We Are Jena Flow Batteries.

Sustainable, Scalable, and Economical Energy Storage Solutions

Jena Flow Batteries GmbH is a leading company in sustainable energy storage. We specialize in stationary battery systems based on innovative redox flow technology. Our metal-free batteries provide a safe, sustainable, and scalable solution to support the shift towards renewable energy. By avoiding critical raw materials like lithium and cobalt, we contribute significantly to a greener, more sustainable future. Our technology has broad applications in renewable energy systems, grid stabilization, and industrial processes.

As a subsidiary of Suqian Time Energy Storage Technology Co., Ltd., a leading manufacturer of metal-free flow batteries and key components, Jena Flow Batteries benefits from extensive technological and production resources. This strategic partnership allows us to leverage GWh-scale production capacities while continuing to develop cutting-edge storage technologies in Jena, Germany. Synergies enable us to deliver reliable and efficient storage systems that ensure stable and sustainable energy supply.

Our Milestones

2012 bis 2015

Invention of the metal-free flow battery at Friedrich Schiller University Jena, advanced and patented in collaboration with Jenabatteries GmbH.

2019

Launch of the world’s first organic flow battery, EnergyKeeper, in field operation (30 kW/100 kWh).

2020 bis 2022

Deployment of several pilot systems with 100 kW capacity.

2021

Establishment of Suqian Time Energy Storage Co., Ltd. in China and preparations for mass production.

2023

With the founding of Jena Flow Batteries GmbH, the mission and activities of Jenabatteries GmbH are continued in Germany.

2024

Large metal-free flow batteries go online in China.

Rapid Growth for a Greener Future

Suqian Time Energy Storage in China is our key production partner, playing a vital role in scaling up manufacturing capacity for flow batteries. Since its founding in 2021, the company has achieved significant milestones, including the commissioning of a 1 GWh production line. With the target to reach 5 GWh production capacity by 2026, these gigafactories will be critical to meeting the rising demand for energy storage in industrial projects. For more details about our parent company, visit www.energydefender.cn.

With these advanced manufacturing facilities, Jena Flow Batteries provides access to sustainable energy storage solutions and reliable supply chains for large-scale projects across Europe.

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Quality Standards

The production processes at Suqian Time Energy Storage adhere to strict quality standards. Their vertically integrated production approach covers the entire value chain, from electrolyte and stack component manufacturing to battery assembly. This ensures high quality and cost efficiency. Certifications such as ISO 9001 and over 100 registered patents highlight the company's innovation and commitment to excellence. By collaboration with leading research institutions advanced technologies, such as a specially developed AEM membrane, are enhancing battery performance and enabling new products.

Our Leadership Team

 

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Dr. Yutong Zhu

General Manager

Born in Shanghai, Dr. Zhu earned his Ph.D. in Chemistry from RWTH Aachen in Germany. He has held various roles in research and sales at Degussa AG before assuming leadership positions in Asia. In 2018, he founded a consultancy and now serves as the Managing Director of Jena Flow Batteries.

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Dr. Tobias Janoschka

CTO, DGM

Dr. Janoschka holds a degree in Chemistry, an M.Sc. in Business Administration, and a Ph.D. in Polymer Batteries from Friedrich Schiller University. He built his professional expertise through experience in Germany, Asia, and the United States. In 2013, he co-founded Jenabatteries GmbH, pioneering organic flow batteries. His portfolio includes 30 scientific publications, multiple patents, and numerous awards.

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Dipl.-Ing. Ingobert Walter

Chief Engineer

With a degree in Electrical Engineering from Wiesbaden University of Applied Sciences and 30 years of experience, Mr. Walter has worked in machine construction and battery technology. Notably, he led testing at AKASOL, focusing on lithium-ion systems, and managed field testing and quality control at MAN Roland where he established TeleSupportCenters.

Our Company History

Jena Flow Batteries GmbH was built on the groundbreaking legacy of Jenabatteries GmbH, a pioneer in metal-free redox-flow batteries. The technology was invented and patented in collaboration with Friedrich Schiller University in the early 2010s. In 2013, an interdisciplinary team with key contributions by Dr. Tobias Janoschka, Dr. Martin Hager, and Prof. Ulrich S. Schubert founded JenaBatteries GmbH and systematically advanced the technology to market readiness.

In 2019, the company achieved a breakthrough with the EnergyKeeper, the world’s first metal-free, organic flow battery tested successfully in the field. Despite these technological successes, Jenabatteries GmbH filed for insolvency in 2023 due to financial challenges. Later that year, Jena Flow Batteries GmbH was founded, acquiring the assets and technology of Jenabatteries GmbH. As a subsidiary of Suqian Time Energy Storage, a leading Chinese corporation in the manufacturing of metal-free flow battery systems and their key components, the new entity focuses on advancing the technology and preparing it for European market entry by 2025. Jena Flow Batteries GmbH aims to become a key player in the redox flow battery sector, driving the energy transition forward.

Our Values

Unsere Werte.

Responsibility & Sustainability

We are committed to making a positive impact on society, enabling climate neutrality while avoiding raw materials from questionable sources.

Reliability

We set clear, realistic goals and take consistent steps to achieve them, driving projects efficiently to contribute to the energy transition.

Transparency

Open and honest communication fosters trust. We ensure clarity about our product properties and standards, learning from both progress and setbacks.

 

Collaboration

The energy transition requires collective effort. Partnerships with suppliers, service providers, and project participants, as well as integrating other technologies, are vital to our success.