Technology - Undercurrent

Energy Was Never Meant to Be Boxed In

Our Nano-Electro Fuel isn’t just a battery—it’s a breakthrough. Liquid energy that flows, scales, and adapts—so you’re not locked into legacy infrastructure.

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Core Benefits

Flow Battery 101

Most batteries store energy in solid cells—efficient at first but with limits: shorter lifespan, fire risk, costly scaling.

Flow batteries store energy in liquid electrolytes held in external tanks. When needed, the liquid flows through a stack that converts it to power. More liquid means longer runtime; more stacks mean more power.

Scalable by Design

Nonflammable

Longer Lifespan

Decoupled Power and Energy

So why haven’t flow batteries taken over yet?

Until now, they were bulky, expensive, and hard to scale. Our Nano-Electro Fuel™ changes that—shrinking the chemistry, simplifying the system, and delivering compact, clean liquid energy for real-world performance.

FEATURES

What’s inside the liquid?

Meet Nano-Electro Fuel (NEF), a nanotechnology-based composite liquid energy carrier—a nanofluid which is safe, iron-rich, water-based and made from abundant U.S. materials.

We suspended battery active nanoparticles in a liquid. Our liquid fuel is stable, safe and best of all flows like water. Abundant. Safe. Circular. Shared.

01
No thermal runway
02
Designed for extreme enviroment
03
Easier to scale and move
04
Recharge like an EV or better, refuel like gas

Brownian Motion = No Settling

Tiny particles, always moving.

No agglomeration
No degredation
Long life shelf

Nanoparticle Scale

Why Size Matters: 
The Power
of Nanoparticles

Our fuel is built at the nanoscale—about about the same sizes as a virus, but engineered for massive impact.

~10,000 nanometers

Typical battery particle.

100 nanometers

Our NEF particles.

100x smaller

Size difference.

A human hair is ~80,000 nanometers wide.

You could fit 800 NEF particles across the tip of a single strand.

Fire Safety

Fireproof by Design

Most lithium ion batteries carry a risk of thermal runaway — fires that start without warning and are nearly impossible to stop. NEF is an aqueous based technology that inherently avoids and mitigates fire risks entirely.

01
No lithium
02
No combustion risk
03
No need for special fire suppression
04
Safe to store, ship, and operate in extreme environments

TECHNOLOGY OVERVIEW

How our system works

Power and energy are coupled in traditional solid battery construction. Flow battery formats innately decouple energy and power. Power Module: Charges + discharges the Nano-Electro Fuel (NEF). Energy Module: Stores NEF at high density.

This decoupled architecture means you can scale energy and power independently. No more overbuilding capacity just to meet one metric to the determinate of the other.

NEF is rechargeable by the same means as any battery, but it is also pumpable. This new design paradigm will allow for rapid refueling. When spent, it can be drained and refilled without taking the system offline.

Manufacturing Reimagined

Other batteries use complex manufacturing — rolled, stacked, welded, and assembled in cleanrooms. We make ours in a single large-batch reactor: add ingredients at the top, fuel comes out the bottom.

Traditional Method

Complex rolling & stacking
Complex assembly processes
Expensive cleanroom facilities
Rare earth materials
Lower energy needs
Higher energy consumption

NEF Method

Single pot batch reactions at standard atmospheric pressures
Standard endothermic pass-through chemical synthesis
Common materials
Continuous flow
Lower energy needs

No Rare Earths

Uses abundant, sustainable materials instead of scarce rare earth elements.

No Bottlenecks

Continuous flow manufacturing scales like a brewery, not a gadget factory.

The Modern Gigafactory

One facility can outscale traditional gigafactories with fewer steps and lower costs.

Timeline

From Lab Experiment to Grid-Scale Reality

From lab innovation to grid-scale solutions, our journey is built on bold engineering and a mission to transform energy storage worldwide.

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2009

FUNDED BY ANL FIRST BASIC SCIENCE INVESTIGATION

Novel nano fluid based flow battery concept.

Argonne National Lab
2012

DEMONSTRATED RECHARGEABLE NANOFLUID

Basic science demonstration of the possibility of rechargeable nanofluids.

DOE | ARPA-E
2014

INFLUIT ENERGY IS FORMED

Commercializing and productizing technology.
2016

CREATED GEN 1 NEF BATTERY PROTOTYPE

Created a working prototype NEF battery with stable voltage charge and discharge.

NFS
2018

POWERED UP TO COMMERCIAL APPLICATION LEVELS

Across two engagements built a battery stack with the goal to scale it up for inclusion into a 1/4 section EVTOL wing demonstration.

NASA
2019

PROVED OPPORTUNITY FOR MILITARY APPLICATION

Built a stationary storage device for remote operating bases.

DARPA
2021

NEF GEN 1 RECHARGING
& REFUELING SCIENCE

US AIR FORCE
2022

KITTY HAWK MOMENT

1st demonstration in a commercial electric utility vehicle.

1st STRATEGIC PARTNER
2023

SCALE UP AND COMMERCIAL MANUFACTURING PLANS FOR A DUAL USE SYSTEM

DIU, AAL, OECIF
2025

UNDERCURRENT ENERGY

2009 2012 2014 2016 2018 2019 2021 2022 2023 2025

GRID 2.0: THE GHOST GRID

Energy Without Limits

Logistics

TRANSPORTATION

UTILITY AND HOME

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