Leawat Unveils Groundbreaking Tab-less Design for 46-Series Cylindrical Batteries at The Battery Show Europe 2025

Chinese Innovator Leawat Shines at The Battery Show Europe 2025 with Revolutionary Tab-less Design for 46-Series Large Cylindrical Batteries

STUTTGART, Germany, June 3, 2025 /PRNewswire/ — Yantai Leawat-Power Technologies CO., Ltd., a prominent innovator in large cylindrical battery technology, made a remarkable impression at The Battery Show Europe 2025, held at the Stuttgart Exhibition Centre from June 3–5. The company introduced its cutting-edge 46-series large cylindrical batteries, showcasing advancements in fast charging, safety, and versatility, further establishing its role as a significant player in the global energy storage and electric mobility markets.

Innovative Technology Takes Center Stage

During the exhibition, Leawat presented its globally patented “full-current-path” and “tab-less” design. This groundbreaking structure eliminates all welding points, resulting in a 20% reduction in internal resistance. This innovation facilitates ultra-fast charging, effectively addressing a major concern for electric vehicle (EV) users worldwide. Additionally, the batteries are equipped with a thermal-electrical decoupling system featuring a bottom-mounted single-side exhaust valve, which ensures efficient heat dissipation and uniform temperature distribution across the cell. Coupled with micro-arc suppression technology, these design features significantly lower the risk of thermal runaway, complying with the highest international safety standards, including IEC62619.

High Performance for Diverse Applications

Leawat’s 46-series batteries are distinguished by their “Four High” characteristics:

– **High Energy Density**: Achieving over 5% improvement in system-level energy density through a unique “One-Unit stacking integration” design.
– **High Power Output**: Capable of supporting ultra-high discharge rates of up to 50C, making them suitable for high-demand applications such as electric vehicles, drones, and industrial robots.
– **High Safety Assurance**: Reducing the risk of foreign matter intrusion by 75%, thanks to innovative externalized assembly and self-gravity assisted technologies. Three pioneering technologies—“stress-relief,” “gradual SEI formation,” and “distributed electrolyte retention”—ensure a stable electrode structure, significantly extending the cell cycle life to over 8000 cycles.
– **High Environmental Adaptability**: With a wide operational temperature range of -40°C to 60°C, enabled by self-developed thermal equilibrium technology, these batteries ensure reliable performance even in extreme conditions.

Global Ambitions and Market Expansion

Leawat’s products have received an excellent market response in China and have attracted considerable interest from European automakers, energy storage companies, and tech innovators. The company is prepared to supply standardized cylindrical cells and tailored system solutions across various sectors, including:

– **Electric Mobility**: Catering to high-end EVs, two-wheelers, and eVTOLs.
– **Energy Storage**: Supporting utility-scale projects, commercial and industrial storage, as well as residential systems.
– **Smart Equipment**: Focusing on robotics (such as service robots and construction machinery) and portable power solutions.

Industrial Scale and Future Plans

Leawat is currently executing a 25GWh large cylindrical battery project, backed by a 180PPM high-speed production line—the fastest of its kind in China. The first phase, with a 4GWh capacity, has already garnered positive market feedback within China. The company aims to reach the full 25GWh capacity by 2027, targeting annual sales exceeding ¥15 billion ($2.1 billion).

Mr. Feng Zihao, Vice General Manager of Leawat, stated, “We are excited to present our technologies to the global market. Our objective is to collaborate with partners worldwide to accelerate the transition to clean energy. With our commitment to innovation, safety, and scalability, we believe Leawat will play a crucial role in shaping the future of the lithium battery industry.”