In a significant step toward revolutionizing electric vehicle (EV) battery performance, Chinese tech giant Xiaomi has registered a groundbreaking patent for a new solid-state battery design featuring a layered electrode architecture. This move signals the company’s growing ambitions in the EV space, where high-performance batteries are key to long-term success.
Xiaomi’s Solid-State Innovation: What’s New?
As per documents reported by electrive.com, the patented battery structure consists of:
A multi-layer electrode assembly,
A solid-state electrolyte composed of polymers and metal salts,
Active materials, conductive agents, and binders arranged in layers.
One of the core innovations lies in how the solid electrolyte penetrates vertically through the electrode layers. This configuration significantly reduces the distance lithium ions must travel, thereby enhancing ionic conductivity, energy density, and charging speed—long-standing challenges in solid-state battery development.
Game-Changing Battery Performance
The patent includes details that position Xiaomi’s prototype among the most advanced in the world:
CTB (Cell-to-Body) design with a 77.8% volume efficiency,
Pack height as low as 120 mm, optimizing vehicle interior space,
Estimated driving range of over 1,200 km (745 miles),
Ultra-fast charging: 800 km range in just 10 minutes.
These specifications could give Xiaomi a powerful edge in the increasingly competitive EV battery race.
Solid-State Battery Landscape: Rising Competition
Solid-state batteries are touted as the future of EV energy storage due to their:
Higher energy density,
Improved thermal stability,
Greater safety compared to liquid-based lithium-ion batteries.
Automakers and battery manufacturers such as Toyota, BMW, Nio, and CATL are also racing toward commercialization, with production timelines mostly targeting 2027–2030. Xiaomi’s patent, however, hints at earlier deployment by leveraging existing lithium-ion manufacturing infrastructure, a move that could reduce time-to-market.
Xiaomi’s EV Strategy Gains Momentum
With its debut EV, the Xiaomi SU7 sedan, already entering production, this battery development adds critical depth to Xiaomi’s automotive roadmap. The company aims to start global EV sales by 2027, and in-house solid-state battery development could significantly reduce reliance on suppliers such as CATL and BYD.
By aligning battery innovation with its broader vertical integration strategy, Xiaomi is setting the stage to become a formidable player in the global EV market.
Disclaimer
This news article is based on publicly available sources, including reports from electrive.com dated June 16, 2025. All information about Xiaomi’s patent and EV plans is accurate as of the time of writing. The content is intended for informational purposes only and does not constitute investment, legal, or professional advice. Xiaomi has not made any official announcement regarding the commercial release of the patented technology.