What is SoftBank Corp.'s plan for its Osaka factory, and what is the strategic goal behind it?

SoftBank Corp. plans to transform part of its factory in Sakai city, Osaka — acquired from Sharp Corp. for ¥100 billion — into one of Japan’s largest production lines for large-scale batteries, with an estimated total capacity of several gigawatt hours, to power its own AI data centers; the initiative supports CEO Junichi Miyakawa’s long-term strategy to turn the telecom unit into an AI enabler and aligns with Masayoshi Son’s broader ambition to strengthen SoftBank’s role in the global AI race.

When does SoftBank Corp. aim to launch battery production, and what approvals or conditions remain pending?

SoftBank Corp. aims to bring the battery production online within the next five years; the venture has received Masayoshi Son’s nod of approval but remains subject to final board approval by the telecom unit, and details of the plan are still in flux ahead of its scheduled announcement next month alongside a new five-year business plan.

SoftBank Prepares to Manufacture Batteries for AI Data Centers

Apr 23, 2026

SoftBank plans to build a major battery production line in Osaka to power its AI data centers within five years. The venture targets several gigawatt hours capacity, exploring lithium iron phosphate and advanced technologies to enhance supply chain self-reliance.

bloomberg

2026-04-23

SoftBank Prepares to Manufacture Batteries for AI Data Centers

2026-05-10

SoftBank Plans to Make Large-Scale Batteries for AI Data Centers

SoftBank Prepares to Manufacture Batteries for AI Data Centers

FAQ