CIBF 2026 Shenzhen: JOINSUN Showcases Cylindrical Lithium Cells, Accelerates Global Expansion
Newsroom | Published by Alex on August 15, 2025
SHENZHEN – As the global energy storage and electric vehicle markets continue their rapid expansion, the spotlight at the 2026 China International Battery Fair (CIBF) has fallen on high-performance cylindrical cells. Among the key exhibitors drawing significant attention is JOINSUN Energy Technology Co., Ltd. , a dynamic and fast-growing manufacturer of cylindrical lithium-ion batteries.
Held at the Shenzhen World Exhibition & Convention Center, CIBF 2026 has once again established itself as Asia’s premier platform for battery technology. JOINSUN, occupying a prominent booth in the core power battery zone, is showcasing its flagship product lineup: the 18650, 21700, and 26750 cylindrical cells. These form factors are widely recognized for their balance of energy density, thermal management, and structural stability, making them ideal for everything from power tools and e-mobility to backup energy storage systems.
According to company representatives, the 21700 cell has been a particular highlight, praised by visiting international buyers for its high discharge rate capability and extended cycle life. The larger 26750 model, meanwhile, is gaining traction in the industrial and energy storage sectors, where higher capacity per cell is a critical advantage.
Behind JOINSUN’s growing reputation is a substantial production base. The company operates a state-of-the-art facility covering 20,000 square meters in the Yantan District of Zigong City, Sichuan Province, a region increasingly recognized as a hub for new energy manufacturing in Western China. Since its establishment in 2022, JOINSUN has focused on vertical integration and quality control, achieving consistent yields in a highly competitive market.
“In just four years, we have scaled from a startup to a trusted supplier for clients across five continents,” said a senior sales manager at the JOINSUN booth. “Our factory in Zigong is designed for both high-volume output and rigorous safety testing, which is the foundation of our customer's trust.”
The JOINSUN global footprint is expanding rapidly. While firmly established in the domestic Chinese market, JOINSUN has successfully penetrated key international regions. During CIBF 2026, We highlighted the new products: NCM Lithium-ion cells:
INR 21700-65D (6500mAh),
INR 2700-60D (6000mAh),
INR 18650-42D (4200mAh),
INR 18650-40D (4000mAh),
26750-100D (10Ah, 10000mAh),
with buyers from Southeast Asia, the Middle East, Europe, and Africa. Visitors from Vietnam and Thailand have shown particular interest in the 18650-42D battery cells.
As the exhibition continues, JOINSUN’s presence underscores a broader trend: the shift toward specialized, high-rate cylindrical cells for diverse energy needs. With a modern factory, a clear product roadmap, and a rapidly growing global sales network, JOINSUN is positioning itself as a formidable player in the lithium battery industry.
