Pentalys Energy develops advanced materials for lithium-sulfur batteries, targeting applications where weight is a critical constraint, such as aircraft, drones, and heavy-duty transport. Their integrated system of sulfur-based cathodes and engineered separators addresses the polysulfide shuttle problem to deliver up to 5x higher energy density than conventional lithium-ion batteries. The company's technology also enables long cycle life, high power output, and improved safety by replacing critical materials like nickel and cobalt with abundant sulfur.
Funding
NOK 5M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Conventional lithium-ion batteries rely on heavy materials like nickel and cobalt, limiting their use in weight-sensitive applications such as aviation, marine transport, and drones. These batteries also face safety risks and high material costs, making electrification difficult for hard-to-abate sectors that need high energy density without compromising performance or safety.
Solution
Pentalys Energy develops next-generation materials for lithium-sulfur (Li-S) batteries, offering a holistic approach that simultaneously addresses lifetime, power, energy-per-weight, safety, and cost. Their sulfur-based cathode material and engineered separator work together to control polysulfide migration, a key technical challenge that has historically limited Li-S battery commercialization. The technology delivers up to 5x higher energy density than conventional lithium-ion batteries, enabling new product categories in weight-constrained applications. By replacing critical materials like nickel and cobalt with abundant sulfur, the company reduces both cost and supply chain risks while improving safety through non-oxygen-releasing cathodes and engineered separators.
Target Audience
Primary customers are battery manufacturers and OEMs in hard-to-abate sectors including aviation, marine transport, drones, and heavy-duty vehicles that require lightweight, high-energy-density storage solutions.
Features
- Sulfur-based cathode material designed for high-performance Li-S batteries using advanced nanomaterials
- Engineered separator that selectively blocks polysulfide ions while maintaining high lithium-ion permeability
- Up to 5x higher energy density than conventional lithium-ion batteries
- Rate capabilities up to 8x conventional lithium-ion batteries
- Long cycle life with thousands of cycles enabled by polysulfide control
- Non-oxygen-releasing cathode and engineered separator for enhanced safety at every level