Vanadium Redox Flow Battery:  A Better Solution

As anyone who owns an iPhone, laptop computer or a tablet knows, lithium ion batteries degrade with each discharge/charge cycle. This phenomenon is no different with grid-scale lithium-ion batteries as physical degradation occurs over time resulting in decreased performance and thus the increased cost of replacing degraded cells.

Vanadium Redox batteries don’t degrade like lithium-ion or lead acid batteries do, thus, when paired with Vionx’s flow battery design and industrial quality manufacturing, the charge-discharge cycle of a Vionx battery can continue indefinitely without compromise.  The result is a safer, more reliable and cost efficient energy storage offering for our customers.

At the heart of Vionx’s VRB design is the battery stack flow field design from United Technologies Corporation.  Over the course of nearly a decade of research, UTC designed, developed, and patented a unique battery stack that achieves the ideal characteristics of the two basic types of flow battery designs without either of their shortcomings. UTC’s stack design achieves a high-power density and a relatively high efficiency based on lower parasitic pumping loads.  UTC is an equity owner of Vionx and has granted exclusive rights to the technology.

Modular Architecture

Maximizes energy density & minimizes footprint to reduce material and site costs

  • Optimal system sizing for each application
  • Flexibility to add power or energy as project needs change over time
  • Reduces container spacing & pipe runs
  • Minimizes moving components via centralization of all pumps, controls, etc. in stack container
  • Electrolyte containers have no moving parts

Durable, Quality Components

Extended system life while minimizing operational expense

  • Extended system life while minimizing operational expense
  • Materials meet chemical industry standards
  • Containers are marine grade for maximum climate resistance

YEAR LIFETIME

20 YEARS, FULL CAPACITY

Bankable performance. No cycle limits. No degradation. No augmentation. No replacement.

Modular Design Customizable to Easily Meet Your Needs

Energy Storage Module VNX1200-4 VHX1200-6 VHX1200-8
Energy Storage (MWh) 4.8 MWh 6.6 MWh 8.4 MWh
Usable Depth of Discharge 100% 100% 100%
Life 20 years (unlimited cycles)
Power Rating 1.2 MW AC (2 Stack Containers)
DC Footprint 185 m2 / 2,000 ft2 195 m2 / 2,100 ft2 205 m2 / 2,200 ft2
DC Efficiency (stack) 78% 78% 78%
DC Voltage 500V-800V DC operating range
AC Efficiency 68% 68% 68%
Signal Response <1 Second electrolyte pumps ON
<1 Minute electrolyte pumps OFF
Interconnection Standard IEEE 1547
Operating Ambient Temperature -40°C to 45°C / -40°F to -113°F
Relative Humidity o to 100%

VNX 2400-4: For Urban Higher Power Needs

Energy Storage Module

VNX2400-4

Energy Storage (MWh)

9.6 MWh

Usable Depth of Discharge 100%
Life 20 years (unlimited cycles)
Power Rating

2.4 MW AC

DC Footprint 185 m2 / 2,000 ft2
DC Efficiency (stack)

68%

DC Voltage 500V-800V DC operating range
AC Efficiency 68%
Signal Response

<1 Second / <1 Minute

Interconnection Standard IEEE 1547
Operating Ambient Temperature -40°C to 45°C / -40°F to -113°F
Relative Humidity o to 100%
Energy Storage Module

VNX2400-8

Energy Storage (MWh)

16.8 MWh

Usable Depth of Discharge 100%
Life 20 years (unlimited cycles)
Power Rating

2.4 MW AC

DC Footprint 205 m2 / 2,200 ft2
DC Efficiency (stack)

78%

DC Voltage 500V-800V DC operating range
AC Efficiency 68%
Signal Response

<1 Second / <1 Minute

Interconnection Standard IEEE 1547
Operating Ambient Temperature -40°C to 45°C / -40°F to -113°F
Relative Humidity o to 100%

VNX 2400-8 : Greater Duration for Urban Applications

SAFETY IS
A TOP PRIORITY

An aqueous, non-flammable electrolyte with physically separated reactants. Double wall containment integral to every container.

PROVEN CHEMISTRY &
PROVEN MATERIALS

Decades of validation, trusted suppliers, and world-class pedigree.

DURABLE, EFFICIENT, &
SIMPLE DESIGN

A patented flow field delivers high power at low pressure, minimizing operating stresses. A simple, efficient design lowers cost, maximizes reliability, and minimizes footprint.

FULLY MODULAR
ARCHITECTURE

Independent power and energy allows for optimal sizing and allows for capacity to be added simply and cost-efficiently as grid conditions change.