Ensurge Micropower

Ensurge Micropower ASA is a Norwegian publicly traded company specializing in the development and manufacturing of solid-state lithium batteries (SSLB). The firm’s journey began in 2005 as Thin Film Electronics ASA, building on printable memory technology that originated as early as 1994 within Opticom ASA. A significant strategic pivot occurred in January 2020, when the company shifted its focus to solid-state microbatteries, a move followed by its renaming to Ensurge Micropower in 2021. The company maintains corporate headquarters in Oslo, Norway, with its global headquarters, R&D, and manufacturing operations centered in San Jose, California.

The company is led by CEO Shauna McIntyre, appointed in September 2025, who brings extensive leadership experience from the energy and technology sectors, including roles at Northvolt, Google, and Honeywell. She succeeded Lars Eikeland, who now serves as CFO, providing crucial continuity in financial management. Mr. Eikeland has over three decades of leadership experience in multinational corporations like ABB and Rolls-Royce. Former CEO Kevin Barber, who led the company from 2018 through its strategic shift in 2020, has a background in technology investment and finance.

Ensurge's business model centers on designing, developing, and producing rechargeable microbatteries for an expanding market that includes hearables, medical wearables, IoT sensors, and sports and fitness devices. The company is targeting a market gap for batteries in the 1 to 100 milliampere-hour (mAh) range, an area underserved by larger manufacturers focused on the electric vehicle market. Revenue generation is anticipated from direct sales of these microbatteries and a long-term strategy that includes licensing its intellectual property to high-volume manufacturing partners. This dual approach involves producing high-value, customized batteries in-house while outsourcing large-scale production to minimize capital expenditure.

The core product is an ultrathin, flexible, anode-less solid-state lithium microbattery. A key manufacturing distinction is the use of a roll-to-roll process on a 10µm stainless steel substrate, which differs from competitors' ceramic or silicon substrates and is designed for high-volume scalability. These batteries are engineered to be fundamentally safer than conventional lithium-ion batteries by eliminating flammable liquid electrolytes. They offer benefits such as higher energy density, faster charging (80% in 8 minutes), customizable form factors, and the ability to be assembled using standard Surface Mount Technology (SMT) processes. Recent milestones include resolving encapsulation and energy leakage issues, achieving a 90% stacking yield, and delivering 11-layer batteries with a volumetric energy density of 200 Wh/L, with a roadmap to 750 Wh/L in future 43-layer versions.

Keywords: solid-state microbatteries, rechargeable batteries, flexible electronics, roll-to-roll manufacturing, wearable technology, IoT sensors, hearables, medical devices, energy storage solutions, lithium battery technology, printed electronics, high energy density, Surface Mount Technology, anode-less battery, custom form factor battery, Thin Film Electronics, Kevin Barber, Lars Eikeland, Shauna McIntyre, Norwegian technology company