Patent
US 10,644,290SEPARATOR INCLUDING LASER-INDUCED CARBONIZED GRAPHENE LAYER AND LITHIUM-SULFUR BATTERY INCLUDING THE SAME
Taek-Gyoung KIM
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
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US 10,644,290Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the separator 100 according to the present disclosure includes an electrolyte-holding layer 110, which includes an electrode reactive layer 111 as a …
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A separator for an electrochemical device which comprises an electrolyte- holding layer comprising: a non-woven web layer; and an electrode reactive layer disposed on one surface of the non-woven web layer, wherein the electrode reactive layer comprises a carbide of organic polymer material, has a porous structure and is disposed at the outermost side of at least one surface of both surfaces of the separator.
The separator for an electrochemical device according to claim 1, which further comprises a porous substrate having a porous structure, wherein the electrolyte- holding layer is disposed on at least one surface of the porous polymer substrate, the porous substrate and the non-woven web layer are stacked so that they are in surface contact with each other, and thus the electrode reactive layer is disposed on the outermost surface of the separator.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrolyte-holding layer comprises the electrode reactive layer fo rm ed integrally with the non-woven web layer by the carbonization of the surface portion of the non-woven web substrate through pyrolysis, and the surface portion is a portion having a thickness ranging from the surface of the non- woven web substrate to a predetermined depth.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrode reactive layer comprises graphitic carbon as a product generated by carbonization through the pyrolysis of the non-woven web substrate, and the non-woven web comprises a highly heat resistant plastic engineering polymer resin.
The separator for an electrochemical device according to claim 1, wherein the electrode reactive layer has a thickness of 100 nm⁻⁵ m.
The separator for an electrochemical device according to claim 1, wherein the electrolyte-holding layer has a porosity of 40-70%.
A lithium-sulfur battery which comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode comprises a sulfide compound as an electrode active material, the separator is the same as defined in any one of claims 1 to 10, and the separator is disposed so that the electrode reactive layer faces the positive electrode.
A method for preparing the separator for an electrochemical device as defined in claim 1, which comprises the steps of: (S₁) preparing a non-woven web substrate; and (S 2) irradiating laser to the surface of the non-woven web substrate so that the surface portion of the non-woven web substrate may be carbonized through pyrolysis to form an electrolyte-holding layer including an electrode reactive layer and a non-woven web layer.
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
A separator was prepared by irradiating laser to the surface of a non-woven web substrate (highly heat resistant engineering polymer resin) to carbonize the surface portion through pyrolysis, forming an electrode reactive layer (graphitic carbon/laser-induced graphene) integrated with the non-woven web layer. SEM imaging confirmed the porous surface morphology of the electrode reactive layer. Raman spectrometry confirmed graphitic carbon character. The separator was assembled into a lithium-sulfur battery with the electrode reactive layer facing the positive electrode (sulfide compound), and electrochemical performance (discharging capacity, overvoltage, Coulombic efficiency vs. cycle number) was evaluated and compared against Comparative Examples 1 and 2.
Layer stacks claimed or described, ordered top of device to substrate.
separator for electrochemical device
lithium-sulfur battery
Materials described outside the worked examples.
porous substrate
polysulfone polymer resin (PSF)
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrode reactive layer thickness | 100–5000 nm | carbide of organic polymer material (electrode reactive layer) |
electrolyte-holding layer porosity | 40–70 % |
Table 1
The results are shown in the following Table 1.
p. 14
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,644,290Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the separator 100 according to the present disclosure includes an electrolyte-holding layer 110, which includes an electrode reactive layer 111 as a …
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A separator for an electrochemical device which comprises an electrolyte- holding layer comprising: a non-woven web layer; and an electrode reactive layer disposed on one surface of the non-woven web layer, wherein the electrode reactive layer comprises a carbide of organic polymer material, has a porous structure and is disposed at the outermost side of at least one surface of both surfaces of the separator.
The separator for an electrochemical device according to claim 1, which further comprises a porous substrate having a porous structure, wherein the electrolyte- holding layer is disposed on at least one surface of the porous polymer substrate, the porous substrate and the non-woven web layer are stacked so that they are in surface contact with each other, and thus the electrode reactive layer is disposed on the outermost surface of the separator.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrolyte-holding layer comprises the electrode reactive layer fo rm ed integrally with the non-woven web layer by the carbonization of the surface portion of the non-woven web substrate through pyrolysis, and the surface portion is a portion having a thickness ranging from the surface of the non- woven web substrate to a predetermined depth.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrode reactive layer comprises graphitic carbon as a product generated by carbonization through the pyrolysis of the non-woven web substrate, and the non-woven web comprises a highly heat resistant plastic engineering polymer resin.
The separator for an electrochemical device according to claim 1, wherein the electrode reactive layer has a thickness of 100 nm⁻⁵ m.
The separator for an electrochemical device according to claim 1, wherein the electrolyte-holding layer has a porosity of 40-70%.
A lithium-sulfur battery which comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode comprises a sulfide compound as an electrode active material, the separator is the same as defined in any one of claims 1 to 10, and the separator is disposed so that the electrode reactive layer faces the positive electrode.
A method for preparing the separator for an electrochemical device as defined in claim 1, which comprises the steps of: (S₁) preparing a non-woven web substrate; and (S 2) irradiating laser to the surface of the non-woven web substrate so that the surface portion of the non-woven web substrate may be carbonized through pyrolysis to form an electrolyte-holding layer including an electrode reactive layer and a non-woven web layer.
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
A separator was prepared by irradiating laser to the surface of a non-woven web substrate (highly heat resistant engineering polymer resin) to carbonize the surface portion through pyrolysis, forming an electrode reactive layer (graphitic carbon/laser-induced graphene) integrated with the non-woven web layer. SEM imaging confirmed the porous surface morphology of the electrode reactive layer. Raman spectrometry confirmed graphitic carbon character. The separator was assembled into a lithium-sulfur battery with the electrode reactive layer facing the positive electrode (sulfide compound), and electrochemical performance (discharging capacity, overvoltage, Coulombic efficiency vs. cycle number) was evaluated and compared against Comparative Examples 1 and 2.
Layer stacks claimed or described, ordered top of device to substrate.
separator for electrochemical device
lithium-sulfur battery
Materials described outside the worked examples.
porous substrate
polysulfone polymer resin (PSF)
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrode reactive layer thickness | 100–5000 nm | carbide of organic polymer material (electrode reactive layer) |
electrolyte-holding layer porosity | 40–70 % |
Table 1
The results are shown in the following Table 1.
p. 14
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,644,290Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the separator 100 according to the present disclosure includes an electrolyte-holding layer 110, which includes an electrode reactive layer 111 as a …
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A separator for an electrochemical device which comprises an electrolyte- holding layer comprising: a non-woven web layer; and an electrode reactive layer disposed on one surface of the non-woven web layer, wherein the electrode reactive layer comprises a carbide of organic polymer material, has a porous structure and is disposed at the outermost side of at least one surface of both surfaces of the separator.
The separator for an electrochemical device according to claim 1, which further comprises a porous substrate having a porous structure, wherein the electrolyte- holding layer is disposed on at least one surface of the porous polymer substrate, the porous substrate and the non-woven web layer are stacked so that they are in surface contact with each other, and thus the electrode reactive layer is disposed on the outermost surface of the separator.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrolyte-holding layer comprises the electrode reactive layer fo rm ed integrally with the non-woven web layer by the carbonization of the surface portion of the non-woven web substrate through pyrolysis, and the surface portion is a portion having a thickness ranging from the surface of the non- woven web substrate to a predetermined depth.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrode reactive layer comprises graphitic carbon as a product generated by carbonization through the pyrolysis of the non-woven web substrate, and the non-woven web comprises a highly heat resistant plastic engineering polymer resin.
The separator for an electrochemical device according to claim 1, wherein the electrode reactive layer has a thickness of 100 nm⁻⁵ m.
The separator for an electrochemical device according to claim 1, wherein the electrolyte-holding layer has a porosity of 40-70%.
A lithium-sulfur battery which comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode comprises a sulfide compound as an electrode active material, the separator is the same as defined in any one of claims 1 to 10, and the separator is disposed so that the electrode reactive layer faces the positive electrode.
A method for preparing the separator for an electrochemical device as defined in claim 1, which comprises the steps of: (S₁) preparing a non-woven web substrate; and (S 2) irradiating laser to the surface of the non-woven web substrate so that the surface portion of the non-woven web substrate may be carbonized through pyrolysis to form an electrolyte-holding layer including an electrode reactive layer and a non-woven web layer.
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
A separator was prepared by irradiating laser to the surface of a non-woven web substrate (highly heat resistant engineering polymer resin) to carbonize the surface portion through pyrolysis, forming an electrode reactive layer (graphitic carbon/laser-induced graphene) integrated with the non-woven web layer. SEM imaging confirmed the porous surface morphology of the electrode reactive layer. Raman spectrometry confirmed graphitic carbon character. The separator was assembled into a lithium-sulfur battery with the electrode reactive layer facing the positive electrode (sulfide compound), and electrochemical performance (discharging capacity, overvoltage, Coulombic efficiency vs. cycle number) was evaluated and compared against Comparative Examples 1 and 2.
Layer stacks claimed or described, ordered top of device to substrate.
separator for electrochemical device
lithium-sulfur battery
Materials described outside the worked examples.
porous substrate
polysulfone polymer resin (PSF)
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrode reactive layer thickness | 100–5000 nm | carbide of organic polymer material (electrode reactive layer) |
electrolyte-holding layer porosity | 40–70 % |
Table 1
The results are shown in the following Table 1.
p. 14
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,644,290Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the separator 100 according to the present disclosure includes an electrolyte-holding layer 110, which includes an electrode reactive layer 111 as a …
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A separator for an electrochemical device which comprises an electrolyte- holding layer comprising: a non-woven web layer; and an electrode reactive layer disposed on one surface of the non-woven web layer, wherein the electrode reactive layer comprises a carbide of organic polymer material, has a porous structure and is disposed at the outermost side of at least one surface of both surfaces of the separator.
The separator for an electrochemical device according to claim 1, which further comprises a porous substrate having a porous structure, wherein the electrolyte- holding layer is disposed on at least one surface of the porous polymer substrate, the porous substrate and the non-woven web layer are stacked so that they are in surface contact with each other, and thus the electrode reactive layer is disposed on the outermost surface of the separator.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrolyte-holding layer comprises the electrode reactive layer fo rm ed integrally with the non-woven web layer by the carbonization of the surface portion of the non-woven web substrate through pyrolysis, and the surface portion is a portion having a thickness ranging from the surface of the non- woven web substrate to a predetermined depth.
The separator for an electrochemical device according to claim 1, wherein the organic polymer material is a non-woven web substrate, the electrode reactive layer comprises graphitic carbon as a product generated by carbonization through the pyrolysis of the non-woven web substrate, and the non-woven web comprises a highly heat resistant plastic engineering polymer resin.
The separator for an electrochemical device according to claim 1, wherein the electrode reactive layer has a thickness of 100 nm⁻⁵ m.
The separator for an electrochemical device according to claim 1, wherein the electrolyte-holding layer has a porosity of 40-70%.
A lithium-sulfur battery which comprises a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode comprises a sulfide compound as an electrode active material, the separator is the same as defined in any one of claims 1 to 10, and the separator is disposed so that the electrode reactive layer faces the positive electrode.
A method for preparing the separator for an electrochemical device as defined in claim 1, which comprises the steps of: (S₁) preparing a non-woven web substrate; and (S 2) irradiating laser to the surface of the non-woven web substrate so that the surface portion of the non-woven web substrate may be carbonized through pyrolysis to form an electrolyte-holding layer including an electrode reactive layer and a non-woven web layer.
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
A separator was prepared by irradiating laser to the surface of a non-woven web substrate (highly heat resistant engineering polymer resin) to carbonize the surface portion through pyrolysis, forming an electrode reactive layer (graphitic carbon/laser-induced graphene) integrated with the non-woven web layer. SEM imaging confirmed the porous surface morphology of the electrode reactive layer. Raman spectrometry confirmed graphitic carbon character. The separator was assembled into a lithium-sulfur battery with the electrode reactive layer facing the positive electrode (sulfide compound), and electrochemical performance (discharging capacity, overvoltage, Coulombic efficiency vs. cycle number) was evaluated and compared against Comparative Examples 1 and 2.
Layer stacks claimed or described, ordered top of device to substrate.
separator for electrochemical device
lithium-sulfur battery
Materials described outside the worked examples.
porous substrate
polysulfone polymer resin (PSF)
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrode reactive layer thickness | 100–5000 nm | carbide of organic polymer material (electrode reactive layer) |
electrolyte-holding layer porosity | 40–70 % |
Table 1
The results are shown in the following Table 1.
p. 14
Related documents with shared materials, methods, properties, or citations.
polyethersulfone polymer resin (PES)
polyetherimide polymer resin (PEI)
polyphenylenesulfide polymer resin (PPS)
polyetheretherketone polymer resin (PEEK)
polyarylate polymer resin (PA)
polyamideimide polymer resin (PAI)
polyimide polymer resin (PI)
polyamide polymer resin
polyolefin polymer resin
sulfide compound
sulfur-carbon composite compound
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
| — |
Voltage | ≤ 1.75 V | — |
polyethersulfone polymer resin (PES)
polyetherimide polymer resin (PEI)
polyphenylenesulfide polymer resin (PPS)
polyetheretherketone polymer resin (PEEK)
polyarylate polymer resin (PA)
polyamideimide polymer resin (PAI)
polyimide polymer resin (PI)
polyamide polymer resin
polyolefin polymer resin
sulfide compound
sulfur-carbon composite compound
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
| — |
Voltage | ≤ 1.75 V | — |
polyethersulfone polymer resin (PES)
polyetherimide polymer resin (PEI)
polyphenylenesulfide polymer resin (PPS)
polyetheretherketone polymer resin (PEEK)
polyarylate polymer resin (PA)
polyamideimide polymer resin (PAI)
polyimide polymer resin (PI)
polyamide polymer resin
polyolefin polymer resin
sulfide compound
sulfur-carbon composite compound
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
| — |
Voltage | ≤ 1.75 V | — |
polyethersulfone polymer resin (PES)
polyetherimide polymer resin (PEI)
polyphenylenesulfide polymer resin (PPS)
polyetheretherketone polymer resin (PEEK)
polyarylate polymer resin (PA)
polyamideimide polymer resin (PAI)
polyimide polymer resin (PI)
polyamide polymer resin
polyolefin polymer resin
sulfide compound
sulfur-carbon composite compound
FIG. 2, the separator 100 is disposed in such a manner that it allows electrical insulation between a positive electrode 130 and a negative electrode 140 …
FIG. 3a. Comparative Example 2 A non-woven web (polyimide, porosity 70%, thickness 25 m) was laminated with a porous film (thickness 20 m, porosity 40%) made of …
FIG. 4 is a scanning electron microscopic (SEM) image of the non-woven web surface as the surface of the separator according to Comparative Example 2.
FIG. 5 is a SEM image illustrating the surface of the electrode reactive layer according to Example. It can be seen that the non-woven web surface was …
FIG. 6 shows the results of Raman spectrometry for the electrode reactive layer according to Example. It can be seen from the G and D bands detected at around …
FIG. 7 is a graph illustrating the discharging capacity and over-voltage of each of Example, Comparative Example 1 and Comparative Example 2.
FIG. 8 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 1 as a function of charge/discharge cycles.
FIG. 9 is a graph illustrating discharging capacity and Coulombic efficiency of Comparative Example 2 as a function of charge/discharge cycles.
FIG. 10 is a graph illustrating discharging capacity and Coulombic efficiency of Example as a function of charge/discharge cycles. BEST MODE Hereinafter, a …
| — |
Voltage | ≤ 1.75 V | — |