Summary
- Microvast has advanced the development of all-solid-state battery (ASSB) technology
- The ASSB technology uses a non-porous polyaramid separator for high ionic conductivity and durability
- This technology improves safety, energy density, and efficiency for various applications
- Microvast’s ASSB uses a unique bipolar stacking architecture for internal series connections
- The elimination of liquid electrolytes allows Microvast’s batteries to achieve higher voltages based on specific needs, leading to potential transformative applications
Article
US battery technology developer Microvast has made significant progress in the development of its all-solid-state battery (ASSB) technology. The company’s all-solid electrolyte separator membrane is based on a polyaramid separator, which is non-porous and specifically designed for solid-state applications. This innovation ensures high ionic conductivity, structural stability, and long-term durability, addressing a key technical challenge in solid-state battery technology.
This breakthrough in technology is expected to enhance safety, energy density, and efficiency for applications such as data center backup power systems and electric school buses. Additionally, it opens the door for future advancements in robotics and electric vehicles. Unlike conventional lithium-ion or semi-solid-state batteries, Microvast’s ASSB utilizes a bipolar stacking architecture that enables internal series connections within a single battery cell. This design simplifies the overall system architecture, reduces interconnections between cells, modules, and packs, and enhances energy efficiency and operational safety.
Unlike traditional lithium-ion and semi-solid-state batteries that operate at nominal voltages of 3.2-3.7 V per cell due to the limitations of liquid electrolytes, Microvast’s technology eliminates the need for liquid electrolytes. This allows a single cell to achieve higher voltages based on specific application requirements, providing greater flexibility in cell design. Microvast is now moving to the pilot production phase, where its engineering team will work towards overcoming manufacturing challenges to bring their technology to market.
According to Dr. Wenjuan Mattis, the CTO of Microvast, the company’s bipolar architecture combined with the all-solid separator simplifies battery design, enhances energy density, and improves operational safety. The absence of liquid electrolytes further allows their batteries to operate at voltages that conventional designs cannot reach, demonstrating the transformative potential of their technology. This flexibility in cell design empowers Microvast to tackle emerging applications and drive innovation in the battery technology space.
Overall, Microvast’s advancements in ASSB technology represent a significant step forward in the battery industry. By addressing key challenges in solid-state battery technology, the company is paving the way for safer, more efficient, and higher energy density battery solutions for a variety of applications. With a focus on innovative design and operational safety, Microvast is positioning itself as a leader in the development of advanced battery technologies that have the potential to revolutionize industries such as data storage, transportation, and robotics.
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