Participated · Series B · Apr 2026

Sepion Technologies develops ultra-thin, drop-in polymer separator coatings and membrane technologies intended to replace legacy ceramic materials in lithium-ion batteries. Its coatings aim to enable higher energy density, faster charging, and improved durability without requiring changes to existing battery manufacturing lines. The company reports its products are currently being manufactured on commercial production lines to support customer qualification with leading global battery manufacturers. Sepion is supporting multiple concurrent qualification programs for electric vehicle, energy storage system, and consumer electronics applications. Led by CEO Peter Frischmann and based in Alameda, CA, the company plans to use recent funding to scale U.S.-based polymer production, expand product lines, and strengthen quality and operations.

Participated · Equity · Nov 2025

Nanoramic, led by CEO and co-founder John Cooley, builds energy storage and advanced material solutions for battery applications. Its core technology, Neocarbonix, is designed to boost energy density and cell longevity while lowering costs and enhancing sustainability across lithium-ion and other battery chemistries. The company collaborates with strategic partners such as Samsung SDI and General Motors to commercialize its materials platform. Recent capital will help scale manufacturing capacity and accelerate product development for automotive and other high-demand sectors. By positioning Neocarbonix as a drop-in solution for multiple battery formats, Nanoramic aims to capture OEM and supplier demand for higher-performance, lower-cost cells. Although revenue and user metrics were not disclosed, the firm’s backing from prominent strategic and financial investors signals commercial traction. The latest financing strengthens its balance sheet and supports broader operational expansion.

Led · Series A · Apr 2024

LiNova Energy, based in Monrovia, CA, has developed a high-energy polymer battery technology intended to replace traditional cathodes that contain cobalt, nickel, and other critical materials. Its ultra-high-energy batteries are targeted at the EV, aerospace, and energy storage markets. The company is led by CEO Michael Nagus and plans to use recent funding to expand research and development, scale operations, and accelerate commercialization. LiNova intends to bring its polymer cathode batteries to market as a more sustainable alternative to current battery chemistries. The article does not disclose operating metrics such as revenue or user numbers.

Participated · Equity · Jun 2023

Forge Nano develops Atomic Layer Deposition (ALD) technology via its Atomic Armor platform, a scalable nano-scale coating system intended to improve performance of semiconductor devices and battery materials. The company is positioned to serve AI-era chip manufacturing and defense battery applications and has described its offerings as advanced surface coatings that unlock peak performance. Forge Nano is based in Denver and has entered into a merger agreement with Archimedes Tech SPAC Partners II to pursue a NASDAQ listing. The company recently closed a $97 million Series D and secured $123 million in PIPE commitments (including a recent $23 million tranche), with strategic participation from Samsung SDI and Horizons Ventures. Upon closing the proposed business combination, Forge Nano would have substantial pro forma cash (over $367 million assuming no redemptions) to fund commercialization and domestic manufacturing expansion. The company intends to use the proceeds to accelerate deployment of its ALD semiconductor equipment platform and expand production of advanced lithium-ion battery materials.

Led · Seed · Feb 2023

XL Batteries is commercializing an organic flow battery that replaces scarce, corrosive vanadium with inexpensive, proprietary organic electrolytes, resulting in safer, non-flammable and lower-cost long-duration energy storage. The technology leverages proven flow-battery architecture while eliminating the need for specialized supply chains, enabling flexible deployment for grid operators, independent power producers, data centers and heavy industry. Recent milestones include a strategic partnership with Prometheus Hyperscale for large-scale data-center installations—the first U.S. flow-battery deployment of its kind—and a commercial-scale pilot with Stolthaven Terminals in Houston. The company follows a capital-light approach aimed at rapid scaling and market readiness. XL Batteries was founded by Columbia University scientists and is headquartered in Marlborough, Massachusetts. The firm positions itself as an LDES leader capable of enhancing grid resilience amid rising demand from electrification and data-center growth. Financially, XL Batteries has just secured $7.5 million in new capital, which will be used to accelerate commercialization and expand operations.