Solid-State EV Battery Coating Breakthrough
A research team from Tsinghua University and Tianjin University has developed a silver-based, flexible "armor" that stabilizes the most fragile part of solid-state cells.
Their coating kept test batteries running for 4,500+ hours under heavy cycling and held stable for 7,000+ hours at –30 °C.
What is the Coating?
The coating is a solid-state EV battery coating that resists cracking and performs in deep cold, targeting the core barrier to commercialization: real-world durability.
How it Works
Solid-state batteries replace flammable liquid electrolyte with a solid one, promising higher energy density and better safety.
The solid electrolyte interphase (SEI) is a hidden weakness that keeps showing up.
Why it Matters
The new coating delivers a significant boost to durability and cold performance, making it a potential front-runner in the race to build better EV batteries.
Author's summary: Chinese researchers develop flexible "armor" for solid-state EV batteries.
- 4,500+ hours under heavy cycling
- 7,000+ hours at –30 °C