Advancing Battery Breakthroughs.

The Guild Services

  • Leverage our deep expertise in end-to-end pilot planning to navigate the complexities of equipment selection, facility layout, and initial build-out.

    We offer dedicated subcontracting and consulting for "soup-to-nuts" pilot line commissioning, helping you safely specify, procure, and install customized fabrication and testing hardware

  • We offer end-to-end pilot engineering, from electrode fabrication to cell manufacturing, to translate your novel materials and chemistries into functional prototypes.

  • Leverage our team's combined 50+ years of battery industry experience to solve complex engineering challenges.

    • Dedicated R&D Consultation: Bring us your problem statement, and our industry experts will help you solve it. We support corporate R&D and open innovation teams seeking external validation for novel designs.

    • Turnkey Project Execution: We manage contracted prototyping, process design, and dedicated R&D programs on a fixed-price or time-and-materials basis.

    • Battery Guild Fellows / Members Program: Access high-level expert consultation, fractional CTO guidance, and technical due diligence

  • Workforce Development & Training We don't just print batteries; we print battery experts. Our training programs provide the hands-on experience needed to safely operate pilot-grade tools.

    • Stackable Credentials: Employer-validated, in-situ training courses.

    • Flexible Learning: A mix of on-site hands-on practicums, virtual webinars, and professional video instruction

Projects

Greentown Commonwealth Electrons Lab (G-CELL)

Project G-CELL (Greentown Commonwealth Electrons Lab) is New England’s first shared-use, pilot-grade battery fabrication and testing facility designed to bridge the "missing middle" between benchtop R&D and commercial manufacturing.

Operated by Greentown Labs in partnership with The Battery Guild, the lab provides startups, academic researchers, and corporate innovation teams with open access to a state-of-the-art pilot dry room, pilot-scale electrode manufacturing, and standardized cell assembly and testing.

Our Team

The Battery Guild was founded by battery industry veterans with over 50 years of combined experience spanning electrochemistry, commercial cell production, engineering operations, and energy storage commercialization.

Dr. James Fleetwood, Founding Partner

James is a developer and investor in next-generation energy storage technologies with 10 years in battery research and commercialization. He has led projects over $100 million, supported companies raising $500 million+, advised investors on due diligence, and worked with startups growing beyond $100 million valuations. He has also led workforce development initiatives, training over 1,000 individuals in various aspects of battery production. With expertise across diverse chemistries, materials, and manufacturing processes, he is eager to advance battery innovation and U.S. manufacturing while training the next generation of energy professionals.

Reece Daniel, Founding Partner

Reece is a battery researcher and engineer with over 18 years of experience spanning industry and academia. As founder of Daniel Consulting Group, he has led projects across the full battery technology lifecycle, from benchtop beaker cells to commercial cell and pack production. A former Marine Corps helicopter mechanic, Reece brings a rare combination of deep electrochemical expertise and hands-on mechanical discipline to every project he touches, including laboratory design, equipment development, testing protocols, and safety systems.

Dr. Lincoln Miara, Founding Partner

Lincoln is a materials scientist and serial entrepreneur with over 15 years of experience pioneering next-generation battery technologies and AI-driven materials discovery. Currently serving as President of Arcam Corporation, and co-founder of both astralQ and America Power Company, he leads initiatives ranging from robotic inorganic materials discovery and premium cathode material upcycling to AI energy management systems. Previously, he worked as CTO of Pure Lithium and as a Principal Engineer at Samsung Electronics.

Natasha George, Founding Partner

Natasha George is a proven entrepreneur and engineering leader with over 13 years in the battery and micromobility industries advancing early-stage initiatives at the intersection of engineering, product, and operations. She has a proven track record in implementing quality systems, scaling processes, and leading cross-functional teams to solve complex technical and operational challenges. Her achievements include driving 10x battery production scale-ups, developing and deploying standard operating procedures and data-driven workflows, and spearheading multi-million dollar manufacturing expansion plans.

Get in Touch!

Whether you’re a startup, industry member, or enthusiastic supporter, we’d love to hear from you.