Manufacturing cutting-edge battery cell prototypes for future use
In the rapidly evolving world of battery technology, a significant shift is underway, with next-generation battery production advancing at an active pace. This article, published by Battery News, provides a global overview of planned and implemented projects in this field.
China, spearheaded by its industrial powerhouses, is making strides in the production of sulfide-based solid-state batteries (SSBs). The China All-Solid-State Battery Collaborative Innovation Platform (CASIP) plays a pivotal role in this development, with China's battery giants like CATL rapidly commercializing alternative solid-state technologies, such as sodium-ion batteries, which boast comparable energy densities to lithium-ion and high cycle life and temperature range compatibility.
In contrast, North America and Europe predominantly focus on oxide- and polymer-based solid electrolytes. For instance, BMW Group and Solid Power (a U.S. company) are testing large-format all-solid-state battery cells using sulfide electrolytes in vehicles like the BMW i7, indicating a strong interest in sulfide chemistry, albeit with ongoing development rather than mass production.
Korean companies, following China's lead, view sulfide electrolyte innovations as promising but currently limited by difficulties in large-scale production. Meanwhile, oxide-based electrolytes, favored in some European and U.S. research and development settings, tend to offer better chemical stability but suffer from lower ionic conductivity and more challenging interface issues compared to sulfide electrolytes. Polymer electrolytes, another category often explored in North America and Europe, offer flexibility and manufacturing advantages but currently lag behind sulfide electrolytes in terms of ionic conductivity and energy density.
The "FoFeBat4" research project, conducted at RWTH Aachen University, is one example of the ongoing efforts in next-generation battery production. The data used in this article was compiled as part of the "FoFeBat4" project, funded under the Funding ID 03XPO590E.
The development of SSB technology is a global effort, with various regions focusing on different aspects of the technology. However, crucial details about SSB cell technology, specifically the use of solid electrolytes, remain unclear or undisclosed globally.
Asia, led by China, continues to dominate the market for sulfide-based SSBs. The progress being made worldwide in the development of SSB technology underscores the need for continued collaboration and innovation to address the challenges of stability, scalability, and ionic conductivity.
Scientists and industries in Asia, particularly China, are concentrating on the production of sulfide-based solid-state batteries (SSBs), a key aspect of next-generation science and technology. Meanwhile, North America and Europe are mainly exploring oxide- and polymer-based solid electrolytes, indicating a global effort to advance SSB technology, but with many crucial details still unclear or undisclosed worldwide.
