Why Is Everyone Trying to Build a Solid-State Battery?

Solid-state batteries are gaining significant investment from major manufacturers like CATL, BYD, and LG due to their potential for higher energy density and improved safety. The article explains the chemical mechanism of these batteries compared to traditional liquid-electrolyte lithium-ion versions.
80 1 Share A battery technology that’s getting a lot of attention is solid-state batteries, lithium-ion batteries that replace the liquid electrolyte with a solid material. Chinese battery manufacturer CATL alone had more than 1,000 people devoted to solid-state battery research as of 2024, and battery manufacturers like BYD , LG , and Samsung are also working on the technology. US and European startups making solid-state batteries have collectively raised over $4 billion as of 2025 .
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