Microvast Holdings has announced that it has hit a significant milestone in the development of its true All-Solid-State Battery (ASSB) technology, which features a bipolar design that reduces the number of interconnections between cells, modules and packs, simplifying the system architecture to enhance energy efficiency and operational safety.
This advancement is a key step forward in improving safety, energy density and efficiency for critical applications, the company says.
Unlike conventional lithium-ion or semi-solid-state batteries, Microvast’s ASSB uses a bipolar stacking architecture that enables internal series connections within a single battery cell, thereby eliminating liquid electrolytes. This allows a single cell to achieve dozens of volts or higher based on specific application needs.
Microvast has also developed a proprietary all-solid electrolyte separator membrane based on an advanced polyaramid separator. The separator is non-porous and tailored for solid-state applications. It ensures excellent ionic conductivity, structural stability and long-term durability, addressing one of the most critical technical challenges in solid-state battery technology.
The company says the ASSB’s ability to maintain stable high-voltage operation without compromising safety or long-term reliability is a transformative innovation in the battery industry. It can be custom made to meet the specific energy and spatial requirements of advanced robotic systems.
“Our solid-state battery innovation represents a significant leap forward in addressing real-world safety and efficiency challenges,” said Microvast’s CEO, Yang Wu.