The Team


Petalite has a highly talented team including 3 Ph.D. engineers, a CTO with a 45-year background in power electronics research and a battery molecular researcher. Resulting in a combined 100+ years of experience. This is also reinforced with a excellent board presence with IP and manufacturing, a Management, Board, Advisers and Investors are who’s who of utils, energy, engineering, tech, infrastructure, and industrial commercialisation.

Petalite has recognized the need to expand the management & business development teams in this round of funding has added two experienced NED’s in the team going forward. The company is also looking to bring on COO and sales teams over the next 12 months.


Leigh Purnell – CEO

Leigh is the founder and C.E.O of Petalite. He worked for GE for the several years before starting his first company. He has also been on expeditions around the globe which has led him to write a book, blogs and magazine articles about them, Leigh also does public speaking at various events.


Dr Stavros Pressas – CTO

Dr Stavros Pressas is Petalite’s C.T.O and prior to him joining the team he worked on his own company NSE Ltd in Greece for 15 years. His technical experience and his research interests are mostly focused on the design & manufacturing of equipment and systems on the following areas:

High Switching Frequency Power Supplies
Hybrid Renewable Energy Systems for off-the-grid electrification
Power Electronic Converters
Battery Management Systems
Gen-Set Fuel Saving Systems
Smart Grids


David Mead- NED & Finance Officer

David is a Chartered Accountant with 35 years experience in the profession and industry and commerce. Held positions as Financial Controller, CFO and Group Treasurer roles including HSBC Bank for 15 years.


Akash Gupta- Board Observer

Akash is Co-Founder of Portman Square Capital and is an Angel Investor for Startup Funding Club.


Amadeo Alentorn – Board Observer

Amadeo Alentorn is a fund manager in the Global Equity Team at Merian Global Investors. He first joined the team in 2005, part of Old Mutual at the time. He manages a range of hedge funds, absolute return and global equity funds, and is responsible for directing the systematic equities research programme. He has extensive experience in investment, quantitative research and software development.  Amadeo holds a BEng in Robotics (2000) from the University of Plymouth, an MSc in Computer Science (2001) and a PhD in Computational Finance (2006) from the University of Essex. 


Yanning Li – NED

Yanning is PhD Grad of University of Manchester. As a Materials Science graduate, my background is highly interdisciplinary across 3 distinct areas: Polymers, Nanotechnology and Biomaterials. Her main research interest lies in the production and characterization of carbon nanotubes (CNTs), graphene and nanocarbon based hybrids and composites.


Steve Adams – NED

An engineer and MIET. Steve developed a number of engineering and technology businesses. Co-Founder of aviation software specialists, Russell Adams. Developed the business into becoming one of the top 5 providers of aviation software in the world with over 120 staff managing 1500 aircraft for over 50 major customers with operational bases in Dubai, Singapore, Australia and India.