Texas-based Microvast unveils True All-Solid-State Battery (ASSB) tech for EVs and power backup systems

Microvast Holdings, Inc. is a battery technology company headquartered in Stafford, Texas. On January 9, the organization announced a huge leap in battery innovation with the introduction of its True All-Solid-State Battery (ASSB) technology. It promises to step up battery safety, energy density, and operational efficiency, which means it will cater to a variety of industries, including electric vehicles (EVs), robotics, and energy storage.

The standout feature of Microvast's ASSB is its bipolar stacking architecture. Unlike conventional lithium-ion batteries that rely on liquid electrolytes, this design eliminates the liquid component, which in turn enables higher voltages and more safety. By integrating internal series connections within a single cell, the architecture simplifies system design and boosts energy efficiency. The proprietary all-solid electrolyte separator membrane, crafted from advanced polyaramid translates to excellent ionic conductivity and long-term durability.

During performance tests, the battery demonstrated a stable voltage range between 12V and 21V, which exceeds the capabilities of traditional designs. This makes it suitable for applications demanding high-energy density without making compromises on safety.

For EVs, Microvast’s ASSB could improve both performance and reliability. The elimination of liquid electrolytes allows for safer high-voltage operations, enabling smaller and lighter battery packs without sacrificing energy output. The compact design of the battery could increase the range of EVs while reducing charging times. Furthermore, the robust architecture lowers risks associated with thermal runaway, a critical concern in EV safety.

The flexibility of ASSB tech to adapt to custom form factors should open up possibilities for EV manufacturers to design new space-saving battery layouts. These upgrades may also lower production costs in the long term, which in turn should make electric vehicles more accessible to a broader audience.