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Li-S Energy Advances Manufacturing Scale-Up and Expands Testing Capacity

Energy Storage By Victor Sage 4 min read

Li-S Energy secured $1.9 million from ARENA to fund a feasibility study scaling production to 1 GWh, expanded its Battery Testing Centre, and delivered its first drone battery pack under a government program, while progressing key transport certifications.

  • Received $1.9M ARENA tranche for Phase 4 feasibility study
  • Battery Testing Centre floor space more than doubled
  • First complete battery pack delivered for drone testing
  • CASA air transport approval obtained; US approvals pending
  • UN38.3 certification advanced with five of seven tests passed

ARENA Funding Unlocks 1 GWh Manufacturing Feasibility Study

Li-S Energy (ASX:LIS) took a major step toward scaling its lithium-sulfur battery production with the receipt of the first $1.9 million tranche from its $7.8 million grant awarded by the Australian Renewable Energy Agency (ARENA). This funding kickstarts a Front End Loading Level 1 (FEL-1) feasibility study led by global engineering consultancy HATCH, aiming to map out the infrastructure, capital costs, and timelines for ramping up to 1 GWh of annual battery production capacity. The study is expected to conclude early in Q3 2026, setting the stage for a significant manufacturing scale-up beyond its existing Geelong facility. This follows the company’s earlier announcement of the full grant award and manufacturing ambitions, reinforcing its transition from research to commercialisation $1.9M ARENA tranche.

Battery Testing Centre Expansion Accelerates Development

In parallel with its manufacturing plans, Li-S Energy more than doubled the floor space of its Battery Testing Centre by leasing an additional facility bay. This expansion added 88 new cell cycling channels, blast-proof thermal chambers, high-power testing capabilities for modules and packs, temperature-controlled storage, and high-pressure containment infrastructure tailored for undersea testing applications. The enhanced facility will accelerate product development cycles and support multiple simultaneous evaluation programs, including those related to the company’s defence and aerospace partnerships. This boost in testing infrastructure complements the company’s efforts to generate independent performance data critical for partner evaluations and certification processes.

First Drone Battery Pack Delivered Under Government-Backed Program

March saw Li-S Energy deliver its first complete battery pack to VTOL Aerospace for bench testing under the Emerging Aviation Technology Partnership (EATP), a federally supported initiative targeting advanced unmanned aerial platforms. Unlike previous cell-only deliveries, this integrated pack includes the company’s lithium-sulfur cells combined with a Battery Management System and control electronics. The pack features Li-S Energy’s new Power Cell technology, designed to meet the high instantaneous power demands of take-off and solar variability scenarios, marking a critical milestone in offering end-to-end power solutions to drone and defence customers.

Air Transport Certifications Progress with CASA Approval Achieved

Securing regulatory approvals for air transport remains a key hurdle for Li-S Energy’s international commercial ambitions. The company obtained Australian Civil Aviation Safety Authority (CASA) approval for the air transport of its lithium-sulfur cells during the quarter, clearing the path for domestic and international shipments by air freight. Meanwhile, US approvals from the Pipeline and Hazardous Materials Safety Administration (PHMSA) and the Federal Aviation Administration (FAA) remain in progress. These US certifications are vital for unlocking substantial partner evaluation programs currently on hold pending cell deliveries. The company also advanced its UN38.3 battery safety certification, successfully passing five of the seven required tests and acquiring dedicated thermal and vibration testing equipment to expedite the remaining assessments.

Strategic Partnerships Extend to Defence and Aerospace Applications

Li-S Energy initiated initial battery pack design work for the Praetorian Aeronautics Dagger Interceptor, a counter-UAV platform with planned production volumes of 10,000 units annually, representing a meaningful sovereign defence opportunity. Concurrently, preparations advanced for high-pressure cell testing with UK-based MSubs, targeting extreme-depth unmanned underwater vehicle (UUV) applications for US and UK defence customers. These projects leverage the company’s expanded testing capabilities, including the newly commissioned high-pressure containment infrastructure, and align with its broader strategy to serve high-value defence and aerospace markets. The company’s presence at the Singapore International Airshow, supported by Austrade, further underscores its commitment to international market engagement and partner development strategic defence partnerships.

Financial Activity Reflects Investment in Growth and Infrastructure

Li-S Energy reported net operating cash outflows of $419,000 for the quarter, primarily driven by staff costs and administration expenses, partially offset by government grants and interest income. Investing activities generated net inflows of $994,000, largely due to government grant receipts including the ARENA tranche, alongside capital expenditure on property, plant, equipment, and intellectual property development. Payments to related parties totaled $411,000, mainly for research activities with Deakin University, lease payments for production bays, and management services from a PPK Group subsidiary. Financing outflows were limited to $61,000 for lease repayments. The company’s financial management reflects a balance between ongoing development investments and leveraging government support to advance its commercialisation roadmap.

Bottom Line?

Li-S Energy’s progress in scaling manufacturing and expanding testing infrastructure positions it for commercial breakthroughs, but pending US transport approvals and feasibility study outcomes will be pivotal in the coming quarters.

Questions in the middle?

  • Will the FEL-1 feasibility study confirm the viability of a 1 GWh manufacturing scale-up on schedule?
  • How quickly can Li-S Energy secure US air transport approvals to unlock key international partnerships?
  • What impact will expanded testing capacity have on accelerating certification and customer qualification timelines?