BASF delivers first CAM for semi-solid-state batteries to Welion New Energy

Significant progress through close collaboration in the solid-state battery sector

BASF Battery Materials, through its joint venture BASF Shanshan Battery Materials Co., Ltd. (BSBM), has achieved a major milestone in next-generation battery technology. In collaboration with Beijing WELION New Energy Technology Co., Ltd., BASF has successfully delivered its first batches of mass-produced Cathode Active Materials (CAM) for Semi-Solid-State batteries – marking a significant step towards industrializing Solid-State batteries.

With the rapid development of the new energy industry, the market demands higher energy density and further enhanced safety from batteries. Solid-State batteries, including Semi-Solid-State batteries, are seen as the next generation of battery technology and have garnered widespread attention.

WELION New Energy is recognized as a pioneer with over 40 years of experience in exploring Solid-State battery technologies that are primarily used in electric vehicles, energy storage, and other applications such as drones and power tools. BSBM brings more than two decades of expertise in cathode active materials development and production, and, with that, the ability to handle critical challenges of Solid-State batteries.

Since the project initiation in August 2024, both parties have moved swiftly from concept to mass production in just one year through seamless teamwork and a shared commitment to technological advancement.

The BSBM R&D team developed an ultra-high Nickel NCM (Nickel Cobalt Manganese) cathode active material with a unique composite coating layer to address interface issues between CAM and solid electrolytes. This not only enhances the energy density by higher capacity and lower resistance but also improves the cycling performance and calendar life through suppressing side reactions in interfaces between CAM and electrolyte. Therefore, this successful collaboration represents a true milestone toward the next generation of advanced batteries.

“The commercial implementation of this project is a result of our high technological competency as well as the close interaction between our technical teams,” commented Dr. Xin Xia, CTO of BSBM. “We are proud to jointly contribute to the future of the battery industry,” added Dr. Wenjun Li, Director of WELION New Energy Engineering Institute.

“We are impressed by BASF’s robust technology and fast response. As a leading manufacturer in the Solid-State battery industry, WELION will use BASF’s cathode materials in our new generation of Semi-Solid-State batteries and look forward to more joint projects both at home and globally,” said Dr. Jin Xiang, General Manager of WELION New Energy.

“We sincerely thank WELION New Energy for their trust. This collaboration marks a milestone for our battery materials business and is a significant step forward in the field of Solid-State batteries. We look forward to further deepening our cooperation with WELION New Energy and achieving further breakthroughs in Solid-State battery technology together,” added Desmond Long, Senior Vice President of BASF Battery Materials and CEO of BSBM.