Sovereign Post-Lithium Energy Storage

The Future of Low-Cost Energy Storage

Beyond Lithium. Beyond Limits. Within Reach.

Introducing the Anode-Less Sodium Polymer Battery — a vertically integrated battery technology designed to dramatically lower battery costs while improving sustainability, safety, and supply chain resilience.

CEC Grant Recipient

LLNL Collaboration Partner

Partner With Us Explore the Platform

Sodium-Based

Lowest cost/kWh

Circular by Design

Sovereign Supply Chain

Ultra-Low Cost Eliminating expensive materials and simplifying manufacturing

Enhanced Safety Non-flammable solid-state polymer electrolyte

Sustainable by Design Abundant materials and circular battery lifecycle

Supply Chain Resilience Domestic sourcing and vertical integration

Performance Through Simplicity

Ultra-Low-Cost Energy Storage

DarmokTech is developing a new generation of batteries built around an anode-less sodium architecture that eliminates costly materials, simplifies manufacturing, and enables domestic production. By replacing traditional copper and carbon components with lightweight aluminum and abundant sodium-based materials, our platform has the potential to deliver significantly lower costs while maintaining high performance and safety.

Aluminum Current Collector

Cathode Sodium Iron Phosphate

MACFB

Polymer Electrolyte LLNL co-dev

Na⁺ plates here on charge

Aluminum Current Collector

Anode-less cell architecture

✓ Anode-Less Architecture — our patented design eliminates the conventional hard carbon anode, reducing material usage, lowering manufacturing complexity, and increasing energy density. Our unique sodiophilic current collector surface modification enables uniform plating of sodium directly on the aluminum current collector.
✓ Advanced Solid-State Polymer Electrolyte — designed for anode-less architecture and developed in collaboration with Lawrence Livermore National Laboratory (LLNL), our advanced polymer electrolyte is non-flammable and designed to enable safe and reliable battery operation.
✓ Intelligent Cell Design — our proprietary cell architecture manages volume changes during charge and discharge, enhancing performance, durability, and long-term reliability.
✓ Vertical Integration Strategy — DarmokTech is making significant progress in the development of an advanced, carbon-coated, nanoscale sodium iron phosphate cathode incorporating unique performance-enhancing additives, using our proprietary and scalable Mechanochemical Fluid Bed (MACFB) process.

Abundant Materials. A Sustainable Future.

No nickel. No cobalt. No graphite. Our platform is built entirely on elements that are plentiful, domestically sourceable, and ethically unambiguous.

Raw battery materials — sodium crystals, aluminum, polymer membrane, and iron — arranged in a circular composition

Na — Sodium Al — Aluminum Polymer Electrolyte Fe — Iron

Building a cleaner, more secure supply chain.

Sustainability Built In

Batteries designed to be recovered, not shredded.

Unlike conventional batteries that require energy-intensive shredding and material separation, our technology is being developed with disassembly and material recovery in mind — enabling a more sustainable and circular battery lifecycle built on materials that are abundant and domestically sourceable.

✓ Circular by Design

Our proven cell and packaging design, coupled with an on-demand degradable electrolyte developed by LLNL, enables straightforward battery disassembly without the need for energy-intensive shredding, allowing valuable materials to be recovered in their functional form for direct reuse or recycling. This approach paves the way for a truly circular battery lifecycle, replacing the industry's traditional extract-to-waste model.

✓ Abundant Materials

Sodium is one of the most abundant elements on Earth. Our platform eliminates dependence on nickel, cobalt, graphite, and other supply-constrained materials, reducing both environmental impact and supply-chain risk.

Battery lifecycle: raw materials, assembled cell, disassembly, and recovered materials in a circular arrangement

↻ Raw Inputs Complete Cell Disassembly & Recovery Recovered Materials

✓ Sovereign Manufacturing

DarmokTech's battery platform utilizes abundant, domestically available materials, reducing dependence on foreign-controlled critical minerals. Its focus on emerging sodium and solid-state technologies—where supply chains and intellectual property are still evolving—creates a unique opportunity for U.S. leadership in next-generation battery manufacturing.

✓ California Innovation

Supported by the California Energy Commission and developed in collaboration with leading national laboratories, DarmokTech is helping advance next-generation energy storage technologies in the United States.

Grid-Scale Application

Powering a Cleaner Grid

Built for Long-Duration Energy Storage

As renewable energy penetration grows, the grid needs storage that can shift hours of power — not just minutes. DarmokTech's anode-less sodium battery is optimized precisely for this challenge: multi-hour discharge, inherently safe chemistry, and a cost structure designed to make long-duration storage economically viable at scale.

Renewable energy time-shifting
Utility and commercial grid storage
Off-grid and energy-access markets
Markets requiring domestic supply chains

Utility-scale battery energy storage installation at dusk

Multi-Hour Duration Designed for hours of energy delivery to support renewable time-shifting

Safe. Stable. Non-Flammable. Solid-state polymer electrolyte eliminates flammable liquid electrolyte entirely

Lowest Cost Energy Storage Abundant materials and simplified manufacturing target the lowest possible system costs

Our Mission

To deliver the world's lowest-cost sovereign batteries and define—and ultimately dominate—the post-lithium battery future.

DarmokTech is a Livermore, California-based battery technology company developing ultra-low-cost, sustainable, and sovereign energy storage solutions. We are pioneering next-generation sodium and solid-state battery technologies — where the supply chain and intellectual property landscape are still evolving, creating opportunities for new global leaders.

Through strategic collaborations with national laboratories and industry experts, DarmokTech is building a vertically integrated battery platform designed to dramatically lower battery costs while enhancing sustainability, supply chain resilience, and U.S. manufacturing competitiveness.

Privately & Government Funded Grant recipient from the California Energy Commission

LLNL Core high-conductivity polymer electrolyte developed with Lawrence Livermore National Laboratory

Post-Lithium Focused on sodium and solid-state architectures where the global playing field is still evolving

Leadership & Advisors

DarmokTech draws on deep expertise across battery science, national laboratory research, industry commercialization, and venture capital.

Founder & CEO

Deepak Upadhyaya, PhD, MBA

Founder & CEO

Lawrence Berkeley National Laboratory

Dr. Vince Battaglia

Technical Advisor

Lawrence Livermore National Laboratory

Dr. Marissa Wood

Technical Advisor

Enovix

Dr. Jon Doan

Technical Advisor

Invati Capital

Mr. Mukesh Patel

Business Advisor

Lawrence Livermore National Laboratory

Dr. Johanna Schwartz

Electrolyte Collaborator

Lawrence Livermore National Laboratory

Dr. Matthew Mcbride

Electrolyte Collaborator

Pittsburg Unified School District

Matthew Belasco

Application Advisor

Source-Engineering Inc.

Abhi Desai

Pilot Manufacturing Advisor

Join Us

We are always looking for talented engineers, scientists, and innovators who want to help redefine the future of energy storage. Send a summary of your hands-on skills and tell us why you would be a great fit.

HireMe@DarmokTech.com

Let's build the future of batteries—here.

DarmokTech is seeking early customers, strategic partners and vendors who share our vision of affordable, sovereign, and sustainable energy storage.

Early Customers

Request evaluation samples for cost-sensitive applications in developing economies, including e-bikes, street vendors, and toys.

Strategic Partnerships

DarmokTech provides technology, IP, and technical expertise to help strategic partners establish pilot manufacturing lines and accelerate commercialization.

Vendor Partnerships

DarmokTech is seeking suppliers of battery manufacturing equipment, raw materials, and production components to help build a scalable, sovereign battery ecosystem.