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High energy-density battery cells
Double the charge for next‑gen anode-free batteries
HeiQ GrapheneX is a new anode-free class of high energy-density battery cells designed for demanding applications where weight, runtime, and power matter. The cells enable higher energy output within the same footprint, supporting longer operation times or reduced battery weight. They are developed for use in real devices and scalable industrial production.
Key benefits
- More than double the energy density compared to conventional lithium‑ion cells (cell‑level testing)
- 350 Wh/kg at 10C per battery cell
- Longer runtime or reduced battery weight at system level
- Extended reach and/or payload for UAVs
- High power capability under demanding operating conditions
- Stable cycling performance under high load
- Designed for drop-in integration into existing lithium‑ion battery cell manufacturing plants
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UN38.3 lithium battery transport certification
Applications and use cases
HeiQ GrapheneX battery applications open up new options across portable electronics, tools, robotics, and next‑generation battery platforms.
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Portable electronics and wearables
Higher energy in compact battery formats.
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UAV Drones and robotics
Extended runtime, reach or payload without increasing battery weight.
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Cordless power tools and professional equipment
Longer runtime with sustained high power output.
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Smart glasses and small form‑factor devices
Enables thin, lightweight power sources for constrained designs.
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OEM pilot projects for next‑generation battery platforms
Supports development of lithium‑metal and anode‑free cell designs.
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The science behind HeiQ GrapheneX battery cells
HeiQ GrapheneX battery cells are based on a proprietary internal material architecture that enables high energy density and stable operat...HeiQ GrapheneX battery cells are based on a proprietary internal material architecture that enables high energy density and stable operation under demanding conditions. The technology is designed to control lithium behavior at critical interfaces inside the cell.
Layered graphene barrier stabilizes lithium‑metal anodes while increasing energy density. -
Frequently Asked Questions (FAQ)
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What is HeiQ GrapheneX for batteries used for?
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How does HeiQ GrapheneX differ from conventional battery materials?
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Is HeiQ GrapheneX ready for industrial use?
Don’t see the answer you’re looking for?Explore HeiQHeiQ GrapheneX is used inside lithium batteries to increase energy density. Performance characterization shows up to double energy density at battery cell level. The technology supports drop-in lithium‑metal and anode‑free cell designs without changing established lithium ion production lines.
Conventional approaches rely on bulk material changes. HeiQ GrapheneX uses a thin graphene membrane that controls lithium behavior at the interface level. This enables lithium‑metal and anode‑free cell designs without the use of flammable graphite.
HeiQ GrapheneX is designed for industrial relevance. It has been validated at cell, battery and device level and is compatible with existing lithium ion battery manufacturing processes.
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News: HeiQ GrapheneX is finalist for the Swiss Technology Award 2026
HeiQ GrapheneX has been selected as a finalist for the Swiss Technology Award 2026 in the Industry Innovation category, one of Switzerland's highest distinctions for technological innovation.Read moreHeiQ GrapheneX has been selected as a finalist for the Swiss Technology Award 2026 in the Industry Innovation category, one of Switzerland's highest distinctions for technological innovation.
Chosen from more than 120 submissions, HeiQ GrapheneX is recognized for its porous graphene technology, which enables next-generation lithium batteries with significantly higher energy density and improved cell stability. The technology forms the basis of HeiQ GrapheneX battery cells, developed in partnership with a leading Korean battery manufacturer.
The Swiss Technology Award jury selected nine finalists across three categories: Inventors, Rising Stars, and Industry Innovation. HeiQ joins EXITFLEX and Sefar as finalists in the Industry Innovation category.
For HeiQ, the nomination continues a long-standing track record at the Swiss Technology Award:- 2010: Winner, HeiQ Oilguard
- 2020: Winner, HeiQ Viroblock
- 2024: Finalist, HeiQ AeoniQ
- 2026: Finalist, HeiQ GrapheneX
The winners will be announced at the Swiss Technology Award Night in Zurich on November 25, 2026.
