초록 ▼

A flat panel DMFC (direct methanol fuel cell) includes a first electrode plate, a set of membrane assemblies, at least a bonding sheet, a second electrode, and fuel container base. Because of the gap between the first/second electrode plates and the membrane assembly when they are laminated, the pre

A flat panel DMFC (direct methanol fuel cell) includes a first electrode plate, a set of membrane assemblies, at least a bonding sheet, a second electrode, and fuel container base. Because of the gap between the first/second electrode plates and the membrane assembly when they are laminated, the present invention provides a method to improve the contact between the first/second electrode plates and the membrane assembly.

대표청구항 ▼

What is claimed is: 1. A method for improving the contact between bipolar plates and membrane electrode assembly (MEA) of a flat panel fuel cell, comprising: providing a bipolar plate and a membrane electrode assembly (MEA), in which the bipolar plate includes at least one electrode region integrat

What is claimed is: 1. A method for improving the contact between bipolar plates and membrane electrode assembly (MEA) of a flat panel fuel cell, comprising: providing a bipolar plate and a membrane electrode assembly (MEA), in which the bipolar plate includes at least one electrode region integrated with a non-metal substrate of the bipolar plate in unitary manner, and wherein the MEA is disposed on the electrode region of the bipolar plate; providing a plurality of conductive bumps directly on the electrode region; and directly contacting the membrane electrode assembly with the plurality of conductive bumps. 2. The method of claim 1 wherein the thickness of the plurality of conductive bumps is greater than 0.1 mm. 3. The method of claim 1 wherein conductive bumps are comprised of tin, lead, and tin-lead alloy. 4. The method of claim 1 wherein the membrane electrode assembly is a solid state membrane electrode assembly. 5. The method of claim 1 wherein the non-metal substrate is comprised of glass fiber reinforced polymeric materials. 6. The method of claim 1 wherein the non-metal substrate is comprised of glass fiber reinforced polymeric materials derived from ANSI-grade FR-1, FR-2, FR-3, FR-4, FR-5, CEM-1, or CEM-3.