Business areas

Customer Support

  • TEL+82-63-715-3020
  • FAX+82-63-715-3021
  • EMAILhycap@vina.co.kr

Customer Support

  • TEL+82-63-715-3020
  • FAX+82-63-715-3021
  • EMAILcarbon@vina.co.kr

Customer Support

  • TEL+82-31-448-3066
  • FAX+82-31-448-3067
  • EMAILhycap@vina.co.kr

Carbon solutions

VINATech is the only producer in the world of catalyst support and catalysts for fuel cells
and MEA (Membrane Electrode Assembly).All of these products are based on the company's patented CNF materials technology

Fuel cell

VINATech supplies catalysts and MEA having an excellent corrosion
resisting property. These properties improve the life cycle of fuel cells
by using crystalline carbons as a catalyst support.

We produce catalyst support divided into three types based on the
corrosion resistance and shape, Two types of catalyst products
classified by the catalyst support and two types of MEA products
using our catalyst solutions which can be expanded to 300 cm2.

Introduction of fuel cells

FC (Fuel Cell) is a device that changes chemical energy to electrical energy and a system that generates energy
continuously unless the fuel supply stops. It has the capabilities of both power generator and battery. FC uses hydrogen and oxygen as its fuel. It is a clean energy source that discharges only water through a chemical process.

Fuel cell products are classified by the type of their electrolytes. The fuel cell products we are currently developing include
PEMFC (Proton Exchange Membrane FC), DMFC (Direct Methanol FC), MCFC (Molten Carbonate FC), and SOFC (Solid Oxide FC).

Type Electrolytes Operating temperatures(℃) Application areas
Proton Exchange Membrane FC
(PEMFC)
Proton Exchange Membrane 50~80 Transportation, Fixed type
for in-building application
Direct Methanol FC
(DMFC)
Proton Exchange Membrane 50~80 Portable backup power supply
unit for mobile devices
Molten Carbonate FC
(MCFC)
Molten Carbonate
(Li2CO3 + K2CO3)
~650 for the distributed generation
Fixed type
Solid Oxide FC
(SOFC)
Ceramic
(ZrO2 / Y2O3)
~1000 for distributed generation in buildings
Fixed type

VINATech's catalyst support, catalyst and MEA products are suitable for PEMFC and DMFC.

Features of VINATech's fuel cell catalyst support products

Fuel cells require micro catalyst particles, 3 nm or below, to improve their catalytic performance. Small particles
cannot be created only with catalysts. Catalysts have to be distributed on catalyst support.

VINATech’s fuel cell catalyst supports are CNF or crystalline carbon-black products which are designed to minimize the shortening of catalysts' life cycle due to corrosion.

Product Name BET(m2/g) XRD(d002)(nm) Fe content(ppm) type
VFS-PL0100 60~70 0.336~0.380 <200 Platelet
VFS-HE0150 100~150 0.340~0.345 <200 Herringbone
VFS-SP0450 400~500 0.345~0.450 <100 Carbon black

*11 BET: Specific surface area in accordance with the theories of Brunauer-Emmett-Teller
*2 XRD(d002): X-Ray Diffraction, inter-layer distance generated by diffraction of X-ray

Microscopic picture of VINATech's catalyst support

Carbon is seen to corrode easily at 1.2 V or above, as a result of its reaction to oxygen. Corrosion of carbon contained in
catalyst supports results in deterioration of catalysts' performance and shortening of the fuel cells' life cycle.

Corrosion of carbon at 1.2 V or above

VINATech's fuel cell catalyst support showed strong corrosion resistance in a carbon corrosion test based on
electrochemical analysis. Corrosion resistance analyses per catalyst supports are as follows.

VFS-P > VFS-H ≥ VFS-SP >> Carbon Black

Features of VINATech's fuel cell catalyst products

VINATech’s fuel cell catalysts are made of platinum, forming 2.5 to 3.0 nm particles that are characterized by broad
reaction areas and excellent corrosion resistance. They are suitable for applications that improve fuel cells' performance and life cycle.

Product Name Content of platinum
catalysts(wt%)
ECSA(m2/g) Particle size
(nm)
Support type
VFC-HE6000 56~60 30~45 2.5~2.8 Herringbone
VFC-SP6000 50~60 2.5~3 Carbon black
【Microscopic pictures of VINATech's catalysts (TEM》]

Our fuel cell catalyst products proved highly resistant to corrosion in a holding test satisfying carbon corrosion
conditions. They also demonstrated a low decrement of reaction area.

Before & After Before& After corrosion test / 1.4V 30 minute holding
Product name ECSA before(m2/g) ECSA after(m2/g) ECSA Change(%)
Pt on Carbon Black 28.6 9.8 -65.7
Pt on VFS-P 31.0 27.4 -11.6

* ECSA : Electrochemical Surface Area

Features of VINATech's fuel cell MEA

VINATech's fuel cell MEA features excellent performance in discharging generated water,
aided by our less-than 100 nm electrode porosity controlling technology.
This product is suitable for improving the performance and life cycle of fuel cells.

Product name Type Size Applications
VFM-PEMFC CCM 3 layer ~ 300cm2 Transportation, Fixed type for in-building application
VFM-DMFC CCG 5 layer ~ 300cm2 Portable backup power supply unit for mobile devices
VINATech MEA

VINATech's fuel cell MEA features excellent performance in discharging generated water, aided by our less-than
100 nm electrode porosity controlling technology. This product is suitable for improving the performance and life cycle of fuel cells.

The result of corrosion holding test
Product name @0.7V
(mA/cm2)
@0.6V
(mA/cm2)
Commercial MEA 670 1,250
VFM-series 675 1,240
The result of cell performance test
부식 홀딩 시험 결과 그래프
Product
name
Before
(mA/cm2)
After
(mA/cm2)
Decrement
(%)
Commercial
MEA
1.20 0.13 -88.0
VFM-series 1.17 1.01 -15.0
The result of corrosion holding test  / @0.6V

VINATech MEA products guarantee the very best performance along with the outstanding capability to combine with wide ranging applications even including low humidification environments.

Cycle OCV(V) Performance
(@600 mA)
Performance
(@1200 mA)
Intial 0.941 0.708 0.615
1000 cycle 0.931 0.708 0.601
5000 cycle 0.921 0.695 0.576
Before After
ECSA(㎡/g) 41.8 30.8

Application areas of VINATech's fuel cell components

VINATech offers combined solutions including Catalyst support components, catalysts and MEA, optimized to the customer's application area and specifications. In particular, for MEA, we offer special catalyst support and custom-tailored catalysts to your application areas and requirements. Catalyst support

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