China has introduced a draft of the first chapter of a national solid state battery standard. Is this a sign of a resolve to take this technology to market?
The level of detail, and the obvious trouble taken, suggest that this is likely the case.This is a clear call for the West to follow suit, so it does not lag behind in the scramble to seize the market.
Birds Eye View of China’s Solid Battery Standard
Launching the first chapter for comment, indicates that this promising technology is on its way from laboratory to production. The first chapter deals with terminology, and classification of solid state batteries for electric vehicles.
The detail could change, depending on stakeholder comment. However, the overall format of the first chapter of China’s solid state battery standard will continue to define terminology, classification, coding, and other basic aspects of these solid state batteries.
The Chinese website STCN, that we link to below, suggests the standard will contain four main chapters. These main themes are currently terminology and classification, performance specifications, safety specifications, and lifespan specifications.
More Detail On China’s New Standrd
China’s draft solid battery classification system, lays down stringent standards in terms of ion transfer chemistry. It differentiates between liquid batteries, hybrid solid-liquid batteries, and solid state batteries in terms of this approach.
But the solid state battery standard does not use the term ‘semi-solid-state battery’ anywhere. Instead, it classifies solid state batteries according to type of electrolyte, type of ion conducted, and application field.
The system goes even further than that, in terms of the type of solid electrolyte battery. These break down further into sulfide solid state batteries, oxide solid state batteries, polymer solid state batteries, halide solid state batteries, as well as composite-electrolyte solid state batteries.
But the discrimination does not stop there. Solid batteries are divided – just as one example – into solid state lithium-ion batteries, solid state sodium-ion batteries, etc., based on the type of ion conducted. And finally, the standard discriminates between high-energy solid state batteries, and high-power solid state batteries.
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