Sunrise new energy receives approval for metal sulfide-doped hard carbon composite material patent, further advancing sodium battery material frontier technology

Zibo, china, dec. 29, 2023 (globe newswire) -- sunrise new energy co., ltd. (“sunrise”, the “company”, “we” or “our”) (nasdaq: epow), today announced that its subsidiary, sunrise (guizhou) new energy materials co., ltd., has received preliminary approval from the national intellectual property office for its invention patent titled "preparation method of metal sulfide-doped hard carbon composite material". the official document number assigned is 2023121500112460. this invention falls within the field of secondary battery material preparation, focusing on the preparation method for a metal sulfide-doped hard carbon composite material.
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