Ensurge ASA – All Remaining Issues Resolved and Batteries Ready for Shipment

Rhea-AI Summary

Ensurge Micropower (OSE: ENSU, OTCQB: ENMPY) has announced the successful resolution of all remaining critical issues with its solid-state microbatteries, making them ready for shipment to strategic partners. The company has completed comprehensive battery evaluations, with 11-layer solid-state batteries on 10um stainless steel meeting all key performance requirements.

Key achievements include:

• Energy density of 200 Wh/L for 11-layer battery, with projected 750 Wh/L for 43-layer stack
• 50+ cycles demonstrated
• 12.5 pulse C-rate
• 8-minute charge time to 80% capacity
• 90% stacking yield
• 24/7 factory operation since February 2025

The company is now advancing to develop higher-capacity variants, starting with a 28-layer configuration before moving to the targeted 43-layer stack. Discussions with a Fortune 500 partner toward a formal joint development agreement are progressing as planned.

Positive

• Successfully resolved all critical technical issues for commercial readiness
• Achieved superior energy density (200 Wh/L) compared to current lithium-polymer batteries (150 Wh/L)
• Demonstrated strong manufacturing metrics with 90% stacking yield
• 24/7 factory operations established
• Advancing discussions with Fortune 500 partner for joint development agreement

Negative

• Current cycle life to 50+ cycles, which may be insufficient for some applications
• Still in early commercialization phase with initial deliveries pending
• Multiple development stages remaining before reaching targeted 43-layer stack configuration

OSLO, Norway, 2 April 2025 – Ensurge Micropower (OSE: ENSU, OTCQB: ENMPY) (“Ensurge” or the “Company”) is pleased to announce that all remaining critical issues related to its solid-state microbatteries have been resolved. This milestone marks the batteries as ready for shipment to strategic partners.

Following up on the Ensurge Business Update of January 20, 2025, the Company has successfully completed two comprehensive battery evaluations for a customer as part of its initial delivery order. The 11-layer solid-state batteries on 10um stainless steel were tested at customer premises for Bluetooth Low Energy (BLE) connectivity and other demanding functional parameters requiring high pulse capacity. These batteries were manufactured on our commercial production line. The results confirmed that all key performance and quality requirements were met.

Ensurge’s solid-state microbatteries are now cleared for broader shipments to its strategic partners and customers for their evaluation.

Leading the development of solid-state microbatteries involves navigating in uncharted territory, which demands rigorous testing, iterative improvements, and continuous refinement of both materials and manufacturing processes. Ensurge’s team has now succeeded in delivering a battery solution that meets—and in several areas exceeds—initial customer specifications.

Key Progress and Achievements:

• Encapsulation: Resolved
• Energy Leakage: Resolved
• Battery Performance: 11-layer battery delivers 200 Wh/L. As stack heights and surface area increase, volumetric energy density (VED) is expected to rise—projected at 750 Wh/L for a 43-layer stack. For comparison, current lithium-polymer batteries typically offer around 150 Wh/L.
• Cycles: 50+ cycles
• Pulse C-rate: 12.5
• Charge time: 8 minutes to 80% capacity demonstrated 
• Stacking Yield: 90%
• Factory Capacity: Operating 24/7 from February 2025.

“Ensurge is proud to see the results of our intensive efforts throughout 2024 and into Q1 2025. This progress not only strengthens our existing relationships with strategic partners, but also positions us well to meet the growing interest we are seeing from new potential customers,” said Lars Eikeland, CEO of Ensurge.

“We have achieved a significant breakthrough with our solid-state battery architecture using a 10-micron stainless steel substrate. In addition, we have made substantial advancements in our joint development efforts with the Fortune 500 partner as referred to in our Q4 2024 report. Discussions toward a formal joint development agreement are progressing as planned,” Eikeland added.

With the successful completion of testing on the 11-layer battery, Ensurge will now accelerate development of higher-capacity variants, first with a 28-layer configuration and then the targeted 43-layer stack. Given that all major technical challenges have been addressed, this next phase involves scaling existing solutions rather than introducing new ones—both in battery design and manufacturing processes. 

About Ensurge Micropower: 

Ensurge is Energizing Innovation (TM) with the first ultrathin, flexible, reliable, and fundamentally safe solid-state lithium microbattery for the 1 to 100 milliampere-hour (mAh) class of wearable devices, connected sensors, and beyond. The innovative Ensurge Microbattery enables energy-dense rechargeable products that are ideal for form-factor-constrained applications including hearables (hearing aids and wireless headphones), digital and health wearables, sports and fitness devices, and IoT sensor solutions that use energy harvesting to power everyday things. The Company's state-of-the-art manufacturing facility, located in the heart of Silicon Valley, combines patented process technology and materials innovation with the scale of roll-to-roll production methods to bring the advantages of Ensurge technology to established and expanding markets.

For more information, please contact:

Lars Eikeland - Chief Executive Officer 

E-mail: lars.eikeland@ensurge.com

This information is considered to be inside information pursuant to the EU Market Abuse Regulation (MAR) and is subject to the disclosure requirements pursuant to MAR article 17 and section 5 -12 of the Norwegian Securities Trading Act. This stock exchange release was published by Ståle Bjørnstad, VP, Corporate Development and IR, on 2 April 2025 at 19:35 CET.

FAQ

What are the key performance metrics of Ensurge's (ENMPY) new solid-state microbatteries?

The 11-layer batteries achieve 200 Wh/L energy density, 50+ cycles, 12.5 pulse C-rate, and 8-minute charging to 80% capacity, with 90% stacking yield.

How does Ensurge's (ENMPY) battery energy density compare to current lithium-polymer batteries?

Ensurge's projected 43-layer stack will achieve 750 Wh/L, compared to typical lithium-polymer batteries at 150 Wh/L.

What is the current production status of Ensurge's (ENMPY) microbattery facility?

The facility has been operating 24/7 since February 2025, with batteries manufactured on their commercial production line.

What are Ensurge's (ENMPY) next development steps for their microbatteries?

Ensurge is scaling up to develop 28-layer configuration batteries before moving to the targeted 43-layer stack.

What applications are targeted for Ensurge's (ENMPY) microbatteries?

The batteries target 1-100 mAh applications including hearables, digital/health wearables, sports/fitness devices, and IoT sensor solutions.