive and the porous membrane 1310 may be reduced.

[0081] As an embodiment, the porous membrane 1310 may include at least any one of polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), nylon, and cotton.

[0082] As an embodiment, the porous membrane 1310 includes any one of PVDF or PTFE, and the porous membrane 1310 can be treated with a sodium naphthalene solution. As described above, when spraying a sodium series liquid, the heterogeneous bonding force can be increased by modifying the surface of a fluoropolymer including non-sticky materials PTFE, PFA, FEP, ETFE, PCTFE, and PVDF.

[0083] As an embodiment, the diameter of the pores of the porous membrane 1310 may be in the range of 50 μm to 800 μm. If the size of the pores is too small, it is difficult for the active material 1320 particles, the adhesive 1330 particles, the conductive material 1340 particles, etc. to penetrate into the pores during the manufacturing process. If the size of the pores is too large, the cohesion of the active material 1320 particles becomes weak. Preferably, the diameter of the pores may be in the range of 100 μm to 600 μm.

[0084] The current collector 1100 is attached to the pore membrane 1310 .

[0085] As an embodiment, the active material 1320 particles may be negative electrode active material particles including at least any one of carbon, silicon, tin, antimony, and graphene.

[0086] Here, the current collector 1100 may be copper foil (Cu).

[0087] As an embodiment, the active material 1320 particles may be positive electrode active material particles composed of aluminum (Al), nickel (Ni), titanium (Ti), tungsten (W), iron (Fe), chromium (Cr), alloys thereof, and combinations thereof.

[0088] Here, the current collector 1100 may be aluminum foil (Al).

[0089] As an embodiment, the adhesive 1330 may include at least any one of polyvinylidene fluoride (PVDF), elastomer, styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), nitrile butadiene rubber (NBR), butadiene, and polyacrylic acid (PAA).

[0090] On the other hand, conductive material 1340 particles dispersed inside the adhesive 1330 may also be included.

[0091] As an embodiment, the conductive material 1340 particles may include at least any one of carbon black, acetylene black, vapor grown carbon fiber (VGCF), carbon nanotube (CNT), and graphene.

[0092] As an example, the porous membrane 1310 and the current collector 1100 may be attached via an adhesive 1200 .

[0093] As an embodiment, the adhesive 1200 may be a mixture of a polymer resin and a conductor, or may be a conductive polymer resin.

[0094] As an embodiment, the polymer resin may include any one of styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), silicone rubber, and butadiene rubber.

[0095] Figure 3 To show Figure 1 Flow chart of a method for manufacturing an electrode member for a secondary battery shown in FIG.

[0096] Reference Figure 3 According to an exemplary embodiment of the present invention, a method for manufacturing an electrode member for a secondary battery includes preparing a raw material (step S110), and preparing a porous film including a plurality of pores (step S120). The preparation order of the raw material and the porous film is irrelevant.

[0097] Figure 4 To show Figure 3 FIG. 1 is a flow chart of an embodiment of step S110 shown in FIG.

[0098] Reference Figure 3 and Figure 4 The step S110 of preparing the raw material may include: a step S111 of mixing active material powder and binder powder, a step S112 of extruding the mixture, and a step S113 of pulverizing the extrudate.

[0099] As mentioned above, in order to manufacture the negative electrode member, the active material powder may include at least any one of carbon, silicon, tin, antimony, and graphene.

[0100] Different from this, in order to manufacture the positive electrode member, the active material powder may include at least any one of aluminum (Al), nickel (Ni), titanium (Ti), tungsten (W), iron (Fe), and chromium (Cr).

[0101] Here, the binder powder may include at least any one of polyvinylidene fluoride (PVDF), elastomer, styrene butadiene rubber (SBR), carboxymethylcellulose (CMC), nitrile butadiene rubber (NBR), butadiene, and polyacrylic acid (PAA).

[0102] On the other hand, in the step S111 of mixing the active material powder and the binder powder, a conductive material powder may be further mixed.

[0103] Here, the conductive material powder may include at least any one of carbon black, acetylene black, vapor grown carbon fiber (VGCF), carbon nanotube (CNT), and graphene.

[0104] Afterwards, if Figure 5 A step S112 of extruding the mixture is performed.

[0105] Figure 5 To show Figure 4 A conceptual diagram of step S112 is shown.

[0106] Reference Figure 5 The mixture is added to the inlet of the high-temperature cylinder, and the piston on one side is driven to discharge the active material 1320 and the conductive material 1340 condensed by the molten adhesive 1330 from the outlet on the other side.

[0107] Refer again Figure 4 , and then the hardened discharge is crushed again (step S113). As described above, the discharge is crushed again and injected into the pores of the porous membrane. When the extruded particles are crushed again to form a powder and then injected into the pores, the active material, the conductive material and the binder are in a certain degree of linear bonding. Therefore, compared with injecting the active material powder, the conductive material powder and the binder powder in a mixed state into the pores, the cohesion of the pores can be enhanced.

[0108] Figure 6 To show Figure 3 FIG. 1 is a flow chart of an embodiment of step S110 shown in FIG.

[0109] Reference Figure 6The step of preparing the raw material material S110 may include: a step of mixing the active material powder and the binder powder at high temperature S211; and a step of crushing the agglomerated mixture at room temperature S212. As an embodiment, the step of mixing the active material powder and the binder powder at high temperature may be performed at a temperature range of 100°C to 200°C.

[0110] and Figure 4 The same as in the example Figure 6 In the embodiment, the conductive material may also be mixed, and the active material, the adhesive, and the conductive material may be mixed. Figure 4 The embodiments are the same as those of the present invention, so repeated description is omitted.

[0111] Refer again Figure 3 After the raw material and the porous membrane are prepared, the raw material is fixed inside the pores of the porous membrane (step S130).

[0112] Figure 7 To show Figure 3 FIG. 1 is a flow chart of an embodiment of step S130 shown in FIG.

[0113] Reference Figure 7 In order to perform step S130 of fixing the raw material inside the pores of the porous film, the raw material is firstly coated on the upper part of the lower release film (step S131).

[0114] Figure 8 for Figure 7 A simplified cross-sectional view after step S131 is shown.

[0115] Reference Figure 8 , the raw material SM prepared above is coated on the lower release film LSF. Here, preferably, as mentioned above, the raw material SM can also be Figure 4 The raw material material SM of the process described above may be a mixture of active material 1320 powder, binder 1330 powder and conductive material 1340 powder that have not undergone these processes.

[0116] On the other hand, although not shown in the figure, the mixture may be electrostatically charged by friction, and a potential of opposite polarity may be applied to the lower support of the lower release film LSF to make the coating more secure.

[0117] Refer again Figure 7 , and then a porous membrane is arranged on top of the coated raw material (step S132).

[0118] Fig. 9 for Figure 7 A simplified cross-sectional view after step S132 is shown.

[0119] Reference Fig. 9, a porous membrane 1310 having a plurality of pores is arranged on the upper portion of the raw material SM.

[0120] Refer again Figure 7 , and then the raw material is coated on the upper part of the porous membrane (step S133).

[0121] Here, as described above, the mixture SM can also be electrostatically charged by friction, and a potential of opposite polarity can be applied to the lower support of the lower release film LSF to make the coating more secure.

[0122] Refer again Figure 7 Then, an upper release film is arranged on the upper portion of the raw material (step S134) and the upper portion of the upper release film is thermally pressed (step S135).

[0123] Fig.11 To show Figure 7 A schematic cross-sectional view of step S135 following step S134 is shown.

[0124] Reference Fig.11 , a high-temperature and high-pressure press P is used to press the upper part of the upper release film USF to melt the adhesive, thereby fixing the active material and the conductive material in the pores of the porous film 1310 .

[0125] Fig.12 To show Figure 3 FIG. 1 is a flow chart of another embodiment of step S130 .

[0126] Reference Fig.12 The step S130 of fixing the raw material inside the pores of the porous film may include: a step S231 of placing the porous film into a roll-to-roll press; and a step S232 of placing the raw material between rollers.

[0127] Fig.13 To show Fig.12 A simplified cross-sectional view of step S232 is shown.

[0128] Reference Fig.13 , first insert the porous film 1310 into the rotating roll-to-roll press and place the raw material SM between the rollers.

[0129] Refer again Figure 3 , attaching the porous membrane having the raw material fixed thereon to a current collector (step S140 ).

[0130] like Figure 1 As described above, the porous membrane 1310 and the current collector 1100 may be attached via the adhesive 1200. Alternatively, the porous membrane 1310 may be heated to be directly attached to the current collector 1100.

[0131] According to the electrode member for secondary battery and the manufacturing method thereof of the present invention as described above, the thin film type porous membrane replaces the existing dry powder type adhesive to play the role of adhesive. That is, for the expansion and contraction during the lithium charge and discharge process, the porous membrane plays the role of bonding. Therefore, the manufacturing process can be simplified and cracks caused by external impact can be reduced.

[0132] Although the present invention has been described in detail with reference to the preferred embodiments of the present invention, those skilled in the art or those of ordinary skill in the art will understand that various modifications and changes may be made to the present invention without departing from the scope of the invention and the technical field as described in the appended claims.

Claims

1. An electrode member for a secondary battery, comprising: A porous film including a plurality of pores, a binder fixed to the pores and active material particles dispersed inside the binder; as well as A current collector is attached to the porous membrane.

2. The electrode member for a secondary battery according to claim 1, characterized in that: The active material particles are negative electrode active material particles including at least any one of carbon, silicon, tin, antimony and graphene.

3. The electrode member for a secondary battery according to claim 2, characterized in that: The current collector is copper foil.

4. The electrode member for a secondary battery according to claim 1, characterized in that: The active material particles are positive electrode active material particles composed of aluminum, nickel, titanium, tungsten, iron, chromium, alloys thereof, and combinations thereof.

5. The electrode member for a secondary battery according to claim 4, characterized in that: The current collector is aluminum foil.

6. The electrode member for a secondary battery according to claim 1, characterized in that: The adhesive comprises at least any one of polyvinylidene fluoride, elastomer, styrene-butadiene rubber, carboxymethyl cellulose, nitrile rubber, butadiene, and polyacrylic acid.

7. The electrode member for a secondary battery according to claim 1, characterized in that: The porous membrane includes at least any one of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, nylon and cotton.

8. The electrode member for a secondary battery according to claim 1, characterized in that: The porous membrane includes any one of polyvinylidene fluoride or polytetrafluoroethylene, The porous membrane is treated with a sodium naphthalene solution.

9. The electrode member for a secondary battery according to claim 1, characterized in that: The porous membrane comprises polyvinylidene fluoride, The molecular weight of the polyvinylidene fluoride at this time is 600,000 or less.

10. The electrode member for a secondary battery according to claim 1, characterized in that: The diameter of the pores of the porous film is in a range of 50 μm to 800 μm.

11. The electrode member for a secondary battery according to claim 1, characterized in that: The ratio of the thickness of the adhesive to the thickness of the aperture film is in the range of 1:1 to 2:

1.

12. The electrode member for a secondary battery according to claim 1, characterized in that: Also included are conductive material particles dispersed within the adhesive.

13. The electrode member for a secondary battery according to claim 12, characterized in that: The conductive material particles include at least any one of carbon black, acetylene black, vapor-grown carbon fiber, carbon nanotubes, and graphene.

14. The electrode member for a secondary battery according to claim 1, characterized in that: The porous membrane is attached to the current collector via a binder.

15. The electrode member for a secondary battery according to claim 14, characterized in that: The binder is formed by mixing a polymer resin and a conductor, or the binder is a conductive polymer resin.

16. The electrode member for a secondary battery according to claim 15, characterized in that: The polymer resin includes any one of styrene-butadiene rubber, carboxymethyl cellulose, silicone rubber and butadiene rubber.

17. A method for manufacturing an electrode member for a secondary battery, comprising: Steps for preparing raw materials; The step of preparing a porous membrane including a plurality of pores; The step of fixing the raw material inside the pores of the porous membrane; as well as The step of attaching the porous membrane having the raw material substance fixed thereon to a current collector.

18. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The steps for preparing the feedstock material include: a step of mixing active substance powder and binder powder; the step of extruding the mixture; and The step of comminuting the extrudate.

19. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The steps for preparing the feedstock material include: a step of mixing active material powder and binder powder at high temperature; and A step of pulverizing the agglomerated mixture at room temperature.

20. The method for manufacturing an electrode member for a secondary battery according to claim 19, characterized in that: The step of mixing the active material powder and the binder powder at high temperature is performed at a temperature ranging from 100°C to 200°C.

21. The method for manufacturing an electrode member for a secondary battery according to claim 18 or 19, characterized in that: The active material powder includes at least any one of carbon, silicon, tin, antimony and graphene.

22. The method for manufacturing an electrode member for a secondary battery according to claim 18 or 19, characterized in that: The active material powder includes at least any one of aluminum, nickel, titanium, tungsten, iron, and chromium.

23. The method for manufacturing an electrode member for a secondary battery according to claim 18 or 19, characterized in that: The adhesive powder includes at least any one of polyvinylidene fluoride, elastomer, styrene-butadiene rubber, carboxymethyl cellulose, nitrile rubber, butadiene, and polyacrylic acid.

24. The method for manufacturing an electrode member for a secondary battery according to claim 18 or 19, characterized in that: In the step of mixing the active material powder and the binder powder or the step of mixing the active material powder and the binder powder at a high temperature, a conductive material powder is further mixed.

25. The method for manufacturing an electrode member for a secondary battery according to claim 24, characterized in that: The conductive material powder includes at least any one of carbon black, acetylene black, vapor-grown carbon fiber, carbon nanotube, and graphene.

26. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The porous membrane includes at least any one of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, nylon and cotton.

27. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The porous membrane includes any one of polyvinylidene fluoride or polytetrafluoroethylene, The porous membrane is immersed in the sodium naphthalene solution, or the surface of the porous membrane is sprayed with the sodium naphthalene solution.

28. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The step of fixing the raw material inside the pores of the porous membrane comprises: The step of coating a raw material substance on the upper portion of the lower release film; The step of disposing a porous membrane on the top of the coated raw material; The step of coating a raw material on the upper part of the porous membrane; The step of disposing an upper release film on the upper portion of the raw material; and The step of performing heat compression bonding on the upper portion of the upper release film.

29. The method for manufacturing an electrode member for a secondary battery according to claim 17, characterized in that: The step of fixing the raw material inside the pores of the porous membrane comprises: The step of placing the apertured film into a roll-to-roll press; and The step of placing the raw material between the rollers.

30. The method for manufacturing an electrode member for a secondary battery according to claim 17, wherein: The step of attaching the porous membrane having the raw material substance fixed thereto to a current collector is performed by a binder.

31. The method for manufacturing an electrode member for a secondary battery according to claim 30, characterized in that: The binder is formed by mixing a polymer resin and a conductor, or the binder is a conductive polymer resin.

32. The method for manufacturing an electrode member for a secondary battery according to claim 31, characterized in that: The polymer resin includes any one of styrene-butadiene rubber, carboxymethyl cellulose, silicone rubber and butadiene rubber.

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