Chinese manufacturer of liquid, hybrid and solid-state electrolyte materials for lithium-ion and sodium-ion batteries.
Langu New Energy (蓝固新能源, registered as Hangzhou Langu New Energy Co., Ltd.) develops and manufactures electrolyte materials for lithium-ion and sodium-ion batteries, with a technology roadmap spanning liquid electrolytes, hybrid solid-liquid electrolytes, and all-solid-state oxide electrolytes such as LATP, LLZO, and LLTO. The company was founded in May 2021 by Dr. Li Lifei and operates subsidiaries in Jiangsu (Liyang), Zhejiang (Huzhou), and Shandong (Zibo).
In May 2026, the company began production at what it describes as China's first ten-thousand-ton-per-year oxide solid electrolyte line, located at its Liyang, Jiangsu facility. It also operates a separate line for lithium and sodium battery liquid electrolytes at its Zibo base, and is building a further solid electrolyte line at a Suining, Sichuan facility.
The company has raised capital across several rounds since a 2021 seed round, including a Series A led by Haisong Capital in 2022, a Series A+ round in 2023, a Series B round in late 2025, and a further ~RMB 200 million round in November 2026 backed by a group of state-linked and industrial investors including a Sinochem-affiliated new materials fund and local government investment platforms.