Formosa Smart Energy and university partner to develop solid-state lithium batteries

台塑智慧能源與大學合作開發固態鋰電池

Agencies also launch pilot production line to test new battery technology


TAIPEI (Taiwan News) — Formosa Smart Energy partnered with Ming Chi University of Technology's battery research center and developed an all-solid-state lithium battery prototype.

The new battery technology has been granted 19 international patents. Formosa Smart Energy General Manager Liu Hui-chi (劉慧啟) said the two agencies also developed a method to reduce interfacial resistance between the electrode and the solid-state electrolyte, a major challenge in solid-state battery innovation, per CNA.

Company Chair Sandy Wang (王瑞瑜) said the batteries offer advantages, including high energy density, extended driving range, and enhanced safety. She highlighted that the technology significantly reduces the risk of battery self-ignition or explosion, making it well-suited for EVs.

Wang explained the batteries utilize solid electrolyte technology, which replaces the liquid electrolyte and separator in traditional lithium-ion batteries. This allows for a simplified battery packaging design and cooling system, while reducing the weight and volume of the battery.

Additionally, the two agencies launched a pilot production line for testing the new batteries. The company said the line encompasses synthesizing key components, cell stacking, module assembly processes, and quality control measures. It also incorporates the company's technology to improve battery performance and extend cycle life.

Liu said the company invested NT$230 million (US$7.1 million) in the pilot production line. He noted that the batteries produced will be tested in drones and small EVs, with the goal of full-scale production by June 2027.

In March, Formosa Smart Energy opened Taiwan's largest battery cell factory in the Changhua Coastal Industrial Park, with an investment of NT$16 billion. The factory supplies lithium battery packs for domestic electric bus operators, with up to 80% of the production line automated.

Liu added that the company aims to reach NT$10 billion in revenue this year. He noted that orders from affiliated companies within the Formosa Plastics Group account for 30% of total demand. The company will also begin delivering battery packs for domestic electric logistics vehicles this year.