Beijing Weilan New Energy Technology

WeLion New Energy designs semi-solid-state batteries combining liquid and solid components to increase energy density. The technology targets electric vehicles and cargo ships, offering higher power output in compact form factors. The company aims to address energy storage challenges in heavy-duty and long-range applications.

Oct 2026MIT Technology ReviewNews article

WeLion New Energy, a supplier of semi-solid batteries to NIO, has filed for an initial public offering (IPO). If successful, the company could become the first solid-state battery firm listed on China’s A-share market. The move highlights growing investor interest in advanced battery technologies for electric vehicles.

Dec 2025ChinaEVHomeNews article

WeLion, a semi-solid-state battery supplier for Nio, has started pre-IPO preparations to pursue an onshore stock market listing in China. The company aims to formalize its financial and regulatory readiness ahead of a potential public offering. WeLion’s technology focuses on advancing battery performance for electric vehicles.

Dec 2025CnEVPostNews article

Nio partners with semi-solid-state battery supplier WeLion and a JAC subsidiary to co-develop electric vehicles (EVs) offering an extended range of up to 1,000 kilometers. The collaboration integrates WeLion’s advanced battery technology into JAC’s EV platforms, targeting long-haul and high-performance applications. This joint effort aims to enhance energy efficiency and driving range for future electric vehicle models.

Apr 2024Batteries NewsNews article