China introduced its first national standard for solid-state EV batteries as the “holy grail” of battery tech moves closer toward mass production.
China launches solid-state EV battery national standard
China has emerged as a true automotive powerhouse thanks to its lead in the shift to electrification. It’s now projected to overtake Japan in global vehicle sales for the first time in 2025.
To stay ahead, domestic leaders like BYD and CATL are advancing new batteries and other EV technology, including solid-state, LFP, sodium-ion, and ultra-fast charging in five minutes.
After introducing its first national standard for solid-state EV batteries on Tuesday, China is taking another big step toward bringing the promising new tech to market. China’s National Automotive Standardization Technical Committee released “Solid-State Battery for electric vehicle – Part 1: Terms and Classification,” which is now open for public discussion.
The draft is designed to categorize and clearly define solid-state batteries. Based on how ions move within the cell, batteries are classified as liquid, hybrid solid-liquid, or solid-state.
Since the draft doesn’t include “semi-solid-state” batteries, which several domestic brands have already mentioned, it appears this classification will no longer be used.
It then breaks solid-state batteries down by electrolyte type (sulfide, oxide, composite, polymer, or halide), conducting ion (lithium or sodium), and whether it’s high-energy or high-power.
The draft sets the allowable weight-loss rate to qualify as a solid-state battery at no more than 0.5%, stricter than the 1% rate set by the China Society of Automotive Engineers earlier this year.
China is the first to propose a national standard for solid-state EV batteries. The draft is the first of four installments as the promising new battery tech inches closer to commercialization.
CATL and BYD already account for over 50% of the global EV battery market, but both are betting on new tech to stay ahead. Both aim to begin producing solid-state batteries on a small scale around 2027, with mass production toward the end of the decade.
Source: CarNewsChina, China National Automotive Standardization Technical Committee
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