GEORIMTECH EN

Principle of Fuel Cells

Fuel Cell: Unlimited electricity generation

(electricity is produced through hydrogen supply).
H2
Air Purification
Water Discharge
H2
Air Purification
Water Discharge

Principle of Electron Flow

Current flow occurs due to the potential difference between oxidation and reduction potential.
Chênh lệch mực nước = chênh lệch điện thế (tạo ra dòng điện tử)
Electron and ion movement occurs by causing oxidation and reduction reactions at the electrode due to the potential difference.

Fuel Cell Core Components

Fuel Cell Stack Structure
MEA stacked in the form of cells by combining with the separator plate.
Fuel Cell 7-Layer MEA Structure
Structure where Sub-gasket and GDL are bonded to both sides of the MEA.

Sub-Gasket

Excellent adhesion and durability through adhesive development tailored to fuel cell operating environments.
Adhesive

1. Material: Modified Phenol Epoxy & Rubber

  • Designed for strong durability in fuel cell operating environments (acid resistance, moisture resistance, heat resistance, high rigidity, adhesive retention).
  • Productivity improvement during processing by adopting curable epoxy (improves leakage issues caused by hardener damage even during impact).
  • Designed with rubber to prevent adhesive damage in vibrating environments.

2. Customizable for optimal equipment conditions.

GDL Bond

Excellent adhesion and durability through adhesive development tailored to fuel cell operating environments.
  • Hydrophobic Material
  • Excellent Printability
  • High Adhesion
  • Quick Curing Time
  • Competitively Low Cost

Electrode-Type Film

Excellent coating and no binder slippage for improved electrode performance.

1. Material: Adhesive PET Film

  • Introduces an adhesive layer for ease of attachment and detachment. Implements precise pattern coating for R2R transfer processes.

2. Advantages: Electrode-specific film is suitable for automated processes.

MEA Automation Process Technology

Development and Patenting of R2R automation equipment process technology
1. Electrode Slurry 2. Coating Process (Electrode) 3. Layer 4. Layer 5. Cutting
mea1 mea2 mea3 mea4 mea5
mea6 mea7 mea8 mea9 mea10
6. GDL Bonding & 7Layer Lami 7. Inspection
MEA_img_1 MEA_img_2
Key Partners

Battery Pack

A unit made by combining multiple battery cells into one, designed to protect against physical shocks from the external environment and capable of performing specific functions. It consists of battery cells, modules, and packs. Equipped with various control and protection systems such as BMS (Battery Management System) and thermal management system for completion.
Importance
“The importance of a battery pack that can improve the performance of an electric vehicle is increasing. Unlike internal combustion engine vehicles, electric vehicles use batteries as power sources, making the battery pack the most crucial component in an electric vehicle, as the vehicle’s performance depends on the performance of the battery pack.”
Functions
By Cell Type: Phosphate, Lithium-Ion, Lithium Polymer By Cell Form: Cylindrical, Prismatic, Pouch Custom design and manufacturing with a primary focus on safety High capacity, high density Implementation of a Long Life Cycle
DBPDV3-X180
Category Contents Notes
Cell LGES INR 21700 M50L
Nominal Voltage 324.72V 88s
Energy Capacity 177.48Ah 36p
Capacity 57.6kWh Cell : 18.2Wh
Voltage Range 220 ~ 360.8V Cell : 2.5 ~ 4.1V
Charging Method CC/CV
Charging Current 120A [max]
Discharge Current 180A [max]
Temperature Operation Charge 0 ~ 45°C / Discharge -20 ~ 55°C
Storage 1 year -20 ~ 25°C
Size 1597 x 1038 x 238 LWH (mm)
Weight 340kg
DBPDV-X130
Category Contents Notes
Cell LGES INR 21700 M50L
Nominal Voltage 332V 90s
Energy Capacity 128.7Ah 26p
Capacity 42.7kWh Cell : 18.2Wh
Voltage Range 300 ~ 369V Cell : 2.5 ~ 4.1V
Charging Method CC/CV
Charging Current 85A [max]
Discharge Current 108A [max]
Temperature Operation Charge 0 ~ 45°C / Discharge -20 ~ 55°C
Storage 1 year -20 ~ 25°C
Kích thước 1655 x 972 x 272 LWH (mm)
Weight 280kg
DBPVT-X90
Category Contents Notes
Cell LGES INR 21700 M50L
Nominal Voltage 14s18p 90s
Energy Capacity 51.66V 14s
Capacity 85.85Ah 18p
Voltage Range 4.43kWh Cell : 18.2Wh
Charging Method CC/CV
Temperature Operation Charge 0 ~ 45°C / Discharge -20 ~ 55°C
Storage 1 year -20 ~ 25°C
Size 350 x 462 x 185 WDH (mm)
Weight 35kg
DBPCNC-X177 / DBSCNC-X177
Category Contents Notes
Cell LGES INR 21700 M50L
Nominal Voltage 44s36p 11s36p x 4ea
Energy Capacity 162.36V 44s
Capacity 177.55Ah 36p
Voltage Range 28.82kWh Cell : 18.2Wh
Charging Method CC/CV
Temperature Operation Charge 0 ~ 45°C / Discharge -20 ~ 55°C
Storage 1 year -20 ~ 25°C
Size 1287 x 987 x 175 WDH (mm)
Weight 190kg ±2kg
DBPSS-NX12
Category Contents
Cell SAMSUNG SDI INR 21700-40T
Configuration 88S3P(264 Cell)
Nominal Voltage 316.8V
Nominal Capacity 12Ah
SOC 90% Charge (@25℃) Charging Voltage 360.8V
Operating Voltage 289V ~ 360.8V
Capacity 10Ah
Standard Charging Current 3A
Maximum Charging Current 5A
Continuous Discharge Current 12A
Instantaneous Discharge -1 (15seconds) 24A
Instantaneous Discharge -2 (5seconds) 36A
Weight about 32kg