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Chinese sodium-ion battery matches Tesla on build quality, teardown finds
A commercial sodium-ion battery from Chinese manufacturer Hina matches Tesla’s lithium-ion cells on manufacturing quality and internal design, according to an independent teardown published in the Cell Press journal Cell Reports Physical Science . Researchers at Germany’s RWTH Aachen University measured cell-to-cell resistance varying by just 5.3% across 120 cells — a sign of tightly controlled mass production rivaling the best lithium cells on the market.
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